[mythtv-commits] Ticket #9344: Playback stuttering under 0.24 when playing h264 material with VDPAU

MythTV noreply at mythtv.org
Thu Dec 9 19:25:34 UTC 2010


#9344: Playback stuttering under 0.24 when playing h264 material with VDPAU
---------------------------------------+--------------------------
 Reporter:  enigma@…                   |          Owner:  markk
     Type:  Bug Report                 |         Status:  accepted
 Priority:  minor                      |      Milestone:  unknown
Component:  MythTV - Video Playback    |        Version:  0.24
 Severity:  medium                     |     Resolution:
 Keywords:                             |  Ticket locked:  0
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Comment (by enigma@…):

 $ mythfrontend --version
 Please attach all output as a file in bug reports.
 MythTV Version   : es27305
 MythTV Branch    : trunk
 Network Protocol : 63
 Library API      : 0.24.20101028-1
 QT Version       : 4.6.2
 Options compiled in:
  linux debug using_alsa using_jack using_oss using_pulse using_pulseoutput
 using_backend using_bindings_perl using_bindings_python using_directfb
 using_dvb using_firewire using_frontend using_hdhomerun using_hdpvr
 using_iptv using_ivtv using_joystick_menu using_lirc using_mheg
 using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit
 using_v4l using_x11 using_xrandr using_xv using_bindings_perl
 using_bindings_python using_mythtranscode using_opengl using_vdpau
 using_ffmpeg_threads using_live using_mheg


 I have attached logs from playing 3 different recordings that exhibit the
 problem.  The third one seemed to play a little better than the first two
 but did start to skip after a while.  I do not see anything in
 dmesg/messages/daemon.log/kern.log that seem to happen at the same time as
 the issue.  This machine runs mythfrontend only, I do not see any
 processes running that should not be.  Watching top during playback does
 not show very much CPU load or iowait.  nvidia-settings indicates the
 performance mode is set to "Maximum Performance".  The GPU temperature
 varies from 45-50 degrees C.  I have also attached the output of "nvidia-
 settings -q all" captured while playing back a problem recording.

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/9344#comment:8>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center


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