- 31 3月, 2008 1 次提交
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由 Justin Ruggles 提交于
results. Also update Ogg regression test. Originally committed as revision 12630 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 21 3月, 2008 1 次提交
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由 Zuxy Meng 提交于
Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 09 2月, 2008 2 次提交
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由 Michael Niedermayer 提交于
Originally committed as revision 11884 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
Originally committed as revision 11881 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 05 1月, 2008 1 次提交
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由 Aurelien Jacobs 提交于
- don't export any global var - provide either generated or hardcoded tables Originally committed as revision 11409 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 27 10月, 2007 1 次提交
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由 Loren Merritt 提交于
1% faster flac encoding. Originally committed as revision 10865 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 01 10月, 2007 1 次提交
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由 Loren Merritt 提交于
Originally committed as revision 10630 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 30 9月, 2007 4 次提交
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由 Loren Merritt 提交于
Originally committed as revision 10628 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
1.5x faster encode_residual_fixed(). overall flac encoding: 3% faster at compression_levels 0-2. Originally committed as revision 10625 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
4x faster order 2, 3.5x order 3, 3x order 4. overall flac encoding: 35% faster at compression_levels 0-2, no effect at higher levels. Originally committed as revision 10624 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
4x faster than c (somehow, even though doubles only allow 2x simd). overal flac encoding: 15-50% faster on core2, 4-11% on k8, 3-13% on p4. Originally committed as revision 10621 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 29 9月, 2007 3 次提交
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由 Loren Merritt 提交于
Originally committed as revision 10613 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
overall flac encoding: 4-15% faster. output is not identical to the previous algorithm due to occasional rounding errors, but the differece is less than .0005% bitrate. Originally committed as revision 10612 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
Originally committed as revision 10611 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 28 9月, 2007 1 次提交
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由 Loren Merritt 提交于
overall flac encoding: 15-50% faster on core2, 8-30% on k8, 2-20% on p4 (depending on compression_level) Originally committed as revision 10606 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 27 9月, 2007 1 次提交
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由 Loren Merritt 提交于
Originally committed as revision 10596 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 26 9月, 2007 2 次提交
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由 Loren Merritt 提交于
Originally committed as revision 10587 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Loren Merritt 提交于
37%/45%/90% faster on core2/k8/p4, making flac encoding overall 15%/17%/40% faster at compression_level>=8 (less at low levels). Originally committed as revision 10585 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 25 2月, 2007 1 次提交
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由 Reimar Döffinger 提交于
Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 06 11月, 2006 1 次提交
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由 Zuxy Meng 提交于
1. Add a PUT_UTF8 macro to common.h; code borrowed from libavcodec/flacenc.c. 2. Make use of the macro in flacenc.c Patch by Zuxy Meng % zuxy P meng A gmail P com % Original thread: Date: Nov 5, 2006 9:56 AM Subject: [Ffmpeg-devel] PUT_UTF8 & asf format enhancement Originally committed as revision 6911 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 12 10月, 2006 1 次提交
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由 Diego Biurrun 提交于
Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 07 10月, 2006 1 次提交
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由 Diego Biurrun 提交于
and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 17 7月, 2006 2 次提交
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由 Justin Ruggles 提交于
Originally committed as revision 5767 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Justin Ruggles 提交于
Originally committed as revision 5766 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 16 7月, 2006 3 次提交
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由 Michael Niedermayer 提交于
Originally committed as revision 5763 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Justin Ruggles 提交于
Originally committed as revision 5762 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
calculate all coefficients for several orders during cholesky factorization, the resulting coefficients are not strictly optimal though as there is a small difference in the autocorrelation matrixes which is ignored for the smaller orders Originally committed as revision 5758 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 15 7月, 2006 2 次提交
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由 Michael Niedermayer 提交于
Originally committed as revision 5750 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
this will find the coefficients which minimize the sum of the squared errors, levinson-durbin recursion OTOH is only strictly correct if the autocorrelation matrix is a toeplitz matrix which it is only if the blocksize is infinite, this is also why applying a window (like the welch winodw we currently use) improves the lpc coefficients generated by levinson-durbin recursion ... optionally (use_lpc>2) support iterative linear least abs() solver using cholesky factorization with adjusted weights in each iteration compression gain for both is small, and multiple passes are of course dead slow Originally committed as revision 5747 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 13 7月, 2006 1 次提交
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由 Michael Niedermayer 提交于
Originally committed as revision 5727 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 09 7月, 2006 1 次提交
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由 Justin Ruggles 提交于
Originally committed as revision 5674 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 03 7月, 2006 1 次提交
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由 Justin Ruggles 提交于
Originally committed as revision 5593 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 02 7月, 2006 7 次提交
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由 Michael Niedermayer 提交于
Originally committed as revision 5577 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
Originally committed as revision 5576 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
Originally committed as revision 5575 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
Originally committed as revision 5574 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Michael Niedermayer 提交于
Originally committed as revision 5573 to svn://svn.ffmpeg.org/ffmpeg/trunk
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由 Justin Ruggles 提交于
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
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由 Michael Niedermayer 提交于
Originally committed as revision 5571 to svn://svn.ffmpeg.org/ffmpeg/trunk
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- 28 6月, 2006 1 次提交
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由 Justin Ruggles 提交于
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). Originally committed as revision 5536 to svn://svn.ffmpeg.org/ffmpeg/trunk
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