Bug#993974: mpv: Can't play anything anymore

[Sebastian Ramacher <sramacher@debian.org>]

Control: reassign -1 ffmpeg 7:4.4-1
Control: affects -1 mpv 0.33.1-1

On 2021-09-09 20:23:22, Sven Joachim wrote:
> Control: affects -1 - mpv
> Control: reassign -1 mpv 0.33.1-1
> Control: severity -1 serious
> 
> On 2021-09-09 09:16 +0200, Sebastian Ramacher wrote:
> 
> > Control: reassign -1 src:ffmpeg 7:4.4-1
> > Control: retitle -1 ffmpeg: bump symbol versions to generate dependencies with >= 7:4.4
> 
> I do not think this is the right solution.
> 
> > On 2021-09-08 19:45:03 -0300, Nelson A. de Oliveira wrote:
> >> Package: mpv
> >> Version: 0.33.1-1
> >> Severity: grave
> >> Justification: renders package unusable
> >>
> >> Hi!
> >>
> >> After upgrading mpv from 0.32.0-3 to 0.33.1-1 it seems that I can't play
> >> anything anymore.
> >> (downgrading to 0.32.0-3 I can play videos again)
> >>
> >> =====
> >> $ mpv palestra.mp4
> >> libavutil: 56.70.100 -> 56.51.100
> >> zsh: abort      mpv palestra.mp4
> 
> It is mpv's own code which does the library version check and aborts
> here, see check_library_versions() in common/av_log.c.

ffmpeg in general does not support users who build with X but run
with Y < X. mpv checks for that and aborts if that is not the case.
Reassigning back to ffmpeg. Please do not reassign it again.

Cheers

> 
> There used to be a Debian patch to prevent that, but it was removed
> rather than rebased in 0.33.1-1[1].
> 
> Cheers,
>        Sven
> 
> 
> 1. https://salsa.debian.org/multimedia-team/mpv/-/commit/280e7916502baa177bbd23435f0ce16a56c8be21#4850c9e1d1b2b6d5c3448c16e5dcf6fbf07b338a

-- 
Sebastian Ramacher