generic-library/ffmpeg
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17 Commits

Author SHA1 Message Date
Justin Ruggles
95a98ab3f0 ac3dsp: simplify x86 versions of ac3_max_msb_abs_int16 
Simplifies the code by using cpuflags and a new macro.
Also fixes the invalid use of the MMX2 pshufw operation in the MMX-only
function.
 2012-05-15 15:23:59 -04:00
Justin Ruggles
de7f22ab0c ac3dsp: call femms/emms at the end of float_to_fixed24() for 3DNow and SSE 
Fixes ac3-encode and eac3-encode FATE test failures with SSE2 disabled.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2012-04-12 21:33:04 -07:00
Justin Ruggles
d483bb58c3 ac3dsp: do not use pshufb in ac3_extract_exponents_ssse3() 
We need to do unsigned saturation in order to cover the corner case when the
absolute coefficient value is 16777215 (the maximum value).

Fixes Bug #216
 2012-02-09 21:04:44 -05:00
Ronald S. Bultje
3b15a6d742 config.asm: change %ifdef directives to %if directives. 
This allows combining multiple conditionals in a single statement.
 2012-01-27 10:19:57 +08:00
Dave Yeo
cc73511e8e Fix NASM include directive 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-08-15 11:24:35 -07:00
Ronald S. Bultje
b2c087871d Move x86util.asm from libavcodec/ to libavutil/. 
This allows using it in swscale also.
 2011-08-12 11:43:03 -07:00
Ronald S. Bultje
3a39195b1d Move x86inc.asm to libavutil/. 
This allows using it in libswscale/ also.
 2011-08-12 11:43:02 -07:00
Justin Ruggles
f99a5ef92e ac3dsp: add x86-optimized versions of ac3dsp.extract_exponents(). 2011-07-01 13:02:11 -04:00
Justin Ruggles
70bb747a57 ac3dsp: do not use the ff_* prefix when referencing ff_ac3_bap_bits. 
this should fix the windows builds

Signed-off-by: Martin Storsjö <martin@martin.st>
 2011-05-28 22:43:40 +03:00
Justin Ruggles
6ca23db9cc ac3enc: modify mantissa bit counting to keep bap counts for all values of bap 
instead of just 0 to 4.

This does all the actual bit counting as a final step.
 2011-05-28 12:39:28 -04:00
Diego Biurrun
888fa31eca Fix FSF address copy paste error in some license headers. 2011-05-14 21:32:31 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Justin Ruggles
0f999cfddb ac3enc: add float_to_fixed24() with x86-optimized versions to AC3DSPContext 
and use in scale_coefficients() for the floating-point AC-3 encoder.
 2011-03-17 16:46:48 -04:00
Justin Ruggles
f1efbca5e9 ac3enc: add SIMD-optimized shifting functions for use with the fixed-point AC3 encoder. 2011-03-14 08:45:31 -04:00
Justin Ruggles
1f004fc512 ac3dsp: Change punpckhqdq to movhlps in ac3_max_msb_abs_int16(). 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-16 14:08:34 -05:00
Justin Ruggles
fbb6b49dab ac3enc: Add x86-optimized function to speed up log2_tab(). 
AC3DSPContext.ac3_max_msb_abs_int16() finds the maximum MSB of the absolute
value of each element in an array of int16_t.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-13 16:49:39 -05:00
Justin Ruggles
dda3f0ef48 Add x86-optimized versions of exponent_min(). 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-02-10 15:32:47 -05:00