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/middlewares/validators/config.ts b/server/middlewares/validators/config.ts
index 1db907f91..d86fa700b 100644
--- a/server/middlewares/validators/config.ts
+++ b/server/middlewares/validators/config.ts
@@ -37,6 +37,7 @@ const customConfigUpdateValidator = [
   body('transcoding.enabled').isBoolean().withMessage('Should have a valid transcoding enabled boolean'),
   body('transcoding.allowAdditionalExtensions').isBoolean().withMessage('Should have a valid additional extensions boolean'),
   body('transcoding.threads').isInt().withMessage('Should have a valid transcoding threads number'),
+  body('transcoding.resolutions.0p').isBoolean().withMessage('Should have a valid transcoding 0p resolution enabled boolean'),
   body('transcoding.resolutions.240p').isBoolean().withMessage('Should have a valid transcoding 240p resolution enabled boolean'),
   body('transcoding.resolutions.360p').isBoolean().withMessage('Should have a valid transcoding 360p resolution enabled boolean'),
   body('transcoding.resolutions.480p').isBoolean().withMessage('Should have a valid transcoding 480p resolution enabled boolean'),