ffmpeg/libavcodec/x86/ac3dsp_mmx.c
Michael Niedermayer 703e920bb7 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: Work around non-standard wc implementations at more places
  fate: work around non-standard wc implementations
  x86: rv40: Mark rv40_weight functions as MMX2; they use MMX2 instructions.
  ac3dsp: simplify x86 versions of ac3_max_msb_abs_int16
  fate: use standard diff options
  tta: Fix comment about channel number; TTA supports >2 channels.
  avfilter: Move ff_get_ref_perms_string() to where it is used.
  build: Add 'check' target to run all compile and test targets.
  indeo3: validate new frame size before resetting decoder
  indeo3: when freeing buffers, set pointers referencing them to NULL as well
  indeo3: initialise pixel planes on allocation
  indeo3: ensure that decoded cell data is in 7-bit range as presumed by decoder
  fate: rename psx-str-v3-mdec to mdec-v3
  fate: convert psx-str to a demuxer test
  lavf: add mdec to is_intra_only() list

Conflicts:
	doc/developer.texi
	libavcodec/indeo3.c
	libavfilter/video.c
	libavformat/utils.c
	tests/fate/demux.mak
	tests/fate/video.mak
	tests/lavf-regression.sh
	tests/ref/vsynth1/cljr
	tests/ref/vsynth1/ffvhuff
	tests/ref/vsynth2/cljr
	tests/ref/vsynth2/ffvhuff

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-05-16 22:32:05 +02:00

94 lines
4.1 KiB
C

/*
* x86-optimized AC-3 DSP utils
* Copyright (c) 2011 Justin Ruggles
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/x86_cpu.h"
#include "dsputil_mmx.h"
#include "libavcodec/ac3dsp.h"
extern void ff_ac3_exponent_min_mmx (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
extern void ff_ac3_exponent_min_mmxext(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
extern void ff_ac3_exponent_min_sse2 (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
extern int ff_ac3_max_msb_abs_int16_mmx (const int16_t *src, int len);
extern int ff_ac3_max_msb_abs_int16_mmx2 (const int16_t *src, int len);
extern int ff_ac3_max_msb_abs_int16_sse2 (const int16_t *src, int len);
extern int ff_ac3_max_msb_abs_int16_ssse3(const int16_t *src, int len);
extern void ff_ac3_lshift_int16_mmx (int16_t *src, unsigned int len, unsigned int shift);
extern void ff_ac3_lshift_int16_sse2(int16_t *src, unsigned int len, unsigned int shift);
extern void ff_ac3_rshift_int32_mmx (int32_t *src, unsigned int len, unsigned int shift);
extern void ff_ac3_rshift_int32_sse2(int32_t *src, unsigned int len, unsigned int shift);
extern void ff_float_to_fixed24_3dnow(int32_t *dst, const float *src, unsigned int len);
extern void ff_float_to_fixed24_sse (int32_t *dst, const float *src, unsigned int len);
extern void ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, unsigned int len);
extern int ff_ac3_compute_mantissa_size_sse2(uint16_t mant_cnt[6][16]);
extern void ff_ac3_extract_exponents_3dnow(uint8_t *exp, int32_t *coef, int nb_coefs);
extern void ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs);
extern void ff_ac3_extract_exponents_ssse3(uint8_t *exp, int32_t *coef, int nb_coefs);
av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact)
{
#if HAVE_YASM
int mm_flags = av_get_cpu_flags();
if (mm_flags & AV_CPU_FLAG_MMX) {
c->ac3_exponent_min = ff_ac3_exponent_min_mmx;
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmx;
c->ac3_lshift_int16 = ff_ac3_lshift_int16_mmx;
c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx;
}
if (mm_flags & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
c->extract_exponents = ff_ac3_extract_exponents_3dnow;
if (!bit_exact) {
c->float_to_fixed24 = ff_float_to_fixed24_3dnow;
}
}
if (mm_flags & AV_CPU_FLAG_MMX2 && HAVE_MMX2) {
c->ac3_exponent_min = ff_ac3_exponent_min_mmxext;
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmx2;
}
if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
c->float_to_fixed24 = ff_float_to_fixed24_sse;
}
if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
c->ac3_exponent_min = ff_ac3_exponent_min_sse2;
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2;
c->float_to_fixed24 = ff_float_to_fixed24_sse2;
c->compute_mantissa_size = ff_ac3_compute_mantissa_size_sse2;
c->extract_exponents = ff_ac3_extract_exponents_sse2;
if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2;
c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2;
}
}
if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSSE3) {
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_ssse3;
if (!(mm_flags & AV_CPU_FLAG_ATOM)) {
c->extract_exponents = ff_ac3_extract_exponents_ssse3;
}
}
#endif
}