FFmpeg
rv40vlc2.h
Go to the documentation of this file.
1 /*
2  * RealVideo 4 decoder
3  * copyright (c) 2007 Konstantin Shishkov
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  * RV40 VLC tables used for macroblock information decoding
25  */
26 
27 #ifndef AVCODEC_RV40VLC2_H
28 #define AVCODEC_RV40VLC2_H
29 
30 #include <stdint.h>
31 
32 /**
33  * codes used for the first four block types
34  */
35 //@{
36 #define AIC_TOP_BITS 7
37 #define AIC_TOP_SIZE 16
38 static const uint8_t rv40_aic_top_vlc_tab[AIC_TOP_SIZE][2] = {
39  { 0x3, 5 }, { 0x2, 5 }, { 0x7, 5 }, { 0x4, 5 }, { 0xF, 3 }, { 0x8, 4 },
40  { 0x1, 4 }, { 0xE, 5 }, { 0xC, 5 }, { 0xB, 6 }, { 0x6, 6 }, { 0x9, 7 },
41  { 0x5, 7 }, { 0xD, 7 }, { 0xA, 7 }, { 0x0, 1 },
42 };
43 //@}
44 
45 /**
46  * codes used for determining a pair of block types
47  */
48 //@{
49 #define AIC_MODE2_NUM 20
50 #define AIC_MODE2_SIZE 81
51 #define AIC_MODE2_BITS 9
52 
53 static const uint8_t aic_mode2_vlc_syms[AIC_MODE2_NUM][AIC_MODE2_SIZE] = {
54  {
55  0x06, 0x01, 0x28, 0x11, 0x22, 0x20, 0x04, 0x07, 0x05, 0x16, 0x08, 0x60,
56  0x02, 0x66, 0x61, 0x23, 0x15, 0x31, 0x26, 0x77, 0x12, 0x10, 0x42, 0x21,
57  0x72, 0x50, 0x88, 0x82, 0x27, 0x24, 0x44, 0x40, 0x62, 0x55, 0x18, 0x13,
58  0x53, 0x52, 0x64, 0x46, 0x41, 0x51, 0x47, 0x33, 0x32, 0x74, 0x67, 0x14,
59  0x03, 0x30, 0x25, 0x36, 0x34, 0x45, 0x37, 0x78, 0x85, 0x84, 0x75, 0x73,
60  0x57, 0x86, 0x65, 0x58, 0x71, 0x68, 0x70, 0x56, 0x54, 0x17, 0x76, 0x63,
61  0x87, 0x81, 0x80, 0x38, 0x35, 0x48, 0x43, 0x83, 0x00,
62  },
63  {
64  0x77, 0x62, 0x46, 0x33, 0x68, 0x52, 0x18, 0x05, 0x31, 0x25, 0x42, 0x04,
65  0x51, 0x44, 0x40, 0x32, 0x55, 0x41, 0x26, 0x24, 0x30, 0x27, 0x57, 0x36,
66  0x84, 0x76, 0x81, 0x83, 0x78, 0x73, 0x45, 0x85, 0x75, 0x86, 0x87, 0x56,
67  0x53, 0x80, 0x67, 0x35, 0x34, 0x43, 0x37, 0x82, 0x70, 0x65, 0x74, 0x71,
68  0x54, 0x48, 0x63, 0x58, 0x72, 0x64, 0x07, 0x03, 0x47, 0x38, 0x88, 0x20,
69  0x01, 0x60, 0x28, 0x16, 0x02, 0x61, 0x50, 0x13, 0x08, 0x23, 0x17, 0x66,
70  0x14, 0x06, 0x21, 0x15, 0x10, 0x00, 0x22, 0x12, 0x11,
71  },
72  {
73  0x10, 0x01, 0x24, 0x12, 0x88, 0x83, 0x70, 0x14, 0x08, 0x46, 0x25, 0x87,
74  0x44, 0x42, 0x60, 0x50, 0x61, 0x51, 0x71, 0x66, 0x15, 0x04, 0x41, 0x33,
75  0x17, 0x03, 0x34, 0x18, 0x86, 0x68, 0x67, 0x63, 0x57, 0x75, 0x65, 0x45,
76  0x36, 0x58, 0x54, 0x43, 0x37, 0x56, 0x53, 0x74, 0x62, 0x85, 0x78, 0x07,
77  0x05, 0x35, 0x13, 0x84, 0x64, 0x55, 0x76, 0x73, 0x47, 0x38, 0x52, 0x48,
78  0x11, 0x00, 0x21, 0x20, 0x82, 0x28, 0x81, 0x80, 0x31, 0x30, 0x40, 0x32,
79  0x16, 0x06, 0x26, 0x23, 0x27, 0x02, 0x77, 0x72, 0x22,
80  },
81  {
82  0x88, 0x82, 0x50, 0x47, 0x74, 0x43, 0x76, 0x75, 0x68, 0x24, 0x00, 0x37,
83  0x30, 0x54, 0x44, 0x64, 0x58, 0x36, 0x34, 0x65, 0x40, 0x06, 0x03, 0x20,
84  0x17, 0x08, 0x04, 0x48, 0x45, 0x87, 0x84, 0x71, 0x85, 0x78, 0x80, 0x73,
85  0x07, 0x86, 0x63, 0x57, 0x70, 0x67, 0x77, 0x72, 0x83, 0x81, 0x32, 0x28,
86  0x18, 0x05, 0x42, 0x38, 0x52, 0x14, 0x02, 0x25, 0x23, 0x66, 0x56, 0x53,
87  0x62, 0x60, 0x35, 0x33, 0x46, 0x41, 0x21, 0x12, 0x10, 0x01, 0x26, 0x13,
88  0x61, 0x22, 0x16, 0x27, 0x15, 0x55, 0x31, 0x51, 0x11,
89  },
90  {
91  0x13, 0x10, 0x27, 0x14, 0x66, 0x44, 0x41, 0x53, 0x46, 0x25, 0x18, 0x35,
92  0x33, 0x68, 0x63, 0x88, 0x71, 0x34, 0x24, 0x50, 0x47, 0x37, 0x08, 0x48,
93  0x45, 0x82, 0x74, 0x70, 0x84, 0x76, 0x30, 0x04, 0x57, 0x43, 0x83, 0x78,
94  0x86, 0x85, 0x73, 0x07, 0x80, 0x75, 0x87, 0x65, 0x56, 0x03, 0x00, 0x20,
95  0x06, 0x72, 0x52, 0x31, 0x62, 0x60, 0x21, 0x15, 0x51, 0x22, 0x16, 0x12,
96  0x02, 0x01, 0x23, 0x17, 0x55, 0x77, 0x64, 0x58, 0x54, 0x81, 0x67, 0x36,
97  0x05, 0x40, 0x38, 0x28, 0x26, 0x42, 0x32, 0x61, 0x11,
98  },
99  {
100  0x22, 0x11, 0x23, 0x13, 0x32, 0x25, 0x72, 0x45, 0x40, 0x57, 0x50, 0x03,
101  0x00, 0x30, 0x08, 0x86, 0x75, 0x80, 0x68, 0x43, 0x04, 0x47, 0x07, 0x48,
102  0x65, 0x58, 0x85, 0x84, 0x78, 0x64, 0x67, 0x63, 0x74, 0x73, 0x06, 0x05,
103  0x44, 0x37, 0x87, 0x83, 0x46, 0x42, 0x54, 0x53, 0x18, 0x17, 0x36, 0x34,
104  0x66, 0x55, 0x38, 0x24, 0x56, 0x41, 0x02, 0x01, 0x20, 0x14, 0x16, 0x12,
105  0x61, 0x27, 0x26, 0x15, 0x31, 0x28, 0x21, 0x88, 0x82, 0x62, 0x60, 0x76,
106  0x70, 0x33, 0x10, 0x52, 0x35, 0x71, 0x51, 0x81, 0x77,
107  },
108  {
109  0x16, 0x12, 0x61, 0x22, 0x51, 0x21, 0x15, 0x52, 0x31, 0x55, 0x81, 0x66,
110  0x46, 0x42, 0x62, 0x54, 0x14, 0x01, 0x25, 0x23, 0x27, 0x13, 0x56, 0x41,
111  0x35, 0x33, 0x58, 0x53, 0x26, 0x10, 0x32, 0x28, 0x84, 0x77, 0x43, 0x00,
112  0x68, 0x47, 0x85, 0x45, 0x34, 0x57, 0x50, 0x05, 0x03, 0x37, 0x30, 0x87,
113  0x86, 0x76, 0x08, 0x07, 0x80, 0x75, 0x70, 0x73, 0x04, 0x78, 0x74, 0x63,
114  0x48, 0x71, 0x67, 0x82, 0x65, 0x17, 0x06, 0x24, 0x20, 0x88, 0x83, 0x60,
115  0x44, 0x40, 0x72, 0x64, 0x18, 0x02, 0x38, 0x36, 0x11,
116  },
117  {
118  0x66, 0x01, 0x14, 0x03, 0x24, 0x23, 0x62, 0x08, 0x04, 0x35, 0x20, 0x72,
119  0x63, 0x58, 0x70, 0x68, 0x48, 0x45, 0x54, 0x53, 0x26, 0x25, 0x65, 0x44,
120  0x13, 0x05, 0x51, 0x41, 0x61, 0x16, 0x12, 0x10, 0x06, 0x28, 0x27, 0x60,
121  0x40, 0x32, 0x56, 0x52, 0x17, 0x00, 0x31, 0x18, 0x73, 0x30, 0x75, 0x74,
122  0x88, 0x84, 0x83, 0x86, 0x80, 0x85, 0x43, 0x38, 0x87, 0x47, 0x76, 0x71,
123  0x50, 0x37, 0x78, 0x57, 0x82, 0x77, 0x67, 0x33, 0x07, 0x36, 0x34, 0x81,
124  0x46, 0x42, 0x64, 0x55, 0x15, 0x02, 0x22, 0x21, 0x11,
125  },
126  {
127  0x22, 0x00, 0x11, 0x01, 0x20, 0x08, 0x88, 0x62, 0x27, 0x02, 0x07, 0x06,
128  0x21, 0x12, 0x28, 0x87, 0x66, 0x32, 0x30, 0x38, 0x33, 0x15, 0x14, 0x25,
129  0x17, 0x26, 0x24, 0x60, 0x42, 0x78, 0x71, 0x84, 0x81, 0x44, 0x23, 0x52,
130  0x50, 0x80, 0x70, 0x35, 0x13, 0x48, 0x46, 0x83, 0x51, 0x40, 0x64, 0x61,
131  0x55, 0x47, 0x74, 0x58, 0x18, 0x03, 0x41, 0x31, 0x73, 0x68, 0x43, 0x36,
132  0x57, 0x45, 0x85, 0x56, 0x54, 0x67, 0x65, 0x76, 0x75, 0x37, 0x34, 0x63,
133  0x53, 0x86, 0x77, 0x72, 0x05, 0x04, 0x16, 0x10, 0x82,
134  },
135  {
136  0x22, 0x12, 0x27, 0x21, 0x14, 0x01, 0x20, 0x15, 0x62, 0x02, 0x00, 0x16,
137  0x10, 0x60, 0x17, 0x72, 0x66, 0x28, 0x07, 0x06, 0x18, 0x13, 0x82, 0x55,
138  0x40, 0x78, 0x71, 0x25, 0x23, 0x32, 0x31, 0x42, 0x26, 0x61, 0x52, 0x24,
139  0x08, 0x50, 0x44, 0x77, 0x37, 0x34, 0x63, 0x57, 0x87, 0x84, 0x80, 0x86,
140  0x83, 0x45, 0x36, 0x85, 0x73, 0x70, 0x68, 0x81, 0x74, 0x33, 0x03, 0x38,
141  0x35, 0x88, 0x56, 0x54, 0x76, 0x75, 0x46, 0x43, 0x53, 0x48, 0x64, 0x51,
142  0x58, 0x47, 0x67, 0x65, 0x05, 0x04, 0x41, 0x30, 0x11,
143  },
144  {
145  0x44, 0x40, 0x66, 0x60, 0x23, 0x16, 0x32, 0x30, 0x07, 0x06, 0x18, 0x14,
146  0x86, 0x50, 0x47, 0x75, 0x55, 0x33, 0x31, 0x41, 0x35, 0x80, 0x70, 0x84,
147  0x83, 0x78, 0x71, 0x87, 0x81, 0x77, 0x12, 0x38, 0x25, 0x52, 0x51, 0x08,
148  0x01, 0x17, 0x15, 0x58, 0x54, 0x68, 0x67, 0x34, 0x13, 0x48, 0x46, 0x04,
149  0x03, 0x36, 0x05, 0x85, 0x56, 0x45, 0x65, 0x57, 0x73, 0x43, 0x37, 0x63,
150  0x53, 0x64, 0x61, 0x76, 0x74, 0x24, 0x10, 0x62, 0x42, 0x21, 0x11, 0x02,
151  0x00, 0x26, 0x20, 0x88, 0x28, 0x27, 0x82, 0x72, 0x22,
152  },
153  {
154  0x28, 0x27, 0x71, 0x70, 0x87, 0x78, 0x82, 0x22, 0x77, 0x72, 0x07, 0x01,
155  0x14, 0x08, 0x81, 0x66, 0x62, 0x80, 0x75, 0x40, 0x25, 0x51, 0x50, 0x02,
156  0x00, 0x26, 0x20, 0x42, 0x24, 0x52, 0x44, 0x16, 0x10, 0x23, 0x17, 0x64,
157  0x60, 0x86, 0x83, 0x46, 0x41, 0x55, 0x54, 0x48, 0x47, 0x58, 0x56, 0x18,
158  0x04, 0x35, 0x31, 0x57, 0x38, 0x34, 0x03, 0x63, 0x53, 0x67, 0x13, 0x05,
159  0x36, 0x33, 0x73, 0x61, 0x43, 0x37, 0x68, 0x65, 0x45, 0x85, 0x76, 0x74,
160  0x15, 0x06, 0x32, 0x30, 0x84, 0x12, 0x11, 0x88, 0x21,
161  },
162  {
163  0x82, 0x27, 0x08, 0x07, 0x16, 0x10, 0x62, 0x76, 0x74, 0x50, 0x41, 0x86,
164  0x67, 0x15, 0x14, 0x38, 0x17, 0x40, 0x23, 0x61, 0x42, 0x11, 0x02, 0x26,
165  0x20, 0x72, 0x77, 0x28, 0x12, 0x01, 0x60, 0x24, 0x88, 0x52, 0x44, 0x75,
166  0x64, 0x25, 0x06, 0x32, 0x30, 0x55, 0x51, 0x68, 0x58, 0x46, 0x33, 0x48,
167  0x47, 0x43, 0x37, 0x56, 0x54, 0x13, 0x03, 0x35, 0x34, 0x85, 0x73, 0x65,
168  0x63, 0x45, 0x36, 0x57, 0x53, 0x83, 0x80, 0x05, 0x04, 0x31, 0x18, 0x84,
169  0x70, 0x66, 0x87, 0x81, 0x21, 0x00, 0x78, 0x71, 0x22,
170  },
171  {
172  0x84, 0x81, 0x32, 0x25, 0x86, 0x83, 0x10, 0x04, 0x23, 0x14, 0x62, 0x26,
173  0x70, 0x66, 0x42, 0x24, 0x64, 0x44, 0x87, 0x75, 0x71, 0x85, 0x80, 0x55,
174  0x52, 0x67, 0x61, 0x50, 0x48, 0x58, 0x51, 0x18, 0x15, 0x38, 0x30, 0x33,
175  0x31, 0x65, 0x41, 0x05, 0x03, 0x13, 0x08, 0x37, 0x36, 0x53, 0x43, 0x60,
176  0x73, 0x68, 0x63, 0x57, 0x45, 0x35, 0x56, 0x54, 0x78, 0x76, 0x40, 0x34,
177  0x47, 0x46, 0x06, 0x01, 0x17, 0x07, 0x77, 0x28, 0x02, 0x00, 0x12, 0x11,
178  0x88, 0x72, 0x27, 0x20, 0x16, 0x74, 0x21, 0x82, 0x22,
179  },
180  {
181  0x77, 0x12, 0x81, 0x78, 0x72, 0x38, 0x33, 0x50, 0x44, 0x23, 0x01, 0x31,
182  0x25, 0x34, 0x13, 0x37, 0x35, 0x86, 0x58, 0x55, 0x73, 0x68, 0x43, 0x04,
183  0x54, 0x53, 0x64, 0x46, 0x65, 0x63, 0x57, 0x45, 0x67, 0x05, 0x03, 0x56,
184  0x36, 0x62, 0x52, 0x83, 0x66, 0x42, 0x32, 0x80, 0x71, 0x10, 0x08, 0x24,
185  0x16, 0x87, 0x18, 0x17, 0x47, 0x41, 0x07, 0x06, 0x15, 0x14, 0x75, 0x74,
186  0x85, 0x76, 0x51, 0x48, 0x61, 0x60, 0x40, 0x30, 0x84, 0x70, 0x22, 0x82,
187  0x28, 0x21, 0x11, 0x02, 0x00, 0x26, 0x20, 0x27, 0x88,
188  },
189  {
190  0x72, 0x27, 0x87, 0x81, 0x42, 0x33, 0x52, 0x50, 0x16, 0x08, 0x31, 0x23,
191  0x02, 0x00, 0x78, 0x20, 0x82, 0x88, 0x28, 0x38, 0x32, 0x71, 0x62, 0x24,
192  0x10, 0x30, 0x26, 0x64, 0x61, 0x76, 0x75, 0x44, 0x18, 0x58, 0x55, 0x54,
193  0x48, 0x45, 0x43, 0x57, 0x46, 0x73, 0x35, 0x34, 0x37, 0x36, 0x04, 0x03,
194  0x13, 0x05, 0x85, 0x65, 0x63, 0x68, 0x67, 0x47, 0x41, 0x56, 0x53, 0x70,
195  0x60, 0x07, 0x06, 0x15, 0x14, 0x84, 0x83, 0x80, 0x66, 0x51, 0x86, 0x74,
196  0x17, 0x01, 0x40, 0x25, 0x12, 0x11, 0x77, 0x21, 0x22,
197  },
198  {
199  0x27, 0x21, 0x88, 0x72, 0x28, 0x12, 0x11, 0x83, 0x77, 0x82, 0x80, 0x78,
200  0x25, 0x24, 0x38, 0x32, 0x08, 0x01, 0x18, 0x16, 0x20, 0x02, 0x26, 0x23,
201  0x81, 0x74, 0x86, 0x84, 0x10, 0x00, 0x62, 0x61, 0x04, 0x03, 0x13, 0x06,
202  0x76, 0x58, 0x51, 0x64, 0x60, 0x31, 0x17, 0x41, 0x35, 0x44, 0x42, 0x70,
203  0x66, 0x33, 0x15, 0x48, 0x40, 0x87, 0x65, 0x55, 0x67, 0x63, 0x54, 0x07,
204  0x57, 0x56, 0x46, 0x45, 0x50, 0x47, 0x73, 0x68, 0x30, 0x14, 0x53, 0x43,
205  0x75, 0x71, 0x52, 0x34, 0x05, 0x37, 0x36, 0x85, 0x22,
206  },
207  {
208  0x21, 0x14, 0x32, 0x27, 0x10, 0x72, 0x67, 0x82, 0x77, 0x44, 0x40, 0x54,
209  0x45, 0x41, 0x37, 0x68, 0x56, 0x08, 0x01, 0x24, 0x13, 0x78, 0x48, 0x04,
210  0x03, 0x43, 0x05, 0x81, 0x25, 0x07, 0x47, 0x35, 0x34, 0x06, 0x46, 0x36,
211  0x88, 0x84, 0x83, 0x75, 0x74, 0x76, 0x73, 0x86, 0x85, 0x70, 0x65, 0x80,
212  0x71, 0x57, 0x53, 0x87, 0x63, 0x51, 0x50, 0x23, 0x18, 0x33, 0x31, 0x61,
213  0x12, 0x62, 0x22, 0x02, 0x00, 0x17, 0x15, 0x66, 0x55, 0x42, 0x64, 0x58,
214  0x26, 0x20, 0x38, 0x30, 0x28, 0x16, 0x60, 0x52, 0x11,
215  },
216  {
217  0x61, 0x15, 0x27, 0x25, 0x32, 0x28, 0x06, 0x01, 0x24, 0x17, 0x78, 0x75,
218  0x87, 0x80, 0x85, 0x08, 0x07, 0x73, 0x70, 0x48, 0x47, 0x84, 0x83, 0x81,
219  0x71, 0x88, 0x86, 0x76, 0x74, 0x30, 0x04, 0x43, 0x37, 0x82, 0x72, 0x67,
220  0x20, 0x03, 0x57, 0x45, 0x77, 0x52, 0x36, 0x41, 0x38, 0x68, 0x58, 0x05,
221  0x00, 0x34, 0x33, 0x55, 0x26, 0x60, 0x56, 0x11, 0x66, 0x16, 0x64, 0x51,
222  0x10, 0x02, 0x23, 0x18, 0x62, 0x54, 0x53, 0x65, 0x63, 0x40, 0x35, 0x50,
223  0x42, 0x31, 0x13, 0x46, 0x44, 0x14, 0x12, 0x22, 0x21,
224  },
225  {
226  0x22, 0x21, 0x12, 0x01, 0x16, 0x15, 0x82, 0x88, 0x87, 0x42, 0x40, 0x60,
227  0x44, 0x06, 0x05, 0x31, 0x10, 0x66, 0x61, 0x83, 0x76, 0x26, 0x25, 0x72,
228  0x27, 0x81, 0x11, 0x46, 0x41, 0x84, 0x62, 0x13, 0x02, 0x24, 0x20, 0x80,
229  0x75, 0x65, 0x63, 0x68, 0x54, 0x37, 0x07, 0x57, 0x30, 0x50, 0x52, 0x48,
230  0x73, 0x67, 0x74, 0x55, 0x53, 0x47, 0x58, 0x56, 0x34, 0x04, 0x43, 0x38,
231  0x70, 0x64, 0x17, 0x00, 0x45, 0x36, 0x78, 0x86, 0x85, 0x33, 0x32, 0x51,
232  0x35, 0x08, 0x03, 0x18, 0x14, 0x28, 0x23, 0x77, 0x71,
233  },
234 };
235 
236 static const uint8_t aic_mode2_vlc_bits[AIC_MODE2_NUM][AIC_MODE2_SIZE] = {
237  {
238  5, 5, 5, 5, 3, 6, 6, 8, 8, 8, 8, 6, 4, 7, 7, 9, 9,
239  9, 9, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9,
240  11, 11, 11, 11, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
241  14, 14, 14, 14, 12, 13, 13, 15, 15, 14, 13, 12, 12, 12, 12, 11, 11,
242  13, 13, 13, 13, 11, 10, 10, 12, 12, 12, 12, 10, 1,
243  },
244  {
245  8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 9, 9, 9,
246  9, 9, 9, 9, 9, 13, 13, 13, 13, 11, 12, 12, 14, 14, 15, 15, 14,
247  12, 11, 11, 11, 11, 12, 12, 12, 12, 10, 12, 12, 12, 12, 12, 12, 12,
248  12, 9, 9, 11, 11, 11, 11, 9, 6, 6, 6, 6, 5, 5, 7, 7, 9,
249  9, 9, 9, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1,
250  },
251  {
252  7, 7, 7, 7, 5, 8, 8, 10, 10, 10, 10, 8, 8, 8, 8, 8, 9,
253  9, 9, 9, 9, 9, 9, 9, 12, 12, 12, 12, 10, 13, 13, 14, 14, 14,
254  14, 13, 13, 13, 13, 12, 12, 12, 12, 10, 10, 10, 10, 11, 11, 11, 11,
255  9, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 4, 4, 6, 6,
256  8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 1,
257  },
258  {
259  9, 9, 11, 11, 13, 13, 13, 13, 11, 11, 11, 11, 11, 9, 9, 9, 9,
260  10, 10, 10, 10, 10, 10, 10, 10, 12, 12, 12, 12, 10, 12, 12, 13, 13,
261  15, 15, 14, 13, 12, 12, 12, 12, 10, 10, 10, 10, 7, 7, 9, 9, 9,
262  9, 7, 8, 8, 8, 8, 6, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5,
263  7, 7, 7, 7, 5, 4, 4, 6, 6, 6, 6, 4, 1,
264  },
265  {
266  7, 7, 7, 7, 5, 9, 9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11,
267  11, 11, 11, 11, 12, 12, 12, 12, 10, 13, 13, 13, 13, 13, 13, 13, 13,
268  12, 12, 14, 14, 15, 15, 15, 15, 12, 9, 9, 11, 11, 11, 11, 9, 7,
269  7, 7, 7, 5, 5, 5, 5, 4, 4, 8, 8, 8, 8, 6, 8, 8, 10,
270  10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 4, 1,
271  },
272  {
273  2, 2, 7, 7, 7, 7, 5, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11,
274  12, 12, 13, 13, 14, 14, 13, 10, 10, 10, 10, 9, 9, 11, 11, 11, 11,
275  11, 11, 11, 11, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 9,
276  9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 6, 6, 6, 6, 4, 6,
277  6, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6,
278  },
279  {
280  5, 5, 5, 5, 3, 6, 6, 6, 6, 4, 7, 7, 9, 9, 9, 9, 9,
281  9, 9, 9, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 11, 11,
282  13, 13, 13, 13, 11, 11, 11, 11, 11, 12, 12, 12, 12, 10, 12, 12, 15,
283  15, 15, 15, 13, 14, 14, 14, 14, 12, 12, 12, 12, 9, 9, 11, 11, 11,
284  11, 9, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 1,
285  },
286  {
287  5, 5, 9, 9, 9, 9, 7, 11, 11, 11, 11, 9, 11, 11, 11, 11, 11,
288  11, 11, 11, 9, 9, 9, 9, 7, 7, 7, 7, 3, 4, 4, 8, 8, 8,
289  8, 6, 10, 10, 10, 10, 10, 10, 10, 10, 14, 14, 14, 14, 12, 13, 13,
290  14, 14, 13, 12, 12, 12, 12, 11, 11, 13, 13, 13, 13, 11, 10, 10, 12,
291  12, 12, 12, 10, 8, 8, 8, 8, 6, 6, 6, 6, 1,
292  },
293  {
294  2, 2, 5, 5, 7, 7, 7, 7, 5, 3, 6, 6, 6, 6, 4, 8, 8,
295  10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 9, 9, 9, 9, 9,
296  9, 9, 9, 10, 10, 12, 12, 12, 12, 10, 10, 10, 10, 10, 11, 11, 11,
297  11, 11, 11, 11, 11, 12, 12, 14, 14, 14, 14, 12, 12, 12, 12, 12, 11,
298  11, 13, 13, 13, 13, 11, 6, 6, 8, 8, 8, 8, 6,
299  },
300  {
301  3, 3, 6, 6, 8, 8, 8, 8, 6, 6, 6, 6, 6, 7, 7, 7, 7,
302  5, 10, 10, 10, 10, 8, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8,
303  8, 9, 9, 9, 9, 7, 13, 13, 13, 13, 11, 12, 12, 13, 13, 14, 14,
304  14, 14, 11, 11, 11, 11, 12, 12, 12, 12, 10, 12, 12, 12, 12, 12, 12,
305  12, 12, 9, 9, 11, 11, 11, 11, 11, 11, 11, 11, 1,
306  },
307  {
308  9, 9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 9, 11, 11, 11, 11,
309  11, 11, 11, 11, 9, 9, 9, 9, 7, 7, 7, 7, 6, 6, 10, 10, 10,
310  10, 10, 10, 10, 10, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
311  11, 14, 14, 14, 14, 12, 13, 13, 13, 13, 10, 10, 10, 10, 8, 8, 8,
312  8, 5, 5, 7, 7, 7, 7, 5, 4, 4, 4, 4, 1,
313  },
314  {
315  4, 4, 6, 6, 6, 6, 4, 2, 3, 3, 9, 9, 9, 9, 7, 9, 9,
316  9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8,
317  8, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11,
318  12, 12, 14, 14, 14, 14, 12, 12, 12, 12, 12, 11, 11, 13, 13, 14, 14,
319  13, 11, 8, 8, 10, 10, 10, 10, 8, 5, 5, 5, 5,
320  },
321  {
322  5, 5, 9, 9, 9, 9, 7, 9, 9, 11, 11, 11, 11, 11, 11, 11, 11,
323  9, 9, 9, 9, 7, 7, 7, 7, 3, 4, 4, 8, 8, 8, 8, 6, 10,
324  10, 10, 10, 10, 10, 10, 10, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13,
325  13, 13, 13, 13, 13, 13, 12, 12, 13, 13, 14, 14, 14, 14, 10, 10, 12,
326  12, 12, 12, 10, 8, 8, 8, 8, 6, 6, 6, 6, 1,
327  },
328  {
329  7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 8, 8, 8,
330  8, 6, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11,
331  11, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 11, 12, 12, 13,
332  13, 14, 14, 14, 14, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5,
333  7, 7, 7, 7, 5, 4, 4, 6, 6, 6, 6, 4, 1,
334  },
335  {
336  6, 6, 6, 6, 4, 9, 9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11,
337  9, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 13, 13, 14, 14, 13, 13,
338  13, 13, 13, 9, 9, 9, 9, 7, 7, 7, 7, 8, 8, 8, 8, 6, 10,
339  10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8,
340  8, 8, 2, 3, 3, 5, 5, 7, 7, 7, 7, 5, 3,
341  },
342  {
343  5, 5, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 3,
344  4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11, 11, 11,
345  11, 12, 12, 14, 14, 14, 14, 12, 12, 12, 12, 12, 13, 13, 13, 13, 11,
346  13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 11, 11, 11, 11, 9, 8, 8,
347  10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 1,
348  },
349  {
350  5, 5, 5, 5, 3, 6, 6, 6, 6, 4, 7, 7, 9, 9, 9, 9, 9,
351  9, 9, 9, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 11, 11,
352  11, 11, 9, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 10, 10,
353  10, 10, 8, 12, 12, 13, 13, 14, 14, 14, 14, 12, 12, 12, 12, 11, 11,
354  13, 13, 13, 13, 11, 10, 10, 12, 12, 12, 12, 10, 1,
355  },
356  {
357  7, 7, 7, 7, 5, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
358  10, 10, 10, 10, 11, 11, 13, 13, 13, 13, 11, 11, 11, 11, 11, 12, 12,
359  12, 12, 10, 13, 13, 14, 14, 15, 15, 15, 15, 13, 13, 13, 13, 12, 12,
360  12, 12, 7, 7, 9, 9, 9, 9, 7, 3, 4, 4, 8, 8, 8, 8, 6,
361  8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 1,
362  },
363  {
364  4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 13, 13, 14, 14, 13, 13, 13,
365  13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 12, 12, 12, 12, 10,
366  9, 9, 11, 11, 11, 11, 9, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10,
367  6, 6, 6, 6, 2, 3, 3, 5, 5, 9, 9, 9, 9, 7, 9, 9, 9,
368  9, 9, 9, 9, 9, 7, 7, 7, 7, 5, 5, 5, 5,
369  },
370  {
371  2, 2, 7, 7, 7, 7, 5, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9,
372  7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 8, 8, 8, 8, 8, 8, 8,
373  8, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 14, 11, 11, 11, 11, 10,
374  10, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 11, 11, 11, 11, 9, 8,
375  8, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6,
376  },
377 };
378 //@}
379 
380 /**
381  * Codes used for determining block type
382  */
383 //@{
384 #define AIC_MODE1_NUM 90
385 #define AIC_MODE1_SIZE 9
386 #define AIC_MODE1_BITS 7
387 
388 static const uint8_t aic_mode1_vlc_tabs[AIC_MODE1_NUM][AIC_MODE1_SIZE][2] = {
389  { { 4, 4 }, { 1, 4 }, { 7, 7 }, { 3, 7 }, { 5, 6 },
390  { 8, 5 }, { 6, 4 }, { 2, 2 }, { 0, 1 } },
391  { { 5, 3 }, { 2, 3 }, { 8, 7 }, { 7, 7 }, { 4, 6 },
392  { 0, 5 }, { 3, 4 }, { 6, 3 }, { 1, 1 } },
393  { { 7, 4 }, { 1, 4 }, { 5, 7 }, { 3, 7 }, { 4, 6 },
394  { 6, 5 }, { 8, 4 }, { 2, 2 }, { 0, 1 } },
395  { { 2, 3 }, { 1, 3 }, { 7, 7 }, { 4, 7 }, { 8, 6 },
396  { 6, 5 }, { 5, 4 }, { 3, 3 }, { 0, 1 } },
397  { { 2, 2 }, { 0, 2 }, { 4, 4 }, { 1, 4 }, { 8, 6 },
398  { 3, 6 }, { 5, 5 }, { 7, 4 }, { 6, 2 } },
399  { { 4, 7 }, { 0, 7 }, { 8, 7 }, { 7, 7 }, { 6, 5 },
400  { 3, 4 }, { 2, 3 }, { 1, 2 }, { 5, 1 } },
401  { { 4, 5 }, { 0, 5 }, { 8, 7 }, { 7, 7 }, { 3, 6 },
402  { 5, 5 }, { 2, 3 }, { 6, 2 }, { 1, 1 } },
403  { { 6, 5 }, { 1, 5 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
404  { 7, 5 }, { 4, 3 }, { 0, 2 }, { 2, 1 } },
405  { { 3, 4 }, { 1, 4 }, { 7, 7 }, { 5, 7 }, { 6, 6 },
406  { 4, 5 }, { 8, 4 }, { 0, 2 }, { 2, 1 } },
407  { { 0 } }, /* unused */
408  { { 5, 5 }, { 4, 5 }, { 8, 7 }, { 7, 7 }, { 3, 6 },
409  { 6, 5 }, { 2, 3 }, { 0, 2 }, { 1, 1 } },
410  { { 5, 3 }, { 2, 3 }, { 8, 7 }, { 7, 7 }, { 4, 6 },
411  { 0, 5 }, { 3, 4 }, { 6, 3 }, { 1, 1 } },
412  { { 6, 4 }, { 0, 4 }, { 5, 5 }, { 4, 5 }, { 8, 6 },
413  { 3, 6 }, { 7, 5 }, { 2, 2 }, { 1, 1 } },
414  { { 2, 3 }, { 0, 3 }, { 8, 7 }, { 7, 7 }, { 4, 6 },
415  { 6, 5 }, { 3, 4 }, { 5, 3 }, { 1, 1 } },
416  { { 4, 3 }, { 2, 3 }, { 8, 7 }, { 7, 7 }, { 3, 6 },
417  { 5, 5 }, { 0, 4 }, { 6, 3 }, { 1, 1 } },
418  { { 3, 4 }, { 2, 4 }, { 8, 7 }, { 7, 7 }, { 0, 6 },
419  { 4, 5 }, { 6, 4 }, { 5, 2 }, { 1, 1 } },
420  { { 3, 7 }, { 0, 7 }, { 8, 7 }, { 7, 7 }, { 2, 5 },
421  { 4, 4 }, { 5, 3 }, { 6, 2 }, { 1, 1 } },
422  { { 4, 5 }, { 0, 5 }, { 8, 7 }, { 3, 7 }, { 5, 6 },
423  { 7, 5 }, { 1, 3 }, { 2, 2 }, { 6, 1 } },
424  { { 6, 4 }, { 0, 4 }, { 7, 7 }, { 4, 7 }, { 3, 6 },
425  { 5, 5 }, { 8, 4 }, { 2, 2 }, { 1, 1 } },
426  { { 2, 1 }, { 0, 1 } }, /* Unused */
427  { { 1, 3 }, { 0, 3 }, { 4, 5 }, { 3, 5 }, { 6, 6 },
428  { 5, 6 }, { 7, 5 }, { 8, 3 }, { 2, 1 } },
429  { { 7, 4 }, { 6, 4 }, { 5, 5 }, { 3, 5 }, { 4, 6 },
430  { 0, 6 }, { 8, 5 }, { 1, 2 }, { 2, 1 } },
431  { { 4, 6 }, { 0, 6 }, { 5, 7 }, { 3, 7 }, { 6, 6 },
432  { 1, 4 }, { 7, 3 }, { 8, 2 }, { 2, 1 } },
433  { { 8, 3 }, { 1, 3 }, { 3, 4 }, { 0, 4 }, { 6, 6 },
434  { 4, 6 }, { 7, 5 }, { 5, 4 }, { 2, 1 } },
435  { { 7, 3 }, { 6, 3 }, { 5, 7 }, { 3, 7 }, { 0, 6 },
436  { 1, 5 }, { 4, 4 }, { 8, 3 }, { 2, 1 } },
437  { { 2, 2 }, { 1, 2 }, { 4, 7 }, { 0, 7 }, { 7, 6 },
438  { 8, 5 }, { 6, 4 }, { 3, 3 }, { 5, 2 } },
439  { { 2, 2 }, { 1, 2 }, { 7, 4 }, { 4, 4 }, { 3, 6 },
440  { 0, 6 }, { 5, 5 }, { 8, 4 }, { 6, 2 } },
441  { { 1, 4 }, { 0, 4 }, { 5, 7 }, { 3, 7 }, { 4, 6 },
442  { 6, 5 }, { 8, 4 }, { 7, 2 }, { 2, 1 } },
443  { { 7, 4 }, { 1, 4 }, { 3, 5 }, { 0, 5 }, { 5, 6 },
444  { 4, 6 }, { 6, 5 }, { 8, 2 }, { 2, 1 } },
445  { { 0 } }, /* unused */
446  { { 1, 2 }, { 0, 2 }, { 5, 5 }, { 4, 5 }, { 7, 6 },
447  { 6, 6 }, { 8, 5 }, { 3, 3 }, { 2, 2 } },
448  { { 3, 3 }, { 2, 3 }, { 7, 7 }, { 0, 7 }, { 4, 6 },
449  { 8, 5 }, { 6, 4 }, { 5, 3 }, { 1, 1 } },
450  { { 3, 4 }, { 1, 4 }, { 6, 7 }, { 5, 7 }, { 4, 6 },
451  { 7, 5 }, { 8, 4 }, { 0, 2 }, { 2, 1 } },
452  { { 5, 3 }, { 2, 3 }, { 7, 7 }, { 0, 7 }, { 6, 6 },
453  { 4, 5 }, { 1, 4 }, { 8, 3 }, { 3, 1 } },
454  { { 2, 3 }, { 1, 3 }, { 3, 4 }, { 0, 4 }, { 7, 6 },
455  { 5, 6 }, { 8, 5 }, { 6, 4 }, { 4, 1 } },
456  { { 2, 4 }, { 1, 4 }, { 7, 7 }, { 0, 7 }, { 4, 6 },
457  { 8, 5 }, { 6, 4 }, { 3, 2 }, { 5, 1 } },
458  { { 6, 2 }, { 1, 2 }, { 5, 3 }, { 2, 3 }, { 4, 4 },
459  { 3, 4 }, { 7, 5 }, { 0, 5 }, { 8, 4 } },
460  { { 4, 2 }, { 2, 2 }, { 3, 3 }, { 0, 3 }, { 5, 5 },
461  { 1, 5 }, { 7, 5 }, { 6, 5 }, { 8, 3 } },
462  { { 2, 4 }, { 1, 4 }, { 7, 7 }, { 6, 7 }, { 0, 6 },
463  { 4, 5 }, { 5, 4 }, { 3, 2 }, { 8, 1 } },
464  { { 0 } }, /* unused */
465  { { 1, 2 }, { 0, 2 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
466  { 7, 5 }, { 6, 4 }, { 4, 3 }, { 2, 2 } },
467  { { 6, 3 }, { 2, 3 }, { 4, 4 }, { 0, 4 }, { 7, 6 },
468  { 3, 6 }, { 8, 5 }, { 5, 4 }, { 1, 1 } },
469  { { 7, 6 }, { 6, 6 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
470  { 1, 4 }, { 4, 3 }, { 0, 2 }, { 2, 1 } },
471  { { 2, 3 }, { 0, 3 }, { 5, 4 }, { 1, 4 }, { 8, 6 },
472  { 7, 6 }, { 3, 5 }, { 6, 4 }, { 4, 1 } },
473  { { 5, 7 }, { 3, 7 }, { 8, 7 }, { 7, 7 }, { 1, 5 },
474  { 0, 4 }, { 6, 3 }, { 2, 2 }, { 4, 1 } },
475  { { 6, 2 }, { 1, 2 }, { 4, 3 }, { 2, 3 }, { 7, 6 },
476  { 0, 6 }, { 3, 5 }, { 8, 4 }, { 5, 3 } },
477  { { 1, 4 }, { 0, 4 }, { 8, 7 }, { 3, 7 }, { 7, 6 },
478  { 5, 5 }, { 2, 4 }, { 4, 2 }, { 6, 1 } },
479  { { 6, 4 }, { 0, 4 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
480  { 1, 5 }, { 7, 4 }, { 2, 2 }, { 4, 1 } },
481  { { 2, 2 }, { 0, 2 }, { 5, 4 }, { 1, 4 }, { 6, 6 },
482  { 3, 6 }, { 7, 5 }, { 8, 4 }, { 4, 2 } },
483  { { 0 } }, /* unused */
484  { { 2, 3 }, { 1, 3 }, { 6, 5 }, { 3, 5 }, { 7, 6 },
485  { 4, 6 }, { 8, 5 }, { 5, 3 }, { 0, 1 } },
486  { { 3, 4 }, { 2, 4 }, { 7, 7 }, { 0, 7 }, { 4, 6 },
487  { 8, 5 }, { 6, 4 }, { 5, 2 }, { 1, 1 } },
488  { { 1, 2 }, { 0, 2 }, { 6, 5 }, { 4, 5 }, { 7, 6 },
489  { 3, 6 }, { 8, 5 }, { 5, 3 }, { 2, 2 } },
490  { { 2, 4 }, { 1, 4 }, { 7, 7 }, { 0, 7 }, { 4, 6 },
491  { 6, 5 }, { 8, 4 }, { 3, 2 }, { 5, 1 } },
492  { { 2, 2 }, { 1, 2 }, { 5, 3 }, { 0, 3 }, { 4, 4 },
493  { 3, 4 }, { 8, 5 }, { 7, 5 }, { 6, 4 } },
494  { { 4, 7 }, { 0, 7 }, { 8, 7 }, { 7, 7 }, { 2, 5 },
495  { 6, 4 }, { 3, 3 }, { 1, 2 }, { 5, 1 } },
496  { { 5, 2 }, { 1, 2 }, { 8, 7 }, { 7, 7 }, { 0, 6 },
497  { 4, 5 }, { 3, 4 }, { 2, 3 }, { 6, 2 } },
498  { { 2, 2 }, { 1, 2 }, { 8, 3 }, { 0, 3 }, { 6, 4 },
499  { 5, 4 }, { 4, 5 }, { 3, 5 }, { 7, 4 } },
500  { { 2, 2 }, { 1, 2 }, { 5, 3 }, { 0, 3 }, { 7, 6 },
501  { 4, 6 }, { 6, 5 }, { 3, 4 }, { 8, 3 } },
502  { { 0 } }, /* unused */
503  { { 2, 3 }, { 1, 3 }, { 8, 7 }, { 3, 7 }, { 5, 6 },
504  { 7, 5 }, { 4, 4 }, { 6, 3 }, { 0, 1 } },
505  { { 2, 4 }, { 0, 4 }, { 8, 7 }, { 3, 7 }, { 7, 6 },
506  { 5, 5 }, { 4, 4 }, { 6, 2 }, { 1, 1 } },
507  { { 5, 7 }, { 3, 7 }, { 8, 7 }, { 7, 7 }, { 4, 5 },
508  { 1, 4 }, { 6, 3 }, { 0, 2 }, { 2, 1 } },
509  { { 6, 2 }, { 1, 2 }, { 2, 3 }, { 0, 3 }, { 8, 6 },
510  { 7, 6 }, { 3, 5 }, { 5, 4 }, { 4, 3 } },
511  { { 5, 7 }, { 3, 7 }, { 8, 7 }, { 7, 7 }, { 1, 5 },
512  { 2, 4 }, { 0, 3 }, { 4, 2 }, { 6, 1 } },
513  { { 5, 3 }, { 2, 3 }, { 8, 7 }, { 7, 7 }, { 3, 6 },
514  { 4, 5 }, { 0, 4 }, { 6, 3 }, { 1, 1 } },
515  { { 5, 7 }, { 3, 7 }, { 8, 7 }, { 7, 7 }, { 2, 5 },
516  { 0, 4 }, { 4, 3 }, { 1, 2 }, { 6, 1 } },
517  { { 3, 7 }, { 0, 7 }, { 8, 7 }, { 5, 7 }, { 7, 5 },
518  { 1, 4 }, { 4, 3 }, { 6, 2 }, { 2, 1 } },
519  { { 2, 2 }, { 1, 2 }, { 4, 4 }, { 0, 4 }, { 7, 6 },
520  { 3, 6 }, { 5, 5 }, { 8, 4 }, { 6, 2 } },
521  { { 0 } }, /* unused */
522  { { 6, 6 }, { 4, 6 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
523  { 1, 4 }, { 0, 3 }, { 7, 2 }, { 2, 1 } },
524  { { 2, 2 }, { 1, 2 }, { 6, 4 }, { 0, 4 }, { 4, 6 },
525  { 3, 6 }, { 5, 5 }, { 8, 4 }, { 7, 2 } },
526  { { 1, 4 }, { 0, 4 }, { 5, 7 }, { 3, 7 }, { 6, 6 },
527  { 4, 5 }, { 8, 4 }, { 7, 2 }, { 2, 1 } },
528  { { 7, 2 }, { 2, 2 }, { 1, 3 }, { 0, 3 }, { 5, 4 },
529  { 4, 4 }, { 6, 5 }, { 3, 5 }, { 8, 4 } },
530  { { 4, 2 }, { 2, 2 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
531  { 1, 5 }, { 0, 4 }, { 6, 3 }, { 7, 2 } },
532  { { 7, 2 }, { 2, 2 }, { 6, 3 }, { 1, 3 }, { 5, 4 },
533  { 0, 4 }, { 4, 5 }, { 3, 5 }, { 8, 4 } },
534  { { 4, 2 }, { 2, 2 }, { 3, 7 }, { 0, 7 }, { 8, 6 },
535  { 5, 5 }, { 1, 4 }, { 6, 3 }, { 7, 2 } },
536  { { 6, 6 }, { 1, 6 }, { 5, 7 }, { 3, 7 }, { 8, 6 },
537  { 0, 4 }, { 4, 3 }, { 2, 2 }, { 7, 1 } },
538  { { 8, 4 }, { 4, 4 }, { 1, 5 }, { 0, 5 }, { 5, 6 },
539  { 3, 6 }, { 6, 5 }, { 7, 2 }, { 2, 1 } },
540  { { 0 } }, /* unused */
541  { { 8, 2 }, { 2, 2 }, { 1, 3 }, { 0, 3 }, { 6, 6 },
542  { 5, 6 }, { 4, 5 }, { 7, 4 }, { 3, 3 } },
543  { { 3, 3 }, { 2, 3 }, { 6, 7 }, { 0, 7 }, { 4, 6 },
544  { 5, 5 }, { 7, 4 }, { 8, 3 }, { 1, 1 } },
545  { { 7, 4 }, { 1, 4 }, { 3, 5 }, { 0, 5 }, { 6, 6 },
546  { 5, 6 }, { 4, 5 }, { 8, 2 }, { 2, 1 } },
547  { { 3, 2 }, { 2, 2 }, { 4, 6 }, { 0, 6 }, { 7, 6 },
548  { 6, 6 }, { 1, 4 }, { 5, 3 }, { 8, 2 } },
549  { { 8, 2 }, { 2, 2 }, { 6, 3 }, { 4, 3 }, { 5, 6 },
550  { 0, 6 }, { 3, 5 }, { 1, 4 }, { 7, 3 } },
551  { { 5, 2 }, { 2, 2 }, { 3, 3 }, { 1, 3 }, { 7, 6 },
552  { 0, 6 }, { 4, 5 }, { 6, 4 }, { 8, 3 } },
553  { { 2, 2 }, { 1, 2 }, { 6, 3 }, { 4, 3 }, { 7, 6 },
554  { 0, 6 }, { 5, 5 }, { 3, 4 }, { 8, 3 } },
555  { { 3, 7 }, { 0, 7 }, { 6, 7 }, { 5, 7 }, { 1, 5 },
556  { 4, 4 }, { 7, 3 }, { 8, 2 }, { 2, 1 } },
557  { { 1, 5 }, { 0, 5 }, { 6, 7 }, { 5, 7 }, { 4, 6 },
558  { 7, 5 }, { 3, 3 }, { 2, 2 }, { 8, 1 } },
559  { { 0 } }, /* unused */
560 };
561 
562 //@}
563 
564 #define PBTYPE_ESCAPE 0xFF
565 
566 /** tables used for P-frame macroblock type decoding */
567 //@{
568 #define NUM_PTYPE_VLCS 7
569 #define PTYPE_VLC_SIZE 8
570 #define PTYPE_VLC_BITS 7
571 
572 static const uint8_t ptype_vlc_tabs[NUM_PTYPE_VLCS][PTYPE_VLC_SIZE][2] = {
573  { { PBTYPE_ESCAPE, 7 }, { 11, 7 }, { 3, 6 }, { 8, 5 },
574  { 9, 4 }, { 2, 3 }, { 1, 2 }, { 0, 1 } },
575  { { PBTYPE_ESCAPE, 7 }, { 3, 7 }, { 8, 6 }, { 9, 5 },
576  { 11, 4 }, { 0, 3 }, { 2, 2 }, { 1, 1 } },
577  { { 9, 3 }, { 8, 3 }, { 3, 4 }, { 1, 4 }, { PBTYPE_ESCAPE, 5 },
578  { 0, 5 }, { 11, 4 }, { 2, 1 } },
579  { { 3, 2 }, { 2, 2 }, { PBTYPE_ESCAPE, 6 }, { 11, 6 },
580  { 1, 5 }, { 0, 4 }, { 8, 3 }, { 9, 2 } },
581  { { PBTYPE_ESCAPE, 7 }, { 11, 7 }, { 1, 6 }, { 0, 5 },
582  { 3, 4 }, { 9, 3 }, { 8, 2 }, { 2, 1 } },
583  { { PBTYPE_ESCAPE, 7 }, { 11, 7 }, { 1, 6 }, { 0, 5 },
584  { 3, 4 }, { 8, 3 }, { 9, 2 }, { 2, 1 } },
585  { { PBTYPE_ESCAPE, 7 }, { 3, 7 }, { 0, 6 }, { 8, 5 },
586  { 9, 4 }, { 1, 3 }, { 2, 2 }, { 11, 1 } },
587 };
588 
589 static const uint8_t block_num_to_ptype_vlc_num[12] = {
590  0, 1, 2, 3, 0, 0, 2, 0, 4, 5, 0, 6
591 };
592 //@}
593 
594 /** tables used for P-frame macroblock type decoding */
595 //@{
596 #define NUM_BTYPE_VLCS 6
597 #define BTYPE_VLC_SIZE 7
598 #define BTYPE_VLC_BITS 6
599 
600 static const uint8_t btype_vlc_tabs[NUM_BTYPE_VLCS][BTYPE_VLC_SIZE][2] = {
601  { { 4, 2 }, { 0, 2 }, { PBTYPE_ESCAPE, 5 },
602  { 10, 5 }, { 7, 4 }, { 1, 3 }, { 5, 2 } },
603  { { PBTYPE_ESCAPE, 6 }, { 10, 6 }, { 7, 5 },
604  { 0, 4 }, { 4, 3 }, { 5, 2 }, { 1, 1 } },
605  { { PBTYPE_ESCAPE, 6 }, { 0, 6 }, { 10, 5 },
606  { 1, 4 }, { 7, 3 }, { 5, 2 }, { 4, 1 } },
607  { { 4, 3 }, { 1, 3 }, { PBTYPE_ESCAPE, 5 },
608  { 0, 5 }, { 10, 4 }, { 7, 3 }, { 5, 1 } },
609  { { PBTYPE_ESCAPE, 6 }, { 0, 6 }, { 1, 5 },
610  { 10, 4 }, { 4, 3 }, { 5, 2 }, { 7, 1 } },
611  { { PBTYPE_ESCAPE, 6 }, { 0, 6 }, { 1, 5 },
612  { 10, 4 }, { 4, 3 }, { 7, 2 }, { 5, 1 } },
613 };
614 
615 static const uint8_t block_num_to_btype_vlc_num[12] = {
616  0, 1, 0, 0, 2, 3, 0, 5, 0, 0, 4, 0
617 };
618 //@}
619 #endif /* AVCODEC_RV40VLC2_H */
AIC_MODE1_SIZE
#define AIC_MODE1_SIZE
Definition: rv40vlc2.h:385
aic_mode2_vlc_bits
static const uint8_t aic_mode2_vlc_bits[AIC_MODE2_NUM][AIC_MODE2_SIZE]
Definition: rv40vlc2.h:236
AIC_MODE2_SIZE
#define AIC_MODE2_SIZE
Definition: rv40vlc2.h:50
PTYPE_VLC_SIZE
#define PTYPE_VLC_SIZE
Definition: rv40vlc2.h:569
aic_mode2_vlc_syms
static const uint8_t aic_mode2_vlc_syms[AIC_MODE2_NUM][AIC_MODE2_SIZE]
Definition: rv40vlc2.h:53
AIC_MODE2_NUM
#define AIC_MODE2_NUM
codes used for determining a pair of block types
Definition: rv40vlc2.h:49
BTYPE_VLC_SIZE
#define BTYPE_VLC_SIZE
Definition: rv40vlc2.h:597
NUM_BTYPE_VLCS
#define NUM_BTYPE_VLCS
tables used for P-frame macroblock type decoding
Definition: rv40vlc2.h:596
PBTYPE_ESCAPE
#define PBTYPE_ESCAPE
Definition: rv40vlc2.h:564
btype_vlc_tabs
static const uint8_t btype_vlc_tabs[NUM_BTYPE_VLCS][BTYPE_VLC_SIZE][2]
Definition: rv40vlc2.h:600
AIC_MODE1_NUM
#define AIC_MODE1_NUM
Codes used for determining block type.
Definition: rv40vlc2.h:384
NUM_PTYPE_VLCS
#define NUM_PTYPE_VLCS
tables used for P-frame macroblock type decoding
Definition: rv40vlc2.h:568
AIC_TOP_SIZE
#define AIC_TOP_SIZE
Definition: rv40vlc2.h:37
block_num_to_btype_vlc_num
static const uint8_t block_num_to_btype_vlc_num[12]
Definition: rv40vlc2.h:615
rv40_aic_top_vlc_tab
static const uint8_t rv40_aic_top_vlc_tab[AIC_TOP_SIZE][2]
Definition: rv40vlc2.h:38
ptype_vlc_tabs
static const uint8_t ptype_vlc_tabs[NUM_PTYPE_VLCS][PTYPE_VLC_SIZE][2]
Definition: rv40vlc2.h:572
block_num_to_ptype_vlc_num
static const uint8_t block_num_to_ptype_vlc_num[12]
Definition: rv40vlc2.h:589
aic_mode1_vlc_tabs
static const uint8_t aic_mode1_vlc_tabs[AIC_MODE1_NUM][AIC_MODE1_SIZE][2]
Definition: rv40vlc2.h:388
Generated on Tue Feb 28 2023 21:33:36 for FFmpeg by   doxygen 1.8.17