[mythtv-users] Suddenly started getting 'WriteAudio: buffer underrun'

[Philippe Van Der Gucht]

More info, this is an extract of my frontend log:
2010-10-02 21:44:54.168 The realtime priority setting is not enabled.
2010-10-02 21:44:54.168 TV: Changing from None to WatchingLiveTV
2010-10-02 21:44:54.168 TV: State is LiveTV & mctx == ctx
2010-10-02 21:44:54.169 TV: UpdateOSDInput done
2010-10-02 21:44:54.169 TV: UpdateLCD done
2010-10-02 21:44:54.169 TV: ITVRestart done
2010-10-02 21:44:54.172 Video timing method: USleep with busy wait
2010-10-02 21:44:54.236 VDPAU: Added 2 output surfaces (total 4, max 4)
2010-10-02 21:44:56.783 ProgramInfo(): Updated pathname '':'' -> 
'18773_20101002214456.mpg'
2010-10-02 21:44:56.785 FilterManager: Failed to load filter 
'colorspace', no such filter exists
2010-10-02 21:45:02.672 VDPAU: Created 2 output surfaces.
2010-10-02 21:45:02.672 VDPAU: Created VDPAU render device 1920x1080
2010-10-02 21:45:02.709 NVP(5): Forcing decode extra audio option on 
(Video method requires it).
2010-10-02 21:45:02.711 FilterManager: Failed to load filter 
'colorspace', no such filter exists
2010-10-02 21:45:02.711 AFD: Opened codec 0xb03bc7d0, id(MPEG2VIDEO) 
type(Video)
2010-10-02 21:45:02.711 AFD: codec MP2 has 2 channels
2010-10-02 21:45:02.712 AFD: Opened codec 0xb141a400, id(MP2) type(Audio)
2010-10-02 21:45:02.712 AFD Error: Could not find decoder for codec 
(DVB_TELETEXT), ignoring.
2010-10-02 21:45:02.826 Opening audio device 'default'. ch 2(2) sr 48000 
(reenc 0)
2010-10-02 21:45:02.826 Opening ALSA audio device 'default'.
2010-10-02 21:45:02.875 mixer unable to find control Master 1
2010-10-02 21:45:02.876 NVP(5): Enabling Audio
2010-10-02 21:45:02.913 VDPAU: Added 2 output surfaces (total 4, max 4)
2010-10-02 21:45:06.210 NVP(5): prebuffering pause
2010-10-02 21:45:06.387 NVP(5): prebuffering pause

 From here on it's nothing but these 'prebuffering pause' in the log...

Philippe Van Der Gucht wrote:
> Greetings!
> 
> I had a smooth running mythtv 0.22+fixes system with a HVR-4000 and 2 
> days ago recordings started to stutter.
> 
> This only happens with certain channels of my satellite provider 
> 'tv-vlaanderen'.
> I am almost certain they changed the encoding of their channels.
> 
> However when playing the recordings via the console with mplayer 
> everything runs smoothly!
> This is how I know mythtv's internal player does not know how to handle 
> them.
> 
> I have upgraded to 0.23.0+fixes but to no avail.
> 
> Can I at least use an external player for recordings as a workaround? I 
> have not found how.
> 
> Thanks for any help.
> 
>