[FFmpeg-devel] [PATCH] Issue 543, clarification of -bt in docs

Loren Merritt lorenm
Fri Jul 25 23:21:44 CEST 2008

On Fri, 25 Jul 2008, Jason Garrett-Glaser wrote:

>> btw, one thing i wanted to ask you since a while already ...
>> Are you interrested in merging the x264 & lavc ratecontrol code?
>> The reason why iam asking is that IMHO the current state of it being
>> "forked" in x264 and being improved there isnt ideal. And that will
>> become just worse over time as people improve both independantly ...
> The main problem I see is that x264's ratecontrol code depends heavily
> on an Xvid-style low-resolution lookahead, especially the VBV code.
> I'm not familiar enough with LAVC's ratecontrol to know whether LAVC
> has similar, but if it doesn't, that is a dealbreaker.

lavc instead runs fullpel motion estimation before ratecontrol. The 
fullpel sads should be usable for the same purposes. I don't know which 
is more accurate at predicting complexity.

--Loren Merritt

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