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Patch by Brian Brice % bbrice AH newtek.com %
Original thread:
Message-ID: <451DA316.6060001@newtek.com>
Date: Fri, 29 Sep 2006 17:49:58 -0500
Subject: [Ffmpeg-devel] [PATCH] ASF Duration

Originally committed as revision 6407 to svn://svn.ffmpeg.org/ffmpeg/trunk

-b of ffmpeg is bits/sec not kbits/sec, as already was the case for the
AVOption. "k" and "M" suffixes are available though.

Originally committed as revision 6258 to svn://svn.ffmpeg.org/ffmpeg/trunk

    [ Based on a patch by Brian Brice (bbrice at newtek dot com) ]

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Originally committed as revision 6072 to svn://svn.ffmpeg.org/ffmpeg/trunk

replace MULL by MULH + shift in dct32() (code is very slightly faster, and the compiler should be able to optimize the shift away on 64bit archs)

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umovimus at gmail dot com

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patch by Víctor Paesa, wzrlpy $@$ arsystel dot com

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Originally committed as revision 5887 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Victor Paesa, wzrlpy at arsystel com
M    tests/Makefile

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tabs removed and regression.sh fixed (it was missing in the patch) by me

Originally committed as revision 5572 to svn://svn.ffmpeg.org/ffmpeg/trunk

1) search for optimal rice parameters and partition order. i also
modified the stereo method estimation to use this to calculate estimated
bit count instead of using just the pure sums.

2) search for the best fixed prediction order

3) constant subframe mode (good for encoding silence)

Note that the regression test for the decoded wav file also changed.
This is due to FFmpeg's FLAC decoder truncating the file, which it did
before anyway...just at a different cutoff point.  The generated FLAC
files are still 100% lossless.

With this update, FFmpeg's FLAC encoder has speed and compression
somewhere between "flac -1" and "flac -2".  On my machine, it's about
15% faster than "flac -2", and about 10% slower than "flac -1".  The
encoding parameters are identical to "flac -2" (fixed predictors, 1152
blocksize, partition order 0 to 3).

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(bitstream is not backwards compatible, even if refs aren't used)

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