msmpeg4.h 3.1 KB

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  1. /*
  2. * MSMPEG4 backend for encoder and decoder
  3. * copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
  4. *
  5. * This file is part of FFmpeg.
  6. *
  7. * FFmpeg is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * FFmpeg is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with FFmpeg; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. */
  21. #ifndef AVCODEC_MSMPEG4_H
  22. #define AVCODEC_MSMPEG4_H
  23. #include <stdint.h>
  24. #include "config.h"
  25. #include "avcodec.h"
  26. #include "mpegvideo.h"
  27. #include "msmpeg4data.h"
  28. #include "put_bits.h"
  29. #define INTER_INTRA_VLC_BITS 3
  30. #define MB_NON_INTRA_VLC_BITS 9
  31. #define MB_INTRA_VLC_BITS 9
  32. #define II_BITRATE 128*1024
  33. #define MBAC_BITRATE 50*1024
  34. #define DC_MAX 119
  35. extern VLC ff_mb_non_intra_vlc[4];
  36. extern VLC ff_inter_intra_vlc;
  37. void ff_msmpeg4_code012(PutBitContext *pb, int n);
  38. void ff_msmpeg4_common_init(MpegEncContext *s);
  39. void ff_msmpeg4_encode_block(MpegEncContext * s, int16_t * block, int n);
  40. void ff_msmpeg4_handle_slices(MpegEncContext *s);
  41. void ff_msmpeg4_encode_motion(MpegEncContext * s, int mx, int my);
  42. int ff_msmpeg4_coded_block_pred(MpegEncContext * s, int n,
  43. uint8_t **coded_block_ptr);
  44. int ff_msmpeg4_encode_init(MpegEncContext *s);
  45. void ff_msmpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
  46. void ff_msmpeg4_encode_ext_header(MpegEncContext *s);
  47. void ff_msmpeg4_encode_mb(MpegEncContext *s, int16_t block[6][64],
  48. int motion_x, int motion_y);
  49. int ff_msmpeg4_decode_init(AVCodecContext *avctx);
  50. int ff_msmpeg4_decode_picture_header(MpegEncContext *s);
  51. int ff_msmpeg4_decode_ext_header(MpegEncContext *s, int buf_size);
  52. int ff_msmpeg4_decode_motion(MpegEncContext * s, int *mx_ptr, int *my_ptr);
  53. int ff_msmpeg4_decode_block(MpegEncContext * s, int16_t * block,
  54. int n, int coded, const uint8_t *scan_table);
  55. int ff_msmpeg4_pred_dc(MpegEncContext *s, int n,
  56. int16_t **dc_val_ptr, int *dir_ptr);
  57. #define CONFIG_MSMPEG4_DECODER (CONFIG_MSMPEG4V1_DECODER || \
  58. CONFIG_MSMPEG4V2_DECODER || \
  59. CONFIG_MSMPEG4V3_DECODER || \
  60. CONFIG_WMV1_DECODER || \
  61. CONFIG_WMV2_DECODER || \
  62. CONFIG_VC1_DECODER)
  63. #define CONFIG_MSMPEG4_ENCODER (CONFIG_MSMPEG4V2_ENCODER || \
  64. CONFIG_MSMPEG4V3_ENCODER || \
  65. CONFIG_WMV1_ENCODER || \
  66. CONFIG_WMV2_ENCODER)
  67. #endif /* AVCODEC_MSMPEG4_H */