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17 Commits

Author SHA1 Message Date
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>
 2011-02-13 15:36:39 +01:00
Diego Elio Pettenò
7767d8d361 Mark C base versions of FFT functions static to fft.c 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 15:32:08 +00:00
Alex Converse
c36b2c010e Revert unintended changes to fft.h from r24890. 
Originally committed as revision 24891 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-23 19:35:58 +00:00
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
 2010-08-23 19:27:24 +00:00
Vitor Sessak
4dcc4f8eaa SSE optimized 32-point DCT 
Originally committed as revision 24077 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-06 16:58:54 +00:00
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
 2010-07-01 23:21:42 +00:00
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
 2010-06-30 20:11:27 +00:00
Måns Rullgård
49bd8e4b84 Fix grammar errors in documentation 
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-30 15:38:06 +00:00
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
 2010-06-24 09:42:34 +00:00
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
 2010-03-23 19:48:16 +00:00
Måns Rullgård
a8bb9ea532 ARM: NEON optimised RDFT 
Originally committed as revision 22641 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-23 03:35:02 +00:00
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
 2010-03-21 11:31:11 +00:00
Vitor Sessak
2758004fce DCT: remove unused field from context 
Originally committed as revision 22615 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-21 11:24:01 +00:00
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
 2010-03-20 21:27:03 +00:00
Måns Rullgård
c70948315b Create a public API for FFT family of functions 
Originally committed as revision 22291 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-07 21:56:45 +00:00
Måns Rullgård
41ea18fb0d Give RDFT types more meaningful names 
Originally committed as revision 22290 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-07 21:47:44 +00:00
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