[FFmpeg-devel] [PATCH] ffv1enc: better heuristic to calculate initial states

[Michael Niedermayer]

On Mon, Feb 11, 2013 at 11:06:31AM +0100, Peter B. wrote:
> Quoting Michael Niedermayer <michaelni at gmx.at>:
> 
> >Slightly improves compression of 2pass files
> 
> I've ran tests on 2 files:
> 1) 10 minutes VHS
> 2) concatenated version of 4SIF YUV422 files from Derf's collection
> 
> With these parameters:
> coder=1, context=1, slices=24, slicecrc=1 (for both GOP=1 and GOP=300).
> 
> --------------------------------------
> Patched version produces the following size-%, compared to unpatched:
> 
> Video 1 (10 minute VHS):
> 99,999611616% (gop=1)
> 99,999579233% (gop=300)
> 
> Video 2 (Concat Derf 422 4sif):
> 99,997673223% (gop=1)
> 99,997550287% (gop=300)
> --------------------------------------
> 
> I've also verified that all produced files have matching framemd5
> checksums with the original.

patch applied

thanks for testing

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Its not that you shouldnt use gotos but rather that you should write
readable code and code with gotos often but not always is less readable
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