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* cosmetics: Remove extra newlines at EOFAlex Converse2012-01-27
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* Add AVX FFT implementation.Vitor Sessak2011-04-26
| | | | Signed-off-by: Reinhard Tartler <siretart@tauware.de>
* ARM: NEON fixed-point FFTMans Rullgard2011-04-03
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* Fixed-point MDCT with 32-bit unscaled outputMans Rullgard2011-04-02
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* FFT: simplify fft8()Mans Rullgard2011-04-01
| | | | | | | Part of the fft8() function corresponds to the BUTTERFLIES macro, so use it. Signed-off-by: Mans Rullgard <mans@mansr.com>
* Fixed-point FFT and MDCTMans Rullgard2011-03-31
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* Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* FFT: factor a shuffle out of the inner loop and merge it into fft_permute.Loren Merritt2011-02-13
| | | | | | 6% faster SSE FFT on Conroe, 2.5% on Penryn. Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
* Mark C base versions of FFT functions static to fft.cDiego Elio Pettenò2011-01-26
| | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
* IndentMåns Rullgård2010-07-01
| | | | Originally committed as revision 23958 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove vestiges of radix-2 FFTMåns Rullgård2010-07-01
| | | | | | Patch (mostly) by Loren Merritt Originally committed as revision 23957 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove explicit filename from Doxygen @file commands.Diego Biurrun2010-04-20
| | | | | | | | Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Replace many includes of libavutil/common.h with what is actually neededMåns Rullgård2010-03-09
| | | | | | | This reduces the number of false dependencies on header files and speeds up compilation. Originally committed as revision 22407 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move FFT parts from dsputil.h to fft.hMåns Rullgård2010-03-06
| | | | Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Fix build with --disable-mdctMåns Rullgård2010-02-11
| | | | Originally committed as revision 21764 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add ff_init_ff_cos_tabs function and use it in rdft.c to ensure that theReimar Döffinger2009-11-05
| | | | | | | necessary ff_cos_tabs tables are initialized. Fixes issue 1507 (QDM2 broken since r20237 without hardcoded tables). Originally committed as revision 20464 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Pad ff_cos_tabs and ff_sin_tabs so that index n points to the table for n bits.Reimar Döffinger2009-11-04
| | | | | | | While this "wastes" up to 2x32 bytes it makes the code slightly simpler and less confusing. Originally committed as revision 20449 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move/add COSTABLE/SINTABLE macros to dsputil to add extern definitionsReimar Döffinger2009-10-15
| | | | | | for ff_cos_* and ff_sin_* without introducing too much code duplication. Originally committed as revision 20243 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use hardcoded instead of runtime-calculated ff_cos_* tables ifReimar Döffinger2009-10-14
| | | | | | | --enable-hardcoded-tables was used. Due to the size, the code for the tables is generated at compile time. Originally committed as revision 20232 to svn://svn.ffmpeg.org/ffmpeg/trunk
* fft_dispatch array should be constReimar Döffinger2009-10-13
| | | | Originally committed as revision 20223 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move per-arch fft init bits into the corresponding subdirsMåns Rullgård2009-09-15
| | | | Originally committed as revision 19864 to svn://svn.ffmpeg.org/ffmpeg/trunk
* ARM: 10l: fix large FFTsMåns Rullgård2009-09-14
| | | | Originally committed as revision 19846 to svn://svn.ffmpeg.org/ffmpeg/trunk
* ARM: NEON optimised MDCTMåns Rullgård2009-09-11
| | | | Originally committed as revision 19819 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Prepare for optimised forward MDCT implementationsMåns Rullgård2009-09-11
| | | | | | | | | This adds a function pointer for forward MDCT to FFTContext and initialises it with the existing C function. ff_calc_mdct() is changed to an inline function calling the selected version as done for other fft/mdct functions. Originally committed as revision 19818 to svn://svn.ffmpeg.org/ffmpeg/trunk
* ARM: NEON optimised FFT and MDCTMåns Rullgård2009-09-10
| | | | | | | | Vorbis and AC3 ~3x faster. Parts by Naotoshi Nojiri, naonoj gmail Originally committed as revision 19806 to svn://svn.ffmpeg.org/ffmpeg/trunk
* The ff_cos_tabs table itself is constant, too, so mark it as such.Reimar Döffinger2009-09-06
| | | | Originally committed as revision 19784 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove long unused ALTIVEC_USE_REFERENCE_C_CODE ifdef; all other referencesDavid Conrad2009-03-16
| | | | | | to it were removed in r6606 Originally committed as revision 17997 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Only enable SSE/3DNOW optimizations when they have been enabled at compilation.Diego Biurrun2009-02-19
| | | | | | Fixes shared build with SSE/3DNOW disabled but MMX and yasm enabled. Originally committed as revision 17451 to svn://svn.ffmpeg.org/ffmpeg/trunk
* prettyprinting whitespace cosmeticsDiego Biurrun2009-02-19
| | | | Originally committed as revision 17443 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Use full internal pathname in doxygen @file directives.Diego Biurrun2009-02-01
| | | | | | | Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Add the rdft family of transforms (fft/ifft of an all real sequence) to dsputil.Alex Converse2009-01-30
| | | | Originally committed as revision 16864 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Mark ff_fft_end av_cold.Alex Converse2009-01-29
| | | | Originally committed as revision 16851 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Mark ff_fft_init with av_cold.Alex Converse2009-01-22
| | | | Originally committed as revision 16722 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Clean up FFT related comments.Alex Converse2009-01-22
| | | | Originally committed as revision 16721 to svn://svn.ffmpeg.org/ffmpeg/trunk
* cosmetics: Remove pointless period after copyright statement non-sentences.Diego Biurrun2009-01-19
| | | | Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
* 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
* Remove duplicated MM_* macros for CPU capabilities from dsputil.h.Dominik Mierzejewski2008-11-03
| | | | | | | Add missing one for FF_MM_ALTIVEC to avcodec.h. Rename all the occurences of MM_* to the corresponding FF_MM_*. Originally committed as revision 15770 to svn://svn.ffmpeg.org/ffmpeg/trunk
* mdct wrapper function to match fftLoren Merritt2008-08-12
| | | | Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
* optimize imdct_half:Loren Merritt2008-08-12
| | | | | | | | remove tmp buffer. skip fft reinterleave pass, leaving data in a format more convenient for simd. merge post-rotate with post-reorder. Originally committed as revision 14700 to svn://svn.ffmpeg.org/ffmpeg/trunk
* indentLoren Merritt2008-08-12
| | | | Originally committed as revision 14699 to svn://svn.ffmpeg.org/ffmpeg/trunk
* split-radix FFTLoren Merritt2008-08-12
| | | | | | c is 1.9x faster than previous c (on various x86 cpus), sse is 1.6x faster than previous sse. Originally committed as revision 14698 to svn://svn.ffmpeg.org/ffmpeg/trunk
* exploit mdct symmetryLoren Merritt2008-07-13
| | | | | | 2% faster vorbis on conroe, k8. 7% on celeron. Originally committed as revision 14207 to svn://svn.ffmpeg.org/ffmpeg/trunk
* indentationMåns Rullgård2008-03-17
| | | | Originally committed as revision 12478 to svn://svn.ffmpeg.org/ffmpeg/trunk
* clean up FFT SIMD selectionMåns Rullgård2008-03-17
| | | | Originally committed as revision 12477 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
* sse implementation of imdct.Loren Merritt2006-09-21
| | | | | | patch mostly by Zuxy Meng (zuxy dot meng at gmail dot com) Originally committed as revision 6311 to svn://svn.ffmpeg.org/ffmpeg/trunk
* use ff_fft_calc_3dn2 instead of sse on a K8.Loren Merritt2006-08-19
| | | | | | 1.5% faster vorbis. Originally committed as revision 6024 to svn://svn.ffmpeg.org/ffmpeg/trunk
* ff_fft_calc_3dn/3dn2/sse: convert intrinsics to inline asm.Loren Merritt2006-08-18
| | | | | | 2.5% faster fft, 0.5% faster vorbis. Originally committed as revision 6023 to svn://svn.ffmpeg.org/ffmpeg/trunk
* r5954 broke fft on cpus with 3dnow but without mm3dnow.hLoren Merritt2006-08-10
| | | | Originally committed as revision 5974 to svn://svn.ffmpeg.org/ffmpeg/trunk
* 3dnow2 implementation of imdct.Loren Merritt2006-08-08
| | | | | | 6% faster vorbis and wma. Originally committed as revision 5954 to svn://svn.ffmpeg.org/ffmpeg/trunk
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