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16 Commits

Author SHA1 Message Date
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