[FFmpeg-devel] [PATCH] Patch cleanup for MPEG 1 & 2 optimizations

Michael Niedermayer michaelni
Sun Apr 13 23:23:34 CEST 2008


On Sun, Apr 13, 2008 at 08:47:35PM +0100, Robert Swain wrote:
> On 13/04/2008, Michael Niedermayer <michaelni at gmx.at> wrote:
> > ping! We need some benchmarks before we can commit your patches.
> 
> System: Intel Core Duo 1.83GHz MacBook with 2GB RAM
> 
> FFmpeg version SVN-r12807, Copyright (c) 2000-2008 Fabrice Bellard, et al.
>   configuration: --enable-gpl --enable-nonfree --enable-postproc
> --enable-swscale --enable-avfilter --enable-avfilter-lavf
> --enable-pthreads --enable-libamr-nb --enable-libamr-wb
> --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libx264
> --cc=ccache gcc --extra-cflags=-march=prescott
>   libavutil version: 49.6.0
>   libavcodec version: 51.54.0
>   libavformat version: 52.13.0
>   libavdevice version: 52.0.0
>   libavfilter version: 0.0.0
>   built on Apr 13 2008 19:43:58, gcc: 4.0.1 (Apple Inc. build 5478)
> 
> I made MPEG-1 and MPEG-2 samples using:
> 
> ffmpeg -ss 00:30:00 -i infile -an -t 00:05:00 -vcodec mpeg(1|2)video
> -qscale 4 -cmp 2 -subcmp 2 -mbd 2 -flags +trell outfile.mpg
[...]
> There doesn't appear to be any significant improvement as far as I can tell.

Can you try with the original patch as well
(http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2007-August/053114.html)

(this might need the cosmetic patches reverted to be applyable and likely not
all hunks will apply ...)

Also theres a .ts file in the mail above with which it could be tried

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The misfortune of the wise is better than the prosperity of the fool.
-- Epicurus
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