1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
|
/**
* @file mpeg4data.h
* mpeg4 tables.
*/
// shapes
#define RECT_SHAPE 0
#define BIN_SHAPE 1
#define BIN_ONLY_SHAPE 2
#define GRAY_SHAPE 3
#define SIMPLE_VO_TYPE 1
#define CORE_VO_TYPE 3
#define MAIN_VO_TYPE 4
#define NBIT_VO_TYPE 5
#define ARTS_VO_TYPE 10
#define ACE_VO_TYPE 12
#define ADV_SIMPLE_VO_TYPE 17
// aspect_ratio_info
#define EXTENDED_PAR 15
//vol_sprite_usage / sprite_enable
#define STATIC_SPRITE 1
#define GMC_SPRITE 2
#define MOTION_MARKER 0x1F001
#define DC_MARKER 0x6B001
static const int mb_type_b_map[4]= {
MB_TYPE_DIRECT2 | MB_TYPE_L0L1,
MB_TYPE_L0L1 | MB_TYPE_16x16,
MB_TYPE_L1 | MB_TYPE_16x16,
MB_TYPE_L0 | MB_TYPE_16x16,
};
#define VOS_STARTCODE 0x1B0
#define USER_DATA_STARTCODE 0x1B2
#define GOP_STARTCODE 0x1B3
#define VISUAL_OBJ_STARTCODE 0x1B5
#define VOP_STARTCODE 0x1B6
/* dc encoding for mpeg4 */
const uint8_t DCtab_lum[13][2] =
{
{3,3}, {3,2}, {2,2}, {2,3}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7},
{1,8}, {1,9}, {1,10}, {1,11},
};
const uint8_t DCtab_chrom[13][2] =
{
{3,2}, {2,2}, {1,2}, {1,3}, {1,4}, {1,5}, {1,6}, {1,7}, {1,8},
{1,9}, {1,10}, {1,11}, {1,12},
};
const uint16_t intra_vlc[103][2] = {
{ 0x2, 2 },
{ 0x6, 3 },{ 0xf, 4 },{ 0xd, 5 },{ 0xc, 5 },
{ 0x15, 6 },{ 0x13, 6 },{ 0x12, 6 },{ 0x17, 7 },
{ 0x1f, 8 },{ 0x1e, 8 },{ 0x1d, 8 },{ 0x25, 9 },
{ 0x24, 9 },{ 0x23, 9 },{ 0x21, 9 },{ 0x21, 10 },
{ 0x20, 10 },{ 0xf, 10 },{ 0xe, 10 },{ 0x7, 11 },
{ 0x6, 11 },{ 0x20, 11 },{ 0x21, 11 },{ 0x50, 12 },
{ 0x51, 12 },{ 0x52, 12 },{ 0xe, 4 },{ 0x14, 6 },
{ 0x16, 7 },{ 0x1c, 8 },{ 0x20, 9 },{ 0x1f, 9 },
{ 0xd, 10 },{ 0x22, 11 },{ 0x53, 12 },{ 0x55, 12 },
{ 0xb, 5 },{ 0x15, 7 },{ 0x1e, 9 },{ 0xc, 10 },
{ 0x56, 12 },{ 0x11, 6 },{ 0x1b, 8 },{ 0x1d, 9 },
{ 0xb, 10 },{ 0x10, 6 },{ 0x22, 9 },{ 0xa, 10 },
{ 0xd, 6 },{ 0x1c, 9 },{ 0x8, 10 },{ 0x12, 7 },
{ 0x1b, 9 },{ 0x54, 12 },{ 0x14, 7 },{ 0x1a, 9 },
{ 0x57, 12 },{ 0x19, 8 },{ 0x9, 10 },{ 0x18, 8 },
{ 0x23, 11 },{ 0x17, 8 },{ 0x19, 9 },{ 0x18, 9 },
{ 0x7, 10 },{ 0x58, 12 },{ 0x7, 4 },{ 0xc, 6 },
{ 0x16, 8 },{ 0x17, 9 },{ 0x6, 10 },{ 0x5, 11 },
{ 0x4, 11 },{ 0x59, 12 },{ 0xf, 6 },{ 0x16, 9 },
{ 0x5, 10 },{ 0xe, 6 },{ 0x4, 10 },{ 0x11, 7 },
{ 0x24, 11 },{ 0x10, 7 },{ 0x25, 11 },{ 0x13, 7 },
{ 0x5a, 12 },{ 0x15, 8 },{ 0x5b, 12 },{ 0x14, 8 },
{ 0x13, 8 },{ 0x1a, 8 },{ 0x15, 9 },{ 0x14, 9 },
{ 0x13, 9 },{ 0x12, 9 },{ 0x11, 9 },{ 0x26, 11 },
{ 0x27, 11 },{ 0x5c, 12 },{ 0x5d, 12 },{ 0x5e, 12 },
{ 0x5f, 12 },{ 0x3, 7 },
};
const int8_t intra_level[102] = {
1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 1, 2, 3,
4, 5, 1, 2, 3, 4, 1, 2,
3, 1, 2, 3, 1, 2, 3, 1,
2, 3, 1, 2, 1, 2, 1, 1,
1, 1, 1, 1, 2, 3, 4, 5,
6, 7, 8, 1, 2, 3, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1,
};
const int8_t intra_run[102] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 2, 2, 2,
2, 2, 3, 3, 3, 3, 4, 4,
4, 5, 5, 5, 6, 6, 6, 7,
7, 7, 8, 8, 9, 9, 10, 11,
12, 13, 14, 0, 0, 0, 0, 0,
0, 0, 0, 1, 1, 1, 2, 2,
3, 3, 4, 4, 5, 5, 6, 6,
7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20,
};
static RLTable rl_intra = {
102,
67,
intra_vlc,
intra_run,
intra_level,
};
static const uint16_t inter_rvlc[170][2]={ //note this is identical to the intra rvlc except that its reordered
{0x0006, 3},{0x0001, 4},{0x0004, 5},{0x001C, 7},
{0x003C, 8},{0x003D, 8},{0x007C, 9},{0x00FC, 10},
{0x00FD, 10},{0x01FC, 11},{0x01FD, 11},{0x03FC, 12},
{0x07FC, 13},{0x07FD, 13},{0x0BFC, 13},{0x0BFD, 13},
{0x0FFC, 14},{0x0FFD, 14},{0x1FFC, 15},{0x0007, 3},
{0x000C, 6},{0x005C, 8},{0x007D, 9},{0x017C, 10},
{0x02FC, 11},{0x03FD, 12},{0x0DFC, 13},{0x17FC, 14},
{0x17FD, 14},{0x000A, 4},{0x001D, 7},{0x00BC, 9},
{0x02FD, 11},{0x05FC, 12},{0x1BFC, 14},{0x1BFD, 14},
{0x0005, 5},{0x005D, 8},{0x017D, 10},{0x05FD, 12},
{0x0DFD, 13},{0x1DFC, 14},{0x1FFD, 15},{0x0008, 5},
{0x006C, 8},{0x037C, 11},{0x0EFC, 13},{0x2FFC, 15},
{0x0009, 5},{0x00BD, 9},{0x037D, 11},{0x0EFD, 13},
{0x000D, 6},{0x01BC, 10},{0x06FC, 12},{0x1DFD, 14},
{0x0014, 6},{0x01BD, 10},{0x06FD, 12},{0x2FFD, 15},
{0x0015, 6},{0x01DC, 10},{0x0F7C, 13},{0x002C, 7},
{0x01DD, 10},{0x1EFC, 14},{0x002D, 7},{0x03BC, 11},
{0x0034, 7},{0x077C, 12},{0x006D, 8},{0x0F7D, 13},
{0x0074, 8},{0x1EFD, 14},{0x0075, 8},{0x1F7C, 14},
{0x00DC, 9},{0x1F7D, 14},{0x00DD, 9},{0x1FBC, 14},
{0x00EC, 9},{0x37FC, 15},{0x01EC, 10},{0x01ED, 10},
{0x01F4, 10},{0x03BD, 11},{0x03DC, 11},{0x03DD, 11},
{0x03EC, 11},{0x03ED, 11},{0x03F4, 11},{0x077D, 12},
{0x07BC, 12},{0x07BD, 12},{0x0FBC, 13},{0x0FBD, 13},
{0x0FDC, 13},{0x0FDD, 13},{0x1FBD, 14},{0x1FDC, 14},
{0x1FDD, 14},{0x37FD, 15},{0x3BFC, 15},
{0x000B, 4},{0x0078, 8},{0x03F5, 11},{0x0FEC, 13},
{0x1FEC, 14},{0x0012, 5},{0x00ED, 9},{0x07DC, 12},
{0x1FED, 14},{0x3BFD, 15},{0x0013, 5},{0x03F8, 11},
{0x3DFC, 15},{0x0018, 6},{0x07DD, 12},{0x0019, 6},
{0x07EC, 12},{0x0022, 6},{0x0FED, 13},{0x0023, 6},
{0x0FF4, 13},{0x0035, 7},{0x0FF5, 13},{0x0038, 7},
{0x0FF8, 13},{0x0039, 7},{0x0FF9, 13},{0x0042, 7},
{0x1FF4, 14},{0x0043, 7},{0x1FF5, 14},{0x0079, 8},
{0x1FF8, 14},{0x0082, 8},{0x3DFD, 15},{0x0083, 8},
{0x00F4, 9},{0x00F5, 9},{0x00F8, 9},{0x00F9, 9},
{0x0102, 9},{0x0103, 9},{0x01F5, 10},{0x01F8, 10},
{0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},
{0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},
{0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},
{0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},
{0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},
{0x3F7C, 15},{0x3F7D, 15},{0x0000, 4}
};
static const int8_t inter_rvlc_run[169]={
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 2, 2, 2,
2, 2, 2, 2, 3, 3, 3, 3,
3, 3, 3, 4, 4, 4, 4, 4,
5, 5, 5, 5, 6, 6, 6, 6,
7, 7, 7, 7, 8, 8, 8, 9,
9, 9, 10, 10, 11, 11, 12, 12,
13, 13, 14, 14, 15, 15, 16, 16,
17, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38,
0, 0, 0, 0, 0, 1, 1, 1,
1, 1, 2, 2, 2, 3, 3, 4,
4, 5, 5, 6, 6, 7, 7, 8,
8, 9, 9, 10, 10, 11, 11, 12,
12, 13, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42,
43, 44,
};
static const int8_t inter_rvlc_level[169]={
1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 1, 2, 3,
4, 5, 6, 7, 1, 2, 3, 4,
5, 6, 7, 1, 2, 3, 4, 5,
1, 2, 3, 4, 1, 2, 3, 4,
1, 2, 3, 4, 1, 2, 3, 1,
2, 3, 1, 2, 1, 2, 1, 2,
1, 2, 1, 2, 1, 2, 1, 2,
1, 2, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1,
1, 2, 3, 4, 5, 1, 2, 3,
4, 5, 1, 2, 3, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1,
};
static RLTable rvlc_rl_inter = {
169,
103,
inter_rvlc,
inter_rvlc_run,
inter_rvlc_level,
};
static const uint16_t intra_rvlc[170][2]={
{0x0006, 3},{0x0007, 3},{0x000A, 4},{0x0009, 5},
{0x0014, 6},{0x0015, 6},{0x0034, 7},{0x0074, 8},
{0x0075, 8},{0x00DD, 9},{0x00EC, 9},{0x01EC, 10},
{0x01ED, 10},{0x01F4, 10},{0x03EC, 11},{0x03ED, 11},
{0x03F4, 11},{0x077D, 12},{0x07BC, 12},{0x0FBD, 13},
{0x0FDC, 13},{0x07BD, 12},{0x0FDD, 13},{0x1FBD, 14},
{0x1FDC, 14},{0x1FDD, 14},{0x1FFC, 15},{0x0001, 4},
{0x0008, 5},{0x002D, 7},{0x006C, 8},{0x006D, 8},
{0x00DC, 9},{0x01DD, 10},{0x03DC, 11},{0x03DD, 11},
{0x077C, 12},{0x0FBC, 13},{0x1F7D, 14},{0x1FBC, 14},
{0x0004, 5},{0x002C, 7},{0x00BC, 9},{0x01DC, 10},
{0x03BC, 11},{0x03BD, 11},{0x0EFD, 13},{0x0F7C, 13},
{0x0F7D, 13},{0x1EFD, 14},{0x1F7C, 14},{0x0005, 5},
{0x005C, 8},{0x00BD, 9},{0x037D, 11},{0x06FC, 12},
{0x0EFC, 13},{0x1DFD, 14},{0x1EFC, 14},{0x1FFD, 15},
{0x000C, 6},{0x005D, 8},{0x01BD, 10},{0x03FD, 12},
{0x06FD, 12},{0x1BFD, 14},{0x000D, 6},{0x007D, 9},
{0x02FC, 11},{0x05FC, 12},{0x1BFC, 14},{0x1DFC, 14},
{0x001C, 7},{0x017C, 10},{0x02FD, 11},{0x05FD, 12},
{0x2FFC, 15},{0x001D, 7},{0x017D, 10},{0x037C, 11},
{0x0DFD, 13},{0x2FFD, 15},{0x003C, 8},{0x01BC, 10},
{0x0BFD, 13},{0x17FD, 14},{0x003D, 8},{0x01FD, 11},
{0x0DFC, 13},{0x37FC, 15},{0x007C, 9},{0x03FC, 12},
{0x00FC, 10},{0x0BFC, 13},{0x00FD, 10},{0x37FD, 15},
{0x01FC, 11},{0x07FC, 13},{0x07FD, 13},{0x0FFC, 14},
{0x0FFD, 14},{0x17FC, 14},{0x3BFC, 15},
{0x000B, 4},{0x0078, 8},{0x03F5, 11},{0x0FEC, 13},
{0x1FEC, 14},{0x0012, 5},{0x00ED, 9},{0x07DC, 12},
{0x1FED, 14},{0x3BFD, 15},{0x0013, 5},{0x03F8, 11},
{0x3DFC, 15},{0x0018, 6},{0x07DD, 12},{0x0019, 6},
{0x07EC, 12},{0x0022, 6},{0x0FED, 13},{0x0023, 6},
{0x0FF4, 13},{0x0035, 7},{0x0FF5, 13},{0x0038, 7},
{0x0FF8, 13},{0x0039, 7},{0x0FF9, 13},{0x0042, 7},
{0x1FF4, 14},{0x0043, 7},{0x1FF5, 14},{0x0079, 8},
{0x1FF8, 14},{0x0082, 8},{0x3DFD, 15},{0x0083, 8},
{0x00F4, 9},{0x00F5, 9},{0x00F8, 9},{0x00F9, 9},
{0x0102, 9},{0x0103, 9},{0x01F5, 10},{0x01F8, 10},
{0x01F9, 10},{0x0202, 10},{0x0203, 10},{0x03F9, 11},
{0x0402, 11},{0x0403, 11},{0x07ED, 12},{0x07F4, 12},
{0x07F5, 12},{0x07F8, 12},{0x07F9, 12},{0x0802, 12},
{0x0803, 12},{0x1002, 13},{0x1003, 13},{0x1FF9, 14},
{0x2002, 14},{0x2003, 14},{0x3EFC, 15},{0x3EFD, 15},
{0x3F7C, 15},{0x3F7D, 15},{0x0000, 4}
};
static const int8_t intra_rvlc_run[169]={
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 3, 3, 3, 3, 3,
3, 3, 3, 3, 4, 4, 4, 4,
4, 4, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 7, 7, 7,
7, 7, 8, 8, 8, 8, 9, 9,
9, 9, 10, 10, 11, 11, 12, 12,
13, 14, 15, 16, 17, 18, 19,
0, 0, 0, 0, 0, 1, 1, 1,
1, 1, 2, 2, 2, 3, 3, 4,
4, 5, 5, 6, 6, 7, 7, 8,
8, 9, 9, 10, 10, 11, 11, 12,
12, 13, 13, 14, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42,
43, 44,
};
static const int8_t intra_rvlc_level[169]={
1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13,
1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 1, 2, 3, 4, 5,
6, 7, 8, 9, 1, 2, 3, 4,
5, 6, 1, 2, 3, 4, 5, 6,
1, 2, 3, 4, 5, 1, 2, 3,
4, 5, 1, 2, 3, 4, 1, 2,
3, 4, 1, 2, 1, 2, 1, 2,
1, 1, 1, 1, 1, 1, 1,
1, 2, 3, 4, 5, 1, 2, 3,
4, 5, 1, 2, 3, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 2, 1, 2, 1,
2, 1, 2, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1,
1, 1,
};
static RLTable rvlc_rl_intra = {
169,
103,
intra_rvlc,
intra_rvlc_run,
intra_rvlc_level,
};
static const uint16_t sprite_trajectory_tab[15][2] = {
{0x00, 2}, {0x02, 3}, {0x03, 3}, {0x04, 3}, {0x05, 3}, {0x06, 3},
{0x0E, 4}, {0x1E, 5}, {0x3E, 6}, {0x7E, 7}, {0xFE, 8},
{0x1FE, 9},{0x3FE, 10},{0x7FE, 11},{0xFFE, 12},
};
static const uint8_t mb_type_b_tab[4][2] = {
{1, 1}, {1, 2}, {1, 3}, {1, 4},
};
static const AVRational pixel_aspect[16]={
{0, 1},
{1, 1},
{12, 11},
{10, 11},
{16, 11},
{40, 33},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
{0, 1},
};
/* these matrixes will be permuted for the idct */
const int16_t ff_mpeg4_default_intra_matrix[64] = {
8, 17, 18, 19, 21, 23, 25, 27,
17, 18, 19, 21, 23, 25, 27, 28,
20, 21, 22, 23, 24, 26, 28, 30,
21, 22, 23, 24, 26, 28, 30, 32,
22, 23, 24, 26, 28, 30, 32, 35,
23, 24, 26, 28, 30, 32, 35, 38,
25, 26, 28, 30, 32, 35, 38, 41,
27, 28, 30, 32, 35, 38, 41, 45,
};
const int16_t ff_mpeg4_default_non_intra_matrix[64] = {
16, 17, 18, 19, 20, 21, 22, 23,
17, 18, 19, 20, 21, 22, 23, 24,
18, 19, 20, 21, 22, 23, 24, 25,
19, 20, 21, 22, 23, 24, 26, 27,
20, 21, 22, 23, 25, 26, 27, 28,
21, 22, 23, 24, 26, 27, 28, 30,
22, 23, 24, 26, 27, 28, 30, 31,
23, 24, 25, 27, 28, 30, 31, 33,
};
const uint8_t ff_mpeg4_y_dc_scale_table[32]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0, 8, 8, 8, 8,10,12,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,34,36,38,40,42,44,46
};
const uint8_t ff_mpeg4_c_dc_scale_table[32]={
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0, 8, 8, 8, 8, 9, 9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,20,21,22,23,24,25
};
const uint16_t ff_mpeg4_resync_prefix[8]={
0x7F00, 0x7E00, 0x7C00, 0x7800, 0x7000, 0x6000, 0x4000, 0x0000
};
static const uint8_t mpeg4_dc_threshold[8]={
99, 13, 15, 17, 19, 21, 23, 0
};
|
