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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 /**
23  * @file
24  * @brief
25  *     H.264 / AVC / MPEG-4 part10 codec data table
26  * @author Michael Niedermayer <michaelni@gmx.at>
27  */
28 
29 #include <stdint.h>
30 
31 #include "libavutil/avutil.h"
32 
33 #include "h264_parse.h"
34 #include "h264data.h"
35 #include "mpegutils.h"
36 
37 const uint8_t ff_h264_golomb_to_pict_type[5] = {
38     AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, AV_PICTURE_TYPE_I,
39     AV_PICTURE_TYPE_SP, AV_PICTURE_TYPE_SI
40 };
41 
42 const uint8_t ff_h264_golomb_to_intra4x4_cbp[48] = {
43     47, 31, 15, 0,  23, 27, 29, 30, 7,  11, 13, 14, 39, 43, 45, 46,
44     16, 3,  5,  10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1,  2,  4,
45     8,  17, 18, 20, 24, 6,  9,  22, 25, 32, 33, 34, 36, 40, 38, 41
46 };
47 
48 const uint8_t ff_h264_golomb_to_inter_cbp[48] = {
49     0,  16, 1,  2,  4,  8,  32, 3,  5,  10, 12, 15, 47, 7,  11, 13,
50     14, 6,  9,  31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46,
51     17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41
52 };
53 
54 const uint8_t ff_h264_chroma_dc_scan[4] = {
55     (0 + 0 * 2) * 16, (1 + 0 * 2) * 16,
56     (0 + 1 * 2) * 16, (1 + 1 * 2) * 16,
57 };
58 
59 const uint8_t ff_h264_chroma422_dc_scan[8] = {
60     (0 + 0 * 2) * 16, (0 + 1 * 2) * 16,
61     (1 + 0 * 2) * 16, (0 + 2 * 2) * 16,
62     (0 + 3 * 2) * 16, (1 + 1 * 2) * 16,
63     (1 + 2 * 2) * 16, (1 + 3 * 2) * 16,
64 };
65 
66 const IMbInfo ff_h264_i_mb_type_info[26] = {
67     { MB_TYPE_INTRA4x4,  -1,  -1 },
68     { MB_TYPE_INTRA16x16, 2,   0 },
69     { MB_TYPE_INTRA16x16, 1,   0 },
70     { MB_TYPE_INTRA16x16, 0,   0 },
71     { MB_TYPE_INTRA16x16, 3,   0 },
72     { MB_TYPE_INTRA16x16, 2,  16 },
73     { MB_TYPE_INTRA16x16, 1,  16 },
74     { MB_TYPE_INTRA16x16, 0,  16 },
75     { MB_TYPE_INTRA16x16, 3,  16 },
76     { MB_TYPE_INTRA16x16, 2,  32 },
77     { MB_TYPE_INTRA16x16, 1,  32 },
78     { MB_TYPE_INTRA16x16, 0,  32 },
79     { MB_TYPE_INTRA16x16, 3,  32 },
80     { MB_TYPE_INTRA16x16, 2,  15 +  0 },
81     { MB_TYPE_INTRA16x16, 1,  15 +  0 },
82     { MB_TYPE_INTRA16x16, 0,  15 +  0 },
83     { MB_TYPE_INTRA16x16, 3,  15 +  0 },
84     { MB_TYPE_INTRA16x16, 2,  15 + 16 },
85     { MB_TYPE_INTRA16x16, 1,  15 + 16 },
86     { MB_TYPE_INTRA16x16, 0,  15 + 16 },
87     { MB_TYPE_INTRA16x16, 3,  15 + 16 },
88     { MB_TYPE_INTRA16x16, 2,  15 + 32 },
89     { MB_TYPE_INTRA16x16, 1,  15 + 32 },
90     { MB_TYPE_INTRA16x16, 0,  15 + 32 },
91     { MB_TYPE_INTRA16x16, 3,  15 + 32 },
92     { MB_TYPE_INTRA_PCM,  -1, -1 },
93 };
94 
95 const PMbInfo ff_h264_p_mb_type_info[5] = {
96     { MB_TYPE_16x16 | MB_TYPE_P0L0,                               1 },
97     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },
98     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                2 },
99     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                4 },
100     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_REF0, 4 },
101 };
102 
103 const PMbInfo ff_h264_p_sub_mb_type_info[4] = {
104     { MB_TYPE_16x16 | MB_TYPE_P0L0, 1 },
105     { MB_TYPE_16x8  | MB_TYPE_P0L0, 2 },
106     { MB_TYPE_8x16  | MB_TYPE_P0L0, 2 },
107     { MB_TYPE_8x8   | MB_TYPE_P0L0, 4 },
108 };
109 
110 const PMbInfo ff_h264_b_mb_type_info[23] = {
111     { MB_TYPE_DIRECT2 | MB_TYPE_L0L1,                                              1, },
112     { MB_TYPE_16x16   | MB_TYPE_P0L0,                                              1, },
113     { MB_TYPE_16x16   | MB_TYPE_P0L1,                                              1, },
114     { MB_TYPE_16x16   | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },
115     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
116     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
117     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
118     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
119     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },
120     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L1,                               2, },
121     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },
122     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0,                               2, },
123     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
124     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
125     { MB_TYPE_16x8    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
126     { MB_TYPE_8x16    | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1,                2, },
127     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },
128     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0,                2, },
129     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },
130     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L1,                2, },
131     { MB_TYPE_16x8    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
132     { MB_TYPE_8x16    | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
133     { MB_TYPE_8x8     | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
134 };
135 
136 const PMbInfo ff_h264_b_sub_mb_type_info[13] = {
137     { MB_TYPE_DIRECT2,                                                           1, },
138     { MB_TYPE_16x16 | MB_TYPE_P0L0,                                              1, },
139     { MB_TYPE_16x16 | MB_TYPE_P0L1,                                              1, },
140     { MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P0L1,                               1, },
141     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
142     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               2, },
143     { MB_TYPE_16x8  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
144     { MB_TYPE_8x16  | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               2, },
145     { MB_TYPE_16x8  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
146     { MB_TYPE_8x16  | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 2, },
147     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P1L0,                               4, },
148     { MB_TYPE_8x8   | MB_TYPE_P0L1 | MB_TYPE_P1L1,                               4, },
149     { MB_TYPE_8x8   | MB_TYPE_P0L0 | MB_TYPE_P0L1 | MB_TYPE_P1L0 | MB_TYPE_P1L1, 4, },
150 };
151 
152 const uint8_t ff_h264_dequant4_coeff_init[6][3] = {
153     { 10, 13, 16 },
154     { 11, 14, 18 },
155     { 13, 16, 20 },
156     { 14, 18, 23 },
157     { 16, 20, 25 },
158     { 18, 23, 29 },
159 };
160 
161 const uint8_t ff_h264_dequant8_coeff_init_scan[16] = {
162     0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1
163 };
164 
165 const uint8_t ff_h264_dequant8_coeff_init[6][6] = {
166     { 20, 18, 32, 19, 25, 24 },
167     { 22, 19, 35, 21, 28, 26 },
168     { 26, 23, 42, 24, 33, 31 },
169     { 28, 25, 45, 26, 35, 33 },
170     { 32, 28, 51, 30, 40, 38 },
171     { 36, 32, 58, 34, 46, 43 },
172 };
173 
174 const uint8_t ff_h264_quant_rem6[QP_MAX_NUM + 1] = {
175     0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
176     3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
177     0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
178     3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
179     0, 1, 2, 3,
180 };
181 
182 const uint8_t ff_h264_quant_div6[QP_MAX_NUM + 1] = {
183     0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3,  3,  3,
184     3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6,  6,  6,
185     7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10,
186    10,10,10,11,11,11,11,11,11,12,12,12,12,12,12,13,13,13, 13, 13, 13,
187    14,14,14,14,
188 };
189 
190 #define QP(qP, depth) ((qP) + 6 * ((depth) - 8))
191 
192 #define CHROMA_QP_TABLE_END(d)                                          \
193     QP(0,  d), QP(1,  d), QP(2,  d), QP(3,  d), QP(4,  d), QP(5,  d),   \
194     QP(6,  d), QP(7,  d), QP(8,  d), QP(9,  d), QP(10, d), QP(11, d),   \
195     QP(12, d), QP(13, d), QP(14, d), QP(15, d), QP(16, d), QP(17, d),   \
196     QP(18, d), QP(19, d), QP(20, d), QP(21, d), QP(22, d), QP(23, d),   \
197     QP(24, d), QP(25, d), QP(26, d), QP(27, d), QP(28, d), QP(29, d),   \
198     QP(29, d), QP(30, d), QP(31, d), QP(32, d), QP(32, d), QP(33, d),   \
199     QP(34, d), QP(34, d), QP(35, d), QP(35, d), QP(36, d), QP(36, d),   \
200     QP(37, d), QP(37, d), QP(37, d), QP(38, d), QP(38, d), QP(38, d),   \
201     QP(39, d), QP(39, d), QP(39, d), QP(39, d)
202 
203 const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM + 1] = {
204     { CHROMA_QP_TABLE_END(8) },
205     { 0, 1, 2, 3, 4, 5,
206       CHROMA_QP_TABLE_END(9) },
207     { 0, 1, 2, 3,  4,  5,
208       6, 7, 8, 9, 10, 11,
209       CHROMA_QP_TABLE_END(10) },
210     { 0,  1, 2, 3,  4,  5,
211       6,  7, 8, 9, 10, 11,
212       12,13,14,15, 16, 17,
213       CHROMA_QP_TABLE_END(11) },
214     { 0,  1, 2, 3,  4,  5,
215       6,  7, 8, 9, 10, 11,
216       12,13,14,15, 16, 17,
217       18,19,20,21, 22, 23,
218       CHROMA_QP_TABLE_END(12) },
219     { 0,  1, 2, 3,  4,  5,
220       6,  7, 8, 9, 10, 11,
221       12,13,14,15, 16, 17,
222       18,19,20,21, 22, 23,
223       24,25,26,27, 28, 29,
224       CHROMA_QP_TABLE_END(13) },
225     { 0,  1, 2, 3,  4,  5,
226       6,  7, 8, 9, 10, 11,
227       12,13,14,15, 16, 17,
228       18,19,20,21, 22, 23,
229       24,25,26,27, 28, 29,
230       30,31,32,33, 34, 35,
231       CHROMA_QP_TABLE_END(14) },
232 };
233