libswresample/resample_dsp.c
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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 "resample.h"
 
 #define TEMPLATE_RESAMPLE_S16
 #include "resample_template.c"
 #undef TEMPLATE_RESAMPLE_S16
 
 #define TEMPLATE_RESAMPLE_S32
 #include "resample_template.c"
 #undef TEMPLATE_RESAMPLE_S32
 
 #define TEMPLATE_RESAMPLE_FLT
 #include "resample_template.c"
 #undef TEMPLATE_RESAMPLE_FLT
 
 #define TEMPLATE_RESAMPLE_DBL
 #include "resample_template.c"
 #undef TEMPLATE_RESAMPLE_DBL
 
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 void swri_resample_dsp_init(ResampleContext *c)
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 {
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     switch(c->format){
     case AV_SAMPLE_FMT_S16P:
         c->dsp.resample_one = resample_one_int16;
         c->dsp.resample     = c->linear ? resample_linear_int16 : resample_common_int16;
         break;
     case AV_SAMPLE_FMT_S32P:
         c->dsp.resample_one = resample_one_int32;
         c->dsp.resample     = c->linear ? resample_linear_int32 : resample_common_int32;
         break;
     case AV_SAMPLE_FMT_FLTP:
         c->dsp.resample_one = resample_one_float;
         c->dsp.resample     = c->linear ? resample_linear_float : resample_common_float;
         break;
     case AV_SAMPLE_FMT_DBLP:
         c->dsp.resample_one = resample_one_double;
         c->dsp.resample     = c->linear ? resample_linear_double : resample_common_double;
         break;
     }
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     if (ARCH_X86) swri_resample_dsp_x86_init(c);
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 }