1/* 2 * audio resampling 3 * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at> 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22/** 23 * @file 24 * audio resampling 25 * @author Michael Niedermayer <michaelni@gmx.at> 26 */ 27 28#include "libavutil/x86/cpu.h" 29#include "libswresample/resample.h" 30 31#define RESAMPLE_FUNCS(type, opt) \ 32int ff_resample_common_##type##_##opt(ResampleContext *c, void *dst, \ 33 const void *src, int sz, int upd); \ 34int ff_resample_linear_##type##_##opt(ResampleContext *c, void *dst, \ 35 const void *src, int sz, int upd) 36 37RESAMPLE_FUNCS(int16, mmxext); 38RESAMPLE_FUNCS(int16, sse2); 39RESAMPLE_FUNCS(int16, xop); 40RESAMPLE_FUNCS(float, sse); 41RESAMPLE_FUNCS(float, avx); 42RESAMPLE_FUNCS(float, fma3); 43RESAMPLE_FUNCS(float, fma4); 44RESAMPLE_FUNCS(double, sse2); 45 46void swri_resample_dsp_x86_init(ResampleContext *c) 47{ 48 int av_unused mm_flags = av_get_cpu_flags(); 49 50 switch(c->format){ 51 case AV_SAMPLE_FMT_S16P: 52 if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) { 53 c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext 54 : ff_resample_common_int16_mmxext; 55 } 56 if (EXTERNAL_SSE2(mm_flags)) { 57 c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2 58 : ff_resample_common_int16_sse2; 59 } 60 if (EXTERNAL_XOP(mm_flags)) { 61 c->dsp.resample = c->linear ? ff_resample_linear_int16_xop 62 : ff_resample_common_int16_xop; 63 } 64 break; 65 case AV_SAMPLE_FMT_FLTP: 66 if (EXTERNAL_SSE(mm_flags)) { 67 c->dsp.resample = c->linear ? ff_resample_linear_float_sse 68 : ff_resample_common_float_sse; 69 } 70 if (EXTERNAL_AVX(mm_flags)) { 71 c->dsp.resample = c->linear ? ff_resample_linear_float_avx 72 : ff_resample_common_float_avx; 73 } 74 if (EXTERNAL_FMA3(mm_flags)) { 75 c->dsp.resample = c->linear ? ff_resample_linear_float_fma3 76 : ff_resample_common_float_fma3; 77 } 78 if (EXTERNAL_FMA4(mm_flags)) { 79 c->dsp.resample = c->linear ? ff_resample_linear_float_fma4 80 : ff_resample_common_float_fma4; 81 } 82 break; 83 case AV_SAMPLE_FMT_DBLP: 84 if (EXTERNAL_SSE2(mm_flags)) { 85 c->dsp.resample = c->linear ? ff_resample_linear_double_sse2 86 : ff_resample_common_double_sse2; 87 } 88 break; 89 } 90} 91