Audio/Video split: video can be marked as transcoded before the audio is available

[JohnXLivingston]

Describe the current behavior

Hello.

On a new instance, i have set the new option to separate audio and video.
I also have allowed only one concurrent job.

I uploaded a new video (duration: more than 1 hour).

First, the video is marked as "transcoding in progress".
But, once the 1080p version was available, the video was no more marked as "transcoding in progress".
The audio file was not process at all at this moment, and it took many minutes to do so.

So, as a result, users browsing to the video had the video, but not the audio!
And nothing was indicating that the transcoding was not over.

Steps to reproduce

1. enable the option to separate audio and video
2. set the max concurrent jobs to 1
3. upload a long video
4. check the video once the first job is finished, and before the following are finished

Describe the expected behavior

• Video should be marked as "transcoding in progress" as long as there are remaining jobs (afterall, even when small resolutions are not available users can have some issues)
• audio job should maybe be the first one to handle?

Alternative solution:

• as long as there is not 1 video AND 1 audio job finished, peertube should propose the original file (with the usual warning)

Additional information

• PeerTube instance:
  • Version: 6.3.2