[FFmpeg-cvslog] r12337 - trunk/libavcodec/avcodec.h

[Kostya]

On Wed, Mar 05, 2008 at 08:14:42AM -0800, Mike Melanson wrote:
> aurel wrote:
> >  #define FF_BI_TYPE 7
> 
> Thanks for the comments, Aurel. Does anything know what a BI-frame is?
> My best guess is that it's a frame that is intracoded but that no other
> frames can predict from. Am I close?

Yes you are. I encountered them in VC-1 only.
They are presumably to be used in fast-motion scenes where bidirectional
prediction works not so good. Still sound dubious to me.
 
> -- 
> 	-Mike Melanson