ANNOTATE

Add metadata to a request

The syntax is annotate:key="val",key2="val2",...:uri.

FFMPEG

Decode any file to wave using ffmpeg

The syntax is ffmpeg:uri.

FILE

File protocol. Only local files are supported

The syntax is file:///path/to/file. This protocol is static.

GTTS

Generate speech synthesis using Google translate’s text-to-speech API. This requires the gtts-cli binary. Result may be mono.

The syntax is gtts:Text to read. This protocol is static.

HTTP

Download http URLs using curl

The syntax is http://....

HTTPS

Download http URLs using curl

The syntax is https://....

MPD

Finds all files with a tag equal to a given value using mpd.

The syntax is mpd:tag=value.

POLLY

Generate speech synthesis using AWS polly service. Result might be mono, needs aws binary in the path.

The syntax is polly:Text to read. This protocol is static.

PROCESS

Resolve a request using an arbitrary process. <cmd> is interpolated with: [("input",<input>),("output",<output>),("colon",":")]. uri is an optional child request, <output> is the name of a fresh temporary file and has extension .<extname>. <input> is an optional input file name as returned while resolving uri.

The syntax is process:<extname>,<cmd>[:uri].

REPLAYGAIN

Compute replaygain value using the extract-replaygain script. Adds returned value as "replaygain_track_gain" metadata

The syntax is replaygain:uri.

S3

Fetch files from s3 using the AWS CLI

The syntax is s3://uri.

SAY

Generate speech synthesis using text2wave. Result is always stereo.

The syntax is say:Text to read. This protocol is static.

STEREO

Convert a file to stereo (currently decodes to wav).

The syntax is stereo:<uri>. This protocol is static.

SYNTH

Syntesize audio. Parameters are optional.

The syntax is synth:shape=sine,frequency=440.,duration=10.. This protocol is static.

TEXT2WAVE

Generate speech synthesis using text2wave. Result may be mono.

The syntax is text2wave:Text to read. This protocol is static.

TMP

Mark the given uri as temporary. Useful when chaining protocols

The syntax is tmp:uri.

YOUTUBE-DL

Resolve a request using youtube-dl.

The syntax is youtube-dl:uri.

YOUTUBE-PL

Resolve a request as a youtube playlist using youtube-dl.

The syntax is youtube-pl:uri.