FFmpeg

Commit Graph

Author	SHA1	Message	Date
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	38282149b6	ppc: More consistent arch initialization	12 years ago
Diego Biurrun	42b9150b0d	fft: Remove pointless #ifdefs around function declarations	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
Diego Biurrun	adbfc605f6	doxygen: Consistently use '@' instead of '\' for Doxygen markup. Signed-off-by: Diego Biurrun <diego@biurrun.de>	14 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	7087ce08c8	Fixed-point FFT and MDCT	14 years ago
Mans Rullgard	e87a6f0dc9	Move ff_dct_init_mmx declaration to dct.h This was missed in `0aded94`. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	0aded9484d	Move dct and rdft definitions to separate files This leaves fft.h with only the core FFT and MDCT definitions thus making it more managable. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	4538729afe	Move sine windows to a separate file These windows do not really belong in fft/mdct files and were easily confused with the similarly named tables used by rdft. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	a45fbda994	Move ff_kbd_window_init() to a separate file This function is not tightly coupled to mdct, and it's in the way of making a fixed-point mdct implementation. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	26f548bb59	fft: remove inline wrappers for function pointers This removes the rather pointless wrappers (one not even inline) for calling the fft_calc and related function pointers. Signed-off-by: Mans Rullgard <mans@mansr.com>	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
Alex Converse	c36b2c010e	Revert unintended changes to fft.h from r24890. Originally committed as revision 24891 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Nathan Caldwell	af00dddeca	aacenc: Rename Psy3gpp* structs to AacPsy* This allows cleaner implementation of other psymodels using the existing structs. It also will make it easier to interchange individual parts of the psymodel to create hybrid models. Patch by: Nathan Caldwell <saintdev@gmail.com> Originally committed as revision 24890 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Vitor Sessak	4dcc4f8eaa	SSE optimized 32-point DCT Originally committed as revision 24077 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
Vitor Sessak	06d01188e9	More mp{1,2,3} 32-point DCT transform to our common DCT framework. Should allow for future SIMD optimizations. Originally committed as revision 23912 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	49bd8e4b84	Fix grammar errors in documentation Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	dd93649b71	Remove VLA in ff_kbd_window_init, limit window size to 1024 Originally committed as revision 23755 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Vitor Sessak	e1484ebed6	Implement the discrete sine/cosine transforms DCT-I and DST-I Originally committed as revision 22649 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	a8bb9ea532	ARM: NEON optimised RDFT Originally committed as revision 22641 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Vitor Sessak	e30ab38e94	Call DCT by function pointer. Needed for any future ASM implementation and allows further cleanup. Originally committed as revision 22617 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Vitor Sessak	2758004fce	DCT: remove unused field from context Originally committed as revision 22615 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	2881c83127	Call rdft by function pointer Call the RDFT by a function pointer like other FFT related transforms. This makes instruction set optimized versions possible. Based on patch by Alex Converse. Originally committed as revision 22609 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	c70948315b	Create a public API for FFT family of functions Originally committed as revision 22291 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Måns Rullgård	41ea18fb0d	Give RDFT types more meaningful names Originally committed as revision 22290 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

45 Commits (0b46d6f3efa7c647a42d3e77d09c274f611b752b)