h264pred.h 2.9 KB

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  1. /*
  2. * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
  3. * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
  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. /**
  22. * @file libavcodec/h264pred.h
  23. * H.264 / AVC / MPEG4 prediction functions.
  24. * @author Michael Niedermayer <michaelni@gmx.at>
  25. */
  26. #ifndef AVCODEC_H264PRED_H
  27. #define AVCODEC_H264PRED_H
  28. #include "libavutil/common.h"
  29. #include "dsputil.h"
  30. /**
  31. * Prediction types
  32. */
  33. //@{
  34. #define VERT_PRED 0
  35. #define HOR_PRED 1
  36. #define DC_PRED 2
  37. #define DIAG_DOWN_LEFT_PRED 3
  38. #define DIAG_DOWN_RIGHT_PRED 4
  39. #define VERT_RIGHT_PRED 5
  40. #define HOR_DOWN_PRED 6
  41. #define VERT_LEFT_PRED 7
  42. #define HOR_UP_PRED 8
  43. #define LEFT_DC_PRED 9
  44. #define TOP_DC_PRED 10
  45. #define DC_128_PRED 11
  46. #define DIAG_DOWN_LEFT_PRED_RV40_NODOWN 12
  47. #define HOR_UP_PRED_RV40_NODOWN 13
  48. #define VERT_LEFT_PRED_RV40_NODOWN 14
  49. #define DC_PRED8x8 0
  50. #define HOR_PRED8x8 1
  51. #define VERT_PRED8x8 2
  52. #define PLANE_PRED8x8 3
  53. #define LEFT_DC_PRED8x8 4
  54. #define TOP_DC_PRED8x8 5
  55. #define DC_128_PRED8x8 6
  56. #define ALZHEIMER_DC_L0T_PRED8x8 7
  57. #define ALZHEIMER_DC_0LT_PRED8x8 8
  58. #define ALZHEIMER_DC_L00_PRED8x8 9
  59. #define ALZHEIMER_DC_0L0_PRED8x8 10
  60. //@}
  61. /**
  62. * Context for storing H.264 prediction functions
  63. */
  64. typedef struct H264PredContext{
  65. void (*pred4x4 [9+3+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
  66. void (*pred8x8l [9+3])(uint8_t *src, int topleft, int topright, int stride);
  67. void (*pred8x8 [4+3+4])(uint8_t *src, int stride);
  68. void (*pred16x16[4+3])(uint8_t *src, int stride);
  69. void (*pred4x4_add [2])(uint8_t *pix/*align 4*/, const DCTELEM *block/*align 16*/, int stride);
  70. void (*pred8x8l_add [2])(uint8_t *pix/*align 8*/, const DCTELEM *block/*align 16*/, int stride);
  71. void (*pred8x8_add [3])(uint8_t *pix/*align 8*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
  72. void (*pred16x16_add[3])(uint8_t *pix/*align 16*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
  73. }H264PredContext;
  74. void ff_h264_pred_init(H264PredContext *h, int codec_id);
  75. #endif /* AVCODEC_H264PRED_H */