Liquidsoap scripting language reference

The Source / … categories contain all functions that return sources. The Input functions are those which build elementary sources (playing files, synthesizing sound, etc.). The Output functions are those which take a source and register it for being streamed to the outside (file, soundcard, audio server, etc.). The Visualization functions are experimental ones that let you visualize in real-time some aspects of the audio stream. The Sound Processing functions are those which basically work on the source as a continuous audio stream. They would typically be mixers of streams, audio effects or analysis. Finally, Track Processing functions are basically all others, often having a behaviour that depends on or affects the extra information that liquidsoap puts in streams: track limits and metadata.

Source / Conversions
Source / Input
Source / Liquidsoap
Source / MIDI Processing
Source / Output
Source / Sound Processing
Source / Sound Synthesis
Source / Track Processing
Source / Video Processing
Source / Visualization
Bool
Control
Interaction
Liquidsoap
List
Math
Pair
String
System

Bool

Control

Input

Interaction

`add_skip_command`

Add a skip function to a source when it does not have one by default.

Type:

('c.{id : () -> 'b, skip : (() -> 'a)}) -> unit

Arguments:

(unlabeled) (of type 'c.{id : () -> 'b, skip : (() -> 'a)}): The source to attach the command to.

`audioscrobbler.submit.full`

Submit songs using audioscrobbler, respecting the full protocol: First signal song as now playing when starting, and then submit song when it ends.

Type:

(user : string, password : string, ?host : string,
 ?port : int, ?source : string, ?length : bool,
 ?delay : float, ?force : bool, source(audio='b,
 video='c, midi='d)
 .{on_metadata : (((([string * string]) -> unit)) -> 'a)
 }) -> source(audio='b, video='c, midi='d)

Arguments:

user (of type string)
password (of type string)
host (of type string, which defaults to "post.audioscrobbler.com")
port (of type int, which defaults to 80)
source (of type string, which defaults to "broadcast"): Source for tracks. Should be one of: “broadcast”, “user”, “recommendation” or “unknown”. Since liquidsoap is intented for radio broadcasting, this is the default. Sources other than user don’t need duration to be set.
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
delay (of type float, which defaults to 10.): Submit song when there is only this delay left, in seconds.
force (of type bool, which defaults to false): If remaining time is null, the song will be assumed to be skipped or cuted, and not submitted. Set to zero to disable this behaviour.
(unlabeled) (of type source(audio='b, video='c, midi='d) .{on_metadata : (((([string * string]) -> unit)) -> 'a)})

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`interactive.harbor`

Expose interactive variables through habor http server.

Type:

(?port : int, ?uri : string) -> unit

Arguments:

port (of type int, which defaults to 8080): Port of the server.
uri (of type string, which defaults to "/interactive"): URI of the server.

`lastfm.nowplaying`

Submit metadata to lastfm.fm using the audioscrobbler protocol (nowplaying mode).

Type:

(user : string, password : string, ?length : bool,
 [string * string]) -> unit

Arguments:

user (of type string)
password (of type string)
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
(unlabeled) (of type [string * string])

`lastfm.submit`

Submit metadata to lastfm.fm using the audioscrobbler protocol.

Type:

(user : string, password : string, ?source : string,
 ?length : bool, [string * string]) -> unit

Arguments:

user (of type string)
password (of type string)
source (of type string, which defaults to "broadcast"): Source for tracks. Should be one of: “broadcast”, “user”, “recommendation” or “unknown”. Since liquidsoap is intented for radio broadcasting, this is the default. Sources other than user don’t need duration to be set.
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
(unlabeled) (of type [string * string])

`lastfm.submit.full`

Submit songs to lastfm using audioscrobbler, respecting the full protocol: First signal song as now playing when starting, and then submit song when it ends.

Type:

(user : string, password : string, ?source : string,
 ?length : bool, ?delay : float, ?force : bool,
 source(audio='b, video='c, midi='d)
 .{on_metadata : (((([string * string]) -> unit)) -> 'a)
 }) -> source(audio='b, video='c, midi='d)

Arguments:

user (of type string)
password (of type string)
source (of type string, which defaults to "broadcast"): Source for tracks. Should be one of: “broadcast”, “user”, “recommendation” or “unknown”. Since liquidsoap is intented for radio broadcasting, this is the default. Sources other than user don’t need duration to be set.
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
delay (of type float, which defaults to 10.): Submit song when there is only this delay left, in seconds. If remaining time is less than this value, the song will be assumed to be skipped or cuted, and not submitted. Set to zero to disable this behaviour.
force (of type bool, which defaults to false): If remaining time is null, the song will be assumed to be skipped or cuted, and not submitted. Set to zero to disable this behaviour.
(unlabeled) (of type source(audio='b, video='c, midi='d) .{on_metadata : (((([string * string]) -> unit)) -> 'a)})

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`librefm.nowplaying`

Submit metadata to libre.fm using the audioscrobbler protocol (nowplaying mode).

Type:

(user : string, password : string, ?length : bool,
 [string * string]) -> unit

Arguments:

user (of type string)
password (of type string)
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
(unlabeled) (of type [string * string])

`librefm.submit`

Submit metadata to libre.fm using the audioscrobbler protocol.

Type:

(user : string, password : string, ?source : string,
 ?length : bool, [string * string]) -> unit

Arguments:

user (of type string)
password (of type string)
source (of type string, which defaults to "broadcast"): Source for tracks. Should be one of: “broadcast”, “user”, “recommendation” or “unknown”. Since liquidsoap is intented for radio broadcasting, this is the default. Sources other than user don’t need duration to be set.
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
(unlabeled) (of type [string * string])

`librefm.submit.full`

Submit songs to librefm using audioscrobbler, respecting the full protocol: First signal song as now playing when starting, and then submit song when it ends.

Type:

(user : string, password : string, ?source : string,
 ?length : bool, ?delay : float, ?force : bool,
 source(audio='b, video='c, midi='d)
 .{on_metadata : (((([string * string]) -> unit)) -> 'a)
 }) -> source(audio='b, video='c, midi='d)

Arguments:

user (of type string)
password (of type string)
source (of type string, which defaults to "broadcast"): Source for tracks. Should be one of: “broadcast”, “user”, “recommendation” or “unknown”. Since liquidsoap is intented for radio broadcasting, this is the default. Sources other than user don’t need duration to be set.
length (of type bool, which defaults to false): Try to submit length information. This operation can be CPU intensive. Value forced to true when used with the “user” source type.
delay (of type float, which defaults to 10.): Submit song when there is only this delay left, in seconds. If remaining time is less than this value, the song will be assumed to be skipped or cuted, and not submitted. Set to zero to disable this behaviour.
force (of type bool, which defaults to false): If remaining time is null, the song will be assumed to be skipped or cuted, and not submitted. Set to zero to disable this behaviour.
(unlabeled) (of type source(audio='b, video='c, midi='d) .{on_metadata : (((([string * string]) -> unit)) -> 'a)})

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`metadata.float_getter`

Create a float getter from a metadata: this is a float, whose value can be changed with a metadata.

Type:

(float, 'a, 'd
 .{on_metadata : ((((['a * string]) -> unit)) -> 'c)}) ->
() -> float where 'a is an orderable type

Arguments:

(unlabeled) (of type float): Initial value.
(unlabeled) (of type anything that is an orderable type): Metadata on which the value should be updated.
(unlabeled) (of type 'd.{on_metadata : ((((['a * string]) -> unit)) -> 'c)} where 'a is an orderable type): Source containing the metadata.

`metadata.string_getter`

Create a string getter from a metadata: this is a string, whose value can be changed with a metadata.

Type:

(string, 'a, 'd
 .{on_metadata : ((((['a * string]) -> unit)) -> 'c)}) ->
() -> string where 'a is an orderable type

Arguments:

(unlabeled) (of type string): Initial value.
(unlabeled) (of type anything that is an orderable type): Metadata on which the value should be updated.
(unlabeled) (of type 'd.{on_metadata : ((((['a * string]) -> unit)) -> 'c)} where 'a is an orderable type): Source containing the metadata.

Interactive

Liquidsoap

`ffmpeg.filter.abench`

Ffmpeg filter: Benchmark part of a filtergraph.

Type:

(?action : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

action (of type int?, which defaults to null): set action. (default: 0, possible values: 0 (start), 1 (stop))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.abitscope`

Ffmpeg filter: Convert input audio to audio bit scope video output.

Type:

(?rate : string?, ?r : string?, ?size : string?,
 ?s : string?, ?colors : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.video

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
size (of type string?, which defaults to null): set video size. (default: 1024x256)
s (of type string?, which defaults to null): set video size. (default: 1024x256)
colors (of type string?, which defaults to null): set channels colors. (default: red|green|blue|yellow|orange|lime|pink|magenta|brown)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acompressor`

Ffmpeg filter: Audio compressor.

Type:

(?level_in : float?, ?mode : int?, ?threshold : float?,
 ?ratio : float?, ?attack : float?, ?release : float?,
 ?makeup : float?, ?knee : float?, ?link : int?,
 ?detection : int?, ?level_sc : float?, ?mix : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input gain. (default: 1.)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (downward), 1 (upward))
threshold (of type float?, which defaults to null): set threshold. (default: 0.125)
ratio (of type float?, which defaults to null): set ratio. (default: 2.)
attack (of type float?, which defaults to null): set attack. (default: 20.)
release (of type float?, which defaults to null): set release. (default: 250.)
makeup (of type float?, which defaults to null): set make up gain. (default: 1.)
knee (of type float?, which defaults to null): set knee. (default: 2.82843)
link (of type int?, which defaults to null): set link type. (default: 0, possible values: 0 (average), 1 (maximum))
detection (of type int?, which defaults to null): set detection. (default: 1, possible values: 0 (peak), 1 (rms))
level_sc (of type float?, which defaults to null): set sidechain gain. (default: 1.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acontrast`

Ffmpeg filter: Simple audio dynamic range compression/expansion filter.

Type:

(?contrast : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

contrast (of type float?, which defaults to null): set contrast. (default: 33.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acopy`

Ffmpeg filter: Copy the input audio unchanged to the output.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acrossfade`

Ffmpeg filter: Cross fade two input audio streams.

Type:

(?nb_samples : int?, ?ns : int?, ?duration : int?,
 ?d : int?, ?overlap : bool?, ?o : bool?, ?curve1 : int?,
 ?c1 : int?, ?curve2 : int?, ?c2 : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

nb_samples (of type int?, which defaults to null): set number of samples for cross fade duration. (default: 44100)
ns (of type int?, which defaults to null): set number of samples for cross fade duration. (default: 44100)
duration (of type int?, which defaults to null): set cross fade duration. (default: 0)
d (of type int?, which defaults to null): set cross fade duration. (default: 0)
overlap (of type bool?, which defaults to null): overlap 1st stream end with 2nd stream start. (default: true)
o (of type bool?, which defaults to null): overlap 1st stream end with 2nd stream start. (default: true)
curve1 (of type int?, which defaults to null): set fade curve type for 1st stream. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
c1 (of type int?, which defaults to null): set fade curve type for 1st stream. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
curve2 (of type int?, which defaults to null): set fade curve type for 2nd stream. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
c2 (of type int?, which defaults to null): set fade curve type for 2nd stream. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acrossover`

Ffmpeg filter: Split audio into per-bands streams. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?split : string?, ?order : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

split (of type string?, which defaults to null): set split frequencies. (default: 500)
order (of type int?, which defaults to null): set order. (default: 1, possible values: 0 (2nd), 1 (4th), 2 (8th))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acrusher`

Ffmpeg filter: Reduce audio bit resolution.

Type:

(?level_in : float?, ?level_out : float?, ?bits : float?,
 ?mix : float?, ?mode : int?, ?dc : float?, ?aa : float?,
 ?samples : float?, ?lfo : bool?, ?lforange : float?,
 ?lforate : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set level in. (default: 1.)
level_out (of type float?, which defaults to null): set level out. (default: 1.)
bits (of type float?, which defaults to null): set bit reduction. (default: 8.)
mix (of type float?, which defaults to null): set mix. (default: 0.5)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (lin), 1 (log))
dc (of type float?, which defaults to null): set DC. (default: 1.)
aa (of type float?, which defaults to null): set anti-aliasing. (default: 0.5)
samples (of type float?, which defaults to null): set sample reduction. (default: 1.)
lfo (of type bool?, which defaults to null): enable LFO. (default: false)
lforange (of type float?, which defaults to null): set LFO depth. (default: 20.)
lforate (of type float?, which defaults to null): set LFO rate. (default: 0.3)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.acue`

Ffmpeg filter: Delay filtering to match a cue.

Type:

(?cue : int?, ?preroll : int?, ?buffer : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

cue (of type int?, which defaults to null): cue unix timestamp in microseconds. (default: 0)
preroll (of type int?, which defaults to null): preroll duration in seconds. (default: 0)
buffer (of type int?, which defaults to null): buffer duration in seconds. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.adeclick`

Ffmpeg filter: Remove impulsive noise from input audio.

Type:

(?w : float?, ?o : float?, ?a : float?, ?t : float?,
 ?b : float?, ?m : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

w (of type float?, which defaults to null): set window size. (default: 55.)
o (of type float?, which defaults to null): set window overlap. (default: 75.)
a (of type float?, which defaults to null): set autoregression order. (default: 2.)
t (of type float?, which defaults to null): set threshold. (default: 2.)
b (of type float?, which defaults to null): set burst fusion. (default: 2.)
m (of type int?, which defaults to null): set overlap method. (default: 0, possible values: 0 (a), 1 (s))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.adeclip`

Ffmpeg filter: Remove clipping from input audio.

Type:

(?w : float?, ?o : float?, ?a : float?, ?t : float?,
 ?n : int?, ?m : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

w (of type float?, which defaults to null): set window size. (default: 55.)
o (of type float?, which defaults to null): set window overlap. (default: 75.)
a (of type float?, which defaults to null): set autoregression order. (default: 8.)
t (of type float?, which defaults to null): set threshold. (default: 10.)
n (of type int?, which defaults to null): set histogram size. (default: 1000)
m (of type int?, which defaults to null): set overlap method. (default: 0, possible values: 0 (a), 1 (s))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.adelay`

Ffmpeg filter: Delay one or more audio channels.

Type:

(?delays : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

delays (of type string?, which defaults to null): set list of delays for each channel
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aderivative`

Ffmpeg filter: Compute derivative of input audio.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.adrawgraph`

Ffmpeg filter: Draw a graph using input audio metadata.

Type:

(?m1 : string?, ?fg1 : string?, ?m2 : string?,
 ?fg2 : string?, ?m3 : string?, ?fg3 : string?,
 ?m4 : string?, ?fg4 : string?, ?bg : string?,
 ?min : float?, ?max : float?, ?mode : int?,
 ?slide : int?, ?size : string?, ?s : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

m1 (of type string?, which defaults to null): set 1st metadata key. (default: )
fg1 (of type string?, which defaults to null): set 1st foreground color expression. (default: 0xffff0000)
m2 (of type string?, which defaults to null): set 2nd metadata key. (default: )
fg2 (of type string?, which defaults to null): set 2nd foreground color expression. (default: 0xff00ff00)
m3 (of type string?, which defaults to null): set 3rd metadata key. (default: )
fg3 (of type string?, which defaults to null): set 3rd foreground color expression. (default: 0xffff00ff)
m4 (of type string?, which defaults to null): set 4th metadata key. (default: )
fg4 (of type string?, which defaults to null): set 4th foreground color expression. (default: 0xffffff00)
bg (of type string?, which defaults to null): set background color. (default: white)
min (of type float?, which defaults to null): set minimal value. (default: -1.)
max (of type float?, which defaults to null): set maximal value. (default: 1.)
mode (of type int?, which defaults to null): set graph mode. (default: 2, possible values: 0 (bar), 1 (dot), 2 (line))
slide (of type int?, which defaults to null): set slide mode. (default: 0, possible values: 0 (frame), 1 (replace), 2 (scroll), 3 (rscroll), 4 (picture))
size (of type string?, which defaults to null): set graph size. (default: 900x256)
s (of type string?, which defaults to null): set graph size. (default: 900x256)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aecho`

Ffmpeg filter: Add echoing to the audio.

Type:

(?in_gain : float?, ?out_gain : float?,
 ?delays : string?, ?decays : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

in_gain (of type float?, which defaults to null): set signal input gain. (default: 0.6)
out_gain (of type float?, which defaults to null): set signal output gain. (default: 0.3)
delays (of type string?, which defaults to null): set list of signal delays. (default: 1000)
decays (of type string?, which defaults to null): set list of signal decays. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aemphasis`

Ffmpeg filter: Audio emphasis.

Type:

(?level_in : float?, ?level_out : float?, ?mode : int?,
 ?type : int?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input gain. (default: 1.)
level_out (of type float?, which defaults to null): set output gain. (default: 1.)
mode (of type int?, which defaults to null): set filter mode. (default: 0, possible values: 0 (reproduction), 1 (production))
type (of type int?, which defaults to null): set filter type. (default: 4, possible values: 0 (col), 1 (emi), 2 (bsi), 3 (riaa), 4 (cd), 5 (50fm), 6 (75fm), 7 (50kf), 8 (75kf))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aeval`

Ffmpeg filter: Filter audio signal according to a specified expression.

Type:

(?exprs : string?, ?channel_layout : string?,
 ?c : string?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

exprs (of type string?, which defaults to null): set the ‘|’-separated list of channels expressions
channel_layout (of type string?, which defaults to null): set channel layout
c (of type string?, which defaults to null): set channel layout
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aevalsrc`

Ffmpeg filter: Generate an audio signal generated by an expression.

Type:

(?exprs : string?, ?nb_samples : int?, ?n : int?,
 ?sample_rate : string?, ?s : string?, ?duration : int?,
 ?d : int?, ?channel_layout : string?, ?c : string?,
 ffmpeg.filter.graph) -> ffmpeg.filter.audio

Arguments:

exprs (of type string?, which defaults to null): set the ‘|’-separated list of channels expressions
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
sample_rate (of type string?, which defaults to null): set the sample rate. (default: 44100)
s (of type string?, which defaults to null): set the sample rate. (default: 44100)
duration (of type int?, which defaults to null): set audio duration. (default: -1)
d (of type int?, which defaults to null): set audio duration. (default: -1)
channel_layout (of type string?, which defaults to null): set channel layout
c (of type string?, which defaults to null): set channel layout
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.afade`

Ffmpeg filter: Fade in/out input audio.

Type:

(?type : int?, ?t : int?, ?start_sample : int?,
 ?ss : int?, ?nb_samples : int?, ?ns : int?,
 ?start_time : int?, ?st : int?, ?duration : int?,
 ?d : int?, ?curve : int?, ?c : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

type (of type int?, which defaults to null): set the fade direction. (default: 0, possible values: 0 (in), 1 (out))
t (of type int?, which defaults to null): set the fade direction. (default: 0, possible values: 0 (in), 1 (out))
start_sample (of type int?, which defaults to null): set number of first sample to start fading. (default: 0)
ss (of type int?, which defaults to null): set number of first sample to start fading. (default: 0)
nb_samples (of type int?, which defaults to null): set number of samples for fade duration. (default: 44100)
ns (of type int?, which defaults to null): set number of samples for fade duration. (default: 44100)
start_time (of type int?, which defaults to null): set time to start fading. (default: 0)
st (of type int?, which defaults to null): set time to start fading. (default: 0)
duration (of type int?, which defaults to null): set fade duration. (default: 0)
d (of type int?, which defaults to null): set fade duration. (default: 0)
curve (of type int?, which defaults to null): set fade curve type. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
c (of type int?, which defaults to null): set fade curve type. (default: 0, possible values: 0 (tri), 1 (qsin), 2 (esin), 3 (hsin), 4 (log), 5 (ipar), 6 (qua), 7 (cub), 8 (squ), 9 (cbr), 10 (par), 11 (exp), 12 (iqsin), 13 (ihsin), 14 (dese), 15 (desi), 16 (losi), 17 (nofade))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.afftdn`

Ffmpeg filter: Denoise audio samples using FFT.

Type:

(?nr : float?, ?nf : float?, ?nt : int?, ?bn : string?,
 ?rf : float?, ?tn : bool?, ?tr : bool?, ?om : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

nr (of type float?, which defaults to null): set the noise reduction. (default: 12.)
nf (of type float?, which defaults to null): set the noise floor. (default: -50.)
nt (of type int?, which defaults to null): set the noise type. (default: 0, possible values: 0 (w), 1 (v), 2 (s), 3 (c))
bn (of type string?, which defaults to null): set the custom bands noise
rf (of type float?, which defaults to null): set the residual floor. (default: -38.)
tn (of type bool?, which defaults to null): track noise. (default: false)
tr (of type bool?, which defaults to null): track residual. (default: false)
om (of type int?, which defaults to null): set output mode. (default: 1, possible values: 0 (i), 1 (o), 2 (n))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.afftfilt`

Ffmpeg filter: Apply arbitrary expressions to samples in frequency domain.

Type:

(?real : string?, ?imag : string?, ?win_size : int?,
 ?win_func : int?, ?overlap : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

real (of type string?, which defaults to null): set channels real expressions. (default: re)
imag (of type string?, which defaults to null): set channels imaginary expressions. (default: im)
win_size (of type int?, which defaults to null): set window size. (default: 4096)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
overlap (of type float?, which defaults to null): set window overlap. (default: 0.75)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.afifo`

Ffmpeg filter: Buffer input frames and send them when they are requested.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.afir`

Ffmpeg filter: Apply Finite Impulse Response filter with supplied coefficients in 2nd stream. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?dry : float?, ?wet : float?, ?length : float?,
 ?gtype : int?, ?irgain : float?, ?irfmt : int?,
 ?maxir : float?, ?response : bool?, ?channel : int?,
 ?size : string?, ?rate : string?, ?minp : int?,
 ?maxp : int?, ffmpeg.filter.graph, ffmpeg.filter.audio,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

dry (of type float?, which defaults to null): set dry gain. (default: 1.)
wet (of type float?, which defaults to null): set wet gain. (default: 1.)
length (of type float?, which defaults to null): set IR length. (default: 1.)
gtype (of type int?, which defaults to null): set IR auto gain type. (default: 0, possible values: -1 (none), 0 (peak), 1 (dc), 2 (gn))
irgain (of type float?, which defaults to null): set IR gain. (default: 1.)
irfmt (of type int?, which defaults to null): set IR format. (default: 1, possible values: 0 (mono), 1 (input))
maxir (of type float?, which defaults to null): set max IR length. (default: 30.)
response (of type bool?, which defaults to null): show IR frequency response. (default: false)
channel (of type int?, which defaults to null): set IR channel to display frequency response. (default: 0)
size (of type string?, which defaults to null): set video size. (default: hd720)
rate (of type string?, which defaults to null): set video rate. (default: 25)
minp (of type int?, which defaults to null): set min partition size. (default: 8192)
maxp (of type int?, which defaults to null): set max partition size. (default: 8192)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aformat`

Ffmpeg filter: Convert the input audio to one of the specified formats.

Type:

(?sample_fmts : string?, ?sample_rates : string?,
 ?channel_layouts : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

sample_fmts (of type string?, which defaults to null): A ‘|’-separated list of sample formats.
sample_rates (of type string?, which defaults to null): A ‘|’-separated list of sample rates.
channel_layouts (of type string?, which defaults to null): A ‘|’-separated list of channel layouts.
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.agate`

Ffmpeg filter: Audio gate.

Type:

(?level_in : float?, ?mode : int?, ?range : float?,
 ?threshold : float?, ?ratio : float?, ?attack : float?,
 ?release : float?, ?makeup : float?, ?knee : float?,
 ?detection : int?, ?link : int?, ?level_sc : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input level. (default: 1.)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (downward), 1 (upward))
range (of type float?, which defaults to null): set max gain reduction. (default: 0.06125)
threshold (of type float?, which defaults to null): set threshold. (default: 0.125)
ratio (of type float?, which defaults to null): set ratio. (default: 2.)
attack (of type float?, which defaults to null): set attack. (default: 20.)
release (of type float?, which defaults to null): set release. (default: 250.)
makeup (of type float?, which defaults to null): set makeup gain. (default: 1.)
knee (of type float?, which defaults to null): set knee. (default: 2.828427125)
detection (of type int?, which defaults to null): set detection. (default: 1, possible values: 0 (peak), 1 (rms))
link (of type int?, which defaults to null): set link. (default: 0, possible values: 0 (average), 1 (maximum))
level_sc (of type float?, which defaults to null): set sidechain gain. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.agraphmonitor`

Ffmpeg filter: Show various filtergraph stats.

Type:

(?size : string?, ?s : string?, ?opacity : float?,
 ?o : float?, ?mode : int?, ?m : int?, ?flags : int?,
 ?f : int?, ?rate : string?, ?r : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set monitor size. (default: hd720)
s (of type string?, which defaults to null): set monitor size. (default: hd720)
opacity (of type float?, which defaults to null): set video opacity. (default: 0.9)
o (of type float?, which defaults to null): set video opacity. (default: 0.9)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (full), 1 (compact))
m (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (full), 1 (compact))
flags (of type int?, which defaults to null): set flags. (default: 1, possible values: 1 (queue), 4 (frame_count_in), 2 (frame_count_out), 8 (pts), 16 (time), 32 (timebase), 64 (format), 128 (size), 256 (rate))
f (of type int?, which defaults to null): set flags. (default: 1, possible values: 1 (queue), 4 (frame_count_in), 2 (frame_count_out), 8 (pts), 16 (time), 32 (timebase), 64 (format), 128 (size), 256 (rate))
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.ahistogram`

Ffmpeg filter: Convert input audio to histogram video output.

Type:

(?dmode : int?, ?rate : string?, ?r : string?,
 ?size : string?, ?s : string?, ?scale : int?,
 ?ascale : int?, ?acount : int?, ?rheight : float?,
 ?slide : int?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

dmode (of type int?, which defaults to null): set method to display channels. (default: 0, possible values: 0 (single), 1 (separate))
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
size (of type string?, which defaults to null): set video size. (default: hd720)
s (of type string?, which defaults to null): set video size. (default: hd720)
scale (of type int?, which defaults to null): set display scale. (default: 3, possible values: 3 (log), 1 (sqrt), 2 (cbrt), 0 (lin), 4 (rlog))
ascale (of type int?, which defaults to null): set amplitude scale. (default: 1, possible values: 1 (log), 0 (lin))
acount (of type int?, which defaults to null): how much frames to accumulate. (default: 1)
rheight (of type float?, which defaults to null): set histogram ratio of window height. (default: 0.1)
slide (of type int?, which defaults to null): set sonogram sliding. (default: 0, possible values: 0 (replace), 1 (scroll))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aiir`

Ffmpeg filter: Apply Infinite Impulse Response filter with supplied coefficients. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?z : string?, ?p : string?, ?k : string?, ?dry : float?,
 ?wet : float?, ?f : int?, ?r : int?, ?e : int?,
 ?mix : float?, ?response : bool?, ?channel : int?,
 ?size : string?, ?rate : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

z (of type string?, which defaults to null): set B/numerator/zeros coefficients. (default: 1+0i 1-0i)
p (of type string?, which defaults to null): set A/denominator/poles coefficients. (default: 1+0i 1-0i)
k (of type string?, which defaults to null): set channels gains. (default: 1|1)
dry (of type float?, which defaults to null): set dry gain. (default: 1.)
wet (of type float?, which defaults to null): set wet gain. (default: 1.)
f (of type int?, which defaults to null): set coefficients format. (default: 1, possible values: 0 (tf), 1 (zp), 2 (pr), 3 (pd))
r (of type int?, which defaults to null): set kind of processing. (default: 1, possible values: 0 (d), 1 (s))
e (of type int?, which defaults to null): set precision. (default: 0, possible values: 0 (dbl), 1 (flt), 2 (i32), 3 (i16))
mix (of type float?, which defaults to null): set mix. (default: 1.)
response (of type bool?, which defaults to null): show IR frequency response. (default: false)
channel (of type int?, which defaults to null): set IR channel to display frequency response. (default: 0)
size (of type string?, which defaults to null): set video size. (default: hd720)
rate (of type string?, which defaults to null): set video rate. (default: 25)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aintegral`

Ffmpeg filter: Compute integral of input audio.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.ainterleave`

Ffmpeg filter: Temporally interleave audio inputs. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?nb_inputs : int?, ?n : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.audio

Arguments:

nb_inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
n (of type int?, which defaults to null): set number of inputs. (default: 2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.alimiter`

Ffmpeg filter: Audio lookahead limiter.

Type:

(?level_in : float?, ?level_out : float?,
 ?limit : float?, ?attack : float?, ?release : float?,
 ?asc : bool?, ?asc_level : float?, ?level : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input level. (default: 1.)
level_out (of type float?, which defaults to null): set output level. (default: 1.)
limit (of type float?, which defaults to null): set limit. (default: 1.)
attack (of type float?, which defaults to null): set attack. (default: 5.)
release (of type float?, which defaults to null): set release. (default: 50.)
asc (of type bool?, which defaults to null): enable asc. (default: false)
asc_level (of type float?, which defaults to null): set asc level. (default: 0.5)
level (of type bool?, which defaults to null): auto level. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.allpass`

Ffmpeg filter: Apply a two-pole all-pass filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?mix : float?,
 ?m : float?, ?channels : string?, ?c : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 3000.)
f (of type float?, which defaults to null): set central frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 1, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 1, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set filter-width. (default: 707.1)
w (of type float?, which defaults to null): set filter-width. (default: 707.1)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.allrgb`

Ffmpeg filter: Generate all RGB colors.

Type:

(?rate : string?, ?r : string?, ?duration : int?,
 ?d : int?, ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.allyuv`

Ffmpeg filter: Generate all yuv colors.

Type:

(?rate : string?, ?r : string?, ?duration : int?,
 ?d : int?, ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.aloop`

Ffmpeg filter: Loop audio samples.

Type:

(?loop : int?, ?size : int?, ?start : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

loop (of type int?, which defaults to null): number of loops. (default: 0)
size (of type int?, which defaults to null): max number of samples to loop. (default: 0)
start (of type int?, which defaults to null): set the loop start sample. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.alphaextract`

Ffmpeg filter: Extract an alpha channel as a grayscale image component. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.alphamerge`

Ffmpeg filter: Copy the luma value of the second input into the alpha channel of the first input.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.amerge`

Ffmpeg filter: Merge two or more audio streams into a single multi-channel stream. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.audio

Arguments:

inputs (of type int?, which defaults to null): specify the number of inputs. (default: 2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.ametadata`

Ffmpeg filter: Manipulate audio frame metadata.

Type:

(?mode : int?, ?key : string?, ?value : string?,
 ?function : int?, ?expr : string?, ?file : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

mode (of type int?, which defaults to null): set a mode of operation. (default: 0, possible values: 0 (select), 1 (add), 2 (modify), 3 (delete), 4 (print))
key (of type string?, which defaults to null): set metadata key
value (of type string?, which defaults to null): set metadata value
function (of type int?, which defaults to null): function for comparing values. (default: 0, possible values: 0 (same_str), 1 (starts_with), 2 (less), 3 (equal), 4 (greater), 5 (expr))
expr (of type string?, which defaults to null): set expression for expr function
file (of type string?, which defaults to null): set file where to print metadata information
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.amix`

Ffmpeg filter: Audio mixing. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?duration : int?,
 ?dropout_transition : float?, ?weights : string?,
 ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) -> ffmpeg.filter.audio

Arguments:

inputs (of type int?, which defaults to null): Number of inputs.. (default: 2)
duration (of type int?, which defaults to null): How to determine the end-of-stream.. (default: 0, possible values: 0 (longest), 1 (shortest), 2 (first))
dropout_transition (of type float?, which defaults to null): Transition time, in seconds, for volume renormalization when an input stream ends.. (default: 2.)
weights (of type string?, which defaults to null): Set weight for each input.. (default: 1 1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.amovie`

Ffmpeg filter: Read audio from a movie source. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?filename : string?, ?format_name : string?,
 ?f : string?, ?stream_index : int?, ?si : int?,
 ?seek_point : float?, ?sp : float?, ?streams : string?,
 ?s : string?, ?loop : int?, ?discontinuity : int?,
 ffmpeg.filter.graph) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

filename (of type string?, which defaults to null)
format_name (of type string?, which defaults to null): set format name
f (of type string?, which defaults to null): set format name
stream_index (of type int?, which defaults to null): set stream index. (default: -1)
si (of type int?, which defaults to null): set stream index. (default: -1)
seek_point (of type float?, which defaults to null): set seekpoint (seconds). (default: 0.)
sp (of type float?, which defaults to null): set seekpoint (seconds). (default: 0.)
streams (of type string?, which defaults to null): set streams
s (of type string?, which defaults to null): set streams
loop (of type int?, which defaults to null): set loop count. (default: 1)
discontinuity (of type int?, which defaults to null): set discontinuity threshold. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.amplify`

Ffmpeg filter: Amplify changes between successive video frames.

Type:

(?radius : int?, ?factor : float?, ?threshold : float?,
 ?tolerance : float?, ?low : int?, ?high : int?,
 ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

radius (of type int?, which defaults to null): set radius. (default: 2)
factor (of type float?, which defaults to null): set factor. (default: 2.)
threshold (of type float?, which defaults to null): set threshold. (default: 10.)
tolerance (of type float?, which defaults to null): set tolerance. (default: 0.)
low (of type int?, which defaults to null): set low limit for amplification. (default: 65535)
high (of type int?, which defaults to null): set high limit for amplification. (default: 65535)
planes (of type int?, which defaults to null): set what planes to filter. (default: 7)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.amultiply`

Ffmpeg filter: Multiply two audio streams.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.anequalizer`

Ffmpeg filter: Apply high-order audio parametric multi band equalizer. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?params : string?, ?curves : bool?, ?size : string?,
 ?mgain : float?, ?fscale : int?, ?colors : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

params (of type string?, which defaults to null): Default:
curves (of type bool?, which defaults to null): draw frequency response curves. (default: false)
size (of type string?, which defaults to null): set video size. (default: hd720)
mgain (of type float?, which defaults to null): set max gain. (default: 60.)
fscale (of type int?, which defaults to null): set frequency scale. (default: 1, possible values: 0 (lin), 1 (log))
colors (of type string?, which defaults to null): set channels curves colors. (default: red|green|blue|yellow|orange|lime|pink|magenta|brown)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.anlmdn`

Ffmpeg filter: Reduce broadband noise from stream using Non-Local Means.

Type:

(?s : float?, ?p : int?, ?r : int?, ?o : int?,
 ?m : float?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

s (of type float?, which defaults to null): set denoising strength. (default: 1e-05)
p (of type int?, which defaults to null): set patch duration. (default: 2000)
r (of type int?, which defaults to null): set research duration. (default: 6000)
o (of type int?, which defaults to null): set output mode. (default: 1, possible values: 0 (i), 1 (o), 2 (n))
m (of type float?, which defaults to null): set smooth factor. (default: 11.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.anoisesrc`

Ffmpeg filter: Generate a noise audio signal.

Type:

(?sample_rate : int?, ?r : int?, ?amplitude : float?,
 ?a : float?, ?duration : int?, ?d : int?, ?color : int?,
 ?colour : int?, ?c : int?, ?seed : int?, ?s : int?,
 ?nb_samples : int?, ?n : int?, ffmpeg.filter.graph) ->
ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): set sample rate. (default: 48000)
r (of type int?, which defaults to null): set sample rate. (default: 48000)
amplitude (of type float?, which defaults to null): set amplitude. (default: 1.)
a (of type float?, which defaults to null): set amplitude. (default: 1.)
duration (of type int?, which defaults to null): set duration. (default: 0)
d (of type int?, which defaults to null): set duration. (default: 0)
color (of type int?, which defaults to null): set noise color. (default: 0, possible values: 0 (white), 1 (pink), 2 (brown), 3 (blue), 4 (violet))
colour (of type int?, which defaults to null): set noise color. (default: 0, possible values: 0 (white), 1 (pink), 2 (brown), 3 (blue), 4 (violet))
c (of type int?, which defaults to null): set noise color. (default: 0, possible values: 0 (white), 1 (pink), 2 (brown), 3 (blue), 4 (violet))
seed (of type int?, which defaults to null): set random seed. (default: -1)
s (of type int?, which defaults to null): set random seed. (default: -1)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.anull`

Ffmpeg filter: Pass the source unchanged to the output.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.anullsink`

Ffmpeg filter: Do absolutely nothing with the input audio.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) -> unit

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.anullsrc`

Ffmpeg filter: Null audio source, return empty audio frames.

Type:

(?channel_layout : string?, ?cl : string?,
 ?sample_rate : string?, ?r : string?,
 ?nb_samples : int?, ?n : int?, ffmpeg.filter.graph) ->
ffmpeg.filter.audio

Arguments:

channel_layout (of type string?, which defaults to null): set channel_layout. (default: stereo)
cl (of type string?, which defaults to null): set channel_layout. (default: stereo)
sample_rate (of type string?, which defaults to null): set sample rate. (default: 44100)
r (of type string?, which defaults to null): set sample rate. (default: 44100)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.apad`

Ffmpeg filter: Pad audio with silence.

Type:

(?packet_size : int?, ?pad_len : int?, ?whole_len : int?,
 ?pad_dur : int?, ?whole_dur : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

packet_size (of type int?, which defaults to null): set silence packet size. (default: 4096)
pad_len (of type int?, which defaults to null): set number of samples of silence to add. (default: -1)
whole_len (of type int?, which defaults to null): set minimum target number of samples in the audio stream. (default: -1)
pad_dur (of type int?, which defaults to null): set duration of silence to add. (default: 0)
whole_dur (of type int?, which defaults to null): set minimum target duration in the audio stream. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aperms`

Ffmpeg filter: Set permissions for the output audio frame.

Type:

(?mode : int?, ?seed : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

mode (of type int?, which defaults to null): select permissions mode. (default: 0, possible values: 0 (none), 1 (ro), 2 (rw), 3 (toggle), 4 (random))
seed (of type int?, which defaults to null): set the seed for the random mode. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aphasemeter`

Ffmpeg filter: Convert input audio to phase meter video output. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?rate : string?, ?r : string?, ?size : string?,
 ?s : string?, ?rc : int?, ?gc : int?, ?bc : int?,
 ?mpc : string?, ?video : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
size (of type string?, which defaults to null): set video size. (default: 800x400)
s (of type string?, which defaults to null): set video size. (default: 800x400)
rc (of type int?, which defaults to null): set red contrast. (default: 2)
gc (of type int?, which defaults to null): set green contrast. (default: 7)
bc (of type int?, which defaults to null): set blue contrast. (default: 1)
mpc (of type string?, which defaults to null): set median phase color. (default: none)
video (of type bool?, which defaults to null): set video output. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aphaser`

Ffmpeg filter: Add a phasing effect to the audio.

Type:

(?in_gain : float?, ?out_gain : float?, ?delay : float?,
 ?decay : float?, ?speed : float?, ?type : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

in_gain (of type float?, which defaults to null): set input gain. (default: 0.4)
out_gain (of type float?, which defaults to null): set output gain. (default: 0.74)
delay (of type float?, which defaults to null): set delay in milliseconds. (default: 3.)
decay (of type float?, which defaults to null): set decay. (default: 0.4)
speed (of type float?, which defaults to null): set modulation speed. (default: 0.5)
type (of type int?, which defaults to null): set modulation type. (default: 1, possible values: 1 (triangular), 1 (t), 0 (sinusoidal), 0 (s))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.apulsator`

Ffmpeg filter: Audio pulsator.

Type:

(?level_in : float?, ?level_out : float?, ?mode : int?,
 ?amount : float?, ?offset_l : float?,
 ?offset_r : float?, ?width : float?, ?timing : int?,
 ?bpm : float?, ?ms : int?, ?hz : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input gain. (default: 1.)
level_out (of type float?, which defaults to null): set output gain. (default: 1.)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (sine), 1 (triangle), 2 (square), 3 (sawup), 4 (sawdown))
amount (of type float?, which defaults to null): set modulation. (default: 1.)
offset_l (of type float?, which defaults to null): set offset L. (default: 0.)
offset_r (of type float?, which defaults to null): set offset R. (default: 0.5)
width (of type float?, which defaults to null): set pulse width. (default: 1.)
timing (of type int?, which defaults to null): set timing. (default: 2, possible values: 0 (bpm), 1 (ms), 2 (hz))
bpm (of type float?, which defaults to null): set BPM. (default: 120.)
ms (of type int?, which defaults to null): set ms. (default: 500)
hz (of type float?, which defaults to null): set frequency. (default: 2.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.arealtime`

Ffmpeg filter: Slow down filtering to match realtime.

Type:

(?limit : int?, ?speed : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

limit (of type int?, which defaults to null): sleep time limit. (default: 2000000)
speed (of type float?, which defaults to null): speed factor. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aresample`

Ffmpeg filter: Resample audio data.

Type:

(?sample_rate : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): Default: 0
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.areverse`

Ffmpeg filter: Reverse an audio clip.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.aselect`

Ffmpeg filter: Select audio frames to pass in output. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?expr : string?, ?e : string?, ?outputs : int?,
 ?n : int?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

expr (of type string?, which defaults to null): set an expression to use for selecting frames. (default: 1)
e (of type string?, which defaults to null): set an expression to use for selecting frames. (default: 1)
outputs (of type int?, which defaults to null): set the number of outputs. (default: 1)
n (of type int?, which defaults to null): set the number of outputs. (default: 1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asendcmd`

Ffmpeg filter: Send commands to filters.

Type:

(?commands : string?, ?c : string?, ?filename : string?,
 ?f : string?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

commands (of type string?, which defaults to null): set commands
c (of type string?, which defaults to null): set commands
filename (of type string?, which defaults to null): set commands file
f (of type string?, which defaults to null): set commands file
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asetnsamples`

Ffmpeg filter: Set the number of samples for each output audio frames.

Type:

(?nb_out_samples : int?, ?n : int?, ?pad : bool?,
 ?p : bool?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

nb_out_samples (of type int?, which defaults to null): set the number of per-frame output samples. (default: 1024)
n (of type int?, which defaults to null): set the number of per-frame output samples. (default: 1024)
pad (of type bool?, which defaults to null): pad last frame with zeros. (default: true)
p (of type bool?, which defaults to null): pad last frame with zeros. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asetpts`

Ffmpeg filter: Set PTS for the output audio frame.

Type:

(?expr : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

expr (of type string?, which defaults to null): Expression determining the frame timestamp. (default: PTS)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asetrate`

Ffmpeg filter: Change the sample rate without altering the data.

Type:

(?sample_rate : int?, ?r : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): set the sample rate. (default: 44100)
r (of type int?, which defaults to null): set the sample rate. (default: 44100)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asettb`

Ffmpeg filter: Set timebase for the audio output link.

Type:

(?expr : string?, ?tb : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

expr (of type string?, which defaults to null): set expression determining the output timebase. (default: intb)
tb (of type string?, which defaults to null): set expression determining the output timebase. (default: intb)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.ashowinfo`

Ffmpeg filter: Show textual information for each audio frame.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asidedata`

Ffmpeg filter: Manipulate audio frame side data.

Type:

(?mode : int?, ?type : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

mode (of type int?, which defaults to null): set a mode of operation. (default: 0, possible values: 0 (select), 1 (delete))
type (of type int?, which defaults to null): set side data type. (default: -1, possible values: 0 (PANSCAN), 1 (A53_CC), 2 (STEREO3D), 3 (MATRIXENCODING), 4 (DOWNMIX_INFO), 5 (REPLAYGAIN), 6 (DISPLAYMATRIX), 7 (AFD), 8 (MOTION_VECTORS), 9 (SKIP_SAMPLES), 10 (AUDIO_SERVICE_TYPE), 11 (MASTERING_DISPLAY_METADATA), 12 (GOP_TIMECODE), 13 (SPHERICAL), 14 (CONTENT_LIGHT_LEVEL), 15 (ICC_PROFILE), 16 (QP_TABLE_PROPERTIES), 17 (QP_TABLE_DATA), 18 (S12M_TIMECOD), 19 (DYNAMIC_HDR_PLUS), 20 (REGIONS_OF_INTEREST))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asoftclip`

Ffmpeg filter: Audio Soft Clipper.

Type:

(?type : int?, ?param : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

type (of type int?, which defaults to null): set softclip type. (default: 0, possible values: 0 (tanh), 1 (atan), 2 (cubic), 3 (exp), 4 (alg), 5 (quintic), 6 (sin))
param (of type float?, which defaults to null): set softclip parameter. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.asplit`

Ffmpeg filter: Pass on the audio input to N audio outputs. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?outputs : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

outputs (of type int?, which defaults to null): set number of outputs. (default: 2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.ass`

Ffmpeg filter: Render ASS subtitles onto input video using the libass library.

Type:

(?filename : string?, ?f : string?,
 ?original_size : string?, ?fontsdir : string?,
 ?alpha : bool?, ?shaping : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

filename (of type string?, which defaults to null): set the filename of file to read
f (of type string?, which defaults to null): set the filename of file to read
original_size (of type string?, which defaults to null): set the size of the original video (used to scale fonts)
fontsdir (of type string?, which defaults to null): set the directory containing the fonts to read
alpha (of type bool?, which defaults to null): enable processing of alpha channel. (default: false)
shaping (of type int?, which defaults to null): set shaping engine. (default: -1, possible values: -1 (auto), 0 (simple), 1 (complex))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.astats`

Ffmpeg filter: Show time domain statistics about audio frames.

Type:

(?length : float?, ?metadata : bool?, ?reset : int?,
 ?measure_perchannel : int?, ?measure_overall : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

length (of type float?, which defaults to null): set the window length. (default: 0.05)
metadata (of type bool?, which defaults to null): inject metadata in the filtergraph. (default: false)
reset (of type int?, which defaults to null): recalculate stats after this many frames. (default: 0)
measure_perchannel (of type int?, which defaults to null): only measure_perchannel these per-channel statistics. (default: 4294967295, possible values: 0 (none), 4294967295 (all), 1 (DC_offset), 2 (Min_level), 4 (Max_level), 8 (Min_difference), 16 (Max_difference), 32 (Mean_difference), 64 (RMS_difference), 128 (Peak_level), 256 (RMS_level), 512 (RMS_peak), 1024 (RMS_trough), 2048 (Crest_factor), 4096 (Flat_factor), 8192 (Peak_count), 16384 (Bit_depth), 32768 (Dynamic_range), 65536 (Zero_crossings), 131072 (Zero_crossings_rate), 262144 (Number_of_samples), 524288 (Number_of_NaNs), 1048576 (Number_of_Infs), 2097152 (Number_of_denormals))
measure_overall (of type int?, which defaults to null): only measure_perchannel these overall statistics. (default: 4294967295, possible values: 0 (none), 4294967295 (all), 1 (DC_offset), 2 (Min_level), 4 (Max_level), 8 (Min_difference), 16 (Max_difference), 32 (Mean_difference), 64 (RMS_difference), 128 (Peak_level), 256 (RMS_level), 512 (RMS_peak), 1024 (RMS_trough), 2048 (Crest_factor), 4096 (Flat_factor), 8192 (Peak_count), 16384 (Bit_depth), 32768 (Dynamic_range), 65536 (Zero_crossings), 131072 (Zero_crossings_rate), 262144 (Number_of_samples), 524288 (Number_of_NaNs), 1048576 (Number_of_Infs), 2097152 (Number_of_denormals))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.astreamselect`

Ffmpeg filter: Select audio streams This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?inputs : int?, ?map : string?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

inputs (of type int?, which defaults to null): number of input streams. (default: 2)
map (of type string?, which defaults to null): input indexes to remap to outputs
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.atadenoise`

Ffmpeg filter: Apply an Adaptive Temporal Averaging Denoiser.

Type:

(?0a : float?, ?0b : float?, ?1a : float?, ?1b : float?,
 ?2a : float?, ?2b : float?, ?s : int?, ?p : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

0a (of type float?, which defaults to null): set threshold A for 1st plane. (default: 0.02)
0b (of type float?, which defaults to null): set threshold B for 1st plane. (default: 0.04)
1a (of type float?, which defaults to null): set threshold A for 2nd plane. (default: 0.02)
1b (of type float?, which defaults to null): set threshold B for 2nd plane. (default: 0.04)
2a (of type float?, which defaults to null): set threshold A for 3rd plane. (default: 0.02)
2b (of type float?, which defaults to null): set threshold B for 3rd plane. (default: 0.04)
s (of type int?, which defaults to null): set how many frames to use. (default: 9)
p (of type int?, which defaults to null): set what planes to filter. (default: 7)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.atempo`

Ffmpeg filter: Adjust audio tempo.

Type:

(?tempo : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

tempo (of type float?, which defaults to null): set tempo scale factor. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.atrim`

Ffmpeg filter: Pick one continuous section from the input, drop the rest.

Type:

(?start : int?, ?starti : int?, ?end : int?,
 ?endi : int?, ?start_pts : int?, ?end_pts : int?,
 ?duration : int?, ?durationi : int?,
 ?start_sample : int?, ?end_sample : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

start (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: 9223372036854775807)
starti (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: 9223372036854775807)
end (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: 9223372036854775807)
endi (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: 9223372036854775807)
start_pts (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: -9223372036854775808)
end_pts (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: -9223372036854775808)
duration (of type int?, which defaults to null): Maximum duration of the output. (default: 0)
durationi (of type int?, which defaults to null): Maximum duration of the output. (default: 0)
start_sample (of type int?, which defaults to null): Number of the first audio sample that should be passed to the output. (default: -1)
end_sample (of type int?, which defaults to null): Number of the first audio sample that should be dropped again. (default: 9223372036854775807)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.avectorscope`

Ffmpeg filter: Convert input audio to vectorscope video output.

Type:

(?mode : int?, ?m : int?, ?rate : string?, ?r : string?,
 ?size : string?, ?s : string?, ?rc : int?, ?gc : int?,
 ?bc : int?, ?ac : int?, ?rf : int?, ?gf : int?,
 ?bf : int?, ?af : int?, ?zoom : float?, ?draw : int?,
 ?scale : int?, ?swap : bool?, ?mirror : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (lissajous), 1 (lissajous_xy), 2 (polar))
m (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (lissajous), 1 (lissajous_xy), 2 (polar))
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
size (of type string?, which defaults to null): set video size. (default: 400x400)
s (of type string?, which defaults to null): set video size. (default: 400x400)
rc (of type int?, which defaults to null): set red contrast. (default: 40)
gc (of type int?, which defaults to null): set green contrast. (default: 160)
bc (of type int?, which defaults to null): set blue contrast. (default: 80)
ac (of type int?, which defaults to null): set alpha contrast. (default: 255)
rf (of type int?, which defaults to null): set red fade. (default: 15)
gf (of type int?, which defaults to null): set green fade. (default: 10)
bf (of type int?, which defaults to null): set blue fade. (default: 5)
af (of type int?, which defaults to null): set alpha fade. (default: 5)
zoom (of type float?, which defaults to null): set zoom factor. (default: 1.)
draw (of type int?, which defaults to null): set draw mode. (default: 0, possible values: 0 (dot), 1 (line))
scale (of type int?, which defaults to null): set amplitude scale mode. (default: 0, possible values: 0 (lin), 1 (sqrt), 2 (cbrt), 3 (log))
swap (of type bool?, which defaults to null): swap x axis with y axis. (default: true)
mirror (of type int?, which defaults to null): mirror axis. (default: 0, possible values: 0 (none), 1 (x), 2 (y), 3 (xy))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.avgblur`

Ffmpeg filter: Apply Average Blur filter.

Type:

(?sizeX : int?, ?planes : int?, ?sizeY : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

sizeX (of type int?, which defaults to null): set horizontal size. (default: 1)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
sizeY (of type int?, which defaults to null): set vertical size. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.avgblur_opencl`

Ffmpeg filter: Apply average blur filter

Type:

(?sizeX : int?, ?planes : int?, ?sizeY : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

sizeX (of type int?, which defaults to null): set horizontal size. (default: 1)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
sizeY (of type int?, which defaults to null): set vertical size. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.azmq`

Ffmpeg filter: Receive commands through ZMQ and broker them to filters.

Type:

(?bind_address : string?, ?b : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

bind_address (of type string?, which defaults to null): set bind address. (default: tcp://*:5555)
b (of type string?, which defaults to null): set bind address. (default: tcp://*:5555)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bandpass`

Ffmpeg filter: Apply a two-pole Butterworth band-pass filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?csg : bool?,
 ?mix : float?, ?m : float?, ?channels : string?,
 ?c : string?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 3000.)
f (of type float?, which defaults to null): set central frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set band-width. (default: 0.5)
w (of type float?, which defaults to null): set band-width. (default: 0.5)
csg (of type bool?, which defaults to null): use constant skirt gain. (default: false)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bandreject`

Ffmpeg filter: Apply a two-pole Butterworth band-reject filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?mix : float?,
 ?m : float?, ?channels : string?, ?c : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 3000.)
f (of type float?, which defaults to null): set central frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set band-width. (default: 0.5)
w (of type float?, which defaults to null): set band-width. (default: 0.5)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bass`

Ffmpeg filter: Boost or cut lower frequencies.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?gain : float?,
 ?g : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 100.)
f (of type float?, which defaults to null): set central frequency. (default: 100.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
w (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
gain (of type float?, which defaults to null): set gain. (default: 0.)
g (of type float?, which defaults to null): set gain. (default: 0.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bbox`

Ffmpeg filter: Compute bounding box for each frame.

Type:

(?min_val : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

min_val (of type int?, which defaults to null): set minimum luminance value for bounding box. (default: 16)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.bench`

Ffmpeg filter: Benchmark part of a filtergraph.

Type:

(?action : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

action (of type int?, which defaults to null): set action. (default: 0, possible values: 0 (start), 1 (stop))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.biquad`

Ffmpeg filter: Apply a biquad IIR filter with the given coefficients.

Type:

(?a0 : float?, ?a1 : float?, ?a2 : float?, ?b0 : float?,
 ?b1 : float?, ?b2 : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

a0 (of type float?, which defaults to null): Default: 1.
a1 (of type float?, which defaults to null): Default: 0.
a2 (of type float?, which defaults to null): Default: 0.
b0 (of type float?, which defaults to null): Default: 0.
b1 (of type float?, which defaults to null): Default: 0.
b2 (of type float?, which defaults to null): Default: 0.
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bitplanenoise`

Ffmpeg filter: Measure bit plane noise.

Type:

(?bitplane : int?, ?filter : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

bitplane (of type int?, which defaults to null): set bit plane to use for measuring noise. (default: 1)
filter (of type bool?, which defaults to null): show noisy pixels. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.blackdetect`

Ffmpeg filter: Detect video intervals that are (almost) black.

Type:

(?d : float?, ?black_min_duration : float?,
 ?picture_black_ratio_th : float?, ?pic_th : float?,
 ?pixel_black_th : float?, ?pix_th : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

d (of type float?, which defaults to null): set minimum detected black duration in seconds. (default: 2.)
black_min_duration (of type float?, which defaults to null): set minimum detected black duration in seconds. (default: 2.)
picture_black_ratio_th (of type float?, which defaults to null): set the picture black ratio threshold. (default: 0.98)
pic_th (of type float?, which defaults to null): set the picture black ratio threshold. (default: 0.98)
pixel_black_th (of type float?, which defaults to null): set the pixel black threshold. (default: 0.1)
pix_th (of type float?, which defaults to null): set the pixel black threshold. (default: 0.1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.blackframe`

Ffmpeg filter: Detect frames that are (almost) black.

Type:

(?amount : int?, ?threshold : int?, ?thresh : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

amount (of type int?, which defaults to null): percentage of the pixels that have to be below the threshold for the frame to be considered black. (default: 98)
threshold (of type int?, which defaults to null): threshold below which a pixel value is considered black. (default: 32)
thresh (of type int?, which defaults to null): threshold below which a pixel value is considered black. (default: 32)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.blend`

Ffmpeg filter: Blend two video frames into each other.

Type:

(?c0_mode : int?, ?c1_mode : int?, ?c2_mode : int?,
 ?c3_mode : int?, ?all_mode : int?, ?c0_expr : string?,
 ?c1_expr : string?, ?c2_expr : string?,
 ?c3_expr : string?, ?all_expr : string?,
 ?c0_opacity : float?, ?c1_opacity : float?,
 ?c2_opacity : float?, ?c3_opacity : float?,
 ?all_opacity : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0_mode (of type int?, which defaults to null): set component #0 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c1_mode (of type int?, which defaults to null): set component #1 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c2_mode (of type int?, which defaults to null): set component #2 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c3_mode (of type int?, which defaults to null): set component #3 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
all_mode (of type int?, which defaults to null): set blend mode for all components. (default: -1, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c0_expr (of type string?, which defaults to null): set color component #0 expression
c1_expr (of type string?, which defaults to null): set color component #1 expression
c2_expr (of type string?, which defaults to null): set color component #2 expression
c3_expr (of type string?, which defaults to null): set color component #3 expression
all_expr (of type string?, which defaults to null): set expression for all color components
c0_opacity (of type float?, which defaults to null): set color component #0 opacity. (default: 1.)
c1_opacity (of type float?, which defaults to null): set color component #1 opacity. (default: 1.)
c2_opacity (of type float?, which defaults to null): set color component #2 opacity. (default: 1.)
c3_opacity (of type float?, which defaults to null): set color component #3 opacity. (default: 1.)
all_opacity (of type float?, which defaults to null): set opacity for all color components. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.bm3d`

Ffmpeg filter: Block-Matching 3D denoiser. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?sigma : float?, ?block : int?, ?bstep : int?,
 ?group : int?, ?range : int?, ?mstep : int?,
 ?thmse : float?, ?hdthr : float?, ?estim : int?,
 ?ref : int?, ?planes : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

sigma (of type float?, which defaults to null): set denoising strength. (default: 1.)
block (of type int?, which defaults to null): set log2(size) of local patch. (default: 4)
bstep (of type int?, which defaults to null): set sliding step for processing blocks. (default: 4)
group (of type int?, which defaults to null): set maximal number of similar blocks. (default: 1)
range (of type int?, which defaults to null): set block matching range. (default: 9)
mstep (of type int?, which defaults to null): set step for block matching. (default: 1)
thmse (of type float?, which defaults to null): set threshold of mean square error for block matching. (default: 0.)
hdthr (of type float?, which defaults to null): set hard threshold for 3D transfer domain. (default: 2.7)
estim (of type int?, which defaults to null): set filtering estimation mode. (default: 0, possible values: 0 (basic), 1 (final))
ref (of type int?, which defaults to null): have reference stream. (default: 0)
planes (of type int?, which defaults to null): set planes to filter. (default: 7)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.boxblur`

Ffmpeg filter: Blur the input.

Type:

(?luma_radius : string?, ?lr : string?,
 ?luma_power : int?, ?lp : int?,
 ?chroma_radius : string?, ?cr : string?,
 ?chroma_power : int?, ?cp : int?,
 ?alpha_radius : string?, ?ar : string?,
 ?alpha_power : int?, ?ap : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

luma_radius (of type string?, which defaults to null): Radius of the luma blurring box. (default: 2)
lr (of type string?, which defaults to null): Radius of the luma blurring box. (default: 2)
luma_power (of type int?, which defaults to null): How many times should the boxblur be applied to luma. (default: 2)
lp (of type int?, which defaults to null): How many times should the boxblur be applied to luma. (default: 2)
chroma_radius (of type string?, which defaults to null): Radius of the chroma blurring box
cr (of type string?, which defaults to null): Radius of the chroma blurring box
chroma_power (of type int?, which defaults to null): How many times should the boxblur be applied to chroma. (default: -1)
cp (of type int?, which defaults to null): How many times should the boxblur be applied to chroma. (default: -1)
alpha_radius (of type string?, which defaults to null): Radius of the alpha blurring box
ar (of type string?, which defaults to null): Radius of the alpha blurring box
alpha_power (of type int?, which defaults to null): How many times should the boxblur be applied to alpha. (default: -1)
ap (of type int?, which defaults to null): How many times should the boxblur be applied to alpha. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.boxblur_opencl`

Ffmpeg filter: Apply boxblur filter to input video

Type:

(?luma_radius : string?, ?lr : string?,
 ?luma_power : int?, ?lp : int?,
 ?chroma_radius : string?, ?cr : string?,
 ?chroma_power : int?, ?cp : int?,
 ?alpha_radius : string?, ?ar : string?,
 ?alpha_power : int?, ?ap : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

luma_radius (of type string?, which defaults to null): Radius of the luma blurring box. (default: 2)
lr (of type string?, which defaults to null): Radius of the luma blurring box. (default: 2)
luma_power (of type int?, which defaults to null): How many times should the boxblur be applied to luma. (default: 2)
lp (of type int?, which defaults to null): How many times should the boxblur be applied to luma. (default: 2)
chroma_radius (of type string?, which defaults to null): Radius of the chroma blurring box
cr (of type string?, which defaults to null): Radius of the chroma blurring box
chroma_power (of type int?, which defaults to null): How many times should the boxblur be applied to chroma. (default: -1)
cp (of type int?, which defaults to null): How many times should the boxblur be applied to chroma. (default: -1)
alpha_radius (of type string?, which defaults to null): Radius of the alpha blurring box
ar (of type string?, which defaults to null): Radius of the alpha blurring box
alpha_power (of type int?, which defaults to null): How many times should the boxblur be applied to alpha. (default: -1)
ap (of type int?, which defaults to null): How many times should the boxblur be applied to alpha. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.bs2b`

Ffmpeg filter: Bauer stereo-to-binaural filter.

Type:

(?profile : int?, ?fcut : int?, ?feed : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

profile (of type int?, which defaults to null): Apply a pre-defined crossfeed level. (default: 2949820, possible values: 2949820 (default), 3932860 (cmoy), 6226570 (jmeier))
fcut (of type int?, which defaults to null): Set cut frequency (in Hz). (default: 0)
feed (of type int?, which defaults to null): Set feed level (in Hz). (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.bwdif`

Ffmpeg filter: Deinterlace the input image.

Type:

(?mode : int?, ?parity : int?, ?deint : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): specify the interlacing mode. (default: 1, possible values: 0 (send_frame), 1 (send_field))
parity (of type int?, which defaults to null): specify the assumed picture field parity. (default: -1, possible values: 0 (tff), 1 (bff), -1 (auto))
deint (of type int?, which defaults to null): specify which frames to deinterlace. (default: 0, possible values: 0 (all), 1 (interlaced))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.cellauto`

Ffmpeg filter: Create pattern generated by an elementary cellular automaton.

Type:

(?filename : string?, ?f : string?, ?pattern : string?,
 ?p : string?, ?rate : string?, ?r : string?,
 ?size : string?, ?s : string?, ?rule : int?,
 ?random_fill_ratio : float?, ?ratio : float?,
 ?random_seed : int?, ?seed : int?, ?scroll : bool?,
 ?start_full : bool?, ?full : bool?, ?stitch : bool?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

filename (of type string?, which defaults to null): read initial pattern from file
f (of type string?, which defaults to null): read initial pattern from file
pattern (of type string?, which defaults to null): set initial pattern
p (of type string?, which defaults to null): set initial pattern
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
size (of type string?, which defaults to null): set video size
s (of type string?, which defaults to null): set video size
rule (of type int?, which defaults to null): set rule. (default: 110)
random_fill_ratio (of type float?, which defaults to null): set fill ratio for filling initial grid randomly. (default: 0.61803398875)
ratio (of type float?, which defaults to null): set fill ratio for filling initial grid randomly. (default: 0.61803398875)
random_seed (of type int?, which defaults to null): set the seed for filling the initial grid randomly. (default: -1)
seed (of type int?, which defaults to null): set the seed for filling the initial grid randomly. (default: -1)
scroll (of type bool?, which defaults to null): scroll pattern downward. (default: true)
start_full (of type bool?, which defaults to null): start filling the whole video. (default: false)
full (of type bool?, which defaults to null): start filling the whole video. (default: true)
stitch (of type bool?, which defaults to null): stitch boundaries. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.channelmap`

Ffmpeg filter: Remap audio channels.

Type:

(?map : string?, ?channel_layout : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

map (of type string?, which defaults to null): A comma-separated list of input channel numbers in output order.
channel_layout (of type string?, which defaults to null): Output channel layout.
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.channelsplit`

Ffmpeg filter: Split audio into per-channel streams. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?channel_layout : string?, ?channels : string?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

channel_layout (of type string?, which defaults to null): Input channel layout.. (default: stereo)
channels (of type string?, which defaults to null): Channels to extract.. (default: all)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.chorus`

Ffmpeg filter: Add a chorus effect to the audio.

Type:

(?in_gain : float?, ?out_gain : float?,
 ?delays : string?, ?decays : string?, ?speeds : string?,
 ?depths : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

in_gain (of type float?, which defaults to null): set input gain. (default: 0.4)
out_gain (of type float?, which defaults to null): set output gain. (default: 0.4)
delays (of type string?, which defaults to null): set delays
decays (of type string?, which defaults to null): set decays
speeds (of type string?, which defaults to null): set speeds
depths (of type string?, which defaults to null): set depths
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.chromahold`

Ffmpeg filter: Turns a certain color range into gray.

Type:

(?color : string?, ?similarity : float?, ?blend : float?,
 ?yuv : bool?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set the chromahold key color. (default: black)
similarity (of type float?, which defaults to null): set the chromahold similarity value. (default: 0.01)
blend (of type float?, which defaults to null): set the chromahold blend value. (default: 0.)
yuv (of type bool?, which defaults to null): color parameter is in yuv instead of rgb. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.chromakey`

Ffmpeg filter: Turns a certain color into transparency. Operates on YUV colors.

Type:

(?color : string?, ?similarity : float?, ?blend : float?,
 ?yuv : bool?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set the chromakey key color. (default: black)
similarity (of type float?, which defaults to null): set the chromakey similarity value. (default: 0.01)
blend (of type float?, which defaults to null): set the chromakey key blend value. (default: 0.)
yuv (of type bool?, which defaults to null): color parameter is in yuv instead of rgb. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.chromashift`

Ffmpeg filter: Shift chroma.

Type:

(?cbh : int?, ?cbv : int?, ?crh : int?, ?crv : int?,
 ?edge : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

cbh (of type int?, which defaults to null): shift chroma-blue horizontally. (default: 0)
cbv (of type int?, which defaults to null): shift chroma-blue vertically. (default: 0)
crh (of type int?, which defaults to null): shift chroma-red horizontally. (default: 0)
crv (of type int?, which defaults to null): shift chroma-red vertically. (default: 0)
edge (of type int?, which defaults to null): set edge operation. (default: 0, possible values: 0 (smear), 1 (wrap))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.ciescope`

Ffmpeg filter: Video CIE scope.

Type:

(?system : int?, ?cie : int?, ?gamuts : int?,
 ?size : int?, ?s : int?, ?intensity : float?,
 ?i : float?, ?contrast : float?, ?corrgamma : bool?,
 ?showwhite : bool?, ?gamma : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

system (of type int?, which defaults to null): set color system. (default: 7, possible values: 0 (ntsc), 0 (470m), 1 (ebu), 1 (470bg), 2 (smpte), 3 (240m), 4 (apple), 5 (widergb), 6 (cie1931), 7 (hdtv), 7 (rec709), 8 (uhdtv), 8 (rec2020))
cie (of type int?, which defaults to null): set cie system. (default: 0, possible values: 0 (xyy), 1 (ucs), 2 (luv))
gamuts (of type int?, which defaults to null): set what gamuts to draw. (default: 0, possible values: 1 (ntsc), 1 (470m), 2 (ebu), 2 (470bg), 4 (smpte), 8 (240m), 16 (apple), 32 (widergb), 64 (cie1931), 128 (hdtv), 128 (rec709), 256 (uhdtv), 256 (rec2020))
size (of type int?, which defaults to null): set ciescope size. (default: 512)
s (of type int?, which defaults to null): set ciescope size. (default: 512)
intensity (of type float?, which defaults to null): set ciescope intensity. (default: 0.001)
i (of type float?, which defaults to null): set ciescope intensity. (default: 0.001)
contrast (of type float?, which defaults to null): Default: 0.75
corrgamma (of type bool?, which defaults to null): Default: true
showwhite (of type bool?, which defaults to null): Default: false
gamma (of type float?, which defaults to null): Default: 2.6
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.codecview`

Ffmpeg filter: Visualize information about some codecs.

Type:

(?mv : int?, ?qp : bool?, ?mv_type : int?, ?mvt : int?,
 ?frame_type : int?, ?ft : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mv (of type int?, which defaults to null): set motion vectors to visualize. (default: 0, possible values: 1 (pf), 2 (bf), 4 (bb))
qp (of type bool?, which defaults to null): Default: false
mv_type (of type int?, which defaults to null): set motion vectors type. (default: 0, possible values: 1 (fp), 2 (bp))
mvt (of type int?, which defaults to null): set motion vectors type. (default: 0, possible values: 1 (fp), 2 (bp))
frame_type (of type int?, which defaults to null): set frame types to visualize motion vectors of. (default: 0, possible values: 1 (if), 2 (pf), 4 (bf))
ft (of type int?, which defaults to null): set frame types to visualize motion vectors of. (default: 0, possible values: 1 (if), 2 (pf), 4 (bf))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.color`

Ffmpeg filter: Provide an uniformly colored input.

Type:

(?color : string?, ?c : string?, ?size : string?,
 ?s : string?, ?rate : string?, ?r : string?,
 ?duration : int?, ?d : int?, ?sar : string?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set color. (default: black)
c (of type string?, which defaults to null): set color. (default: black)
size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.colorbalance`

Ffmpeg filter: Adjust the color balance.

Type:

(?rs : float?, ?gs : float?, ?bs : float?, ?rm : float?,
 ?gm : float?, ?bm : float?, ?rh : float?, ?gh : float?,
 ?bh : float?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

rs (of type float?, which defaults to null): set red shadows. (default: 0.)
gs (of type float?, which defaults to null): set green shadows. (default: 0.)
bs (of type float?, which defaults to null): set blue shadows. (default: 0.)
rm (of type float?, which defaults to null): set red midtones. (default: 0.)
gm (of type float?, which defaults to null): set green midtones. (default: 0.)
bm (of type float?, which defaults to null): set blue midtones. (default: 0.)
rh (of type float?, which defaults to null): set red highlights. (default: 0.)
gh (of type float?, which defaults to null): set green highlights. (default: 0.)
bh (of type float?, which defaults to null): set blue highlights. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorchannelmixer`

Ffmpeg filter: Adjust colors by mixing color channels.

Type:

(?rr : float?, ?rg : float?, ?rb : float?, ?ra : float?,
 ?gr : float?, ?gg : float?, ?gb : float?, ?ga : float?,
 ?br : float?, ?bg : float?, ?bb : float?, ?ba : float?,
 ?ar : float?, ?ag : float?, ?ab : float?, ?aa : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

rr (of type float?, which defaults to null): set the red gain for the red channel. (default: 1.)
rg (of type float?, which defaults to null): set the green gain for the red channel. (default: 0.)
rb (of type float?, which defaults to null): set the blue gain for the red channel. (default: 0.)
ra (of type float?, which defaults to null): set the alpha gain for the red channel. (default: 0.)
gr (of type float?, which defaults to null): set the red gain for the green channel. (default: 0.)
gg (of type float?, which defaults to null): set the green gain for the green channel. (default: 1.)
gb (of type float?, which defaults to null): set the blue gain for the green channel. (default: 0.)
ga (of type float?, which defaults to null): set the alpha gain for the green channel. (default: 0.)
br (of type float?, which defaults to null): set the red gain for the blue channel. (default: 0.)
bg (of type float?, which defaults to null): set the green gain for the blue channel. (default: 0.)
bb (of type float?, which defaults to null): set the blue gain for the blue channel. (default: 1.)
ba (of type float?, which defaults to null): set the alpha gain for the blue channel. (default: 0.)
ar (of type float?, which defaults to null): set the red gain for the alpha channel. (default: 0.)
ag (of type float?, which defaults to null): set the green gain for the alpha channel. (default: 0.)
ab (of type float?, which defaults to null): set the blue gain for the alpha channel. (default: 0.)
aa (of type float?, which defaults to null): set the alpha gain for the alpha channel. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorhold`

Ffmpeg filter: Turns a certain color range into gray. Operates on RGB colors.

Type:

(?color : string?, ?similarity : float?, ?blend : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set the colorhold key color. (default: black)
similarity (of type float?, which defaults to null): set the colorhold similarity value. (default: 0.01)
blend (of type float?, which defaults to null): set the colorhold blend value. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorkey`

Ffmpeg filter: Turns a certain color into transparency. Operates on RGB colors.

Type:

(?color : string?, ?similarity : float?, ?blend : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set the colorkey key color. (default: black)
similarity (of type float?, which defaults to null): set the colorkey similarity value. (default: 0.01)
blend (of type float?, which defaults to null): set the colorkey key blend value. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorkey_opencl`

Ffmpeg filter: Turns a certain color into transparency. Operates on RGB colors.

Type:

(?color : string?, ?similarity : float?, ?blend : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

color (of type string?, which defaults to null): set the colorkey key color. (default: black)
similarity (of type float?, which defaults to null): set the colorkey similarity value. (default: 0.01)
blend (of type float?, which defaults to null): set the colorkey key blend value. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorlevels`

Ffmpeg filter: Adjust the color levels.

Type:

(?rimin : float?, ?gimin : float?, ?bimin : float?,
 ?aimin : float?, ?rimax : float?, ?gimax : float?,
 ?bimax : float?, ?aimax : float?, ?romin : float?,
 ?gomin : float?, ?bomin : float?, ?aomin : float?,
 ?romax : float?, ?gomax : float?, ?bomax : float?,
 ?aomax : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

rimin (of type float?, which defaults to null): set input red black point. (default: 0.)
gimin (of type float?, which defaults to null): set input green black point. (default: 0.)
bimin (of type float?, which defaults to null): set input blue black point. (default: 0.)
aimin (of type float?, which defaults to null): set input alpha black point. (default: 0.)
rimax (of type float?, which defaults to null): set input red white point. (default: 1.)
gimax (of type float?, which defaults to null): set input green white point. (default: 1.)
bimax (of type float?, which defaults to null): set input blue white point. (default: 1.)
aimax (of type float?, which defaults to null): set input alpha white point. (default: 1.)
romin (of type float?, which defaults to null): set output red black point. (default: 0.)
gomin (of type float?, which defaults to null): set output green black point. (default: 0.)
bomin (of type float?, which defaults to null): set output blue black point. (default: 0.)
aomin (of type float?, which defaults to null): set output alpha black point. (default: 0.)
romax (of type float?, which defaults to null): set output red white point. (default: 1.)
gomax (of type float?, which defaults to null): set output green white point. (default: 1.)
bomax (of type float?, which defaults to null): set output blue white point. (default: 1.)
aomax (of type float?, which defaults to null): set output alpha white point. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colormatrix`

Ffmpeg filter: Convert color matrix.

Type:

(?src : int?, ?dst : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

src (of type int?, which defaults to null): set source color matrix. (default: -1, possible values: 0 (bt709), 1 (fcc), 2 (bt601), 2 (bt470), 2 (bt470bg), 2 (smpte170m), 3 (smpte240m), 4 (bt2020))
dst (of type int?, which defaults to null): set destination color matrix. (default: -1, possible values: 0 (bt709), 1 (fcc), 2 (bt601), 2 (bt470), 2 (bt470bg), 2 (smpte170m), 3 (smpte240m), 4 (bt2020))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.colorspace`

Ffmpeg filter: Convert between colorspaces.

Type:

(?all : int?, ?space : int?, ?range : int?,
 ?primaries : int?, ?trc : int?, ?format : int?,
 ?fast : bool?, ?dither : int?, ?wpadapt : int?,
 ?iall : int?, ?ispace : int?, ?irange : int?,
 ?iprimaries : int?, ?itrc : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

all (of type int?, which defaults to null): Set all color properties together. (default: 0, possible values: 1 (bt470m), 2 (bt470bg), 3 (bt601-6-525), 4 (bt601-6-625), 5 (bt709), 6 (smpte170m), 7 (smpte240m), 8 (bt2020))
space (of type int?, which defaults to null): Output colorspace. (default: 2, possible values: 1 (bt709), 4 (fcc), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 8 (ycgco), 0 (gbr), 9 (bt2020nc), 9 (bt2020ncl))
range (of type int?, which defaults to null): Output color range. (default: 0, possible values: 1 (tv), 1 (mpeg), 2 (pc), 2 (jpeg))
primaries (of type int?, which defaults to null): Output color primaries. (default: 2, possible values: 1 (bt709), 4 (bt470m), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 10 (smpte428), 8 (film), 11 (smpte431), 12 (smpte432), 9 (bt2020), 22 (jedec-p22))
trc (of type int?, which defaults to null): Output transfer characteristics. (default: 2, possible values: 1 (bt709), 4 (bt470m), 4 (gamma22), 5 (bt470bg), 5 (gamma28), 6 (smpte170m), 7 (smpte240m), 13 (srgb), 13 (iec61966-2-1), 11 (xvycc), 11 (iec61966-2-4), 14 (bt2020-10), 15 (bt2020-12))
format (of type int?, which defaults to null): Output pixel format. (default: -1, possible values: 0 (yuv420p), 64 (yuv420p10), 125 (yuv420p12), 4 (yuv422p), 66 (yuv422p10), 129 (yuv422p12), 5 (yuv444p), 70 (yuv444p10), 133 (yuv444p12))
fast (of type bool?, which defaults to null): Ignore primary chromaticity and gamma correction. (default: false)
dither (of type int?, which defaults to null): Dithering mode. (default: 0, possible values: 0 (none), 1 (fsb))
wpadapt (of type int?, which defaults to null): Whitepoint adaptation method. (default: 0, possible values: 0 (bradford), 1 (vonkries), 2 (identity))
iall (of type int?, which defaults to null): Set all input color properties together. (default: 0, possible values: 1 (bt470m), 2 (bt470bg), 3 (bt601-6-525), 4 (bt601-6-625), 5 (bt709), 6 (smpte170m), 7 (smpte240m), 8 (bt2020))
ispace (of type int?, which defaults to null): Input colorspace. (default: 2, possible values: 1 (bt709), 4 (fcc), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 8 (ycgco), 0 (gbr), 9 (bt2020nc), 9 (bt2020ncl))
irange (of type int?, which defaults to null): Input color range. (default: 0, possible values: 1 (tv), 1 (mpeg), 2 (pc), 2 (jpeg))
iprimaries (of type int?, which defaults to null): Input color primaries. (default: 2, possible values: 1 (bt709), 4 (bt470m), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 10 (smpte428), 8 (film), 11 (smpte431), 12 (smpte432), 9 (bt2020), 22 (jedec-p22))
itrc (of type int?, which defaults to null): Input transfer characteristics. (default: 2, possible values: 1 (bt709), 4 (bt470m), 4 (gamma22), 5 (bt470bg), 5 (gamma28), 6 (smpte170m), 7 (smpte240m), 13 (srgb), 13 (iec61966-2-1), 11 (xvycc), 11 (iec61966-2-4), 14 (bt2020-10), 15 (bt2020-12))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.compand`

Ffmpeg filter: Compress or expand audio dynamic range.

Type:

(?attacks : string?, ?decays : string?,
 ?points : string?, ?soft-knee : float?, ?gain : float?,
 ?volume : float?, ?delay : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

attacks (of type string?, which defaults to null): set time over which increase of volume is determined. (default: 0)
decays (of type string?, which defaults to null): set time over which decrease of volume is determined. (default: 0.8)
points (of type string?, which defaults to null): set points of transfer function. (default: -70/-70|-60/-20|1/0)
soft-knee (of type float?, which defaults to null): set soft-knee. (default: 0.01)
gain (of type float?, which defaults to null): set output gain. (default: 0.)
volume (of type float?, which defaults to null): set initial volume. (default: 0.)
delay (of type float?, which defaults to null): set delay for samples before sending them to volume adjuster. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.compensationdelay`

Ffmpeg filter: Audio Compensation Delay Line.

Type:

(?mm : int?, ?cm : int?, ?m : int?, ?dry : float?,
 ?wet : float?, ?temp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

mm (of type int?, which defaults to null): set mm distance. (default: 0)
cm (of type int?, which defaults to null): set cm distance. (default: 0)
m (of type int?, which defaults to null): set meter distance. (default: 0)
dry (of type float?, which defaults to null): set dry amount. (default: 0.)
wet (of type float?, which defaults to null): set wet amount. (default: 1.)
temp (of type int?, which defaults to null): set temperature °C. (default: 20)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.concat`

Ffmpeg filter: Concatenate audio and video streams. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?n : int?, ?v : int?, ?a : int?, ?unsafe : bool?,
 ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

n (of type int?, which defaults to null): specify the number of segments. (default: 2)
v (of type int?, which defaults to null): specify the number of video streams. (default: 1)
a (of type int?, which defaults to null): specify the number of audio streams. (default: 0)
unsafe (of type bool?, which defaults to null): enable unsafe mode. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.convolution`

Ffmpeg filter: Apply convolution filter.

Type:

(?0m : string?, ?1m : string?, ?2m : string?,
 ?3m : string?, ?0rdiv : float?, ?1rdiv : float?,
 ?2rdiv : float?, ?3rdiv : float?, ?0bias : float?,
 ?1bias : float?, ?2bias : float?, ?3bias : float?,
 ?0mode : int?, ?1mode : int?, ?2mode : int?,
 ?3mode : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

0m (of type string?, which defaults to null): set matrix for 1st plane. (default: 0 0 0 0 1 0 0 0 0)
1m (of type string?, which defaults to null): set matrix for 2nd plane. (default: 0 0 0 0 1 0 0 0 0)
2m (of type string?, which defaults to null): set matrix for 3rd plane. (default: 0 0 0 0 1 0 0 0 0)
3m (of type string?, which defaults to null): set matrix for 4th plane. (default: 0 0 0 0 1 0 0 0 0)
0rdiv (of type float?, which defaults to null): set rdiv for 1st plane. (default: 0.)
1rdiv (of type float?, which defaults to null): set rdiv for 2nd plane. (default: 0.)
2rdiv (of type float?, which defaults to null): set rdiv for 3rd plane. (default: 0.)
3rdiv (of type float?, which defaults to null): set rdiv for 4th plane. (default: 0.)
0bias (of type float?, which defaults to null): set bias for 1st plane. (default: 0.)
1bias (of type float?, which defaults to null): set bias for 2nd plane. (default: 0.)
2bias (of type float?, which defaults to null): set bias for 3rd plane. (default: 0.)
3bias (of type float?, which defaults to null): set bias for 4th plane. (default: 0.)
0mode (of type int?, which defaults to null): set matrix mode for 1st plane. (default: 0, possible values: 0 (square), 1 (row), 2 (column))
1mode (of type int?, which defaults to null): set matrix mode for 2nd plane. (default: 0, possible values: 0 (square), 1 (row), 2 (column))
2mode (of type int?, which defaults to null): set matrix mode for 3rd plane. (default: 0, possible values: 0 (square), 1 (row), 2 (column))
3mode (of type int?, which defaults to null): set matrix mode for 4th plane. (default: 0, possible values: 0 (square), 1 (row), 2 (column))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.convolution_opencl`

Ffmpeg filter: Apply convolution mask to input video

Type:

(?0m : string?, ?1m : string?, ?2m : string?,
 ?3m : string?, ?0rdiv : float?, ?1rdiv : float?,
 ?2rdiv : float?, ?3rdiv : float?, ?0bias : float?,
 ?1bias : float?, ?2bias : float?, ?3bias : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

0m (of type string?, which defaults to null): set matrix for 2nd plane. (default: 0 0 0 0 1 0 0 0 0)
1m (of type string?, which defaults to null): set matrix for 2nd plane. (default: 0 0 0 0 1 0 0 0 0)
2m (of type string?, which defaults to null): set matrix for 3rd plane. (default: 0 0 0 0 1 0 0 0 0)
3m (of type string?, which defaults to null): set matrix for 4th plane. (default: 0 0 0 0 1 0 0 0 0)
0rdiv (of type float?, which defaults to null): set rdiv for 1nd plane. (default: 1.)
1rdiv (of type float?, which defaults to null): set rdiv for 2nd plane. (default: 1.)
2rdiv (of type float?, which defaults to null): set rdiv for 3rd plane. (default: 1.)
3rdiv (of type float?, which defaults to null): set rdiv for 4th plane. (default: 1.)
0bias (of type float?, which defaults to null): set bias for 1st plane. (default: 0.)
1bias (of type float?, which defaults to null): set bias for 2nd plane. (default: 0.)
2bias (of type float?, which defaults to null): set bias for 3rd plane. (default: 0.)
3bias (of type float?, which defaults to null): set bias for 4th plane. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.convolve`

Ffmpeg filter: Convolve first video stream with second video stream.

Type:

(?planes : int?, ?impulse : int?, ?noise : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to convolve. (default: 7)
impulse (of type int?, which defaults to null): when to process impulses. (default: 1, possible values: 0 (first), 1 (all))
noise (of type float?, which defaults to null): set noise. (default: 1e-07)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.copy`

Ffmpeg filter: Copy the input video unchanged to the output.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.cover_rect`

Ffmpeg filter: Find and cover a user specified object.

Type:

(?cover : string?, ?mode : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

cover (of type string?, which defaults to null): cover bitmap filename
mode (of type int?, which defaults to null): set removal mode. (default: 1, possible values: 0 (cover), 1 (blur))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.crop`

Ffmpeg filter: Crop the input video.

Type:

(?out_w : string?, ?w : string?, ?out_h : string?,
 ?h : string?, ?x : string?, ?y : string?,
 ?keep_aspect : bool?, ?exact : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

out_w (of type string?, which defaults to null): set the width crop area expression. (default: iw)
w (of type string?, which defaults to null): set the width crop area expression. (default: iw)
out_h (of type string?, which defaults to null): set the height crop area expression. (default: ih)
h (of type string?, which defaults to null): set the height crop area expression. (default: ih)
x (of type string?, which defaults to null): set the x crop area expression. (default: (in_w-out_w)/2)
y (of type string?, which defaults to null): set the y crop area expression. (default: (in_h-out_h)/2)
keep_aspect (of type bool?, which defaults to null): keep aspect ratio. (default: false)
exact (of type bool?, which defaults to null): do exact cropping. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.cropdetect`

Ffmpeg filter: Auto-detect crop size.

Type:

(?limit : float?, ?round : int?, ?reset : int?,
 ?reset_count : int?, ?max_outliers : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

limit (of type float?, which defaults to null): Threshold below which the pixel is considered black. (default: 0.0941176470588)
round (of type int?, which defaults to null): Value by which the width/height should be divisible. (default: 16)
reset (of type int?, which defaults to null): Recalculate the crop area after this many frames. (default: 0)
reset_count (of type int?, which defaults to null): Recalculate the crop area after this many frames. (default: 0)
max_outliers (of type int?, which defaults to null): Threshold count of outliers. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.crossfeed`

Ffmpeg filter: Apply headphone crossfeed filter.

Type:

(?strength : float?, ?range : float?, ?level_in : float?,
 ?level_out : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

strength (of type float?, which defaults to null): set crossfeed strength. (default: 0.2)
range (of type float?, which defaults to null): set soundstage wideness. (default: 0.5)
level_in (of type float?, which defaults to null): set level in. (default: 0.9)
level_out (of type float?, which defaults to null): set level out. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.crystalizer`

Ffmpeg filter: Simple expand audio dynamic range filter.

Type:

(?i : float?, ?c : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

i (of type float?, which defaults to null): set intensity. (default: 2.)
c (of type bool?, which defaults to null): enable clipping. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.cue`

Ffmpeg filter: Delay filtering to match a cue.

Type:

(?cue : int?, ?preroll : int?, ?buffer : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

cue (of type int?, which defaults to null): cue unix timestamp in microseconds. (default: 0)
preroll (of type int?, which defaults to null): preroll duration in seconds. (default: 0)
buffer (of type int?, which defaults to null): buffer duration in seconds. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.curves`

Ffmpeg filter: Adjust components curves.

Type:

(?preset : int?, ?master : string?, ?m : string?,
 ?red : string?, ?r : string?, ?green : string?,
 ?g : string?, ?blue : string?, ?b : string?,
 ?all : string?, ?psfile : string?, ?plot : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

preset (of type int?, which defaults to null): select a color curves preset. (default: 0, possible values: 0 (none), 1 (color_negative), 2 (cross_process), 3 (darker), 4 (increase_contrast), 5 (lighter), 6 (linear_contrast), 7 (medium_contrast), 8 (negative), 9 (strong_contrast), 10 (vintage))
master (of type string?, which defaults to null): set master points coordinates
m (of type string?, which defaults to null): set master points coordinates
red (of type string?, which defaults to null): set red points coordinates
r (of type string?, which defaults to null): set red points coordinates
green (of type string?, which defaults to null): set green points coordinates
g (of type string?, which defaults to null): set green points coordinates
blue (of type string?, which defaults to null): set blue points coordinates
b (of type string?, which defaults to null): set blue points coordinates
all (of type string?, which defaults to null): set points coordinates for all components
psfile (of type string?, which defaults to null): set Photoshop curves file name
plot (of type string?, which defaults to null): save Gnuplot script of the curves in specified file
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.datascope`

Ffmpeg filter: Video data analysis.

Type:

(?size : string?, ?s : string?, ?x : int?, ?y : int?,
 ?mode : int?, ?axis : bool?, ?opacity : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set output size. (default: hd720)
s (of type string?, which defaults to null): set output size. (default: hd720)
x (of type int?, which defaults to null): set x offset. (default: 0)
y (of type int?, which defaults to null): set y offset. (default: 0)
mode (of type int?, which defaults to null): set scope mode. (default: 0, possible values: 0 (mono), 1 (color), 2 (color2))
axis (of type bool?, which defaults to null): draw column/row numbers. (default: false)
opacity (of type float?, which defaults to null): set background opacity. (default: 0.75)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.dcshift`

Ffmpeg filter: Apply a DC shift to the audio.

Type:

(?shift : float?, ?limitergain : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

shift (of type float?, which defaults to null): set DC shift. (default: 0.)
limitergain (of type float?, which defaults to null): set limiter gain. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.dctdnoiz`

Ffmpeg filter: Denoise frames using 2D DCT.

Type:

(?sigma : float?, ?s : float?, ?overlap : int?,
 ?expr : string?, ?e : string?, ?n : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

sigma (of type float?, which defaults to null): set noise sigma constant. (default: 0.)
s (of type float?, which defaults to null): set noise sigma constant. (default: 0.)
overlap (of type int?, which defaults to null): set number of block overlapping pixels. (default: -1)
expr (of type string?, which defaults to null): set coefficient factor expression
e (of type string?, which defaults to null): set coefficient factor expression
n (of type int?, which defaults to null): set the block size, expressed in bits. (default: 3)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deband`

Ffmpeg filter: Debands video.

Type:

(?1thr : float?, ?2thr : float?, ?3thr : float?,
 ?4thr : float?, ?range : int?, ?r : int?,
 ?direction : float?, ?d : float?, ?blur : bool?,
 ?b : bool?, ?coupling : bool?, ?c : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

1thr (of type float?, which defaults to null): set 1st plane threshold. (default: 0.02)
2thr (of type float?, which defaults to null): set 2nd plane threshold. (default: 0.02)
3thr (of type float?, which defaults to null): set 3rd plane threshold. (default: 0.02)
4thr (of type float?, which defaults to null): set 4th plane threshold. (default: 0.02)
range (of type int?, which defaults to null): set range. (default: 16)
r (of type int?, which defaults to null): set range. (default: 16)
direction (of type float?, which defaults to null): set direction. (default: 6.28318530718)
d (of type float?, which defaults to null): set direction. (default: 6.28318530718)
blur (of type bool?, which defaults to null): set blur. (default: true)
b (of type bool?, which defaults to null): set blur. (default: true)
coupling (of type bool?, which defaults to null): set plane coupling. (default: false)
c (of type bool?, which defaults to null): set plane coupling. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deblock`

Ffmpeg filter: Deblock video.

Type:

(?filter : int?, ?block : int?, ?alpha : float?,
 ?beta : float?, ?gamma : float?, ?delta : float?,
 ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

filter (of type int?, which defaults to null): set type of filter. (default: 1, possible values: 0 (weak), 1 (strong))
block (of type int?, which defaults to null): set size of block. (default: 8)
alpha (of type float?, which defaults to null): set 1st detection threshold. (default: 0.098)
beta (of type float?, which defaults to null): set 2nd detection threshold. (default: 0.05)
gamma (of type float?, which defaults to null): set 3rd detection threshold. (default: 0.05)
delta (of type float?, which defaults to null): set 4th detection threshold. (default: 0.05)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.decimate`

Ffmpeg filter: Decimate frames (post field matching filter). This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?cycle : int?, ?dupthresh : float?, ?scthresh : float?,
 ?blockx : int?, ?blocky : int?, ?ppsrc : bool?,
 ?chroma : bool?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

cycle (of type int?, which defaults to null): set the number of frame from which one will be dropped. (default: 5)
dupthresh (of type float?, which defaults to null): set duplicate threshold. (default: 1.1)
scthresh (of type float?, which defaults to null): set scene change threshold. (default: 15.)
blockx (of type int?, which defaults to null): set the size of the x-axis blocks used during metric calculations. (default: 32)
blocky (of type int?, which defaults to null): set the size of the y-axis blocks used during metric calculations. (default: 32)
ppsrc (of type bool?, which defaults to null): mark main input as a pre-processed input and activate clean source input stream. (default: false)
chroma (of type bool?, which defaults to null): set whether or not chroma is considered in the metric calculations. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.deconvolve`

Ffmpeg filter: Deconvolve first video stream with second video stream.

Type:

(?planes : int?, ?impulse : int?, ?noise : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to deconvolve. (default: 7)
impulse (of type int?, which defaults to null): when to process impulses. (default: 1, possible values: 0 (first), 1 (all))
noise (of type float?, which defaults to null): set noise. (default: 1e-07)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.dedot`

Ffmpeg filter: Reduce cross-luminance and cross-color.

Type:

(?m : int?, ?lt : float?, ?tl : float?, ?tc : float?,
 ?ct : float?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

m (of type int?, which defaults to null): set filtering mode. (default: 3, possible values: 1 (dotcrawl), 2 (rainbows))
lt (of type float?, which defaults to null): set spatial luma threshold. (default: 0.079)
tl (of type float?, which defaults to null): set tolerance for temporal luma. (default: 0.079)
tc (of type float?, which defaults to null): set tolerance for chroma temporal variation. (default: 0.058)
ct (of type float?, which defaults to null): set temporal chroma threshold. (default: 0.019)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deesser`

Ffmpeg filter: Apply de-essing to the audio.

Type:

(?i : float?, ?m : float?, ?f : float?, ?s : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

i (of type float?, which defaults to null): set intensity. (default: 0.)
m (of type float?, which defaults to null): set max deessing. (default: 0.5)
f (of type float?, which defaults to null): set frequency. (default: 0.5)
s (of type int?, which defaults to null): set output mode. (default: 1, possible values: 0 (i), 1 (o), 2 (e))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.deflate`

Ffmpeg filter: Apply deflate effect.

Type:

(?threshold0 : int?, ?threshold1 : int?,
 ?threshold2 : int?, ?threshold3 : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

threshold0 (of type int?, which defaults to null): set threshold for 1st plane. (default: 65535)
threshold1 (of type int?, which defaults to null): set threshold for 2nd plane. (default: 65535)
threshold2 (of type int?, which defaults to null): set threshold for 3rd plane. (default: 65535)
threshold3 (of type int?, which defaults to null): set threshold for 4th plane. (default: 65535)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deflicker`

Ffmpeg filter: Remove temporal frame luminance variations.

Type:

(?size : int?, ?s : int?, ?mode : int?, ?m : int?,
 ?bypass : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

size (of type int?, which defaults to null): set how many frames to use. (default: 5)
s (of type int?, which defaults to null): set how many frames to use. (default: 5)
mode (of type int?, which defaults to null): set how to smooth luminance. (default: 0, possible values: 0 (am), 1 (gm), 2 (hm), 3 (qm), 4 (cm), 5 (pm), 6 (median))
m (of type int?, which defaults to null): set how to smooth luminance. (default: 0, possible values: 0 (am), 1 (gm), 2 (hm), 3 (qm), 4 (cm), 5 (pm), 6 (median))
bypass (of type bool?, which defaults to null): leave frames unchanged. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deinterlace_vaapi`

Ffmpeg filter: Deinterlacing of VAAPI surfaces

Type:

(?mode : int?, ?rate : int?, ?auto : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): Deinterlacing mode. (default: 0, possible values: 0 (default), 1 (bob), 2 (weave), 3 (motion_adaptive), 4 (motion_compensated))
rate (of type int?, which defaults to null): Generate output at frame rate or field rate. (default: 1, possible values: 1 (frame), 2 (field))
auto (of type int?, which defaults to null): Only deinterlace fields, passing frames through unchanged. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.dejudder`

Ffmpeg filter: Remove judder produced by pullup.

Type:

(?cycle : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

cycle (of type int?, which defaults to null): set the length of the cycle to use for dejuddering. (default: 4)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.delogo`

Ffmpeg filter: Remove logo from input video.

Type:

(?x : int?, ?y : int?, ?w : int?, ?h : int?,
 ?show : bool?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

x (of type int?, which defaults to null): set logo x position. (default: -1)
y (of type int?, which defaults to null): set logo y position. (default: -1)
w (of type int?, which defaults to null): set logo width. (default: -1)
h (of type int?, which defaults to null): set logo height. (default: -1)
show (of type bool?, which defaults to null): show delogo area. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.denoise_vaapi`

Ffmpeg filter: VAAPI VPP for de-noise

Type:

(?denoise : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

denoise (of type int?, which defaults to null): denoise level. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.derain`

Ffmpeg filter: Apply derain filter to the input.

Type:

(?dnn_backend : int?, ?model : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

dnn_backend (of type int?, which defaults to null): DNN backend. (default: 0, possible values: 0 (native))
model (of type string?, which defaults to null): path to model file
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.deshake`

Ffmpeg filter: Stabilize shaky video.

Type:

(?x : int?, ?y : int?, ?w : int?, ?h : int?, ?rx : int?,
 ?ry : int?, ?edge : int?, ?blocksize : int?,
 ?contrast : int?, ?search : int?, ?filename : string?,
 ?opencl : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

x (of type int?, which defaults to null): set x for the rectangular search area. (default: -1)
y (of type int?, which defaults to null): set y for the rectangular search area. (default: -1)
w (of type int?, which defaults to null): set width for the rectangular search area. (default: -1)
h (of type int?, which defaults to null): set height for the rectangular search area. (default: -1)
rx (of type int?, which defaults to null): set x for the rectangular search area. (default: 16)
ry (of type int?, which defaults to null): set y for the rectangular search area. (default: 16)
edge (of type int?, which defaults to null): set edge mode. (default: 3, possible values: 0 (blank), 1 (original), 2 (clamp), 3 (mirror))
blocksize (of type int?, which defaults to null): set motion search blocksize. (default: 8)
contrast (of type int?, which defaults to null): set contrast threshold for blocks. (default: 125)
search (of type int?, which defaults to null): set search strategy. (default: 0, possible values: 0 (exhaustive), 1 (less))
filename (of type string?, which defaults to null): set motion search detailed log file name
opencl (of type bool?, which defaults to null): ignored. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.despill`

Ffmpeg filter: Despill video.

Type:

(?type : int?, ?mix : float?, ?expand : float?,
 ?red : float?, ?green : float?, ?blue : float?,
 ?brightness : float?, ?alpha : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

type (of type int?, which defaults to null): set the screen type. (default: 0, possible values: 0 (green), 1 (blue))
mix (of type float?, which defaults to null): set the spillmap mix. (default: 0.5)
expand (of type float?, which defaults to null): set the spillmap expand. (default: 0.)
red (of type float?, which defaults to null): set red scale. (default: 0.)
green (of type float?, which defaults to null): set green scale. (default: -1.)
blue (of type float?, which defaults to null): set blue scale. (default: 0.)
brightness (of type float?, which defaults to null): set brightness. (default: 0.)
alpha (of type bool?, which defaults to null): change alpha component. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.detelecine`

Ffmpeg filter: Apply an inverse telecine pattern.

Type:

(?first_field : int?, ?pattern : string?,
 ?start_frame : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

first_field (of type int?, which defaults to null): select first field. (default: 0, possible values: 0 (top), 0 (t), 1 (bottom), 1 (b))
pattern (of type string?, which defaults to null): pattern that describe for how many fields a frame is to be displayed. (default: 23)
start_frame (of type int?, which defaults to null): position of first frame with respect to the pattern if stream is cut. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.dilation`

Ffmpeg filter: Apply dilation effect.

Type:

(?threshold0 : int?, ?threshold1 : int?,
 ?threshold2 : int?, ?threshold3 : int?,
 ?coordinates : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

threshold0 (of type int?, which defaults to null): set threshold for 1st plane. (default: 65535)
threshold1 (of type int?, which defaults to null): set threshold for 2nd plane. (default: 65535)
threshold2 (of type int?, which defaults to null): set threshold for 3rd plane. (default: 65535)
threshold3 (of type int?, which defaults to null): set threshold for 4th plane. (default: 65535)
coordinates (of type int?, which defaults to null): set coordinates. (default: 255)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.dilation_opencl`

Ffmpeg filter: Apply dilation effect

Type:

(?threshold0 : float?, ?threshold1 : float?,
 ?threshold2 : float?, ?threshold3 : float?,
 ?coordinates : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

threshold0 (of type float?, which defaults to null): set threshold for 1st plane. (default: 65535.)
threshold1 (of type float?, which defaults to null): set threshold for 2nd plane. (default: 65535.)
threshold2 (of type float?, which defaults to null): set threshold for 3rd plane. (default: 65535.)
threshold3 (of type float?, which defaults to null): set threshold for 4th plane. (default: 65535.)
coordinates (of type int?, which defaults to null): set coordinates. (default: 255)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.displace`

Ffmpeg filter: Displace pixels.

Type:

(?edge : int?, ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

edge (of type int?, which defaults to null): set edge mode. (default: 1, possible values: 0 (blank), 1 (smear), 2 (wrap), 3 (mirror))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.doubleweave`

Ffmpeg filter: Weave input video fields into double number of frames.

Type:

(?first_field : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

first_field (of type int?, which defaults to null): set first field. (default: 0, possible values: 0 (top), 0 (t), 1 (bottom), 1 (b))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.drawbox`

Ffmpeg filter: Draw a colored box on the input video.

Type:

(?x : string?, ?y : string?, ?width : string?,
 ?w : string?, ?height : string?, ?h : string?,
 ?color : string?, ?c : string?, ?thickness : string?,
 ?t : string?, ?replace : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

x (of type string?, which defaults to null): set horizontal position of the left box edge. (default: 0)
y (of type string?, which defaults to null): set vertical position of the top box edge. (default: 0)
width (of type string?, which defaults to null): set width of the box. (default: 0)
w (of type string?, which defaults to null): set width of the box. (default: 0)
height (of type string?, which defaults to null): set height of the box. (default: 0)
h (of type string?, which defaults to null): set height of the box. (default: 0)
color (of type string?, which defaults to null): set color of the box. (default: black)
c (of type string?, which defaults to null): set color of the box. (default: black)
thickness (of type string?, which defaults to null): set the box thickness. (default: 3)
t (of type string?, which defaults to null): set the box thickness. (default: 3)
replace (of type bool?, which defaults to null): replace color & alpha. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.drawgraph`

Ffmpeg filter: Draw a graph using input video metadata.

Type:

(?m1 : string?, ?fg1 : string?, ?m2 : string?,
 ?fg2 : string?, ?m3 : string?, ?fg3 : string?,
 ?m4 : string?, ?fg4 : string?, ?bg : string?,
 ?min : float?, ?max : float?, ?mode : int?,
 ?slide : int?, ?size : string?, ?s : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

m1 (of type string?, which defaults to null): set 1st metadata key. (default: )
fg1 (of type string?, which defaults to null): set 1st foreground color expression. (default: 0xffff0000)
m2 (of type string?, which defaults to null): set 2nd metadata key. (default: )
fg2 (of type string?, which defaults to null): set 2nd foreground color expression. (default: 0xff00ff00)
m3 (of type string?, which defaults to null): set 3rd metadata key. (default: )
fg3 (of type string?, which defaults to null): set 3rd foreground color expression. (default: 0xffff00ff)
m4 (of type string?, which defaults to null): set 4th metadata key. (default: )
fg4 (of type string?, which defaults to null): set 4th foreground color expression. (default: 0xffffff00)
bg (of type string?, which defaults to null): set background color. (default: white)
min (of type float?, which defaults to null): set minimal value. (default: -1.)
max (of type float?, which defaults to null): set maximal value. (default: 1.)
mode (of type int?, which defaults to null): set graph mode. (default: 2, possible values: 0 (bar), 1 (dot), 2 (line))
slide (of type int?, which defaults to null): set slide mode. (default: 0, possible values: 0 (frame), 1 (replace), 2 (scroll), 3 (rscroll), 4 (picture))
size (of type string?, which defaults to null): set graph size. (default: 900x256)
s (of type string?, which defaults to null): set graph size. (default: 900x256)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.drawgrid`

Ffmpeg filter: Draw a colored grid on the input video.

Type:

(?x : string?, ?y : string?, ?width : string?,
 ?w : string?, ?height : string?, ?h : string?,
 ?color : string?, ?c : string?, ?thickness : string?,
 ?t : string?, ?replace : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

x (of type string?, which defaults to null): set horizontal offset. (default: 0)
y (of type string?, which defaults to null): set vertical offset. (default: 0)
width (of type string?, which defaults to null): set width of grid cell. (default: 0)
w (of type string?, which defaults to null): set width of grid cell. (default: 0)
height (of type string?, which defaults to null): set height of grid cell. (default: 0)
h (of type string?, which defaults to null): set height of grid cell. (default: 0)
color (of type string?, which defaults to null): set color of the grid. (default: black)
c (of type string?, which defaults to null): set color of the grid. (default: black)
thickness (of type string?, which defaults to null): set grid line thickness. (default: 1)
t (of type string?, which defaults to null): set grid line thickness. (default: 1)
replace (of type bool?, which defaults to null): replace color & alpha. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.drawtext`

Ffmpeg filter: Draw text on top of video frames using libfreetype library.

Type:

(?fontfile : string?, ?text : string?,
 ?textfile : string?, ?fontcolor : string?,
 ?fontcolor_expr : string?, ?boxcolor : string?,
 ?bordercolor : string?, ?shadowcolor : string?,
 ?box : bool?, ?boxborderw : int?, ?line_spacing : int?,
 ?fontsize : string?, ?x : string?, ?y : string?,
 ?shadowx : int?, ?shadowy : int?, ?borderw : int?,
 ?tabsize : int?, ?basetime : int?, ?font : string?,
 ?expansion : int?, ?timecode : string?,
 ?tc24hmax : bool?, ?timecode_rate : string?,
 ?r : string?, ?rate : string?, ?reload : bool?,
 ?alpha : string?, ?fix_bounds : bool?,
 ?start_number : int?, ?text_shaping : bool?,
 ?ft_load_flags : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

fontfile (of type string?, which defaults to null): set font file
text (of type string?, which defaults to null): set text
textfile (of type string?, which defaults to null): set text file
fontcolor (of type string?, which defaults to null): set foreground color. (default: black)
fontcolor_expr (of type string?, which defaults to null): set foreground color expression. (default: )
boxcolor (of type string?, which defaults to null): set box color. (default: white)
bordercolor (of type string?, which defaults to null): set border color. (default: black)
shadowcolor (of type string?, which defaults to null): set shadow color. (default: black)
box (of type bool?, which defaults to null): set box. (default: false)
boxborderw (of type int?, which defaults to null): set box border width. (default: 0)
line_spacing (of type int?, which defaults to null): set line spacing in pixels. (default: 0)
fontsize (of type string?, which defaults to null): set font size
x (of type string?, which defaults to null): set x expression. (default: 0)
y (of type string?, which defaults to null): set y expression. (default: 0)
shadowx (of type int?, which defaults to null): set shadow x offset. (default: 0)
shadowy (of type int?, which defaults to null): set shadow y offset. (default: 0)
borderw (of type int?, which defaults to null): set border width. (default: 0)
tabsize (of type int?, which defaults to null): set tab size. (default: 4)
basetime (of type int?, which defaults to null): set base time. (default: -9223372036854775808)
font (of type string?, which defaults to null): Font name. (default: Sans)
expansion (of type int?, which defaults to null): set the expansion mode. (default: 1, possible values: 0 (none), 1 (normal), 2 (strftime))
timecode (of type string?, which defaults to null): set initial timecode
tc24hmax (of type bool?, which defaults to null): set 24 hours max (timecode only). (default: false)
timecode_rate (of type string?, which defaults to null): set rate (timecode only). (default: 0/1)
r (of type string?, which defaults to null): set rate (timecode only). (default: 0/1)
rate (of type string?, which defaults to null): set rate (timecode only). (default: 0/1)
reload (of type bool?, which defaults to null): reload text file for each frame. (default: false)
alpha (of type string?, which defaults to null): apply alpha while rendering. (default: 1)
fix_bounds (of type bool?, which defaults to null): check and fix text coords to avoid clipping. (default: false)
start_number (of type int?, which defaults to null): start frame number for n/frame_num variable. (default: 0)
text_shaping (of type bool?, which defaults to null): attempt to shape text before drawing. (default: true)
ft_load_flags (of type int?, which defaults to null): set font loading flags for libfreetype. (default: 0, possible values: 0 (default), 1 (no_scale), 2 (no_hinting), 4 (render), 8 (no_bitmap), 16 (vertical_layout), 32 (force_autohint), 64 (crop_bitmap), 128 (pedantic), 512 (ignore_global_advance_width), 1024 (no_recurse), 2048 (ignore_transform), 4096 (monochrome), 8192 (linear_design), 32768 (no_autohint))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.drmeter`

Ffmpeg filter: Measure audio dynamic range.

Type:

(?length : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

length (of type float?, which defaults to null): set the window length. (default: 3.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.dynaudnorm`

Ffmpeg filter: Dynamic Audio Normalizer.

Type:

(?f : int?, ?g : int?, ?p : float?, ?m : float?,
 ?r : float?, ?n : bool?, ?c : bool?, ?b : bool?,
 ?s : float?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

f (of type int?, which defaults to null): set the frame length in msec. (default: 500)
g (of type int?, which defaults to null): set the filter size. (default: 31)
p (of type float?, which defaults to null): set the peak value. (default: 0.95)
m (of type float?, which defaults to null): set the max amplification. (default: 10.)
r (of type float?, which defaults to null): set the target RMS. (default: 0.)
n (of type bool?, which defaults to null): set channel coupling. (default: true)
c (of type bool?, which defaults to null): set DC correction. (default: false)
b (of type bool?, which defaults to null): set alternative boundary mode. (default: false)
s (of type float?, which defaults to null): set the compress factor. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.earwax`

Ffmpeg filter: Widen the stereo image.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.ebur128`

Ffmpeg filter: EBU R128 scanner. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?video : bool?, ?size : string?, ?meter : int?,
 ?framelog : int?, ?metadata : bool?, ?peak : int?,
 ?dualmono : bool?, ?panlaw : float?, ?target : int?,
 ?gauge : int?, ?scale : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

video (of type bool?, which defaults to null): set video output. (default: false)
size (of type string?, which defaults to null): set video size. (default: 640x480)
meter (of type int?, which defaults to null): set scale meter (+9 to +18). (default: 9)
framelog (of type int?, which defaults to null): force frame logging level. (default: -1, possible values: 32 (info), 40 (verbose))
metadata (of type bool?, which defaults to null): inject metadata in the filtergraph. (default: false)
peak (of type int?, which defaults to null): set peak mode. (default: 0, possible values: 0 (none), 2 (sample), 4 (true))
dualmono (of type bool?, which defaults to null): treat mono input files as dual-mono. (default: false)
panlaw (of type float?, which defaults to null): set a specific pan law for dual-mono files. (default: -3.01029995664)
target (of type int?, which defaults to null): set a specific target level in LUFS (-23 to 0). (default: -23)
gauge (of type int?, which defaults to null): set gauge display type. (default: 0, possible values: 0 (momentary), 0 (m), 1 (shortterm), 1 (s))
scale (of type int?, which defaults to null): sets display method for the stats. (default: 0, possible values: 0 (absolute), 0 (LUFS), 1 (relative), 1 (LU))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.edgedetect`

Ffmpeg filter: Detect and draw edge.

Type:

(?high : float?, ?low : float?, ?mode : int?,
 ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

high (of type float?, which defaults to null): set high threshold. (default: 0.196078431373)
low (of type float?, which defaults to null): set low threshold. (default: 0.078431372549)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (wires), 1 (colormix), 2 (canny))
planes (of type int?, which defaults to null): set planes to filter. (default: 7, possible values: 1 (y), 2 (u), 4 (v), 4 (r), 1 (g), 2 (b))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.elbg`

Ffmpeg filter: Apply posterize effect, using the ELBG algorithm.

Type:

(?codebook_length : int?, ?l : int?, ?nb_steps : int?,
 ?n : int?, ?seed : int?, ?s : int?, ?pal8 : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

codebook_length (of type int?, which defaults to null): set codebook length. (default: 256)
l (of type int?, which defaults to null): set codebook length. (default: 256)
nb_steps (of type int?, which defaults to null): set max number of steps used to compute the mapping. (default: 1)
n (of type int?, which defaults to null): set max number of steps used to compute the mapping. (default: 1)
seed (of type int?, which defaults to null): set the random seed. (default: -1)
s (of type int?, which defaults to null): set the random seed. (default: -1)
pal8 (of type bool?, which defaults to null): set the pal8 output. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.entropy`

Ffmpeg filter: Measure video frames entropy.

Type:

(?mode : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set kind of histogram entropy measurement. (default: 0, possible values: 0 (normal), 1 (diff))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.eq`

Ffmpeg filter: Adjust brightness, contrast, gamma, and saturation.

Type:

(?contrast : string?, ?brightness : string?,
 ?saturation : string?, ?gamma : string?,
 ?gamma_r : string?, ?gamma_g : string?,
 ?gamma_b : string?, ?gamma_weight : string?,
 ?eval : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

contrast (of type string?, which defaults to null): set the contrast adjustment, negative values give a negative image. (default: 1.0)
brightness (of type string?, which defaults to null): set the brightness adjustment. (default: 0.0)
saturation (of type string?, which defaults to null): set the saturation adjustment. (default: 1.0)
gamma (of type string?, which defaults to null): set the initial gamma value. (default: 1.0)
gamma_r (of type string?, which defaults to null): gamma value for red. (default: 1.0)
gamma_g (of type string?, which defaults to null): gamma value for green. (default: 1.0)
gamma_b (of type string?, which defaults to null): gamma value for blue. (default: 1.0)
gamma_weight (of type string?, which defaults to null): set the gamma weight which reduces the effect of gamma on bright areas. (default: 1.0)
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.equalizer`

Ffmpeg filter: Apply two-pole peaking equalization (EQ) filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?gain : float?,
 ?g : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 0.)
f (of type float?, which defaults to null): set central frequency. (default: 0.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set band-width. (default: 1.)
w (of type float?, which defaults to null): set band-width. (default: 1.)
gain (of type float?, which defaults to null): set gain. (default: 0.)
g (of type float?, which defaults to null): set gain. (default: 0.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.erosion`

Ffmpeg filter: Apply erosion effect.

Type:

(?threshold0 : int?, ?threshold1 : int?,
 ?threshold2 : int?, ?threshold3 : int?,
 ?coordinates : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

threshold0 (of type int?, which defaults to null): set threshold for 1st plane. (default: 65535)
threshold1 (of type int?, which defaults to null): set threshold for 2nd plane. (default: 65535)
threshold2 (of type int?, which defaults to null): set threshold for 3rd plane. (default: 65535)
threshold3 (of type int?, which defaults to null): set threshold for 4th plane. (default: 65535)
coordinates (of type int?, which defaults to null): set coordinates. (default: 255)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.erosion_opencl`

Ffmpeg filter: Apply erosion effect

Type:

(?threshold0 : float?, ?threshold1 : float?,
 ?threshold2 : float?, ?threshold3 : float?,
 ?coordinates : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

threshold0 (of type float?, which defaults to null): set threshold for 1st plane. (default: 65535.)
threshold1 (of type float?, which defaults to null): set threshold for 2nd plane. (default: 65535.)
threshold2 (of type float?, which defaults to null): set threshold for 3rd plane. (default: 65535.)
threshold3 (of type float?, which defaults to null): set threshold for 4th plane. (default: 65535.)
coordinates (of type int?, which defaults to null): set coordinates. (default: 255)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.extractplanes`

Ffmpeg filter: Extract planes as grayscale frames. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 1, possible values: 16 (y), 32 (u), 64 (v), 1 (r), 2 (g), 4 (b), 8 (a))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.extrastereo`

Ffmpeg filter: Increase difference between stereo audio channels.

Type:

(?m : float?, ?c : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

m (of type float?, which defaults to null): set the difference coefficient. (default: 2.5)
c (of type bool?, which defaults to null): enable clipping. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.fade`

Ffmpeg filter: Fade in/out input video.

Type:

(?type : int?, ?t : int?, ?start_frame : int?, ?s : int?,
 ?nb_frames : int?, ?n : int?, ?alpha : bool?,
 ?start_time : int?, ?st : int?, ?duration : int?,
 ?d : int?, ?color : string?, ?c : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

type (of type int?, which defaults to null): ‘in’ or ‘out’ for fade-in/fade-out. (default: 0, possible values: 0 (in), 1 (out))
t (of type int?, which defaults to null): ‘in’ or ‘out’ for fade-in/fade-out. (default: 0, possible values: 0 (in), 1 (out))
start_frame (of type int?, which defaults to null): Number of the first frame to which to apply the effect.. (default: 0)
s (of type int?, which defaults to null): Number of the first frame to which to apply the effect.. (default: 0)
nb_frames (of type int?, which defaults to null): Number of frames to which the effect should be applied.. (default: 25)
n (of type int?, which defaults to null): Number of frames to which the effect should be applied.. (default: 25)
alpha (of type bool?, which defaults to null): fade alpha if it is available on the input. (default: false)
start_time (of type int?, which defaults to null): Number of seconds of the beginning of the effect.. (default: 0)
st (of type int?, which defaults to null): Number of seconds of the beginning of the effect.. (default: 0)
duration (of type int?, which defaults to null): Duration of the effect in seconds.. (default: 0)
d (of type int?, which defaults to null): Duration of the effect in seconds.. (default: 0)
color (of type string?, which defaults to null): set color. (default: black)
c (of type string?, which defaults to null): set color. (default: black)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fftdnoiz`

Ffmpeg filter: Denoise frames using 3D FFT.

Type:

(?sigma : float?, ?amount : float?, ?block : int?,
 ?overlap : float?, ?prev : int?, ?next : int?,
 ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

sigma (of type float?, which defaults to null): set denoise strength. (default: 1.)
amount (of type float?, which defaults to null): set amount of denoising. (default: 1.)
block (of type int?, which defaults to null): set block log2(size). (default: 4)
overlap (of type float?, which defaults to null): set block overlap. (default: 0.5)
prev (of type int?, which defaults to null): set number of previous frames for temporal denoising. (default: 0)
next (of type int?, which defaults to null): set number of next frames for temporal denoising. (default: 0)
planes (of type int?, which defaults to null): set planes to filter. (default: 7)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fftfilt`

Ffmpeg filter: Apply arbitrary expressions to pixels in frequency domain.

Type:

(?dc_Y : int?, ?dc_U : int?, ?dc_V : int?,
 ?weight_Y : string?, ?weight_U : string?,
 ?weight_V : string?, ?eval : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dc_Y (of type int?, which defaults to null): adjust gain in Y plane. (default: 0)
dc_U (of type int?, which defaults to null): adjust gain in U plane. (default: 0)
dc_V (of type int?, which defaults to null): adjust gain in V plane. (default: 0)
weight_Y (of type string?, which defaults to null): set luminance expression in Y plane. (default: 1)
weight_U (of type string?, which defaults to null): set chrominance expression in U plane
weight_V (of type string?, which defaults to null): set chrominance expression in V plane
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.field`

Ffmpeg filter: Extract a field from the input video.

Type:

(?type : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

type (of type int?, which defaults to null): set field type (top or bottom). (default: 0, possible values: 0 (top), 1 (bottom))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fieldhint`

Ffmpeg filter: Field matching using hints.

Type:

(?hint : string?, ?mode : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

hint (of type string?, which defaults to null): set hint file
mode (of type int?, which defaults to null): set hint mode. (default: 0, possible values: 0 (absolute), 1 (relative))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fieldmatch`

Ffmpeg filter: Field matching for inverse telecine. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?order : int?, ?mode : int?, ?ppsrc : bool?,
 ?field : int?, ?mchroma : bool?, ?y0 : int?, ?y1 : int?,
 ?scthresh : float?, ?combmatch : int?, ?combdbg : int?,
 ?cthresh : int?, ?chroma : bool?, ?blockx : int?,
 ?blocky : int?, ?combpel : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

order (of type int?, which defaults to null): specify the assumed field order. (default: -1, possible values: -1 (auto), 0 (bff), 1 (tff))
mode (of type int?, which defaults to null): set the matching mode or strategy to use. (default: 1, possible values: 0 (pc), 1 (pc_n), 2 (pc_u), 3 (pc_n_ub), 4 (pcn), 5 (pcn_ub))
ppsrc (of type bool?, which defaults to null): mark main input as a pre-processed input and activate clean source input stream. (default: false)
field (of type int?, which defaults to null): set the field to match from. (default: -1, possible values: -1 (auto), 0 (bottom), 1 (top))
mchroma (of type bool?, which defaults to null): set whether or not chroma is included during the match comparisons. (default: true)
y0 (of type int?, which defaults to null): define an exclusion band which excludes the lines between y0 and y1 from the field matching decision. (default: 0)
y1 (of type int?, which defaults to null): define an exclusion band which excludes the lines between y0 and y1 from the field matching decision. (default: 0)
scthresh (of type float?, which defaults to null): set scene change detection threshold. (default: 12.)
combmatch (of type int?, which defaults to null): set combmatching mode. (default: 1, possible values: 0 (none), 1 (sc), 2 (full))
combdbg (of type int?, which defaults to null): enable comb debug. (default: 0, possible values: 0 (none), 1 (pcn), 2 (pcnub))
cthresh (of type int?, which defaults to null): set the area combing threshold used for combed frame detection. (default: 9)
chroma (of type bool?, which defaults to null): set whether or not chroma is considered in the combed frame decision. (default: false)
blockx (of type int?, which defaults to null): set the x-axis size of the window used during combed frame detection. (default: 16)
blocky (of type int?, which defaults to null): set the y-axis size of the window used during combed frame detection. (default: 16)
combpel (of type int?, which defaults to null): set the number of combed pixels inside any of the blocky by blockx size blocks on the frame for the frame to be detected as combed. (default: 80)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.fieldorder`

Ffmpeg filter: Set the field order.

Type:

(?order : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

order (of type int?, which defaults to null): output field order. (default: 1, possible values: 0 (bff), 1 (tff))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fifo`

Ffmpeg filter: Buffer input images and send them when they are requested.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fillborders`

Ffmpeg filter: Fill borders of the input video.

Type:

(?left : int?, ?right : int?, ?top : int?,
 ?bottom : int?, ?mode : int?, ?color : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

left (of type int?, which defaults to null): set the left fill border. (default: 0)
right (of type int?, which defaults to null): set the right fill border. (default: 0)
top (of type int?, which defaults to null): set the top fill border. (default: 0)
bottom (of type int?, which defaults to null): set the bottom fill border. (default: 0)
mode (of type int?, which defaults to null): set the fill borders mode. (default: 0, possible values: 0 (smear), 1 (mirror), 2 (fixed))
color (of type string?, which defaults to null): set the color for the fixed mode. (default: black)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.find_rect`

Ffmpeg filter: Find a user specified object.

Type:

(?object : string?, ?threshold : float?, ?mipmaps : int?,
 ?xmin : int?, ?ymin : int?, ?xmax : int?, ?ymax : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

object (of type string?, which defaults to null): object bitmap filename
threshold (of type float?, which defaults to null): set threshold. (default: 0.5)
mipmaps (of type int?, which defaults to null): set mipmaps. (default: 3)
xmin (of type int?, which defaults to null): Default: 0
ymin (of type int?, which defaults to null): Default: 0
xmax (of type int?, which defaults to null): Default: 0
ymax (of type int?, which defaults to null): Default: 0
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.firequalizer`

Ffmpeg filter: Finite Impulse Response Equalizer.

Type:

(?gain : string?, ?gain_entry : string?, ?delay : float?,
 ?accuracy : float?, ?wfunc : int?, ?fixed : bool?,
 ?multi : bool?, ?zero_phase : bool?, ?scale : int?,
 ?dumpfile : string?, ?dumpscale : int?, ?fft2 : bool?,
 ?min_phase : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

gain (of type string?, which defaults to null): set gain curve. (default: gain_interpolate(f))
gain_entry (of type string?, which defaults to null): set gain entry
delay (of type float?, which defaults to null): set delay. (default: 0.01)
accuracy (of type float?, which defaults to null): set accuracy. (default: 5.)
wfunc (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rectangular), 1 (hann), 2 (hamming), 3 (blackman), 4 (nuttall3), 5 (mnuttall3), 6 (nuttall), 7 (bnuttall), 8 (bharris), 9 (tukey))
fixed (of type bool?, which defaults to null): set fixed frame samples. (default: false)
multi (of type bool?, which defaults to null): set multi channels mode. (default: false)
zero_phase (of type bool?, which defaults to null): set zero phase mode. (default: false)
scale (of type int?, which defaults to null): set gain scale. (default: 1, possible values: 0 (linlin), 1 (linlog), 2 (loglin), 3 (loglog))
dumpfile (of type string?, which defaults to null): set dump file
dumpscale (of type int?, which defaults to null): set dump scale. (default: 1, possible values: 0 (linlin), 1 (linlog), 2 (loglin), 3 (loglog))
fft2 (of type bool?, which defaults to null): set 2-channels fft. (default: false)
min_phase (of type bool?, which defaults to null): set minimum phase mode. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.flanger`

Ffmpeg filter: Apply a flanging effect to the audio.

Type:

(?delay : float?, ?depth : float?, ?regen : float?,
 ?width : float?, ?speed : float?, ?shape : int?,
 ?phase : float?, ?interp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

delay (of type float?, which defaults to null): base delay in milliseconds. (default: 0.)
depth (of type float?, which defaults to null): added swept delay in milliseconds. (default: 2.)
regen (of type float?, which defaults to null): percentage regeneration (delayed signal feedback). (default: 0.)
width (of type float?, which defaults to null): percentage of delayed signal mixed with original. (default: 71.)
speed (of type float?, which defaults to null): sweeps per second (Hz). (default: 0.5)
shape (of type int?, which defaults to null): swept wave shape. (default: 0, possible values: 1 (triangular), 1 (t), 0 (sinusoidal), 0 (s))
phase (of type float?, which defaults to null): swept wave percentage phase-shift for multi-channel. (default: 25.)
interp (of type int?, which defaults to null): delay-line interpolation. (default: 0, possible values: 0 (linear), 1 (quadratic))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.flite`

Ffmpeg filter: Synthesize voice from text using libflite.

Type:

(?list_voices : bool?, ?nb_samples : int?, ?n : int?,
 ?text : string?, ?textfile : string?, ?v : string?,
 ?voice : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.audio

Arguments:

list_voices (of type bool?, which defaults to null): list voices and exit. (default: false)
nb_samples (of type int?, which defaults to null): set number of samples per frame. (default: 512)
n (of type int?, which defaults to null): set number of samples per frame. (default: 512)
text (of type string?, which defaults to null): set text to speak
textfile (of type string?, which defaults to null): set filename of the text to speak
v (of type string?, which defaults to null): set voice. (default: kal)
voice (of type string?, which defaults to null): set voice. (default: kal)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.floodfill`

Ffmpeg filter: Fill area with same color with another color.

Type:

(?x : int?, ?y : int?, ?s0 : int?, ?s1 : int?,
 ?s2 : int?, ?s3 : int?, ?d0 : int?, ?d1 : int?,
 ?d2 : int?, ?d3 : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

x (of type int?, which defaults to null): set pixel x coordinate. (default: 0)
y (of type int?, which defaults to null): set pixel y coordinate. (default: 0)
s0 (of type int?, which defaults to null): set source #0 component value. (default: 0)
s1 (of type int?, which defaults to null): set source #1 component value. (default: 0)
s2 (of type int?, which defaults to null): set source #2 component value. (default: 0)
s3 (of type int?, which defaults to null): set source #3 component value. (default: 0)
d0 (of type int?, which defaults to null): set destination #0 component value. (default: 0)
d1 (of type int?, which defaults to null): set destination #1 component value. (default: 0)
d2 (of type int?, which defaults to null): set destination #2 component value. (default: 0)
d3 (of type int?, which defaults to null): set destination #3 component value. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.format`

Ffmpeg filter: Convert the input video to one of the specified pixel formats.

Type:

(?pix_fmts : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

pix_fmts (of type string?, which defaults to null): A ‘|’-separated list of pixel formats
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.fps`

Ffmpeg filter: Force constant framerate.

Type:

(?fps : string?, ?start_time : float?, ?round : int?,
 ?eof_action : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

fps (of type string?, which defaults to null): A string describing desired output framerate. (default: 25)
start_time (of type float?, which defaults to null): Assume the first PTS should be this value.. (default: 1.79769313486e+308)
round (of type int?, which defaults to null): set rounding method for timestamps. (default: 5, possible values: 0 (zero), 1 (inf), 2 (down), 3 (up), 5 (near))
eof_action (of type int?, which defaults to null): action performed for last frame. (default: 0, possible values: 0 (round), 1 (pass))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.framepack`

Ffmpeg filter: Generate a frame packed stereoscopic video.

Type:

(?format : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

format (of type int?, which defaults to null): Frame pack output format. (default: 1, possible values: 1 (sbs), 2 (tab), 3 (frameseq), 6 (lines), 7 (columns))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.framerate`

Ffmpeg filter: Upsamples or downsamples progressive source between specified frame rates.

Type:

(?fps : string?, ?interp_start : int?,
 ?interp_end : int?, ?scene : float?, ?flags : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

fps (of type string?, which defaults to null): required output frames per second rate. (default: 50)
interp_start (of type int?, which defaults to null): point to start linear interpolation. (default: 15)
interp_end (of type int?, which defaults to null): point to end linear interpolation. (default: 240)
scene (of type float?, which defaults to null): scene change level. (default: 8.2)
flags (of type int?, which defaults to null): set flags. (default: 1, possible values: 1 (scene_change_detect), 1 (scd))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.framestep`

Ffmpeg filter: Select one frame every N frames.

Type:

(?step : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

step (of type int?, which defaults to null): set frame step. (default: 1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.freezedetect`

Ffmpeg filter: Detects frozen video input.

Type:

(?n : float?, ?noise : float?, ?d : int?,
 ?duration : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

n (of type float?, which defaults to null): set noise tolerance. (default: 0.001)
noise (of type float?, which defaults to null): set noise tolerance. (default: 0.001)
d (of type int?, which defaults to null): set minimum duration in seconds. (default: 2000000)
duration (of type int?, which defaults to null): set minimum duration in seconds. (default: 2000000)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.frei0r`

Ffmpeg filter: Apply a frei0r effect.

Type:

(?filter_name : string?, ?filter_params : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

filter_name (of type string?, which defaults to null)
filter_params (of type string?, which defaults to null)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.frei0r_src`

Ffmpeg filter: Generate a frei0r source.

Type:

(?size : string?, ?framerate : string?,
 ?filter_name : string?, ?filter_params : string?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): Dimensions of the generated video.. (default: 320x240)
framerate (of type string?, which defaults to null): Default: 25
filter_name (of type string?, which defaults to null)
filter_params (of type string?, which defaults to null)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.fspp`

Ffmpeg filter: Apply Fast Simple Post-processing filter.

Type:

(?quality : int?, ?qp : int?, ?strength : int?,
 ?use_bframe_qp : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

quality (of type int?, which defaults to null): set quality. (default: 4)
qp (of type int?, which defaults to null): force a constant quantizer parameter. (default: 0)
strength (of type int?, which defaults to null): set filter strength. (default: 0)
use_bframe_qp (of type bool?, which defaults to null): use B-frames’ QP. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.gblur`

Ffmpeg filter: Apply Gaussian Blur filter.

Type:

(?sigma : float?, ?steps : int?, ?planes : int?,
 ?sigmaV : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

sigma (of type float?, which defaults to null): set sigma. (default: 0.5)
steps (of type int?, which defaults to null): set number of steps. (default: 1)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
sigmaV (of type float?, which defaults to null): set vertical sigma. (default: -1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.geq`

Ffmpeg filter: Apply generic equation to each pixel.

Type:

(?lum_expr : string?, ?lum : string?, ?cb_expr : string?,
 ?cb : string?, ?cr_expr : string?, ?cr : string?,
 ?alpha_expr : string?, ?a : string?,
 ?red_expr : string?, ?r : string?,
 ?green_expr : string?, ?g : string?,
 ?blue_expr : string?, ?b : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

lum_expr (of type string?, which defaults to null): set luminance expression
lum (of type string?, which defaults to null): set luminance expression
cb_expr (of type string?, which defaults to null): set chroma blue expression
cb (of type string?, which defaults to null): set chroma blue expression
cr_expr (of type string?, which defaults to null): set chroma red expression
cr (of type string?, which defaults to null): set chroma red expression
alpha_expr (of type string?, which defaults to null): set alpha expression
a (of type string?, which defaults to null): set alpha expression
red_expr (of type string?, which defaults to null): set red expression
r (of type string?, which defaults to null): set red expression
green_expr (of type string?, which defaults to null): set green expression
g (of type string?, which defaults to null): set green expression
blue_expr (of type string?, which defaults to null): set blue expression
b (of type string?, which defaults to null): set blue expression
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.gradfun`

Ffmpeg filter: Debands video quickly using gradients.

Type:

(?strength : float?, ?radius : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

strength (of type float?, which defaults to null): The maximum amount by which the filter will change any one pixel.. (default: 1.2)
radius (of type int?, which defaults to null): The neighborhood to fit the gradient to.. (default: 16)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.graphmonitor`

Ffmpeg filter: Show various filtergraph stats.

Type:

(?size : string?, ?s : string?, ?opacity : float?,
 ?o : float?, ?mode : int?, ?m : int?, ?flags : int?,
 ?f : int?, ?rate : string?, ?r : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set monitor size. (default: hd720)
s (of type string?, which defaults to null): set monitor size. (default: hd720)
opacity (of type float?, which defaults to null): set video opacity. (default: 0.9)
o (of type float?, which defaults to null): set video opacity. (default: 0.9)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (full), 1 (compact))
m (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (full), 1 (compact))
flags (of type int?, which defaults to null): set flags. (default: 1, possible values: 1 (queue), 4 (frame_count_in), 2 (frame_count_out), 8 (pts), 16 (time), 32 (timebase), 64 (format), 128 (size), 256 (rate))
f (of type int?, which defaults to null): set flags. (default: 1, possible values: 1 (queue), 4 (frame_count_in), 2 (frame_count_out), 8 (pts), 16 (time), 32 (timebase), 64 (format), 128 (size), 256 (rate))
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.greyedge`

Ffmpeg filter: Estimates scene illumination by grey edge assumption.

Type:

(?difford : int?, ?minknorm : int?, ?sigma : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

difford (of type int?, which defaults to null): set differentiation order. (default: 1)
minknorm (of type int?, which defaults to null): set Minkowski norm. (default: 1)
sigma (of type float?, which defaults to null): set sigma. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.haas`

Ffmpeg filter: Apply Haas Stereo Enhancer.

Type:

(?level_in : float?, ?level_out : float?,
 ?side_gain : float?, ?middle_source : int?,
 ?middle_phase : bool?, ?left_delay : float?,
 ?left_balance : float?, ?left_gain : float?,
 ?left_phase : bool?, ?right_delay : float?,
 ?right_balance : float?, ?right_gain : float?,
 ?right_phase : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set level in. (default: 1.)
level_out (of type float?, which defaults to null): set level out. (default: 1.)
side_gain (of type float?, which defaults to null): set side gain. (default: 1.)
middle_source (of type int?, which defaults to null): set middle source. (default: 2, possible values: 0 (left), 1 (right), 2 (mid), 3 (side))
middle_phase (of type bool?, which defaults to null): set middle phase. (default: false)
left_delay (of type float?, which defaults to null): set left delay. (default: 2.05)
left_balance (of type float?, which defaults to null): set left balance. (default: -1.)
left_gain (of type float?, which defaults to null): set left gain. (default: 1.)
left_phase (of type bool?, which defaults to null): set left phase. (default: false)
right_delay (of type float?, which defaults to null): set right delay. (default: 2.12)
right_balance (of type float?, which defaults to null): set right balance. (default: 1.)
right_gain (of type float?, which defaults to null): set right gain. (default: 1.)
right_phase (of type bool?, which defaults to null): set right phase. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.haldclut`

Ffmpeg filter: Adjust colors using a Hald CLUT.

Type:

(?interp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

interp (of type int?, which defaults to null): select interpolation mode. (default: 2, possible values: 0 (nearest), 1 (trilinear), 2 (tetrahedral))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.haldclutsrc`

Ffmpeg filter: Provide an identity Hald CLUT.

Type:

(?level : int?, ?rate : string?, ?r : string?,
 ?duration : int?, ?d : int?, ?sar : string?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

level (of type int?, which defaults to null): set level. (default: 6)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.hdcd`

Ffmpeg filter: Apply High Definition Compatible Digital (HDCD) decoding.

Type:

(?disable_autoconvert : bool?, ?process_stereo : bool?,
 ?cdt_ms : int?, ?force_pe : bool?, ?analyze_mode : int?,
 ?bits_per_sample : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

disable_autoconvert (of type bool?, which defaults to null): Disable any format conversion or resampling in the filter graph.. (default: true)
process_stereo (of type bool?, which defaults to null): Process stereo channels together. Only apply target_gain when both channels match.. (default: true)
cdt_ms (of type int?, which defaults to null): Code detect timer period in ms.. (default: 2000)
force_pe (of type bool?, which defaults to null): Always extend peaks above -3dBFS even when PE is not signaled.. (default: false)
analyze_mode (of type int?, which defaults to null): Replace audio with solid tone and signal some processing aspect in the amplitude.. (default: 0, possible values: 0 (off), 1 (lle), 2 (pe), 3 (cdt), 4 (tgm))
bits_per_sample (of type int?, which defaults to null): Valid bits per sample (location of the true LSB).. (default: 16, possible values: 16 (16), 20 (20), 24 (24))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.headphone`

Ffmpeg filter: Apply headphone binaural spatialization with HRTFs in additional streams. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?map : string?, ?gain : float?, ?lfe : float?,
 ?type : int?, ?size : int?, ?hrir : int?,
 ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) -> ffmpeg.filter.audio

Arguments:

map (of type string?, which defaults to null): set channels convolution mappings
gain (of type float?, which defaults to null): set gain in dB. (default: 0.)
lfe (of type float?, which defaults to null): set lfe gain in dB. (default: 0.)
type (of type int?, which defaults to null): set processing. (default: 1, possible values: 0 (time), 1 (freq))
size (of type int?, which defaults to null): set frame size. (default: 1024)
hrir (of type int?, which defaults to null): set hrir format. (default: 0, possible values: 0 (stereo), 1 (multich))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.hflip`

Ffmpeg filter: Horizontally flip the input video.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.highpass`

Ffmpeg filter: Apply a high-pass filter with 3dB point frequency.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?poles : int?,
 ?p : int?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set frequency. (default: 3000.)
f (of type float?, which defaults to null): set frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set width. (default: 0.707)
w (of type float?, which defaults to null): set width. (default: 0.707)
poles (of type int?, which defaults to null): set number of poles. (default: 2)
p (of type int?, which defaults to null): set number of poles. (default: 2)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.highshelf`

Ffmpeg filter: Apply a high shelf filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?gain : float?,
 ?g : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 3000.)
f (of type float?, which defaults to null): set central frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
w (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
gain (of type float?, which defaults to null): set gain. (default: 0.)
g (of type float?, which defaults to null): set gain. (default: 0.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.hilbert`

Ffmpeg filter: Generate a Hilbert transform FIR coefficients.

Type:

(?sample_rate : int?, ?r : int?, ?taps : int?, ?t : int?,
 ?nb_samples : int?, ?n : int?, ?win_func : int?,
 ?w : int?, ffmpeg.filter.graph) -> ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): set sample rate. (default: 44100)
r (of type int?, which defaults to null): set sample rate. (default: 44100)
taps (of type int?, which defaults to null): set number of taps. (default: 22051)
t (of type int?, which defaults to null): set number of taps. (default: 22051)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
win_func (of type int?, which defaults to null): set window function. (default: 3, possible values: 0 (rect), 4 (bartlett), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
w (of type int?, which defaults to null): set window function. (default: 3, possible values: 0 (rect), 4 (bartlett), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.histeq`

Ffmpeg filter: Apply global color histogram equalization.

Type:

(?strength : float?, ?intensity : float?,
 ?antibanding : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

strength (of type float?, which defaults to null): set the strength. (default: 0.2)
intensity (of type float?, which defaults to null): set the intensity. (default: 0.21)
antibanding (of type int?, which defaults to null): set the antibanding level. (default: 0, possible values: 0 (none), 1 (weak), 2 (strong))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.histogram`

Ffmpeg filter: Compute and draw a histogram.

Type:

(?level_height : int?, ?scale_height : int?,
 ?display_mode : int?, ?d : int?, ?levels_mode : int?,
 ?m : int?, ?components : int?, ?c : int?,
 ?fgopacity : float?, ?f : float?, ?bgopacity : float?,
 ?b : float?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

level_height (of type int?, which defaults to null): set level height. (default: 200)
scale_height (of type int?, which defaults to null): set scale height. (default: 12)
display_mode (of type int?, which defaults to null): set display mode. (default: 2, possible values: 0 (overlay), 1 (parade), 2 (stack))
d (of type int?, which defaults to null): set display mode. (default: 2, possible values: 0 (overlay), 1 (parade), 2 (stack))
levels_mode (of type int?, which defaults to null): set levels mode. (default: 0, possible values: 0 (linear), 1 (logarithmic))
m (of type int?, which defaults to null): set levels mode. (default: 0, possible values: 0 (linear), 1 (logarithmic))
components (of type int?, which defaults to null): set color components to display. (default: 7)
c (of type int?, which defaults to null): set color components to display. (default: 7)
fgopacity (of type float?, which defaults to null): set foreground opacity. (default: 0.7)
f (of type float?, which defaults to null): set foreground opacity. (default: 0.7)
bgopacity (of type float?, which defaults to null): set background opacity. (default: 0.5)
b (of type float?, which defaults to null): set background opacity. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hqdn3d`

Ffmpeg filter: Apply a High Quality 3D Denoiser.

Type:

(?luma_spatial : float?, ?chroma_spatial : float?,
 ?luma_tmp : float?, ?chroma_tmp : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_spatial (of type float?, which defaults to null): spatial luma strength. (default: 0.)
chroma_spatial (of type float?, which defaults to null): spatial chroma strength. (default: 0.)
luma_tmp (of type float?, which defaults to null): temporal luma strength. (default: 0.)
chroma_tmp (of type float?, which defaults to null): temporal chroma strength. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hqx`

Ffmpeg filter: Scale the input by 2, 3 or 4 using the hq*x magnification algorithm.

Type:

(?n : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

n (of type int?, which defaults to null): set scale factor. (default: 3)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hstack`

Ffmpeg filter: Stack video inputs horizontally. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?shortest : bool?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
shortest (of type bool?, which defaults to null): force termination when the shortest input terminates. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.hue`

Ffmpeg filter: Adjust the hue and saturation of the input video.

Type:

(?h : string?, ?s : string?, ?H : string?, ?b : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

h (of type string?, which defaults to null): set the hue angle degrees expression
s (of type string?, which defaults to null): set the saturation expression. (default: 1)
H (of type string?, which defaults to null): set the hue angle radians expression
b (of type string?, which defaults to null): set the brightness expression. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hwdownload`

Ffmpeg filter: Download a hardware frame to a normal frame

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hwmap`

Ffmpeg filter: Map hardware frames

Type:

(?mode : int?, ?derive_device : string?, ?reverse : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): Frame mapping mode. (default: 3, possible values: 1 (read), 2 (write), 4 (overwrite), 8 (direct))
derive_device (of type string?, which defaults to null): Derive a new device of this type
reverse (of type int?, which defaults to null): Map in reverse (create and allocate in the sink). (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hwupload`

Ffmpeg filter: Upload a normal frame to a hardware frame

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.hysteresis`

Ffmpeg filter: Grow first stream into second stream by connecting components.

Type:

(?planes : int?, ?threshold : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 15)
threshold (of type int?, which defaults to null): set threshold. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.idet`

Ffmpeg filter: Interlace detect Filter.

Type:

(?intl_thres : float?, ?prog_thres : float?,
 ?rep_thres : float?, ?half_life : float?,
 ?analyze_interlaced_flag : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

intl_thres (of type float?, which defaults to null): set interlacing threshold. (default: 1.04)
prog_thres (of type float?, which defaults to null): set progressive threshold. (default: 1.5)
rep_thres (of type float?, which defaults to null): set repeat threshold. (default: 3.)
half_life (of type float?, which defaults to null): half life of cumulative statistics. (default: 0.)
analyze_interlaced_flag (of type int?, which defaults to null): set number of frames to use to determine if the interlace flag is accurate. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.il`

Ffmpeg filter: Deinterleave or interleave fields.

Type:

(?luma_mode : int?, ?l : int?, ?chroma_mode : int?,
 ?c : int?, ?alpha_mode : int?, ?a : int?,
 ?luma_swap : bool?, ?ls : bool?, ?chroma_swap : bool?,
 ?cs : bool?, ?alpha_swap : bool?, ?as : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_mode (of type int?, which defaults to null): select luma mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
l (of type int?, which defaults to null): select luma mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
chroma_mode (of type int?, which defaults to null): select chroma mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
c (of type int?, which defaults to null): select chroma mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
alpha_mode (of type int?, which defaults to null): select alpha mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
a (of type int?, which defaults to null): select alpha mode. (default: 0, possible values: 0 (none), 1 (interleave), 1 (i), 2 (deinterleave), 2 (d))
luma_swap (of type bool?, which defaults to null): swap luma fields. (default: false)
ls (of type bool?, which defaults to null): swap luma fields. (default: false)
chroma_swap (of type bool?, which defaults to null): swap chroma fields. (default: false)
cs (of type bool?, which defaults to null): swap chroma fields. (default: false)
alpha_swap (of type bool?, which defaults to null): swap alpha fields. (default: false)
as (of type bool?, which defaults to null): swap alpha fields. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.inflate`

Ffmpeg filter: Apply inflate effect.

Type:

(?threshold0 : int?, ?threshold1 : int?,
 ?threshold2 : int?, ?threshold3 : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

threshold0 (of type int?, which defaults to null): set threshold for 1st plane. (default: 65535)
threshold1 (of type int?, which defaults to null): set threshold for 2nd plane. (default: 65535)
threshold2 (of type int?, which defaults to null): set threshold for 3rd plane. (default: 65535)
threshold3 (of type int?, which defaults to null): set threshold for 4th plane. (default: 65535)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.interlace`

Ffmpeg filter: Convert progressive video into interlaced.

Type:

(?scan : int?, ?lowpass : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

scan (of type int?, which defaults to null): scanning mode. (default: 0, possible values: 0 (tff), 1 (bff))
lowpass (of type int?, which defaults to null): set vertical low-pass filter. (default: 1, possible values: 0 (off), 1 (linear), 2 (complex))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.interleave`

Ffmpeg filter: Temporally interleave video inputs. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?nb_inputs : int?, ?n : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

nb_inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
n (of type int?, which defaults to null): set number of inputs. (default: 2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.join`

Ffmpeg filter: Join multiple audio streams into multi-channel output. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?channel_layout : string?,
 ?map : string?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.audio

Arguments:

inputs (of type int?, which defaults to null): Number of input streams.. (default: 2)
channel_layout (of type string?, which defaults to null): Channel layout of the output stream.. (default: stereo)
map (of type string?, which defaults to null): A comma-separated list of channels maps in the format ’input_stream.input_channel-output_channel.
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.kerndeint`

Ffmpeg filter: Apply kernel deinterlacing to the input.

Type:

(?thresh : int?, ?map : bool?, ?order : bool?,
 ?sharp : bool?, ?twoway : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

thresh (of type int?, which defaults to null): set the threshold. (default: 10)
map (of type bool?, which defaults to null): set the map. (default: false)
order (of type bool?, which defaults to null): set the order. (default: false)
sharp (of type bool?, which defaults to null): set sharpening. (default: false)
twoway (of type bool?, which defaults to null): set twoway. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.ladspa`

Ffmpeg filter: Apply LADSPA effect. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?file : string?, ?f : string?, ?plugin : string?,
 ?p : string?, ?controls : string?, ?c : string?,
 ?sample_rate : int?, ?s : int?, ?nb_samples : int?,
 ?n : int?, ?duration : int?, ?d : int?,
 ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) -> ffmpeg.filter.audio

Arguments:

file (of type string?, which defaults to null): set library name or full path
f (of type string?, which defaults to null): set library name or full path
plugin (of type string?, which defaults to null): set plugin name
p (of type string?, which defaults to null): set plugin name
controls (of type string?, which defaults to null): set plugin options
c (of type string?, which defaults to null): set plugin options
sample_rate (of type int?, which defaults to null): set sample rate. (default: 44100)
s (of type int?, which defaults to null): set sample rate. (default: 44100)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
duration (of type int?, which defaults to null): set audio duration. (default: -1)
d (of type int?, which defaults to null): set audio duration. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.lagfun`

Ffmpeg filter: Slowly update darker pixels.

Type:

(?decay : float?, ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

decay (of type float?, which defaults to null): set decay. (default: 0.95)
planes (of type int?, which defaults to null): set what planes to filter. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lenscorrection`

Ffmpeg filter: Rectify the image by correcting for lens distortion.

Type:

(?cx : float?, ?cy : float?, ?k1 : float?, ?k2 : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

cx (of type float?, which defaults to null): set relative center x. (default: 0.5)
cy (of type float?, which defaults to null): set relative center y. (default: 0.5)
k1 (of type float?, which defaults to null): set quadratic distortion factor. (default: 0.)
k2 (of type float?, which defaults to null): set double quadratic distortion factor. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.life`

Ffmpeg filter: Create life.

Type:

(?filename : string?, ?f : string?, ?size : string?,
 ?s : string?, ?rate : string?, ?r : string?,
 ?rule : string?, ?random_fill_ratio : float?,
 ?ratio : float?, ?random_seed : int?, ?seed : int?,
 ?stitch : bool?, ?mold : int?, ?life_color : string?,
 ?death_color : string?, ?mold_color : string?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

filename (of type string?, which defaults to null): set source file
f (of type string?, which defaults to null): set source file
size (of type string?, which defaults to null): set video size
s (of type string?, which defaults to null): set video size
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
rule (of type string?, which defaults to null): set rule. (default: B3/S23)
random_fill_ratio (of type float?, which defaults to null): set fill ratio for filling initial grid randomly. (default: 0.61803398875)
ratio (of type float?, which defaults to null): set fill ratio for filling initial grid randomly. (default: 0.61803398875)
random_seed (of type int?, which defaults to null): set the seed for filling the initial grid randomly. (default: -1)
seed (of type int?, which defaults to null): set the seed for filling the initial grid randomly. (default: -1)
stitch (of type bool?, which defaults to null): stitch boundaries. (default: true)
mold (of type int?, which defaults to null): set mold speed for dead cells. (default: 0)
life_color (of type string?, which defaults to null): set life color. (default: white)
death_color (of type string?, which defaults to null): set death color. (default: black)
mold_color (of type string?, which defaults to null): set mold color. (default: black)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.limiter`

Ffmpeg filter: Limit pixels components to the specified range.

Type:

(?min : int?, ?max : int?, ?planes : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

min (of type int?, which defaults to null): set min value. (default: 0)
max (of type int?, which defaults to null): set max value. (default: 65535)
planes (of type int?, which defaults to null): set planes. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.loop`

Ffmpeg filter: Loop video frames.

Type:

(?loop : int?, ?size : int?, ?start : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

loop (of type int?, which defaults to null): number of loops. (default: 0)
size (of type int?, which defaults to null): max number of frames to loop. (default: 0)
start (of type int?, which defaults to null): set the loop start frame. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.loudnorm`

Ffmpeg filter: EBU R128 loudness normalization

Type:

(?I : float?, ?i : float?, ?LRA : float?, ?lra : float?,
 ?TP : float?, ?tp : float?, ?measured_I : float?,
 ?measured_i : float?, ?measured_LRA : float?,
 ?measured_lra : float?, ?measured_TP : float?,
 ?measured_tp : float?, ?measured_thresh : float?,
 ?offset : float?, ?linear : bool?, ?dual_mono : bool?,
 ?print_format : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

I (of type float?, which defaults to null): set integrated loudness target. (default: -24.)
i (of type float?, which defaults to null): set integrated loudness target. (default: -24.)
LRA (of type float?, which defaults to null): set loudness range target. (default: 7.)
lra (of type float?, which defaults to null): set loudness range target. (default: 7.)
TP (of type float?, which defaults to null): set maximum true peak. (default: -2.)
tp (of type float?, which defaults to null): set maximum true peak. (default: -2.)
measured_I (of type float?, which defaults to null): measured IL of input file. (default: 0.)
measured_i (of type float?, which defaults to null): measured IL of input file. (default: 0.)
measured_LRA (of type float?, which defaults to null): measured LRA of input file. (default: 0.)
measured_lra (of type float?, which defaults to null): measured LRA of input file. (default: 0.)
measured_TP (of type float?, which defaults to null): measured true peak of input file. (default: 99.)
measured_tp (of type float?, which defaults to null): measured true peak of input file. (default: 99.)
measured_thresh (of type float?, which defaults to null): measured threshold of input file. (default: -70.)
offset (of type float?, which defaults to null): set offset gain. (default: 0.)
linear (of type bool?, which defaults to null): normalize linearly if possible. (default: true)
dual_mono (of type bool?, which defaults to null): treat mono input as dual-mono. (default: false)
print_format (of type int?, which defaults to null): set print format for stats. (default: 0, possible values: 0 (none), 1 (json), 2 (summary))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.lowpass`

Ffmpeg filter: Apply a low-pass filter with 3dB point frequency.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?poles : int?,
 ?p : int?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set frequency. (default: 500.)
f (of type float?, which defaults to null): set frequency. (default: 500.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set width. (default: 0.707)
w (of type float?, which defaults to null): set width. (default: 0.707)
poles (of type int?, which defaults to null): set number of poles. (default: 2)
p (of type int?, which defaults to null): set number of poles. (default: 2)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.lowshelf`

Ffmpeg filter: Apply a low shelf filter.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?gain : float?,
 ?g : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 100.)
f (of type float?, which defaults to null): set central frequency. (default: 100.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
w (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
gain (of type float?, which defaults to null): set gain. (default: 0.)
g (of type float?, which defaults to null): set gain. (default: 0.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.lumakey`

Ffmpeg filter: Turns a certain luma into transparency.

Type:

(?threshold : int?, ?tolerance : int?, ?softness : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

threshold (of type int?, which defaults to null): set the threshold value. (default: 0)
tolerance (of type int?, which defaults to null): set the tolerance value. (default: 1)
softness (of type int?, which defaults to null): set the softness value. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lut`

Ffmpeg filter: Compute and apply a lookup table to the RGB/YUV input video.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ?y : string?, ?u : string?, ?v : string?,
 ?r : string?, ?g : string?, ?b : string?, ?a : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: clipval)
c1 (of type string?, which defaults to null): set component #1 expression. (default: clipval)
c2 (of type string?, which defaults to null): set component #2 expression. (default: clipval)
c3 (of type string?, which defaults to null): set component #3 expression. (default: clipval)
y (of type string?, which defaults to null): set Y expression. (default: clipval)
u (of type string?, which defaults to null): set U expression. (default: clipval)
v (of type string?, which defaults to null): set V expression. (default: clipval)
r (of type string?, which defaults to null): set R expression. (default: clipval)
g (of type string?, which defaults to null): set G expression. (default: clipval)
b (of type string?, which defaults to null): set B expression. (default: clipval)
a (of type string?, which defaults to null): set A expression. (default: clipval)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lut1d`

Ffmpeg filter: Adjust colors using a 1D LUT.

Type:

(?file : string?, ?interp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

file (of type string?, which defaults to null): set 1D LUT file name
interp (of type int?, which defaults to null): select interpolation mode. (default: 1, possible values: 0 (nearest), 1 (linear), 3 (cosine), 2 (cubic), 4 (spline))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lut2`

Ffmpeg filter: Compute and apply a lookup table from two video inputs.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ?d : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: x)
c1 (of type string?, which defaults to null): set component #1 expression. (default: x)
c2 (of type string?, which defaults to null): set component #2 expression. (default: x)
c3 (of type string?, which defaults to null): set component #3 expression. (default: x)
d (of type int?, which defaults to null): set output depth. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lut3d`

Ffmpeg filter: Adjust colors using a 3D LUT.

Type:

(?file : string?, ?interp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

file (of type string?, which defaults to null): set 3D LUT file name
interp (of type int?, which defaults to null): select interpolation mode. (default: 2, possible values: 0 (nearest), 1 (trilinear), 2 (tetrahedral))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lutrgb`

Ffmpeg filter: Compute and apply a lookup table to the RGB input video.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ?y : string?, ?u : string?, ?v : string?,
 ?r : string?, ?g : string?, ?b : string?, ?a : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: clipval)
c1 (of type string?, which defaults to null): set component #1 expression. (default: clipval)
c2 (of type string?, which defaults to null): set component #2 expression. (default: clipval)
c3 (of type string?, which defaults to null): set component #3 expression. (default: clipval)
y (of type string?, which defaults to null): set Y expression. (default: clipval)
u (of type string?, which defaults to null): set U expression. (default: clipval)
v (of type string?, which defaults to null): set V expression. (default: clipval)
r (of type string?, which defaults to null): set R expression. (default: clipval)
g (of type string?, which defaults to null): set G expression. (default: clipval)
b (of type string?, which defaults to null): set B expression. (default: clipval)
a (of type string?, which defaults to null): set A expression. (default: clipval)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lutyuv`

Ffmpeg filter: Compute and apply a lookup table to the YUV input video.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ?y : string?, ?u : string?, ?v : string?,
 ?r : string?, ?g : string?, ?b : string?, ?a : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: clipval)
c1 (of type string?, which defaults to null): set component #1 expression. (default: clipval)
c2 (of type string?, which defaults to null): set component #2 expression. (default: clipval)
c3 (of type string?, which defaults to null): set component #3 expression. (default: clipval)
y (of type string?, which defaults to null): set Y expression. (default: clipval)
u (of type string?, which defaults to null): set U expression. (default: clipval)
v (of type string?, which defaults to null): set V expression. (default: clipval)
r (of type string?, which defaults to null): set R expression. (default: clipval)
g (of type string?, which defaults to null): set G expression. (default: clipval)
b (of type string?, which defaults to null): set B expression. (default: clipval)
a (of type string?, which defaults to null): set A expression. (default: clipval)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.lv2`

Ffmpeg filter: Apply LV2 effect. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?plugin : string?, ?p : string?, ?controls : string?,
 ?c : string?, ?sample_rate : int?, ?s : int?,
 ?nb_samples : int?, ?n : int?, ?duration : int?,
 ?d : int?, ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) -> ffmpeg.filter.audio

Arguments:

plugin (of type string?, which defaults to null): set plugin uri
p (of type string?, which defaults to null): set plugin uri
controls (of type string?, which defaults to null): set plugin options
c (of type string?, which defaults to null): set plugin options
sample_rate (of type int?, which defaults to null): set sample rate. (default: 44100)
s (of type int?, which defaults to null): set sample rate. (default: 44100)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
duration (of type int?, which defaults to null): set audio duration. (default: -1)
d (of type int?, which defaults to null): set audio duration. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.mandelbrot`

Ffmpeg filter: Render a Mandelbrot fractal.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?maxiter : int?, ?start_x : float?,
 ?start_y : float?, ?start_scale : float?,
 ?end_scale : float?, ?end_pts : float?,
 ?bailout : float?, ?morphxf : float?, ?morphyf : float?,
 ?morphamp : float?, ?outer : int?, ?inner : int?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set frame size. (default: 640x480)
s (of type string?, which defaults to null): set frame size. (default: 640x480)
rate (of type string?, which defaults to null): set frame rate. (default: 25)
r (of type string?, which defaults to null): set frame rate. (default: 25)
maxiter (of type int?, which defaults to null): set max iterations number. (default: 7189)
start_x (of type float?, which defaults to null): set the initial x position. (default: -0.743643887037)
start_y (of type float?, which defaults to null): set the initial y position. (default: -0.131825904205)
start_scale (of type float?, which defaults to null): set the initial scale value. (default: 3.)
end_scale (of type float?, which defaults to null): set the terminal scale value. (default: 0.3)
end_pts (of type float?, which defaults to null): set the terminal pts value. (default: 400.)
bailout (of type float?, which defaults to null): set the bailout value. (default: 10.)
morphxf (of type float?, which defaults to null): set morph x frequency. (default: 0.01)
morphyf (of type float?, which defaults to null): set morph y frequency. (default: 0.0123)
morphamp (of type float?, which defaults to null): set morph amplitude. (default: 0.)
outer (of type int?, which defaults to null): set outer coloring mode. (default: 1, possible values: 0 (iteration_count), 1 (normalized_iteration_count), 2 (white), 3 (outz))
inner (of type int?, which defaults to null): set inner coloring mode. (default: 3, possible values: 0 (black), 1 (period), 2 (convergence), 3 (mincol))
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.maskedclamp`

Ffmpeg filter: Clamp first stream with second stream and third stream.

Type:

(?undershoot : int?, ?overshoot : int?, ?planes : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

undershoot (of type int?, which defaults to null): set undershoot. (default: 0)
overshoot (of type int?, which defaults to null): set overshoot. (default: 0)
planes (of type int?, which defaults to null): set planes. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.maskedmerge`

Ffmpeg filter: Merge first stream with second stream using third stream as mask.

Type:

(?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.maskfun`

Ffmpeg filter: Create Mask.

Type:

(?low : int?, ?high : int?, ?planes : int?, ?fill : int?,
 ?sum : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

low (of type int?, which defaults to null): set low threshold. (default: 10)
high (of type int?, which defaults to null): set high threshold. (default: 10)
planes (of type int?, which defaults to null): set planes. (default: 15)
fill (of type int?, which defaults to null): set fill value. (default: 0)
sum (of type int?, which defaults to null): set sum value. (default: 10)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.mcdeint`

Ffmpeg filter: Apply motion compensating deinterlacing.

Type:

(?mode : int?, ?parity : int?, ?qp : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (fast), 1 (medium), 2 (slow), 3 (extra_slow))
parity (of type int?, which defaults to null): set the assumed picture field parity. (default: 1, possible values: 0 (tff), 1 (bff))
qp (of type int?, which defaults to null): set qp. (default: 1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.mcompand`

Ffmpeg filter: Multiband Compress or expand audio dynamic range.

Type:

(?args : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

args (of type string?, which defaults to null): set parameters for each band. (default: 0.005,0.1 6 -47/-40,-34/-34,-17/-33 100 | 0.003,0.05 6 -47/-40,-34/-34,-17/-33 400 | 0.000625,0.0125 6 -47/-40,-34/-34,-15/-33 1600 | 0.0001,0.025 6 -47/-40,-34/-34,-31/-31,-0/-30 6400 | 0,0.025 6 -38/-31,-28/-28,-0/-25 22000)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.mergeplanes`

Ffmpeg filter: Merge planes. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?mapping : int?, ?format : string?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

mapping (of type int?, which defaults to null): set input to output plane mapping. (default: 0)
format (of type string?, which defaults to null): set output pixel format. (default: yuva444p)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.mestimate`

Ffmpeg filter: Generate motion vectors.

Type:

(?method : int?, ?mb_size : int?, ?search_param : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

method (of type int?, which defaults to null): motion estimation method. (default: 1, possible values: 1 (esa), 2 (tss), 3 (tdls), 4 (ntss), 5 (fss), 6 (ds), 7 (hexbs), 8 (epzs), 9 (umh))
mb_size (of type int?, which defaults to null): macroblock size. (default: 16)
search_param (of type int?, which defaults to null): search parameter. (default: 7)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.metadata`

Ffmpeg filter: Manipulate video frame metadata.

Type:

(?mode : int?, ?key : string?, ?value : string?,
 ?function : int?, ?expr : string?, ?file : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set a mode of operation. (default: 0, possible values: 0 (select), 1 (add), 2 (modify), 3 (delete), 4 (print))
key (of type string?, which defaults to null): set metadata key
value (of type string?, which defaults to null): set metadata value
function (of type int?, which defaults to null): function for comparing values. (default: 0, possible values: 0 (same_str), 1 (starts_with), 2 (less), 3 (equal), 4 (greater), 5 (expr))
expr (of type string?, which defaults to null): set expression for expr function
file (of type string?, which defaults to null): set file where to print metadata information
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.midequalizer`

Ffmpeg filter: Apply Midway Equalization.

Type:

(?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.minterpolate`

Ffmpeg filter: Frame rate conversion using Motion Interpolation.

Type:

(?fps : string?, ?mi_mode : int?, ?mc_mode : int?,
 ?me_mode : int?, ?me : int?, ?mb_size : int?,
 ?search_param : int?, ?vsbmc : int?, ?scd : int?,
 ?scd_threshold : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

fps (of type string?, which defaults to null): output’s frame rate. (default: 60)
mi_mode (of type int?, which defaults to null): motion interpolation mode. (default: 2, possible values: 0 (dup), 1 (blend), 2 (mci))
mc_mode (of type int?, which defaults to null): motion compensation mode. (default: 0, possible values: 0 (obmc), 1 (aobmc))
me_mode (of type int?, which defaults to null): motion estimation mode. (default: 1, possible values: 0 (bidir), 1 (bilat))
me (of type int?, which defaults to null): motion estimation method. (default: 8, possible values: 1 (esa), 2 (tss), 3 (tdls), 4 (ntss), 5 (fss), 6 (ds), 7 (hexbs), 8 (epzs), 9 (umh))
mb_size (of type int?, which defaults to null): macroblock size. (default: 16)
search_param (of type int?, which defaults to null): search parameter. (default: 32)
vsbmc (of type int?, which defaults to null): variable-size block motion compensation. (default: 0)
scd (of type int?, which defaults to null): scene change detection method. (default: 1, possible values: 0 (none), 1 (fdiff))
scd_threshold (of type float?, which defaults to null): scene change threshold. (default: 5.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.mix`

Ffmpeg filter: Mix video inputs. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?weights : string?, ?scale : float?,
 ?duration : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
weights (of type string?, which defaults to null): set weight for each input. (default: 1 1)
scale (of type float?, which defaults to null): set scale. (default: 0.)
duration (of type int?, which defaults to null): how to determine end of stream. (default: 0, possible values: 0 (longest), 1 (shortest), 2 (first))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.movie`

Ffmpeg filter: Read from a movie source. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?filename : string?, ?format_name : string?,
 ?f : string?, ?stream_index : int?, ?si : int?,
 ?seek_point : float?, ?sp : float?, ?streams : string?,
 ?s : string?, ?loop : int?, ?discontinuity : int?,
 ffmpeg.filter.graph) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

filename (of type string?, which defaults to null)
format_name (of type string?, which defaults to null): set format name
f (of type string?, which defaults to null): set format name
stream_index (of type int?, which defaults to null): set stream index. (default: -1)
si (of type int?, which defaults to null): set stream index. (default: -1)
seek_point (of type float?, which defaults to null): set seekpoint (seconds). (default: 0.)
sp (of type float?, which defaults to null): set seekpoint (seconds). (default: 0.)
streams (of type string?, which defaults to null): set streams
s (of type string?, which defaults to null): set streams
loop (of type int?, which defaults to null): set loop count. (default: 1)
discontinuity (of type int?, which defaults to null): set discontinuity threshold. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.mpdecimate`

Ffmpeg filter: Remove near-duplicate frames.

Type:

(?max : int?, ?hi : int?, ?lo : int?, ?frac : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

max (of type int?, which defaults to null): set the maximum number of consecutive dropped frames (positive), or the minimum interval between dropped frames (negative). (default: 0)
hi (of type int?, which defaults to null): set high dropping threshold. (default: 768)
lo (of type int?, which defaults to null): set low dropping threshold. (default: 320)
frac (of type float?, which defaults to null): set fraction dropping threshold. (default: 0.33)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.mptestsrc`

Ffmpeg filter: Generate various test pattern.

Type:

(?rate : string?, ?r : string?, ?duration : int?,
 ?d : int?, ?test : int?, ?t : int?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
test (of type int?, which defaults to null): set test to perform. (default: 10, possible values: 0 (dc_luma), 1 (dc_chroma), 2 (freq_luma), 3 (freq_chroma), 4 (amp_luma), 5 (amp_chroma), 6 (cbp), 7 (mv), 8 (ring1), 9 (ring2), 10 (all))
t (of type int?, which defaults to null): set test to perform. (default: 10, possible values: 0 (dc_luma), 1 (dc_chroma), 2 (freq_luma), 3 (freq_chroma), 4 (amp_luma), 5 (amp_chroma), 6 (cbp), 7 (mv), 8 (ring1), 9 (ring2), 10 (all))
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.negate`

Ffmpeg filter: Negate input video.

Type:

(?negate_alpha : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

negate_alpha (of type bool?, which defaults to null): Default: false
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.nlmeans`

Ffmpeg filter: Non-local means denoiser.

Type:

(?s : float?, ?p : int?, ?pc : int?, ?r : int?,
 ?rc : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

s (of type float?, which defaults to null): denoising strength. (default: 1.)
p (of type int?, which defaults to null): patch size. (default: 7)
pc (of type int?, which defaults to null): patch size for chroma planes. (default: 0)
r (of type int?, which defaults to null): research window. (default: 15)
rc (of type int?, which defaults to null): research window for chroma planes. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.nlmeans_opencl`

Ffmpeg filter: Non-local means denoiser through OpenCL

Type:

(?s : float?, ?p : int?, ?pc : int?, ?r : int?,
 ?rc : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

s (of type float?, which defaults to null): denoising strength. (default: 1.)
p (of type int?, which defaults to null): patch size. (default: 7)
pc (of type int?, which defaults to null): patch size for chroma planes. (default: 0)
r (of type int?, which defaults to null): research window. (default: 15)
rc (of type int?, which defaults to null): research window for chroma planes. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.nnedi`

Ffmpeg filter: Apply neural network edge directed interpolation intra-only deinterlacer.

Type:

(?weights : string?, ?deint : int?, ?field : int?,
 ?planes : int?, ?nsize : int?, ?nns : int?,
 ?qual : int?, ?etype : int?, ?pscrn : int?,
 ?fapprox : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

weights (of type string?, which defaults to null): set weights file. (default: nnedi3_weights.bin)
deint (of type int?, which defaults to null): set which frames to deinterlace. (default: 0, possible values: 0 (all), 1 (interlaced))
field (of type int?, which defaults to null): set mode of operation. (default: -1, possible values: -2 (af), -1 (a), 0 (t), 1 (b), 2 (tf), 3 (bf))
planes (of type int?, which defaults to null): set which planes to process. (default: 7)
nsize (of type int?, which defaults to null): set size of local neighborhood around each pixel, used by the predictor neural network. (default: 6, possible values: 0 (s8x6), 1 (s16x6), 2 (s32x6), 3 (s48x6), 4 (s8x4), 5 (s16x4), 6 (s32x4))
nns (of type int?, which defaults to null): set number of neurons in predictor neural network. (default: 1, possible values: 0 (n16), 1 (n32), 2 (n64), 3 (n128), 4 (n256))
qual (of type int?, which defaults to null): set quality. (default: 1, possible values: 1 (fast), 2 (slow))
etype (of type int?, which defaults to null): set which set of weights to use in the predictor. (default: 0, possible values: 0 (a), 1 (s))
pscrn (of type int?, which defaults to null): set prescreening. (default: 2, possible values: 0 (none), 1 (original), 2 (new))
fapprox (of type int?, which defaults to null): Default: 0
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.noformat`

Ffmpeg filter: Force libavfilter not to use any of the specified pixel formats for the input to the next filter.

Type:

(?pix_fmts : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

pix_fmts (of type string?, which defaults to null): A ‘|’-separated list of pixel formats
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.noise`

Ffmpeg filter: Add noise.

Type:

(?all_seed : int?, ?all_strength : int?, ?alls : int?,
 ?all_flags : int?, ?allf : int?, ?c0_seed : int?,
 ?c0_strength : int?, ?c0s : int?, ?c0_flags : int?,
 ?c0f : int?, ?c1_seed : int?, ?c1_strength : int?,
 ?c1s : int?, ?c1_flags : int?, ?c1f : int?,
 ?c2_seed : int?, ?c2_strength : int?, ?c2s : int?,
 ?c2_flags : int?, ?c2f : int?, ?c3_seed : int?,
 ?c3_strength : int?, ?c3s : int?, ?c3_flags : int?,
 ?c3f : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

all_seed (of type int?, which defaults to null): set component #0 noise seed. (default: -1)
all_strength (of type int?, which defaults to null): set component #0 strength. (default: 0)
alls (of type int?, which defaults to null): set component #0 strength. (default: 0)
all_flags (of type int?, which defaults to null): set component #0 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
allf (of type int?, which defaults to null): set component #0 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c0_seed (of type int?, which defaults to null): set component #0 noise seed. (default: -1)
c0_strength (of type int?, which defaults to null): set component #0 strength. (default: 0)
c0s (of type int?, which defaults to null): set component #0 strength. (default: 0)
c0_flags (of type int?, which defaults to null): set component #0 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c0f (of type int?, which defaults to null): set component #0 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c1_seed (of type int?, which defaults to null): set component #1 noise seed. (default: -1)
c1_strength (of type int?, which defaults to null): set component #1 strength. (default: 0)
c1s (of type int?, which defaults to null): set component #1 strength. (default: 0)
c1_flags (of type int?, which defaults to null): set component #1 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c1f (of type int?, which defaults to null): set component #1 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c2_seed (of type int?, which defaults to null): set component #2 noise seed. (default: -1)
c2_strength (of type int?, which defaults to null): set component #2 strength. (default: 0)
c2s (of type int?, which defaults to null): set component #2 strength. (default: 0)
c2_flags (of type int?, which defaults to null): set component #2 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c2f (of type int?, which defaults to null): set component #2 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c3_seed (of type int?, which defaults to null): set component #3 noise seed. (default: -1)
c3_strength (of type int?, which defaults to null): set component #3 strength. (default: 0)
c3s (of type int?, which defaults to null): set component #3 strength. (default: 0)
c3_flags (of type int?, which defaults to null): set component #3 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
c3f (of type int?, which defaults to null): set component #3 flags. (default: 0, possible values: 8 (a), 16 (p), 2 (t), 1 (u))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.normalize`

Ffmpeg filter: Normalize RGB video.

Type:

(?blackpt : string?, ?whitept : string?,
 ?smoothing : int?, ?independence : float?,
 ?strength : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

blackpt (of type string?, which defaults to null): output color to which darkest input color is mapped. (default: black)
whitept (of type string?, which defaults to null): output color to which brightest input color is mapped. (default: white)
smoothing (of type int?, which defaults to null): amount of temporal smoothing of the input range, to reduce flicker. (default: 0)
independence (of type float?, which defaults to null): proportion of independent to linked channel normalization. (default: 1.)
strength (of type float?, which defaults to null): strength of filter, from no effect to full normalization. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.null`

Ffmpeg filter: Pass the source unchanged to the output.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.nullsink`

Ffmpeg filter: Do absolutely nothing with the input video.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) -> unit

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.nullsrc`

Ffmpeg filter: Null video source, return unprocessed video frames.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.openclsrc`

Ffmpeg filter: Generate video using an OpenCL program

Type:

(?source : string?, ?kernel : string?, ?size : string?,
 ?s : string?, ?format : string?, ?rate : string?,
 ?r : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

source (of type string?, which defaults to null): OpenCL program source file
kernel (of type string?, which defaults to null): Kernel name in program
size (of type string?, which defaults to null): Video size
s (of type string?, which defaults to null): Video size
format (of type string?, which defaults to null): Video format
rate (of type string?, which defaults to null): Video frame rate. (default: 25)
r (of type string?, which defaults to null): Video frame rate. (default: 25)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.oscilloscope`

Ffmpeg filter: 2D Video Oscilloscope.

Type:

(?x : float?, ?y : float?, ?s : float?, ?t : float?,
 ?o : float?, ?tx : float?, ?ty : float?, ?tw : float?,
 ?th : float?, ?c : int?, ?g : bool?, ?st : bool?,
 ?sc : bool?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

x (of type float?, which defaults to null): set scope x position. (default: 0.5)
y (of type float?, which defaults to null): set scope y position. (default: 0.5)
s (of type float?, which defaults to null): set scope size. (default: 0.8)
t (of type float?, which defaults to null): set scope tilt. (default: 0.5)
o (of type float?, which defaults to null): set trace opacity. (default: 0.8)
tx (of type float?, which defaults to null): set trace x position. (default: 0.5)
ty (of type float?, which defaults to null): set trace y position. (default: 0.9)
tw (of type float?, which defaults to null): set trace width. (default: 0.8)
th (of type float?, which defaults to null): set trace height. (default: 0.3)
c (of type int?, which defaults to null): set components to trace. (default: 7)
g (of type bool?, which defaults to null): draw trace grid. (default: true)
st (of type bool?, which defaults to null): draw statistics. (default: true)
sc (of type bool?, which defaults to null): draw scope. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.overlay`

Ffmpeg filter: Overlay a video source on top of the input.

Type:

(?x : string?, ?y : string?, ?eof_action : int?,
 ?eval : int?, ?shortest : bool?, ?format : int?,
 ?repeatlast : bool?, ?alpha : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

x (of type string?, which defaults to null): set the x expression. (default: 0)
y (of type string?, which defaults to null): set the y expression. (default: 0)
eof_action (of type int?, which defaults to null): Action to take when encountering EOF from secondary input . (default: 0, possible values: 0 (repeat), 1 (endall), 2 (pass))
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 1, possible values: 0 (init), 1 (frame))
shortest (of type bool?, which defaults to null): force termination when the shortest input terminates. (default: false)
format (of type int?, which defaults to null): set output format. (default: 0, possible values: 0 (yuv420), 1 (yuv422), 2 (yuv444), 3 (rgb), 4 (gbrp), 5 (auto))
repeatlast (of type bool?, which defaults to null): repeat overlay of the last overlay frame. (default: true)
alpha (of type int?, which defaults to null): alpha format. (default: 0, possible values: 0 (straight), 1 (premultiplied))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.overlay_opencl`

Ffmpeg filter: Overlay one video on top of another

Type:

(?x : int?, ?y : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

x (of type int?, which defaults to null): Overlay x position. (default: 0)
y (of type int?, which defaults to null): Overlay y position. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.owdenoise`

Ffmpeg filter: Denoise using wavelets.

Type:

(?depth : int?, ?luma_strength : float?, ?ls : float?,
 ?chroma_strength : float?, ?cs : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

depth (of type int?, which defaults to null): set depth. (default: 8)
luma_strength (of type float?, which defaults to null): set luma strength. (default: 1.)
ls (of type float?, which defaults to null): set luma strength. (default: 1.)
chroma_strength (of type float?, which defaults to null): set chroma strength. (default: 1.)
cs (of type float?, which defaults to null): set chroma strength. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pad`

Ffmpeg filter: Pad the input video.

Type:

(?width : string?, ?w : string?, ?height : string?,
 ?h : string?, ?x : string?, ?y : string?,
 ?color : string?, ?eval : int?, ?aspect : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

width (of type string?, which defaults to null): set the pad area width expression. (default: iw)
w (of type string?, which defaults to null): set the pad area width expression. (default: iw)
height (of type string?, which defaults to null): set the pad area height expression. (default: ih)
h (of type string?, which defaults to null): set the pad area height expression. (default: ih)
x (of type string?, which defaults to null): set the x offset expression for the input image position. (default: 0)
y (of type string?, which defaults to null): set the y offset expression for the input image position. (default: 0)
color (of type string?, which defaults to null): set the color of the padded area border. (default: black)
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
aspect (of type string?, which defaults to null): pad to fit an aspect instead of a resolution. (default: 0/1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pal100bars`

Ffmpeg filter: Generate PAL 100% color bars.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.pal75bars`

Ffmpeg filter: Generate PAL 75% color bars.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.palettegen`

Ffmpeg filter: Find the optimal palette for a given stream.

Type:

(?max_colors : int?, ?reserve_transparent : bool?,
 ?transparency_color : string?, ?stats_mode : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

max_colors (of type int?, which defaults to null): set the maximum number of colors to use in the palette. (default: 256)
reserve_transparent (of type bool?, which defaults to null): reserve a palette entry for transparency. (default: true)
transparency_color (of type string?, which defaults to null): set a background color for transparency. (default: lime)
stats_mode (of type int?, which defaults to null): set statistics mode. (default: 0, possible values: 0 (full), 1 (diff), 2 (single))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.paletteuse`

Ffmpeg filter: Use a palette to downsample an input video stream.

Type:

(?dither : int?, ?bayer_scale : int?, ?diff_mode : int?,
 ?new : bool?, ?alpha_threshold : int?,
 ?debug_kdtree : string?, ?color_search : int?,
 ?mean_err : bool?, ?debug_accuracy : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dither (of type int?, which defaults to null): select dithering mode. (default: 5, possible values: 1 (bayer), 2 (heckbert), 3 (floyd_steinberg), 4 (sierra2), 5 (sierra2_4a))
bayer_scale (of type int?, which defaults to null): set scale for bayer dithering. (default: 2)
diff_mode (of type int?, which defaults to null): set frame difference mode. (default: 0, possible values: 1 (rectangle))
new (of type bool?, which defaults to null): take new palette for each output frame. (default: false)
alpha_threshold (of type int?, which defaults to null): set the alpha threshold for transparency. (default: 128)
debug_kdtree (of type string?, which defaults to null): save Graphviz graph of the kdtree in specified file
color_search (of type int?, which defaults to null): set reverse colormap color search method. (default: 0, possible values: 0 (nns_iterative), 1 (nns_recursive), 2 (bruteforce))
mean_err (of type bool?, which defaults to null): compute and print mean error. (default: false)
debug_accuracy (of type bool?, which defaults to null): test color search accuracy. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pan`

Ffmpeg filter: Remix channels with coefficients (panning).

Type:

(?args : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

args (of type string?, which defaults to null)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.perms`

Ffmpeg filter: Set permissions for the output video frame.

Type:

(?mode : int?, ?seed : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): select permissions mode. (default: 0, possible values: 0 (none), 1 (ro), 2 (rw), 3 (toggle), 4 (random))
seed (of type int?, which defaults to null): set the seed for the random mode. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.perspective`

Ffmpeg filter: Correct the perspective of video.

Type:

(?x0 : string?, ?y0 : string?, ?x1 : string?,
 ?y1 : string?, ?x2 : string?, ?y2 : string?,
 ?x3 : string?, ?y3 : string?, ?interpolation : int?,
 ?sense : int?, ?eval : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

x0 (of type string?, which defaults to null): set top left x coordinate. (default: 0)
y0 (of type string?, which defaults to null): set top left y coordinate. (default: 0)
x1 (of type string?, which defaults to null): set top right x coordinate. (default: W)
y1 (of type string?, which defaults to null): set top right y coordinate. (default: 0)
x2 (of type string?, which defaults to null): set bottom left x coordinate. (default: 0)
y2 (of type string?, which defaults to null): set bottom left y coordinate. (default: H)
x3 (of type string?, which defaults to null): set bottom right x coordinate. (default: W)
y3 (of type string?, which defaults to null): set bottom right y coordinate. (default: H)
interpolation (of type int?, which defaults to null): set interpolation. (default: 0, possible values: 0 (linear), 1 (cubic))
sense (of type int?, which defaults to null): specify the sense of the coordinates. (default: 0, possible values: 0 (source), 1 (destination))
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.phase`

Ffmpeg filter: Phase shift fields.

Type:

(?mode : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set phase mode. (default: 8, possible values: 0 (p), 1 (t), 2 (b), 3 (T), 4 (B), 5 (u), 6 (U), 7 (a), 8 (A))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pixdesctest`

Ffmpeg filter: Test pixel format definitions.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pixscope`

Ffmpeg filter: Pixel data analysis.

Type:

(?x : float?, ?y : float?, ?w : int?, ?h : int?,
 ?o : float?, ?wx : float?, ?wy : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

x (of type float?, which defaults to null): set scope x offset. (default: 0.5)
y (of type float?, which defaults to null): set scope y offset. (default: 0.5)
w (of type int?, which defaults to null): set scope width. (default: 7)
h (of type int?, which defaults to null): set scope height. (default: 7)
o (of type float?, which defaults to null): set window opacity. (default: 0.5)
wx (of type float?, which defaults to null): set window x offset. (default: -1.)
wy (of type float?, which defaults to null): set window y offset. (default: -1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pp`

Ffmpeg filter: Filter video using libpostproc.

Type:

(?subfilters : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

subfilters (of type string?, which defaults to null): set postprocess subfilters. (default: de)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pp7`

Ffmpeg filter: Apply Postprocessing 7 filter.

Type:

(?qp : int?, ?mode : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

qp (of type int?, which defaults to null): force a constant quantizer parameter. (default: 0)
mode (of type int?, which defaults to null): set thresholding mode. (default: 2, possible values: 0 (hard), 1 (soft), 2 (medium))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.premultiply`

Ffmpeg filter: PreMultiply first stream with first plane of second stream. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?planes : int?, ?inplace : bool?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 15)
inplace (of type bool?, which defaults to null): enable inplace mode. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.prewitt`

Ffmpeg filter: Apply prewitt operator.

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.prewitt_opencl`

Ffmpeg filter: Apply prewitt operator

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.procamp_vaapi`

Ffmpeg filter: ProcAmp (color balance) adjustments for hue, saturation, brightness, contrast

Type:

(?b : float?, ?brightness : float?, ?s : float?,
 ?saturatio : float?, ?c : float?, ?contrast : float?,
 ?h : float?, ?hue : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

b (of type float?, which defaults to null): Output video brightness. (default: 0.)
brightness (of type float?, which defaults to null): Output video brightness. (default: 0.)
s (of type float?, which defaults to null): Output video saturation. (default: 1.)
saturatio (of type float?, which defaults to null): Output video saturation. (default: 1.)
c (of type float?, which defaults to null): Output video contrast. (default: 1.)
contrast (of type float?, which defaults to null): Output video contrast. (default: 1.)
h (of type float?, which defaults to null): Output video hue. (default: 0.)
hue (of type float?, which defaults to null): Output video hue. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.program_opencl`

Ffmpeg filter: Filter video using an OpenCL program

Type:

(?source : string?, ?kernel : string?, ?inputs : int?,
 ?size : string?, ?s : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

source (of type string?, which defaults to null): OpenCL program source file
kernel (of type string?, which defaults to null): Kernel name in program
inputs (of type int?, which defaults to null): Number of inputs. (default: 1)
size (of type string?, which defaults to null): Video size
s (of type string?, which defaults to null): Video size
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.pseudocolor`

Ffmpeg filter: Make pseudocolored video frames.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ?i : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: val)
c1 (of type string?, which defaults to null): set component #1 expression. (default: val)
c2 (of type string?, which defaults to null): set component #2 expression. (default: val)
c3 (of type string?, which defaults to null): set component #3 expression. (default: val)
i (of type int?, which defaults to null): set component as base. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.psnr`

Ffmpeg filter: Calculate the PSNR between two video streams.

Type:

(?stats_file : string?, ?f : string?,
 ?stats_version : int?, ?output_max : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

stats_file (of type string?, which defaults to null): Set file where to store per-frame difference information
f (of type string?, which defaults to null): Set file where to store per-frame difference information
stats_version (of type int?, which defaults to null): Set the format version for the stats file.. (default: 1)
output_max (of type bool?, which defaults to null): Add raw stats (max values) to the output log.. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.pullup`

Ffmpeg filter: Pullup from field sequence to frames.

Type:

(?jl : int?, ?jr : int?, ?jt : int?, ?jb : int?,
 ?sb : bool?, ?mp : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

jl (of type int?, which defaults to null): set left junk size. (default: 1)
jr (of type int?, which defaults to null): set right junk size. (default: 1)
jt (of type int?, which defaults to null): set top junk size. (default: 4)
jb (of type int?, which defaults to null): set bottom junk size. (default: 4)
sb (of type bool?, which defaults to null): set strict breaks. (default: false)
mp (of type int?, which defaults to null): set metric plane. (default: 0, possible values: 0 (y), 1 (u), 2 (v))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.qp`

Ffmpeg filter: Change video quantization parameters.

Type:

(?qp : string?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

qp (of type string?, which defaults to null): set qp expression
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.random`

Ffmpeg filter: Return random frames.

Type:

(?frames : int?, ?seed : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

frames (of type int?, which defaults to null): set number of frames in cache. (default: 30)
seed (of type int?, which defaults to null): set the seed. (default: -1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.readeia608`

Ffmpeg filter: Read EIA-608 Closed Caption codes from input video and write them to frame metadata.

Type:

(?scan_min : int?, ?scan_max : int?, ?mac : float?,
 ?spw : float?, ?mhd : float?, ?mpd : float?,
 ?msd : float?, ?bhd : float?, ?th_w : float?,
 ?th_b : float?, ?chp : bool?, ?lp : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

scan_min (of type int?, which defaults to null): set from which line to scan for codes. (default: 0)
scan_max (of type int?, which defaults to null): set to which line to scan for codes. (default: 29)
mac (of type float?, which defaults to null): set minimal acceptable amplitude change for sync codes detection. (default: 0.2)
spw (of type float?, which defaults to null): set ratio of width reserved for sync code detection. (default: 0.27)
mhd (of type float?, which defaults to null): set max peaks height difference for sync code detection. (default: 0.1)
mpd (of type float?, which defaults to null): set max peaks period difference for sync code detection. (default: 0.1)
msd (of type float?, which defaults to null): set first two max start code bits differences. (default: 0.02)
bhd (of type float?, which defaults to null): set min ratio of bits height compared to 3rd start code bit. (default: 0.75)
th_w (of type float?, which defaults to null): set white color threshold. (default: 0.35)
th_b (of type float?, which defaults to null): set black color threshold. (default: 0.15)
chp (of type bool?, which defaults to null): check and apply parity bit. (default: false)
lp (of type bool?, which defaults to null): lowpass line prior to processing. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.readvitc`

Ffmpeg filter: Read vertical interval timecode and write it to frame metadata.

Type:

(?scan_max : int?, ?thr_b : float?, ?thr_w : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

scan_max (of type int?, which defaults to null): maximum line numbers to scan for VITC data. (default: 45)
thr_b (of type float?, which defaults to null): black color threshold. (default: 0.2)
thr_w (of type float?, which defaults to null): white color threshold. (default: 0.6)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.realtime`

Ffmpeg filter: Slow down filtering to match realtime.

Type:

(?limit : int?, ?speed : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

limit (of type int?, which defaults to null): sleep time limit. (default: 2000000)
speed (of type float?, which defaults to null): speed factor. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.remap`

Ffmpeg filter: Remap pixels.

Type:

(?format : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

format (of type int?, which defaults to null): set output format. (default: 0, possible values: 0 (color), 1 (gray))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.removegrain`

Ffmpeg filter: Remove grain.

Type:

(?m0 : int?, ?m1 : int?, ?m2 : int?, ?m3 : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

m0 (of type int?, which defaults to null): set mode for 1st plane. (default: 0)
m1 (of type int?, which defaults to null): set mode for 2nd plane. (default: 0)
m2 (of type int?, which defaults to null): set mode for 3rd plane. (default: 0)
m3 (of type int?, which defaults to null): set mode for 4th plane. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.removelogo`

Ffmpeg filter: Remove a TV logo based on a mask image.

Type:

(?filename : string?, ?f : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

filename (of type string?, which defaults to null): set bitmap filename
f (of type string?, which defaults to null): set bitmap filename
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.repeatfields`

Ffmpeg filter: Hard repeat fields based on MPEG repeat field flag.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.replaygain`

Ffmpeg filter: ReplayGain scanner.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.reverse`

Ffmpeg filter: Reverse a clip.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.rgbashift`

Ffmpeg filter: Shift RGBA.

Type:

(?rh : int?, ?rv : int?, ?gh : int?, ?gv : int?,
 ?bh : int?, ?bv : int?, ?ah : int?, ?av : int?,
 ?edge : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

rh (of type int?, which defaults to null): shift red horizontally. (default: 0)
rv (of type int?, which defaults to null): shift red vertically. (default: 0)
gh (of type int?, which defaults to null): shift green horizontally. (default: 0)
gv (of type int?, which defaults to null): shift green vertically. (default: 0)
bh (of type int?, which defaults to null): shift blue horizontally. (default: 0)
bv (of type int?, which defaults to null): shift blue vertically. (default: 0)
ah (of type int?, which defaults to null): shift alpha horizontally. (default: 0)
av (of type int?, which defaults to null): shift alpha vertically. (default: 0)
edge (of type int?, which defaults to null): set edge operation. (default: 0, possible values: 0 (smear), 1 (wrap))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.rgbtestsrc`

Ffmpeg filter: Generate RGB test pattern.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.roberts`

Ffmpeg filter: Apply roberts cross operator.

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.roberts_opencl`

Ffmpeg filter: Apply roberts operator

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.rotate`

Ffmpeg filter: Rotate the input image.

Type:

(?angle : string?, ?a : string?, ?out_w : string?,
 ?ow : string?, ?out_h : string?, ?oh : string?,
 ?fillcolor : string?, ?c : string?, ?bilinear : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

angle (of type string?, which defaults to null): set angle (in radians). (default: 0)
a (of type string?, which defaults to null): set angle (in radians). (default: 0)
out_w (of type string?, which defaults to null): set output width expression. (default: iw)
ow (of type string?, which defaults to null): set output width expression. (default: iw)
out_h (of type string?, which defaults to null): set output height expression. (default: ih)
oh (of type string?, which defaults to null): set output height expression. (default: ih)
fillcolor (of type string?, which defaults to null): set background fill color. (default: black)
c (of type string?, which defaults to null): set background fill color. (default: black)
bilinear (of type bool?, which defaults to null): use bilinear interpolation. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.rubberband`

Ffmpeg filter: Apply time-stretching and pitch-shifting.

Type:

(?tempo : float?, ?pitch : float?, ?transients : int?,
 ?detector : int?, ?phase : int?, ?window : int?,
 ?smoothing : int?, ?formant : int?, ?pitchq : int?,
 ?channels : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

tempo (of type float?, which defaults to null): set tempo scale factor. (default: 1.)
pitch (of type float?, which defaults to null): set pitch scale factor. (default: 1.)
transients (of type int?, which defaults to null): set transients. (default: 0, possible values: 0 (crisp), 256 (mixed), 512 (smooth))
detector (of type int?, which defaults to null): set detector. (default: 0, possible values: 0 (compound), 1024 (percussive), 2048 (soft))
phase (of type int?, which defaults to null): set phase. (default: 0, possible values: 0 (laminar), 8192 (independent))
window (of type int?, which defaults to null): set window. (default: 0, possible values: 0 (standard), 1048576 (short), 2097152 (long))
smoothing (of type int?, which defaults to null): set smoothing. (default: 0, possible values: 0 (off), 8388608 (on))
formant (of type int?, which defaults to null): set formant. (default: 0, possible values: 0 (shifted), 16777216 (preserved))
pitchq (of type int?, which defaults to null): set pitch quality. (default: 0, possible values: 0 (quality), 33554432 (speed), 67108864 (consistency))
channels (of type int?, which defaults to null): set channels. (default: 0, possible values: 0 (apart), 268435456 (together))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.sab`

Ffmpeg filter: Apply shape adaptive blur.

Type:

(?luma_radius : float?, ?lr : float?,
 ?luma_pre_filter_radius : float?, ?lpfr : float?,
 ?luma_strength : float?, ?ls : float?,
 ?chroma_radius : float?, ?cr : float?,
 ?chroma_pre_filter_radius : float?, ?cpfr : float?,
 ?chroma_strength : float?, ?cs : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_radius (of type float?, which defaults to null): set luma radius. (default: 1.)
lr (of type float?, which defaults to null): set luma radius. (default: 1.)
luma_pre_filter_radius (of type float?, which defaults to null): set luma pre-filter radius. (default: 1.)
lpfr (of type float?, which defaults to null): set luma pre-filter radius. (default: 1.)
luma_strength (of type float?, which defaults to null): set luma strength. (default: 1.)
ls (of type float?, which defaults to null): set luma strength. (default: 1.)
chroma_radius (of type float?, which defaults to null): set chroma radius. (default: -0.9)
cr (of type float?, which defaults to null): set chroma radius. (default: -0.9)
chroma_pre_filter_radius (of type float?, which defaults to null): set chroma pre-filter radius. (default: -0.9)
cpfr (of type float?, which defaults to null): set chroma pre-filter radius. (default: -0.9)
chroma_strength (of type float?, which defaults to null): set chroma strength. (default: -0.9)
cs (of type float?, which defaults to null): set chroma strength. (default: -0.9)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.scale`

Ffmpeg filter: Scale the input video size and/or convert the image format.

Type:

(?w : string?, ?width : string?, ?h : string?,
 ?height : string?, ?flags : string?, ?interl : bool?,
 ?size : string?, ?s : string?,
 ?in_color_matrix : string?, ?out_color_matrix : string?,
 ?in_range : int?, ?out_range : int?,
 ?in_v_chr_pos : int?, ?in_h_chr_pos : int?,
 ?out_v_chr_pos : int?, ?out_h_chr_pos : int?,
 ?force_original_aspect_ratio : int?, ?param0 : float?,
 ?param1 : float?, ?nb_slices : int?, ?eval : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

w (of type string?, which defaults to null): Output video width
width (of type string?, which defaults to null): Output video width
h (of type string?, which defaults to null): Output video height
height (of type string?, which defaults to null): Output video height
flags (of type string?, which defaults to null): Flags to pass to libswscale. (default: bilinear)
interl (of type bool?, which defaults to null): set interlacing. (default: false)
size (of type string?, which defaults to null): set video size
s (of type string?, which defaults to null): set video size
in_color_matrix (of type string?, which defaults to null): set input YCbCr type. (default: auto, possible values: auto (auto), bt601 (bt601), bt470 (bt470), smpte170m (smpte170m), bt709 (bt709), fcc (fcc), smpte240m (smpte240m), bt2020 (bt2020))
out_color_matrix (of type string?, which defaults to null): set output YCbCr type. (possible values: auto (auto), bt601 (bt601), bt470 (bt470), smpte170m (smpte170m), bt709 (bt709), fcc (fcc), smpte240m (smpte240m), bt2020 (bt2020))
in_range (of type int?, which defaults to null): set input color range. (default: 0, possible values: 0 (auto), 0 (unknown), 2 (full), 1 (limited), 2 (jpeg), 1 (mpeg), 1 (tv), 2 (pc))
out_range (of type int?, which defaults to null): set output color range. (default: 0, possible values: 0 (auto), 0 (unknown), 2 (full), 1 (limited), 2 (jpeg), 1 (mpeg), 1 (tv), 2 (pc))
in_v_chr_pos (of type int?, which defaults to null): input vertical chroma position in luma grid/256. (default: -513)
in_h_chr_pos (of type int?, which defaults to null): input horizontal chroma position in luma grid/256. (default: -513)
out_v_chr_pos (of type int?, which defaults to null): output vertical chroma position in luma grid/256. (default: -513)
out_h_chr_pos (of type int?, which defaults to null): output horizontal chroma position in luma grid/256. (default: -513)
force_original_aspect_ratio (of type int?, which defaults to null): decrease or increase w/h if necessary to keep the original AR. (default: 0, possible values: 0 (disable), 1 (decrease), 2 (increase))
param0 (of type float?, which defaults to null): Scaler param 0. (default: 123456.)
param1 (of type float?, which defaults to null): Scaler param 1. (default: 123456.)
nb_slices (of type int?, which defaults to null): set the number of slices (debug purpose only). (default: 0)
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.scale2ref`

Ffmpeg filter: Scale the input video size and/or convert the image format to the given reference.

Type:

(?w : string?, ?width : string?, ?h : string?,
 ?height : string?, ?flags : string?, ?interl : bool?,
 ?size : string?, ?s : string?,
 ?in_color_matrix : string?, ?out_color_matrix : string?,
 ?in_range : int?, ?out_range : int?,
 ?in_v_chr_pos : int?, ?in_h_chr_pos : int?,
 ?out_v_chr_pos : int?, ?out_h_chr_pos : int?,
 ?force_original_aspect_ratio : int?, ?param0 : float?,
 ?param1 : float?, ?nb_slices : int?, ?eval : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) ->
ffmpeg.filter.video * ffmpeg.filter.video

Arguments:

w (of type string?, which defaults to null): Output video width
width (of type string?, which defaults to null): Output video width
h (of type string?, which defaults to null): Output video height
height (of type string?, which defaults to null): Output video height
flags (of type string?, which defaults to null): Flags to pass to libswscale. (default: bilinear)
interl (of type bool?, which defaults to null): set interlacing. (default: false)
size (of type string?, which defaults to null): set video size
s (of type string?, which defaults to null): set video size
in_color_matrix (of type string?, which defaults to null): set input YCbCr type. (default: auto, possible values: auto (auto), bt601 (bt601), bt470 (bt470), smpte170m (smpte170m), bt709 (bt709), fcc (fcc), smpte240m (smpte240m), bt2020 (bt2020))
out_color_matrix (of type string?, which defaults to null): set output YCbCr type. (possible values: auto (auto), bt601 (bt601), bt470 (bt470), smpte170m (smpte170m), bt709 (bt709), fcc (fcc), smpte240m (smpte240m), bt2020 (bt2020))
in_range (of type int?, which defaults to null): set input color range. (default: 0, possible values: 0 (auto), 0 (unknown), 2 (full), 1 (limited), 2 (jpeg), 1 (mpeg), 1 (tv), 2 (pc))
out_range (of type int?, which defaults to null): set output color range. (default: 0, possible values: 0 (auto), 0 (unknown), 2 (full), 1 (limited), 2 (jpeg), 1 (mpeg), 1 (tv), 2 (pc))
in_v_chr_pos (of type int?, which defaults to null): input vertical chroma position in luma grid/256. (default: -513)
in_h_chr_pos (of type int?, which defaults to null): input horizontal chroma position in luma grid/256. (default: -513)
out_v_chr_pos (of type int?, which defaults to null): output vertical chroma position in luma grid/256. (default: -513)
out_h_chr_pos (of type int?, which defaults to null): output horizontal chroma position in luma grid/256. (default: -513)
force_original_aspect_ratio (of type int?, which defaults to null): decrease or increase w/h if necessary to keep the original AR. (default: 0, possible values: 0 (disable), 1 (decrease), 2 (increase))
param0 (of type float?, which defaults to null): Scaler param 0. (default: 123456.)
param1 (of type float?, which defaults to null): Scaler param 1. (default: 123456.)
nb_slices (of type int?, which defaults to null): set the number of slices (debug purpose only). (default: 0)
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.scale_vaapi`

Ffmpeg filter: Scale to/from VAAPI surfaces.

Type:

(?w : string?, ?h : string?, ?format : string?,
 ?mode : int?, ?out_color_matrix : string?,
 ?out_range : int?, ?out_color_primaries : string?,
 ?out_color_transfer : string?,
 ?out_chroma_location : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

w (of type string?, which defaults to null): Output video width. (default: iw)
h (of type string?, which defaults to null): Output video height. (default: ih)
format (of type string?, which defaults to null): Output video format (software format of hardware frames)
mode (of type int?, which defaults to null): Scaling mode. (default: 512, possible values: 0 (default), 256 (fast), 512 (hq), 768 (nl_anamorphic))
out_color_matrix (of type string?, which defaults to null): Output colour matrix coefficient set
out_range (of type int?, which defaults to null): Output colour range. (default: 0, possible values: 2 (full), 1 (limited), 2 (jpeg), 1 (mpeg), 1 (tv), 2 (pc))
out_color_primaries (of type string?, which defaults to null): Output colour primaries
out_color_transfer (of type string?, which defaults to null): Output colour transfer characteristics
out_chroma_location (of type string?, which defaults to null): Output chroma sample location
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.select`

Ffmpeg filter: Select video frames to pass in output. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?expr : string?, ?e : string?, ?outputs : int?,
 ?n : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

expr (of type string?, which defaults to null): set an expression to use for selecting frames. (default: 1)
e (of type string?, which defaults to null): set an expression to use for selecting frames. (default: 1)
outputs (of type int?, which defaults to null): set the number of outputs. (default: 1)
n (of type int?, which defaults to null): set the number of outputs. (default: 1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.selectivecolor`

Ffmpeg filter: Apply CMYK adjustments to specific color ranges.

Type:

(?correction_method : int?, ?reds : string?,
 ?yellows : string?, ?greens : string?, ?cyans : string?,
 ?blues : string?, ?magentas : string?,
 ?whites : string?, ?neutrals : string?,
 ?blacks : string?, ?psfile : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

correction_method (of type int?, which defaults to null): select correction method. (default: 0, possible values: 0 (absolute), 1 (relative))
reds (of type string?, which defaults to null): adjust red regions
yellows (of type string?, which defaults to null): adjust yellow regions
greens (of type string?, which defaults to null): adjust green regions
cyans (of type string?, which defaults to null): adjust cyan regions
blues (of type string?, which defaults to null): adjust blue regions
magentas (of type string?, which defaults to null): adjust magenta regions
whites (of type string?, which defaults to null): adjust white regions
neutrals (of type string?, which defaults to null): adjust neutral regions
blacks (of type string?, which defaults to null): adjust black regions
psfile (of type string?, which defaults to null): set Photoshop selectivecolor file name
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sendcmd`

Ffmpeg filter: Send commands to filters.

Type:

(?commands : string?, ?c : string?, ?filename : string?,
 ?f : string?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

commands (of type string?, which defaults to null): set commands
c (of type string?, which defaults to null): set commands
filename (of type string?, which defaults to null): set commands file
f (of type string?, which defaults to null): set commands file
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.separatefields`

Ffmpeg filter: Split input video frames into fields.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setdar`

Ffmpeg filter: Set the frame display aspect ratio.

Type:

(?dar : string?, ?ratio : string?, ?r : string?,
 ?max : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

dar (of type string?, which defaults to null): set display aspect ratio. (default: 0)
ratio (of type string?, which defaults to null): set display aspect ratio. (default: 0)
r (of type string?, which defaults to null): set display aspect ratio. (default: 0)
max (of type int?, which defaults to null): set max value for nominator or denominator in the ratio. (default: 100)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setfield`

Ffmpeg filter: Force field for the output video frame.

Type:

(?mode : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): select interlace mode. (default: -1, possible values: -1 (auto), 0 (bff), 1 (tff), 2 (prog))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setparams`

Ffmpeg filter: Force field, or color property for the output video frame.

Type:

(?field_mode : int?, ?range : int?,
 ?color_primaries : int?, ?color_trc : int?,
 ?colorspace : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

field_mode (of type int?, which defaults to null): select interlace mode. (default: -1, possible values: -1 (auto), 0 (bff), 1 (tff), 2 (prog))
range (of type int?, which defaults to null): select color range. (default: -1, possible values: -1 (auto), 0 (unspecified), 0 (unknown), 1 (limited), 1 (tv), 1 (mpeg), 2 (full), 2 (pc), 2 (jpeg))
color_primaries (of type int?, which defaults to null): select color primaries. (default: -1, possible values: -1 (auto), 1 (bt709), 2 (unknown), 4 (bt470m), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 8 (film), 9 (bt2020), 10 (smpte428), 11 (smpte431), 12 (smpte432), 22 (jedec-p22))
color_trc (of type int?, which defaults to null): select color transfer. (default: -1, possible values: -1 (auto), 1 (bt709), 2 (unknown), 4 (bt470m), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 8 (linear), 9 (log100), 10 (log316), 11 (iec61966-2-4), 12 (bt1361e), 13 (iec61966-2-1), 14 (bt2020-10), 15 (bt2020-12), 16 (smpte2084), 17 (smpte428), 18 (arib-std-b67))
colorspace (of type int?, which defaults to null): select colorspace. (default: -1, possible values: -1 (auto), 0 (gbr), 1 (bt709), 2 (unknown), 4 (fcc), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 8 (ycgco), 9 (bt2020nc), 10 (bt2020c), 11 (smpte2085), 12 (chroma-derived-nc), 13 (chroma-derived-c), 14 (ictcp))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setpts`

Ffmpeg filter: Set PTS for the output video frame.

Type:

(?expr : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

expr (of type string?, which defaults to null): Expression determining the frame timestamp. (default: PTS)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setrange`

Ffmpeg filter: Force color range for the output video frame.

Type:

(?range : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

range (of type int?, which defaults to null): select color range. (default: -1, possible values: -1 (auto), 0 (unspecified), 0 (unknown), 1 (limited), 1 (tv), 1 (mpeg), 2 (full), 2 (pc), 2 (jpeg))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.setsar`

Ffmpeg filter: Set the pixel sample aspect ratio.

Type:

(?sar : string?, ?ratio : string?, ?r : string?,
 ?max : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

sar (of type string?, which defaults to null): set sample (pixel) aspect ratio. (default: 0)
ratio (of type string?, which defaults to null): set sample (pixel) aspect ratio. (default: 0)
r (of type string?, which defaults to null): set sample (pixel) aspect ratio. (default: 0)
max (of type int?, which defaults to null): set max value for nominator or denominator in the ratio. (default: 100)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.settb`

Ffmpeg filter: Set timebase for the video output link.

Type:

(?expr : string?, ?tb : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

expr (of type string?, which defaults to null): set expression determining the output timebase. (default: intb)
tb (of type string?, which defaults to null): set expression determining the output timebase. (default: intb)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sharpness_vaapi`

Ffmpeg filter: VAAPI VPP for sharpness

Type:

(?sharpness : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

sharpness (of type int?, which defaults to null): sharpness level. (default: 44)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.showcqt`

Ffmpeg filter: Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output.

Type:

(?size : string?, ?s : string?, ?fps : string?,
 ?rate : string?, ?r : string?, ?bar_h : int?,
 ?axis_h : int?, ?sono_h : int?, ?fullhd : bool?,
 ?sono_v : string?, ?volume : string?, ?bar_v : string?,
 ?volume2 : string?, ?sono_g : float?, ?gamma : float?,
 ?bar_g : float?, ?gamma2 : float?, ?bar_t : float?,
 ?timeclamp : float?, ?tc : float?, ?attack : float?,
 ?basefreq : float?, ?endfreq : float?,
 ?coeffclamp : float?, ?tlength : string?, ?count : int?,
 ?fcount : int?, ?fontfile : string?, ?font : string?,
 ?fontcolor : string?, ?axisfile : string?,
 ?axis : bool?, ?text : bool?, ?csp : int?,
 ?cscheme : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 1920x1080)
s (of type string?, which defaults to null): set video size. (default: 1920x1080)
fps (of type string?, which defaults to null): set video rate. (default: 25)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
bar_h (of type int?, which defaults to null): set bargraph height. (default: -1)
axis_h (of type int?, which defaults to null): set axis height. (default: -1)
sono_h (of type int?, which defaults to null): set sonogram height. (default: -1)
fullhd (of type bool?, which defaults to null): set fullhd size. (default: true)
sono_v (of type string?, which defaults to null): set sonogram volume. (default: 16)
volume (of type string?, which defaults to null): set sonogram volume. (default: 16)
bar_v (of type string?, which defaults to null): set bargraph volume. (default: sono_v)
volume2 (of type string?, which defaults to null): set bargraph volume. (default: sono_v)
sono_g (of type float?, which defaults to null): set sonogram gamma. (default: 3.)
gamma (of type float?, which defaults to null): set sonogram gamma. (default: 3.)
bar_g (of type float?, which defaults to null): set bargraph gamma. (default: 1.)
gamma2 (of type float?, which defaults to null): set bargraph gamma. (default: 1.)
bar_t (of type float?, which defaults to null): set bar transparency. (default: 1.)
timeclamp (of type float?, which defaults to null): set timeclamp. (default: 0.17)
tc (of type float?, which defaults to null): set timeclamp. (default: 0.17)
attack (of type float?, which defaults to null): set attack time. (default: 0.)
basefreq (of type float?, which defaults to null): set base frequency. (default: 20.0152312641)
endfreq (of type float?, which defaults to null): set end frequency. (default: 20495.5968144)
coeffclamp (of type float?, which defaults to null): set coeffclamp. (default: 1.)
tlength (of type string?, which defaults to null): set tlength. (default: 384tc/(384+tcf))
count (of type int?, which defaults to null): set transform count. (default: 6)
fcount (of type int?, which defaults to null): set frequency count. (default: 0)
fontfile (of type string?, which defaults to null): set axis font file
font (of type string?, which defaults to null): set axis font
fontcolor (of type string?, which defaults to null): set font color. (default: st(0, (midi(f)-59.5)/12);st(1, if(between(ld(0),0,1), 0.5-0.5cos(2PI*ld(0)), 0));r(1-ld(1)) + b(ld(1)))
axisfile (of type string?, which defaults to null): set axis image
axis (of type bool?, which defaults to null): draw axis. (default: true)
text (of type bool?, which defaults to null): draw axis. (default: true)
csp (of type int?, which defaults to null): set color space. (default: 2, possible values: 2 (unspecified), 1 (bt709), 4 (fcc), 5 (bt470bg), 6 (smpte170m), 7 (smpte240m), 9 (bt2020ncl))
cscheme (of type string?, which defaults to null): set color scheme. (default: 1|0.5|0|0|0.5|1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showfreqs`

Ffmpeg filter: Convert input audio to a frequencies video output.

Type:

(?size : string?, ?s : string?, ?mode : int?,
 ?ascale : int?, ?fscale : int?, ?win_size : int?,
 ?win_func : int?, ?overlap : float?, ?averaging : int?,
 ?colors : string?, ?cmode : int?, ?minamp : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 1024x512)
s (of type string?, which defaults to null): set video size. (default: 1024x512)
mode (of type int?, which defaults to null): set display mode. (default: 1, possible values: 0 (line), 1 (bar), 2 (dot))
ascale (of type int?, which defaults to null): set amplitude scale. (default: 3, possible values: 0 (lin), 1 (sqrt), 2 (cbrt), 3 (log))
fscale (of type int?, which defaults to null): set frequency scale. (default: 0, possible values: 0 (lin), 1 (log), 2 (rlog))
win_size (of type int?, which defaults to null): set window size. (default: 2048)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
overlap (of type float?, which defaults to null): set window overlap. (default: 1.)
averaging (of type int?, which defaults to null): set time averaging. (default: 1)
colors (of type string?, which defaults to null): set channels colors. (default: red|green|blue|yellow|orange|lime|pink|magenta|brown)
cmode (of type int?, which defaults to null): set channel mode. (default: 0, possible values: 0 (combined), 1 (separate))
minamp (of type float?, which defaults to null): set minimum amplitude. (default: 1e-06)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showinfo`

Ffmpeg filter: Show textual information for each video frame.

Type:

(?checksum : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

checksum (of type bool?, which defaults to null): calculate checksums. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.showpalette`

Ffmpeg filter: Display frame palette.

Type:

(?s : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

s (of type int?, which defaults to null): set pixel box size. (default: 30)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.showspatial`

Ffmpeg filter: Convert input audio to a spatial video output.

Type:

(?size : string?, ?s : string?, ?win_size : int?,
 ?win_func : int?, ?overlap : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 512x512)
s (of type string?, which defaults to null): set video size. (default: 512x512)
win_size (of type int?, which defaults to null): set window size. (default: 4096)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
overlap (of type float?, which defaults to null): set window overlap. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showspectrum`

Ffmpeg filter: Convert input audio to a spectrum video output.

Type:

(?size : string?, ?s : string?, ?slide : int?,
 ?mode : int?, ?color : int?, ?scale : int?,
 ?fscale : int?, ?saturation : float?, ?win_func : int?,
 ?orientation : int?, ?overlap : float?, ?gain : float?,
 ?data : int?, ?rotation : float?, ?start : int?,
 ?stop : int?, ?fps : string?, ?legend : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 640x512)
s (of type string?, which defaults to null): set video size. (default: 640x512)
slide (of type int?, which defaults to null): set sliding mode. (default: 0, possible values: 0 (replace), 1 (scroll), 2 (fullframe), 3 (rscroll))
mode (of type int?, which defaults to null): set channel display mode. (default: 0, possible values: 0 (combined), 1 (separate))
color (of type int?, which defaults to null): set channel coloring. (default: 0, possible values: 0 (channel), 1 (intensity), 2 (rainbow), 3 (moreland), 4 (nebulae), 5 (fire), 6 (fiery), 7 (fruit), 8 (cool), 9 (magma), 10 (green), 11 (viridis), 12 (plasma), 13 (cividis), 14 (terrain))
scale (of type int?, which defaults to null): set display scale. (default: 1, possible values: 0 (lin), 1 (sqrt), 2 (cbrt), 3 (log), 4 (4thrt), 5 (5thrt))
fscale (of type int?, which defaults to null): set frequency scale. (default: 0, possible values: 0 (lin), 1 (log))
saturation (of type float?, which defaults to null): color saturation multiplier. (default: 1.)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
orientation (of type int?, which defaults to null): set orientation. (default: 0, possible values: 0 (vertical), 1 (horizontal))
overlap (of type float?, which defaults to null): set window overlap. (default: 0.)
gain (of type float?, which defaults to null): set scale gain. (default: 1.)
data (of type int?, which defaults to null): set data mode. (default: 0, possible values: 0 (magnitude), 1 (phase))
rotation (of type float?, which defaults to null): color rotation. (default: 0.)
start (of type int?, which defaults to null): start frequency. (default: 0)
stop (of type int?, which defaults to null): stop frequency. (default: 0)
fps (of type string?, which defaults to null): set video rate. (default: auto)
legend (of type bool?, which defaults to null): draw legend. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showspectrumpic`

Ffmpeg filter: Convert input audio to a spectrum video output single picture.

Type:

(?size : string?, ?s : string?, ?mode : int?,
 ?color : int?, ?scale : int?, ?fscale : int?,
 ?saturation : float?, ?win_func : int?,
 ?orientation : int?, ?gain : float?, ?legend : bool?,
 ?rotation : float?, ?start : int?, ?stop : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 4096x2048)
s (of type string?, which defaults to null): set video size. (default: 4096x2048)
mode (of type int?, which defaults to null): set channel display mode. (default: 0, possible values: 0 (combined), 1 (separate))
color (of type int?, which defaults to null): set channel coloring. (default: 1, possible values: 0 (channel), 1 (intensity), 2 (rainbow), 3 (moreland), 4 (nebulae), 5 (fire), 6 (fiery), 7 (fruit), 8 (cool), 9 (magma), 10 (green), 11 (viridis), 12 (plasma), 13 (cividis), 14 (terrain))
scale (of type int?, which defaults to null): set display scale. (default: 3, possible values: 0 (lin), 1 (sqrt), 2 (cbrt), 3 (log), 4 (4thrt), 5 (5thrt))
fscale (of type int?, which defaults to null): set frequency scale. (default: 0, possible values: 0 (lin), 1 (log))
saturation (of type float?, which defaults to null): color saturation multiplier. (default: 1.)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
orientation (of type int?, which defaults to null): set orientation. (default: 0, possible values: 0 (vertical), 1 (horizontal))
gain (of type float?, which defaults to null): set scale gain. (default: 1.)
legend (of type bool?, which defaults to null): draw legend. (default: true)
rotation (of type float?, which defaults to null): color rotation. (default: 0.)
start (of type int?, which defaults to null): start frequency. (default: 0)
stop (of type int?, which defaults to null): stop frequency. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showvolume`

Ffmpeg filter: Convert input audio volume to video output.

Type:

(?rate : string?, ?r : string?, ?b : int?, ?w : int?,
 ?h : int?, ?f : float?, ?c : string?, ?t : bool?,
 ?v : bool?, ?dm : float?, ?dmc : string?, ?o : int?,
 ?s : int?, ?p : float?, ?m : int?, ?ds : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
b (of type int?, which defaults to null): set border width. (default: 1)
w (of type int?, which defaults to null): set channel width. (default: 400)
h (of type int?, which defaults to null): set channel height. (default: 20)
f (of type float?, which defaults to null): set fade. (default: 0.95)
c (of type string?, which defaults to null): set volume color expression. (default: PEAK255+floor((1-PEAK)255)*256+0xff000000)
t (of type bool?, which defaults to null): display channel names. (default: true)
v (of type bool?, which defaults to null): display volume value. (default: true)
dm (of type float?, which defaults to null): duration for max value display. (default: 0.)
dmc (of type string?, which defaults to null): set color of the max value line. (default: orange)
o (of type int?, which defaults to null): set orientation. (default: 0, possible values: 0 (h), 1 (v))
s (of type int?, which defaults to null): set step size. (default: 0)
p (of type float?, which defaults to null): set background opacity. (default: 0.)
m (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (p), 1 (r))
ds (of type int?, which defaults to null): set display scale. (default: 0, possible values: 0 (lin), 1 (log))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showwaves`

Ffmpeg filter: Convert input audio to a video output.

Type:

(?size : string?, ?s : string?, ?mode : int?, ?n : int?,
 ?rate : string?, ?r : string?, ?split_channels : bool?,
 ?colors : string?, ?scale : int?, ?draw : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 600x240)
s (of type string?, which defaults to null): set video size. (default: 600x240)
mode (of type int?, which defaults to null): select display mode. (default: 0, possible values: 0 (point), 1 (line), 2 (p2p), 3 (cline))
n (of type int?, which defaults to null): set how many samples to show in the same point. (default: 0)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
split_channels (of type bool?, which defaults to null): draw channels separately. (default: false)
colors (of type string?, which defaults to null): set channels colors. (default: red|green|blue|yellow|orange|lime|pink|magenta|brown)
scale (of type int?, which defaults to null): set amplitude scale. (default: 0, possible values: 0 (lin), 1 (log), 2 (sqrt), 3 (cbrt))
draw (of type int?, which defaults to null): set draw mode. (default: 0, possible values: 0 (scale), 1 (full))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.showwavespic`

Ffmpeg filter: Convert input audio to a video output single picture.

Type:

(?size : string?, ?s : string?, ?split_channels : bool?,
 ?colors : string?, ?scale : int?, ?draw : int?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 600x240)
s (of type string?, which defaults to null): set video size. (default: 600x240)
split_channels (of type bool?, which defaults to null): draw channels separately. (default: false)
colors (of type string?, which defaults to null): set channels colors. (default: red|green|blue|yellow|orange|lime|pink|magenta|brown)
scale (of type int?, which defaults to null): set amplitude scale. (default: 0, possible values: 0 (lin), 1 (log), 2 (sqrt), 3 (cbrt))
draw (of type int?, which defaults to null): set draw mode. (default: 0, possible values: 0 (scale), 1 (full))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.shuffleframes`

Ffmpeg filter: Shuffle video frames.

Type:

(?mapping : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mapping (of type string?, which defaults to null): set destination indexes of input frames. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.shuffleplanes`

Ffmpeg filter: Shuffle video planes.

Type:

(?map0 : int?, ?map1 : int?, ?map2 : int?, ?map3 : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

map0 (of type int?, which defaults to null): Index of the input plane to be used as the first output plane . (default: 0)
map1 (of type int?, which defaults to null): Index of the input plane to be used as the second output plane . (default: 1)
map2 (of type int?, which defaults to null): Index of the input plane to be used as the third output plane . (default: 2)
map3 (of type int?, which defaults to null): Index of the input plane to be used as the fourth output plane . (default: 3)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sidechaincompress`

Ffmpeg filter: Sidechain compressor.

Type:

(?level_in : float?, ?mode : int?, ?threshold : float?,
 ?ratio : float?, ?attack : float?, ?release : float?,
 ?makeup : float?, ?knee : float?, ?link : int?,
 ?detection : int?, ?level_sc : float?, ?mix : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input gain. (default: 1.)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (downward), 1 (upward))
threshold (of type float?, which defaults to null): set threshold. (default: 0.125)
ratio (of type float?, which defaults to null): set ratio. (default: 2.)
attack (of type float?, which defaults to null): set attack. (default: 20.)
release (of type float?, which defaults to null): set release. (default: 250.)
makeup (of type float?, which defaults to null): set make up gain. (default: 1.)
knee (of type float?, which defaults to null): set knee. (default: 2.82843)
link (of type int?, which defaults to null): set link type. (default: 0, possible values: 0 (average), 1 (maximum))
detection (of type int?, which defaults to null): set detection. (default: 1, possible values: 0 (peak), 1 (rms))
level_sc (of type float?, which defaults to null): set sidechain gain. (default: 1.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.sidechaingate`

Ffmpeg filter: Audio sidechain gate.

Type:

(?level_in : float?, ?mode : int?, ?range : float?,
 ?threshold : float?, ?ratio : float?, ?attack : float?,
 ?release : float?, ?makeup : float?, ?knee : float?,
 ?detection : int?, ?link : int?, ?level_sc : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set input level. (default: 1.)
mode (of type int?, which defaults to null): set mode. (default: 0, possible values: 0 (downward), 1 (upward))
range (of type float?, which defaults to null): set max gain reduction. (default: 0.06125)
threshold (of type float?, which defaults to null): set threshold. (default: 0.125)
ratio (of type float?, which defaults to null): set ratio. (default: 2.)
attack (of type float?, which defaults to null): set attack. (default: 20.)
release (of type float?, which defaults to null): set release. (default: 250.)
makeup (of type float?, which defaults to null): set makeup gain. (default: 1.)
knee (of type float?, which defaults to null): set knee. (default: 2.828427125)
detection (of type int?, which defaults to null): set detection. (default: 1, possible values: 0 (peak), 1 (rms))
link (of type int?, which defaults to null): set link. (default: 0, possible values: 0 (average), 1 (maximum))
level_sc (of type float?, which defaults to null): set sidechain gain. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.sidedata`

Ffmpeg filter: Manipulate video frame side data.

Type:

(?mode : int?, ?type : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set a mode of operation. (default: 0, possible values: 0 (select), 1 (delete))
type (of type int?, which defaults to null): set side data type. (default: -1, possible values: 0 (PANSCAN), 1 (A53_CC), 2 (STEREO3D), 3 (MATRIXENCODING), 4 (DOWNMIX_INFO), 5 (REPLAYGAIN), 6 (DISPLAYMATRIX), 7 (AFD), 8 (MOTION_VECTORS), 9 (SKIP_SAMPLES), 10 (AUDIO_SERVICE_TYPE), 11 (MASTERING_DISPLAY_METADATA), 12 (GOP_TIMECODE), 13 (SPHERICAL), 14 (CONTENT_LIGHT_LEVEL), 15 (ICC_PROFILE), 16 (QP_TABLE_PROPERTIES), 17 (QP_TABLE_DATA), 18 (S12M_TIMECOD), 19 (DYNAMIC_HDR_PLUS), 20 (REGIONS_OF_INTEREST))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.signalstats`

Ffmpeg filter: Generate statistics from video analysis.

Type:

(?stat : int?, ?out : int?, ?c : string?,
 ?color : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

stat (of type int?, which defaults to null): set statistics filters. (default: 0, possible values: 1 (tout), 2 (vrep), 4 (brng))
out (of type int?, which defaults to null): set video filter. (default: -1, possible values: 0 (tout), 1 (vrep), 2 (brng))
c (of type string?, which defaults to null): set highlight color. (default: yellow)
color (of type string?, which defaults to null): set highlight color. (default: yellow)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.signature`

Ffmpeg filter: Calculate the MPEG-7 video signature This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?detectmode : int?, ?nb_inputs : int?,
 ?filename : string?, ?format : int?, ?th_d : int?,
 ?th_dc : int?, ?th_xh : int?, ?th_di : int?,
 ?th_it : float?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

detectmode (of type int?, which defaults to null): set the detectmode. (default: 0, possible values: 0 (off), 1 (full), 2 (fast))
nb_inputs (of type int?, which defaults to null): number of inputs. (default: 1)
filename (of type string?, which defaults to null): filename for output files. (default: )
format (of type int?, which defaults to null): set output format. (default: 0, possible values: 0 (binary), 1 (xml))
th_d (of type int?, which defaults to null): threshold to detect one word as similar. (default: 9000)
th_dc (of type int?, which defaults to null): threshold to detect all words as similar. (default: 60000)
th_xh (of type int?, which defaults to null): threshold to detect frames as similar. (default: 116)
th_di (of type int?, which defaults to null): minimum length of matching sequence in frames. (default: 0)
th_it (of type float?, which defaults to null): threshold for relation of good to all frames. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.silencedetect`

Ffmpeg filter: Detect silence.

Type:

(?n : float?, ?noise : float?, ?d : float?,
 ?duration : float?, ?mono : bool?, ?m : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

n (of type float?, which defaults to null): set noise tolerance. (default: 0.001)
noise (of type float?, which defaults to null): set noise tolerance. (default: 0.001)
d (of type float?, which defaults to null): set minimum duration in seconds. (default: 2.)
duration (of type float?, which defaults to null): set minimum duration in seconds. (default: 2.)
mono (of type bool?, which defaults to null): check each channel separately. (default: false)
m (of type bool?, which defaults to null): check each channel separately. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.silenceremove`

Ffmpeg filter: Remove silence.

Type:

(?start_periods : int?, ?start_duration : int?,
 ?start_threshold : float?, ?start_silence : int?,
 ?start_mode : int?, ?stop_periods : int?,
 ?stop_duration : int?, ?stop_threshold : float?,
 ?stop_silence : int?, ?stop_mode : int?,
 ?detection : int?, ?window : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

start_periods (of type int?, which defaults to null): Default: 0
start_duration (of type int?, which defaults to null): set start duration of non-silence part. (default: 0)
start_threshold (of type float?, which defaults to null): set threshold for start silence detection. (default: 0.)
start_silence (of type int?, which defaults to null): set start duration of silence part to keep. (default: 0)
start_mode (of type int?, which defaults to null): set which channel will trigger trimming from start. (default: 0, possible values: 0 (any), 1 (all))
stop_periods (of type int?, which defaults to null): Default: 0
stop_duration (of type int?, which defaults to null): set stop duration of non-silence part. (default: 0)
stop_threshold (of type float?, which defaults to null): set threshold for stop silence detection. (default: 0.)
stop_silence (of type int?, which defaults to null): set stop duration of silence part to keep. (default: 0)
stop_mode (of type int?, which defaults to null): set which channel will trigger trimming from end. (default: 0, possible values: 0 (any), 1 (all))
detection (of type int?, which defaults to null): set how silence is detected. (default: 1, possible values: 0 (peak), 1 (rms))
window (of type float?, which defaults to null): set duration of window in seconds. (default: 0.02)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.sinc`

Ffmpeg filter: Generate a sinc kaiser-windowed low-pass, high-pass, band-pass, or band-reject FIR coefficients.

Type:

(?sample_rate : int?, ?r : int?, ?nb_samples : int?,
 ?n : int?, ?hp : float?, ?lp : float?, ?phase : float?,
 ?beta : float?, ?att : float?, ?round : bool?,
 ?hptaps : int?, ?lptaps : int?, ffmpeg.filter.graph) ->
ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): set sample rate. (default: 44100)
r (of type int?, which defaults to null): set sample rate. (default: 44100)
nb_samples (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
n (of type int?, which defaults to null): set the number of samples per requested frame. (default: 1024)
hp (of type float?, which defaults to null): set high-pass filter frequency. (default: 0.)
lp (of type float?, which defaults to null): set low-pass filter frequency. (default: 0.)
phase (of type float?, which defaults to null): set filter phase response. (default: 50.)
beta (of type float?, which defaults to null): set kaiser window beta. (default: -1.)
att (of type float?, which defaults to null): set stop-band attenuation. (default: 120.)
round (of type bool?, which defaults to null): enable rounding. (default: false)
hptaps (of type int?, which defaults to null): set number of taps for high-pass filter. (default: 0)
lptaps (of type int?, which defaults to null): set number of taps for low-pass filter. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.sine`

Ffmpeg filter: Generate sine wave audio signal.

Type:

(?frequency : float?, ?f : float?, ?beep_factor : float?,
 ?b : float?, ?sample_rate : int?, ?r : int?,
 ?duration : int?, ?d : int?,
 ?samples_per_frame : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set the sine frequency. (default: 440.)
f (of type float?, which defaults to null): set the sine frequency. (default: 440.)
beep_factor (of type float?, which defaults to null): set the beep frequency factor. (default: 0.)
b (of type float?, which defaults to null): set the beep frequency factor. (default: 0.)
sample_rate (of type int?, which defaults to null): set the sample rate. (default: 44100)
r (of type int?, which defaults to null): set the sample rate. (default: 44100)
duration (of type int?, which defaults to null): set the audio duration. (default: 0)
d (of type int?, which defaults to null): set the audio duration. (default: 0)
samples_per_frame (of type string?, which defaults to null): set the number of samples per frame. (default: 1024)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.smartblur`

Ffmpeg filter: Blur the input video without impacting the outlines.

Type:

(?luma_radius : float?, ?lr : float?,
 ?luma_strength : float?, ?ls : float?,
 ?luma_threshold : int?, ?lt : int?,
 ?chroma_radius : float?, ?cr : float?,
 ?chroma_strength : float?, ?cs : float?,
 ?chroma_threshold : int?, ?ct : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_radius (of type float?, which defaults to null): set luma radius. (default: 1.)
lr (of type float?, which defaults to null): set luma radius. (default: 1.)
luma_strength (of type float?, which defaults to null): set luma strength. (default: 1.)
ls (of type float?, which defaults to null): set luma strength. (default: 1.)
luma_threshold (of type int?, which defaults to null): set luma threshold. (default: 0)
lt (of type int?, which defaults to null): set luma threshold. (default: 0)
chroma_radius (of type float?, which defaults to null): set chroma radius. (default: -0.9)
cr (of type float?, which defaults to null): set chroma radius. (default: -0.9)
chroma_strength (of type float?, which defaults to null): set chroma strength. (default: -2.)
cs (of type float?, which defaults to null): set chroma strength. (default: -2.)
chroma_threshold (of type int?, which defaults to null): set chroma threshold. (default: -31)
ct (of type int?, which defaults to null): set chroma threshold. (default: -31)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.smptebars`

Ffmpeg filter: Generate SMPTE color bars.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.smptehdbars`

Ffmpeg filter: Generate SMPTE HD color bars.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.sobel`

Ffmpeg filter: Apply sobel operator.

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sobel_opencl`

Ffmpeg filter: Apply sobel operator

Type:

(?planes : int?, ?scale : float?, ?delta : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
scale (of type float?, which defaults to null): set scale. (default: 1.)
delta (of type float?, which defaults to null): set delta. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sofalizer`

Ffmpeg filter: SOFAlizer (Spatially Oriented Format for Acoustics).

Type:

(?sofa : string?, ?gain : float?, ?rotation : float?,
 ?elevation : float?, ?radius : float?, ?type : int?,
 ?speakers : string?, ?lfegain : float?,
 ?framesize : int?, ?normalize : bool?,
 ?interpolate : bool?, ?minphase : bool?,
 ?anglestep : float?, ?radstep : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

sofa (of type string?, which defaults to null): sofa filename
gain (of type float?, which defaults to null): set gain in dB. (default: 0.)
rotation (of type float?, which defaults to null): set rotation. (default: 0.)
elevation (of type float?, which defaults to null): set elevation. (default: 0.)
radius (of type float?, which defaults to null): set radius. (default: 1.)
type (of type int?, which defaults to null): set processing. (default: 1, possible values: 0 (time), 1 (freq))
speakers (of type string?, which defaults to null): set speaker custom positions
lfegain (of type float?, which defaults to null): set lfe gain. (default: 0.)
framesize (of type int?, which defaults to null): set frame size. (default: 1024)
normalize (of type bool?, which defaults to null): normalize IRs. (default: true)
interpolate (of type bool?, which defaults to null): interpolate IRs from neighbors. (default: false)
minphase (of type bool?, which defaults to null): minphase IRs. (default: false)
anglestep (of type float?, which defaults to null): set neighbor search angle step. (default: 0.5)
radstep (of type float?, which defaults to null): set neighbor search radius step. (default: 0.01)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.spectrumsynth`

Ffmpeg filter: Convert input spectrum videos to audio output.

Type:

(?sample_rate : int?, ?channels : int?, ?scale : int?,
 ?slide : int?, ?win_func : int?, ?overlap : float?,
 ?orientation : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.audio

Arguments:

sample_rate (of type int?, which defaults to null): set sample rate. (default: 44100)
channels (of type int?, which defaults to null): set channels. (default: 1)
scale (of type int?, which defaults to null): set input amplitude scale. (default: 1, possible values: 0 (lin), 1 (log))
slide (of type int?, which defaults to null): set input sliding mode. (default: 2, possible values: 0 (replace), 1 (scroll), 2 (fullframe), 3 (rscroll))
win_func (of type int?, which defaults to null): set window function. (default: 0, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 9 (sine))
overlap (of type float?, which defaults to null): set window overlap. (default: 1.)
orientation (of type int?, which defaults to null): set orientation. (default: 0, possible values: 0 (vertical), 1 (horizontal))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.split`

Ffmpeg filter: Pass on the input to N video outputs. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?outputs : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

outputs (of type int?, which defaults to null): set number of outputs. (default: 2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.spp`

Ffmpeg filter: Apply a simple post processing filter.

Type:

(?quality : int?, ?qp : int?, ?mode : int?,
 ?use_bframe_qp : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

quality (of type int?, which defaults to null): set quality. (default: 3)
qp (of type int?, which defaults to null): force a constant quantizer parameter. (default: 0)
mode (of type int?, which defaults to null): set thresholding mode. (default: 0, possible values: 0 (hard), 1 (soft))
use_bframe_qp (of type bool?, which defaults to null): use B-frames’ QP. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.sr`

Ffmpeg filter: Apply DNN-based image super resolution to the input.

Type:

(?dnn_backend : int?, ?scale_factor : int?,
 ?model : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dnn_backend (of type int?, which defaults to null): DNN backend used for model execution. (default: 0, possible values: 0 (native))
scale_factor (of type int?, which defaults to null): scale factor for SRCNN model. (default: 2)
model (of type string?, which defaults to null): path to model file specifying network architecture and its parameters
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.ssim`

Ffmpeg filter: Calculate the SSIM between two video streams.

Type:

(?stats_file : string?, ?f : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

stats_file (of type string?, which defaults to null): Set file where to store per-frame difference information
f (of type string?, which defaults to null): Set file where to store per-frame difference information
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.stereo3d`

Ffmpeg filter: Convert video stereoscopic 3D view.

Type:

(?in : int?, ?out : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

in (of type int?, which defaults to null): set input format. (default: 18, possible values: 24 (ab2l), 25 (ab2r), 22 (abl), 23 (abr), 26 (al), 27 (ar), 20 (sbs2l), 21 (sbs2r), 18 (sbsl), 19 (sbsr), 16 (irl), 17 (irr), 30 (icl), 31 (icr))
out (of type int?, which defaults to null): set output format. (default: 3, possible values: 24 (ab2l), 25 (ab2r), 22 (abl), 23 (abr), 6 (agmc), 7 (agmd), 4 (agmg), 5 (agmh), 26 (al), 27 (ar), 12 (arbg), 2 (arcc), 3 (arcd), 0 (arcg), 1 (arch), 13 (argg), 10 (aybc), 11 (aybd), 8 (aybg), 9 (aybh), 16 (irl), 17 (irr), 14 (ml), 15 (mr), 20 (sbs2l), 21 (sbs2r), 18 (sbsl), 19 (sbsr), 28 (chl), 29 (chr), 30 (icl), 31 (icr), 32 (hdmi))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.stereotools`

Ffmpeg filter: Apply various stereo tools.

Type:

(?level_in : float?, ?level_out : float?,
 ?balance_in : float?, ?balance_out : float?,
 ?softclip : bool?, ?mutel : bool?, ?muter : bool?,
 ?phasel : bool?, ?phaser : bool?, ?mode : int?,
 ?slev : float?, ?sbal : float?, ?mlev : float?,
 ?mpan : float?, ?base : float?, ?delay : float?,
 ?sclevel : float?, ?phase : float?, ?bmode_in : int?,
 ?bmode_out : int?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

level_in (of type float?, which defaults to null): set level in. (default: 1.)
level_out (of type float?, which defaults to null): set level out. (default: 1.)
balance_in (of type float?, which defaults to null): set balance in. (default: 0.)
balance_out (of type float?, which defaults to null): set balance out. (default: 0.)
softclip (of type bool?, which defaults to null): enable softclip. (default: false)
mutel (of type bool?, which defaults to null): mute L. (default: false)
muter (of type bool?, which defaults to null): mute R. (default: false)
phasel (of type bool?, which defaults to null): phase L. (default: false)
phaser (of type bool?, which defaults to null): phase R. (default: false)
mode (of type int?, which defaults to null): set stereo mode. (default: 0, possible values: 0 (lr>lr), 1 (lr>ms), 2 (ms>lr), 3 (lr>ll), 4 (lr>rr), 5 (lr>l+r), 6 (lr>rl), 7 (ms>ll), 8 (ms>rr))
slev (of type float?, which defaults to null): set side level. (default: 1.)
sbal (of type float?, which defaults to null): set side balance. (default: 0.)
mlev (of type float?, which defaults to null): set middle level. (default: 1.)
mpan (of type float?, which defaults to null): set middle pan. (default: 0.)
base (of type float?, which defaults to null): set stereo base. (default: 0.)
delay (of type float?, which defaults to null): set delay. (default: 0.)
sclevel (of type float?, which defaults to null): set S/C level. (default: 1.)
phase (of type float?, which defaults to null): set stereo phase. (default: 0.)
bmode_in (of type int?, which defaults to null): set balance in mode. (default: 0, possible values: 0 (balance), 1 (amplitude), 2 (power))
bmode_out (of type int?, which defaults to null): set balance out mode. (default: 0, possible values: 0 (balance), 1 (amplitude), 2 (power))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.stereowiden`

Ffmpeg filter: Apply stereo widening effect.

Type:

(?delay : float?, ?feedback : float?,
 ?crossfeed : float?, ?drymix : float?,
 ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

delay (of type float?, which defaults to null): set delay time. (default: 20.)
feedback (of type float?, which defaults to null): set feedback gain. (default: 0.3)
crossfeed (of type float?, which defaults to null): set cross feed. (default: 0.3)
drymix (of type float?, which defaults to null): set dry-mix. (default: 0.8)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.streamselect`

Ffmpeg filter: Select video streams This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime. This filter has dynamic outputs: returned value is a tuple of audio and video outputs. Total number of outputs is determined at runtime.

Type:

(?inputs : int?, ?map : string?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
[ffmpeg.filter.audio] * [ffmpeg.filter.video]

Arguments:

inputs (of type int?, which defaults to null): number of input streams. (default: 2)
map (of type string?, which defaults to null): input indexes to remap to outputs
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.subtitles`

Ffmpeg filter: Render text subtitles onto input video using the libass library.

Type:

(?filename : string?, ?f : string?,
 ?original_size : string?, ?fontsdir : string?,
 ?alpha : bool?, ?charenc : string?,
 ?stream_index : int?, ?si : int?,
 ?force_style : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

filename (of type string?, which defaults to null): set the filename of file to read
f (of type string?, which defaults to null): set the filename of file to read
original_size (of type string?, which defaults to null): set the size of the original video (used to scale fonts)
fontsdir (of type string?, which defaults to null): set the directory containing the fonts to read
alpha (of type bool?, which defaults to null): enable processing of alpha channel. (default: false)
charenc (of type string?, which defaults to null): set input character encoding
stream_index (of type int?, which defaults to null): set stream index. (default: -1)
si (of type int?, which defaults to null): set stream index. (default: -1)
force_style (of type string?, which defaults to null): force subtitle style
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.super2xsai`

Ffmpeg filter: Scale the input by 2x using the Super2xSaI pixel art algorithm.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.superequalizer`

Ffmpeg filter: Apply 18 band equalization filter.

Type:

(?1b : float?, ?2b : float?, ?3b : float?, ?4b : float?,
 ?5b : float?, ?6b : float?, ?7b : float?, ?8b : float?,
 ?9b : float?, ?10b : float?, ?11b : float?,
 ?12b : float?, ?13b : float?, ?14b : float?,
 ?15b : float?, ?16b : float?, ?17b : float?,
 ?18b : float?, ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

1b (of type float?, which defaults to null): set 65Hz band gain. (default: 1.)
2b (of type float?, which defaults to null): set 92Hz band gain. (default: 1.)
3b (of type float?, which defaults to null): set 131Hz band gain. (default: 1.)
4b (of type float?, which defaults to null): set 185Hz band gain. (default: 1.)
5b (of type float?, which defaults to null): set 262Hz band gain. (default: 1.)
6b (of type float?, which defaults to null): set 370Hz band gain. (default: 1.)
7b (of type float?, which defaults to null): set 523Hz band gain. (default: 1.)
8b (of type float?, which defaults to null): set 740Hz band gain. (default: 1.)
9b (of type float?, which defaults to null): set 1047Hz band gain. (default: 1.)
10b (of type float?, which defaults to null): set 1480Hz band gain. (default: 1.)
11b (of type float?, which defaults to null): set 2093Hz band gain. (default: 1.)
12b (of type float?, which defaults to null): set 2960Hz band gain. (default: 1.)
13b (of type float?, which defaults to null): set 4186Hz band gain. (default: 1.)
14b (of type float?, which defaults to null): set 5920Hz band gain. (default: 1.)
15b (of type float?, which defaults to null): set 8372Hz band gain. (default: 1.)
16b (of type float?, which defaults to null): set 11840Hz band gain. (default: 1.)
17b (of type float?, which defaults to null): set 16744Hz band gain. (default: 1.)
18b (of type float?, which defaults to null): set 20000Hz band gain. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.surround`

Ffmpeg filter: Apply audio surround upmix filter.

Type:

(?chl_out : string?, ?chl_in : string?,
 ?level_in : float?, ?level_out : float?, ?lfe : bool?,
 ?lfe_low : int?, ?lfe_high : int?, ?lfe_mode : int?,
 ?angle : float?, ?fc_in : float?, ?fc_out : float?,
 ?fl_in : float?, ?fl_out : float?, ?fr_in : float?,
 ?fr_out : float?, ?sl_in : float?, ?sl_out : float?,
 ?sr_in : float?, ?sr_out : float?, ?bl_in : float?,
 ?bl_out : float?, ?br_in : float?, ?br_out : float?,
 ?bc_in : float?, ?bc_out : float?, ?lfe_in : float?,
 ?lfe_out : float?, ?allx : float?, ?ally : float?,
 ?fcx : float?, ?flx : float?, ?frx : float?,
 ?blx : float?, ?brx : float?, ?slx : float?,
 ?srx : float?, ?bcx : float?, ?fcy : float?,
 ?fly : float?, ?fry : float?, ?bly : float?,
 ?bry : float?, ?sly : float?, ?sry : float?,
 ?bcy : float?, ?win_size : int?, ?win_func : int?,
 ?overlap : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

chl_out (of type string?, which defaults to null): set output channel layout. (default: 5.1)
chl_in (of type string?, which defaults to null): set input channel layout. (default: stereo)
level_in (of type float?, which defaults to null): set input level. (default: 1.)
level_out (of type float?, which defaults to null): set output level. (default: 1.)
lfe (of type bool?, which defaults to null): output LFE. (default: true)
lfe_low (of type int?, which defaults to null): LFE low cut off. (default: 128)
lfe_high (of type int?, which defaults to null): LFE high cut off. (default: 256)
lfe_mode (of type int?, which defaults to null): set LFE channel mode. (default: 0, possible values: 0 (add), 1 (sub))
angle (of type float?, which defaults to null): set soundfield transform angle. (default: 90.)
fc_in (of type float?, which defaults to null): set front center channel input level. (default: 1.)
fc_out (of type float?, which defaults to null): set front center channel output level. (default: 1.)
fl_in (of type float?, which defaults to null): set front left channel input level. (default: 1.)
fl_out (of type float?, which defaults to null): set front left channel output level. (default: 1.)
fr_in (of type float?, which defaults to null): set front right channel input level. (default: 1.)
fr_out (of type float?, which defaults to null): set front right channel output level. (default: 1.)
sl_in (of type float?, which defaults to null): set side left channel input level. (default: 1.)
sl_out (of type float?, which defaults to null): set side left channel output level. (default: 1.)
sr_in (of type float?, which defaults to null): set side right channel input level. (default: 1.)
sr_out (of type float?, which defaults to null): set side right channel output level. (default: 1.)
bl_in (of type float?, which defaults to null): set back left channel input level. (default: 1.)
bl_out (of type float?, which defaults to null): set back left channel output level. (default: 1.)
br_in (of type float?, which defaults to null): set back right channel input level. (default: 1.)
br_out (of type float?, which defaults to null): set back right channel output level. (default: 1.)
bc_in (of type float?, which defaults to null): set back center channel input level. (default: 1.)
bc_out (of type float?, which defaults to null): set back center channel output level. (default: 1.)
lfe_in (of type float?, which defaults to null): set lfe channel input level. (default: 1.)
lfe_out (of type float?, which defaults to null): set lfe channel output level. (default: 1.)
allx (of type float?, which defaults to null): set all channel’s x spread. (default: -1.)
ally (of type float?, which defaults to null): set all channel’s y spread. (default: -1.)
fcx (of type float?, which defaults to null): set front center channel x spread. (default: 1.)
flx (of type float?, which defaults to null): set front left channel x spread. (default: 1.)
frx (of type float?, which defaults to null): set front right channel x spread. (default: 1.)
blx (of type float?, which defaults to null): set back left channel x spread. (default: 1.)
brx (of type float?, which defaults to null): set back right channel x spread. (default: 1.)
slx (of type float?, which defaults to null): set side left channel x spread. (default: 1.)
srx (of type float?, which defaults to null): set side right channel x spread. (default: 1.)
bcx (of type float?, which defaults to null): set back center channel x spread. (default: 1.)
fcy (of type float?, which defaults to null): set front center channel y spread. (default: 1.)
fly (of type float?, which defaults to null): set front left channel y spread. (default: 1.)
fry (of type float?, which defaults to null): set front right channel y spread. (default: 1.)
bly (of type float?, which defaults to null): set back left channel y spread. (default: 1.)
bry (of type float?, which defaults to null): set back right channel y spread. (default: 1.)
sly (of type float?, which defaults to null): set side left channel y spread. (default: 1.)
sry (of type float?, which defaults to null): set side right channel y spread. (default: 1.)
bcy (of type float?, which defaults to null): set back center channel y spread. (default: 1.)
win_size (of type int?, which defaults to null): set window size. (default: 4096)
win_func (of type int?, which defaults to null): set window function. (default: 1, possible values: 0 (rect), 4 (bartlett), 1 (hann), 1 (hanning), 2 (hamming), 3 (blackman), 5 (welch), 6 (flattop), 7 (bharris), 8 (bnuttall), 11 (bhann), 9 (sine), 10 (nuttall), 12 (lanczos), 13 (gauss), 14 (tukey), 15 (dolph), 16 (cauchy), 17 (parzen), 18 (poisson), 19 (bohman))
overlap (of type float?, which defaults to null): set window overlap. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.swaprect`

Ffmpeg filter: Swap 2 rectangular objects in video.

Type:

(?w : string?, ?h : string?, ?x1 : string?,
 ?y1 : string?, ?x2 : string?, ?y2 : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

w (of type string?, which defaults to null): set rect width. (default: w/2)
h (of type string?, which defaults to null): set rect height. (default: h/2)
x1 (of type string?, which defaults to null): set 1st rect x top left coordinate. (default: w/2)
y1 (of type string?, which defaults to null): set 1st rect y top left coordinate. (default: h/2)
x2 (of type string?, which defaults to null): set 2nd rect x top left coordinate. (default: 0)
y2 (of type string?, which defaults to null): set 2nd rect y top left coordinate. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.swapuv`

Ffmpeg filter: Swap U and V components.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tblend`

Ffmpeg filter: Blend successive frames.

Type:

(?c0_mode : int?, ?c1_mode : int?, ?c2_mode : int?,
 ?c3_mode : int?, ?all_mode : int?, ?c0_expr : string?,
 ?c1_expr : string?, ?c2_expr : string?,
 ?c3_expr : string?, ?all_expr : string?,
 ?c0_opacity : float?, ?c1_opacity : float?,
 ?c2_opacity : float?, ?c3_opacity : float?,
 ?all_opacity : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

c0_mode (of type int?, which defaults to null): set component #0 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c1_mode (of type int?, which defaults to null): set component #1 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c2_mode (of type int?, which defaults to null): set component #2 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c3_mode (of type int?, which defaults to null): set component #3 blend mode. (default: 0, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
all_mode (of type int?, which defaults to null): set blend mode for all components. (default: -1, possible values: 1 (addition), 28 (addition128), 28 (grainmerge), 2 (and), 3 (average), 4 (burn), 5 (darken), 6 (difference), 7 (difference128), 7 (grainextract), 8 (divide), 9 (dodge), 10 (exclusion), 32 (extremity), 31 (freeze), 27 (glow), 11 (hardlight), 25 (hardmix), 30 (heat), 12 (lighten), 26 (linearlight), 13 (multiply), 29 (multiply128), 14 (negation), 0 (normal), 15 (or), 16 (overlay), 17 (phoenix), 18 (pinlight), 19 (reflect), 20 (screen), 21 (softlight), 22 (subtract), 23 (vividlight), 24 (xor))
c0_expr (of type string?, which defaults to null): set color component #0 expression
c1_expr (of type string?, which defaults to null): set color component #1 expression
c2_expr (of type string?, which defaults to null): set color component #2 expression
c3_expr (of type string?, which defaults to null): set color component #3 expression
all_expr (of type string?, which defaults to null): set expression for all color components
c0_opacity (of type float?, which defaults to null): set color component #0 opacity. (default: 1.)
c1_opacity (of type float?, which defaults to null): set color component #1 opacity. (default: 1.)
c2_opacity (of type float?, which defaults to null): set color component #2 opacity. (default: 1.)
c3_opacity (of type float?, which defaults to null): set color component #3 opacity. (default: 1.)
all_opacity (of type float?, which defaults to null): set opacity for all color components. (default: 1.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.telecine`

Ffmpeg filter: Apply a telecine pattern.

Type:

(?first_field : int?, ?pattern : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

first_field (of type int?, which defaults to null): select first field. (default: 0, possible values: 0 (top), 0 (t), 1 (bottom), 1 (b))
pattern (of type string?, which defaults to null): pattern that describe for how many fields a frame is to be displayed. (default: 23)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.testsrc`

Ffmpeg filter: Generate test pattern.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ?decimals : int?, ?n : int?,
 ffmpeg.filter.graph) -> ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
decimals (of type int?, which defaults to null): set number of decimals to show. (default: 0)
n (of type int?, which defaults to null): set number of decimals to show. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.testsrc2`

Ffmpeg filter: Generate another test pattern.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ?alpha : int?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
alpha (of type int?, which defaults to null): set global alpha (opacity). (default: 255)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.threshold`

Ffmpeg filter: Threshold first video stream using other video streams.

Type:

(?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video, ffmpeg.filter.video,
 ffmpeg.filter.video, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes to filter. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.thumbnail`

Ffmpeg filter: Select the most representative frame in a given sequence of consecutive frames.

Type:

(?n : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

n (of type int?, which defaults to null): set the frames batch size. (default: 100)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tile`

Ffmpeg filter: Tile several successive frames together.

Type:

(?layout : string?, ?nb_frames : int?, ?margin : int?,
 ?padding : int?, ?color : string?, ?overlap : int?,
 ?init_padding : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

layout (of type string?, which defaults to null): set grid size. (default: 6x5)
nb_frames (of type int?, which defaults to null): set maximum number of frame to render. (default: 0)
margin (of type int?, which defaults to null): set outer border margin in pixels. (default: 0)
padding (of type int?, which defaults to null): set inner border thickness in pixels. (default: 0)
color (of type string?, which defaults to null): set the color of the unused area. (default: black)
overlap (of type int?, which defaults to null): set how many frames to overlap for each render. (default: 0)
init_padding (of type int?, which defaults to null): set how many frames to initially pad. (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tinterlace`

Ffmpeg filter: Perform temporal field interlacing.

Type:

(?mode : int?, ?flags : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): select interlace mode. (default: 0, possible values: 0 (merge), 1 (drop_even), 2 (drop_odd), 3 (pad), 4 (interleave_top), 5 (interleave_bottom), 6 (interlacex2), 7 (mergex2))
flags (of type int?, which defaults to null): set flags. (default: 0, possible values: 1 (low_pass_filter), 1 (vlpf), 2 (complex_filter), 2 (cvlpf), 4 (exact_tb))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tlut2`

Ffmpeg filter: Compute and apply a lookup table from two successive frames.

Type:

(?c0 : string?, ?c1 : string?, ?c2 : string?,
 ?c3 : string?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

c0 (of type string?, which defaults to null): set component #0 expression. (default: x)
c1 (of type string?, which defaults to null): set component #1 expression. (default: x)
c2 (of type string?, which defaults to null): set component #2 expression. (default: x)
c3 (of type string?, which defaults to null): set component #3 expression. (default: x)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tmix`

Ffmpeg filter: Mix successive video frames.

Type:

(?frames : int?, ?weights : string?, ?scale : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

frames (of type int?, which defaults to null): set number of successive frames to mix. (default: 3)
weights (of type string?, which defaults to null): set weight for each frame. (default: 1 1 1)
scale (of type float?, which defaults to null): set scale. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tonemap`

Ffmpeg filter: Conversion to/from different dynamic ranges.

Type:

(?tonemap : int?, ?param : float?, ?desat : float?,
 ?peak : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

tonemap (of type int?, which defaults to null): tonemap algorithm selection. (default: 0, possible values: 0 (none), 1 (linear), 2 (gamma), 3 (clip), 4 (reinhard), 5 (hable), 6 (mobius))
param (of type float?, which defaults to null): tonemap parameter. (default: nan)
desat (of type float?, which defaults to null): desaturation strength. (default: 2.)
peak (of type float?, which defaults to null): signal peak override. (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tonemap_opencl`

Ffmpeg filter: perform HDR to SDR conversion with tonemapping

Type:

(?tonemap : int?, ?transfer : int?, ?t : int?,
 ?matrix : int?, ?m : int?, ?primaries : int?, ?p : int?,
 ?range : int?, ?r : int?, ?format : string?,
 ?peak : float?, ?param : float?, ?desat : float?,
 ?threshold : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

tonemap (of type int?, which defaults to null): tonemap algorithm selection. (default: 0, possible values: 0 (none), 1 (linear), 2 (gamma), 3 (clip), 4 (reinhard), 5 (hable), 6 (mobius))
transfer (of type int?, which defaults to null): set transfer characteristic. (default: 1, possible values: 1 (bt709), 14 (bt2020))
t (of type int?, which defaults to null): set transfer characteristic. (default: 1, possible values: 1 (bt709), 14 (bt2020))
matrix (of type int?, which defaults to null): set colorspace matrix. (default: -1, possible values: 1 (bt709), 9 (bt2020))
m (of type int?, which defaults to null): set colorspace matrix. (default: -1, possible values: 1 (bt709), 9 (bt2020))
primaries (of type int?, which defaults to null): set color primaries. (default: -1, possible values: 1 (bt709), 9 (bt2020))
p (of type int?, which defaults to null): set color primaries. (default: -1, possible values: 1 (bt709), 9 (bt2020))
range (of type int?, which defaults to null): set color range. (default: -1, possible values: 1 (tv), 2 (pc), 1 (limited), 2 (full))
r (of type int?, which defaults to null): set color range. (default: -1, possible values: 1 (tv), 2 (pc), 1 (limited), 2 (full))
format (of type string?, which defaults to null): output pixel format
peak (of type float?, which defaults to null): signal peak override. (default: 0.)
param (of type float?, which defaults to null): tonemap parameter. (default: nan)
desat (of type float?, which defaults to null): desaturation parameter. (default: 0.5)
threshold (of type float?, which defaults to null): scene detection threshold. (default: 0.2)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.tpad`

Ffmpeg filter: Temporarily pad video frames.

Type:

(?start : int?, ?stop : int?, ?start_mode : int?,
 ?stop_mode : int?, ?start_duration : int?,
 ?stop_duration : int?, ?color : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

start (of type int?, which defaults to null): set the number of frames to delay input. (default: 0)
stop (of type int?, which defaults to null): set the number of frames to add after input finished. (default: 0)
start_mode (of type int?, which defaults to null): set the mode of added frames to start. (default: 0, possible values: 0 (add), 1 (clone))
stop_mode (of type int?, which defaults to null): set the mode of added frames to end. (default: 0, possible values: 0 (add), 1 (clone))
start_duration (of type int?, which defaults to null): set the duration to delay input. (default: 0)
stop_duration (of type int?, which defaults to null): set the duration to pad input. (default: 0)
color (of type string?, which defaults to null): set the color of the added frames. (default: black)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.transpose`

Ffmpeg filter: Transpose input video.

Type:

(?dir : int?, ?passthrough : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dir (of type int?, which defaults to null): set transpose direction. (default: 0, possible values: 0 (cclock_flip), 1 (clock), 2 (cclock), 3 (clock_flip))
passthrough (of type int?, which defaults to null): do not apply transposition if the input matches the specified geometry. (default: 0, possible values: 0 (none), 2 (portrait), 1 (landscape))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.transpose_opencl`

Ffmpeg filter: Transpose input video

Type:

(?dir : int?, ?passthrough : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dir (of type int?, which defaults to null): set transpose direction. (default: 0, possible values: 0 (cclock_flip), 1 (clock), 2 (cclock), 3 (clock_flip))
passthrough (of type int?, which defaults to null): do not apply transposition if the input matches the specified geometry. (default: 0, possible values: 0 (none), 2 (portrait), 1 (landscape))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.transpose_vaapi`

Ffmpeg filter: VAAPI VPP for transpose

Type:

(?dir : int?, ?passthrough : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

dir (of type int?, which defaults to null): set transpose direction. (default: 0, possible values: 0 (cclock_flip), 1 (clock), 2 (cclock), 3 (clock_flip), 4 (reversal), 5 (hflip), 6 (vflip))
passthrough (of type int?, which defaults to null): do not apply transposition if the input matches the specified geometry. (default: 0, possible values: 0 (none), 2 (portrait), 1 (landscape))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.treble`

Ffmpeg filter: Boost or cut upper frequencies.

Type:

(?frequency : float?, ?f : float?, ?width_type : int?,
 ?t : int?, ?width : float?, ?w : float?, ?gain : float?,
 ?g : float?, ?mix : float?, ?m : float?,
 ?channels : string?, ?c : string?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

frequency (of type float?, which defaults to null): set central frequency. (default: 3000.)
f (of type float?, which defaults to null): set central frequency. (default: 3000.)
width_type (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
t (of type int?, which defaults to null): set filter-width type. (default: 3, possible values: 1 (h), 3 (q), 2 (o), 4 (s), 5 (k))
width (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
w (of type float?, which defaults to null): set shelf transition steep. (default: 0.5)
gain (of type float?, which defaults to null): set gain. (default: 0.)
g (of type float?, which defaults to null): set gain. (default: 0.)
mix (of type float?, which defaults to null): set mix. (default: 1.)
m (of type float?, which defaults to null): set mix. (default: 1.)
channels (of type string?, which defaults to null): set channels to filter
c (of type string?, which defaults to null): set channels to filter
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.tremolo`

Ffmpeg filter: Apply tremolo effect.

Type:

(?f : float?, ?d : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

f (of type float?, which defaults to null): set frequency in hertz. (default: 5.)
d (of type float?, which defaults to null): set depth as percentage. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.trim`

Ffmpeg filter: Pick one continuous section from the input, drop the rest.

Type:

(?start : int?, ?starti : int?, ?end : int?,
 ?endi : int?, ?start_pts : int?, ?end_pts : int?,
 ?duration : int?, ?durationi : int?,
 ?start_frame : int?, ?end_frame : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

start (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: 9223372036854775807)
starti (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: 9223372036854775807)
end (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: 9223372036854775807)
endi (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: 9223372036854775807)
start_pts (of type int?, which defaults to null): Timestamp of the first frame that should be passed. (default: -9223372036854775808)
end_pts (of type int?, which defaults to null): Timestamp of the first frame that should be dropped again. (default: -9223372036854775808)
duration (of type int?, which defaults to null): Maximum duration of the output. (default: 0)
durationi (of type int?, which defaults to null): Maximum duration of the output. (default: 0)
start_frame (of type int?, which defaults to null): Number of the first frame that should be passed to the output. (default: -1)
end_frame (of type int?, which defaults to null): Number of the first frame that should be dropped again. (default: 9223372036854775807)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.unpremultiply`

Ffmpeg filter: UnPreMultiply first stream with first plane of second stream. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?planes : int?, ?inplace : bool?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

planes (of type int?, which defaults to null): set planes. (default: 15)
inplace (of type bool?, which defaults to null): enable inplace mode. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.unsharp`

Ffmpeg filter: Sharpen or blur the input video.

Type:

(?luma_msize_x : int?, ?lx : int?, ?luma_msize_y : int?,
 ?ly : int?, ?luma_amount : float?, ?la : float?,
 ?chroma_msize_x : int?, ?cx : int?,
 ?chroma_msize_y : int?, ?cy : int?,
 ?chroma_amount : float?, ?ca : float?, ?opencl : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_msize_x (of type int?, which defaults to null): set luma matrix horizontal size. (default: 5)
lx (of type int?, which defaults to null): set luma matrix horizontal size. (default: 5)
luma_msize_y (of type int?, which defaults to null): set luma matrix vertical size. (default: 5)
ly (of type int?, which defaults to null): set luma matrix vertical size. (default: 5)
luma_amount (of type float?, which defaults to null): set luma effect strength. (default: 1.)
la (of type float?, which defaults to null): set luma effect strength. (default: 1.)
chroma_msize_x (of type int?, which defaults to null): set chroma matrix horizontal size. (default: 5)
cx (of type int?, which defaults to null): set chroma matrix horizontal size. (default: 5)
chroma_msize_y (of type int?, which defaults to null): set chroma matrix vertical size. (default: 5)
cy (of type int?, which defaults to null): set chroma matrix vertical size. (default: 5)
chroma_amount (of type float?, which defaults to null): set chroma effect strength. (default: 0.)
ca (of type float?, which defaults to null): set chroma effect strength. (default: 0.)
opencl (of type bool?, which defaults to null): ignored. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.unsharp_opencl`

Ffmpeg filter: Apply unsharp mask to input video

Type:

(?luma_msize_x : float?, ?lx : float?,
 ?luma_msize_y : float?, ?ly : float?,
 ?luma_amount : float?, ?la : float?,
 ?chroma_msize_x : float?, ?cx : float?,
 ?chroma_msize_y : float?, ?cy : float?,
 ?chroma_amount : float?, ?ca : float?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

luma_msize_x (of type float?, which defaults to null): Set luma mask horizontal diameter (pixels). (default: 5.)
lx (of type float?, which defaults to null): Set luma mask horizontal diameter (pixels). (default: 5.)
luma_msize_y (of type float?, which defaults to null): Set luma mask vertical diameter (pixels). (default: 5.)
ly (of type float?, which defaults to null): Set luma mask vertical diameter (pixels). (default: 5.)
luma_amount (of type float?, which defaults to null): Set luma amount (multiplier). (default: 1.)
la (of type float?, which defaults to null): Set luma amount (multiplier). (default: 1.)
chroma_msize_x (of type float?, which defaults to null): Set chroma mask horizontal diameter (pixels after subsampling). (default: 5.)
cx (of type float?, which defaults to null): Set chroma mask horizontal diameter (pixels after subsampling). (default: 5.)
chroma_msize_y (of type float?, which defaults to null): Set chroma mask vertical diameter (pixels after subsampling). (default: 5.)
cy (of type float?, which defaults to null): Set chroma mask vertical diameter (pixels after subsampling). (default: 5.)
chroma_amount (of type float?, which defaults to null): Set chroma amount (multiplier). (default: 0.)
ca (of type float?, which defaults to null): Set chroma amount (multiplier). (default: 0.)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.uspp`

Ffmpeg filter: Apply Ultra Simple / Slow Post-processing filter.

Type:

(?quality : int?, ?qp : int?, ?use_bframe_qp : bool?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

quality (of type int?, which defaults to null): set quality. (default: 3)
qp (of type int?, which defaults to null): force a constant quantizer parameter. (default: 0)
use_bframe_qp (of type bool?, which defaults to null): use B-frames’ QP. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vaguedenoiser`

Ffmpeg filter: Apply a Wavelet based Denoiser.

Type:

(?threshold : float?, ?method : int?, ?nsteps : int?,
 ?percent : float?, ?planes : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

threshold (of type float?, which defaults to null): set filtering strength. (default: 2.)
method (of type int?, which defaults to null): set filtering method. (default: 2, possible values: 0 (hard), 1 (soft), 2 (garrote))
nsteps (of type int?, which defaults to null): set number of steps. (default: 6)
percent (of type float?, which defaults to null): set percent of full denoising. (default: 85.)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vectorscope`

Ffmpeg filter: Video vectorscope.

Type:

(?mode : int?, ?m : int?, ?x : int?, ?y : int?,
 ?intensity : float?, ?i : float?, ?envelope : int?,
 ?e : int?, ?graticule : int?, ?g : int?,
 ?opacity : float?, ?o : float?, ?flags : int?,
 ?f : int?, ?bgopacity : float?, ?b : float?,
 ?lthreshold : float?, ?l : float?, ?hthreshold : float?,
 ?h : float?, ?colorspace : int?, ?c : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set vectorscope mode. (default: 0, possible values: 0 (gray), 1 (color), 2 (color2), 3 (color3), 4 (color4), 5 (color5))
m (of type int?, which defaults to null): set vectorscope mode. (default: 0, possible values: 0 (gray), 1 (color), 2 (color2), 3 (color3), 4 (color4), 5 (color5))
x (of type int?, which defaults to null): set color component on X axis. (default: 1)
y (of type int?, which defaults to null): set color component on Y axis. (default: 2)
intensity (of type float?, which defaults to null): set intensity. (default: 0.004)
i (of type float?, which defaults to null): set intensity. (default: 0.004)
envelope (of type int?, which defaults to null): set envelope. (default: 0, possible values: 0 (none), 1 (instant), 2 (peak), 3 (peak+instant))
e (of type int?, which defaults to null): set envelope. (default: 0, possible values: 0 (none), 1 (instant), 2 (peak), 3 (peak+instant))
graticule (of type int?, which defaults to null): set graticule. (default: 0, possible values: 0 (none), 1 (green), 2 (color))
g (of type int?, which defaults to null): set graticule. (default: 0, possible values: 0 (none), 1 (green), 2 (color))
opacity (of type float?, which defaults to null): set graticule opacity. (default: 0.75)
o (of type float?, which defaults to null): set graticule opacity. (default: 0.75)
flags (of type int?, which defaults to null): set graticule flags. (default: 4, possible values: 1 (white), 2 (black), 4 (name))
f (of type int?, which defaults to null): set graticule flags. (default: 4, possible values: 1 (white), 2 (black), 4 (name))
bgopacity (of type float?, which defaults to null): set background opacity. (default: 0.3)
b (of type float?, which defaults to null): set background opacity. (default: 0.3)
lthreshold (of type float?, which defaults to null): set low threshold. (default: 0.)
l (of type float?, which defaults to null): set low threshold. (default: 0.)
hthreshold (of type float?, which defaults to null): set high threshold. (default: 1.)
h (of type float?, which defaults to null): set high threshold. (default: 1.)
colorspace (of type int?, which defaults to null): set colorspace. (default: 0, possible values: 0 (auto), 1 (601), 2 (709))
c (of type int?, which defaults to null): set colorspace. (default: 0, possible values: 0 (auto), 1 (601), 2 (709))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vflip`

Ffmpeg filter: Flip the input video vertically.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vfrdet`

Ffmpeg filter: Variable frame rate detect filter.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vibrance`

Ffmpeg filter: Boost or alter saturation.

Type:

(?intensity : float?, ?rbal : float?, ?gbal : float?,
 ?bbal : float?, ?rlum : float?, ?glum : float?,
 ?blum : float?, ?alternate : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

intensity (of type float?, which defaults to null): set the intensity value. (default: 0.)
rbal (of type float?, which defaults to null): set the red balance value. (default: 1.)
gbal (of type float?, which defaults to null): set the green balance value. (default: 1.)
bbal (of type float?, which defaults to null): set the blue balance value. (default: 1.)
rlum (of type float?, which defaults to null): set the red luma coefficient. (default: 0.072186)
glum (of type float?, which defaults to null): set the green luma coefficient. (default: 0.715158)
blum (of type float?, which defaults to null): set the blue luma coefficient. (default: 0.212656)
alternate (of type bool?, which defaults to null): use alternate colors. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vibrato`

Ffmpeg filter: Apply vibrato effect.

Type:

(?f : float?, ?d : float?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

f (of type float?, which defaults to null): set frequency in hertz. (default: 5.)
d (of type float?, which defaults to null): set depth as percentage. (default: 0.5)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.vidstabdetect`

Ffmpeg filter: Extract relative transformations, pass 1 of 2 for stabilization (see vidstabtransform for pass 2).

Type:

(?result : string?, ?shakiness : int?, ?accuracy : int?,
 ?stepsize : int?, ?mincontrast : float?, ?show : int?,
 ?tripod : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

result (of type string?, which defaults to null): path to the file used to write the transforms. (default: transforms.trf)
shakiness (of type int?, which defaults to null): how shaky is the video and how quick is the camera? 1: little (fast) 10: very strong/quick (slow). (default: 5)
accuracy (of type int?, which defaults to null): (>=shakiness) 1: low 15: high (slow). (default: 15)
stepsize (of type int?, which defaults to null): region around minimum is scanned with 1 pixel resolution. (default: 6)
mincontrast (of type float?, which defaults to null): below this contrast a field is discarded (0-1). (default: 0.25)
show (of type int?, which defaults to null): 0: draw nothing; 1,2: show fields and transforms. (default: 0)
tripod (of type int?, which defaults to null): virtual tripod mode (if >0): motion is compared to a reference reference frame (frame # is the value). (default: 0)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vidstabtransform`

Ffmpeg filter: Transform the frames, pass 2 of 2 for stabilization (see vidstabdetect for pass 1).

Type:

(?input : string?, ?smoothing : int?, ?optalgo : int?,
 ?maxshift : int?, ?maxangle : float?, ?crop : int?,
 ?invert : int?, ?relative : int?, ?zoom : float?,
 ?optzoom : int?, ?zoomspeed : float?, ?interpol : int?,
 ?tripod : bool?, ?debug : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

input (of type string?, which defaults to null): set path to the file storing the transforms. (default: transforms.trf)
smoothing (of type int?, which defaults to null): set number of frames*2 + 1 used for lowpass filtering. (default: 15)
optalgo (of type int?, which defaults to null): set camera path optimization algo. (default: 0, possible values: 0 (opt), 1 (gauss), 2 (avg))
maxshift (of type int?, which defaults to null): set maximal number of pixels to translate image. (default: -1)
maxangle (of type float?, which defaults to null): set maximal angle in rad to rotate image. (default: -1.)
crop (of type int?, which defaults to null): set cropping mode. (default: 0, possible values: 0 (keep), 1 (black))
invert (of type int?, which defaults to null): invert transforms. (default: 0)
relative (of type int?, which defaults to null): consider transforms as relative. (default: 1)
zoom (of type float?, which defaults to null): set percentage to zoom (>0: zoom in, <0: zoom out. (default: 0.)
optzoom (of type int?, which defaults to null): set optimal zoom (0: nothing, 1: optimal static zoom, 2: optimal dynamic zoom). (default: 1)
zoomspeed (of type float?, which defaults to null): for adative zoom: percent to zoom maximally each frame. (default: 0.25)
interpol (of type int?, which defaults to null): set type of interpolation. (default: 2, possible values: 0 (no), 1 (linear), 2 (bilinear), 3 (bicubic))
tripod (of type bool?, which defaults to null): enable virtual tripod mode (same as relative=0:smoothing=0). (default: false)
debug (of type bool?, which defaults to null): enable debug mode and writer global motions information to file. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vignette`

Ffmpeg filter: Make or reverse a vignette effect.

Type:

(?angle : string?, ?a : string?, ?x0 : string?,
 ?y0 : string?, ?mode : int?, ?eval : int?,
 ?dither : bool?, ?aspect : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

angle (of type string?, which defaults to null): set lens angle. (default: PI/5)
a (of type string?, which defaults to null): set lens angle. (default: PI/5)
x0 (of type string?, which defaults to null): set circle center position on x-axis. (default: w/2)
y0 (of type string?, which defaults to null): set circle center position on y-axis. (default: h/2)
mode (of type int?, which defaults to null): set forward/backward mode. (default: 0, possible values: 0 (forward), 1 (backward))
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (init), 1 (frame))
dither (of type bool?, which defaults to null): set dithering. (default: true)
aspect (of type string?, which defaults to null): set aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.vmafmotion`

Ffmpeg filter: Calculate the VMAF Motion score.

Type:

(?stats_file : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

stats_file (of type string?, which defaults to null): Set file where to store per-frame difference information
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.volume`

Ffmpeg filter: Change input volume.

Type:

(?volume : string?, ?precision : int?, ?eval : int?,
 ?replaygain : int?, ?replaygain_preamp : float?,
 ?replaygain_noclip : bool?, ffmpeg.filter.graph,
 ffmpeg.filter.audio) -> ffmpeg.filter.audio

Arguments:

volume (of type string?, which defaults to null): set volume adjustment expression. (default: 1.0)
precision (of type int?, which defaults to null): select mathematical precision. (default: 1, possible values: 0 (fixed), 1 (float), 2 (double))
eval (of type int?, which defaults to null): specify when to evaluate expressions. (default: 0, possible values: 0 (once), 1 (frame))
replaygain (of type int?, which defaults to null): Apply replaygain side data when present. (default: 0, possible values: 0 (drop), 1 (ignore), 2 (track), 3 (album))
replaygain_preamp (of type float?, which defaults to null): Apply replaygain pre-amplification. (default: 0.)
replaygain_noclip (of type bool?, which defaults to null): Apply replaygain clipping prevention. (default: true)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.volumedetect`

Ffmpeg filter: Detect audio volume.

Type:

(ffmpeg.filter.graph, ffmpeg.filter.audio) ->
ffmpeg.filter.audio

Arguments:

(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.audio)

`ffmpeg.filter.vstack`

Ffmpeg filter: Stack video inputs vertically. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?shortest : bool?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
shortest (of type bool?, which defaults to null): force termination when the shortest input terminates. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.w3fdif`

Ffmpeg filter: Apply Martin Weston three field deinterlace.

Type:

(?filter : int?, ?deint : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

filter (of type int?, which defaults to null): specify the filter. (default: 1, possible values: 0 (simple), 1 (complex))
deint (of type int?, which defaults to null): specify which frames to deinterlace. (default: 0, possible values: 0 (all), 1 (interlaced))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.waveform`

Ffmpeg filter: Video waveform monitor.

Type:

(?mode : int?, ?m : int?, ?intensity : float?,
 ?i : float?, ?mirror : bool?, ?r : bool?,
 ?display : int?, ?d : int?, ?components : int?,
 ?c : int?, ?envelope : int?, ?e : int?, ?filter : int?,
 ?f : int?, ?graticule : int?, ?g : int?,
 ?opacity : float?, ?o : float?, ?flags : int?,
 ?fl : int?, ?scale : int?, ?s : int?,
 ?bgopacity : float?, ?b : float?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): set mode. (default: 1, possible values: 0 (row), 1 (column))
m (of type int?, which defaults to null): set mode. (default: 1, possible values: 0 (row), 1 (column))
intensity (of type float?, which defaults to null): set intensity. (default: 0.04)
i (of type float?, which defaults to null): set intensity. (default: 0.04)
mirror (of type bool?, which defaults to null): set mirroring. (default: true)
r (of type bool?, which defaults to null): set mirroring. (default: true)
display (of type int?, which defaults to null): set display mode. (default: 1, possible values: 0 (overlay), 1 (stack), 2 (parade))
d (of type int?, which defaults to null): set display mode. (default: 1, possible values: 0 (overlay), 1 (stack), 2 (parade))
components (of type int?, which defaults to null): set components to display. (default: 1)
c (of type int?, which defaults to null): set components to display. (default: 1)
envelope (of type int?, which defaults to null): set envelope to display. (default: 0, possible values: 0 (none), 1 (instant), 2 (peak), 3 (peak+instant))
e (of type int?, which defaults to null): set envelope to display. (default: 0, possible values: 0 (none), 1 (instant), 2 (peak), 3 (peak+instant))
filter (of type int?, which defaults to null): set filter. (default: 0, possible values: 0 (lowpass), 1 (flat), 2 (aflat), 3 (chroma), 4 (color), 5 (acolor), 6 (xflat))
f (of type int?, which defaults to null): set filter. (default: 0, possible values: 0 (lowpass), 1 (flat), 2 (aflat), 3 (chroma), 4 (color), 5 (acolor), 6 (xflat))
graticule (of type int?, which defaults to null): set graticule. (default: 0, possible values: 0 (none), 1 (green), 2 (orange))
g (of type int?, which defaults to null): set graticule. (default: 0, possible values: 0 (none), 1 (green), 2 (orange))
opacity (of type float?, which defaults to null): set graticule opacity. (default: 0.75)
o (of type float?, which defaults to null): set graticule opacity. (default: 0.75)
flags (of type int?, which defaults to null): set graticule flags. (default: 1, possible values: 1 (numbers), 2 (dots))
fl (of type int?, which defaults to null): set graticule flags. (default: 1, possible values: 1 (numbers), 2 (dots))
scale (of type int?, which defaults to null): set scale. (default: 0, possible values: 0 (digital), 1 (millivolts), 2 (ire))
s (of type int?, which defaults to null): set scale. (default: 0, possible values: 0 (digital), 1 (millivolts), 2 (ire))
bgopacity (of type float?, which defaults to null): set background opacity. (default: 0.75)
b (of type float?, which defaults to null): set background opacity. (default: 0.75)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.weave`

Ffmpeg filter: Weave input video fields into frames.

Type:

(?first_field : int?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

first_field (of type int?, which defaults to null): set first field. (default: 0, possible values: 0 (top), 0 (t), 1 (bottom), 1 (b))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.xbr`

Ffmpeg filter: Scale the input using xBR algorithm.

Type:

(?n : int?, ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

n (of type int?, which defaults to null): set scale factor. (default: 3)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.xmedian`

Ffmpeg filter: Pick median pixels from several video inputs. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?planes : int?, ffmpeg.filter.graph,
 [ffmpeg.filter.audio], [ffmpeg.filter.video]) ->
ffmpeg.filter.video

Arguments:

inputs (of type int?, which defaults to null): set number of inputs. (default: 3)
planes (of type int?, which defaults to null): set planes to filter. (default: 15)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.xstack`

Ffmpeg filter: Stack video inputs into custom layout. This filter has dynamic inputs: last two arguments are lists of audio and video inputs. Total number of inputs is determined at runtime.

Type:

(?inputs : int?, ?layout : string?, ?shortest : bool?,
 ffmpeg.filter.graph, [ffmpeg.filter.audio],
 [ffmpeg.filter.video]) -> ffmpeg.filter.video

Arguments:

inputs (of type int?, which defaults to null): set number of inputs. (default: 2)
layout (of type string?, which defaults to null): set custom layout
shortest (of type bool?, which defaults to null): force termination when the shortest input terminates. (default: false)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type [ffmpeg.filter.audio])
(unlabeled) (of type [ffmpeg.filter.video])

`ffmpeg.filter.yadif`

Ffmpeg filter: Deinterlace the input image.

Type:

(?mode : int?, ?parity : int?, ?deint : int?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

mode (of type int?, which defaults to null): specify the interlacing mode. (default: 0, possible values: 0 (send_frame), 1 (send_field), 2 (send_frame_nospatial), 3 (send_field_nospatial))
parity (of type int?, which defaults to null): specify the assumed picture field parity. (default: -1, possible values: 0 (tff), 1 (bff), -1 (auto))
deint (of type int?, which defaults to null): specify which frames to deinterlace. (default: 0, possible values: 0 (all), 1 (interlaced))
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.yuvtestsrc`

Ffmpeg filter: Generate YUV test pattern.

Type:

(?size : string?, ?s : string?, ?rate : string?,
 ?r : string?, ?duration : int?, ?d : int?,
 ?sar : string?, ffmpeg.filter.graph) ->
ffmpeg.filter.video

Arguments:

size (of type string?, which defaults to null): set video size. (default: 320x240)
s (of type string?, which defaults to null): set video size. (default: 320x240)
rate (of type string?, which defaults to null): set video rate. (default: 25)
r (of type string?, which defaults to null): set video rate. (default: 25)
duration (of type int?, which defaults to null): set video duration. (default: -1)
d (of type int?, which defaults to null): set video duration. (default: -1)
sar (of type string?, which defaults to null): set video sample aspect ratio. (default: 1/1)
(unlabeled) (of type ffmpeg.filter.graph)

`ffmpeg.filter.zmq`

Ffmpeg filter: Receive commands through ZMQ and broker them to filters.

Type:

(?bind_address : string?, ?b : string?,
 ffmpeg.filter.graph, ffmpeg.filter.video) ->
ffmpeg.filter.video

Arguments:

bind_address (of type string?, which defaults to null): set bind address. (default: tcp://*:5555)
b (of type string?, which defaults to null): set bind address. (default: tcp://*:5555)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`ffmpeg.filter.zoompan`

Ffmpeg filter: Apply Zoom & Pan effect.

Type:

(?zoom : string?, ?z : string?, ?x : string?,
 ?y : string?, ?d : string?, ?s : string?,
 ?fps : string?, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.filter.video

Arguments:

zoom (of type string?, which defaults to null): set the zoom expression. (default: 1)
z (of type string?, which defaults to null): set the zoom expression. (default: 1)
x (of type string?, which defaults to null): set the x expression. (default: 0)
y (of type string?, which defaults to null): set the y expression. (default: 0)
d (of type string?, which defaults to null): set the duration expression. (default: 90)
s (of type string?, which defaults to null): set the output image size. (default: hd720)
fps (of type string?, which defaults to null): set the output framerate. (default: 25)
(unlabeled) (of type ffmpeg.filter.graph)
(unlabeled) (of type ffmpeg.filter.video)

`predicate.activates`

Detect when a predicate becomes true.

Type:

(?init : bool, (() -> bool)) -> () -> bool

Arguments:

init (of type bool, which defaults to false): Detect at begining.
(unlabeled) (of type () -> bool): Predicate.

`predicate.changes`

Detect when a predicate changes.

Type:

((() -> 'a)) -> () -> bool where 'a is an orderable type

Arguments:

(unlabeled) (of type () -> 'a where 'a is an orderable type): Predicate.

`predicate.once`

First occurrence of a predicate.

Type:

((() -> bool)) -> () -> bool

Arguments:

(unlabeled) (of type () -> bool): Predicate.

`server.harbor`

Start an interface for the “telnet” server over http.

Type:

(?port : int, ?uri : string) -> unit

Arguments:

port (of type int, which defaults to 8080): Port of the server.
uri (of type string, which defaults to "/telnet"): URI of the server.

List

Math

Other

Output

`output.external.ffmpeg`

Output to ffmpeg.

Type:

(?id : string, ?show_command : bool, ?flush : bool,
 ?fallible : bool, ?on_start : (() -> unit),
 ?on_stop : (() -> unit), ?reopen_delay : float,
 ?reopen_on_metadata : bool, ?reopen_when : (() -> bool),
 ?start : bool, string, source(audio=pcm(stereo),
 video=yuva420p, midi=none)) ->
active_source(audio=pcm(stereo), video=yuva420p,
midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
show_command (of type bool, which defaults to false)
flush (of type bool, which defaults to false): Perform a flush after each write.
fallible (of type bool, which defaults to false): Allow the child source to fail, in which case the output will be (temporarily) stopped.
on_start (of type () -> unit, which defaults to <fun>): Callback executed when outputting starts.
on_stop (of type () -> unit, which defaults to <fun>): Callback executed when outputting stops.
reopen_delay (of type float, which defaults to 120.): Prevent re-opening within that delay, in seconds.
reopen_on_metadata (of type bool, which defaults to false): Re-open on every new metadata information.
reopen_when (of type () -> bool, which defaults to {false}): When should the output be re-opened.
start (of type bool, which defaults to true): Automatically start outputting whenever possible. If true, an infallible (normal) output will start outputting as soon as it is created, and a fallible output will (re)start as soon as its source becomes available for streaming.
(unlabeled) (of type string)
(unlabeled) (of type source(audio=pcm(stereo), video=yuva420p, midi=none))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
reopen (of type () -> unit): Reopen the pipe.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.file.dash.ffmpeg`

Output an MPEG-DASH playlist using ffmpeg

Type:

(?id : string, ?flush : bool, ?fallible : bool,
 ?on_start : (() -> unit), ?on_stop : (() -> unit),
 ?reopen_delay : float, ?reopen_on_metadata : bool,
 ?reopen_when : (() -> bool), ?start : bool,
 ?playlist : string, directory : 'a,
 source(audio=pcm(stereo), video=yuva420p, midi=none)) ->
active_source(audio=pcm(stereo), video=yuva420p,
midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
flush (of type bool, which defaults to false): Perform a flush after each write.
fallible (of type bool, which defaults to false): Allow the child source to fail, in which case the output will be (temporarily) stopped.
on_start (of type () -> unit, which defaults to <fun>): Callback executed when outputting starts.
on_stop (of type () -> unit, which defaults to <fun>): Callback executed when outputting stops.
reopen_delay (of type float, which defaults to 120.): Prevent re-opening within that delay, in seconds.
reopen_on_metadata (of type bool, which defaults to false): Re-open on every new metadata information.
reopen_when (of type () -> bool, which defaults to {false}): When should the output be re-opened.
start (of type bool, which defaults to true): Automatically start outputting whenever possible. If true, an infallible (normal) output will start outputting as soon as it is created, and a fallible output will (re)start as soon as its source becomes available for streaming.
playlist (of type string, which defaults to "stream.mpd"): Playlist name
directory (of type 'a): Directory to write to
(unlabeled) (of type source(audio=pcm(stereo), video=yuva420p, midi=none))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
reopen (of type () -> unit): Reopen the pipe.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.file.hls.ffmpeg`

Output a HLS playlist using ffmpeg

Type:

(?id : string, ?flush : bool, ?fallible : bool,
 ?on_start : (() -> unit), ?on_stop : (() -> unit),
 ?reopen_delay : float, ?reopen_on_metadata : bool,
 ?reopen_when : (() -> bool), ?start : bool,
 ?playlist : string, directory : string,
 source(audio=pcm(stereo), video=yuva420p, midi=none)) ->
active_source(audio=pcm(stereo), video=yuva420p,
midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
flush (of type bool, which defaults to false): Perform a flush after each write.
fallible (of type bool, which defaults to false): Allow the child source to fail, in which case the output will be (temporarily) stopped.
on_start (of type () -> unit, which defaults to <fun>): Callback executed when outputting starts.
on_stop (of type () -> unit, which defaults to <fun>): Callback executed when outputting stops.
reopen_delay (of type float, which defaults to 120.): Prevent re-opening within that delay, in seconds.
reopen_on_metadata (of type bool, which defaults to false): Re-open on every new metadata information.
reopen_when (of type () -> bool, which defaults to {false}): When should the output be re-opened.
start (of type bool, which defaults to true): Automatically start outputting whenever possible. If true, an infallible (normal) output will start outputting as soon as it is created, and a fallible output will (re)start as soon as its source becomes available for streaming.
playlist (of type string, which defaults to "stream.m3u8"): Playlist name
directory (of type string): Directory to write to
(unlabeled) (of type source(audio=pcm(stereo), video=yuva420p, midi=none))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
reopen (of type () -> unit): Reopen the pipe.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.youtube.live.ffmpeg`

Stream to youtube.

Type:

(?id : string, ?flush : bool, ?fallible : bool,
 ?on_start : (() -> unit), ?on_stop : (() -> unit),
 ?reopen_delay : float, ?reopen_on_metadata : bool,
 ?reopen_when : (() -> bool), ?start : bool,
 ?url : string, ?bitrate : int, ?quality : string,
 key : string, source(audio=pcm(stereo), video=yuva420p,
 midi=none)) -> active_source(audio=pcm(stereo),
video=yuva420p, midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
flush (of type bool, which defaults to false): Perform a flush after each write.
fallible (of type bool, which defaults to false): Allow the child source to fail, in which case the output will be (temporarily) stopped.
on_start (of type () -> unit, which defaults to <fun>): Callback executed when outputting starts.
on_stop (of type () -> unit, which defaults to <fun>): Callback executed when outputting stops.
reopen_delay (of type float, which defaults to 120.): Prevent re-opening within that delay, in seconds.
reopen_on_metadata (of type bool, which defaults to false): Re-open on every new metadata information.
reopen_when (of type () -> bool, which defaults to {false}): When should the output be re-opened.
start (of type bool, which defaults to true): Automatically start outputting whenever possible. If true, an infallible (normal) output will start outputting as soon as it is created, and a fallible output will (re)start as soon as its source becomes available for streaming.
url (of type string, which defaults to "rtmp://a.rtmp.youtube.com/live2"): URL to stream to
bitrate (of type int, which defaults to 2500): Bitrate of the video (in kbps)
quality (of type string, which defaults to "medium"): Quality of the video (low / medium / high)
key (of type string): Your secret youtube key
(unlabeled) (of type source(audio=pcm(stereo), video=yuva420p, midi=none))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
reopen (of type () -> unit): Reopen the pipe.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

Pair

Source / Conversions

Source / Input

`gstreamer.single.audio`

Play a single audio file using GStreamer.

Type:

(?id : string, ?on_error : (('a) -> float), {string}) ->
source(audio=pcm('c), video='d, midi='e)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
on_error (of type ('a) -> float, which defaults to fun (_) -> 3.): Callback executed when an error happens.
(unlabeled) (of type {string}): URI of the file to be played.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`input.mplayer`

Stream data from mplayer

Type:

(?id : string, ?restart : bool, ?restart_on_error : bool,
 ?buffer : float, ?max : float, string) ->
source(audio=pcm('a), video='b, midi='c)

Arguments:

id (of type string, which defaults to "input.mplayer")
restart (of type bool, which defaults to true): restart on exit.
restart_on_error (of type bool, which defaults to false): restart on exit with error.
buffer (of type float, which defaults to 0.2): Duration of the pre-buffered data.
max (of type float, which defaults to 10.): Maximum duration of the buffered data.
(unlabeled) (of type string): data URI.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`input.v4l2`

Stream from a video4linux 2 input device, such as a webcam.

Type:

(?id : string, ?device : string,
 ?on_error : ((string) -> float)) -> source(audio='a,
video=yuva420p('b), midi='c)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
device (of type string, which defaults to "/dev/video0"): V4L2 device to use.
on_error (of type (string) -> float, which defaults to fun (_) -> 3.): Callback executed when an error happens.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`input.v4l2_with_audio`

Stream from a video4linux 2 input device, such as a webcam.

Type:

(?id : string, ?device : string,
 ?on_error : ((string) -> float)) ->
source(audio=pcm(stereo), video=yuva420p('a), midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
device (of type string, which defaults to "/dev/video0"): V4L2 device to use.
on_error (of type (string) -> float, which defaults to fun (_) -> 3.): Callback executed when an error happens.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
pause (of type () -> unit): Pause input.
play (of type () -> unit): Play input.
remaining (of type () -> float): Estimation of remaining time in the current track.
restart (of type () -> unit): Restart input.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.file.hls.gstreamer`

Play an http live stream.

Type:

(?id : string, ?on_error : ((string) -> float), {string}) ->
source(audio=pcm(stereo), video=yuva420p('b), midi=none)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
on_error (of type (string) -> float, which defaults to fun (_) -> 3.): Callback executed when an error happens.
(unlabeled) (of type {string}): URI of the HLS stream index.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
pause (of type () -> unit): Pause input.
play (of type () -> unit): Play input.
remaining (of type () -> float): Estimation of remaining time in the current track.
restart (of type () -> unit): Restart input.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.file.hls.gstreamer.audio`

Play an audio-only http live stream.

Type:

(?id : string, ?on_error : ((string) -> float), {string}) ->
source(audio=pcm('b), video='c, midi='d)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
on_error (of type (string) -> float, which defaults to fun (_) -> 3.): Callback executed when an error happens.
(unlabeled) (of type {string}): URI of the HLS stream index.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`video.testsrc.gstreamer`

Test audio-video source using GStreamer.

Type:

(?id : string) -> source(audio=pcm(stereo),
video=yuva420p('a), midi=none)

Arguments:

id (of type string, which defaults to "")

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
pause (of type () -> unit): Pause input.
play (of type () -> unit): Play input.
remaining (of type () -> float): Estimation of remaining time in the current track.
restart (of type () -> unit): Restart input.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

Source / Liquidsoap

Source / MIDI Processing

Source / Output

`gstreamer.encode_jpeg_avi`

Encode jpeg video file using gstreamer

Type:

('a, source(audio=pcm('b), video='c, midi='d)) ->
active_source(audio=pcm('b), video='c, midi='d)

Arguments:

(unlabeled) (of type 'a): Encoded file name
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d)): Source

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`gstreamer.encode_mp3`

Encode a mp3 file using gstreamer

Type:

('a, source(audio=pcm('b), video='c, midi='d)) ->
active_source(audio=pcm('b), video='c, midi='d)

Arguments:

(unlabeled) (of type 'a): Encoded file name
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d)): Source

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`gstreamer.encode_x264_avi`

Encode an x264 video file using gstreamer

Type:

('a, source(audio=pcm('b), video='c, midi='d)) ->
active_source(audio=pcm('b), video='c, midi='d)

Arguments:

(unlabeled) (of type 'a): Encoded file name
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d)): Source

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`gstreamer.rtp.mpeg4`

Broadcast a video in RTP. In order to play it, save the following in xxx.sdp and use vlc xxx.sdp:

v=0
m=video 5000 RTP/AVP 96
c=IN IP4 127.0.0.1
a=rtpmap:96 MP4V-ES/90000

Type:

(?host : string, ?port : int, source(audio=pcm('a),
 video='b, midi='c)) -> active_source(audio=pcm('a),
video='b, midi='c)

Arguments:

host (of type string, which defaults to "127.0.0.1")
port (of type int, which defaults to 5000)
(unlabeled) (of type source(audio=pcm('a), video='b, midi='c))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`output.youtube.live`

Stream live on youtube. You need the following Gstreamer plugins: flvmux, rtmpsink, x264enc and a suitable AAC encoder (see audio_encoder params).

Type:

(?id : string, ?video_bitrate : int,
 ?audio_encoder : string, ?audio_bitrate : int,
 ?url : string, key : string, source(audio=pcm('a),
 video=yuva420p('b), midi='c)) ->
active_source(audio=pcm('a), video=yuva420p('b), midi='c)

Arguments:

id (of type string, which defaults to ""): Source ID
video_bitrate (of type int, which defaults to 2000): Video bitrate
audio_encoder (of type string, which defaults to "fdkaacenc"): Audio encoder. Can be one of: “fdkaacenc”, “voaacenc”
audio_bitrate (of type int, which defaults to 128000): Audio bitrate
url (of type string, which defaults to "rtmp://a.rtmp.youtube.com/live2"): Server URL
key (of type string): Secret key
(unlabeled) (of type source(audio=pcm('a), video=yuva420p('b), midi='c)): Source to stream

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

Source / Sound Processing

`helium`

Increases the pitch, making voices sound like on helium.

Type:

(source(audio=pcm('a), video='b, midi='c)) ->
source(audio=pcm('a), video='b, midi='c)

Arguments:

(unlabeled) (of type source(audio=pcm('a), video='b, midi='c)): The input source.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.amp_mono`

Mono Amplifier by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?gain : {float}, source(audio=pcm('b),
 video='c, midi='d)) -> source(audio=pcm('e), video='f,
midi='g)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
gain (of type {float}, which defaults to 1.): Gain (0 <= gain).
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.amp_stereo`

Stereo Amplifier by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?gain : {float}, source(audio=pcm(stereo),
 video='b, midi='c)) -> source(audio=pcm(stereo),
video='d, midi='e)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
gain (of type {float}, which defaults to 1.): Gain (0 <= gain).
(unlabeled) (of type source(audio=pcm(stereo), video='b, midi='c))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.delay_5s`

Simple Delay Line by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?delay : {float},
 ?dry_wet_balance : {float}, source(audio=pcm('c),
 video='d, midi='e)) -> source(audio=pcm('f), video='g,
midi='h)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
delay (of type {float}, which defaults to 1.): Delay (Seconds) (0 <= delay <= 5).
dry_wet_balance (of type {float}, which defaults to 0.5): Dry/Wet Balance (0 <= dry_wet_balance <= 1).
(unlabeled) (of type source(audio=pcm('c), video='d, midi='e))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.hpf`

Simple High Pass Filter by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?cutoff_frequency : {float},
 source(audio=pcm('b), video='c, midi='d)) ->
source(audio=pcm('e), video='f, midi='g)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
cutoff_frequency (of type {float}, which defaults to 440.): Cutoff Frequency (Hz) (0 <= cutoff_frequency <= 22050).
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.lpf`

Simple Low Pass Filter by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?cutoff_frequency : {float},
 source(audio=pcm('b), video='c, midi='d)) ->
source(audio=pcm('e), video='f, midi='g)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
cutoff_frequency (of type {float}, which defaults to 440.): Cutoff Frequency (Hz) (0 <= cutoff_frequency <= 22050).
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.noise_white`

White Noise Source by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?amplitude : {float}) ->
source(audio=pcm(mono), video='b, midi='c)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
amplitude (of type {float}, which defaults to 1.): Amplitude (0 <= amplitude).

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.sine_faaa`

Sine Oscillator (Freq:audio, Amp:audio) by Richard Furse (LADSPA example plugins).

Type:

(?id : string, source(audio=pcm(stereo), video='a,
 midi='b)) -> source(audio=pcm(mono), video='c, midi='d)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
(unlabeled) (of type source(audio=pcm(stereo), video='a, midi='b))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.sine_faac`

Sine Oscillator (Freq:audio, Amp:control) by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?amplitude : {float},
 source(audio=pcm('b), video='c, midi='d)) ->
source(audio=pcm('e), video='f, midi='g)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
amplitude (of type {float}, which defaults to 1.): Amplitude (0 <= amplitude).
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.sine_fcaa`

Sine Oscillator (Freq:control, Amp:audio) by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?frequency : {float},
 source(audio=pcm('b), video='c, midi='d)) ->
source(audio=pcm('e), video='f, midi='g)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
frequency (of type {float}, which defaults to 440.): Frequency (Hz) (0 <= frequency <= 22050).
(unlabeled) (of type source(audio=pcm('b), video='c, midi='d))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`ladspa.sine_fcac`

Sine Oscillator (Freq:control, Amp:control) by Richard Furse (LADSPA example plugins).

Type:

(?id : string, ?amplitude : {float},
 ?frequency : {float}) -> source(audio=pcm(mono),
video='c, midi='d)

Arguments:

id (of type string, which defaults to ""): Force the value of the source ID.
amplitude (of type {float}, which defaults to 1.): Amplitude (0 <= amplitude).
frequency (of type {float}, which defaults to 440.): Frequency (Hz) (0 <= frequency <= 22050).

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`nrj`

Compress and normalize, producing a more uniform and “full” sound.

Type:

(source(audio=pcm('a), video='b, midi='c)) ->
source(audio=pcm('a), video='b, midi='c)

Arguments:

(unlabeled) (of type source(audio=pcm('a), video='b, midi='c)): The input source.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`sky`

Multiband-compression.

Type:

(source(audio=pcm('a), video=internal('b),
 midi=internal('c))) -> source(audio=pcm('a),
video=internal('b), midi=internal('c))

Arguments:

(unlabeled) (of type source(audio=pcm('a), video=internal('b), midi=internal('c))): The input source.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

Source / Sound Synthesis

Source / Track Processing

`fallback.skip`

Special track insensitive fallback that always skips current song before switching.

Type:

(input : source(audio='a, video='b, midi='c),
 source(audio='a, video='b, midi='c)) -> source(audio='a,
video='b, midi='c)

Arguments:

input (of type source(audio='a, video='b, midi='c)): The input source
(unlabeled) (of type source(audio='a, video='b, midi='c)): The fallback source

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

`notify_metadata`

Use notify to display metadata info.

Type:

(?urgency : string, ?icon : string, ?time : int,
 ?display : (([string * string]) -> string),
 ?title : string, 'b
 .{on_metadata : (((([string * string]) -> unit)) -> 'a)
 }) -> 'a

Arguments:

urgency (of type string, which defaults to "low"): Urgency (low|normal|critical).
icon (of type string, which defaults to "stock_smiley-22"): Icon filename or stock icon to display.
time (of type int, which defaults to 3000): Timeout in milliseconds.
display (of type ([string * string]) -> string, which defaults to <fun>): Function used to display a metadata packet.
title (of type string, which defaults to "Liquidsoap: new track"): Title of the notification message.
(unlabeled) (of type 'b.{on_metadata : (((([string * string]) -> unit)) -> 'a) })

`osd_metadata`

Use X On Screen Display to display metadata info.

Type:

(?color : string, ?position : string, ?font : string,
 ?display : (([string * string]) -> string), 'b
 .{on_metadata : (((([string * string]) -> unit)) -> 'a)
 }) -> 'a

Arguments:

color (of type string, which defaults to "green"): Color of the text.
position (of type string, which defaults to "top"): Position of the text (top|middle|bottom).
font (of type string, which defaults to "-*-courier-*-r-*-*-*-240-*-*-*-*-*-*"): Font used (xfontsel is your friend…)
display (of type ([string * string]) -> string, which defaults to <fun>): Function used to display a metadata packet.
(unlabeled) (of type 'b.{on_metadata : (((([string * string]) -> unit)) -> 'a) })

`smooth_add`

Mixes two streams, with faded transitions between the state when only the normal stream is available and when the special stream gets added on top of it.

Type:

(?delay : float, ?p : {float},
 normal : source(audio=pcm('b), video=internal('c),
 midi=internal('d)), special : source(audio=pcm('b),
 video=internal('c), midi=internal('d))) ->
source(audio=pcm('b), video=internal('c),
midi=internal('d))

Arguments:

delay (of type float, which defaults to 0.5): Delay before starting the special source.
p (of type {float}, which defaults to 0.2): Portion of amplitude of the normal source in the mix.
normal (of type source(audio=pcm('b), video=internal('c), midi=internal('d))): The normal source, which could be called the carrier too.
special (of type source(audio=pcm('b), video=internal('c), midi=internal('d))): The special source.

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.

Source / Video Processing

`input.external.ffmpeg`

Input from ffmpeg.

Type:

(?id : string, ?show_command : bool, ?restart : bool,
 ?restart_on_error : bool, ?buffer : float, ?max : float,
 string) -> source(audio=pcm(stereo), video=yuva420p('a),
midi=none)

Arguments:

id (of type string, which defaults to "input.external.ffmpeg")
show_command (of type bool, which defaults to false)
restart (of type bool, which defaults to true): restart on exit.
restart_on_error (of type bool, which defaults to false): restart on exit with error.
buffer (of type float, which defaults to 0.2): Duration of the pre-buffered data.
max (of type float, which defaults to 10.): Maximum duration of the buffered data.
(unlabeled) (of type string): ffmpeg options specifying the input

`video.external.testsrc`

ffmpeg’s test source video (useful for testing and debugging).

Type:

(?id : string, ?restart : bool, ?restart_on_error : bool,
 ?buffer : float, ?max : float, ?framerate : int) ->
source(audio=pcm(stereo), video=yuva420p('a), midi=none)

Arguments:

id (of type string, which defaults to "video.external.testsrc")
restart (of type bool, which defaults to true): restart on exit.
restart_on_error (of type bool, which defaults to false): restart on exit with error.
buffer (of type float, which defaults to 0.2): Duration of the pre-buffered data.
max (of type float, which defaults to 10.): Maximum duration of the buffered data.
framerate (of type int, which defaults to 0)

Source / Visualization

String

System

`file.cover`

Obtain cover-art for a file. An empty string is returned in case there is no such information.

Type:

(?id : string, string) -> string

Arguments:

id (of type string, which defaults to "file.cover")
(unlabeled) (of type string): File from which the cover should be obtained

Visualization

`vumeter`

VU meter: display the audio volume (RMS in dB).

Type:

(?rms_min : float, ?rms_max : float, ?window : float,
 ?scroll : bool, source(audio=pcm('a), video='b,
 midi='c)) -> source(audio=pcm('a), video='b, midi='c)

Arguments:

rms_min (of type float, which defaults to -25.): Minimal volume.
rms_max (of type float, which defaults to -5.): Maximal volume.
window (of type float, which defaults to 0.5): Duration in seconds of volume computation.
scroll (of type bool, which defaults to false): Update the display in the same line.
(unlabeled) (of type source(audio=pcm('a), video='b, midi='c))

Methods:

fallible (of type () -> bool): Indicate if a source may fail, i.e. may not be ready to stream.
id (of type () -> string): Identifier of the source.
is_ready (of type () -> bool): Indicate if a source is ready to stream, or currently streaming.
is_up (of type () -> bool): Check whether a source is up.
on_metadata (of type ((([string * string]) -> unit)) -> unit): Call a given handler on metadata packets.
on_shutdown (of type ((() -> unit)) -> unit): Register a function to be called when source shuts down.
on_track (of type ((([string * string]) -> unit)) -> unit): Call a given handler on new tracks.
remaining (of type () -> float): Estimation of remaining time in the current track.
rms (of type () -> float): Current value for the RMS volume.
seek (of type (float) -> float): Seek forward, in seconds (returns the amount of time effectively seeked).
shutdown (of type () -> unit): Deactivate a source.
skip (of type () -> unit): Skip to the next track.
time (of type () -> float): Get a source’s time, based on its assigned clock.