[Asterisk-video] lip sync issues with mp4_play

Dan Julius dan.julius at gmail.com
Tue Nov 11 14:55:46 CST 2008


Hi,

Is there a good reference to better understand how audio/video
synchronization is handled in h324m?

I'm using mp4_play to play a file I created following the mp4 mini tutorial.
I combined an h263 track with a g711 track,
I've noticed that by modifying the bitrate of the video channel I can get
different results, but all of them have lip-sync issues.

where is the av sync supposed to be handled, in the mp4 file, by libh324m,
or the 3g handset?

Thanks for the advice,
Dan
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