FFmpeg
mpeg12data.c
Go to the documentation of this file.
1 /*
2  * MPEG-1/2 tables
3  * copyright (c) 2000,2001 Fabrice Bellard
4  * copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * MPEG-1/2 tables.
26  */
27 
28 #include "mpeg12data.h"
29 
30 const uint16_t ff_mpeg1_default_intra_matrix[256] = {
31  8, 16, 19, 22, 26, 27, 29, 34,
32  16, 16, 22, 24, 27, 29, 34, 37,
33  19, 22, 26, 27, 29, 34, 34, 38,
34  22, 22, 26, 27, 29, 34, 37, 40,
35  22, 26, 27, 29, 32, 35, 40, 48,
36  26, 27, 29, 32, 35, 40, 48, 58,
37  26, 27, 29, 34, 38, 46, 56, 69,
38  27, 29, 35, 38, 46, 56, 69, 83
39 };
40 
41 const uint16_t ff_mpeg1_default_non_intra_matrix[64] = {
42  16, 16, 16, 16, 16, 16, 16, 16,
43  16, 16, 16, 16, 16, 16, 16, 16,
44  16, 16, 16, 16, 16, 16, 16, 16,
45  16, 16, 16, 16, 16, 16, 16, 16,
46  16, 16, 16, 16, 16, 16, 16, 16,
47  16, 16, 16, 16, 16, 16, 16, 16,
48  16, 16, 16, 16, 16, 16, 16, 16,
49  16, 16, 16, 16, 16, 16, 16, 16,
50 };
51 
52 const uint16_t ff_mpeg12_vlc_dc_lum_code[12] = {
53  0x4, 0x0, 0x1, 0x5, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x1ff,
54 };
55 const unsigned char ff_mpeg12_vlc_dc_lum_bits[12] = {
56  3, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 9,
57 };
58 
59 const uint16_t ff_mpeg12_vlc_dc_chroma_code[12] = {
60  0x0, 0x1, 0x2, 0x6, 0xe, 0x1e, 0x3e, 0x7e, 0xfe, 0x1fe, 0x3fe, 0x3ff,
61 };
62 const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12] = {
63  2, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10,
64 };
65 
66 static const uint16_t mpeg1_vlc[113][2] = {
67  { 0x3, 2 }, { 0x4, 4 }, { 0x5, 5 }, { 0x6, 7 },
68  { 0x26, 8 }, { 0x21, 8 }, { 0xa, 10 }, { 0x1d, 12 },
69  { 0x18, 12 }, { 0x13, 12 }, { 0x10, 12 }, { 0x1a, 13 },
70  { 0x19, 13 }, { 0x18, 13 }, { 0x17, 13 }, { 0x1f, 14 },
71  { 0x1e, 14 }, { 0x1d, 14 }, { 0x1c, 14 }, { 0x1b, 14 },
72  { 0x1a, 14 }, { 0x19, 14 }, { 0x18, 14 }, { 0x17, 14 },
73  { 0x16, 14 }, { 0x15, 14 }, { 0x14, 14 }, { 0x13, 14 },
74  { 0x12, 14 }, { 0x11, 14 }, { 0x10, 14 }, { 0x18, 15 },
75  { 0x17, 15 }, { 0x16, 15 }, { 0x15, 15 }, { 0x14, 15 },
76  { 0x13, 15 }, { 0x12, 15 }, { 0x11, 15 }, { 0x10, 15 },
77  { 0x3, 3 }, { 0x6, 6 }, { 0x25, 8 }, { 0xc, 10 },
78  { 0x1b, 12 }, { 0x16, 13 }, { 0x15, 13 }, { 0x1f, 15 },
79  { 0x1e, 15 }, { 0x1d, 15 }, { 0x1c, 15 }, { 0x1b, 15 },
80  { 0x1a, 15 }, { 0x19, 15 }, { 0x13, 16 }, { 0x12, 16 },
81  { 0x11, 16 }, { 0x10, 16 }, { 0x5, 4 }, { 0x4, 7 },
82  { 0xb, 10 }, { 0x14, 12 }, { 0x14, 13 }, { 0x7, 5 },
83  { 0x24, 8 }, { 0x1c, 12 }, { 0x13, 13 }, { 0x6, 5 },
84  { 0xf, 10 }, { 0x12, 12 }, { 0x7, 6 }, { 0x9, 10 },
85  { 0x12, 13 }, { 0x5, 6 }, { 0x1e, 12 }, { 0x14, 16 },
86  { 0x4, 6 }, { 0x15, 12 }, { 0x7, 7 }, { 0x11, 12 },
87  { 0x5, 7 }, { 0x11, 13 }, { 0x27, 8 }, { 0x10, 13 },
88  { 0x23, 8 }, { 0x1a, 16 }, { 0x22, 8 }, { 0x19, 16 },
89  { 0x20, 8 }, { 0x18, 16 }, { 0xe, 10 }, { 0x17, 16 },
90  { 0xd, 10 }, { 0x16, 16 }, { 0x8, 10 }, { 0x15, 16 },
91  { 0x1f, 12 }, { 0x1a, 12 }, { 0x19, 12 }, { 0x17, 12 },
92  { 0x16, 12 }, { 0x1f, 13 }, { 0x1e, 13 }, { 0x1d, 13 },
93  { 0x1c, 13 }, { 0x1b, 13 }, { 0x1f, 16 }, { 0x1e, 16 },
94  { 0x1d, 16 }, { 0x1c, 16 }, { 0x1b, 16 },
95  { 0x1, 6 }, /* escape */
96  { 0x2, 2 }, /* EOB */
97 };
98 
99 static const uint16_t mpeg2_vlc[113][2] = {
100  {0x02, 2}, {0x06, 3}, {0x07, 4}, {0x1c, 5},
101  {0x1d, 5}, {0x05, 6}, {0x04, 6}, {0x7b, 7},
102  {0x7c, 7}, {0x23, 8}, {0x22, 8}, {0xfa, 8},
103  {0xfb, 8}, {0xfe, 8}, {0xff, 8}, {0x1f,14},
104  {0x1e,14}, {0x1d,14}, {0x1c,14}, {0x1b,14},
105  {0x1a,14}, {0x19,14}, {0x18,14}, {0x17,14},
106  {0x16,14}, {0x15,14}, {0x14,14}, {0x13,14},
107  {0x12,14}, {0x11,14}, {0x10,14}, {0x18,15},
108  {0x17,15}, {0x16,15}, {0x15,15}, {0x14,15},
109  {0x13,15}, {0x12,15}, {0x11,15}, {0x10,15},
110  {0x02, 3}, {0x06, 5}, {0x79, 7}, {0x27, 8},
111  {0x20, 8}, {0x16,13}, {0x15,13}, {0x1f,15},
112  {0x1e,15}, {0x1d,15}, {0x1c,15}, {0x1b,15},
113  {0x1a,15}, {0x19,15}, {0x13,16}, {0x12,16},
114  {0x11,16}, {0x10,16}, {0x05, 5}, {0x07, 7},
115  {0xfc, 8}, {0x0c,10}, {0x14,13}, {0x07, 5},
116  {0x26, 8}, {0x1c,12}, {0x13,13}, {0x06, 6},
117  {0xfd, 8}, {0x12,12}, {0x07, 6}, {0x04, 9},
118  {0x12,13}, {0x06, 7}, {0x1e,12}, {0x14,16},
119  {0x04, 7}, {0x15,12}, {0x05, 7}, {0x11,12},
120  {0x78, 7}, {0x11,13}, {0x7a, 7}, {0x10,13},
121  {0x21, 8}, {0x1a,16}, {0x25, 8}, {0x19,16},
122  {0x24, 8}, {0x18,16}, {0x05, 9}, {0x17,16},
123  {0x07, 9}, {0x16,16}, {0x0d,10}, {0x15,16},
124  {0x1f,12}, {0x1a,12}, {0x19,12}, {0x17,12},
125  {0x16,12}, {0x1f,13}, {0x1e,13}, {0x1d,13},
126  {0x1c,13}, {0x1b,13}, {0x1f,16}, {0x1e,16},
127  {0x1d,16}, {0x1c,16}, {0x1b,16},
128  {0x01,6}, /* escape */
129  {0x06,4}, /* EOB */
130 };
131 
132 static const int8_t mpeg1_level[111] = {
133  1, 2, 3, 4, 5, 6, 7, 8,
134  9, 10, 11, 12, 13, 14, 15, 16,
135  17, 18, 19, 20, 21, 22, 23, 24,
136  25, 26, 27, 28, 29, 30, 31, 32,
137  33, 34, 35, 36, 37, 38, 39, 40,
138  1, 2, 3, 4, 5, 6, 7, 8,
139  9, 10, 11, 12, 13, 14, 15, 16,
140  17, 18, 1, 2, 3, 4, 5, 1,
141  2, 3, 4, 1, 2, 3, 1, 2,
142  3, 1, 2, 3, 1, 2, 1, 2,
143  1, 2, 1, 2, 1, 2, 1, 2,
144  1, 2, 1, 2, 1, 2, 1, 2,
145  1, 1, 1, 1, 1, 1, 1, 1,
146  1, 1, 1, 1, 1, 1, 1,
147 };
148 
149 static const int8_t mpeg1_run[111] = {
150  0, 0, 0, 0, 0, 0, 0, 0,
151  0, 0, 0, 0, 0, 0, 0, 0,
152  0, 0, 0, 0, 0, 0, 0, 0,
153  0, 0, 0, 0, 0, 0, 0, 0,
154  0, 0, 0, 0, 0, 0, 0, 0,
155  1, 1, 1, 1, 1, 1, 1, 1,
156  1, 1, 1, 1, 1, 1, 1, 1,
157  1, 1, 2, 2, 2, 2, 2, 3,
158  3, 3, 3, 4, 4, 4, 5, 5,
159  5, 6, 6, 6, 7, 7, 8, 8,
160  9, 9, 10, 10, 11, 11, 12, 12,
161  13, 13, 14, 14, 15, 15, 16, 16,
162  17, 18, 19, 20, 21, 22, 23, 24,
163  25, 26, 27, 28, 29, 30, 31,
164 };
165 
166 RLTable ff_rl_mpeg1 = {
167  111,
168  111,
169  mpeg1_vlc,
170  mpeg1_run,
171  mpeg1_level,
172 };
173 
174 RLTable ff_rl_mpeg2 = {
175  111,
176  111,
177  mpeg2_vlc,
178  mpeg1_run,
179  mpeg1_level,
180 };
181 
182 const uint8_t ff_mpeg12_mbAddrIncrTable[36][2] = {
183  {0x1, 1},
184  {0x3, 3},
185  {0x2, 3},
186  {0x3, 4},
187  {0x2, 4},
188  {0x3, 5},
189  {0x2, 5},
190  {0x7, 7},
191  {0x6, 7},
192  {0xb, 8},
193  {0xa, 8},
194  {0x9, 8},
195  {0x8, 8},
196  {0x7, 8},
197  {0x6, 8},
198  {0x17, 10},
199  {0x16, 10},
200  {0x15, 10},
201  {0x14, 10},
202  {0x13, 10},
203  {0x12, 10},
204  {0x23, 11},
205  {0x22, 11},
206  {0x21, 11},
207  {0x20, 11},
208  {0x1f, 11},
209  {0x1e, 11},
210  {0x1d, 11},
211  {0x1c, 11},
212  {0x1b, 11},
213  {0x1a, 11},
214  {0x19, 11},
215  {0x18, 11},
216  {0x8, 11}, /* escape */
217  {0xf, 11}, /* stuffing */
218  {0x0, 8}, /* end (and 15 more 0 bits should follow) */
219 };
220 
221 const uint8_t ff_mpeg12_mbPatTable[64][2] = {
222  {0x1, 9},
223  {0xb, 5},
224  {0x9, 5},
225  {0xd, 6},
226  {0xd, 4},
227  {0x17, 7},
228  {0x13, 7},
229  {0x1f, 8},
230  {0xc, 4},
231  {0x16, 7},
232  {0x12, 7},
233  {0x1e, 8},
234  {0x13, 5},
235  {0x1b, 8},
236  {0x17, 8},
237  {0x13, 8},
238  {0xb, 4},
239  {0x15, 7},
240  {0x11, 7},
241  {0x1d, 8},
242  {0x11, 5},
243  {0x19, 8},
244  {0x15, 8},
245  {0x11, 8},
246  {0xf, 6},
247  {0xf, 8},
248  {0xd, 8},
249  {0x3, 9},
250  {0xf, 5},
251  {0xb, 8},
252  {0x7, 8},
253  {0x7, 9},
254  {0xa, 4},
255  {0x14, 7},
256  {0x10, 7},
257  {0x1c, 8},
258  {0xe, 6},
259  {0xe, 8},
260  {0xc, 8},
261  {0x2, 9},
262  {0x10, 5},
263  {0x18, 8},
264  {0x14, 8},
265  {0x10, 8},
266  {0xe, 5},
267  {0xa, 8},
268  {0x6, 8},
269  {0x6, 9},
270  {0x12, 5},
271  {0x1a, 8},
272  {0x16, 8},
273  {0x12, 8},
274  {0xd, 5},
275  {0x9, 8},
276  {0x5, 8},
277  {0x5, 9},
278  {0xc, 5},
279  {0x8, 8},
280  {0x4, 8},
281  {0x4, 9},
282  {0x7, 3},
283  {0xa, 5},
284  {0x8, 5},
285  {0xc, 6}
286 };
287 
288 const uint8_t ff_mpeg12_mbMotionVectorTable[17][2] = {
289 { 0x1, 1 },
290 { 0x1, 2 },
291 { 0x1, 3 },
292 { 0x1, 4 },
293 { 0x3, 6 },
294 { 0x5, 7 },
295 { 0x4, 7 },
296 { 0x3, 7 },
297 { 0xb, 9 },
298 { 0xa, 9 },
299 { 0x9, 9 },
300 { 0x11, 10 },
301 { 0x10, 10 },
302 { 0xf, 10 },
303 { 0xe, 10 },
304 { 0xd, 10 },
305 { 0xc, 10 },
306 };
307 
308 const AVRational ff_mpeg2_frame_rate_tab[] = {
309  { 1, 1},
310  { 2, 1},
311  { 3, 1},
312  { 4, 1},
313  { 5, 1},
314  { 6, 1},
315  { 8, 1},
316  { 9, 1},
317  { 10, 1},
318  { 12, 1},
319  { 15, 1},
320  { 16, 1},
321  { 18, 1},
322  { 20, 1},
323  { 24, 1},
324  { 25, 1},
325  { 30, 1},
326  { 32, 1},
327  { 36, 1},
328  { 40, 1},
329  { 45, 1},
330  { 48, 1},
331  { 50, 1},
332  { 60, 1},
333  { 72, 1},
334  { 75, 1},
335  { 80, 1},
336  { 90, 1},
337  { 96, 1},
338  { 100, 1},
339  { 120, 1},
340  { 150, 1},
341  { 180, 1},
342  { 200, 1},
343  { 240, 1},
344  { 750, 1001},
345  { 800, 1001},
346  { 960, 1001},
347  { 1000, 1001},
348  { 1200, 1001},
349  { 1250, 1001},
350  { 1500, 1001},
351  { 1600, 1001},
352  { 1875, 1001},
353  { 2000, 1001},
354  { 2400, 1001},
355  { 2500, 1001},
356  { 3000, 1001},
357  { 3750, 1001},
358  { 4000, 1001},
359  { 4800, 1001},
360  { 5000, 1001},
361  { 6000, 1001},
362  { 7500, 1001},
363  { 8000, 1001},
364  { 10000, 1001},
365  { 12000, 1001},
366  { 15000, 1001},
367  { 20000, 1001},
368  { 24000, 1001},
369  { 30000, 1001},
370  { 60000, 1001},
371  { 0, 0},
372 };
373 
374 const float ff_mpeg1_aspect[16]={
375  0.0000,
376  1.0000,
377  0.6735,
378  0.7031,
379 
380  0.7615,
381  0.8055,
382  0.8437,
383  0.8935,
384 
385  0.9157,
386  0.9815,
387  1.0255,
388  1.0695,
389 
390  1.0950,
391  1.1575,
392  1.2015,
393 };
394 
395 const AVRational ff_mpeg2_aspect[16]={
396  {0,1},
397  {1,1},
398  {4,3},
399  {16,9},
400  {221,100},
401  {0,1},
402  {0,1},
403  {0,1},
404  {0,1},
405  {0,1},
406  {0,1},
407  {0,1},
408  {0,1},
409  {0,1},
410  {0,1},
411  {0,1},
412 };
ff_rl_mpeg2
RLTable ff_rl_mpeg2
Definition: mpeg12data.c:174
ff_mpeg2_aspect
const AVRational ff_mpeg2_aspect[16]
Definition: mpeg12data.c:395
ff_mpeg12_vlc_dc_chroma_bits
const unsigned char ff_mpeg12_vlc_dc_chroma_bits[12]
Definition: mpeg12data.c:62
ff_mpeg12_vlc_dc_lum_bits
const unsigned char ff_mpeg12_vlc_dc_lum_bits[12]
Definition: mpeg12data.c:55
ff_mpeg12_mbAddrIncrTable
const uint8_t ff_mpeg12_mbAddrIncrTable[36][2]
Definition: mpeg12data.c:182
ff_mpeg2_frame_rate_tab
const AVRational ff_mpeg2_frame_rate_tab[]
Definition: mpeg12data.c:308
RLTable
RLTable.
Definition: rl.h:39
ff_mpeg12_mbMotionVectorTable
const uint8_t ff_mpeg12_mbMotionVectorTable[17][2]
Definition: mpeg12data.c:288
mpeg1_vlc
static const uint16_t mpeg1_vlc[113][2]
Definition: mpeg12data.c:66
ff_rl_mpeg1
RLTable ff_rl_mpeg1
Definition: mpeg12data.c:166
ff_mpeg1_aspect
const float ff_mpeg1_aspect[16]
Definition: mpeg12data.c:374
mpeg1_level
static const int8_t mpeg1_level[111]
Definition: mpeg12data.c:132
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
mpeg2_vlc
static const uint16_t mpeg2_vlc[113][2]
Definition: mpeg12data.c:99
ff_mpeg1_default_intra_matrix
const uint16_t ff_mpeg1_default_intra_matrix[256]
Definition: mpeg12data.c:30
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_mpeg12_mbPatTable
const uint8_t ff_mpeg12_mbPatTable[64][2]
Definition: mpeg12data.c:221
ff_mpeg12_vlc_dc_chroma_code
const uint16_t ff_mpeg12_vlc_dc_chroma_code[12]
Definition: mpeg12data.c:59
mpeg1_run
static const int8_t mpeg1_run[111]
Definition: mpeg12data.c:149
ff_mpeg1_default_non_intra_matrix
const uint16_t ff_mpeg1_default_non_intra_matrix[64]
Definition: mpeg12data.c:41
mpeg12data.h
ff_mpeg12_vlc_dc_lum_code
const uint16_t ff_mpeg12_vlc_dc_lum_code[12]
Definition: mpeg12data.c:52
Generated on Wed Aug 24 2022 21:26:51 for FFmpeg by   doxygen 1.8.17