Add audio-only option to transcoders and player

This patch adds an audio-only option to PeerTube by means of a new transcoding configuration which creates mp4 files which only contain an audio stream. This new transcoder has a resolution of '0' and is presented in the preferences and in the player resolution menu as 'Audio-only' (localised). When playing such streams the player shows the file thumbnail as background and disables controls autohide.

Audio-only files can be shared and streamed just like any other file. They can be downloaded as well, the resulting file will be an mp4 container with a single audio stream.

This patch is a proof of concept to show the feasibility of 'true' audio-only support. There are better ways of doing this which also enable multiple audio streams for a given video stream (e.g. DASH) but as this would entail a fundamental change in the way PeerTube works it is a bridge too far for a simple proof of concept.

1 files changed, 1 insertions, 0 deletions

diff --git a/server/initializers/config.ts b/server/initializers/config.ts
index 6d5d55487..c6e478f57 100644
--- a/server/initializers/config.ts
+++ b/server/initializers/config.ts
@@ -168,6 +168,7 @@ const CONFIG = {
     get ALLOW_AUDIO_FILES () { return config.get<boolean>('transcoding.allow_audio_files') },
     get THREADS () { return config.get<number>('transcoding.threads') },
     RESOLUTIONS: {
+      get '0p' () { return config.get<boolean>('transcoding.resolutions.0p') },
       get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
       get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
       get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },