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 Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
29 #ifndef AVCODEC_H264DATA_H
30 #define AVCODEC_H264DATA_H
31 
32 #include <stdint.h>
33 #include "libavutil/rational.h"
34 #include "mpegvideo.h"
35 #include "h264.h"
36 
37 
38 static const uint8_t golomb_to_pict_type[5]=
40 
41 static const uint8_t golomb_to_intra4x4_cbp[48]={
42  47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46,
43  16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4,
44  8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41
45 };
46 
47 static const uint8_t golomb_to_inter_cbp[48]={
48  0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13,
49  14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
50  17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
51 };
52 
53 static const uint8_t zigzag_scan[16]={
54  0+0*4, 1+0*4, 0+1*4, 0+2*4,
55  1+1*4, 2+0*4, 3+0*4, 2+1*4,
56  1+2*4, 0+3*4, 1+3*4, 2+2*4,
57  3+1*4, 3+2*4, 2+3*4, 3+3*4,
58 };
59 
60 static const uint8_t field_scan[16]={
61  0+0*4, 0+1*4, 1+0*4, 0+2*4,
62  0+3*4, 1+1*4, 1+2*4, 1+3*4,
63  2+0*4, 2+1*4, 2+2*4, 2+3*4,
64  3+0*4, 3+1*4, 3+2*4, 3+3*4,
65 };
66 
67 static const uint8_t luma_dc_zigzag_scan[16]={
68  0*16 + 0*64, 1*16 + 0*64, 2*16 + 0*64, 0*16 + 2*64,
69  3*16 + 0*64, 0*16 + 1*64, 1*16 + 1*64, 2*16 + 1*64,
70  1*16 + 2*64, 2*16 + 2*64, 3*16 + 2*64, 0*16 + 3*64,
71  3*16 + 1*64, 1*16 + 3*64, 2*16 + 3*64, 3*16 + 3*64,
72 };
73 
74 static const uint8_t luma_dc_field_scan[16]={
75  0*16 + 0*64, 2*16 + 0*64, 1*16 + 0*64, 0*16 + 2*64,
76  2*16 + 2*64, 3*16 + 0*64, 1*16 + 2*64, 3*16 + 2*64,
77  0*16 + 1*64, 2*16 + 1*64, 0*16 + 3*64, 2*16 + 3*64,
78  1*16 + 1*64, 3*16 + 1*64, 1*16 + 3*64, 3*16 + 3*64,
79 };
80 
81 static const uint8_t chroma_dc_scan[4]={
82  (0+0*2)*16, (1+0*2)*16,
83  (0+1*2)*16, (1+1*2)*16,
84 };
85 
86 static const uint8_t chroma422_dc_scan[8]={
87  (0+0*2)*16, (0+1*2)*16,
88  (1+0*2)*16, (0+2*2)*16,
89  (0+3*2)*16, (1+1*2)*16,
90  (1+2*2)*16, (1+3*2)*16,
91 };
92 
93 // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
94 static const uint8_t zigzag_scan8x8_cavlc[64]={
95  0+0*8, 1+1*8, 1+2*8, 2+2*8,
96  4+1*8, 0+5*8, 3+3*8, 7+0*8,
97  3+4*8, 1+7*8, 5+3*8, 6+3*8,
98  2+7*8, 6+4*8, 5+6*8, 7+5*8,
99  1+0*8, 2+0*8, 0+3*8, 3+1*8,
100  3+2*8, 0+6*8, 4+2*8, 6+1*8,
101  2+5*8, 2+6*8, 6+2*8, 5+4*8,
102  3+7*8, 7+3*8, 4+7*8, 7+6*8,
103  0+1*8, 3+0*8, 0+4*8, 4+0*8,
104  2+3*8, 1+5*8, 5+1*8, 5+2*8,
105  1+6*8, 3+5*8, 7+1*8, 4+5*8,
106  4+6*8, 7+4*8, 5+7*8, 6+7*8,
107  0+2*8, 2+1*8, 1+3*8, 5+0*8,
108  1+4*8, 2+4*8, 6+0*8, 4+3*8,
109  0+7*8, 4+4*8, 7+2*8, 3+6*8,
110  5+5*8, 6+5*8, 6+6*8, 7+7*8,
111 };
112 
113 static const uint8_t field_scan8x8[64]={
114  0+0*8, 0+1*8, 0+2*8, 1+0*8,
115  1+1*8, 0+3*8, 0+4*8, 1+2*8,
116  2+0*8, 1+3*8, 0+5*8, 0+6*8,
117  0+7*8, 1+4*8, 2+1*8, 3+0*8,
118  2+2*8, 1+5*8, 1+6*8, 1+7*8,
119  2+3*8, 3+1*8, 4+0*8, 3+2*8,
120  2+4*8, 2+5*8, 2+6*8, 2+7*8,
121  3+3*8, 4+1*8, 5+0*8, 4+2*8,
122  3+4*8, 3+5*8, 3+6*8, 3+7*8,
123  4+3*8, 5+1*8, 6+0*8, 5+2*8,
124  4+4*8, 4+5*8, 4+6*8, 4+7*8,
125  5+3*8, 6+1*8, 6+2*8, 5+4*8,
126  5+5*8, 5+6*8, 5+7*8, 6+3*8,
127  7+0*8, 7+1*8, 6+4*8, 6+5*8,
128  6+6*8, 6+7*8, 7+2*8, 7+3*8,
129  7+4*8, 7+5*8, 7+6*8, 7+7*8,
130 };
131 
132 static const uint8_t field_scan8x8_cavlc[64]={
133  0+0*8, 1+1*8, 2+0*8, 0+7*8,
134  2+2*8, 2+3*8, 2+4*8, 3+3*8,
135  3+4*8, 4+3*8, 4+4*8, 5+3*8,
136  5+5*8, 7+0*8, 6+6*8, 7+4*8,
137  0+1*8, 0+3*8, 1+3*8, 1+4*8,
138  1+5*8, 3+1*8, 2+5*8, 4+1*8,
139  3+5*8, 5+1*8, 4+5*8, 6+1*8,
140  5+6*8, 7+1*8, 6+7*8, 7+5*8,
141  0+2*8, 0+4*8, 0+5*8, 2+1*8,
142  1+6*8, 4+0*8, 2+6*8, 5+0*8,
143  3+6*8, 6+0*8, 4+6*8, 6+2*8,
144  5+7*8, 6+4*8, 7+2*8, 7+6*8,
145  1+0*8, 1+2*8, 0+6*8, 3+0*8,
146  1+7*8, 3+2*8, 2+7*8, 4+2*8,
147  3+7*8, 5+2*8, 4+7*8, 5+4*8,
148  6+3*8, 6+5*8, 7+3*8, 7+7*8,
149 };
150 
151 typedef struct IMbInfo{
152  uint16_t type;
153  uint8_t pred_mode;
154  uint8_t cbp;
155 } IMbInfo;
156 
157 static const IMbInfo i_mb_type_info[26]={
158 {MB_TYPE_INTRA4x4 , -1, -1},
159 {MB_TYPE_INTRA16x16, 2, 0},
160 {MB_TYPE_INTRA16x16, 1, 0},
161 {MB_TYPE_INTRA16x16, 0, 0},
162 {MB_TYPE_INTRA16x16, 3, 0},
163 {MB_TYPE_INTRA16x16, 2, 16},
164 {MB_TYPE_INTRA16x16, 1, 16},
165 {MB_TYPE_INTRA16x16, 0, 16},
166 {MB_TYPE_INTRA16x16, 3, 16},
167 {MB_TYPE_INTRA16x16, 2, 32},
168 {MB_TYPE_INTRA16x16, 1, 32},
169 {MB_TYPE_INTRA16x16, 0, 32},
170 {MB_TYPE_INTRA16x16, 3, 32},
171 {MB_TYPE_INTRA16x16, 2, 15+0},
172 {MB_TYPE_INTRA16x16, 1, 15+0},
173 {MB_TYPE_INTRA16x16, 0, 15+0},
174 {MB_TYPE_INTRA16x16, 3, 15+0},
175 {MB_TYPE_INTRA16x16, 2, 15+16},
176 {MB_TYPE_INTRA16x16, 1, 15+16},
177 {MB_TYPE_INTRA16x16, 0, 15+16},
178 {MB_TYPE_INTRA16x16, 3, 15+16},
179 {MB_TYPE_INTRA16x16, 2, 15+32},
180 {MB_TYPE_INTRA16x16, 1, 15+32},
181 {MB_TYPE_INTRA16x16, 0, 15+32},
182 {MB_TYPE_INTRA16x16, 3, 15+32},
183 {MB_TYPE_INTRA_PCM , -1, -1},
184 };
185 
186 typedef struct PMbInfo{
187  uint16_t type;
189 } PMbInfo;
190 
191 static const PMbInfo p_mb_type_info[5]={
197 };
198 
199 static const PMbInfo p_sub_mb_type_info[4]={
204 };
205 
206 static const PMbInfo b_mb_type_info[23]={
209 {MB_TYPE_16x16 |MB_TYPE_P0L1 , 1, },
230 };
231 
232 static const PMbInfo b_sub_mb_type_info[13]={
233 {MB_TYPE_DIRECT2 , 1, },
235 {MB_TYPE_16x16 |MB_TYPE_P0L1 , 1, },
246 };
247 
248 static const uint8_t dequant4_coeff_init[6][3]={
249  {10,13,16},
250  {11,14,18},
251  {13,16,20},
252  {14,18,23},
253  {16,20,25},
254  {18,23,29},
255 };
256 
257 static const uint8_t dequant8_coeff_init_scan[16] = {
258  0,3,4,3, 3,1,5,1, 4,5,2,5, 3,1,5,1
259 };
260 static const uint8_t dequant8_coeff_init[6][6]={
261  {20,18,32,19,25,24},
262  {22,19,35,21,28,26},
263  {26,23,42,24,33,31},
264  {28,25,45,26,35,33},
265  {32,28,51,30,40,38},
266  {36,32,58,34,46,43},
267 };
268 
269 #endif /* AVCODEC_H264DATA_H */