replaygain.h 1.6 KB

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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. #ifndef AVUTIL_REPLAYGAIN_H
  20. #define AVUTIL_REPLAYGAIN_H
  21. #include <stdint.h>
  22. /**
  23. * ReplayGain information (see
  24. * http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification).
  25. * The size of this struct is a part of the public ABI.
  26. */
  27. typedef struct AVReplayGain {
  28. /**
  29. * Track replay gain in microbels (divide by 100000 to get the value in dB).
  30. * Should be set to INT32_MIN when unknown.
  31. */
  32. int32_t track_gain;
  33. /**
  34. * Peak track amplitude, with 100000 representing full scale (but values
  35. * may overflow). 0 when unknown.
  36. */
  37. uint32_t track_peak;
  38. /**
  39. * Same as track_gain, but for the whole album.
  40. */
  41. int32_t album_gain;
  42. /**
  43. * Same as track_peak, but for the whole album,
  44. */
  45. uint32_t album_peak;
  46. } AVReplayGain;
  47. #endif /* AVUTIL_REPLAYGAIN_H */