[mythtv-commits] Ticket #9341: H264 doesn't play back watchably on Windows frontend

MythTV noreply at mythtv.org
Tue Dec 7 03:34:19 UTC 2010

#9341: H264 doesn't play back watchably on Windows frontend
     Reporter:  Jerry Rubinow <jerrymr@…>        |      Owner:  nigel
         Type:  Bug Report                       |     Status:  new
     Priority:  minor                            |  Milestone:  unknown
    Component:  Ports - Windows                  |    Version:  0.23-fixes
     Severity:  medium                           |   Keywords:
Ticket locked:  0                                |
 When playing back a 720p 60fps H264 recording on a Windows frontend with
 ION video, I get lots of pauses in the video.  Playing back a 720p 60fps
 MPEG recording, there are no pauses.  The H264 is from an HD-PVR with
 default bitrate setting and the MPEG is from an HDHR.  In both cases, CPU
 usage for mythfrontend, according to Task Manager, is in the 30% to 40%
 range.  Using Direct3D for playback, no filters.

 To eliminate potential network issue, I created a Videos directory locally
 and copied the recording there, but it still had the pauses.  I tried
 muting sound to eliminate audio issues, problem still exhibited.

 Log of session attached, session consists of starting up mythfrontend with
 -v playback,timestamp, starting playback of video, waiting long enough for
 the OSD to go away and observe pauses happening, and then exiting.

 mythfrontend --version output:

 MythTV Version   : 24158
 MythTV Branch    : branches/release-0-23-fixes
 Network Protocol : 56
 Library API      : 0.23.20100314-1
 QT Version       : 4.5.3
 Options compiled in:
  profile using_backend using_frontend using_hdhomerun using_mheg
 using_opengl_video using_opengl_vsync using_qtwebkit using_opengl
 using_ffmpeg_threads using_mheg

 Let me know if I can provide any other info.

Ticket URL: <http://svn.mythtv.org/trac/ticket/9341>
MythTV <http://svn.mythtv.org/trac>
MythTV Media Center

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