libavcodec/flacdsp.c

   1 /*
   2  * Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
   3  *
   4  * This file is part of Libav.
   5  *
   6  * Libav is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * Libav is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with Libav; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #include "libavutil/attributes.h"
  22 #include "libavutil/samplefmt.h"
  23 #include "flacdsp.h"
  24
  25 #define SAMPLE_SIZE 16
  26 #include "flacdsp_template.c"
  27
  28 #undef  SAMPLE_SIZE
  29 #define SAMPLE_SIZE 32
  30 #include "flacdsp_template.c"
  31
  32 av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt)
  33 {
  34     switch (fmt) {
  35     case AV_SAMPLE_FMT_S32:
  36         c->decorrelate[0] = flac_decorrelate_indep_c_32;
  37         c->decorrelate[1] = flac_decorrelate_ls_c_32;
  38         c->decorrelate[2] = flac_decorrelate_rs_c_32;
  39         c->decorrelate[3] = flac_decorrelate_ms_c_32;
  40         break;
  41
  42     case AV_SAMPLE_FMT_S16:
  43         c->decorrelate[0] = flac_decorrelate_indep_c_16;
  44         c->decorrelate[1] = flac_decorrelate_ls_c_16;
  45         c->decorrelate[2] = flac_decorrelate_rs_c_16;
  46         c->decorrelate[3] = flac_decorrelate_ms_c_16;
  47         break;
  48     }
  49 }