h261.h 1.4 KB

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  1. /*
  2. * H261 decoder
  3. * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  4. * Copyright (c) 2004 Maarten Daniels
  5. *
  6. * This file is part of FFmpeg.
  7. *
  8. * FFmpeg is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU Lesser General Public
  10. * License as published by the Free Software Foundation; either
  11. * version 2.1 of the License, or (at your option) any later version.
  12. *
  13. * FFmpeg is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16. * Lesser General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU Lesser General Public
  19. * License along with FFmpeg; if not, write to the Free Software
  20. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21. */
  22. /**
  23. * @file libavcodec/h261.c
  24. * h261codec.
  25. */
  26. #ifndef AVCODEC_H261_H
  27. #define AVCODEC_H261_H
  28. #include "mpegvideo.h"
  29. /**
  30. * H261Context
  31. */
  32. typedef struct H261Context{
  33. MpegEncContext s;
  34. int current_mba;
  35. int previous_mba;
  36. int mba_diff;
  37. int mtype;
  38. int current_mv_x;
  39. int current_mv_y;
  40. int gob_number;
  41. int gob_start_code_skipped; // 1 if gob start code is already read before gob header is read
  42. }H261Context;
  43. #define MB_TYPE_H261_FIL 0x800000
  44. #endif /* AVCODEC_H261_H */