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/*
* audio resampling
* Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
*
* 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
*/
/**
* @file
* audio resampling
* @author Michael Niedermayer <michaelni@gmx.at>
*/
#include "libavutil/x86/cpu.h"
#include "libswresample/resample.h"
#define RESAMPLE_FUNCS(type, opt) \
int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \
const void *src, int sz, int upd); \
int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \
const void *src, int sz, int upd)
RESAMPLE_FUNCS(int16, mmxext);
RESAMPLE_FUNCS(int16, sse2);
RESAMPLE_FUNCS(int16, xop);
RESAMPLE_FUNCS(float, sse);
RESAMPLE_FUNCS(float, avx);
RESAMPLE_FUNCS(float, fma3);
RESAMPLE_FUNCS(float, fma4);
RESAMPLE_FUNCS(double, sse2);
av_cold void swri_resample_dsp_x86_init(ResampleContext *c)
{
int av_unused mm_flags = av_get_cpu_flags();
/* FIXME use phase_count on asm */
if (c->phase_count != 1 << c->phase_shift)
return;
switch(c->format){
case AV_SAMPLE_FMT_S16P:
if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext
: ff_resample_common_int16_mmxext;
}
if (EXTERNAL_SSE2(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2
: ff_resample_common_int16_sse2;
}
if (EXTERNAL_XOP(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_int16_xop
: ff_resample_common_int16_xop;
}
break;
case AV_SAMPLE_FMT_FLTP:
if (EXTERNAL_SSE(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_float_sse
: ff_resample_common_float_sse;
}
if (EXTERNAL_AVX_FAST(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_float_avx
: ff_resample_common_float_avx;
}
if (EXTERNAL_FMA3_FAST(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_float_fma3
: ff_resample_common_float_fma3;
}
if (EXTERNAL_FMA4(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_float_fma4
: ff_resample_common_float_fma4;
}
break;
case AV_SAMPLE_FMT_DBLP:
if (EXTERNAL_SSE2(mm_flags)) {
c->dsp.resample = c->linear ? ff_resample_linear_double_sse2
: ff_resample_common_double_sse2;
}
break;
}
}
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