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/config/production.yaml.example b/config/production.yaml.example
index 68ae22944..d7bbc39cf 100644
--- a/config/production.yaml.example
+++ b/config/production.yaml.example
@@ -217,6 +217,7 @@ transcoding:
   allow_audio_files: true
   threads: 1
   resolutions: # Only created if the original video has a higher resolution, uses more storage!
+    0p: false # audio-only (creates mp4 without video stream)
     240p: false
     360p: false
     480p: false