Justin Ruggles
d483bb58c3
ac3dsp: do not use pshufb in ac3_extract_exponents_ssse3()
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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
13 years ago
Ronald S. Bultje
3b15a6d742
config.asm: change %ifdef directives to %if directives.
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This allows combining multiple conditionals in a single statement.
13 years ago
Dave Yeo
cc73511e8e
Fix NASM include directive
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
13 years ago
Ronald S. Bultje
b2c087871d
Move x86util.asm from libavcodec/ to libavutil/.
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This allows using it in swscale also.
13 years ago
Ronald S. Bultje
3a39195b1d
Move x86inc.asm to libavutil/.
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This allows using it in libswscale/ also.
13 years ago
Justin Ruggles
f99a5ef92e
ac3dsp: add x86-optimized versions of ac3dsp.extract_exponents().
14 years ago
Justin Ruggles
70bb747a57
ac3dsp: do not use the ff_* prefix when referencing ff_ac3_bap_bits.
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this should fix the windows builds
Signed-off-by: Martin Storsjö <martin@martin.st>
14 years ago
Justin Ruggles
6ca23db9cc
ac3enc: modify mantissa bit counting to keep bap counts for all values of bap
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instead of just 0 to 4.
This does all the actual bit counting as a final step.
14 years ago
Diego Biurrun
888fa31eca
Fix FSF address copy paste error in some license headers.
14 years ago
Mans Rullgard
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Justin Ruggles
0f999cfddb
ac3enc: add float_to_fixed24() with x86-optimized versions to AC3DSPContext
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and use in scale_coefficients() for the floating-point AC-3 encoder.
14 years ago
Justin Ruggles
f1efbca5e9
ac3enc: add SIMD-optimized shifting functions for use with the fixed-point AC3 encoder.
14 years ago
Justin Ruggles
1f004fc512
ac3dsp: Change punpckhqdq to movhlps in ac3_max_msb_abs_int16().
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
14 years ago
Justin Ruggles
fbb6b49dab
ac3enc: Add x86-optimized function to speed up log2_tab().
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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>
14 years ago
Justin Ruggles
dda3f0ef48
Add x86-optimized versions of exponent_min().
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
14 years ago