Bug#869093: mpv: hwdec=vdpau now not supported?

[James Cowgill]

Control: clone -1 -2
Control: reassign -2 src:ffmpeg 7:3.2.6-1
Control: retitle -2 ffmpeg: please update to 3.3
Control: severity -2 wishlist
Control: block -1 by -2

Hi,

On 20/07/17 14:50, Arthur Marsh wrote:
> Package: mpv
> Version: 0.26.0-1
> Severity: normal
> 
> Dear Maintainer,
> 
> *** Reporter, please consider answering these questions, where appropriate ***
> 
>    * What led up to the situation?
> 
> Replaying a video that on the previous version of mpv used minimal cpu:
> 
> $ mpv --vo=vdpau --hwdec=vdpau *mp4
> Playing: blah.mp4
>  (+) Video --vid=1 (*) (h264 1920x1080 29.970fps)
>  (+) Audio --aid=1 --alang=jpn (*) (aac 2ch 48000Hz)
>      Audio --aid=2 --alang=jpn (*) (aac 6ch 48000Hz)
>      Audio --aid=3 --alang=jpn (*) (aac 2ch 48000Hz)
> Requested hardware decoder not compiled.
> AO: [pulse] 48000Hz stereo 2ch float
> VO: [vdpau] 1920x1080 yuv420p
> 
>    * What exactly did you do (or not do) that was effective (or
>      ineffective)?
> 
> I checked the release notes, which stated:
> 
> VA-API/VDPAU hardware decoding now requires FFmpeg > 3.2.
> 
> and checked the installed ffmpeg:
> 
> ffmpeg         7:3.2.6-1+b3

Sorry, I didn't check VDPAU before uploading 0.26.0.

It appears there was a typo in the release notes - it should say that
ffmpeg 3.3 is required for VDPAU. This is the relevant upstream commit:

video: drop vaapi/vdpau hw decoding support with FFmpeg 3.2:
https://github.com/mpv-player/mpv/commit/f59371de2170141fc28540d03c4e7ecc62844ebf

Unfortunately Debian doesn't yet have FFmpeg 3.3 so that feature was not
compiled into mpv at build time. Now that upstream has dropped the old
version, there is no alternative to fallback on.

I might be able to revert the upstream commit temporarily.

Thanks,
James

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