[mythtv] AV-Sync problem

[Michael T. Dean]

On 04/23/2009 03:23 PM, Ed W wrote:
> I *think* this is an issue I see on UK DVB on any black scenes - I had
> presumed that the gap between video and audio was getting too large (but
> still acceptable).  I haven't had a chance to debug this in any detail
> though

Do you guys have

Extra audio buffering
Enable this setting if MythTV is playing "crackly" audio and you are 
using hardware encoding. This setting will have no effect on MPEG-4 or 
RTJPEG video. MythTV will keep extra audio data in its internal buffers 
to workaround this bug.

(In trunk, the help is:
Enable this setting if MythTV is playing "crackly" audio.  This setting 
affects digital tuners (QAM/DVB/ATSC) and hardware encoders.  It will 
have no effect on framegrabbers (MPEG-4/RTJPEG).  MythTV will keep extra 
audio data in its internal buffers to workaround this bug. )

enabled?  It's whole purpose it to work around the issue you describe.  
If it is enabled, perhaps the real-world conditions have gotten worse 
over the years.

Note, also, that's not the setting:

Aggressive Sound card Buffering
If enabled, MythTV will pretend to have a smaller sound card buffer than 
is really present.  This may speed up seeking, but can also cause 
playback problems.

Which does basically the opposite of Extra audio buffering.

Mike