repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 | /** | |
| 23 | * @file | |
| 24 | * H.264 / AVC / MPEG4 prediction functions. | |
| 25 | * @author Michael Niedermayer <michaelni@gmx.at> | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef AVCODEC_H264PRED_H | |
| 29 | #define AVCODEC_H264PRED_H | |
| 30 | ||
| 31 | #include <stddef.h> | |
| 32 | #include <stdint.h> | |
| 33 | ||
| 34 | /** | |
| 35 | * Prediction types | |
| 36 | */ | |
| 37 | //@{ | |
| 38 | #define VERT_PRED 0 | |
| 39 | #define HOR_PRED 1 | |
| 40 | #define DC_PRED 2 | |
| 41 | #define DIAG_DOWN_LEFT_PRED 3 | |
| 42 | #define DIAG_DOWN_RIGHT_PRED 4 | |
| 43 | #define VERT_RIGHT_PRED 5 | |
| 44 | #define HOR_DOWN_PRED 6 | |
| 45 | #define VERT_LEFT_PRED 7 | |
| 46 | #define HOR_UP_PRED 8 | |
| 47 | ||
| 48 | // DC edge (not for VP8) | |
| 49 | #define LEFT_DC_PRED 9 | |
| 50 | #define TOP_DC_PRED 10 | |
| 51 | #define DC_128_PRED 11 | |
| 52 | ||
| 53 | // RV40 specific | |
| 54 | #define DIAG_DOWN_LEFT_PRED_RV40_NODOWN 12 | |
| 55 | #define HOR_UP_PRED_RV40_NODOWN 13 | |
| 56 | #define VERT_LEFT_PRED_RV40_NODOWN 14 | |
| 57 | ||
| 58 | // VP8 specific | |
| 59 | #define TM_VP8_PRED 9 ///< "True Motion", used instead of plane | |
| 60 | #define VERT_VP8_PRED 10 ///< for VP8, #VERT_PRED is the average of | |
| 61 | ///< (left col+cur col x2+right col) / 4; | |
| 62 | ///< this is the "unaveraged" one | |
| 63 | #define HOR_VP8_PRED 14 ///< unaveraged version of #HOR_PRED, see | |
| 64 | ///< #VERT_VP8_PRED for details | |
| 65 | #define DC_127_PRED 12 | |
| 66 | #define DC_129_PRED 13 | |
| 67 | ||
| 68 | #define DC_PRED8x8 0 | |
| 69 | #define HOR_PRED8x8 1 | |
| 70 | #define VERT_PRED8x8 2 | |
| 71 | #define PLANE_PRED8x8 3 | |
| 72 | ||
| 73 | // DC edge | |
| 74 | #define LEFT_DC_PRED8x8 4 | |
| 75 | #define TOP_DC_PRED8x8 5 | |
| 76 | #define DC_128_PRED8x8 6 | |
| 77 | ||
| 78 | // H264/SVQ3 (8x8) specific | |
| 79 | #define ALZHEIMER_DC_L0T_PRED8x8 7 | |
| 80 | #define ALZHEIMER_DC_0LT_PRED8x8 8 | |
| 81 | #define ALZHEIMER_DC_L00_PRED8x8 9 | |
| 82 | #define ALZHEIMER_DC_0L0_PRED8x8 10 | |
| 83 | ||
| 84 | // VP8 specific | |
| 85 | #define DC_127_PRED8x8 7 | |
| 86 | #define DC_129_PRED8x8 8 | |
| 87 | //@} | |
| 88 | ||
| 89 | /** | |
| 90 | * Context for storing H.264 prediction functions | |
| 91 | */ | |
| 92 | typedef struct H264PredContext { | |
| 93 | void(*pred4x4[9 + 3 + 3])(uint8_t *src, const uint8_t *topright, | |
| 94 | ptrdiff_t stride); | |
| 95 | void(*pred8x8l[9 + 3])(uint8_t *src, int topleft, int topright, | |
| 96 | ptrdiff_t stride); | |
| 97 | void(*pred8x8[4 + 3 + 4])(uint8_t *src, ptrdiff_t stride); | |
| 98 | void(*pred16x16[4 + 3 + 2])(uint8_t *src, ptrdiff_t stride); | |
| 99 | ||
| 100 | void(*pred4x4_add[2])(uint8_t *pix /*align 4*/, | |
| 101 | int16_t *block /*align 16*/, ptrdiff_t stride); | |
| 102 | void(*pred8x8l_add[2])(uint8_t *pix /*align 8*/, | |
| 103 | int16_t *block /*align 16*/, ptrdiff_t stride); | |
| 104 | void(*pred8x8l_filter_add[2])(uint8_t *pix /*align 8*/, | |
| 105 | int16_t *block /*align 16*/, int topleft, int topright, ptrdiff_t stride); | |
| 106 | void(*pred8x8_add[3])(uint8_t *pix /*align 8*/, | |
| 107 | const int *block_offset, | |
| 108 | int16_t *block /*align 16*/, ptrdiff_t stride); | |
| 109 | void(*pred16x16_add[3])(uint8_t *pix /*align 16*/, | |
| 110 | const int *block_offset, | |
| 111 | int16_t *block /*align 16*/, ptrdiff_t stride); | |
| 112 | } H264PredContext; | |
| 113 | ||
| 114 | void ff_h264_pred_init(H264PredContext *h, int codec_id, | |
| 115 | const int bit_depth, const int chroma_format_idc); | |
| 116 | void ff_h264_pred_init_arm(H264PredContext *h, int codec_id, | |
| 117 | const int bit_depth, const int chroma_format_idc); | |
| 118 | void ff_h264_pred_init_x86(H264PredContext *h, int codec_id, | |
| 119 | const int bit_depth, const int chroma_format_idc); | |
| 120 | ||
| 121 | #endif /* AVCODEC_H264PRED_H */ |