[Libav-user] Muxing sparse media streams

[Carl Eugen Hoyos]

Nicolas George <george at ...> writes:

> I suspect a lot of players, when showing audio and video, 
> sync on audio. Therefore you will probably need to 
> explicitly insert silence at the places you want it.

WMP and vlc will play files with "holes" in the audio stream 
by increasing video playback speed, other players will just 
continue playing audio and video, leading to massive (and 
increasing) A/V desync, see ticket #4674.

Carl Eugen