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h264data.h
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1 /*
2  * H26L/H264/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  * @brief
25  * H264 / AVC / MPEG4 part10 codec data table
26  * @author Michael Niedermayer <michaelni@gmx.at>
27  */
28 
29 #ifndef AVCODEC_H264DATA_H
30 #define AVCODEC_H264DATA_H
31 
32 #include <stdint.h>
33 
34 #include "libavutil/rational.h"
35 #include "mpegvideo.h"
36 #include "h264.h"
37 
38 static const uint8_t golomb_to_pict_type[5] = {
39  AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I,
40  AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI
41 };
42 
43 static const uint8_t golomb_to_intra4x4_cbp[48] = {
44  47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46,
45  16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4,
46  8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41
47 };
48 
49 static const uint8_t golomb_to_inter_cbp[48] = {
50  0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13,
51  14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
52  17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
53 };
54 
55 static const uint8_t zigzag_scan[16+1] = {
56  0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4,
57  1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
58  1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4,
59  3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
60 };
61 
62 static const uint8_t chroma_dc_scan[4] = {
63  (0 + 0 * 2) * 16, (1 + 0 * 2) * 16,
64  (0 + 1 * 2) * 16, (1 + 1 * 2) * 16,
65 };
66 
67 static const uint8_t chroma422_dc_scan[8] = {
68  (0 + 0 * 2) * 16, (0 + 1 * 2) * 16,
69  (1 + 0 * 2) * 16, (0 + 2 * 2) * 16,
70  (0 + 3 * 2) * 16, (1 + 1 * 2) * 16,
71  (1 + 2 * 2) * 16, (1 + 3 * 2) * 16,
72 };
73 
74 typedef struct IMbInfo {
75  uint16_t type;
76  uint8_t pred_mode;
77  uint8_t cbp;
78 } IMbInfo;
79 
80 static const IMbInfo i_mb_type_info[26] = {
81  { MB_TYPE_INTRA4x4, -1, -1 },
82  { MB_TYPE_INTRA16x16, 2, 0 },
83  { MB_TYPE_INTRA16x16, 1, 0 },
84  { MB_TYPE_INTRA16x16, 0, 0 },
85  { MB_TYPE_INTRA16x16, 3, 0 },
86  { MB_TYPE_INTRA16x16, 2, 16 },
87  { MB_TYPE_INTRA16x16, 1, 16 },
88  { MB_TYPE_INTRA16x16, 0, 16 },
89  { MB_TYPE_INTRA16x16, 3, 16 },
90  { MB_TYPE_INTRA16x16, 2, 32 },
91  { MB_TYPE_INTRA16x16, 1, 32 },
92  { MB_TYPE_INTRA16x16, 0, 32 },
93  { MB_TYPE_INTRA16x16, 3, 32 },
94  { MB_TYPE_INTRA16x16, 2, 15 + 0 },
95  { MB_TYPE_INTRA16x16, 1, 15 + 0 },
96  { MB_TYPE_INTRA16x16, 0, 15 + 0 },
97  { MB_TYPE_INTRA16x16, 3, 15 + 0 },
98  { MB_TYPE_INTRA16x16, 2, 15 + 16 },
99  { MB_TYPE_INTRA16x16, 1, 15 + 16 },
100  { MB_TYPE_INTRA16x16, 0, 15 + 16 },
101  { MB_TYPE_INTRA16x16, 3, 15 + 16 },
102  { MB_TYPE_INTRA16x16, 2, 15 + 32 },
103  { MB_TYPE_INTRA16x16, 1, 15 + 32 },
104  { MB_TYPE_INTRA16x16, 0, 15 + 32 },
105  { MB_TYPE_INTRA16x16, 3, 15 + 32 },
106  { MB_TYPE_INTRA_PCM, -1, -1 },
107 };
108 
109 typedef struct PMbInfo {
110  uint16_t type;
111  uint8_t partition_count;
112 } PMbInfo;
113 
114 static const PMbInfo p_mb_type_info[5] = {
115  { MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
116  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2 },
117  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2 },
118  { MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 4 },
119  { MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_REF0, 4 },
120 };
121 
122 static const PMbInfo p_sub_mb_type_info[4] = {
123  { MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
124  { MB_TYPE_16x8 | MB_TYPE_P0L0, 2 },
125  { MB_TYPE_8x16 | MB_TYPE_P0L0, 2 },
126  { MB_TYPE_8x8 | MB_TYPE_P0L0, 4 },
127 };
128 
129 static const PMbInfo b_mb_type_info[23] = {
130  { MB_TYPE_DIRECT2 | MB_TYPE_L0L1, 1, },
131  { MB_TYPE_16x16 | MB_TYPE_P0L0, 1, },
132  { MB_TYPE_16x16 | MB_TYPE_P0L1, 1, },
133  { MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1, 1, },
134  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
135  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
136  { MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
137  { MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
138  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L1, 2, },
139  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L1, 2, },
140  { MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
141  { MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
142  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
143  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
144  { MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
145  { MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
146  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
147  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0, 2, },
148  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
149  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
150  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
151  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
152  { MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
153 };
154 
155 static const PMbInfo b_sub_mb_type_info[13] = {
156  { MB_TYPE_DIRECT2, 1, },
157  { MB_TYPE_16x16 | MB_TYPE_P0L0, 1, },
158  { MB_TYPE_16x16 | MB_TYPE_P0L1, 1, },
159  { MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1, 1, },
160  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
161  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 2, },
162  { MB_TYPE_16x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
163  { MB_TYPE_8x16 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 2, },
164  { MB_TYPE_16x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
165  { MB_TYPE_8x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
166  { MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P1L0, 4, },
167  { MB_TYPE_8x8 | MB_TYPE_P0L1 | MB_TYPE_P1L1, 4, },
168  { MB_TYPE_8x8 | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
169 };
170 
171 #endif /* AVCODEC_H264DATA_H */
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