2024-09-03, 09:50 PM
I'm gonna reply to myself 
The PR code has been merged in the current 'unstable' release: 2024090205+deb12
Instructions on how to set up the weekly/unstable repo available here: https://jellyfin.org/downloads/server/ (click on unstable, top right corner)
I just tested it, what a difference!
-codec:v:0 mpeg2video
As opposed to the stable release, where it is/was trying to copy the video portion as it was originally, hence not doing any transcoding:
-codec:v:0 copy
Thanks all for the great work!

The PR code has been merged in the current 'unstable' release: 2024090205+deb12
Instructions on how to set up the weekly/unstable repo available here: https://jellyfin.org/downloads/server/ (click on unstable, top right corner)
I just tested it, what a difference!
-codec:v:0 mpeg2video
As opposed to the stable release, where it is/was trying to copy the video portion as it was originally, hence not doing any transcoding:
-codec:v:0 copy
Thanks all for the great work!