[x264-devel] b frame bias and first b frame

Loren Merritt lorenm at u.washington.edu
Thu Aug 2 11:16:45 CEST 2007


On Thu, 2 Aug 2007, Gabriel Bouvigne wrote:

> Right now, we can see within x264_slicetype_analyse that b frame bias is
> impacting decision to use b frames only from the second b in a row:
>
> Choosing to insert a first B frame after a P/I is not influenced by b
> frame bias, but if it is decided to insert a B, then the next b frames
> decisions are impacted by b frame bias (ie: PB?, but not P?)
>
> Shouldn't B frame bias also impact decision to insert the first B?

slicetype.c line 308

--Loren Merritt
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