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 "resample.h" 29 30 #define TEMPLATE_RESAMPLE_S16 31 #include "resample_template.c" 32 #undef TEMPLATE_RESAMPLE_S16 33 34 #define TEMPLATE_RESAMPLE_S32 35 #include "resample_template.c" 36 #undef TEMPLATE_RESAMPLE_S32 37 38 #define TEMPLATE_RESAMPLE_FLT 39 #include "resample_template.c" 40 #undef TEMPLATE_RESAMPLE_FLT 41 42 #define TEMPLATE_RESAMPLE_DBL 43 #include "resample_template.c" 44 #undef TEMPLATE_RESAMPLE_DBL 45 swri_resample_dsp_init(ResampleContext * c)46void swri_resample_dsp_init(ResampleContext *c) 47 { 48 switch(c->format){ 49 case AV_SAMPLE_FMT_S16P: 50 c->dsp.resample_one = resample_one_int16; 51 c->dsp.resample = c->linear ? resample_linear_int16 : resample_common_int16; 52 break; 53 case AV_SAMPLE_FMT_S32P: 54 c->dsp.resample_one = resample_one_int32; 55 c->dsp.resample = c->linear ? resample_linear_int32 : resample_common_int32; 56 break; 57 case AV_SAMPLE_FMT_FLTP: 58 c->dsp.resample_one = resample_one_float; 59 c->dsp.resample = c->linear ? resample_linear_float : resample_common_float; 60 break; 61 case AV_SAMPLE_FMT_DBLP: 62 c->dsp.resample_one = resample_one_double; 63 c->dsp.resample = c->linear ? resample_linear_double : resample_common_double; 64 break; 65 } 66 67 if (ARCH_X86) swri_resample_dsp_x86_init(c); 68 } 69