generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
23,145 Commits 24 Branches 241 Tags 173 MiB
0bf5a0cf46
Commit Graph

49 Commits

Author SHA1 Message Date
Måns Rullgård
1429224b04 Move FFT parts from dsputil.h to fft.h 
Originally committed as revision 22235 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-06 14:34:46 +00:00
Måns Rullgård
b5ab9b59e0 Fix build with --disable-mdct 
Originally committed as revision 21764 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-02-11 23:40:45 +00:00
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
 2009-11-05 18:29:06 +00:00
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
 2009-11-04 17:30:23 +00:00
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
 2009-10-15 17:55:51 +00:00
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
 2009-10-14 21:41:24 +00:00
Reimar Döffinger
5bd1fc6fbd fft_dispatch array should be const 
Originally committed as revision 20223 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-10-13 10:30:10 +00:00
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
 2009-09-15 21:14:14 +00:00
Måns Rullgård
9ecc414195 ARM: 10l: fix large FFTs 
Originally committed as revision 19846 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-14 21:37:41 +00:00
Måns Rullgård
edc0f5dcba ARM: NEON optimised MDCT 
Originally committed as revision 19819 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-09-11 02:24:22 +00:00
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
 2009-09-11 02:24:19 +00:00
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
 2009-09-10 08:50:03 +00:00
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
 2009-09-06 08:53:14 +00:00
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
 2009-03-16 03:56:42 +00:00
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
 2009-02-19 00:54:59 +00:00
Diego Biurrun
b3183ad034 prettyprinting whitespace cosmetics 
Originally committed as revision 17443 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-19 00:06:17 +00:00
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
 2009-02-01 02:00:19 +00:00
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
 2009-01-30 20:15:48 +00:00
Alex Converse
eea325645c Mark ff_fft_end av_cold. 
Originally committed as revision 16851 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-29 17:08:51 +00:00
Alex Converse
3c4ea6d5ab Mark ff_fft_init with av_cold. 
Originally committed as revision 16722 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-22 19:48:10 +00:00
Alex Converse
8f05c995fd Clean up FFT related comments. 
Originally committed as revision 16721 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-22 19:46:23 +00:00
Diego Biurrun
406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences. 
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-19 15:46:40 +00:00
Aurelien Jacobs
b250f9c66d Change semantic of CONFIG_*, HAVE_* and ARCH_*. 
They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-01-13 23:44:16 +00:00
Dominik Mierzejewski
82d1605fe7 Remove duplicated MM_* macros for CPU capabilities from dsputil.h. 
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
 2008-11-03 18:08:00 +00:00
Loren Merritt
d46ac5bfde mdct wrapper function to match fft 
Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 00:38:30 +00:00
Loren Merritt
46803f4f67 optimize imdct_half: 
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
 2008-08-12 00:33:34 +00:00
Loren Merritt
49c0dd754c indent 
Originally committed as revision 14699 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-08-12 00:27:21 +00:00
Loren Merritt
5d0ddd1a9f split-radix FFT 
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
 2008-08-12 00:26:58 +00:00
Loren Merritt
b9fa32082c exploit mdct symmetry 
2% faster vorbis on conroe, k8. 7% on celeron.

Originally committed as revision 14207 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-07-13 15:03:58 +00:00
Måns Rullgård
4f54a3b8b4 indentation 
Originally committed as revision 12478 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-17 19:22:31 +00:00
Måns Rullgård
844ea46aeb clean up FFT SIMD selection 
Originally committed as revision 12477 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-17 19:22:28 +00:00
Diego Biurrun
b78e7197a8 Change license headers to say 'FFmpeg' instead of 'this program/this library' 
and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-10-07 15:30:46 +00:00
Loren Merritt
ebbafcb454 sse implementation of imdct. 
patch mostly by Zuxy Meng (zuxy dot meng at gmail dot com)

Originally committed as revision 6311 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-09-21 16:37:39 +00:00
Loren Merritt
652c59b967 use ff_fft_calc_3dn2 instead of sse on a K8. 
1.5% faster vorbis.

Originally committed as revision 6024 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-19 02:42:20 +00:00
Loren Merritt
1e4ecf26f5 ff_fft_calc_3dn/3dn2/sse: convert intrinsics to inline asm. 
2.5% faster fft, 0.5% faster vorbis.

Originally committed as revision 6023 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-18 23:53:49 +00:00
Loren Merritt
60ae06e77e r5954 broke fft on cpus with 3dnow but without mm3dnow.h 
Originally committed as revision 5974 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-10 18:49:47 +00:00
Loren Merritt
bcfa3e58ee 3dnow2 implementation of imdct. 
6% faster vorbis and wma.

Originally committed as revision 5954 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-08-08 04:01:04 +00:00
Benjamin Larsson
7943355485 ff_fft_init now double checks that the system has mm3dnow.h before 
checking if the cpu can do 3dnow at all. This bug caused amd cpu's
without sse to not have a working fft function. Ie no wma, cook or
vorbis decoder.

Originally committed as revision 5570 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-07-02 02:05:35 +00:00
Zuxy Meng
82eb4b0f1b 3DNow! & Extended 3DNow! versions of FFT 
Patch by Zuxy Meng, zuxy <<dot>> meng >>at<< gmail <<dot>> com
Minor non-functional diff-related fixes by me.

Originally committed as revision 5125 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-03-08 04:13:55 +00:00
Diego Biurrun
5509bffa88 Update licensing information: The FSF changed postal address. 
Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2006-01-12 22:43:26 +00:00
Diego Biurrun
bb270c0896 COSMETICS: tabs --> spaces, some prettyprinting 
Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-22 01:10:11 +00:00
Diego Biurrun
115329f160 COSMETICS: Remove all trailing whitespace. 
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2005-12-17 18:14:38 +00:00
Gildas Bazin
68951ecf0c fft_*() renamed into ff_fft_*() patch by (Gildas Bazin <gbazin at altern dot org>) 
Originally committed as revision 2882 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2004-03-13 21:43:24 +00:00
Michael Niedermayer
983e3246b7 per file doxy 
Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-03-06 11:32:04 +00:00
Michael Niedermayer
db40a39aba AltiVec perf (take 2), plus a couple AltiVec functions by (Romain Dolbeau <dolbeau at irisa dot fr>) 
Originally committed as revision 1464 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-16 21:54:55 +00:00
Romain Dolbeau
e629ab68a7 altivec jumbo patch by (Romain Dolbeau <dolbeaur at club-internet dot fr>) 
Originally committed as revision 1448 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-11 20:51:03 +00:00
Fabrice Bellard
8d268a7d4c fft altivec by Romain Dolbeau - simplified patch, test it on PPC with fft-test and wma decoding 
Originally committed as revision 1417 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-07 18:15:48 +00:00
Fabrice Bellard
bbbb6d6fc3 enabled SSE fft on x86 
Originally committed as revision 1413 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2003-01-07 17:45:24 +00:00
Fabrice Bellard
bb6f569072 new generic FFT/MDCT code for audio codecs 
Originally committed as revision 1088 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2002-10-28 00:34:08 +00:00