Alex Converse
3c4ea6d5ab
Mark ff_fft_init with av_cold.
Originally committed as revision 16722 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Alex Converse
8f05c995fd
Clean up FFT related comments.
Originally committed as revision 16721 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
Diego Biurrun
406792e7b0
cosmetics: Remove pointless period after copyright statement non-sentences.
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
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
16 years ago
Loren Merritt
d46ac5bfde
mdct wrapper function to match fft
Originally committed as revision 14703 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
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
17 years ago
Loren Merritt
49c0dd754c
indent
Originally committed as revision 14699 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
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
17 years ago
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
17 years ago
Måns Rullgård
4f54a3b8b4
indentation
Originally committed as revision 12478 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
Måns Rullgård
844ea46aeb
clean up FFT SIMD selection
Originally committed as revision 12477 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago
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
18 years ago
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
18 years ago
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
19 years ago
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
19 years ago
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
19 years ago
Loren Merritt
bcfa3e58ee
3dnow2 implementation of imdct.
6% faster vorbis and wma.
Originally committed as revision 5954 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
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
19 years ago
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
19 years ago
Diego Biurrun
5509bffa88
Update licensing information: The FSF changed postal address.
Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Diego Biurrun
bb270c0896
COSMETICS: tabs --> spaces, some prettyprinting
Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
Diego Biurrun
115329f160
COSMETICS: Remove all trailing whitespace.
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
19 years ago
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
21 years ago
Michael Niedermayer
983e3246b7
per file doxy
Originally committed as revision 1634 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
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
22 years ago
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
22 years ago
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
22 years ago
Fabrice Bellard
bbbb6d6fc3
enabled SSE fft on x86
Originally committed as revision 1413 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago
Fabrice Bellard
bb6f569072
new generic FFT/MDCT code for audio codecs
Originally committed as revision 1088 to svn://svn.ffmpeg.org/ffmpeg/trunk
22 years ago