[mythtv-commits] Ticket #13223: ffmpeg 3.4 and VDPAU problem with some h264 videos

MythTV noreply at mythtv.org
Thu Mar 5 11:30:09 UTC 2020

#13223: ffmpeg 3.4 and VDPAU problem with some h264 videos
 Reporter:  Peter Bennett            |          Owner:  Peter Bennett
     Type:  Bug Report - General     |         Status:  closed
 Priority:  minor                    |      Milestone:  unknown
Component:  MythTV - Video Playback  |        Version:  Master Head
 Severity:  medium                   |     Resolution:  Fixed
 Keywords:                           |  Ticket locked:  0

Comment (by mark-kendall):

 Replying to [comment:50 tlathm]:
 > Thanks for the reply Mark...just noticed this today. However note that
 apparently nobody's been able to reproduce this issues on 64 bit systems.
 So unless someone tests this on 32 bit x86 I'm not sure it would tell us
 much. It would be great if that were the case. I've been staying on 29.1
 for now but I'd hate to do that indefinitely. Thanks again!

 Ah - missed the 32bit reference. I can't test on a 32bit system.

 As discussed with warpme on irc, versions up to and including v30 used the
 old, deprecated VDPAU/FFmpeg API (some code was copied over from the
 previous FFmpeg versions to keep VDPAU decoding going).

 V31/master now use the 'official' VDAPU FFmpeg API - and most of the
 decoding and rendering code is very different.

 I can't do anything with this until someone actually does some testing on
 a problematic system (I think warpme has that in hand). That said - any
 fixes that may be required will not be backported.

Ticket URL: <https://code.mythtv.org/trac/ticket/13223#comment:51>
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