xine-lib  1.2.10
vlc.h
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1 /*
2  * vlc.h
3  * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
4  * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
5  *
6  * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
7  * See http://libmpeg2.sourceforge.net/ for updates.
8  *
9  * mpeg2dec is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * mpeg2dec is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  */
23 
24 #define GETWORD(bit_buf,shift,bit_ptr) \
25 do { \
26  bit_buf |= ((bit_ptr[0] << 8) | bit_ptr[1]) << (shift); \
27  bit_ptr += 2; \
28 } while (0)
29 
30 static inline void bitstream_init (mpeg2_decoder_t * decoder,
31  const uint8_t * start)
32 {
33  decoder->bitstream_buf =
34  (start[0] << 24) | (start[1] << 16) | (start[2] << 8) | start[3];
35  decoder->bitstream_ptr = start + 4;
36  decoder->bitstream_bits = -16;
37 }
38 
39 /* make sure that there are at least 16 valid bits in bit_buf */
40 #define NEEDBITS(bit_buf,bits,bit_ptr) \
41 do { \
42  if (unlikely (bits > 0)) { \
43  GETWORD (bit_buf, bits, bit_ptr); \
44  bits -= 16; \
45  } \
46 } while (0)
47 
48 /* remove num valid bits from bit_buf */
49 #define DUMPBITS(bit_buf,bits,num) \
50 do { \
51  bit_buf <<= (num); \
52  bits += (num); \
53 } while (0)
54 
55 /* take num bits from the high part of bit_buf and zero extend them */
56 #define UBITS(bit_buf,num) (((uint32_t)(bit_buf)) >> (32 - (num)))
57 
58 /* take num bits from the high part of bit_buf and sign extend them */
59 #define SBITS(bit_buf,num) (((int32_t)(bit_buf)) >> (32 - (num)))
60 
61 typedef struct {
62  uint8_t modes;
63  uint8_t len;
64 } MBtab;
65 
66 typedef struct {
67  uint8_t delta;
68  uint8_t len;
69 } MVtab;
70 
71 typedef struct {
72  int8_t dmv;
73  uint8_t len;
74 } DMVtab;
75 
76 typedef struct {
77  uint8_t cbp;
78  uint8_t len;
79 } CBPtab;
80 
81 typedef struct {
82  uint8_t size;
83  uint8_t len;
84 } DCtab;
85 
86 typedef struct {
87  uint8_t run;
88  uint8_t level;
89  uint8_t len;
90 } DCTtab;
91 
92 typedef struct {
93  uint8_t mba;
94  uint8_t len;
95 } MBAtab;
96 
97 
98 #define INTRA MACROBLOCK_INTRA
99 #define QUANT MACROBLOCK_QUANT
100 
101 static const MBtab MB_I [] = {
102  {INTRA|QUANT, 2}, {INTRA, 1}
103 };
104 
105 #define MC MACROBLOCK_MOTION_FORWARD
106 #define CODED MACROBLOCK_PATTERN
107 
108 static const MBtab MB_P [] = {
109  {INTRA|QUANT, 6}, {CODED|QUANT, 5}, {MC|CODED|QUANT, 5}, {INTRA, 5},
110  {MC, 3}, {MC, 3}, {MC, 3}, {MC, 3},
111  {CODED, 2}, {CODED, 2}, {CODED, 2}, {CODED, 2},
112  {CODED, 2}, {CODED, 2}, {CODED, 2}, {CODED, 2},
113  {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
114  {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
115  {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1},
116  {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}, {MC|CODED, 1}
117 };
118 
119 #define FWD MACROBLOCK_MOTION_FORWARD
120 #define BWD MACROBLOCK_MOTION_BACKWARD
121 #define INTER MACROBLOCK_MOTION_FORWARD|MACROBLOCK_MOTION_BACKWARD
122 
123 static const MBtab MB_B [] = {
124  {0, 6}, {INTRA|QUANT, 6},
125  {BWD|CODED|QUANT, 6}, {FWD|CODED|QUANT, 6},
126  {INTER|CODED|QUANT, 5}, {INTER|CODED|QUANT, 5},
127  {INTRA, 5}, {INTRA, 5},
128  {FWD, 4}, {FWD, 4}, {FWD, 4}, {FWD, 4},
129  {FWD|CODED, 4}, {FWD|CODED, 4}, {FWD|CODED, 4}, {FWD|CODED, 4},
130  {BWD, 3}, {BWD, 3}, {BWD, 3}, {BWD, 3},
131  {BWD, 3}, {BWD, 3}, {BWD, 3}, {BWD, 3},
132  {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3},
133  {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3}, {BWD|CODED, 3},
134  {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
135  {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
136  {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
137  {INTER, 2}, {INTER, 2}, {INTER, 2}, {INTER, 2},
138  {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
139  {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
140  {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2},
141  {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}, {INTER|CODED, 2}
142 };
143 
144 #undef INTRA
145 #undef QUANT
146 #undef MC
147 #undef CODED
148 #undef FWD
149 #undef BWD
150 #undef INTER
151 
152 
153 static const MVtab MV_4 [] = {
154  { 3, 6}, { 2, 4}, { 1, 3}, { 1, 3}, { 0, 2}, { 0, 2}, { 0, 2}, { 0, 2}
155 };
156 
157 static const MVtab MV_10 [] = {
158  { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10}, { 0,10},
159  { 0,10}, { 0,10}, { 0,10}, { 0,10}, {15,10}, {14,10}, {13,10}, {12,10},
160  {11,10}, {10,10}, { 9, 9}, { 9, 9}, { 8, 9}, { 8, 9}, { 7, 9}, { 7, 9},
161  { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7}, { 6, 7},
162  { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7}, { 5, 7},
163  { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}, { 4, 7}
164 };
165 
166 
167 static const DMVtab DMV_2 [] = {
168  { 0, 1}, { 0, 1}, { 1, 2}, {-1, 2}
169 };
170 
171 
172 static const CBPtab CBP_7 [] = {
173  {0x11, 7}, {0x12, 7}, {0x14, 7}, {0x18, 7},
174  {0x21, 7}, {0x22, 7}, {0x24, 7}, {0x28, 7},
175  {0x3f, 6}, {0x3f, 6}, {0x30, 6}, {0x30, 6},
176  {0x09, 6}, {0x09, 6}, {0x06, 6}, {0x06, 6},
177  {0x1f, 5}, {0x1f, 5}, {0x1f, 5}, {0x1f, 5},
178  {0x10, 5}, {0x10, 5}, {0x10, 5}, {0x10, 5},
179  {0x2f, 5}, {0x2f, 5}, {0x2f, 5}, {0x2f, 5},
180  {0x20, 5}, {0x20, 5}, {0x20, 5}, {0x20, 5},
181  {0x07, 5}, {0x07, 5}, {0x07, 5}, {0x07, 5},
182  {0x0b, 5}, {0x0b, 5}, {0x0b, 5}, {0x0b, 5},
183  {0x0d, 5}, {0x0d, 5}, {0x0d, 5}, {0x0d, 5},
184  {0x0e, 5}, {0x0e, 5}, {0x0e, 5}, {0x0e, 5},
185  {0x05, 5}, {0x05, 5}, {0x05, 5}, {0x05, 5},
186  {0x0a, 5}, {0x0a, 5}, {0x0a, 5}, {0x0a, 5},
187  {0x03, 5}, {0x03, 5}, {0x03, 5}, {0x03, 5},
188  {0x0c, 5}, {0x0c, 5}, {0x0c, 5}, {0x0c, 5},
189  {0x01, 4}, {0x01, 4}, {0x01, 4}, {0x01, 4},
190  {0x01, 4}, {0x01, 4}, {0x01, 4}, {0x01, 4},
191  {0x02, 4}, {0x02, 4}, {0x02, 4}, {0x02, 4},
192  {0x02, 4}, {0x02, 4}, {0x02, 4}, {0x02, 4},
193  {0x04, 4}, {0x04, 4}, {0x04, 4}, {0x04, 4},
194  {0x04, 4}, {0x04, 4}, {0x04, 4}, {0x04, 4},
195  {0x08, 4}, {0x08, 4}, {0x08, 4}, {0x08, 4},
196  {0x08, 4}, {0x08, 4}, {0x08, 4}, {0x08, 4},
197  {0x0f, 3}, {0x0f, 3}, {0x0f, 3}, {0x0f, 3},
198  {0x0f, 3}, {0x0f, 3}, {0x0f, 3}, {0x0f, 3},
199  {0x0f, 3}, {0x0f, 3}, {0x0f, 3}, {0x0f, 3},
200  {0x0f, 3}, {0x0f, 3}, {0x0f, 3}, {0x0f, 3}
201 };
202 
203 static const CBPtab CBP_9 [] = {
204  {0, 9}, {0x00, 9}, {0x39, 9}, {0x36, 9},
205  {0x37, 9}, {0x3b, 9}, {0x3d, 9}, {0x3e, 9},
206  {0x17, 8}, {0x17, 8}, {0x1b, 8}, {0x1b, 8},
207  {0x1d, 8}, {0x1d, 8}, {0x1e, 8}, {0x1e, 8},
208  {0x27, 8}, {0x27, 8}, {0x2b, 8}, {0x2b, 8},
209  {0x2d, 8}, {0x2d, 8}, {0x2e, 8}, {0x2e, 8},
210  {0x19, 8}, {0x19, 8}, {0x16, 8}, {0x16, 8},
211  {0x29, 8}, {0x29, 8}, {0x26, 8}, {0x26, 8},
212  {0x35, 8}, {0x35, 8}, {0x3a, 8}, {0x3a, 8},
213  {0x33, 8}, {0x33, 8}, {0x3c, 8}, {0x3c, 8},
214  {0x15, 8}, {0x15, 8}, {0x1a, 8}, {0x1a, 8},
215  {0x13, 8}, {0x13, 8}, {0x1c, 8}, {0x1c, 8},
216  {0x25, 8}, {0x25, 8}, {0x2a, 8}, {0x2a, 8},
217  {0x23, 8}, {0x23, 8}, {0x2c, 8}, {0x2c, 8},
218  {0x31, 8}, {0x31, 8}, {0x32, 8}, {0x32, 8},
219  {0x34, 8}, {0x34, 8}, {0x38, 8}, {0x38, 8}
220 };
221 
222 
223 static const DCtab DC_lum_5 [] = {
224  {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
225  {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
226  {0, 3}, {0, 3}, {0, 3}, {0, 3}, {3, 3}, {3, 3}, {3, 3}, {3, 3},
227  {4, 3}, {4, 3}, {4, 3}, {4, 3}, {5, 4}, {5, 4}, {6, 5}
228 };
229 
230 static const DCtab DC_chrom_5 [] = {
231  {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2}, {0, 2},
232  {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2},
233  {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2}, {2, 2},
234  {3, 3}, {3, 3}, {3, 3}, {3, 3}, {4, 4}, {4, 4}, {5, 5}
235 };
236 
237 static const DCtab DC_long [] = {
238  {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, { 6, 5}, { 6, 5},
239  {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, {6, 5}, { 6, 5}, { 6, 5},
240  {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, {7, 6}, { 7, 6}, { 7, 6},
241  {8, 7}, {8, 7}, {8, 7}, {8, 7}, {9, 8}, {9, 8}, {10, 9}, {11, 9}
242 };
243 
244 
245 static const DCTtab DCT_16 [] = {
246  {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
247  {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
248  {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
249  {129, 0, 0}, {129, 0, 0}, {129, 0, 0}, {129, 0, 0},
250  { 2,18, 0}, { 2,17, 0}, { 2,16, 0}, { 2,15, 0},
251  { 7, 3, 0}, { 17, 2, 0}, { 16, 2, 0}, { 15, 2, 0},
252  { 14, 2, 0}, { 13, 2, 0}, { 12, 2, 0}, { 32, 1, 0},
253  { 31, 1, 0}, { 30, 1, 0}, { 29, 1, 0}, { 28, 1, 0}
254 };
255 
256 static const DCTtab DCT_15 [] = {
257  { 1,40,15}, { 1,39,15}, { 1,38,15}, { 1,37,15},
258  { 1,36,15}, { 1,35,15}, { 1,34,15}, { 1,33,15},
259  { 1,32,15}, { 2,14,15}, { 2,13,15}, { 2,12,15},
260  { 2,11,15}, { 2,10,15}, { 2, 9,15}, { 2, 8,15},
261  { 1,31,14}, { 1,31,14}, { 1,30,14}, { 1,30,14},
262  { 1,29,14}, { 1,29,14}, { 1,28,14}, { 1,28,14},
263  { 1,27,14}, { 1,27,14}, { 1,26,14}, { 1,26,14},
264  { 1,25,14}, { 1,25,14}, { 1,24,14}, { 1,24,14},
265  { 1,23,14}, { 1,23,14}, { 1,22,14}, { 1,22,14},
266  { 1,21,14}, { 1,21,14}, { 1,20,14}, { 1,20,14},
267  { 1,19,14}, { 1,19,14}, { 1,18,14}, { 1,18,14},
268  { 1,17,14}, { 1,17,14}, { 1,16,14}, { 1,16,14}
269 };
270 
271 static const DCTtab DCT_13 [] = {
272  { 11, 2,13}, { 10, 2,13}, { 6, 3,13}, { 4, 4,13},
273  { 3, 5,13}, { 2, 7,13}, { 2, 6,13}, { 1,15,13},
274  { 1,14,13}, { 1,13,13}, { 1,12,13}, { 27, 1,13},
275  { 26, 1,13}, { 25, 1,13}, { 24, 1,13}, { 23, 1,13},
276  { 1,11,12}, { 1,11,12}, { 9, 2,12}, { 9, 2,12},
277  { 5, 3,12}, { 5, 3,12}, { 1,10,12}, { 1,10,12},
278  { 3, 4,12}, { 3, 4,12}, { 8, 2,12}, { 8, 2,12},
279  { 22, 1,12}, { 22, 1,12}, { 21, 1,12}, { 21, 1,12},
280  { 1, 9,12}, { 1, 9,12}, { 20, 1,12}, { 20, 1,12},
281  { 19, 1,12}, { 19, 1,12}, { 2, 5,12}, { 2, 5,12},
282  { 4, 3,12}, { 4, 3,12}, { 1, 8,12}, { 1, 8,12},
283  { 7, 2,12}, { 7, 2,12}, { 18, 1,12}, { 18, 1,12}
284 };
285 
286 static const DCTtab DCT_B14_10 [] = {
287  { 17, 1,10}, { 6, 2,10}, { 1, 7,10}, { 3, 3,10},
288  { 2, 4,10}, { 16, 1,10}, { 15, 1,10}, { 5, 2,10}
289 };
290 
291 static const DCTtab DCT_B14_8 [] = {
292  { 65, 0,12}, { 65, 0,12}, { 65, 0,12}, { 65, 0,12},
293  { 3, 2, 7}, { 3, 2, 7}, { 10, 1, 7}, { 10, 1, 7},
294  { 1, 4, 7}, { 1, 4, 7}, { 9, 1, 7}, { 9, 1, 7},
295  { 8, 1, 6}, { 8, 1, 6}, { 8, 1, 6}, { 8, 1, 6},
296  { 7, 1, 6}, { 7, 1, 6}, { 7, 1, 6}, { 7, 1, 6},
297  { 2, 2, 6}, { 2, 2, 6}, { 2, 2, 6}, { 2, 2, 6},
298  { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6},
299  { 14, 1, 8}, { 1, 6, 8}, { 13, 1, 8}, { 12, 1, 8},
300  { 4, 2, 8}, { 2, 3, 8}, { 1, 5, 8}, { 11, 1, 8}
301 };
302 
303 static const DCTtab DCT_B14AC_5 [] = {
304  { 1, 3, 5}, { 5, 1, 5}, { 4, 1, 5},
305  { 1, 2, 4}, { 1, 2, 4}, { 3, 1, 4}, { 3, 1, 4},
306  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
307  {129, 0, 2}, {129, 0, 2}, {129, 0, 2}, {129, 0, 2},
308  {129, 0, 2}, {129, 0, 2}, {129, 0, 2}, {129, 0, 2},
309  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
310  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}
311 };
312 
313 static const DCTtab DCT_B14DC_5 [] = {
314  { 1, 3, 5}, { 5, 1, 5}, { 4, 1, 5},
315  { 1, 2, 4}, { 1, 2, 4}, { 3, 1, 4}, { 3, 1, 4},
316  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
317  { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
318  { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
319  { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1},
320  { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}, { 1, 1, 1}
321 };
322 
323 static const DCTtab DCT_B15_10 [] = {
324  { 6, 2, 9}, { 6, 2, 9}, { 15, 1, 9}, { 15, 1, 9},
325  { 3, 4,10}, { 17, 1,10}, { 16, 1, 9}, { 16, 1, 9}
326 };
327 
328 static const DCTtab DCT_B15_8 [] = {
329  { 65, 0,12}, { 65, 0,12}, { 65, 0,12}, { 65, 0,12},
330  { 8, 1, 7}, { 8, 1, 7}, { 9, 1, 7}, { 9, 1, 7},
331  { 7, 1, 7}, { 7, 1, 7}, { 3, 2, 7}, { 3, 2, 7},
332  { 1, 7, 6}, { 1, 7, 6}, { 1, 7, 6}, { 1, 7, 6},
333  { 1, 6, 6}, { 1, 6, 6}, { 1, 6, 6}, { 1, 6, 6},
334  { 5, 1, 6}, { 5, 1, 6}, { 5, 1, 6}, { 5, 1, 6},
335  { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6}, { 6, 1, 6},
336  { 2, 5, 8}, { 12, 1, 8}, { 1,11, 8}, { 1,10, 8},
337  { 14, 1, 8}, { 13, 1, 8}, { 4, 2, 8}, { 2, 4, 8},
338  { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5},
339  { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5}, { 3, 1, 5},
340  { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5},
341  { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5}, { 2, 2, 5},
342  { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5},
343  { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5}, { 4, 1, 5},
344  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
345  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
346  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
347  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
348  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
349  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
350  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
351  { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3}, { 2, 1, 3},
352  {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
353  {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
354  {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
355  {129, 0, 4}, {129, 0, 4}, {129, 0, 4}, {129, 0, 4},
356  { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
357  { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
358  { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
359  { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4}, { 1, 3, 4},
360  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
361  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
362  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
363  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
364  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
365  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
366  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
367  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
368  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
369  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
370  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
371  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
372  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
373  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
374  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
375  { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2}, { 1, 1, 2},
376  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
377  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
378  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
379  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
380  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
381  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
382  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
383  { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3}, { 1, 2, 3},
384  { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5},
385  { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5}, { 1, 4, 5},
386  { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5},
387  { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5}, { 1, 5, 5},
388  { 10, 1, 7}, { 10, 1, 7}, { 2, 3, 7}, { 2, 3, 7},
389  { 11, 1, 7}, { 11, 1, 7}, { 1, 8, 7}, { 1, 8, 7},
390  { 1, 9, 7}, { 1, 9, 7}, { 1,12, 8}, { 1,13, 8},
391  { 3, 3, 8}, { 5, 2, 8}, { 1,14, 8}, { 1,15, 8}
392 };
393 
394 
395 static const MBAtab MBA_5 [] = {
396  {6, 5}, {5, 5}, {4, 4}, {4, 4}, {3, 4}, {3, 4},
397  {2, 3}, {2, 3}, {2, 3}, {2, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3},
398  {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1},
399  {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}, {0, 1}
400 };
401 
402 static const MBAtab MBA_11 [] = {
403  {32, 11}, {31, 11}, {30, 11}, {29, 11},
404  {28, 11}, {27, 11}, {26, 11}, {25, 11},
405  {24, 11}, {23, 11}, {22, 11}, {21, 11},
406  {20, 10}, {20, 10}, {19, 10}, {19, 10},
407  {18, 10}, {18, 10}, {17, 10}, {17, 10},
408  {16, 10}, {16, 10}, {15, 10}, {15, 10},
409  {14, 8}, {14, 8}, {14, 8}, {14, 8},
410  {14, 8}, {14, 8}, {14, 8}, {14, 8},
411  {13, 8}, {13, 8}, {13, 8}, {13, 8},
412  {13, 8}, {13, 8}, {13, 8}, {13, 8},
413  {12, 8}, {12, 8}, {12, 8}, {12, 8},
414  {12, 8}, {12, 8}, {12, 8}, {12, 8},
415  {11, 8}, {11, 8}, {11, 8}, {11, 8},
416  {11, 8}, {11, 8}, {11, 8}, {11, 8},
417  {10, 8}, {10, 8}, {10, 8}, {10, 8},
418  {10, 8}, {10, 8}, {10, 8}, {10, 8},
419  { 9, 8}, { 9, 8}, { 9, 8}, { 9, 8},
420  { 9, 8}, { 9, 8}, { 9, 8}, { 9, 8},
421  { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
422  { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
423  { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
424  { 8, 7}, { 8, 7}, { 8, 7}, { 8, 7},
425  { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
426  { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
427  { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7},
428  { 7, 7}, { 7, 7}, { 7, 7}, { 7, 7}
429 };
MB_B
static const MBtab MB_B[]
Definition: vlc.h:123
DC_lum_5
static const DCtab DC_lum_5[]
Definition: vlc.h:223
MBtab
Definition: vlc.h:60
CBPtab
Definition: vlc.h:75
FWD
#define FWD
Definition: vlc.h:119
DCT_B14AC_5
static const DCTtab DCT_B14AC_5[]
Definition: vlc.h:303
CBP_9
static const CBPtab CBP_9[]
Definition: vlc.h:203
MV_4
static const MVtab MV_4[]
Definition: vlc.h:153
mpeg2_decoder_s
Definition: mpeg2_internal.h:64
mpeg2_decoder_s::bitstream_ptr
const uint8_t * bitstream_ptr
Definition: mpeg2_internal.h:71
DCTtab
Definition: vlc.h:85
QUANT
#define QUANT
Definition: vlc.h:99
MV_10
static const MVtab MV_10[]
Definition: vlc.h:157
MBAtab
Definition: vlc.h:91
CBP_7
static const CBPtab CBP_7[]
Definition: vlc.h:172
DCtab
Definition: vlc.h:80
MVtab
Definition: vlc.h:65
MBA_11
static const MBAtab MBA_11[]
Definition: vlc.h:402
bitstream_init
static void bitstream_init(mpeg2_decoder_t *decoder, const uint8_t *start)
Definition: vlc.h:30
DC_long
static const DCtab DC_long[]
Definition: vlc.h:237
DCT_16
static const DCTtab DCT_16[]
Definition: vlc.h:245
DC_chrom_5
static const DCtab DC_chrom_5[]
Definition: vlc.h:230
BWD
#define BWD
Definition: vlc.h:120
DMVtab
Definition: vlc.h:70
DMV_2
static const DMVtab DMV_2[]
Definition: vlc.h:167
MBA_5
static const MBAtab MBA_5[]
Definition: vlc.h:395
DCT_B15_8
static const DCTtab DCT_B15_8[]
Definition: vlc.h:328
DCT_B14_8
static const DCTtab DCT_B14_8[]
Definition: vlc.h:291
CODED
#define CODED
Definition: vlc.h:106
DCT_B14DC_5
static const DCTtab DCT_B14DC_5[]
Definition: vlc.h:313
mpeg2_decoder_s::bitstream_bits
int bitstream_bits
Definition: mpeg2_internal.h:70
DCT_15
static const DCTtab DCT_15[]
Definition: vlc.h:256
MC
#define MC
Definition: vlc.h:105
MB_I
static const MBtab MB_I[]
Definition: vlc.h:101
DCT_13
static const DCTtab DCT_13[]
Definition: vlc.h:271
DCT_B14_10
static const DCTtab DCT_B14_10[]
Definition: vlc.h:286
mpeg2_decoder_s::bitstream_buf
uint32_t bitstream_buf
Definition: mpeg2_internal.h:69
INTRA
#define INTRA
Definition: vlc.h:98
MB_P
static const MBtab MB_P[]
Definition: vlc.h:108
DCT_B15_10
static const DCTtab DCT_B15_10[]
Definition: vlc.h:323
INTER
#define INTER
Definition: vlc.h:121