FFmpeg: FFvfw - What is Video Buffer Verifier and What is it Matter?

[Prodater64]

What is video buffer verifier and what is it matter?

[bilu]

VBV is a sort of constraint on bitrate variance used by MPEG-2.
It set a limit on how much can bitrate increase or decrease.

A higher VBV setting than DVD specifications could mean crashing the player, desync audio/video, other side effects on playback.

I've also been trying to find what it really is, my results here:

http://www.kvcd.net/forum/viewtopic.php?p=64002#64002

Bilu