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

Jason Garrett-Glaser darkshikari
Fri Jul 25 22:53:47 CEST 2008

> great, commit!
I'll probably commit the short version or similar in a bit.

> 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.

One thing LAVC might be interested is what I'm currently working on, a
trellis algorithm for optimal B-frame decision, which could be
combined with the RD b-frame decision in LAVC for even further

Dark Shikari

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