Sean McGovern
c2d3f56107
fft: avoid a signed overflow
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As a signed integer, 1<<31 overflows, so force it to unsigned.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
2011-09-23 17:02:58 -07:00
Diego Biurrun
5e528cffcf
x86: Add appropriate ifdefs around certain AVX functions.
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nasm versions prior to 2.09 have trouble assembling some of our AVX code.
Protect these sections by preprocessor macros to allow compilation to pass.
2011-05-27 21:18:12 +02:00
Vitor Sessak
9d35fa520e
Add AVX FFT implementation.
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Signed-off-by: Reinhard Tartler <siretart@tauware.de>
2011-04-26 18:25:24 +02:00
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Alex Converse
770c410fbb
Fix ff_imdct_calc_sse() on gcc-4.6
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Gcc 4.6 only preserves the first value when using an array with an "m"
constraint.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-02-02 02:40:05 +00:00
Ramiro Polla
326bf69acc
fft: mark xmm registers as clobbered in ff_imdct_calc_sse
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Originally committed as revision 25363 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-10-06 01:27:02 +00:00
Alex Converse
cb4f12466b
imdct/x86: Use "s->mdct_size" instead of "1 << s->mdct_bits".
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It generates smaller cleaner code.
Originally committed as revision 24887 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-08-23 15:51:09 +00:00
Alex Converse
78b5c97d3e
Convert ff_imdct_half_sse() to yasm.
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This is to avoid split asm sections that attempt to preserve some
registers between sections.
Originally committed as revision 24869 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-08-22 14:39:58 +00:00
Vitor Sessak
881fd7a62f
Move SSE optimized 32-point DCT to its own file. Should fix breakage with YASM
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disabled.
Originally committed as revision 24078 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-06 17:48:23 +00:00
Vitor Sessak
4dcc4f8eaa
SSE optimized 32-point DCT
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Originally committed as revision 24077 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-06 16:58:54 +00:00
Måns Rullgård
c67278098d
Move array specifiers outside DECLARE_ALIGNED() invocations
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Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-22 03:25:11 +00:00
Måns Rullgård
01b2214758
Merge FFTContext and MDCTContext
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Originally committed as revision 19931 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-20 17:30:20 +00:00
Måns Rullgård
f486321395
Move per-arch fft init bits into the corresponding subdirs
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Originally committed as revision 19864 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-15 21:14:14 +00:00
Ramiro Polla
74a841af8b
Replace more uses of __attribute__((aligned)) by DECLARE_ALIGNED.
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Originally committed as revision 19089 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-04 23:25:09 +00:00
Aurelien Jacobs
b250f9c66d
Change semantic of CONFIG_*, HAVE_* and ARCH_*.
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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
Diego Biurrun
a6493a8fbd
Rename libavcodec/i386/ --> libavcodec/x86/.
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It contains optimizations that are not specific to i386 and
libavutil uses this naming scheme already.
Originally committed as revision 16270 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-22 09:12:42 +00:00
