replaygain.h 1.6 KB

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