Track / Video processing

ffmpeg.filter.video.output

Return a video track from a filter's output

Type:

(?id : string?, ?pass_metadata : bool, ffmpeg.filter.graph,
 ffmpeg.filter.video) -> ffmpeg.video.raw('a)

Arguments:

• id (of type string?, which defaults to null): Force the value of the track ID.
• pass_metadata (of type bool, which defaults to true): Pass ffmpeg stream metadata to liquidsoap
• (unlabeled) (of type ffmpeg.filter.graph)
• (unlabeled) (of type ffmpeg.filter.video)

track.video.add

Merge video tracks.

Type:

(?id : string?, [canvas('a)]) -> canvas('a)

Arguments:

• id (of type string?, which defaults to null): Force the value of the track ID.
• (unlabeled) (of type [canvas('a)])

track.video.add_image

Add a static image on the given video track.

Type:

(?id : string?, ?fallible : bool, ?width : {int}?, ?height : {int}?,
 ?x : {int}, ?y : {int}, file : {string}, canvas('a)) -> canvas('a)

Arguments:

• id (of type string?, which defaults to "track.video.add_image"): Force the value of the source ID.
• fallible (of type bool, which defaults to false): Whether we are allowed to fail (in case the file is non-existent or invalid).
• width (of type {int}?, which defaults to null): Scale to width
• height (of type {int}?, which defaults to null): Scale to height
• x (of type {int}, which defaults to 0): x position.
• y (of type {int}, which defaults to 0): y position.
• file (of type {string}): Path to the image file.
• (unlabeled) (of type canvas('a))

track.video.add_request

Add a static request on the given video track.

Type:

(?id : string?, ?fallible : bool, ?width : {int}?, ?height : {int}?,
 ?x : {int}, ?y : {int}, request : {request}, canvas('a)) -> canvas('a)

Arguments:

• id (of type string?, which defaults to "track.video.add_request"): Force the value of the source ID.
• fallible (of type bool, which defaults to false): Whether we are allowed to fail (in case the file is non-existent or invalid).
• width (of type {int}?, which defaults to null): Scale to width
• height (of type {int}?, which defaults to null): Scale to height
• x (of type {int}, which defaults to 0): x position.
• y (of type {int}, which defaults to 0): y position.
• request (of type {request}): Request to add to the video track
• (unlabeled) (of type canvas('a))

track.video.tile

Tile video tracks.

Type:

(?id : string?, ?proportional : bool, [canvas('a)]) -> canvas('a)

Arguments:

• id (of type string?, which defaults to null): Force the value of the track ID.
• proportional (of type bool, which defaults to true): Scale preserving the proportions.
• (unlabeled) (of type [canvas('a)])