do not overwrite codec type if already known, fix conflict between 'raw ' fourcc used for audio and video, ae002_wordup.mov

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reintroduce isom field and read version 1 audio stsd only if file is not isom, fix testclip_wrong_version_1_audio_stsd.mp4

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5% faster filter_mb_fast() on P3


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Basically taken verbatim from RFC 1889.
Patch by Ryan Martell % rdm4 A martellventures P com %
Original thread:
Date: Oct 31, 2006 12:43 AM
Subject: [Ffmpeg-devel] [PATCH] RTCP valid receiver statistics....


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2.5% faster filter_mb_fast() on P3


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PSNR/bitrate is slightly better for my (short) test videos
more tests welcome ...


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back into AVCodecContext for external consumption
patch by Tom Harper % d P thomas P harper A gmail P com %
Original thread:
Date: Nov 2, 2006 1:30 AM
Subject: [Ffmpeg-devel] [patch] snow stats


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Patch taken from the Debian package by Sam Hocevar.


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Patch taken from the Debian package by Sam Hocevar.


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patch by Steve Lhomme, slhomme divxcorp com


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the semantics of ARCH_X86 to mean both 32 and 64 bits.


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