[mythtv-users] Mythtv V0.21 - Problems FFing or Rewinding mpg files using Internal player

[Simon Hart]

Hi,

I'm having problems using FastForward or Rewinding mpg videos  using the Internal video player in Mythtv 0.21. They seem to play OK then if I FF using the '>' key 3X is OK but as soon as I press again the OSD shows X5, the video freezes for a second then drops back to the MythVideo gallery and that's it. Rewind is equally unstable. I've tried just about everything I can think of, video resolution, changing nvidia settings in xorg.conf, playing with the new playback profiles etc etc. At the moment I can play videos using mplayer (which seems to work perfectly) but I'd like to use the Internal player for adjustable FF and editing etc.

I'm running Mythbuntu on Gutsy using Mythtv 0.20 upgraded via backports to 0.21. Hardware is AMD X2 64 proc, 1G RAM and Nvidia GeForce 7200GS graphics card.

Here's the relevant excerpt from the Frontend log file:
2008-03-23 11:47:01.798 TV: Attempting to change from None to WatchingPreRecorded
2008-03-23 11:47:01.899 DPMS Deactivated 
2008-03-23 11:47:02.049 AFD: Opened codec 0x8456220, id(MPEG2VIDEO) type(Video)
2008-03-23 11:47:02.049 AFD: codec MP3 has 2 channels
2008-03-23 11:47:02.049 AFD: Opened codec 0x8505130, id(MP3) type(Audio)
2008-03-23 11:47:02.049 AFD: Opened codec 0x8346f90, id(DVB_SUBTITLE) type(Subtitle)
2008-03-23 11:47:02.053 Opening audio device 'default'. ch 2(2) sr 48000
2008-03-23 11:47:02.053 Opening ALSA audio device 'default'.
2008-03-23 11:47:02.109 Mixer unable to find control Master
2008-03-23 11:47:02.109 Mixer unable to find control Master
2008-03-23 11:47:02.109 Mixer unable to find control Master
2008-03-23 11:47:02.276 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Texture'
2008-03-23 11:47:02.331 OSD Theme Dimensions W: 640 H: 480
2008-03-23 11:47:02.650 TV: Changing from None to WatchingPreRecorded
2008-03-23 11:47:02.652 The realtime priority setting is not enabled.
2008-03-23 11:47:02.760 OpenGLVideoSync()
2008-03-23 11:47:02.793 Video timing method: SGI OpenGL
2008-03-23 11:47:06.675 WriteAudio: buffer underrun
2008-03-23 11:47:09.012 ~OpenGLVideoSync() -- begin
2008-03-23 11:47:09.012 ~OpenGLVideoSync() -- middle
2008-03-23 11:47:09.012 ~OpenGLVideoSync() -- end
2008-03-23 11:47:09.205 TV: Attempting to change from WatchingPreRecorded to None
2008-03-23 11:47:09.265 TV: Changing from WatchingPreRecorded to None
2008-03-23 11:47:10.319 DPMS Reactivated.

There seems to be a buffer underrun just before the video stops - is this a bug or a config problem with my setup.

BTW 0.21 seems much more stable with my setup than 0.20 - thanks to all the developers for their hard work.

Any help would be appreciated.
Cheers,

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