1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003-2011 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Fiona Glaser <fiona@x264.com>
9 * This program 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.
14 * This program 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.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
23 * This program is also available under a commercial proprietary license.
24 * For more information, contact us at licensing@x264.com.
25 *****************************************************************************/
29 const vlc_t x264_coeff0_token[5] =
31 { 0x1, 1 }, /* str=1 */
32 { 0x3, 2 }, /* str=11 */
33 { 0xf, 4 }, /* str=1111 */
34 { 0x3, 6 }, /* str=000011 */
35 { 0x1, 2 }, /* str=01 */
38 const vlc_t x264_coeff_token[5][16][4] =
42 { 0x5, 6 }, /* str=000101 */
43 { 0x1, 2 }, /* str=01 */
46 { 0x7, 8 }, /* str=00000111 */
47 { 0x4, 6 }, /* str=000100 */
48 { 0x1, 3 }, /* str=001 */
51 { 0x7, 9 }, /* str=000000111 */
52 { 0x6, 8 }, /* str=00000110 */
53 { 0x5, 7 }, /* str=0000101 */
54 { 0x3, 5 }, /* str=00011 */
57 { 0x7, 10 }, /* str=0000000111 */
58 { 0x6, 9 }, /* str=000000110 */
59 { 0x5, 8 }, /* str=00000101 */
60 { 0x3, 6 }, /* str=000011 */
63 { 0x7, 11 }, /* str=00000000111 */
64 { 0x6, 10 }, /* str=0000000110 */
65 { 0x5, 9 }, /* str=000000101 */
66 { 0x4, 7 }, /* str=0000100 */
69 { 0xf, 13 }, /* str=0000000001111 */
70 { 0x6, 11 }, /* str=00000000110 */
71 { 0x5, 10 }, /* str=0000000101 */
72 { 0x4, 8 }, /* str=00000100 */
75 { 0xb, 13 }, /* str=0000000001011 */
76 { 0xe, 13 }, /* str=0000000001110 */
77 { 0x5, 11 }, /* str=00000000101 */
78 { 0x4, 9 }, /* str=000000100 */
81 { 0x8, 13 }, /* str=0000000001000 */
82 { 0xa, 13 }, /* str=0000000001010 */
83 { 0xd, 13 }, /* str=0000000001101 */
84 { 0x4, 10 }, /* str=0000000100 */
87 { 0xf, 14 }, /* str=00000000001111 */
88 { 0xe, 14 }, /* str=00000000001110 */
89 { 0x9, 13 }, /* str=0000000001001 */
90 { 0x4, 11 }, /* str=00000000100 */
93 { 0xb, 14 }, /* str=00000000001011 */
94 { 0xa, 14 }, /* str=00000000001010 */
95 { 0xd, 14 }, /* str=00000000001101 */
96 { 0xc, 13 }, /* str=0000000001100 */
99 { 0xf, 15 }, /* str=000000000001111 */
100 { 0xe, 15 }, /* str=000000000001110 */
101 { 0x9, 14 }, /* str=00000000001001 */
102 { 0xc, 14 }, /* str=00000000001100 */
105 { 0xb, 15 }, /* str=000000000001011 */
106 { 0xa, 15 }, /* str=000000000001010 */
107 { 0xd, 15 }, /* str=000000000001101 */
108 { 0x8, 14 }, /* str=00000000001000 */
111 { 0xf, 16 }, /* str=0000000000001111 */
112 { 0x1, 15 }, /* str=000000000000001 */
113 { 0x9, 15 }, /* str=000000000001001 */
114 { 0xc, 15 }, /* str=000000000001100 */
117 { 0xb, 16 }, /* str=0000000000001011 */
118 { 0xe, 16 }, /* str=0000000000001110 */
119 { 0xd, 16 }, /* str=0000000000001101 */
120 { 0x8, 15 }, /* str=000000000001000 */
123 { 0x7, 16 }, /* str=0000000000000111 */
124 { 0xa, 16 }, /* str=0000000000001010 */
125 { 0x9, 16 }, /* str=0000000000001001 */
126 { 0xc, 16 }, /* str=0000000000001100 */
129 { 0x4, 16 }, /* str=0000000000000100 */
130 { 0x6, 16 }, /* str=0000000000000110 */
131 { 0x5, 16 }, /* str=0000000000000101 */
132 { 0x8, 16 }, /* str=0000000000001000 */
137 { 0xb, 6 }, /* str=001011 */
138 { 0x2, 2 }, /* str=10 */
141 { 0x7, 6 }, /* str=000111 */
142 { 0x7, 5 }, /* str=00111 */
143 { 0x3, 3 }, /* str=011 */
146 { 0x7, 7 }, /* str=0000111 */
147 { 0xa, 6 }, /* str=001010 */
148 { 0x9, 6 }, /* str=001001 */
149 { 0x5, 4 }, /* str=0101 */
152 { 0x7, 8 }, /* str=00000111 */
153 { 0x6, 6 }, /* str=000110 */
154 { 0x5, 6 }, /* str=000101 */
155 { 0x4, 4 }, /* str=0100 */
158 { 0x4, 8 }, /* str=00000100 */
159 { 0x6, 7 }, /* str=0000110 */
160 { 0x5, 7 }, /* str=0000101 */
161 { 0x6, 5 }, /* str=00110 */
164 { 0x7, 9 }, /* str=000000111 */
165 { 0x6, 8 }, /* str=00000110 */
166 { 0x5, 8 }, /* str=00000101 */
167 { 0x8, 6 }, /* str=001000 */
170 { 0xf, 11 }, /* str=00000001111 */
171 { 0x6, 9 }, /* str=000000110 */
172 { 0x5, 9 }, /* str=000000101 */
173 { 0x4, 6 }, /* str=000100 */
176 { 0xb, 11 }, /* str=00000001011 */
177 { 0xe, 11 }, /* str=00000001110 */
178 { 0xd, 11 }, /* str=00000001101 */
179 { 0x4, 7 }, /* str=0000100 */
182 { 0xf, 12 }, /* str=000000001111 */
183 { 0xa, 11 }, /* str=00000001010 */
184 { 0x9, 11 }, /* str=00000001001 */
185 { 0x4, 9 }, /* str=000000100 */
188 { 0xb, 12 }, /* str=000000001011 */
189 { 0xe, 12 }, /* str=000000001110 */
190 { 0xd, 12 }, /* str=000000001101 */
191 { 0xc, 11 }, /* str=00000001100 */
194 { 0x8, 12 }, /* str=000000001000 */
195 { 0xa, 12 }, /* str=000000001010 */
196 { 0x9, 12 }, /* str=000000001001 */
197 { 0x8, 11 }, /* str=00000001000 */
200 { 0xf, 13 }, /* str=0000000001111 */
201 { 0xe, 13 }, /* str=0000000001110 */
202 { 0xd, 13 }, /* str=0000000001101 */
203 { 0xc, 12 }, /* str=000000001100 */
206 { 0xb, 13 }, /* str=0000000001011 */
207 { 0xa, 13 }, /* str=0000000001010 */
208 { 0x9, 13 }, /* str=0000000001001 */
209 { 0xc, 13 }, /* str=0000000001100 */
212 { 0x7, 13 }, /* str=0000000000111 */
213 { 0xb, 14 }, /* str=00000000001011 */
214 { 0x6, 13 }, /* str=0000000000110 */
215 { 0x8, 13 }, /* str=0000000001000 */
218 { 0x9, 14 }, /* str=00000000001001 */
219 { 0x8, 14 }, /* str=00000000001000 */
220 { 0xa, 14 }, /* str=00000000001010 */
221 { 0x1, 13 }, /* str=0000000000001 */
224 { 0x7, 14 }, /* str=00000000000111 */
225 { 0x6, 14 }, /* str=00000000000110 */
226 { 0x5, 14 }, /* str=00000000000101 */
227 { 0x4, 14 }, /* str=00000000000100 */
232 { 0xf, 6 }, /* str=001111 */
233 { 0xe, 4 }, /* str=1110 */
236 { 0xb, 6 }, /* str=001011 */
237 { 0xf, 5 }, /* str=01111 */
238 { 0xd, 4 }, /* str=1101 */
241 { 0x8, 6 }, /* str=001000 */
242 { 0xc, 5 }, /* str=01100 */
243 { 0xe, 5 }, /* str=01110 */
244 { 0xc, 4 }, /* str=1100 */
247 { 0xf, 7 }, /* str=0001111 */
248 { 0xa, 5 }, /* str=01010 */
249 { 0xb, 5 }, /* str=01011 */
250 { 0xb, 4 }, /* str=1011 */
253 { 0xb, 7 }, /* str=0001011 */
254 { 0x8, 5 }, /* str=01000 */
255 { 0x9, 5 }, /* str=01001 */
256 { 0xa, 4 }, /* str=1010 */
259 { 0x9, 7 }, /* str=0001001 */
260 { 0xe, 6 }, /* str=001110 */
261 { 0xd, 6 }, /* str=001101 */
262 { 0x9, 4 }, /* str=1001 */
265 { 0x8, 7 }, /* str=0001000 */
266 { 0xa, 6 }, /* str=001010 */
267 { 0x9, 6 }, /* str=001001 */
268 { 0x8, 4 }, /* str=1000 */
271 { 0xf, 8 }, /* str=00001111 */
272 { 0xe, 7 }, /* str=0001110 */
273 { 0xd, 7 }, /* str=0001101 */
274 { 0xd, 5 }, /* str=01101 */
277 { 0xb, 8 }, /* str=00001011 */
278 { 0xe, 8 }, /* str=00001110 */
279 { 0xa, 7 }, /* str=0001010 */
280 { 0xc, 6 }, /* str=001100 */
283 { 0xf, 9 }, /* str=000001111 */
284 { 0xa, 8 }, /* str=00001010 */
285 { 0xd, 8 }, /* str=00001101 */
286 { 0xc, 7 }, /* str=0001100 */
289 { 0xb, 9 }, /* str=000001011 */
290 { 0xe, 9 }, /* str=000001110 */
291 { 0x9, 8 }, /* str=00001001 */
292 { 0xc, 8 }, /* str=00001100 */
295 { 0x8, 9 }, /* str=000001000 */
296 { 0xa, 9 }, /* str=000001010 */
297 { 0xd, 9 }, /* str=000001101 */
298 { 0x8, 8 }, /* str=00001000 */
301 { 0xd, 10 }, /* str=0000001101 */
302 { 0x7, 9 }, /* str=000000111 */
303 { 0x9, 9 }, /* str=000001001 */
304 { 0xc, 9 }, /* str=000001100 */
307 { 0x9, 10 }, /* str=0000001001 */
308 { 0xc, 10 }, /* str=0000001100 */
309 { 0xb, 10 }, /* str=0000001011 */
310 { 0xa, 10 }, /* str=0000001010 */
313 { 0x5, 10 }, /* str=0000000101 */
314 { 0x8, 10 }, /* str=0000001000 */
315 { 0x7, 10 }, /* str=0000000111 */
316 { 0x6, 10 }, /* str=0000000110 */
319 { 0x1, 10 }, /* str=0000000001 */
320 { 0x4, 10 }, /* str=0000000100 */
321 { 0x3, 10 }, /* str=0000000011 */
322 { 0x2, 10 }, /* str=0000000010 */
327 { 0x0, 6 }, /* str=000000 */
328 { 0x1, 6 }, /* str=000001 */
331 { 0x4, 6 }, /* str=000100 */
332 { 0x5, 6 }, /* str=000101 */
333 { 0x6, 6 }, /* str=000110 */
336 { 0x8, 6 }, /* str=001000 */
337 { 0x9, 6 }, /* str=001001 */
338 { 0xa, 6 }, /* str=001010 */
339 { 0xb, 6 }, /* str=001011 */
342 { 0xc, 6 }, /* str=001100 */
343 { 0xd, 6 }, /* str=001101 */
344 { 0xe, 6 }, /* str=001110 */
345 { 0xf, 6 }, /* str=001111 */
348 { 0x10, 6 }, /* str=010000 */
349 { 0x11, 6 }, /* str=010001 */
350 { 0x12, 6 }, /* str=010010 */
351 { 0x13, 6 }, /* str=010011 */
354 { 0x14, 6 }, /* str=010100 */
355 { 0x15, 6 }, /* str=010101 */
356 { 0x16, 6 }, /* str=010110 */
357 { 0x17, 6 }, /* str=010111 */
360 { 0x18, 6 }, /* str=011000 */
361 { 0x19, 6 }, /* str=011001 */
362 { 0x1a, 6 }, /* str=011010 */
363 { 0x1b, 6 }, /* str=011011 */
366 { 0x1c, 6 }, /* str=011100 */
367 { 0x1d, 6 }, /* str=011101 */
368 { 0x1e, 6 }, /* str=011110 */
369 { 0x1f, 6 }, /* str=011111 */
372 { 0x20, 6 }, /* str=100000 */
373 { 0x21, 6 }, /* str=100001 */
374 { 0x22, 6 }, /* str=100010 */
375 { 0x23, 6 }, /* str=100011 */
378 { 0x24, 6 }, /* str=100100 */
379 { 0x25, 6 }, /* str=100101 */
380 { 0x26, 6 }, /* str=100110 */
381 { 0x27, 6 }, /* str=100111 */
384 { 0x28, 6 }, /* str=101000 */
385 { 0x29, 6 }, /* str=101001 */
386 { 0x2a, 6 }, /* str=101010 */
387 { 0x2b, 6 }, /* str=101011 */
390 { 0x2c, 6 }, /* str=101100 */
391 { 0x2d, 6 }, /* str=101101 */
392 { 0x2e, 6 }, /* str=101110 */
393 { 0x2f, 6 }, /* str=101111 */
396 { 0x30, 6 }, /* str=110000 */
397 { 0x31, 6 }, /* str=110001 */
398 { 0x32, 6 }, /* str=110010 */
399 { 0x33, 6 }, /* str=110011 */
402 { 0x34, 6 }, /* str=110100 */
403 { 0x35, 6 }, /* str=110101 */
404 { 0x36, 6 }, /* str=110110 */
405 { 0x37, 6 }, /* str=110111 */
408 { 0x38, 6 }, /* str=111000 */
409 { 0x39, 6 }, /* str=111001 */
410 { 0x3a, 6 }, /* str=111010 */
411 { 0x3b, 6 }, /* str=111011 */
414 { 0x3c, 6 }, /* str=111100 */
415 { 0x3d, 6 }, /* str=111101 */
416 { 0x3e, 6 }, /* str=111110 */
417 { 0x3f, 6 }, /* str=111111 */
422 { 0x7, 6 }, /* str=000111 */
423 { 0x1, 1 }, /* str=1 */
426 { 0x4, 6 }, /* str=000100 */
427 { 0x6, 6 }, /* str=000110 */
428 { 0x1, 3 }, /* str=001 */
431 { 0x3, 6 }, /* str=000011 */
432 { 0x3, 7 }, /* str=0000011 */
433 { 0x2, 7 }, /* str=0000010 */
434 { 0x5, 6 }, /* str=000101 */
437 { 0x2, 6 }, /* str=000010 */
438 { 0x3, 8 }, /* str=00000011 */
439 { 0x2, 8 }, /* str=00000010 */
440 { 0x0, 7 }, /* str=0000000 */
445 /* [i_total_coeff-1][i_total_zeros] */
446 const vlc_t x264_total_zeros[15][16] =
449 { 0x1, 1 }, /* str=1 */
450 { 0x3, 3 }, /* str=011 */
451 { 0x2, 3 }, /* str=010 */
452 { 0x3, 4 }, /* str=0011 */
453 { 0x2, 4 }, /* str=0010 */
454 { 0x3, 5 }, /* str=00011 */
455 { 0x2, 5 }, /* str=00010 */
456 { 0x3, 6 }, /* str=000011 */
457 { 0x2, 6 }, /* str=000010 */
458 { 0x3, 7 }, /* str=0000011 */
459 { 0x2, 7 }, /* str=0000010 */
460 { 0x3, 8 }, /* str=00000011 */
461 { 0x2, 8 }, /* str=00000010 */
462 { 0x3, 9 }, /* str=000000011 */
463 { 0x2, 9 }, /* str=000000010 */
464 { 0x1, 9 }, /* str=000000001 */
467 { 0x7, 3 }, /* str=111 */
468 { 0x6, 3 }, /* str=110 */
469 { 0x5, 3 }, /* str=101 */
470 { 0x4, 3 }, /* str=100 */
471 { 0x3, 3 }, /* str=011 */
472 { 0x5, 4 }, /* str=0101 */
473 { 0x4, 4 }, /* str=0100 */
474 { 0x3, 4 }, /* str=0011 */
475 { 0x2, 4 }, /* str=0010 */
476 { 0x3, 5 }, /* str=00011 */
477 { 0x2, 5 }, /* str=00010 */
478 { 0x3, 6 }, /* str=000011 */
479 { 0x2, 6 }, /* str=000010 */
480 { 0x1, 6 }, /* str=000001 */
481 { 0x0, 6 }, /* str=000000 */
484 { 0x5, 4 }, /* str=0101 */
485 { 0x7, 3 }, /* str=111 */
486 { 0x6, 3 }, /* str=110 */
487 { 0x5, 3 }, /* str=101 */
488 { 0x4, 4 }, /* str=0100 */
489 { 0x3, 4 }, /* str=0011 */
490 { 0x4, 3 }, /* str=100 */
491 { 0x3, 3 }, /* str=011 */
492 { 0x2, 4 }, /* str=0010 */
493 { 0x3, 5 }, /* str=00011 */
494 { 0x2, 5 }, /* str=00010 */
495 { 0x1, 6 }, /* str=000001 */
496 { 0x1, 5 }, /* str=00001 */
497 { 0x0, 6 }, /* str=000000 */
500 { 0x3, 5 }, /* str=00011 */
501 { 0x7, 3 }, /* str=111 */
502 { 0x5, 4 }, /* str=0101 */
503 { 0x4, 4 }, /* str=0100 */
504 { 0x6, 3 }, /* str=110 */
505 { 0x5, 3 }, /* str=101 */
506 { 0x4, 3 }, /* str=100 */
507 { 0x3, 4 }, /* str=0011 */
508 { 0x3, 3 }, /* str=011 */
509 { 0x2, 4 }, /* str=0010 */
510 { 0x2, 5 }, /* str=00010 */
511 { 0x1, 5 }, /* str=00001 */
512 { 0x0, 5 }, /* str=00000 */
515 { 0x5, 4 }, /* str=0101 */
516 { 0x4, 4 }, /* str=0100 */
517 { 0x3, 4 }, /* str=0011 */
518 { 0x7, 3 }, /* str=111 */
519 { 0x6, 3 }, /* str=110 */
520 { 0x5, 3 }, /* str=101 */
521 { 0x4, 3 }, /* str=100 */
522 { 0x3, 3 }, /* str=011 */
523 { 0x2, 4 }, /* str=0010 */
524 { 0x1, 5 }, /* str=00001 */
525 { 0x1, 4 }, /* str=0001 */
526 { 0x0, 5 }, /* str=00000 */
529 { 0x1, 6 }, /* str=000001 */
530 { 0x1, 5 }, /* str=00001 */
531 { 0x7, 3 }, /* str=111 */
532 { 0x6, 3 }, /* str=110 */
533 { 0x5, 3 }, /* str=101 */
534 { 0x4, 3 }, /* str=100 */
535 { 0x3, 3 }, /* str=011 */
536 { 0x2, 3 }, /* str=010 */
537 { 0x1, 4 }, /* str=0001 */
538 { 0x1, 3 }, /* str=001 */
539 { 0x0, 6 }, /* str=000000 */
542 { 0x1, 6 }, /* str=000001 */
543 { 0x1, 5 }, /* str=00001 */
544 { 0x5, 3 }, /* str=101 */
545 { 0x4, 3 }, /* str=100 */
546 { 0x3, 3 }, /* str=011 */
547 { 0x3, 2 }, /* str=11 */
548 { 0x2, 3 }, /* str=010 */
549 { 0x1, 4 }, /* str=0001 */
550 { 0x1, 3 }, /* str=001 */
551 { 0x0, 6 }, /* str=000000 */
554 { 0x1, 6 }, /* str=000001 */
555 { 0x1, 4 }, /* str=0001 */
556 { 0x1, 5 }, /* str=00001 */
557 { 0x3, 3 }, /* str=011 */
558 { 0x3, 2 }, /* str=11 */
559 { 0x2, 2 }, /* str=10 */
560 { 0x2, 3 }, /* str=010 */
561 { 0x1, 3 }, /* str=001 */
562 { 0x0, 6 }, /* str=000000 */
565 { 0x1, 6 }, /* str=000001 */
566 { 0x0, 6 }, /* str=000000 */
567 { 0x1, 4 }, /* str=0001 */
568 { 0x3, 2 }, /* str=11 */
569 { 0x2, 2 }, /* str=10 */
570 { 0x1, 3 }, /* str=001 */
571 { 0x1, 2 }, /* str=01 */
572 { 0x1, 5 }, /* str=00001 */
575 { 0x1, 5 }, /* str=00001 */
576 { 0x0, 5 }, /* str=00000 */
577 { 0x1, 3 }, /* str=001 */
578 { 0x3, 2 }, /* str=11 */
579 { 0x2, 2 }, /* str=10 */
580 { 0x1, 2 }, /* str=01 */
581 { 0x1, 4 }, /* str=0001 */
584 { 0x0, 4 }, /* str=0000 */
585 { 0x1, 4 }, /* str=0001 */
586 { 0x1, 3 }, /* str=001 */
587 { 0x2, 3 }, /* str=010 */
588 { 0x1, 1 }, /* str=1 */
589 { 0x3, 3 }, /* str=011 */
592 { 0x0, 4 }, /* str=0000 */
593 { 0x1, 4 }, /* str=0001 */
594 { 0x1, 2 }, /* str=01 */
595 { 0x1, 1 }, /* str=1 */
596 { 0x1, 3 }, /* str=001 */
599 { 0x0, 3 }, /* str=000 */
600 { 0x1, 3 }, /* str=001 */
601 { 0x1, 1 }, /* str=1 */
602 { 0x1, 2 }, /* str=01 */
605 { 0x0, 2 }, /* str=00 */
606 { 0x1, 2 }, /* str=01 */
607 { 0x1, 1 }, /* str=1 */
610 { 0x0, 1 }, /* str=0 */
611 { 0x1, 1 }, /* str=1 */
615 /* [i_total_coeff-1][i_total_zeros] */
616 const vlc_t x264_total_zeros_dc[3][4] =
619 { 0x1, 1 }, /* str=1 */
620 { 0x1, 2 }, /* str=01 */
621 { 0x1, 3 }, /* str=001 */
622 { 0x0, 3 } /* str=000 */
625 { 0x1, 1 }, /* str=1 */
626 { 0x1, 2 }, /* str=01 */
627 { 0x0, 2 }, /* str=00 */
630 { 0x1, 1 }, /* str=1 */
631 { 0x0, 1 }, /* str=0 */
635 /* x264_run_before[__MIN( i_zero_left -1, 6 )][run_before] */
636 const vlc_t x264_run_before[7][16] =
638 { /* i_zero_left 1 */
639 { 0x1, 1 }, /* str=1 */
640 { 0x0, 1 }, /* str=0 */
642 { /* i_zero_left 2 */
643 { 0x1, 1 }, /* str=1 */
644 { 0x1, 2 }, /* str=01 */
645 { 0x0, 2 }, /* str=00 */
647 { /* i_zero_left 3 */
648 { 0x3, 2 }, /* str=11 */
649 { 0x2, 2 }, /* str=10 */
650 { 0x1, 2 }, /* str=01 */
651 { 0x0, 2 }, /* str=00 */
653 { /* i_zero_left 4 */
654 { 0x3, 2 }, /* str=11 */
655 { 0x2, 2 }, /* str=10 */
656 { 0x1, 2 }, /* str=01 */
657 { 0x1, 3 }, /* str=001 */
658 { 0x0, 3 }, /* str=000 */
660 { /* i_zero_left 5 */
661 { 0x3, 2 }, /* str=11 */
662 { 0x2, 2 }, /* str=10 */
663 { 0x3, 3 }, /* str=011 */
664 { 0x2, 3 }, /* str=010 */
665 { 0x1, 3 }, /* str=001 */
666 { 0x0, 3 }, /* str=000 */
668 { /* i_zero_left 6 */
669 { 0x3, 2 }, /* str=11 */
670 { 0x0, 3 }, /* str=000 */
671 { 0x1, 3 }, /* str=001 */
672 { 0x3, 3 }, /* str=011 */
673 { 0x2, 3 }, /* str=010 */
674 { 0x5, 3 }, /* str=101 */
675 { 0x4, 3 }, /* str=100 */
677 { /* i_zero_left 7 */
678 { 0x7, 3 }, /* str=111 */
679 { 0x6, 3 }, /* str=110 */
680 { 0x5, 3 }, /* str=101 */
681 { 0x4, 3 }, /* str=100 */
682 { 0x3, 3 }, /* str=011 */
683 { 0x2, 3 }, /* str=010 */
684 { 0x1, 3 }, /* str=001 */
685 { 0x1, 4 }, /* str=0001 */
686 { 0x1, 5 }, /* str=00001 */
687 { 0x1, 6 }, /* str=000001 */
688 { 0x1, 7 }, /* str=0000001 */
689 { 0x1, 8 }, /* str=00000001 */
690 { 0x1, 9 }, /* str=000000001 */
691 { 0x1, 10 }, /* str=0000000001 */
692 { 0x1, 11 }, /* str=00000000001 */
696 vlc_large_t x264_level_token[7][LEVEL_TABLE_SIZE];
698 void x264_cavlc_init( void )
700 for( int i_suffix = 0; i_suffix < 7; i_suffix++ )
701 for( int16_t level = -LEVEL_TABLE_SIZE/2; level < LEVEL_TABLE_SIZE/2; level++ )
703 int mask = level >> 15;
704 int abs_level = (level^mask)-mask;
705 int i_level_code = abs_level*2-mask-2;
706 int i_next = i_suffix;
707 vlc_large_t *vlc = &x264_level_token[i_suffix][level+LEVEL_TABLE_SIZE/2];
709 if( ( i_level_code >> i_suffix ) < 14 )
711 vlc->i_size = (i_level_code >> i_suffix) + 1 + i_suffix;
712 vlc->i_bits = (1<<i_suffix) + (i_level_code & ((1<<i_suffix)-1));
714 else if( i_suffix == 0 && i_level_code < 30 )
717 vlc->i_bits = (1<<4) + (i_level_code - 14);
719 else if( i_suffix > 0 && ( i_level_code >> i_suffix ) == 14 )
721 vlc->i_size = 15 + i_suffix;
722 vlc->i_bits = (1<<i_suffix) + (i_level_code & ((1<<i_suffix)-1));
726 i_level_code -= 15 << i_suffix;
730 vlc->i_bits = (1<<12) + i_level_code;
734 if( abs_level > (3 << (i_next-1)) && i_next < 6 )
736 vlc->i_next = i_next;