[mythtv-users] Playback problems after upgrading from SVN 13635 to 13769

[David Frascone]

On 6/27/07, Ben Dailey <ben at inspiredtechs.com> wrote:
>
> Matt,
>
> If you roll back to 13764 do you still have the issue? There are have been
> two (2) recent ffmpeg sync's one at revision 13655 which introduced an audio
> through a blender type sound because AC3 decoding was moved internally to
> ffmpeg from liba52. Then a second ffmpeg sync was done on 13765 to resolve
> the audio issues created by 13655. Since 13765 mythfrontend crashes after
> playing a a fraction to a few seconds of audio. I haven't had time to build
> a debug release yet and get a ticket filed because I am still trying to
> convince the wife that this is worth my time and the more time it is broken
> that worse my cause :). So to get my system working well again I recompile
> with the following additional configure options: --enable-liba52
> --enable-liba52bin --disable-decoder=ac3 --enable-decoder=liba52. These move
> AC3 decoding out to the external liba52 to do audio decoding this requires
> that you have a52dec installed on your system. I hope this has been helpful
> and look forward to see if this helps solve your problem?
>
> Thanks,
> Ben
>
> On 6/27/07, Matt < skd5aner at gmail.com> wrote:
> >
> > On 6/27/07, Matt <skd5aner at gmail.com> wrote:
> > > Here is my log with -v audio,playback.  I'm only attaching the part of
> >
> > > the log where (I'm fairly sure) the issue is appearing.  Although, I'm
> >
> > > not sure if it points out useful info or not:
> > >
> > > 2007-06-27 11:35:16.639 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:16.639 AO: audio waiting for buffer to fill: have
> > > 4160 want 6144
> > > 2007-06-27 11:35:16.639 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:16.669 AO: audio waiting for buffer to fill: have
> > > 4160 want 6144
> > > 2007-06-27 11:35:16.669 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:16.699 AO: audio waiting for buffer to fill: have
> > > 4160 want 6144
> > > 2007-06-27 11:35:16.699 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:16.729 AO: audio waiting for buffer to fill: have
> > > 4160 want 6144
> > > 2007-06-27 11:35:16.729 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:16.729 Avg read interval was 184 msec. 64K block size
> > > 2007-06-27 11:35:16.739 NVP: prebuffering pause
> > > 2007-06-27 11:35:16.740 NVP: Waiting for prebuffer.. 0
> > > AAAAAAAAAAAAAAAAAAAAAAAAauALAAA
> > > 2007-06-27 11:35:16.759 AO: OutputAudioLoop: audio paused
> > > 2007-06-27 11:35:16.759 AO: 62912 bytes free on soundcard
> > > 2007-06-27 11:35:16.759 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:16.780 Avg read interval was 198 msec. 64K block size
> > > 2007-06-27 11:35:16.789 AO: 62528 bytes free on soundcard
> > > 2007-06-27 11:35:16.789 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:16.819 AO: 62176 bytes free on soundcard
> > > 2007-06-27 11:35:16.819 WriteAudio: Preparing 6144 bytes (1536 frames)
> >
> > > 2007-06-27 11:35:16.849 AO: 61824 bytes free on soundcard
> > > 2007-06-27 11:35:16.849 NVP: Waiting for prebuffer.. 1
> > > AAAAAAAAAAAAAAAAAAAAAAAAAUUuUuL
> > > 2007-06-27 11:35:16.850 WriteAudio: Preparing 6144 bytes (1536 frames)
> >
> > > 2007-06-27 11:35:16.880 AO: 61440 bytes free on soundcard
> > > 2007-06-27 11:35:16.880 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:16.910 AO: 61088 bytes free on soundcard
> > > 2007-06-27 11:35: 16.910 WriteAudio: Preparing 6144 bytes (1536
> > frames)
> > > 2007-06-27 11:35:16.910 Avg read interval was 185 msec. 64K block size
> > > 2007-06-27 11:35:16.940 AO: 60736 bytes free on soundcard
> > > 2007-06-27 11:35: 16.940 WriteAudio: Preparing 6144 bytes (1536
> > frames)
> > > 2007-06-27 11:35:16.960 NVP: Waiting for prebuffer.. 2
> > > uULAAAAAAAAAAAAAAAAAAAAAAUUUUUu
> > > 2007-06-27 11:35:16.970 AO: 60384 bytes free on soundcard
> > > 2007-06-27 11:35:16.970 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:16.971 Avg read interval was 180 msec. 64K block size
> > > 2007-06-27 11:35:16.990 AO: 58112 bytes free on soundcard
> > > 2007-06-27 11:35:17.010 AO: 61952 bytes free on soundcard
> > > 2007-06-27 11:35:17.010 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.011 Avg read interval was 198 msec. 64K block size
> >
> > > 2007-06-27 11:35:17.030 AO: 59680 bytes free on soundcard
> > > 2007-06-27 11:35:17.031 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.051 AO: OutputAudioLoop: Play Event
> > > 2007-06-27 11:35: 17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> >
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35: 17.051 WriteAudio: Preparing 6144 bytes (1536
> > frames)
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35: 17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.051 WriteAudio: Preparing 6144 bytes (1536 frames)
> >
> > > 2007-06-27 11:35:17.051 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.052 WriteAudio: Preparing 6144 bytes (1536 frames)
> > > 2007-06-27 11:35:17.052 AO: Broadcasting free space avail
> > > 2007-06-27 11:35: 17.052 WriteAudio: Preparing 6144 bytes (1536
> > frames)
> > > 2007-06-27 11:35:17.052 AO: audio waiting for buffer to fill: have
> > > 4928 want 6144
> > > 2007-06-27 11:35:17.052 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.071 AO: audio waiting for buffer to fill: have
> > > 4928 want 6144
> > > 2007-06-27 11:35:17.071 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.091 AO: audio waiting for buffer to fill: have
> > > 4928 want 6144
> > > 2007-06-27 11:35:17.091 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.111 AO: Broadcasting free space avail
> > > 2007-06-27 11:35:17.111 WriteAudio: Preparing 6144 bytes (1536 frames)
> >
> > >
> > >
> > > Thanks!
> > > Matt
> > >
> >
> > Just rolled back to 13635 - and the issue disappeared.  This
> > eliminates the upgraded Alsa version as the cause.  I suspect this is
> > due to the recent ffmpeg sync.  Please let me know what I can do to
> > help.  If I don't receive any feedback on the list, I'll submit a bug
> > report.
> >
> > Thanks!
> > Matt
>
>

Have there been any updates to this?  I just realized that this is exactly
the problem I'm seeing.

-Dave




-- 
David Frascone

Oxymoron: Safe Sex.
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