[mythtv-users] Problems with VC-1 playback?

[Raymond Wagner]

On 3/17/2014 1:19 AM, Neil Salstrom wrote:
> Has anyone else experienced problems playing back videos with VC-1
> encoding?  We recently tried watching Sherlock Holmes (2009 version with
> Robert Downey Jr.) which is encoded using VC-1.  This was a mkv ripped
> using makemkv and had no additional processing or re-encoding.  This is
> the only movie in our collection with VC-1 but it's also the only one
> that is giving us problems.
>
> The movie will begin to play fine (from either the start or resuming
> from a bookmark) but after a few minutes (random intervals and not at
> the same spots) will dramatically lose audio / video sync and begin
> skipping large numbers of frames at a time.  The movie can be stopped
> then started again from the same position and will be fine for a few
> more minutes.
>
> Relevant info:
>
> mythfrontend --version
> Please attach all output as a file in bug reports.
> MythTV Version : v0.27-187-g30d86b1-dirty
> MythTV Branch : fixes/0.27
> Network Protocol : 77
> Library API : 0.27.20140303-1
> QT Version : 4.8.1
> Options compiled in:
>   linux profile use_hidesyms using_alsa using_pulse using_backend
> using_bindings_perl using_bindings_python using_bindings_php using_dvb
> using_frontend using_hdhomerun using_libcrypto using_libdns_sd
> using_libfftw3 using_libxml2 using_lirc using_mheg using_opengl
> using_opengl_video using_qtwebkit using_qtscript using_qtdbus using_sdl
> using_taglib using_v4l2 using_x11 using_xrandr using_xv
> using_profiletype using_bindings_perl using_bindings_python
> using_bindings_php using_mythtranscode using_opengl using_vdpau
> using_ffmpeg_threads using_mheg using_libass using_libxml2
>
> Starting using -v playback shows large amounts of frame dropping due to
> video behind audio but I also noticed this error:
>
> 2014-03-16 21:55:42.210960 I  Player(0): Video is 5.69804 frames behind
> audio (too slow), dropping frame to catch up.
> 2014-03-16 21:55:42.210995 I  Player(0): Video is 4.92687 frames behind
> audio (too slow), dropping frame to catch up.
> 2014-03-16 21:55:42.211236 I  Player(0): FPS:   22.80 Mean: 43854
> Std.Dev: 68885 CPUs: 100% 7% 12%
> 2014-03-16 21:55:42.211287 I  Player(0): Waiting for video buffers...
> 2014-03-16 21:55:42.226695 W  VDPAU: Display pre-empted.
> 2014-03-16 21:55:42.226720 E  VDPAU: Error at mythrender_vdpau.cpp:1534
> (#2, The display was pre-empted, or a fatal error occurred.)
> 2014-03-16 21:55:42.228232 N  VDPAU: Attempting to re-create VDPAU
> resources.
> 2014-03-16 21:55:42.229162 I  Player(0): Video is 4.10274 frames behind
> audio (too slow), dropping frame to catch up.
>
> I've got the full playback log if anyone is interested...

Could you give some information about the system you are attempting this on?