svq1.h 1.8 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556
  1. /*
  2. * SVQ1 decoder
  3. * ported to MPlayer by Arpi <arpi@thot.banki.hu>
  4. * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru>
  5. *
  6. * Copyright (c) 2002 The Xine project
  7. * Copyright (c) 2002 The FFmpeg project
  8. *
  9. * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net>
  10. *
  11. * This file is part of FFmpeg.
  12. *
  13. * FFmpeg is free software; you can redistribute it and/or
  14. * modify it under the terms of the GNU Lesser General Public
  15. * License as published by the Free Software Foundation; either
  16. * version 2.1 of the License, or (at your option) any later version.
  17. *
  18. * FFmpeg is distributed in the hope that it will be useful,
  19. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  21. * Lesser General Public License for more details.
  22. *
  23. * You should have received a copy of the GNU Lesser General Public
  24. * License along with FFmpeg; if not, write to the Free Software
  25. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  26. */
  27. /**
  28. * @file
  29. * Sorenson Vector Quantizer #1 (SVQ1) video codec.
  30. * For more information of the SVQ1 algorithm, visit:
  31. * http://www.pcisys.net/~melanson/codecs/
  32. */
  33. #ifndef AVCODEC_SVQ1_H
  34. #define AVCODEC_SVQ1_H
  35. #include <stdint.h>
  36. #define SVQ1_BLOCK_SKIP 0
  37. #define SVQ1_BLOCK_INTER 1
  38. #define SVQ1_BLOCK_INTER_4V 2
  39. #define SVQ1_BLOCK_INTRA 3
  40. extern const int8_t *const ff_svq1_inter_codebooks[6];
  41. extern const int8_t *const ff_svq1_intra_codebooks[6];
  42. extern const uint8_t ff_svq1_block_type_vlc[4][2];
  43. extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2];
  44. extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2];
  45. extern const uint16_t ff_svq1_intra_mean_vlc[256][2];
  46. extern const uint16_t ff_svq1_inter_mean_vlc[512][2];
  47. extern const uint16_t ff_svq1_frame_size_table[7][2];
  48. #endif /* AVCODEC_SVQ1_H */