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* Change semantic of CONFIG_*, HAVE_* and ARCH_*.Aurelien Jacobs2009-01-13
| | | | | | They are now always defined to either 0 or 1. Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
* write actual min and max frame size to FLAC header. update regression test ↵Justin Ruggles2008-09-14
| | | | | | checksum. Originally committed as revision 15331 to svn://svn.ffmpeg.org/ffmpeg/trunk
* write MD5 checksum to FLAC header. update regression tests.Justin Ruggles2008-09-14
| | | | Originally committed as revision 15326 to svn://svn.ffmpeg.org/ffmpeg/trunk
* write number of samples in FLAC extradata.Justin Ruggles2008-09-14
| | | | | | based on a patch by Mathieu Velten (matmaul gmail com). Originally committed as revision 15324 to svn://svn.ffmpeg.org/ffmpeg/trunk
* fix and simplify frame size check and reencoding in verbatim modeJustin Ruggles2008-08-17
| | | | Originally committed as revision 14811 to svn://svn.ffmpeg.org/ffmpeg/trunk
* update my email address to one which does not depend on my service providerJustin Ruggles2008-08-16
| | | | Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetics: adjust line breaks and vertical alignmentJustin Ruggles2008-08-16
| | | | Originally committed as revision 14795 to svn://svn.ffmpeg.org/ffmpeg/trunk
* use limited range of lpc orders when quantizing coefficientsJustin Ruggles2008-08-16
| | | | Originally committed as revision 14794 to svn://svn.ffmpeg.org/ffmpeg/trunk
* flacenc, lpc: Move LPC code from flacenc.c to new lpc.[ch] files.Ramiro Polla2008-08-16
| | | | Originally committed as revision 14790 to svn://svn.ffmpeg.org/ffmpeg/trunk
* flacenc: Allow more flexible shift calculation in LPC.Ramiro Polla2008-08-16
| | | | Originally committed as revision 14789 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Modify all codecs to report their supported input and output sample format(s).Peter Ross2008-07-31
| | | | Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
* bitstream: move put_sbits() from flacenc.c to bitstream.h and use itRamiro Polla2008-07-13
| | | | | | throughout libavcodec. Originally committed as revision 14204 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Make AVCodec long_names definition conditional depending on CONFIG_SMALL.Stefano Sabatini2008-06-12
| | | | Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use full path for #includes from another directory.Diego Biurrun2008-05-09
| | | | Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add long names to many AVCodec declarations.Stefano Sabatini2008-04-27
| | | | | | patch by Stefano Sabatini, stefano.sabatini-lala poste it Originally committed as revision 13005 to svn://svn.ffmpeg.org/ffmpeg/trunk
* remove redundant context variableJustin Ruggles2008-03-31
| | | | Originally committed as revision 12642 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use 15-bit LPC precision by default. This generally gives better compressionJustin Ruggles2008-03-30
| | | | | | results. Also update Ogg regression test. Originally committed as revision 12630 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Apply 'cold' attribute to init/uninit functions in libavcodecZuxy Meng2008-03-21
| | | | Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
* assert() and note about odd len.Michael Niedermayer2008-02-09
| | | | Originally committed as revision 11884 to svn://svn.ffmpeg.org/ffmpeg/trunk
* optimize apply_welch_window()Michael Niedermayer2008-02-09
| | | | Originally committed as revision 11881 to svn://svn.ffmpeg.org/ffmpeg/trunk
* improve CRC APIAurelien Jacobs2008-01-04
| | | | | | | - don't export any global var - provide either generated or hardcoded tables Originally committed as revision 11409 to svn://svn.ffmpeg.org/ffmpeg/trunk
* remove a branch from an inner loop.Loren Merritt2007-10-27
| | | | | | 1% faster flac encoding. Originally committed as revision 10865 to svn://svn.ffmpeg.org/ffmpeg/trunk
* div -> mulLoren Merritt2007-10-01
| | | | Originally committed as revision 10630 to svn://svn.ffmpeg.org/ffmpeg/trunk
* simplify lpcLoren Merritt2007-09-30
| | | | Originally committed as revision 10628 to svn://svn.ffmpeg.org/ffmpeg/trunk
* unroll finite differences to avoid swapping registers.Loren Merritt2007-09-29
| | | | | | | 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
* encode_residual_fixed(): replace FIR with finite differences.Loren Merritt2007-09-29
| | | | | | | 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
* sse2 version of compute_autocorr().Loren Merritt2007-09-29
| | | | | | | 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
* was computing one more autocorrelation coefficient that was actually usedLoren Merritt2007-09-29
| | | | Originally committed as revision 10613 to svn://svn.ffmpeg.org/ffmpeg/trunk
* replace brute force find_optimal_param() with a closed-form solution.Loren Merritt2007-09-29
| | | | | | | | 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
* gcc isn't smart enough to factor out duplicate storesLoren Merritt2007-09-29
| | | | Originally committed as revision 10611 to svn://svn.ffmpeg.org/ffmpeg/trunk
* 2.5x faster compute_autocorr()Loren Merritt2007-09-28
| | | | | | 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
* unroll encode_residual_lpc(). speedup varies between 1.2x and 1.8x depending ↵Loren Merritt2007-09-27
| | | | | | on lpc order. Originally committed as revision 10596 to svn://svn.ffmpeg.org/ffmpeg/trunk
* oops, potential overflow on really large blocksLoren Merritt2007-09-25
| | | | Originally committed as revision 10587 to svn://svn.ffmpeg.org/ffmpeg/trunk
* optimize encode_residual_lpc()Loren Merritt2007-09-25
| | | | | | 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
* Add av_ prefix to clip functionsReimar Döffinger2007-02-25
| | | | Originally committed as revision 8122 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Fix ASF format parser's broken UTF-16 string handlingZuxy Meng2006-11-06
| | | | | | | | | | | 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
* Rename ABS macro to FFABS.Diego Biurrun2006-10-11
| | | | Originally committed as revision 6666 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Change license headers to say 'FFmpeg' instead of 'this program/this library'Diego Biurrun2006-10-07
| | | | | | and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetic change to adjust alignment.Justin Ruggles2006-07-16
| | | | Originally committed as revision 5767 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Modify preset compression levels to utilize log search.Justin Ruggles2006-07-16
| | | | Originally committed as revision 5766 to svn://svn.ffmpeg.org/ffmpeg/trunk
* log prediction order search methodMichael Niedermayer2006-07-16
| | | | Originally committed as revision 5763 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add lpc order search. This creates new compression levels 6 to 12.Justin Ruggles2006-07-16
| | | | Originally committed as revision 5762 to svn://svn.ffmpeg.org/ffmpeg/trunk
* calculate all coefficients for several orders during cholesky factorization, ↵Michael Niedermayer2006-07-15
| | | | | | 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
* cleanupMichael Niedermayer2006-07-14
| | | | Originally committed as revision 5750 to svn://svn.ffmpeg.org/ffmpeg/trunk
* optionally (use_lpc=2) support Cholesky factorization for finding the lpc ↵Michael Niedermayer2006-07-14
| | | | | | | | | | | | | | | | | coeficients 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
* dither lpc cpeffsMichael Niedermayer2006-07-13
| | | | Originally committed as revision 5727 to svn://svn.ffmpeg.org/ffmpeg/trunk
* allows user-settable block size and fixes related typoJustin Ruggles2006-07-08
| | | | Originally committed as revision 5674 to svn://svn.ffmpeg.org/ffmpeg/trunk
* porder patch by (Justin Ruggles jruggle a t earthlink d ot net)Justin Ruggles2006-07-03
| | | | Originally committed as revision 5593 to svn://svn.ffmpeg.org/ffmpeg/trunk
* 3 lines while -> 1 line for loopMichael Niedermayer2006-07-02
| | | | Originally committed as revision 5577 to svn://svn.ffmpeg.org/ffmpeg/trunk
* simplifyMichael Niedermayer2006-07-02
| | | | Originally committed as revision 5576 to svn://svn.ffmpeg.org/ffmpeg/trunk
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