[mythtv] Stuttering audio in transcoded recordings

Joseph A. Caputo jcaputo1 at comcast.net
Thu Jun 2 13:13:55 UTC 2005

On Thursday 02 June 2005 9:08, Joseph A. Caputo wrote:
> Ever since 5/18 CVS (was running 4/26 before that), all of my newly 
> transcoded (to MPEG-4) shows have stuttering audio, and the frontend 
> spits out "WriteAudio: buffer underrun" messages all over the place.  
> have no problems playing non-transcoded (MPEG-2, recorded with an 
> M-179) content, or LiveTV.  Also older transcoded shows play fine, 
> which leads me to believe the problem is in the encoding of the 
> MPEG-4 .nuv, not the playback.
> Note that I'm currently running CVS from 5/31 with the aviseek patch 
> (#7) applied.
> Has anyone else seen this behavior?  I know that there was an ffmpeg 
> re-sync recently, and also some changes in the auto-transcode settings 
> (though I think I've addressed the auto-transcode issues).
> I'm going to try turning of libmpeg2 decoding as suggested in another 
> thread, and I will also try rebuilding without the aviseek patch; 
> anyone else have any thoughts?
> -JAC

Oops, sorry for the excess bandwidth usage... I meant to send this to 
the -users list to make sure it's not something simple before bothering 
the -dev list with it.  Mea culpa!


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