FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	305344d89e	avcodec/fft: Add revtab32 for FFTs with more than 65536 samples x86 optimizations are used only for the cases they support (<=65536 samples) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Michael Niedermayer	ae76b84221	avcodec: Extend fft to size 2^17 Asked-for-by: durandal_1707 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	9 years ago
Diego Biurrun	1a094af638	fft: Split MDCT bits off from FFT	9 years ago
Reimar Döffinger	2bb66cc8be	fft_template: Move variables to where they are used. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Reimar Döffinger	1654514ab0	fft: add ff_ prefix to some global arrays. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Reimar Döffinger	e2cd28c926	fft: add missing const. This table was the largest object in FFmpeg's .data, and really should be in .rodata. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	10 years ago
Janne Grunau	650c4300d9	aarch64: NEON float FFT Approximately as fast as the ARM NEON version on Apple's A7.	11 years ago
Michael Niedermayer	99b6357f37	rename CONFIG_FFT_FIXED_32 -> FFT_FIXED_32 This matches FFT_FLOAT Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	794fcf79a8	Rename CONFIG_FFT_FLOAT ---> FFT_FLOAT The define does not originate from configure, so it should not have a name that is CONFIG_-prefixed.	11 years ago
Diego Biurrun	ac0e03bab0	dct/fft: Give consistent names to fixed/float template files	11 years ago
Michael Niedermayer	6bbcae2c16	avcodec/fft: Fix "warning: unused variable" Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Nedeljko Babic	18d7074b4e	libavcodec: Implementation of 32 bit fixed point FFT Iterative implementation of 32 bit fixed point split-radix FFT. Max FFT that can be calculated currently is 2^12. Signed-off-by: Nedeljko Babic <nbabic@mips.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	088f38a4f9	avcodec: Drop unnecessary ff_ name prefixes from static functions	12 years ago
Diego Biurrun	38282149b6	ppc: More consistent arch initialization	12 years ago
Janne Grunau	f101eab1be	x86: call most of the x86 dsp init functions under if (ARCH_X86) Rename the called dsp init functions to *_init_x86.	12 years ago
Nedeljko Babic	b3fdfc8c4e	Optimization of AC3 floating point decoder for MIPS FFT in MIPS implementation is working iteratively instead of "recursively" calling functions for smaller FFT sizes. Some of DSP and format convert utils functions are also optimized. Signed-off-by: Nedeljko Babic <nbabic@mips.com> Reviewed-by: Vitor Sessak <vitor1001@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Alex Converse	7181c4edee	cosmetics: Remove extra newlines at EOF	13 years ago
Vitor Sessak	9d35fa520e	Add AVX FFT implementation. Signed-off-by: Reinhard Tartler <siretart@tauware.de>	14 years ago
Mans Rullgard	dba9852935	ARM: NEON fixed-point FFT Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	bc154882e1	Fixed-point MDCT with 32-bit unscaled output Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	41327cca61	FFT: simplify fft8() Part of the fft8() function corresponds to the BUTTERFLIES macro, so use it. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	7087ce08c8	Fixed-point FFT and MDCT	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Loren Merritt	11ab1e409f	FFT: factor a shuffle out of the inner loop and merge it into fft_permute. 6% faster SSE FFT on Conroe, 2.5% on Penryn. Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net> (cherry picked from commit `e6b1ed693a`)	14 years ago
Loren Merritt	e6b1ed693a	FFT: factor a shuffle out of the inner loop and merge it into fft_permute. 6% faster SSE FFT on Conroe, 2.5% on Penryn. Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>	14 years ago
Diego Elio Pettenò	d4a847711d	Mark C base versions of FFT functions static to fft.c Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `7767d8d361`)	14 years ago
Diego Elio Pettenò	7767d8d361	Mark C base versions of FFT functions static to fft.c Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Måns Rullgård	fe20bdf9db	Indent Originally committed as revision 23958 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	588d28ac08	Remove vestiges of radix-2 FFT Patch (mostly) by Loren Merritt Originally committed as revision 23957 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. 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	15 years ago
Måns Rullgård	2ed6f39944	Replace many includes of libavutil/common.h with what is actually needed 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	15 years ago
Måns Rullgård	1429224b04	Move FFT parts from dsputil.h to fft.h Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	b5ab9b59e0	Fix build with --disable-mdct Originally committed as revision 21764 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	1ffc6e8327	Add ff_init_ff_cos_tabs function and use it in rdft.c to ensure that the 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	15 years ago
Reimar Döffinger	223217746c	Pad ff_cos_tabs and ff_sin_tabs so that index n points to the table for n bits. 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	15 years ago
Reimar Döffinger	4ee726b670	Move/add COSTABLE/SINTABLE macros to dsputil to add extern definitions for ff_cos_* and ff_sin_* without introducing too much code duplication. Originally committed as revision 20243 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Reimar Döffinger	16aec74761	Use hardcoded instead of runtime-calculated ff_cos_* tables if --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	15 years ago
Reimar Döffinger	5bd1fc6fbd	fft_dispatch array should be const Originally committed as revision 20223 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	f486321395	Move per-arch fft init bits into the corresponding subdirs Originally committed as revision 19864 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Måns Rullgård	9ecc414195	ARM: 10l: fix large FFTs Originally committed as revision 19846 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Måns Rullgård	edc0f5dcba	ARM: NEON optimised MDCT Originally committed as revision 19819 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Måns Rullgård	46c32e2654	Prepare for optimised forward MDCT implementations 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	16 years ago
Måns Rullgård	648d792042	ARM: NEON optimised FFT and MDCT Vorbis and AC3 ~3x faster. Parts by Naotoshi Nojiri, naonoj gmail Originally committed as revision 19806 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Reimar Döffinger	faca56191c	The ff_cos_tabs table itself is constant, too, so mark it as such. Originally committed as revision 19784 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
David Conrad	170e6b14f7	Remove long unused ALTIVEC_USE_REFERENCE_C_CODE ifdef; all other references to it were removed in r6606 Originally committed as revision 17997 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	e10252483e	Only enable SSE/3DNOW optimizations when they have been enabled at compilation. Fixes shared build with SSE/3DNOW disabled but MMX and yasm enabled. Originally committed as revision 17451 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	b3183ad034	prettyprinting whitespace cosmetics Originally committed as revision 17443 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Diego Biurrun	bad5537e2c	Use full internal pathname in doxygen @file directives. 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	16 years ago
Alex Converse	6860254044	Add the rdft family of transforms (fft/ifft of an all real sequence) to dsputil. Originally committed as revision 16864 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	eea325645c	Mark ff_fft_end av_cold. Originally committed as revision 16851 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

12 Commits (1895e3a24fd51509532ef5f51dd09ec2953eb203)