[mythtv-users] Video frame buffering failed too many times [0.26-fixes]

[Igor Cicimov]

On Sun, Jan 6, 2013 at 8:47 AM, Igor Cicimov <icicimov at gmail.com> wrote:

>
> On 06/01/2013 7:51 AM, "Stephen Robertson" <stephengrobertson at gmail.com>
> wrote:
> >
> > Hi all,
> >
> > I'm getting this error when watching live TV.  I don't think I ever
> > see this watching recorded or in progress recordings.
> >
> > I've searched the archives and found references to this but they seem
> > to be from some time ago so I'm not sure whether this is a known
> > problem or whether it was thought to be fixed.
> >
> > As far as I can tell it seems to happen a few minutes after the
> > program has changed (Not the channel, this happens with no user
> > action).
> >
> > This is on a standalone FE connected via gigabit ethernet
> >
> > Any thoughts/suggestions welcome.
> >
> > Stephen
> >
>
> Is the problem showing on all channels or only SD or only HD? All stations
> or one specific? Looks like sound decoding error causing the video playback
> to back off waiting for the sound.
>
> > Logs at:
> > http://pastebin.com/nCzZAdcy
> > http://pastebin.com/0WbCRLBi
> >
> > MythTV Version : v0.26.0-55-g09ac5b2
> > MythTV Branch : fixes/0.26
> > Network Protocol : 75
> > Library API : 0.26.20120822-1
> > QT Version : 4.8.1
> > Options compiled in:
> >  linux profile use_hidesyms using_alsa using_oss using_pulse
> > using_pulseoutput using_backend using_bindings_perl
> > using_bindings_python using_bindings_php using_crystalhd using_dvb
> > using_firewire using_frontend using_hdhomerun using_ceton using_hdpvr
> > using_iptv using_ivtv using_joystick_menu using_libcec using_libcrypto
> > using_libdns_sd using_libxml2 using_lirc using_mheg using_opengl_video
> > using_qtwebkit using_qtscript using_qtdbus using_v4l2 using_x11
> > using_xrandr using_xv using_bindings_perl using_bindings_python
> > using_bindings_php using_mythtranscode using_opengl using_vaapi
> > using_vdpau using_ffmpeg_threads using_live using_mheg using_libass
> > using_libxml2
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://www.mythtv.org/mailman/listinfo/mythtv-users
>
CoreContext audio/audiooutputalsa.cpp:242 (IncPreallocBufferSize) ALSA: Try
to manually increase audio buffer with: echo 128 | sudo tee
/proc/asound/card0/pcm0p/sub0/prealloc
Jan  5 10:38:58 revo01 mythlogserver: mythfrontend[1714]: I CoreContext
mythpainter_ogl.cpp:62 (ClearCache) Clearing OpenGL painter cache.

Yeah have seen this before the sound buffer is set too low. Do as the error
message say:

$ echo 4096 | sudo tee /proc/asound/card0/pcm0p/sub0/prealloc

with 4096 instead 128 to be on the safe side and see if the error goes away.
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