FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/msmpeg4_vc1_data.c
Date: 2024-02-16 17:37:06
Exec Total Coverage
Lines: 13 13 100.0%
Functions: 2 2 100.0%
Branches: 4 4 100.0%

Line Branch Exec Source
1 /*
2 * Common MSMPEG-4 and VC-1 tables and VLC init code
3 * Copyright (c) 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * msmpeg4v1 & v2 stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file
27 * Common MSMPEG-4 and VC-1 tables and VLC init code
28 */
29
30 #include "msmpeg4_vc1_data.h"
31 #include "vlc.h"
32 #include "libavutil/attributes.h"
33 #include "libavutil/thread.h"
34
35 VLCElem ff_msmp4_mb_i_vlc[536];
36 const VLCElem *ff_msmp4_dc_vlc[2][2];
37
38 44 static av_cold void msmp4_vc1_vlcs_init(void)
39 {
40 static VLCElem vlc_buf[1158 + 1118 + 1476 + 1216];
41 44 VLCInitState state = VLC_INIT_STATE(vlc_buf);
42
43
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132 for (int i = 0; i < 2; i++) {
44
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264 for (int j = 0; j < 2; j++) {
45 176 ff_msmp4_dc_vlc[i][j] =
46 176 ff_vlc_init_tables(&state, MSMP4_DC_VLC_BITS, 120,
47 176 &ff_msmp4_dc_tables[i][j][0][1], 8, 4,
48 176 &ff_msmp4_dc_tables[i][j][0][0], 8, 4, 0);
49 }
50 }
51 44 VLC_INIT_STATIC_TABLE(ff_msmp4_mb_i_vlc, MSMP4_MB_INTRA_VLC_BITS, 64,
52 &ff_msmp4_mb_i_table[0][1], 4, 2,
53 &ff_msmp4_mb_i_table[0][0], 4, 2, 0);
54 44 }
55
56 44 av_cold void ff_msmp4_vc1_vlcs_init_once(void)
57 {
58 static AVOnce init_static_once = AV_ONCE_INIT;
59 44 ff_thread_once(&init_static_once, msmp4_vc1_vlcs_init);
60 44 }
61
62 /* intra picture macroblock coded block pattern */
63 const uint16_t ff_msmp4_mb_i_table[64][2] = {
64 { 0x1, 1 }, { 0x17, 6 }, { 0x9, 5 }, { 0x5, 5 },
65 { 0x6, 5 }, { 0x47, 9 }, { 0x20, 7 }, { 0x10, 7 },
66 { 0x2, 5 }, { 0x7c, 9 }, { 0x3a, 7 }, { 0x1d, 7 },
67 { 0x2, 6 }, { 0xec, 9 }, { 0x77, 8 }, { 0x0, 8 },
68 { 0x3, 5 }, { 0xb7, 9 }, { 0x2c, 7 }, { 0x13, 7 },
69 { 0x1, 6 }, { 0x168, 10 }, { 0x46, 8 }, { 0x3f, 8 },
70 { 0x1e, 6 }, { 0x712, 13 }, { 0xb5, 9 }, { 0x42, 8 },
71 { 0x22, 7 }, { 0x1c5, 11 }, { 0x11e, 10 }, { 0x87, 9 },
72 { 0x6, 4 }, { 0x3, 9 }, { 0x1e, 7 }, { 0x1c, 6 },
73 { 0x12, 7 }, { 0x388, 12 }, { 0x44, 9 }, { 0x70, 9 },
74 { 0x1f, 6 }, { 0x23e, 11 }, { 0x39, 8 }, { 0x8e, 9 },
75 { 0x1, 7 }, { 0x1c6, 11 }, { 0xb6, 9 }, { 0x45, 9 },
76 { 0x14, 6 }, { 0x23f, 11 }, { 0x7d, 9 }, { 0x18, 9 },
77 { 0x7, 7 }, { 0x1c7, 11 }, { 0x86, 9 }, { 0x19, 9 },
78 { 0x15, 6 }, { 0x1db, 10 }, { 0x2, 9 }, { 0x46, 9 },
79 { 0xd, 8 }, { 0x713, 13 }, { 0x1da, 10 }, { 0x169, 10 },
80 };
81
82
83 const uint32_t ff_msmp4_dc_tables[2][2][120][2] = {
84 {
85 /* dc table 0 */
86 {
87 { 0x1, 1 }, { 0x1, 2 }, { 0x1, 4 }, { 0x1, 5 },
88 { 0x5, 5 }, { 0x7, 5 }, { 0x8, 6 }, { 0xc, 6 },
89 { 0x0, 7 }, { 0x2, 7 }, { 0x12, 7 }, { 0x1a, 7 },
90 { 0x3, 8 }, { 0x7, 8 }, { 0x27, 8 }, { 0x37, 8 },
91 { 0x5, 9 }, { 0x4c, 9 }, { 0x6c, 9 }, { 0x6d, 9 },
92 { 0x8, 10 }, { 0x19, 10 }, { 0x9b, 10 }, { 0x1b, 10 },
93 { 0x9a, 10 }, { 0x13, 11 }, { 0x34, 11 }, { 0x35, 11 },
94 { 0x61, 12 }, { 0x48, 13 }, { 0xc4, 13 }, { 0x4a, 13 },
95 { 0xc6, 13 }, { 0xc7, 13 }, { 0x92, 14 }, { 0x18b, 14 },
96 { 0x93, 14 }, { 0x183, 14 }, { 0x182, 14 }, { 0x96, 14 },
97 { 0x97, 14 }, { 0x180, 14 }, { 0x314, 15 }, { 0x315, 15 },
98 { 0x605, 16 }, { 0x604, 16 }, { 0x606, 16 }, { 0xc0e, 17 },
99 { 0x303cd, 23 }, { 0x303c9, 23 }, { 0x303c8, 23 }, { 0x303ca, 23 },
100 { 0x303cb, 23 }, { 0x303cc, 23 }, { 0x303ce, 23 }, { 0x303cf, 23 },
101 { 0x303d0, 23 }, { 0x303d1, 23 }, { 0x303d2, 23 }, { 0x303d3, 23 },
102 { 0x303d4, 23 }, { 0x303d5, 23 }, { 0x303d6, 23 }, { 0x303d7, 23 },
103 { 0x303d8, 23 }, { 0x303d9, 23 }, { 0x303da, 23 }, { 0x303db, 23 },
104 { 0x303dc, 23 }, { 0x303dd, 23 }, { 0x303de, 23 }, { 0x303df, 23 },
105 { 0x303e0, 23 }, { 0x303e1, 23 }, { 0x303e2, 23 }, { 0x303e3, 23 },
106 { 0x303e4, 23 }, { 0x303e5, 23 }, { 0x303e6, 23 }, { 0x303e7, 23 },
107 { 0x303e8, 23 }, { 0x303e9, 23 }, { 0x303ea, 23 }, { 0x303eb, 23 },
108 { 0x303ec, 23 }, { 0x303ed, 23 }, { 0x303ee, 23 }, { 0x303ef, 23 },
109 { 0x303f0, 23 }, { 0x303f1, 23 }, { 0x303f2, 23 }, { 0x303f3, 23 },
110 { 0x303f4, 23 }, { 0x303f5, 23 }, { 0x303f6, 23 }, { 0x303f7, 23 },
111 { 0x303f8, 23 }, { 0x303f9, 23 }, { 0x303fa, 23 }, { 0x303fb, 23 },
112 { 0x303fc, 23 }, { 0x303fd, 23 }, { 0x303fe, 23 }, { 0x303ff, 23 },
113 { 0x60780, 24 }, { 0x60781, 24 }, { 0x60782, 24 }, { 0x60783, 24 },
114 { 0x60784, 24 }, { 0x60785, 24 }, { 0x60786, 24 }, { 0x60787, 24 },
115 { 0x60788, 24 }, { 0x60789, 24 }, { 0x6078a, 24 }, { 0x6078b, 24 },
116 { 0x6078c, 24 }, { 0x6078d, 24 }, { 0x6078e, 24 }, { 0x6078f, 24 },
117 },
118 {
119 { 0x0, 2 }, { 0x1, 2 }, { 0x5, 3 }, { 0x9, 4 },
120 { 0xd, 4 }, { 0x11, 5 }, { 0x1d, 5 }, { 0x1f, 5 },
121 { 0x21, 6 }, { 0x31, 6 }, { 0x38, 6 }, { 0x33, 6 },
122 { 0x39, 6 }, { 0x3d, 6 }, { 0x61, 7 }, { 0x79, 7 },
123 { 0x80, 8 }, { 0xc8, 8 }, { 0xca, 8 }, { 0xf0, 8 },
124 { 0x81, 8 }, { 0xc0, 8 }, { 0xc9, 8 }, { 0x107, 9 },
125 { 0x106, 9 }, { 0x196, 9 }, { 0x183, 9 }, { 0x1e3, 9 },
126 { 0x1e2, 9 }, { 0x20a, 10 }, { 0x20b, 10 }, { 0x609, 11 },
127 { 0x412, 11 }, { 0x413, 11 }, { 0x60b, 11 }, { 0x411, 11 },
128 { 0x60a, 11 }, { 0x65f, 11 }, { 0x410, 11 }, { 0x65d, 11 },
129 { 0x65e, 11 }, { 0xcb8, 12 }, { 0xc10, 12 }, { 0xcb9, 12 },
130 { 0x1823, 13 }, { 0x3045, 14 }, { 0x6089, 15 }, { 0xc110, 16 },
131 { 0x304448, 22 }, { 0x304449, 22 }, { 0x30444a, 22 }, { 0x30444b, 22 },
132 { 0x30444c, 22 }, { 0x30444d, 22 }, { 0x30444e, 22 }, { 0x30444f, 22 },
133 { 0x304450, 22 }, { 0x304451, 22 }, { 0x304452, 22 }, { 0x304453, 22 },
134 { 0x304454, 22 }, { 0x304455, 22 }, { 0x304456, 22 }, { 0x304457, 22 },
135 { 0x304458, 22 }, { 0x304459, 22 }, { 0x30445a, 22 }, { 0x30445b, 22 },
136 { 0x30445c, 22 }, { 0x30445d, 22 }, { 0x30445e, 22 }, { 0x30445f, 22 },
137 { 0x304460, 22 }, { 0x304461, 22 }, { 0x304462, 22 }, { 0x304463, 22 },
138 { 0x304464, 22 }, { 0x304465, 22 }, { 0x304466, 22 }, { 0x304467, 22 },
139 { 0x304468, 22 }, { 0x304469, 22 }, { 0x30446a, 22 }, { 0x30446b, 22 },
140 { 0x30446c, 22 }, { 0x30446d, 22 }, { 0x30446e, 22 }, { 0x30446f, 22 },
141 { 0x304470, 22 }, { 0x304471, 22 }, { 0x304472, 22 }, { 0x304473, 22 },
142 { 0x304474, 22 }, { 0x304475, 22 }, { 0x304476, 22 }, { 0x304477, 22 },
143 { 0x304478, 22 }, { 0x304479, 22 }, { 0x30447a, 22 }, { 0x30447b, 22 },
144 { 0x30447c, 22 }, { 0x30447d, 22 }, { 0x30447e, 22 }, { 0x30447f, 22 },
145 { 0x608880, 23 }, { 0x608881, 23 }, { 0x608882, 23 }, { 0x608883, 23 },
146 { 0x608884, 23 }, { 0x608885, 23 }, { 0x608886, 23 }, { 0x608887, 23 },
147 { 0x608888, 23 }, { 0x608889, 23 }, { 0x60888a, 23 }, { 0x60888b, 23 },
148 { 0x60888c, 23 }, { 0x60888d, 23 }, { 0x60888e, 23 }, { 0x60888f, 23 },
149 }
150 },
151 {
152 /* dc table 1 */
153 {
154 { 0x2, 2 }, { 0x3, 2 }, { 0x3, 3 }, { 0x2, 4 },
155 { 0x5, 4 }, { 0x1, 5 }, { 0x3, 5 }, { 0x8, 5 },
156 { 0x0, 6 }, { 0x5, 6 }, { 0xd, 6 }, { 0xf, 6 },
157 { 0x13, 6 }, { 0x8, 7 }, { 0x18, 7 }, { 0x1c, 7 },
158 { 0x24, 7 }, { 0x4, 8 }, { 0x6, 8 }, { 0x12, 8 },
159 { 0x32, 8 }, { 0x3b, 8 }, { 0x4a, 8 }, { 0x4b, 8 },
160 { 0xb, 9 }, { 0x26, 9 }, { 0x27, 9 }, { 0x66, 9 },
161 { 0x74, 9 }, { 0x75, 9 }, { 0x14, 10 }, { 0x1c, 10 },
162 { 0x1f, 10 }, { 0x1d, 10 }, { 0x2b, 11 }, { 0x3d, 11 },
163 { 0x19d, 11 }, { 0x19f, 11 }, { 0x54, 12 }, { 0x339, 12 },
164 { 0x338, 12 }, { 0x33d, 12 }, { 0xab, 13 }, { 0xf1, 13 },
165 { 0x678, 13 }, { 0xf2, 13 }, { 0x1e0, 14 }, { 0x1e1, 14 },
166 { 0x154, 14 }, { 0xcf2, 14 }, { 0x3cc, 15 }, { 0x2ab, 15 },
167 { 0x19e7, 15 }, { 0x3ce, 15 }, { 0x19e6, 15 }, { 0x554, 16 },
168 { 0x79f, 16 }, { 0x555, 16 }, { 0xf3d, 17 }, { 0xf37, 17 },
169 { 0xf3c, 17 }, { 0xf35, 17 }, { 0x1e6d, 18 }, { 0x1e68, 18 },
170 { 0x3cd8, 19 }, { 0x3cd3, 19 }, { 0x3cd9, 19 }, { 0x79a4, 20 },
171 { 0xf34ba, 25 }, { 0xf34b4, 25 }, { 0xf34b5, 25 }, { 0xf34b6, 25 },
172 { 0xf34b7, 25 }, { 0xf34b8, 25 }, { 0xf34b9, 25 }, { 0xf34bb, 25 },
173 { 0xf34bc, 25 }, { 0xf34bd, 25 }, { 0xf34be, 25 }, { 0xf34bf, 25 },
174 { 0x1e6940, 26 }, { 0x1e6941, 26 }, { 0x1e6942, 26 }, { 0x1e6943, 26 },
175 { 0x1e6944, 26 }, { 0x1e6945, 26 }, { 0x1e6946, 26 }, { 0x1e6947, 26 },
176 { 0x1e6948, 26 }, { 0x1e6949, 26 }, { 0x1e694a, 26 }, { 0x1e694b, 26 },
177 { 0x1e694c, 26 }, { 0x1e694d, 26 }, { 0x1e694e, 26 }, { 0x1e694f, 26 },
178 { 0x1e6950, 26 }, { 0x1e6951, 26 }, { 0x1e6952, 26 }, { 0x1e6953, 26 },
179 { 0x1e6954, 26 }, { 0x1e6955, 26 }, { 0x1e6956, 26 }, { 0x1e6957, 26 },
180 { 0x1e6958, 26 }, { 0x1e6959, 26 }, { 0x1e695a, 26 }, { 0x1e695b, 26 },
181 { 0x1e695c, 26 }, { 0x1e695d, 26 }, { 0x1e695e, 26 }, { 0x1e695f, 26 },
182 { 0x1e6960, 26 }, { 0x1e6961, 26 }, { 0x1e6962, 26 }, { 0x1e6963, 26 },
183 { 0x1e6964, 26 }, { 0x1e6965, 26 }, { 0x1e6966, 26 }, { 0x1e6967, 26 },
184 },
185 {
186 { 0x0, 2 }, { 0x1, 2 }, { 0x4, 3 }, { 0x7, 3 },
187 { 0xb, 4 }, { 0xd, 4 }, { 0x15, 5 }, { 0x28, 6 },
188 { 0x30, 6 }, { 0x32, 6 }, { 0x52, 7 }, { 0x62, 7 },
189 { 0x66, 7 }, { 0xa6, 8 }, { 0xc6, 8 }, { 0xcf, 8 },
190 { 0x14f, 9 }, { 0x18e, 9 }, { 0x19c, 9 }, { 0x29d, 10 },
191 { 0x33a, 10 }, { 0x538, 11 }, { 0x63c, 11 }, { 0x63e, 11 },
192 { 0x63f, 11 }, { 0x676, 11 }, { 0xa73, 12 }, { 0xc7a, 12 },
193 { 0xcef, 12 }, { 0x14e5, 13 }, { 0x19dd, 13 }, { 0x29c8, 14 },
194 { 0x29c9, 14 }, { 0x63dd, 15 }, { 0x33b8, 14 }, { 0x33b9, 14 },
195 { 0xc7b6, 16 }, { 0x63d8, 15 }, { 0x63df, 15 }, { 0xc7b3, 16 },
196 { 0xc7b4, 16 }, { 0xc7b5, 16 }, { 0x63de, 15 }, { 0xc7b7, 16 },
197 { 0xc7b8, 16 }, { 0xc7b9, 16 }, { 0x18f65, 17 }, { 0x31ec8, 18 },
198 { 0xc7b248, 24 }, { 0xc7b249, 24 }, { 0xc7b24a, 24 }, { 0xc7b24b, 24 },
199 { 0xc7b24c, 24 }, { 0xc7b24d, 24 }, { 0xc7b24e, 24 }, { 0xc7b24f, 24 },
200 { 0xc7b250, 24 }, { 0xc7b251, 24 }, { 0xc7b252, 24 }, { 0xc7b253, 24 },
201 { 0xc7b254, 24 }, { 0xc7b255, 24 }, { 0xc7b256, 24 }, { 0xc7b257, 24 },
202 { 0xc7b258, 24 }, { 0xc7b259, 24 }, { 0xc7b25a, 24 }, { 0xc7b25b, 24 },
203 { 0xc7b25c, 24 }, { 0xc7b25d, 24 }, { 0xc7b25e, 24 }, { 0xc7b25f, 24 },
204 { 0xc7b260, 24 }, { 0xc7b261, 24 }, { 0xc7b262, 24 }, { 0xc7b263, 24 },
205 { 0xc7b264, 24 }, { 0xc7b265, 24 }, { 0xc7b266, 24 }, { 0xc7b267, 24 },
206 { 0xc7b268, 24 }, { 0xc7b269, 24 }, { 0xc7b26a, 24 }, { 0xc7b26b, 24 },
207 { 0xc7b26c, 24 }, { 0xc7b26d, 24 }, { 0xc7b26e, 24 }, { 0xc7b26f, 24 },
208 { 0xc7b270, 24 }, { 0xc7b271, 24 }, { 0xc7b272, 24 }, { 0xc7b273, 24 },
209 { 0xc7b274, 24 }, { 0xc7b275, 24 }, { 0xc7b276, 24 }, { 0xc7b277, 24 },
210 { 0xc7b278, 24 }, { 0xc7b279, 24 }, { 0xc7b27a, 24 }, { 0xc7b27b, 24 },
211 { 0xc7b27c, 24 }, { 0xc7b27d, 24 }, { 0xc7b27e, 24 }, { 0xc7b27f, 24 },
212 { 0x18f6480, 25 }, { 0x18f6481, 25 }, { 0x18f6482, 25 }, { 0x18f6483, 25 },
213 { 0x18f6484, 25 }, { 0x18f6485, 25 }, { 0x18f6486, 25 }, { 0x18f6487, 25 },
214 { 0x18f6488, 25 }, { 0x18f6489, 25 }, { 0x18f648a, 25 }, { 0x18f648b, 25 },
215 { 0x18f648c, 25 }, { 0x18f648d, 25 }, { 0x18f648e, 25 }, { 0x18f648f, 25 },
216 }
217 }
218 };
219
220 const uint8_t ff_wmv1_scantable[WMV1_SCANTABLE_COUNT][64] = {
221 { 0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11,
222 0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28,
223 0x30, 0x38, 0x29, 0x21, 0x1A, 0x13, 0x0C, 0x05,
224 0x06, 0x0D, 0x14, 0x1B, 0x22, 0x31, 0x39, 0x3A,
225 0x32, 0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F,
226 0x16, 0x1D, 0x24, 0x2B, 0x33, 0x3B, 0x3C, 0x34,
227 0x2C, 0x25, 0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x35,
228 0x3D, 0x3E, 0x36, 0x2E, 0x27, 0x2F, 0x37, 0x3F, },
229 { 0x00, 0x08, 0x01, 0x02, 0x09, 0x10, 0x18, 0x11,
230 0x0A, 0x03, 0x04, 0x0B, 0x12, 0x19, 0x20, 0x28,
231 0x21, 0x30, 0x1A, 0x13, 0x0C, 0x05, 0x06, 0x0D,
232 0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39, 0x2A,
233 0x23, 0x1C, 0x15, 0x0E, 0x07, 0x0F, 0x16, 0x1D,
234 0x24, 0x2B, 0x32, 0x3A, 0x33, 0x3B, 0x2C, 0x25,
235 0x1E, 0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3C, 0x35,
236 0x3D, 0x2E, 0x27, 0x2F, 0x36, 0x3E, 0x37, 0x3F, },
237 { 0x00, 0x01, 0x08, 0x02, 0x03, 0x09, 0x10, 0x18,
238 0x11, 0x0A, 0x04, 0x05, 0x0B, 0x12, 0x19, 0x20,
239 0x28, 0x30, 0x21, 0x1A, 0x13, 0x0C, 0x06, 0x07,
240 0x0D, 0x14, 0x1B, 0x22, 0x29, 0x38, 0x31, 0x39,
241 0x2A, 0x23, 0x1C, 0x15, 0x0E, 0x0F, 0x16, 0x1D,
242 0x24, 0x2B, 0x32, 0x3A, 0x33, 0x2C, 0x25, 0x1E,
243 0x17, 0x1F, 0x26, 0x2D, 0x34, 0x3B, 0x3C, 0x35,
244 0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, },
245 { 0x00, 0x08, 0x10, 0x01, 0x18, 0x20, 0x28, 0x09,
246 0x02, 0x03, 0x0A, 0x11, 0x19, 0x30, 0x38, 0x29,
247 0x21, 0x1A, 0x12, 0x0B, 0x04, 0x05, 0x0C, 0x13,
248 0x1B, 0x22, 0x31, 0x39, 0x32, 0x2A, 0x23, 0x1C,
249 0x14, 0x0D, 0x06, 0x07, 0x0E, 0x15, 0x1D, 0x24,
250 0x2B, 0x33, 0x3A, 0x3B, 0x34, 0x2C, 0x25, 0x1E,
251 0x16, 0x0F, 0x17, 0x1F, 0x26, 0x2D, 0x3C, 0x35,
252 0x2E, 0x27, 0x2F, 0x36, 0x3D, 0x3E, 0x37, 0x3F, }
253 };
254