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  1. /*
  2.  *
  3.  * This file is part of FFmpeg.
  4.  *
  5.  * FFmpeg is free software; you can redistribute it and/or
  6.  * modify it under the terms of the GNU Lesser General Public
  7.  * License as published by the Free Software Foundation; either
  8.  * version 2.1 of the License, or (at your option) any later version.
  9.  *
  10.  * FFmpeg is distributed in the hope that it will be useful,
  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13.  * Lesser General Public License for more details.
  14.  *
  15.  * You should have received a copy of the GNU Lesser General Public
  16.  * License along with FFmpeg; if not, write to the Free Software
  17.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18.  */
  19.  
  20. #ifndef AVUTIL_REPLAYGAIN_H
  21. #define AVUTIL_REPLAYGAIN_H
  22.  
  23. #include <stdint.h>
  24.  
  25. /**
  26.  * ReplayGain information (see
  27.  * http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification).
  28.  * The size of this struct is a part of the public ABI.
  29.  */
  30. typedef struct AVReplayGain {
  31.     /**
  32.      * Track replay gain in microbels (divide by 100000 to get the value in dB).
  33.      * Should be set to INT32_MIN when unknown.
  34.      */
  35.     int32_t track_gain;
  36.     /**
  37.      * Peak track amplitude, with 100000 representing full scale (but values
  38.      * may overflow). 0 when unknown.
  39.      */
  40.     uint32_t track_peak;
  41.     /**
  42.      * Same as track_gain, but for the whole album.
  43.      */
  44.     int32_t album_gain;
  45.     /**
  46.      * Same as track_peak, but for the whole album,
  47.      */
  48.     uint32_t album_peak;
  49. } AVReplayGain;
  50.  
  51. #endif /* AVUTIL_REPLAYGAIN_H */
  52.