[mythtv] [mythtv-commits] Ticket #5900: AO: Generalise upmix and AC-3 encoding

[john]

In testing this patch, I have discovered that timestretch video  
playback is *much* jerkier with it, than without it.  However, a  
mythfrontend log with "-v audio,playback" does not reveal anything  
obviously different.

I have OpenGL vsync turned on.
Max Audio Channels: 5.1
Upmix: Passive
Enable AC3 to SPDIF passthrough: checked
Enable DTS to SPDIF passthrough: checked
AC3 audio upmixer: checked
Sample Rate Conversion: Disabled

I have tried turning OpenGL vsync off, but it did not help.

Any suggestions for some other log levels which may indicate the  
problem?

Thanks,

John