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  1. /*
  2.  * GSM common header
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg 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.  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #ifndef AVCODEC_GSM_H
  22. #define AVCODEC_GSM_H
  23.  
  24. /* bytes per block */
  25. #define GSM_BLOCK_SIZE     33
  26. #define GSM_MS_BLOCK_SIZE  65
  27. #define MSN_MIN_BLOCK_SIZE 41
  28.  
  29. /* samples per block */
  30. #define GSM_FRAME_SIZE 160
  31.  
  32. enum GSMModes {
  33.     GSM_13000 = 0,
  34.     MSN_12400,
  35.     MSN_11800,
  36.     MSN_11200,
  37.     MSN_10600,
  38.     MSN_10000,
  39.     MSN_9400,
  40.     MSN_8800,
  41.     MSN_8200,
  42.     NUM_GSM_MODES
  43. };
  44.  
  45. #endif /* AVCODEC_GSM_H */
  46.