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Revision 1.52 - (view) (download)
1 : | edgomez | 1.46 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - MB coding - | ||
5 : | * | ||
6 : | * Copyright (C) 2002 Michael Militzer <isibaar@xvid.org> | ||
7 : | * | ||
8 : | * This program is free software ; you can redistribute it and/or modify | ||
9 : | * it under the terms of the GNU General Public License as published by | ||
10 : | * the Free Software Foundation ; either version 2 of the License, or | ||
11 : | * (at your option) any later version. | ||
12 : | * | ||
13 : | * This program 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 | ||
16 : | * GNU General Public License for more details. | ||
17 : | * | ||
18 : | * You should have received a copy of the GNU General Public License | ||
19 : | * along with this program ; if not, write to the Free Software | ||
20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 : | * | ||
22 : | edgomez | 1.51 | * $Id$ |
23 : | edgomez | 1.46 | * |
24 : | ****************************************************************************/ | ||
25 : | edgomez | 1.42 | |
26 : | #include <stdio.h> | ||
27 : | Isibaar | 1.8 | #include <stdlib.h> |
28 : | edgomez | 1.46 | #include <string.h> |
29 : | |||
30 : | Isibaar | 1.1 | #include "../portab.h" |
31 : | edgomez | 1.42 | #include "../global.h" |
32 : | Isibaar | 1.1 | #include "bitstream.h" |
33 : | #include "zigzag.h" | ||
34 : | #include "vlc_codes.h" | ||
35 : | Isibaar | 1.8 | #include "mbcoding.h" |
36 : | Isibaar | 1.1 | |
37 : | #include "../utils/mbfunctions.h" | ||
38 : | |||
39 : | edgomez | 1.37 | #define LEVELOFFSET 32 |
40 : | |||
41 : | edgomez | 1.48 | /* Initialized once during xvid_global call |
42 : | * RO access is thread safe */ | ||
43 : | edgomez | 1.37 | static REVERSE_EVENT DCT3D[2][4096]; |
44 : | static VLC coeff_VLC[2][2][64][64]; | ||
45 : | edgomez | 1.26 | |
46 : | edgomez | 1.42 | /* not really MB related, but VLCs are only available here */ |
47 : | void bs_put_spritetrajectory(Bitstream * bs, const int val) | ||
48 : | { | ||
49 : | const int code = sprite_trajectory_code[val+16384].code; | ||
50 : | const int len = sprite_trajectory_code[val+16384].len; | ||
51 : | const int code2 = sprite_trajectory_len[len].code; | ||
52 : | const int len2 = sprite_trajectory_len[len].len; | ||
53 : | |||
54 : | edgomez | 1.46 | #if 0 |
55 : | printf("GMC=%d Code/Len = %d / %d ",val, code,len); | ||
56 : | printf("Code2 / Len2 = %d / %d \n",code2,len2); | ||
57 : | #endif | ||
58 : | edgomez | 1.42 | |
59 : | BitstreamPutBits(bs, code2, len2); | ||
60 : | if (len) BitstreamPutBits(bs, code, len); | ||
61 : | } | ||
62 : | |||
63 : | int bs_get_spritetrajectory(Bitstream * bs) | ||
64 : | { | ||
65 : | int i; | ||
66 : | for (i = 0; i < 12; i++) | ||
67 : | { | ||
68 : | if (BitstreamShowBits(bs, sprite_trajectory_len[i].len) == sprite_trajectory_len[i].code) | ||
69 : | { | ||
70 : | BitstreamSkip(bs, sprite_trajectory_len[i].len); | ||
71 : | return i; | ||
72 : | } | ||
73 : | } | ||
74 : | return -1; | ||
75 : | } | ||
76 : | Isibaar | 1.1 | |
77 : | edgomez | 1.17 | void |
78 : | init_vlc_tables(void) | ||
79 : | Isibaar | 1.1 | { |
80 : | edgomez | 1.42 | uint32_t i, j, k, intra, last, run, run_esc, level, level_esc, escape, escape_len, offset; |
81 : | int32_t l; | ||
82 : | edgomez | 1.38 | |
83 : | edgomez | 1.37 | for (intra = 0; intra < 2; intra++) |
84 : | for (i = 0; i < 4096; i++) | ||
85 : | DCT3D[intra][i].event.level = 0; | ||
86 : | |||
87 : | edgomez | 1.46 | for (intra = 0; intra < 2; intra++) { |
88 : | for (last = 0; last < 2; last++) { | ||
89 : | for (run = 0; run < 63 + last; run++) { | ||
90 : | for (level = 0; level < (uint32_t)(32 << intra); level++) { | ||
91 : | edgomez | 1.37 | offset = !intra * LEVELOFFSET; |
92 : | coeff_VLC[intra][last][level + offset][run].len = 128; | ||
93 : | Isibaar | 1.1 | } |
94 : | edgomez | 1.46 | } |
95 : | edgomez | 1.37 | } |
96 : | edgomez | 1.46 | } |
97 : | Isibaar | 1.8 | |
98 : | edgomez | 1.46 | for (intra = 0; intra < 2; intra++) { |
99 : | for (i = 0; i < 102; i++) { | ||
100 : | edgomez | 1.37 | offset = !intra * LEVELOFFSET; |
101 : | edgomez | 1.46 | |
102 : | for (j = 0; j < (uint32_t)(1 << (12 - coeff_tab[intra][i].vlc.len)); j++) { | ||
103 : | edgomez | 1.37 | DCT3D[intra][(coeff_tab[intra][i].vlc.code << (12 - coeff_tab[intra][i].vlc.len)) | j].len = coeff_tab[intra][i].vlc.len; |
104 : | DCT3D[intra][(coeff_tab[intra][i].vlc.code << (12 - coeff_tab[intra][i].vlc.len)) | j].event = coeff_tab[intra][i].event; | ||
105 : | } | ||
106 : | Isibaar | 1.8 | |
107 : | edgomez | 1.37 | coeff_VLC[intra][coeff_tab[intra][i].event.last][coeff_tab[intra][i].event.level + offset][coeff_tab[intra][i].event.run].code |
108 : | = coeff_tab[intra][i].vlc.code << 1; | ||
109 : | coeff_VLC[intra][coeff_tab[intra][i].event.last][coeff_tab[intra][i].event.level + offset][coeff_tab[intra][i].event.run].len | ||
110 : | = coeff_tab[intra][i].vlc.len + 1; | ||
111 : | edgomez | 1.46 | |
112 : | if (!intra) { | ||
113 : | edgomez | 1.37 | coeff_VLC[intra][coeff_tab[intra][i].event.last][offset - coeff_tab[intra][i].event.level][coeff_tab[intra][i].event.run].code |
114 : | = (coeff_tab[intra][i].vlc.code << 1) | 1; | ||
115 : | coeff_VLC[intra][coeff_tab[intra][i].event.last][offset - coeff_tab[intra][i].event.level][coeff_tab[intra][i].event.run].len | ||
116 : | = coeff_tab[intra][i].vlc.len + 1; | ||
117 : | Isibaar | 1.1 | } |
118 : | } | ||
119 : | edgomez | 1.46 | } |
120 : | |||
121 : | for (intra = 0; intra < 2; intra++) { | ||
122 : | for (last = 0; last < 2; last++) { | ||
123 : | for (run = 0; run < 63 + last; run++) { | ||
124 : | for (level = 1; level < (uint32_t)(32 << intra); level++) { | ||
125 : | Isibaar | 1.1 | |
126 : | edgomez | 1.38 | if (level <= max_level[intra][last][run] && run <= max_run[intra][last][level]) |
127 : | continue; | ||
128 : | |||
129 : | edgomez | 1.37 | offset = !intra * LEVELOFFSET; |
130 : | edgomez | 1.38 | level_esc = level - max_level[intra][last][run]; |
131 : | run_esc = run - 1 - max_run[intra][last][level]; | ||
132 : | |||
133 : | edgomez | 1.46 | if (level_esc <= max_level[intra][last][run] && run <= max_run[intra][last][level_esc]) { |
134 : | edgomez | 1.38 | escape = ESCAPE1; |
135 : | escape_len = 7 + 1; | ||
136 : | run_esc = run; | ||
137 : | edgomez | 1.46 | } else { |
138 : | if (run_esc <= max_run[intra][last][level] && level <= max_level[intra][last][run_esc]) { | ||
139 : | edgomez | 1.38 | escape = ESCAPE2; |
140 : | escape_len = 7 + 2; | ||
141 : | level_esc = level; | ||
142 : | edgomez | 1.46 | } else { |
143 : | if (!intra) { | ||
144 : | edgomez | 1.38 | coeff_VLC[intra][last][level + offset][run].code |
145 : | = (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((level & 0xfff) << 1) | 1; | ||
146 : | coeff_VLC[intra][last][level + offset][run].len = 30; | ||
147 : | coeff_VLC[intra][last][offset - level][run].code | ||
148 : | suxen_drol | 1.44 | = (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((-(int32_t)level & 0xfff) << 1) | 1; |
149 : | edgomez | 1.38 | coeff_VLC[intra][last][offset - level][run].len = 30; |
150 : | edgomez | 1.37 | } |
151 : | edgomez | 1.38 | continue; |
152 : | edgomez | 1.37 | } |
153 : | edgomez | 1.38 | } |
154 : | |||
155 : | coeff_VLC[intra][last][level + offset][run].code | ||
156 : | = (escape << coeff_VLC[intra][last][level_esc + offset][run_esc].len) | ||
157 : | | coeff_VLC[intra][last][level_esc + offset][run_esc].code; | ||
158 : | coeff_VLC[intra][last][level + offset][run].len | ||
159 : | = coeff_VLC[intra][last][level_esc + offset][run_esc].len + escape_len; | ||
160 : | edgomez | 1.46 | |
161 : | if (!intra) { | ||
162 : | edgomez | 1.38 | coeff_VLC[intra][last][offset - level][run].code |
163 : | = (escape << coeff_VLC[intra][last][level_esc + offset][run_esc].len) | ||
164 : | | coeff_VLC[intra][last][level_esc + offset][run_esc].code | 1; | ||
165 : | coeff_VLC[intra][last][offset - level][run].len | ||
166 : | = coeff_VLC[intra][last][level_esc + offset][run_esc].len + escape_len; | ||
167 : | } | ||
168 : | edgomez | 1.37 | } |
169 : | edgomez | 1.38 | |
170 : | edgomez | 1.46 | if (!intra) { |
171 : | edgomez | 1.37 | coeff_VLC[intra][last][0][run].code |
172 : | = (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((-32 & 0xfff) << 1) | 1; | ||
173 : | coeff_VLC[intra][last][0][run].len = 30; | ||
174 : | } | ||
175 : | } | ||
176 : | edgomez | 1.46 | } |
177 : | } | ||
178 : | |||
179 : | /* init sprite_trajectory tables | ||
180 : | * even if GMC is not specified (it might be used later...) */ | ||
181 : | edgomez | 1.41 | |
182 : | edgomez | 1.42 | sprite_trajectory_code[0+16384].code = 0; |
183 : | sprite_trajectory_code[0+16384].len = 0; | ||
184 : | edgomez | 1.46 | for (k=0;k<14;k++) { |
185 : | edgomez | 1.42 | int limit = (1<<k); |
186 : | edgomez | 1.41 | |
187 : | edgomez | 1.46 | for (l=-(2*limit-1); l <= -limit; l++) { |
188 : | edgomez | 1.42 | sprite_trajectory_code[l+16384].code = (2*limit-1)+l; |
189 : | sprite_trajectory_code[l+16384].len = k+1; | ||
190 : | } | ||
191 : | |||
192 : | edgomez | 1.46 | for (l=limit; l<= 2*limit-1; l++) { |
193 : | sprite_trajectory_code[l+16384].code = l; | ||
194 : | edgomez | 1.42 | sprite_trajectory_code[l+16384].len = k+1; |
195 : | } | ||
196 : | } | ||
197 : | Isibaar | 1.1 | } |
198 : | |||
199 : | edgomez | 1.17 | static __inline void |
200 : | CodeVector(Bitstream * bs, | ||
201 : | int32_t value, | ||
202 : | syskin | 1.49 | int32_t f_code) |
203 : | Isibaar | 1.1 | { |
204 : | edgomez | 1.7 | |
205 : | Isibaar | 1.1 | const int scale_factor = 1 << (f_code - 1); |
206 : | const int cmp = scale_factor << 5; | ||
207 : | |||
208 : | edgomez | 1.17 | if (value < (-1 * cmp)) |
209 : | Isibaar | 1.1 | value += 64 * scale_factor; |
210 : | edgomez | 1.17 | |
211 : | if (value > (cmp - 1)) | ||
212 : | Isibaar | 1.1 | value -= 64 * scale_factor; |
213 : | |||
214 : | edgomez | 1.7 | if (value == 0) { |
215 : | edgomez | 1.17 | BitstreamPutBits(bs, mb_motion_table[32].code, |
216 : | mb_motion_table[32].len); | ||
217 : | edgomez | 1.7 | } else { |
218 : | Isibaar | 1.1 | uint16_t length, code, mv_res, sign; |
219 : | edgomez | 1.17 | |
220 : | Isibaar | 1.1 | length = 16 << f_code; |
221 : | f_code--; | ||
222 : | edgomez | 1.17 | |
223 : | Isibaar | 1.1 | sign = (value < 0); |
224 : | |||
225 : | edgomez | 1.17 | if (value >= length) |
226 : | Isibaar | 1.1 | value -= 2 * length; |
227 : | edgomez | 1.17 | else if (value < -length) |
228 : | Isibaar | 1.1 | value += 2 * length; |
229 : | |||
230 : | edgomez | 1.17 | if (sign) |
231 : | Isibaar | 1.1 | value = -value; |
232 : | |||
233 : | value--; | ||
234 : | mv_res = value & ((1 << f_code) - 1); | ||
235 : | code = ((value - mv_res) >> f_code) + 1; | ||
236 : | |||
237 : | edgomez | 1.17 | if (sign) |
238 : | Isibaar | 1.1 | code = -code; |
239 : | |||
240 : | code += 32; | ||
241 : | edgomez | 1.17 | BitstreamPutBits(bs, mb_motion_table[code].code, |
242 : | mb_motion_table[code].len); | ||
243 : | |||
244 : | if (f_code) | ||
245 : | Isibaar | 1.1 | BitstreamPutBits(bs, mv_res, f_code); |
246 : | edgomez | 1.7 | } |
247 : | |||
248 : | Isibaar | 1.1 | } |
249 : | |||
250 : | edgomez | 1.37 | static __inline void |
251 : | CodeCoeffInter(Bitstream * bs, | ||
252 : | const int16_t qcoeff[64], | ||
253 : | const uint16_t * zigzag) | ||
254 : | { | ||
255 : | uint32_t i, run, prev_run, code, len; | ||
256 : | int32_t level, prev_level, level_shifted; | ||
257 : | |||
258 : | i = 0; | ||
259 : | run = 0; | ||
260 : | |||
261 : | while (!(level = qcoeff[zigzag[i++]])) | ||
262 : | run++; | ||
263 : | |||
264 : | prev_level = level; | ||
265 : | prev_run = run; | ||
266 : | run = 0; | ||
267 : | |||
268 : | while (i < 64) | ||
269 : | { | ||
270 : | if ((level = qcoeff[zigzag[i++]]) != 0) | ||
271 : | { | ||
272 : | level_shifted = prev_level + 32; | ||
273 : | if (!(level_shifted & -64)) | ||
274 : | { | ||
275 : | code = coeff_VLC[0][0][level_shifted][prev_run].code; | ||
276 : | len = coeff_VLC[0][0][level_shifted][prev_run].len; | ||
277 : | } | ||
278 : | else | ||
279 : | { | ||
280 : | code = (ESCAPE3 << 21) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; | ||
281 : | len = 30; | ||
282 : | } | ||
283 : | BitstreamPutBits(bs, code, len); | ||
284 : | prev_level = level; | ||
285 : | prev_run = run; | ||
286 : | run = 0; | ||
287 : | } | ||
288 : | else | ||
289 : | run++; | ||
290 : | } | ||
291 : | |||
292 : | level_shifted = prev_level + 32; | ||
293 : | if (!(level_shifted & -64)) | ||
294 : | { | ||
295 : | code = coeff_VLC[0][1][level_shifted][prev_run].code; | ||
296 : | len = coeff_VLC[0][1][level_shifted][prev_run].len; | ||
297 : | } | ||
298 : | else | ||
299 : | { | ||
300 : | code = (ESCAPE3 << 21) | (1 << 20) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; | ||
301 : | len = 30; | ||
302 : | } | ||
303 : | BitstreamPutBits(bs, code, len); | ||
304 : | } | ||
305 : | |||
306 : | static __inline void | ||
307 : | CodeCoeffIntra(Bitstream * bs, | ||
308 : | const int16_t qcoeff[64], | ||
309 : | const uint16_t * zigzag) | ||
310 : | { | ||
311 : | uint32_t i, abs_level, run, prev_run, code, len; | ||
312 : | int32_t level, prev_level; | ||
313 : | |||
314 : | i = 1; | ||
315 : | run = 0; | ||
316 : | |||
317 : | edgomez | 1.42 | while (i<64 && !(level = qcoeff[zigzag[i++]])) |
318 : | edgomez | 1.37 | run++; |
319 : | |||
320 : | prev_level = level; | ||
321 : | prev_run = run; | ||
322 : | run = 0; | ||
323 : | |||
324 : | while (i < 64) | ||
325 : | { | ||
326 : | if ((level = qcoeff[zigzag[i++]]) != 0) | ||
327 : | { | ||
328 : | edgomez | 1.46 | abs_level = abs(prev_level); |
329 : | edgomez | 1.37 | abs_level = abs_level < 64 ? abs_level : 0; |
330 : | code = coeff_VLC[1][0][abs_level][prev_run].code; | ||
331 : | len = coeff_VLC[1][0][abs_level][prev_run].len; | ||
332 : | if (len != 128) | ||
333 : | code |= (prev_level < 0); | ||
334 : | else | ||
335 : | { | ||
336 : | code = (ESCAPE3 << 21) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; | ||
337 : | len = 30; | ||
338 : | } | ||
339 : | BitstreamPutBits(bs, code, len); | ||
340 : | prev_level = level; | ||
341 : | prev_run = run; | ||
342 : | run = 0; | ||
343 : | } | ||
344 : | else | ||
345 : | run++; | ||
346 : | } | ||
347 : | |||
348 : | edgomez | 1.46 | abs_level = abs(prev_level); |
349 : | edgomez | 1.37 | abs_level = abs_level < 64 ? abs_level : 0; |
350 : | code = coeff_VLC[1][1][abs_level][prev_run].code; | ||
351 : | len = coeff_VLC[1][1][abs_level][prev_run].len; | ||
352 : | if (len != 128) | ||
353 : | code |= (prev_level < 0); | ||
354 : | else | ||
355 : | { | ||
356 : | code = (ESCAPE3 << 21) | (1 << 20) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; | ||
357 : | len = 30; | ||
358 : | } | ||
359 : | BitstreamPutBits(bs, code, len); | ||
360 : | } | ||
361 : | |||
362 : | edgomez | 1.42 | |
363 : | |||
364 : | /* returns the number of bits required to encode qcoeff */ | ||
365 : | |||
366 : | edgomez | 1.46 | int |
367 : | edgomez | 1.42 | CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag) |
368 : | { | ||
369 : | int bits = 0; | ||
370 : | uint32_t i, abs_level, run, prev_run, len; | ||
371 : | int32_t level, prev_level; | ||
372 : | |||
373 : | i = 1; | ||
374 : | run = 0; | ||
375 : | |||
376 : | while (i<64 && !(level = qcoeff[zigzag[i++]])) | ||
377 : | run++; | ||
378 : | |||
379 : | if (i >= 64) return 0; /* empty block */ | ||
380 : | |||
381 : | prev_level = level; | ||
382 : | prev_run = run; | ||
383 : | run = 0; | ||
384 : | |||
385 : | while (i < 64) | ||
386 : | { | ||
387 : | if ((level = qcoeff[zigzag[i++]]) != 0) | ||
388 : | { | ||
389 : | edgomez | 1.46 | abs_level = abs(prev_level); |
390 : | edgomez | 1.42 | abs_level = abs_level < 64 ? abs_level : 0; |
391 : | len = coeff_VLC[1][0][abs_level][prev_run].len; | ||
392 : | bits += len!=128 ? len : 30; | ||
393 : | |||
394 : | prev_level = level; | ||
395 : | prev_run = run; | ||
396 : | run = 0; | ||
397 : | } | ||
398 : | else | ||
399 : | run++; | ||
400 : | } | ||
401 : | |||
402 : | edgomez | 1.46 | abs_level = abs(prev_level); |
403 : | edgomez | 1.42 | abs_level = abs_level < 64 ? abs_level : 0; |
404 : | len = coeff_VLC[1][1][abs_level][prev_run].len; | ||
405 : | bits += len!=128 ? len : 30; | ||
406 : | |||
407 : | return bits; | ||
408 : | } | ||
409 : | |||
410 : | int | ||
411 : | CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag) | ||
412 : | { | ||
413 : | uint32_t i, run, prev_run, len; | ||
414 : | int32_t level, prev_level, level_shifted; | ||
415 : | int bits = 0; | ||
416 : | |||
417 : | i = 0; | ||
418 : | run = 0; | ||
419 : | |||
420 : | while (!(level = qcoeff[zigzag[i++]])) | ||
421 : | run++; | ||
422 : | |||
423 : | prev_level = level; | ||
424 : | prev_run = run; | ||
425 : | run = 0; | ||
426 : | |||
427 : | while (i < 64) { | ||
428 : | if ((level = qcoeff[zigzag[i++]]) != 0) { | ||
429 : | level_shifted = prev_level + 32; | ||
430 : | if (!(level_shifted & -64)) | ||
431 : | len = coeff_VLC[0][0][level_shifted][prev_run].len; | ||
432 : | else | ||
433 : | len = 30; | ||
434 : | |||
435 : | bits += len; | ||
436 : | prev_level = level; | ||
437 : | prev_run = run; | ||
438 : | run = 0; | ||
439 : | } | ||
440 : | else | ||
441 : | run++; | ||
442 : | } | ||
443 : | |||
444 : | level_shifted = prev_level + 32; | ||
445 : | if (!(level_shifted & -64)) | ||
446 : | len = coeff_VLC[0][1][level_shifted][prev_run].len; | ||
447 : | else | ||
448 : | len = 30; | ||
449 : | bits += len; | ||
450 : | |||
451 : | return bits; | ||
452 : | } | ||
453 : | |||
454 : | edgomez | 1.48 | static const int iDQtab[5] = { |
455 : | edgomez | 1.46 | 1, 0, -1 /* no change */, 2, 3 |
456 : | }; | ||
457 : | #define DQ_VALUE2INDEX(value) iDQtab[(value)+2] | ||
458 : | edgomez | 1.42 | |
459 : | edgomez | 1.37 | |
460 : | edgomez | 1.42 | static __inline void |
461 : | CodeBlockIntra(const FRAMEINFO * const frame, | ||
462 : | edgomez | 1.17 | const MACROBLOCK * pMB, |
463 : | int16_t qcoeff[6 * 64], | ||
464 : | edgomez | 1.7 | Bitstream * bs, |
465 : | Statistics * pStat) | ||
466 : | Isibaar | 1.1 | { |
467 : | edgomez | 1.7 | |
468 : | Isibaar | 1.1 | uint32_t i, mcbpc, cbpy, bits; |
469 : | |||
470 : | cbpy = pMB->cbp >> 2; | ||
471 : | |||
472 : | edgomez | 1.46 | /* write mcbpc */ |
473 : | edgomez | 1.17 | if (frame->coding_type == I_VOP) { |
474 : | edgomez | 1.7 | mcbpc = ((pMB->mode >> 1) & 3) | ((pMB->cbp & 3) << 2); |
475 : | edgomez | 1.17 | BitstreamPutBits(bs, mcbpc_intra_tab[mcbpc].code, |
476 : | mcbpc_intra_tab[mcbpc].len); | ||
477 : | } else { | ||
478 : | edgomez | 1.7 | mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
479 : | edgomez | 1.17 | BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, |
480 : | mcbpc_inter_tab[mcbpc].len); | ||
481 : | Isibaar | 1.4 | } |
482 : | Isibaar | 1.1 | |
483 : | edgomez | 1.46 | /* ac prediction flag */ |
484 : | edgomez | 1.17 | if (pMB->acpred_directions[0]) |
485 : | edgomez | 1.7 | BitstreamPutBits(bs, 1, 1); |
486 : | Isibaar | 1.1 | else |
487 : | edgomez | 1.7 | BitstreamPutBits(bs, 0, 1); |
488 : | Isibaar | 1.1 | |
489 : | edgomez | 1.46 | /* write cbpy */ |
490 : | chl | 1.45 | BitstreamPutBits(bs, xvid_cbpy_tab[cbpy].code, xvid_cbpy_tab[cbpy].len); |
491 : | Isibaar | 1.1 | |
492 : | edgomez | 1.46 | /* write dquant */ |
493 : | edgomez | 1.17 | if (pMB->mode == MODE_INTRA_Q) |
494 : | edgomez | 1.46 | BitstreamPutBits(bs, DQ_VALUE2INDEX(pMB->dquant), 2); |
495 : | Isibaar | 1.1 | |
496 : | edgomez | 1.46 | /* write interlacing */ |
497 : | if (frame->vol_flags & XVID_VOL_INTERLACING) { | ||
498 : | h | 1.6 | BitstreamPutBit(bs, pMB->field_dct); |
499 : | } | ||
500 : | edgomez | 1.46 | /* code block coeffs */ |
501 : | edgomez | 1.17 | for (i = 0; i < 6; i++) { |
502 : | if (i < 4) | ||
503 : | BitstreamPutBits(bs, dcy_tab[qcoeff[i * 64 + 0] + 255].code, | ||
504 : | dcy_tab[qcoeff[i * 64 + 0] + 255].len); | ||
505 : | Isibaar | 1.1 | else |
506 : | edgomez | 1.17 | BitstreamPutBits(bs, dcc_tab[qcoeff[i * 64 + 0] + 255].code, |
507 : | dcc_tab[qcoeff[i * 64 + 0] + 255].len); | ||
508 : | |||
509 : | if (pMB->cbp & (1 << (5 - i))) { | ||
510 : | edgomez | 1.42 | const uint16_t *scan_table = |
511 : | edgomez | 1.46 | frame->vop_flags & XVID_VOP_ALTERNATESCAN ? |
512 : | edgomez | 1.42 | scan_tables[2] : scan_tables[pMB->acpred_directions[i]]; |
513 : | |||
514 : | Isibaar | 1.1 | bits = BitstreamPos(bs); |
515 : | |||
516 : | edgomez | 1.42 | CodeCoeffIntra(bs, &qcoeff[i * 64], scan_table); |
517 : | |||
518 : | Isibaar | 1.1 | bits = BitstreamPos(bs) - bits; |
519 : | pStat->iTextBits += bits; | ||
520 : | } | ||
521 : | } | ||
522 : | edgomez | 1.7 | |
523 : | Isibaar | 1.1 | } |
524 : | |||
525 : | |||
526 : | edgomez | 1.17 | static void |
527 : | edgomez | 1.42 | CodeBlockInter(const FRAMEINFO * const frame, |
528 : | edgomez | 1.17 | const MACROBLOCK * pMB, |
529 : | int16_t qcoeff[6 * 64], | ||
530 : | edgomez | 1.7 | Bitstream * bs, |
531 : | Statistics * pStat) | ||
532 : | Isibaar | 1.1 | { |
533 : | edgomez | 1.7 | |
534 : | Isibaar | 1.1 | int32_t i; |
535 : | uint32_t bits, mcbpc, cbpy; | ||
536 : | |||
537 : | edgomez | 1.7 | mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
538 : | Isibaar | 1.1 | cbpy = 15 - (pMB->cbp >> 2); |
539 : | |||
540 : | edgomez | 1.46 | /* write mcbpc */ |
541 : | edgomez | 1.17 | BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, |
542 : | mcbpc_inter_tab[mcbpc].len); | ||
543 : | Isibaar | 1.1 | |
544 : | edgomez | 1.42 | if ( (frame->coding_type == S_VOP) && (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) ) |
545 : | edgomez | 1.46 | BitstreamPutBit(bs, pMB->mcsel); /* mcsel: '0'=local motion, '1'=GMC */ |
546 : | edgomez | 1.42 | |
547 : | edgomez | 1.46 | /* write cbpy */ |
548 : | chl | 1.45 | BitstreamPutBits(bs, xvid_cbpy_tab[cbpy].code, xvid_cbpy_tab[cbpy].len); |
549 : | Isibaar | 1.1 | |
550 : | edgomez | 1.46 | /* write dquant */ |
551 : | edgomez | 1.17 | if (pMB->mode == MODE_INTER_Q) |
552 : | edgomez | 1.46 | BitstreamPutBits(bs, DQ_VALUE2INDEX(pMB->dquant), 2); |
553 : | edgomez | 1.17 | |
554 : | edgomez | 1.46 | /* interlacing */ |
555 : | if (frame->vol_flags & XVID_VOL_INTERLACING) { | ||
556 : | h | 1.25 | if (pMB->cbp) { |
557 : | BitstreamPutBit(bs, pMB->field_dct); | ||
558 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_MB,"codep: field_dct: %i\n", pMB->field_dct); |
559 : | h | 1.25 | } |
560 : | h | 1.6 | |
561 : | edgomez | 1.46 | /* if inter block, write field ME flag */ |
562 : | if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) && (pMB->mcsel == 0)) { | ||
563 : | BitstreamPutBit(bs, 0 /*pMB->field_pred*/); /* not implemented yet */ | ||
564 : | DPRINTF(XVID_DEBUG_MB,"codep: field_pred: %i\n", pMB->field_pred); | ||
565 : | h | 1.6 | |
566 : | edgomez | 1.46 | /* write field prediction references */ |
567 : | #if 0 /* Remove the #if once field_pred is supported */ | ||
568 : | edgomez | 1.17 | if (pMB->field_pred) { |
569 : | h | 1.6 | BitstreamPutBit(bs, pMB->field_for_top); |
570 : | BitstreamPutBit(bs, pMB->field_for_bot); | ||
571 : | } | ||
572 : | edgomez | 1.46 | #endif |
573 : | h | 1.6 | } |
574 : | } | ||
575 : | edgomez | 1.46 | /* code motion vector(s) if motion is local */ |
576 : | edgomez | 1.42 | if (!pMB->mcsel) |
577 : | for (i = 0; i < (pMB->mode == MODE_INTER4V ? 4 : 1); i++) { | ||
578 : | syskin | 1.49 | CodeVector(bs, pMB->pmvs[i].x, frame->fcode); |
579 : | CodeVector(bs, pMB->pmvs[i].y, frame->fcode); | ||
580 : | edgomez | 1.42 | } |
581 : | Isibaar | 1.1 | |
582 : | bits = BitstreamPos(bs); | ||
583 : | edgomez | 1.17 | |
584 : | edgomez | 1.46 | /* code block coeffs */ |
585 : | edgomez | 1.17 | for (i = 0; i < 6; i++) |
586 : | edgomez | 1.46 | if (pMB->cbp & (1 << (5 - i))) { |
587 : | edgomez | 1.42 | const uint16_t *scan_table = |
588 : | edgomez | 1.46 | frame->vop_flags & XVID_VOP_ALTERNATESCAN ? |
589 : | edgomez | 1.42 | scan_tables[2] : scan_tables[0]; |
590 : | |||
591 : | CodeCoeffInter(bs, &qcoeff[i * 64], scan_table); | ||
592 : | } | ||
593 : | Isibaar | 1.1 | |
594 : | bits = BitstreamPos(bs) - bits; | ||
595 : | pStat->iTextBits += bits; | ||
596 : | } | ||
597 : | |||
598 : | |||
599 : | edgomez | 1.17 | void |
600 : | edgomez | 1.42 | MBCoding(const FRAMEINFO * const frame, |
601 : | edgomez | 1.17 | MACROBLOCK * pMB, |
602 : | int16_t qcoeff[6 * 64], | ||
603 : | Bitstream * bs, | ||
604 : | Statistics * pStat) | ||
605 : | Isibaar | 1.1 | { |
606 : | edgomez | 1.46 | if (frame->coding_type != I_VOP) |
607 : | BitstreamPutBit(bs, 0); /* not_coded */ | ||
608 : | |||
609 : | syskin | 1.50 | if (frame->vop_flags & XVID_VOP_GREYSCALE) { |
610 : | pMB->cbp &= 0x3C; /* keep only bits 5-2 */ | ||
611 : | qcoeff[4*64+0]=0; /* for INTRA DC value is saved */ | ||
612 : | qcoeff[5*64+0]=0; | ||
613 : | } | ||
614 : | |||
615 : | chl | 1.22 | if (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q) |
616 : | suxen_drol | 1.13 | CodeBlockIntra(frame, pMB, qcoeff, bs, pStat); |
617 : | Isibaar | 1.1 | else |
618 : | suxen_drol | 1.13 | CodeBlockInter(frame, pMB, qcoeff, bs, pStat); |
619 : | edgomez | 1.7 | |
620 : | Isibaar | 1.1 | } |
621 : | chl | 1.24 | |
622 : | edgomez | 1.42 | /*************************************************************** |
623 : | * bframe encoding start | ||
624 : | ***************************************************************/ | ||
625 : | Isibaar | 1.1 | |
626 : | edgomez | 1.27 | /* |
627 : | edgomez | 1.42 | mbtype |
628 : | 0 1b direct(h263) mvdb | ||
629 : | 1 01b interpolate mc+q dbquant, mvdf, mvdb | ||
630 : | 2 001b backward mc+q dbquant, mvdb | ||
631 : | 3 0001b forward mc+q dbquant, mvdf | ||
632 : | */ | ||
633 : | suxen_drol | 1.19 | |
634 : | edgomez | 1.42 | static __inline void |
635 : | put_bvop_mbtype(Bitstream * bs, | ||
636 : | int value) | ||
637 : | { | ||
638 : | switch (value) { | ||
639 : | case MODE_FORWARD: | ||
640 : | BitstreamPutBit(bs, 0); | ||
641 : | case MODE_BACKWARD: | ||
642 : | BitstreamPutBit(bs, 0); | ||
643 : | case MODE_INTERPOLATE: | ||
644 : | BitstreamPutBit(bs, 0); | ||
645 : | case MODE_DIRECT: | ||
646 : | BitstreamPutBit(bs, 1); | ||
647 : | default: | ||
648 : | break; | ||
649 : | } | ||
650 : | } | ||
651 : | |||
652 : | /* | ||
653 : | dbquant | ||
654 : | -2 10b | ||
655 : | 0 0b | ||
656 : | +2 11b | ||
657 : | */ | ||
658 : | |||
659 : | static __inline void | ||
660 : | put_bvop_dbquant(Bitstream * bs, | ||
661 : | int value) | ||
662 : | { | ||
663 : | switch (value) { | ||
664 : | case 0: | ||
665 : | BitstreamPutBit(bs, 0); | ||
666 : | return; | ||
667 : | |||
668 : | case -2: | ||
669 : | BitstreamPutBit(bs, 1); | ||
670 : | BitstreamPutBit(bs, 0); | ||
671 : | return; | ||
672 : | |||
673 : | case 2: | ||
674 : | BitstreamPutBit(bs, 1); | ||
675 : | BitstreamPutBit(bs, 1); | ||
676 : | return; | ||
677 : | |||
678 : | edgomez | 1.46 | default:; /* invalid */ |
679 : | edgomez | 1.42 | } |
680 : | } | ||
681 : | |||
682 : | |||
683 : | |||
684 : | void | ||
685 : | edgomez | 1.46 | MBCodingBVOP(const FRAMEINFO * const frame, |
686 : | const MACROBLOCK * mb, | ||
687 : | edgomez | 1.42 | const int16_t qcoeff[6 * 64], |
688 : | const int32_t fcode, | ||
689 : | const int32_t bcode, | ||
690 : | Bitstream * bs, | ||
691 : | edgomez | 1.46 | Statistics * pStat) |
692 : | edgomez | 1.42 | { |
693 : | int vcode = fcode; | ||
694 : | unsigned int i; | ||
695 : | |||
696 : | edgomez | 1.46 | const uint16_t *scan_table = |
697 : | frame->vop_flags & XVID_VOP_ALTERNATESCAN ? | ||
698 : | scan_tables[2] : scan_tables[0]; | ||
699 : | int bits; | ||
700 : | |||
701 : | edgomez | 1.42 | /* ------------------------------------------------------------------ |
702 : | when a block is skipped it is decoded DIRECT(0,0) | ||
703 : | hence is interpolated from forward & backward frames | ||
704 : | ------------------------------------------------------------------ */ | ||
705 : | |||
706 : | if (mb->mode == MODE_DIRECT_NONE_MV) { | ||
707 : | edgomez | 1.46 | BitstreamPutBit(bs, 1); /* skipped */ |
708 : | edgomez | 1.42 | return; |
709 : | } | ||
710 : | |||
711 : | edgomez | 1.46 | BitstreamPutBit(bs, 0); /* not skipped */ |
712 : | edgomez | 1.42 | |
713 : | if (mb->cbp == 0) { | ||
714 : | edgomez | 1.46 | BitstreamPutBit(bs, 1); /* cbp == 0 */ |
715 : | edgomez | 1.42 | } else { |
716 : | edgomez | 1.46 | BitstreamPutBit(bs, 0); /* cbp == xxx */ |
717 : | edgomez | 1.42 | } |
718 : | |||
719 : | put_bvop_mbtype(bs, mb->mode); | ||
720 : | |||
721 : | if (mb->cbp) { | ||
722 : | BitstreamPutBits(bs, mb->cbp, 6); | ||
723 : | } | ||
724 : | |||
725 : | if (mb->mode != MODE_DIRECT && mb->cbp != 0) { | ||
726 : | edgomez | 1.46 | put_bvop_dbquant(bs, 0); /* todo: mb->dquant = 0 */ |
727 : | edgomez | 1.42 | } |
728 : | |||
729 : | edgomez | 1.46 | if (frame->vol_flags & XVID_VOL_INTERLACING) { |
730 : | if (mb->cbp) { | ||
731 : | BitstreamPutBit(bs, mb->field_dct); | ||
732 : | DPRINTF(XVID_DEBUG_MB,"codep: field_dct: %i\n", mb->field_dct); | ||
733 : | } | ||
734 : | |||
735 : | /* if not direct block, write field ME flag */ | ||
736 : | if (mb->mode != MODE_DIRECT) { | ||
737 : | BitstreamPutBit(bs, 0 /*mb->field_pred*/); /* field ME not implemented */ | ||
738 : | |||
739 : | /* write field prediction references */ | ||
740 : | #if 0 /* Remove the #if once field_pred is supported */ | ||
741 : | if (mb->field_pred) { | ||
742 : | BitstreamPutBit(bs, mb->field_for_top); | ||
743 : | BitstreamPutBit(bs, mb->field_for_bot); | ||
744 : | } | ||
745 : | #endif | ||
746 : | } | ||
747 : | } | ||
748 : | |||
749 : | |||
750 : | edgomez | 1.42 | switch (mb->mode) { |
751 : | case MODE_INTERPOLATE: | ||
752 : | syskin | 1.49 | CodeVector(bs, mb->pmvs[1].x, vcode); /* forward vector of interpolate mode */ |
753 : | CodeVector(bs, mb->pmvs[1].y, vcode); | ||
754 : | edgomez | 1.42 | case MODE_BACKWARD: |
755 : | vcode = bcode; | ||
756 : | case MODE_FORWARD: | ||
757 : | syskin | 1.49 | CodeVector(bs, mb->pmvs[0].x, vcode); |
758 : | CodeVector(bs, mb->pmvs[0].y, vcode); | ||
759 : | edgomez | 1.42 | break; |
760 : | case MODE_DIRECT: | ||
761 : | syskin | 1.49 | CodeVector(bs, mb->pmvs[3].x, 1); /* fcode is always 1 for delta vector */ |
762 : | CodeVector(bs, mb->pmvs[3].y, 1); /* prediction is always (0,0) */ | ||
763 : | edgomez | 1.42 | default: break; |
764 : | } | ||
765 : | |||
766 : | edgomez | 1.46 | bits = BitstreamPos(bs); |
767 : | edgomez | 1.42 | for (i = 0; i < 6; i++) { |
768 : | if (mb->cbp & (1 << (5 - i))) { | ||
769 : | edgomez | 1.46 | CodeCoeffInter(bs, &qcoeff[i * 64], scan_table); |
770 : | edgomez | 1.42 | } |
771 : | } | ||
772 : | edgomez | 1.46 | pStat->iTextBits += BitstreamPos(bs) - bits; |
773 : | edgomez | 1.42 | } |
774 : | |||
775 : | |||
776 : | |||
777 : | /*************************************************************** | ||
778 : | * decoding stuff starts here * | ||
779 : | ***************************************************************/ | ||
780 : | |||
781 : | |||
782 : | edgomez | 1.46 | /* |
783 : | * for IVOP addbits == 0 | ||
784 : | * for PVOP addbits == fcode - 1 | ||
785 : | * for BVOP addbits == max(fcode,bcode) - 1 | ||
786 : | * returns true or false | ||
787 : | */ | ||
788 : | int | ||
789 : | suxen_drol | 1.19 | check_resync_marker(Bitstream * bs, int addbits) |
790 : | { | ||
791 : | uint32_t nbits; | ||
792 : | uint32_t code; | ||
793 : | uint32_t nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER + addbits; | ||
794 : | |||
795 : | nbits = BitstreamNumBitsToByteAlign(bs); | ||
796 : | code = BitstreamShowBits(bs, nbits); | ||
797 : | |||
798 : | if (code == (((uint32_t)1 << (nbits - 1)) - 1)) | ||
799 : | { | ||
800 : | return BitstreamShowBitsFromByteAlign(bs, nbitsresyncmarker) == RESYNC_MARKER; | ||
801 : | } | ||
802 : | |||
803 : | return 0; | ||
804 : | } | ||
805 : | |||
806 : | |||
807 : | |||
808 : | edgomez | 1.17 | int |
809 : | get_mcbpc_intra(Bitstream * bs) | ||
810 : | Isibaar | 1.1 | { |
811 : | edgomez | 1.7 | |
812 : | Isibaar | 1.1 | uint32_t index; |
813 : | edgomez | 1.17 | |
814 : | suxen_drol | 1.19 | index = BitstreamShowBits(bs, 9); |
815 : | Isibaar | 1.1 | index >>= 3; |
816 : | |||
817 : | BitstreamSkip(bs, mcbpc_intra_table[index].len); | ||
818 : | edgomez | 1.7 | |
819 : | Isibaar | 1.1 | return mcbpc_intra_table[index].code; |
820 : | edgomez | 1.7 | |
821 : | Isibaar | 1.1 | } |
822 : | |||
823 : | edgomez | 1.17 | int |
824 : | get_mcbpc_inter(Bitstream * bs) | ||
825 : | Isibaar | 1.1 | { |
826 : | edgomez | 1.7 | |
827 : | Isibaar | 1.1 | uint32_t index; |
828 : | edgomez | 1.46 | |
829 : | edgomez | 1.42 | index = MIN(BitstreamShowBits(bs, 9), 256); |
830 : | Isibaar | 1.1 | |
831 : | edgomez | 1.17 | BitstreamSkip(bs, mcbpc_inter_table[index].len); |
832 : | edgomez | 1.7 | |
833 : | Isibaar | 1.1 | return mcbpc_inter_table[index].code; |
834 : | edgomez | 1.7 | |
835 : | Isibaar | 1.1 | } |
836 : | |||
837 : | edgomez | 1.17 | int |
838 : | get_cbpy(Bitstream * bs, | ||
839 : | int intra) | ||
840 : | Isibaar | 1.1 | { |
841 : | edgomez | 1.7 | |
842 : | Isibaar | 1.1 | int cbpy; |
843 : | uint32_t index = BitstreamShowBits(bs, 6); | ||
844 : | |||
845 : | BitstreamSkip(bs, cbpy_table[index].len); | ||
846 : | cbpy = cbpy_table[index].code; | ||
847 : | |||
848 : | edgomez | 1.17 | if (!intra) |
849 : | Isibaar | 1.1 | cbpy = 15 - cbpy; |
850 : | |||
851 : | return cbpy; | ||
852 : | edgomez | 1.7 | |
853 : | Isibaar | 1.1 | } |
854 : | |||
855 : | edgomez | 1.42 | static __inline int |
856 : | edgomez | 1.17 | get_mv_data(Bitstream * bs) |
857 : | Isibaar | 1.1 | { |
858 : | edgomez | 1.7 | |
859 : | Isibaar | 1.1 | uint32_t index; |
860 : | |||
861 : | edgomez | 1.17 | if (BitstreamGetBit(bs)) |
862 : | Isibaar | 1.1 | return 0; |
863 : | edgomez | 1.17 | |
864 : | Isibaar | 1.1 | index = BitstreamShowBits(bs, 12); |
865 : | |||
866 : | edgomez | 1.17 | if (index >= 512) { |
867 : | Isibaar | 1.1 | index = (index >> 8) - 2; |
868 : | BitstreamSkip(bs, TMNMVtab0[index].len); | ||
869 : | return TMNMVtab0[index].code; | ||
870 : | } | ||
871 : | edgomez | 1.17 | |
872 : | if (index >= 128) { | ||
873 : | Isibaar | 1.1 | index = (index >> 2) - 32; |
874 : | BitstreamSkip(bs, TMNMVtab1[index].len); | ||
875 : | return TMNMVtab1[index].code; | ||
876 : | } | ||
877 : | |||
878 : | edgomez | 1.17 | index -= 4; |
879 : | Isibaar | 1.1 | |
880 : | BitstreamSkip(bs, TMNMVtab2[index].len); | ||
881 : | return TMNMVtab2[index].code; | ||
882 : | edgomez | 1.7 | |
883 : | Isibaar | 1.1 | } |
884 : | |||
885 : | edgomez | 1.17 | int |
886 : | get_mv(Bitstream * bs, | ||
887 : | int fcode) | ||
888 : | Isibaar | 1.1 | { |
889 : | edgomez | 1.7 | |
890 : | Isibaar | 1.1 | int data; |
891 : | int res; | ||
892 : | int mv; | ||
893 : | int scale_fac = 1 << (fcode - 1); | ||
894 : | |||
895 : | data = get_mv_data(bs); | ||
896 : | edgomez | 1.17 | |
897 : | if (scale_fac == 1 || data == 0) | ||
898 : | Isibaar | 1.1 | return data; |
899 : | |||
900 : | res = BitstreamGetBits(bs, fcode - 1); | ||
901 : | edgomez | 1.46 | mv = ((abs(data) - 1) * scale_fac) + res + 1; |
902 : | edgomez | 1.17 | |
903 : | Isibaar | 1.1 | return data < 0 ? -mv : mv; |
904 : | edgomez | 1.7 | |
905 : | Isibaar | 1.1 | } |
906 : | |||
907 : | edgomez | 1.17 | int |
908 : | get_dc_dif(Bitstream * bs, | ||
909 : | uint32_t dc_size) | ||
910 : | Isibaar | 1.1 | { |
911 : | edgomez | 1.7 | |
912 : | Isibaar | 1.1 | int code = BitstreamGetBits(bs, dc_size); |
913 : | int msb = code >> (dc_size - 1); | ||
914 : | |||
915 : | edgomez | 1.17 | if (msb == 0) |
916 : | return (-1 * (code ^ ((1 << dc_size) - 1))); | ||
917 : | Isibaar | 1.1 | |
918 : | return code; | ||
919 : | edgomez | 1.7 | |
920 : | Isibaar | 1.1 | } |
921 : | |||
922 : | edgomez | 1.17 | int |
923 : | get_dc_size_lum(Bitstream * bs) | ||
924 : | Isibaar | 1.1 | { |
925 : | edgomez | 1.7 | |
926 : | Isibaar | 1.1 | int code, i; |
927 : | edgomez | 1.17 | |
928 : | Isibaar | 1.1 | code = BitstreamShowBits(bs, 11); |
929 : | |||
930 : | edgomez | 1.17 | for (i = 11; i > 3; i--) { |
931 : | if (code == 1) { | ||
932 : | Isibaar | 1.1 | BitstreamSkip(bs, i); |
933 : | return i + 1; | ||
934 : | } | ||
935 : | code >>= 1; | ||
936 : | } | ||
937 : | |||
938 : | BitstreamSkip(bs, dc_lum_tab[code].len); | ||
939 : | return dc_lum_tab[code].code; | ||
940 : | edgomez | 1.7 | |
941 : | Isibaar | 1.1 | } |
942 : | |||
943 : | |||
944 : | edgomez | 1.17 | int |
945 : | get_dc_size_chrom(Bitstream * bs) | ||
946 : | Isibaar | 1.1 | { |
947 : | edgomez | 1.7 | |
948 : | Isibaar | 1.1 | uint32_t code, i; |
949 : | edgomez | 1.17 | |
950 : | Isibaar | 1.1 | code = BitstreamShowBits(bs, 12); |
951 : | |||
952 : | edgomez | 1.17 | for (i = 12; i > 2; i--) { |
953 : | if (code == 1) { | ||
954 : | Isibaar | 1.1 | BitstreamSkip(bs, i); |
955 : | return i; | ||
956 : | } | ||
957 : | code >>= 1; | ||
958 : | } | ||
959 : | |||
960 : | return 3 - BitstreamGetBits(bs, 2); | ||
961 : | edgomez | 1.7 | |
962 : | Isibaar | 1.1 | } |
963 : | edgomez | 1.27 | |
964 : | edgomez | 1.47 | #define GET_BITS(cache, n) ((cache)>>(32-(n))) |
965 : | |||
966 : | edgomez | 1.27 | static __inline int |
967 : | get_coeff(Bitstream * bs, | ||
968 : | int *run, | ||
969 : | int *last, | ||
970 : | int intra, | ||
971 : | int short_video_header) | ||
972 : | { | ||
973 : | |||
974 : | uint32_t mode; | ||
975 : | int32_t level; | ||
976 : | edgomez | 1.37 | REVERSE_EVENT *reverse_event; |
977 : | edgomez | 1.27 | |
978 : | edgomez | 1.47 | uint32_t cache = BitstreamShowBits(bs, 32); |
979 : | |||
980 : | edgomez | 1.34 | if (short_video_header) /* inter-VLCs will be used for both intra and inter blocks */ |
981 : | edgomez | 1.27 | intra = 0; |
982 : | |||
983 : | edgomez | 1.47 | if (GET_BITS(cache, 7) != ESCAPE) { |
984 : | reverse_event = &DCT3D[intra][GET_BITS(cache, 12)]; | ||
985 : | edgomez | 1.37 | |
986 : | if ((level = reverse_event->event.level) == 0) | ||
987 : | goto error; | ||
988 : | edgomez | 1.27 | |
989 : | edgomez | 1.37 | *last = reverse_event->event.last; |
990 : | *run = reverse_event->event.run; | ||
991 : | edgomez | 1.27 | |
992 : | edgomez | 1.47 | /* Don't forget to update the bitstream position */ |
993 : | BitstreamSkip(bs, reverse_event->len+1); | ||
994 : | edgomez | 1.27 | |
995 : | edgomez | 1.47 | return (GET_BITS(cache, reverse_event->len+1)&0x01) ? -level : level; |
996 : | edgomez | 1.27 | } |
997 : | |||
998 : | edgomez | 1.47 | /* flush 7bits of cache */ |
999 : | cache <<= 7; | ||
1000 : | edgomez | 1.37 | |
1001 : | edgomez | 1.27 | if (short_video_header) { |
1002 : | edgomez | 1.34 | /* escape mode 4 - H.263 type, only used if short_video_header = 1 */ |
1003 : | edgomez | 1.47 | *last = GET_BITS(cache, 1); |
1004 : | *run = (GET_BITS(cache, 7) &0x3f); | ||
1005 : | level = (GET_BITS(cache, 15)&0xff); | ||
1006 : | edgomez | 1.27 | |
1007 : | if (level == 0 || level == 128) | ||
1008 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_ERROR, "Illegal LEVEL for ESCAPE mode 4: %d\n", level); |
1009 : | edgomez | 1.27 | |
1010 : | edgomez | 1.47 | /* We've "eaten" 22 bits */ |
1011 : | BitstreamSkip(bs, 22); | ||
1012 : | |||
1013 : | edgomez | 1.37 | return (level << 24) >> 24; |
1014 : | edgomez | 1.27 | } |
1015 : | |||
1016 : | edgomez | 1.47 | if ((mode = GET_BITS(cache, 2)) < 3) { |
1017 : | const int skip[3] = {1, 1, 2}; | ||
1018 : | cache <<= skip[mode]; | ||
1019 : | edgomez | 1.27 | |
1020 : | edgomez | 1.47 | reverse_event = &DCT3D[intra][GET_BITS(cache, 12)]; |
1021 : | edgomez | 1.37 | |
1022 : | if ((level = reverse_event->event.level) == 0) | ||
1023 : | edgomez | 1.27 | goto error; |
1024 : | |||
1025 : | edgomez | 1.37 | *last = reverse_event->event.last; |
1026 : | *run = reverse_event->event.run; | ||
1027 : | edgomez | 1.27 | |
1028 : | edgomez | 1.47 | if (mode < 2) { |
1029 : | /* first escape mode, level is offset */ | ||
1030 : | edgomez | 1.37 | level += max_level[intra][*last][*run]; |
1031 : | edgomez | 1.47 | } else { |
1032 : | /* second escape mode, run is offset */ | ||
1033 : | edgomez | 1.37 | *run += max_run[intra][*last][level] + 1; |
1034 : | edgomez | 1.47 | } |
1035 : | |||
1036 : | /* Update bitstream position */ | ||
1037 : | BitstreamSkip(bs, 7 + skip[mode] + reverse_event->len + 1); | ||
1038 : | edgomez | 1.27 | |
1039 : | edgomez | 1.47 | return (GET_BITS(cache, reverse_event->len+1)&0x01) ? -level : level; |
1040 : | edgomez | 1.27 | } |
1041 : | edgomez | 1.37 | |
1042 : | edgomez | 1.34 | /* third escape mode - fixed length codes */ |
1043 : | edgomez | 1.47 | cache <<= 2; |
1044 : | *last = GET_BITS(cache, 1); | ||
1045 : | *run = (GET_BITS(cache, 7)&0x3f); | ||
1046 : | level = (GET_BITS(cache, 20)&0xfff); | ||
1047 : | |||
1048 : | /* Update bitstream position */ | ||
1049 : | BitstreamSkip(bs, 30); | ||
1050 : | edgomez | 1.27 | |
1051 : | edgomez | 1.37 | return (level << 20) >> 20; |
1052 : | edgomez | 1.27 | |
1053 : | error: | ||
1054 : | *run = VLC_ERROR; | ||
1055 : | return 0; | ||
1056 : | } | ||
1057 : | |||
1058 : | edgomez | 1.17 | void |
1059 : | get_intra_block(Bitstream * bs, | ||
1060 : | int16_t * block, | ||
1061 : | int direction, | ||
1062 : | int coeff) | ||
1063 : | Isibaar | 1.1 | { |
1064 : | edgomez | 1.7 | |
1065 : | edgomez | 1.17 | const uint16_t *scan = scan_tables[direction]; |
1066 : | edgomez | 1.42 | int level, run, last; |
1067 : | Isibaar | 1.1 | |
1068 : | edgomez | 1.17 | do { |
1069 : | Isibaar | 1.1 | level = get_coeff(bs, &run, &last, 1, 0); |
1070 : | edgomez | 1.17 | if (run == -1) { |
1071 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run"); |
1072 : | Isibaar | 1.1 | break; |
1073 : | } | ||
1074 : | coeff += run; | ||
1075 : | suxen_drol | 1.52 | |
1076 : | #ifdef _DEBUG | ||
1077 : | if(coeff>=64) { | ||
1078 : | DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n"); | ||
1079 : | return; | ||
1080 : | } | ||
1081 : | #endif | ||
1082 : | |||
1083 : | edgomez | 1.17 | block[scan[coeff]] = level; |
1084 : | suxen_drol | 1.20 | |
1085 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_COEFF,"block[%i] %i\n", scan[coeff], level); |
1086 : | #if 0 | ||
1087 : | DPRINTF(XVID_DEBUG_COEFF,"block[%i] %i %08x\n", scan[coeff], level, BitstreamShowBits(bs, 32)); | ||
1088 : | #endif | ||
1089 : | suxen_drol | 1.20 | |
1090 : | suxen_drol | 1.36 | if (level < -2047 || level > 2047) { |
1091 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_ERROR,"warning: intra_overflow %i\n", level); |
1092 : | Isibaar | 1.1 | } |
1093 : | coeff++; | ||
1094 : | } while (!last); | ||
1095 : | edgomez | 1.7 | |
1096 : | Isibaar | 1.1 | } |
1097 : | |||
1098 : | edgomez | 1.17 | void |
1099 : | edgomez | 1.47 | get_inter_block_h263( |
1100 : | Bitstream * bs, | ||
1101 : | int16_t * block, | ||
1102 : | int direction, | ||
1103 : | const int quant, | ||
1104 : | const uint16_t *matrix) | ||
1105 : | Isibaar | 1.1 | { |
1106 : | edgomez | 1.7 | |
1107 : | edgomez | 1.42 | const uint16_t *scan = scan_tables[direction]; |
1108 : | edgomez | 1.47 | const uint16_t quant_m_2 = quant << 1; |
1109 : | const uint16_t quant_add = (quant & 1 ? quant : quant - 1); | ||
1110 : | Isibaar | 1.1 | int p; |
1111 : | int level; | ||
1112 : | int run; | ||
1113 : | int last; | ||
1114 : | |||
1115 : | p = 0; | ||
1116 : | edgomez | 1.17 | do { |
1117 : | Isibaar | 1.1 | level = get_coeff(bs, &run, &last, 0, 0); |
1118 : | edgomez | 1.17 | if (run == -1) { |
1119 : | edgomez | 1.46 | DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run"); |
1120 : | Isibaar | 1.1 | break; |
1121 : | } | ||
1122 : | p += run; | ||
1123 : | chenm001 | 1.16 | |
1124 : | suxen_drol | 1.52 | #ifdef _DEBUG |
1125 : | if(p>=64) { | ||
1126 : | DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n"); | ||
1127 : | return; | ||
1128 : | } | ||
1129 : | #endif | ||
1130 : | |||
1131 : | edgomez | 1.47 | if (level < 0) { |
1132 : | level = level*quant_m_2 - quant_add; | ||
1133 : | block[scan[p]] = (level >= -2048 ? level : -2048); | ||
1134 : | } else { | ||
1135 : | level = level * quant_m_2 + quant_add; | ||
1136 : | block[scan[p]] = (level <= 2047 ? level : 2047); | ||
1137 : | } | ||
1138 : | p++; | ||
1139 : | } while (!last); | ||
1140 : | } | ||
1141 : | |||
1142 : | void | ||
1143 : | get_inter_block_mpeg( | ||
1144 : | Bitstream * bs, | ||
1145 : | int16_t * block, | ||
1146 : | int direction, | ||
1147 : | const int quant, | ||
1148 : | const uint16_t *matrix) | ||
1149 : | { | ||
1150 : | const uint16_t *scan = scan_tables[direction]; | ||
1151 : | uint32_t sum = 0; | ||
1152 : | int p; | ||
1153 : | int level; | ||
1154 : | int run; | ||
1155 : | int last; | ||
1156 : | suxen_drol | 1.20 | |
1157 : | edgomez | 1.47 | p = 0; |
1158 : | do { | ||
1159 : | level = get_coeff(bs, &run, &last, 0, 0); | ||
1160 : | if (run == -1) { | ||
1161 : | DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run"); | ||
1162 : | break; | ||
1163 : | } | ||
1164 : | p += run; | ||
1165 : | suxen_drol | 1.20 | |
1166 : | suxen_drol | 1.52 | #ifdef _DEBUG |
1167 : | if(p>=64) { | ||
1168 : | DPRINTF(XVID_DEBUG_ERROR,"error: overflow in coefficient index\n"); | ||
1169 : | return; | ||
1170 : | } | ||
1171 : | #endif | ||
1172 : | |||
1173 : | edgomez | 1.47 | if (level < 0) { |
1174 : | level = ((2 * -level + 1) * matrix[scan[p]] * quant) >> 4; | ||
1175 : | block[scan[p]] = (level <= 2048 ? -level : -2048); | ||
1176 : | } else { | ||
1177 : | level = ((2 * level + 1) * matrix[scan[p]] * quant) >> 4; | ||
1178 : | block[scan[p]] = (level <= 2047 ? level : 2047); | ||
1179 : | Isibaar | 1.1 | } |
1180 : | edgomez | 1.47 | |
1181 : | sum ^= block[scan[p]]; | ||
1182 : | |||
1183 : | Isibaar | 1.1 | p++; |
1184 : | } while (!last); | ||
1185 : | edgomez | 1.7 | |
1186 : | edgomez | 1.47 | /* mismatch control */ |
1187 : | if ((sum & 1) == 0) { | ||
1188 : | block[63] ^= 1; | ||
1189 : | } | ||
1190 : | Isibaar | 1.1 | } |
1191 : | edgomez | 1.43 | |
1192 : | edgomez | 1.46 | |
1193 : | edgomez | 1.43 | /***************************************************************************** |
1194 : | * VLC tables and other constant arrays | ||
1195 : | ****************************************************************************/ | ||
1196 : | |||
1197 : | VLC_TABLE const coeff_tab[2][102] = | ||
1198 : | { | ||
1199 : | /* intra = 0 */ | ||
1200 : | { | ||
1201 : | {{ 2, 2}, {0, 0, 1}}, | ||
1202 : | {{15, 4}, {0, 0, 2}}, | ||
1203 : | {{21, 6}, {0, 0, 3}}, | ||
1204 : | {{23, 7}, {0, 0, 4}}, | ||
1205 : | {{31, 8}, {0, 0, 5}}, | ||
1206 : | {{37, 9}, {0, 0, 6}}, | ||
1207 : | {{36, 9}, {0, 0, 7}}, | ||
1208 : | {{33, 10}, {0, 0, 8}}, | ||
1209 : | {{32, 10}, {0, 0, 9}}, | ||
1210 : | {{ 7, 11}, {0, 0, 10}}, | ||
1211 : | {{ 6, 11}, {0, 0, 11}}, | ||
1212 : | {{32, 11}, {0, 0, 12}}, | ||
1213 : | {{ 6, 3}, {0, 1, 1}}, | ||
1214 : | {{20, 6}, {0, 1, 2}}, | ||
1215 : | {{30, 8}, {0, 1, 3}}, | ||
1216 : | {{15, 10}, {0, 1, 4}}, | ||
1217 : | {{33, 11}, {0, 1, 5}}, | ||
1218 : | {{80, 12}, {0, 1, 6}}, | ||
1219 : | {{14, 4}, {0, 2, 1}}, | ||
1220 : | {{29, 8}, {0, 2, 2}}, | ||
1221 : | {{14, 10}, {0, 2, 3}}, | ||
1222 : | {{81, 12}, {0, 2, 4}}, | ||
1223 : | {{13, 5}, {0, 3, 1}}, | ||
1224 : | {{35, 9}, {0, 3, 2}}, | ||
1225 : | {{13, 10}, {0, 3, 3}}, | ||
1226 : | {{12, 5}, {0, 4, 1}}, | ||
1227 : | {{34, 9}, {0, 4, 2}}, | ||
1228 : | {{82, 12}, {0, 4, 3}}, | ||
1229 : | {{11, 5}, {0, 5, 1}}, | ||
1230 : | {{12, 10}, {0, 5, 2}}, | ||
1231 : | {{83, 12}, {0, 5, 3}}, | ||
1232 : | {{19, 6}, {0, 6, 1}}, | ||
1233 : | {{11, 10}, {0, 6, 2}}, | ||
1234 : | {{84, 12}, {0, 6, 3}}, | ||
1235 : | {{18, 6}, {0, 7, 1}}, | ||
1236 : | {{10, 10}, {0, 7, 2}}, | ||
1237 : | {{17, 6}, {0, 8, 1}}, | ||
1238 : | {{ 9, 10}, {0, 8, 2}}, | ||
1239 : | {{16, 6}, {0, 9, 1}}, | ||
1240 : | {{ 8, 10}, {0, 9, 2}}, | ||
1241 : | {{22, 7}, {0, 10, 1}}, | ||
1242 : | {{85, 12}, {0, 10, 2}}, | ||
1243 : | {{21, 7}, {0, 11, 1}}, | ||
1244 : | {{20, 7}, {0, 12, 1}}, | ||
1245 : | {{28, 8}, {0, 13, 1}}, | ||
1246 : | {{27, 8}, {0, 14, 1}}, | ||
1247 : | {{33, 9}, {0, 15, 1}}, | ||
1248 : | {{32, 9}, {0, 16, 1}}, | ||
1249 : | {{31, 9}, {0, 17, 1}}, | ||
1250 : | {{30, 9}, {0, 18, 1}}, | ||
1251 : | {{29, 9}, {0, 19, 1}}, | ||
1252 : | {{28, 9}, {0, 20, 1}}, | ||
1253 : | {{27, 9}, {0, 21, 1}}, | ||
1254 : | {{26, 9}, {0, 22, 1}}, | ||
1255 : | {{34, 11}, {0, 23, 1}}, | ||
1256 : | {{35, 11}, {0, 24, 1}}, | ||
1257 : | {{86, 12}, {0, 25, 1}}, | ||
1258 : | {{87, 12}, {0, 26, 1}}, | ||
1259 : | {{ 7, 4}, {1, 0, 1}}, | ||
1260 : | {{25, 9}, {1, 0, 2}}, | ||
1261 : | {{ 5, 11}, {1, 0, 3}}, | ||
1262 : | {{15, 6}, {1, 1, 1}}, | ||
1263 : | {{ 4, 11}, {1, 1, 2}}, | ||
1264 : | {{14, 6}, {1, 2, 1}}, | ||
1265 : | {{13, 6}, {1, 3, 1}}, | ||
1266 : | {{12, 6}, {1, 4, 1}}, | ||
1267 : | {{19, 7}, {1, 5, 1}}, | ||
1268 : | {{18, 7}, {1, 6, 1}}, | ||
1269 : | {{17, 7}, {1, 7, 1}}, | ||
1270 : | {{16, 7}, {1, 8, 1}}, | ||
1271 : | {{26, 8}, {1, 9, 1}}, | ||
1272 : | {{25, 8}, {1, 10, 1}}, | ||
1273 : | {{24, 8}, {1, 11, 1}}, | ||
1274 : | {{23, 8}, {1, 12, 1}}, | ||
1275 : | {{22, 8}, {1, 13, 1}}, | ||
1276 : | {{21, 8}, {1, 14, 1}}, | ||
1277 : | {{20, 8}, {1, 15, 1}}, | ||
1278 : | {{19, 8}, {1, 16, 1}}, | ||
1279 : | {{24, 9}, {1, 17, 1}}, | ||
1280 : | {{23, 9}, {1, 18, 1}}, | ||
1281 : | {{22, 9}, {1, 19, 1}}, | ||
1282 : | {{21, 9}, {1, 20, 1}}, | ||
1283 : | {{20, 9}, {1, 21, 1}}, | ||
1284 : | {{19, 9}, {1, 22, 1}}, | ||
1285 : | {{18, 9}, {1, 23, 1}}, | ||
1286 : | {{17, 9}, {1, 24, 1}}, | ||
1287 : | {{ 7, 10}, {1, 25, 1}}, | ||
1288 : | {{ 6, 10}, {1, 26, 1}}, | ||
1289 : | {{ 5, 10}, {1, 27, 1}}, | ||
1290 : | {{ 4, 10}, {1, 28, 1}}, | ||
1291 : | {{36, 11}, {1, 29, 1}}, | ||
1292 : | {{37, 11}, {1, 30, 1}}, | ||
1293 : | {{38, 11}, {1, 31, 1}}, | ||
1294 : | {{39, 11}, {1, 32, 1}}, | ||
1295 : | {{88, 12}, {1, 33, 1}}, | ||
1296 : | {{89, 12}, {1, 34, 1}}, | ||
1297 : | {{90, 12}, {1, 35, 1}}, | ||
1298 : | {{91, 12}, {1, 36, 1}}, | ||
1299 : | {{92, 12}, {1, 37, 1}}, | ||
1300 : | {{93, 12}, {1, 38, 1}}, | ||
1301 : | {{94, 12}, {1, 39, 1}}, | ||
1302 : | {{95, 12}, {1, 40, 1}} | ||
1303 : | }, | ||
1304 : | /* intra = 1 */ | ||
1305 : | { | ||
1306 : | {{ 2, 2}, {0, 0, 1}}, | ||
1307 : | {{15, 4}, {0, 0, 3}}, | ||
1308 : | {{21, 6}, {0, 0, 6}}, | ||
1309 : | {{23, 7}, {0, 0, 9}}, | ||
1310 : | {{31, 8}, {0, 0, 10}}, | ||
1311 : | {{37, 9}, {0, 0, 13}}, | ||
1312 : | {{36, 9}, {0, 0, 14}}, | ||
1313 : | {{33, 10}, {0, 0, 17}}, | ||
1314 : | {{32, 10}, {0, 0, 18}}, | ||
1315 : | {{ 7, 11}, {0, 0, 21}}, | ||
1316 : | {{ 6, 11}, {0, 0, 22}}, | ||
1317 : | {{32, 11}, {0, 0, 23}}, | ||
1318 : | {{ 6, 3}, {0, 0, 2}}, | ||
1319 : | {{20, 6}, {0, 1, 2}}, | ||
1320 : | {{30, 8}, {0, 0, 11}}, | ||
1321 : | {{15, 10}, {0, 0, 19}}, | ||
1322 : | {{33, 11}, {0, 0, 24}}, | ||
1323 : | {{80, 12}, {0, 0, 25}}, | ||
1324 : | {{14, 4}, {0, 1, 1}}, | ||
1325 : | {{29, 8}, {0, 0, 12}}, | ||
1326 : | {{14, 10}, {0, 0, 20}}, | ||
1327 : | {{81, 12}, {0, 0, 26}}, | ||
1328 : | {{13, 5}, {0, 0, 4}}, | ||
1329 : | {{35, 9}, {0, 0, 15}}, | ||
1330 : | {{13, 10}, {0, 1, 7}}, | ||
1331 : | {{12, 5}, {0, 0, 5}}, | ||
1332 : | {{34, 9}, {0, 4, 2}}, | ||
1333 : | {{82, 12}, {0, 0, 27}}, | ||
1334 : | {{11, 5}, {0, 2, 1}}, | ||
1335 : | {{12, 10}, {0, 2, 4}}, | ||
1336 : | {{83, 12}, {0, 1, 9}}, | ||
1337 : | {{19, 6}, {0, 0, 7}}, | ||
1338 : | {{11, 10}, {0, 3, 4}}, | ||
1339 : | {{84, 12}, {0, 6, 3}}, | ||
1340 : | {{18, 6}, {0, 0, 8}}, | ||
1341 : | {{10, 10}, {0, 4, 3}}, | ||
1342 : | {{17, 6}, {0, 3, 1}}, | ||
1343 : | {{ 9, 10}, {0, 8, 2}}, | ||
1344 : | {{16, 6}, {0, 4, 1}}, | ||
1345 : | {{ 8, 10}, {0, 5, 3}}, | ||
1346 : | {{22, 7}, {0, 1, 3}}, | ||
1347 : | {{85, 12}, {0, 1, 10}}, | ||
1348 : | {{21, 7}, {0, 2, 2}}, | ||
1349 : | {{20, 7}, {0, 7, 1}}, | ||
1350 : | {{28, 8}, {0, 1, 4}}, | ||
1351 : | {{27, 8}, {0, 3, 2}}, | ||
1352 : | {{33, 9}, {0, 0, 16}}, | ||
1353 : | {{32, 9}, {0, 1, 5}}, | ||
1354 : | {{31, 9}, {0, 1, 6}}, | ||
1355 : | {{30, 9}, {0, 2, 3}}, | ||
1356 : | {{29, 9}, {0, 3, 3}}, | ||
1357 : | {{28, 9}, {0, 5, 2}}, | ||
1358 : | {{27, 9}, {0, 6, 2}}, | ||
1359 : | {{26, 9}, {0, 7, 2}}, | ||
1360 : | {{34, 11}, {0, 1, 8}}, | ||
1361 : | {{35, 11}, {0, 9, 2}}, | ||
1362 : | {{86, 12}, {0, 2, 5}}, | ||
1363 : | {{87, 12}, {0, 7, 3}}, | ||
1364 : | {{ 7, 4}, {1, 0, 1}}, | ||
1365 : | {{25, 9}, {0, 11, 1}}, | ||
1366 : | {{ 5, 11}, {1, 0, 6}}, | ||
1367 : | {{15, 6}, {1, 1, 1}}, | ||
1368 : | {{ 4, 11}, {1, 0, 7}}, | ||
1369 : | {{14, 6}, {1, 2, 1}}, | ||
1370 : | {{13, 6}, {0, 5, 1}}, | ||
1371 : | {{12, 6}, {1, 0, 2}}, | ||
1372 : | {{19, 7}, {1, 5, 1}}, | ||
1373 : | {{18, 7}, {0, 6, 1}}, | ||
1374 : | {{17, 7}, {1, 3, 1}}, | ||
1375 : | {{16, 7}, {1, 4, 1}}, | ||
1376 : | {{26, 8}, {1, 9, 1}}, | ||
1377 : | {{25, 8}, {0, 8, 1}}, | ||
1378 : | {{24, 8}, {0, 9, 1}}, | ||
1379 : | {{23, 8}, {0, 10, 1}}, | ||
1380 : | {{22, 8}, {1, 0, 3}}, | ||
1381 : | {{21, 8}, {1, 6, 1}}, | ||
1382 : | {{20, 8}, {1, 7, 1}}, | ||
1383 : | {{19, 8}, {1, 8, 1}}, | ||
1384 : | {{24, 9}, {0, 12, 1}}, | ||
1385 : | {{23, 9}, {1, 0, 4}}, | ||
1386 : | {{22, 9}, {1, 1, 2}}, | ||
1387 : | {{21, 9}, {1, 10, 1}}, | ||
1388 : | {{20, 9}, {1, 11, 1}}, | ||
1389 : | {{19, 9}, {1, 12, 1}}, | ||
1390 : | {{18, 9}, {1, 13, 1}}, | ||
1391 : | {{17, 9}, {1, 14, 1}}, | ||
1392 : | {{ 7, 10}, {0, 13, 1}}, | ||
1393 : | {{ 6, 10}, {1, 0, 5}}, | ||
1394 : | {{ 5, 10}, {1, 1, 3}}, | ||
1395 : | {{ 4, 10}, {1, 2, 2}}, | ||
1396 : | {{36, 11}, {1, 3, 2}}, | ||
1397 : | {{37, 11}, {1, 4, 2}}, | ||
1398 : | {{38, 11}, {1, 15, 1}}, | ||
1399 : | {{39, 11}, {1, 16, 1}}, | ||
1400 : | {{88, 12}, {0, 14, 1}}, | ||
1401 : | {{89, 12}, {1, 0, 8}}, | ||
1402 : | {{90, 12}, {1, 5, 2}}, | ||
1403 : | {{91, 12}, {1, 6, 2}}, | ||
1404 : | {{92, 12}, {1, 17, 1}}, | ||
1405 : | {{93, 12}, {1, 18, 1}}, | ||
1406 : | {{94, 12}, {1, 19, 1}}, | ||
1407 : | {{95, 12}, {1, 20, 1}} | ||
1408 : | } | ||
1409 : | }; | ||
1410 : | |||
1411 : | /* constants taken from momusys/vm_common/inlcude/max_level.h */ | ||
1412 : | uint8_t const max_level[2][2][64] = { | ||
1413 : | { | ||
1414 : | /* intra = 0, last = 0 */ | ||
1415 : | { | ||
1416 : | 12, 6, 4, 3, 3, 3, 3, 2, | ||
1417 : | 2, 2, 2, 1, 1, 1, 1, 1, | ||
1418 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1419 : | 1, 1, 1, 0, 0, 0, 0, 0, | ||
1420 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1421 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1422 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1423 : | 0, 0, 0, 0, 0, 0, 0, 0 | ||
1424 : | }, | ||
1425 : | /* intra = 0, last = 1 */ | ||
1426 : | { | ||
1427 : | 3, 2, 1, 1, 1, 1, 1, 1, | ||
1428 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1429 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1430 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1431 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1432 : | 1, 0, 0, 0, 0, 0, 0, 0, | ||
1433 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1434 : | 0, 0, 0, 0, 0, 0, 0, 0 | ||
1435 : | } | ||
1436 : | }, | ||
1437 : | { | ||
1438 : | /* intra = 1, last = 0 */ | ||
1439 : | { | ||
1440 : | 27, 10, 5, 4, 3, 3, 3, 3, | ||
1441 : | 2, 2, 1, 1, 1, 1, 1, 0, | ||
1442 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1443 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1444 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1445 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1446 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1447 : | 0, 0, 0, 0, 0, 0, 0, 0 | ||
1448 : | }, | ||
1449 : | /* intra = 1, last = 1 */ | ||
1450 : | { | ||
1451 : | 8, 3, 2, 2, 2, 2, 2, 1, | ||
1452 : | 1, 1, 1, 1, 1, 1, 1, 1, | ||
1453 : | 1, 1, 1, 1, 1, 0, 0, 0, | ||
1454 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1455 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1456 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1457 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1458 : | 0, 0, 0, 0, 0, 0, 0, 0 | ||
1459 : | } | ||
1460 : | } | ||
1461 : | }; | ||
1462 : | |||
1463 : | uint8_t const max_run[2][2][64] = { | ||
1464 : | { | ||
1465 : | /* intra = 0, last = 0 */ | ||
1466 : | { | ||
1467 : | 0, 26, 10, 6, 2, 1, 1, 0, | ||
1468 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1469 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1470 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1471 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1472 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1473 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1474 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1475 : | }, | ||
1476 : | /* intra = 0, last = 1 */ | ||
1477 : | edgomez | 1.46 | { |
1478 : | edgomez | 1.43 | 0, 40, 1, 0, 0, 0, 0, 0, |
1479 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1480 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1481 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1482 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1483 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1484 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1485 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1486 : | } | ||
1487 : | }, | ||
1488 : | { | ||
1489 : | /* intra = 1, last = 0 */ | ||
1490 : | { | ||
1491 : | 0, 14, 9, 7, 3, 2, 1, 1, | ||
1492 : | 1, 1, 1, 0, 0, 0, 0, 0, | ||
1493 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1494 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1495 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1496 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1497 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1498 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1499 : | }, | ||
1500 : | /* intra = 1, last = 1 */ | ||
1501 : | { | ||
1502 : | 0, 20, 6, 1, 0, 0, 0, 0, | ||
1503 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1504 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1505 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1506 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1507 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1508 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1509 : | 0, 0, 0, 0, 0, 0, 0, 0, | ||
1510 : | } | ||
1511 : | } | ||
1512 : | }; | ||
1513 : | |||
1514 : | /****************************************************************** | ||
1515 : | * encoder tables * | ||
1516 : | ******************************************************************/ | ||
1517 : | |||
1518 : | VLC sprite_trajectory_code[32768]; | ||
1519 : | |||
1520 : | VLC sprite_trajectory_len[15] = { | ||
1521 : | edgomez | 1.46 | { 0x00 , 2}, |
1522 : | { 0x02 , 3}, { 0x03, 3}, { 0x04, 3}, { 0x05, 3}, { 0x06, 3}, | ||
1523 : | { 0x0E , 4}, { 0x1E, 5}, { 0x3E, 6}, { 0x7E, 7}, { 0xFE, 8}, | ||
1524 : | edgomez | 1.43 | { 0x1FE, 9}, {0x3FE,10}, {0x7FE,11}, {0xFFE,12} }; |
1525 : | |||
1526 : | |||
1527 : | /* DCT coefficients. Four tables, two for last = 0, two for last = 1. | ||
1528 : | the sign bit must be added afterwards. */ | ||
1529 : | |||
1530 : | /* MCBPC Indexing by cbpc in first two bits, mode in last two. | ||
1531 : | CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10. | ||
1532 : | Example: cbpc = 01 and mode = 4 gives index = 0110 = 6. */ | ||
1533 : | |||
1534 : | VLC mcbpc_intra_tab[15] = { | ||
1535 : | {0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0}, | ||
1536 : | {0x00, 0}, {0x01, 3}, {0x01, 6}, {0x00, 0}, | ||
1537 : | {0x00, 0}, {0x02, 3}, {0x02, 6}, {0x00, 0}, | ||
1538 : | {0x00, 0}, {0x03, 3}, {0x03, 6} | ||
1539 : | }; | ||
1540 : | |||
1541 : | /* MCBPC inter. | ||
1542 : | Addressing: 5 bit ccmmm (cc = CBPC, mmm = mode (1-4 binary)) */ | ||
1543 : | |||
1544 : | VLC mcbpc_inter_tab[29] = { | ||
1545 : | {1, 1}, {3, 3}, {2, 3}, {3, 5}, {4, 6}, {1, 9}, {0, 0}, {0, 0}, | ||
1546 : | {3, 4}, {7, 7}, {5, 7}, {4, 8}, {4, 9}, {0, 0}, {0, 0}, {0, 0}, | ||
1547 : | {2, 4}, {6, 7}, {4, 7}, {3, 8}, {3, 9}, {0, 0}, {0, 0}, {0, 0}, | ||
1548 : | {5, 6}, {5, 9}, {5, 8}, {3, 7}, {2, 9} | ||
1549 : | }; | ||
1550 : | |||
1551 : | chl | 1.45 | const VLC xvid_cbpy_tab[16] = { |
1552 : | edgomez | 1.43 | {3, 4}, {5, 5}, {4, 5}, {9, 4}, {3, 5}, {7, 4}, {2, 6}, {11, 4}, |
1553 : | {2, 5}, {3, 6}, {5, 4}, {10, 4}, {4, 4}, {8, 4}, {6, 4}, {3, 2} | ||
1554 : | }; | ||
1555 : | |||
1556 : | const VLC dcy_tab[511] = { | ||
1557 : | {0x100, 15}, {0x101, 15}, {0x102, 15}, {0x103, 15}, | ||
1558 : | {0x104, 15}, {0x105, 15}, {0x106, 15}, {0x107, 15}, | ||
1559 : | {0x108, 15}, {0x109, 15}, {0x10a, 15}, {0x10b, 15}, | ||
1560 : | {0x10c, 15}, {0x10d, 15}, {0x10e, 15}, {0x10f, 15}, | ||
1561 : | {0x110, 15}, {0x111, 15}, {0x112, 15}, {0x113, 15}, | ||
1562 : | {0x114, 15}, {0x115, 15}, {0x116, 15}, {0x117, 15}, | ||
1563 : | {0x118, 15}, {0x119, 15}, {0x11a, 15}, {0x11b, 15}, | ||
1564 : | {0x11c, 15}, {0x11d, 15}, {0x11e, 15}, {0x11f, 15}, | ||
1565 : | {0x120, 15}, {0x121, 15}, {0x122, 15}, {0x123, 15}, | ||
1566 : | {0x124, 15}, {0x125, 15}, {0x126, 15}, {0x127, 15}, | ||
1567 : | {0x128, 15}, {0x129, 15}, {0x12a, 15}, {0x12b, 15}, | ||
1568 : | {0x12c, 15}, {0x12d, 15}, {0x12e, 15}, {0x12f, 15}, | ||
1569 : | {0x130, 15}, {0x131, 15}, {0x132, 15}, {0x133, 15}, | ||
1570 : | {0x134, 15}, {0x135, 15}, {0x136, 15}, {0x137, 15}, | ||
1571 : | {0x138, 15}, {0x139, 15}, {0x13a, 15}, {0x13b, 15}, | ||
1572 : | {0x13c, 15}, {0x13d, 15}, {0x13e, 15}, {0x13f, 15}, | ||
1573 : | {0x140, 15}, {0x141, 15}, {0x142, 15}, {0x143, 15}, | ||
1574 : | {0x144, 15}, {0x145, 15}, {0x146, 15}, {0x147, 15}, | ||
1575 : | {0x148, 15}, {0x149, 15}, {0x14a, 15}, {0x14b, 15}, | ||
1576 : | {0x14c, 15}, {0x14d, 15}, {0x14e, 15}, {0x14f, 15}, | ||
1577 : | {0x150, 15}, {0x151, 15}, {0x152, 15}, {0x153, 15}, | ||
1578 : | {0x154, 15}, {0x155, 15}, {0x156, 15}, {0x157, 15}, | ||
1579 : | {0x158, 15}, {0x159, 15}, {0x15a, 15}, {0x15b, 15}, | ||
1580 : | {0x15c, 15}, {0x15d, 15}, {0x15e, 15}, {0x15f, 15}, | ||
1581 : | {0x160, 15}, {0x161, 15}, {0x162, 15}, {0x163, 15}, | ||
1582 : | {0x164, 15}, {0x165, 15}, {0x166, 15}, {0x167, 15}, | ||
1583 : | {0x168, 15}, {0x169, 15}, {0x16a, 15}, {0x16b, 15}, | ||
1584 : | {0x16c, 15}, {0x16d, 15}, {0x16e, 15}, {0x16f, 15}, | ||
1585 : | {0x170, 15}, {0x171, 15}, {0x172, 15}, {0x173, 15}, | ||
1586 : | {0x174, 15}, {0x175, 15}, {0x176, 15}, {0x177, 15}, | ||
1587 : | {0x178, 15}, {0x179, 15}, {0x17a, 15}, {0x17b, 15}, | ||
1588 : | {0x17c, 15}, {0x17d, 15}, {0x17e, 15}, {0x17f, 15}, | ||
1589 : | {0x80, 13}, {0x81, 13}, {0x82, 13}, {0x83, 13}, | ||
1590 : | {0x84, 13}, {0x85, 13}, {0x86, 13}, {0x87, 13}, | ||
1591 : | {0x88, 13}, {0x89, 13}, {0x8a, 13}, {0x8b, 13}, | ||
1592 : | {0x8c, 13}, {0x8d, 13}, {0x8e, 13}, {0x8f, 13}, | ||
1593 : | {0x90, 13}, {0x91, 13}, {0x92, 13}, {0x93, 13}, | ||
1594 : | {0x94, 13}, {0x95, 13}, {0x96, 13}, {0x97, 13}, | ||
1595 : | {0x98, 13}, {0x99, 13}, {0x9a, 13}, {0x9b, 13}, | ||
1596 : | {0x9c, 13}, {0x9d, 13}, {0x9e, 13}, {0x9f, 13}, | ||
1597 : | {0xa0, 13}, {0xa1, 13}, {0xa2, 13}, {0xa3, 13}, | ||
1598 : | {0xa4, 13}, {0xa5, 13}, {0xa6, 13}, {0xa7, 13}, | ||
1599 : | {0xa8, 13}, {0xa9, 13}, {0xaa, 13}, {0xab, 13}, | ||
1600 : | {0xac, 13}, {0xad, 13}, {0xae, 13}, {0xaf, 13}, | ||
1601 : | {0xb0, 13}, {0xb1, 13}, {0xb2, 13}, {0xb3, 13}, | ||
1602 : | {0xb4, 13}, {0xb5, 13}, {0xb6, 13}, {0xb7, 13}, | ||
1603 : | {0xb8, 13}, {0xb9, 13}, {0xba, 13}, {0xbb, 13}, | ||
1604 : | {0xbc, 13}, {0xbd, 13}, {0xbe, 13}, {0xbf, 13}, | ||
1605 : | {0x40, 11}, {0x41, 11}, {0x42, 11}, {0x43, 11}, | ||
1606 : | {0x44, 11}, {0x45, 11}, {0x46, 11}, {0x47, 11}, | ||
1607 : | {0x48, 11}, {0x49, 11}, {0x4a, 11}, {0x4b, 11}, | ||
1608 : | {0x4c, 11}, {0x4d, 11}, {0x4e, 11}, {0x4f, 11}, | ||
1609 : | {0x50, 11}, {0x51, 11}, {0x52, 11}, {0x53, 11}, | ||
1610 : | {0x54, 11}, {0x55, 11}, {0x56, 11}, {0x57, 11}, | ||
1611 : | {0x58, 11}, {0x59, 11}, {0x5a, 11}, {0x5b, 11}, | ||
1612 : | {0x5c, 11}, {0x5d, 11}, {0x5e, 11}, {0x5f, 11}, | ||
1613 : | {0x20, 9}, {0x21, 9}, {0x22, 9}, {0x23, 9}, | ||
1614 : | {0x24, 9}, {0x25, 9}, {0x26, 9}, {0x27, 9}, | ||
1615 : | {0x28, 9}, {0x29, 9}, {0x2a, 9}, {0x2b, 9}, | ||
1616 : | {0x2c, 9}, {0x2d, 9}, {0x2e, 9}, {0x2f, 9}, | ||
1617 : | {0x10, 7}, {0x11, 7}, {0x12, 7}, {0x13, 7}, | ||
1618 : | {0x14, 7}, {0x15, 7}, {0x16, 7}, {0x17, 7}, | ||
1619 : | {0x10, 6}, {0x11, 6}, {0x12, 6}, {0x13, 6}, | ||
1620 : | {0x08, 4}, {0x09, 4}, {0x06, 3}, {0x03, 3}, | ||
1621 : | {0x07, 3}, {0x0a, 4}, {0x0b, 4}, {0x14, 6}, | ||
1622 : | {0x15, 6}, {0x16, 6}, {0x17, 6}, {0x18, 7}, | ||
1623 : | {0x19, 7}, {0x1a, 7}, {0x1b, 7}, {0x1c, 7}, | ||
1624 : | {0x1d, 7}, {0x1e, 7}, {0x1f, 7}, {0x30, 9}, | ||
1625 : | {0x31, 9}, {0x32, 9}, {0x33, 9}, {0x34, 9}, | ||
1626 : | {0x35, 9}, {0x36, 9}, {0x37, 9}, {0x38, 9}, | ||
1627 : | {0x39, 9}, {0x3a, 9}, {0x3b, 9}, {0x3c, 9}, | ||
1628 : | {0x3d, 9}, {0x3e, 9}, {0x3f, 9}, {0x60, 11}, | ||
1629 : | {0x61, 11}, {0x62, 11}, {0x63, 11}, {0x64, 11}, | ||
1630 : | {0x65, 11}, {0x66, 11}, {0x67, 11}, {0x68, 11}, | ||
1631 : | {0x69, 11}, {0x6a, 11}, {0x6b, 11}, {0x6c, 11}, | ||
1632 : | {0x6d, 11}, {0x6e, 11}, {0x6f, 11}, {0x70, 11}, | ||
1633 : | {0x71, 11}, {0x72, 11}, {0x73, 11}, {0x74, 11}, | ||
1634 : | {0x75, 11}, {0x76, 11}, {0x77, 11}, {0x78, 11}, | ||
1635 : | {0x79, 11}, {0x7a, 11}, {0x7b, 11}, {0x7c, 11}, | ||
1636 : | {0x7d, 11}, {0x7e, 11}, {0x7f, 11}, {0xc0, 13}, | ||
1637 : | {0xc1, 13}, {0xc2, 13}, {0xc3, 13}, {0xc4, 13}, | ||
1638 : | {0xc5, 13}, {0xc6, 13}, {0xc7, 13}, {0xc8, 13}, | ||
1639 : | {0xc9, 13}, {0xca, 13}, {0xcb, 13}, {0xcc, 13}, | ||
1640 : | {0xcd, 13}, {0xce, 13}, {0xcf, 13}, {0xd0, 13}, | ||
1641 : | {0xd1, 13}, {0xd2, 13}, {0xd3, 13}, {0xd4, 13}, | ||
1642 : | {0xd5, 13}, {0xd6, 13}, {0xd7, 13}, {0xd8, 13}, | ||
1643 : | {0xd9, 13}, {0xda, 13}, {0xdb, 13}, {0xdc, 13}, | ||
1644 : | {0xdd, 13}, {0xde, 13}, {0xdf, 13}, {0xe0, 13}, | ||
1645 : | {0xe1, 13}, {0xe2, 13}, {0xe3, 13}, {0xe4, 13}, | ||
1646 : | {0xe5, 13}, {0xe6, 13}, {0xe7, 13}, {0xe8, 13}, | ||
1647 : | {0xe9, 13}, {0xea, 13}, {0xeb, 13}, {0xec, 13}, | ||
1648 : | {0xed, 13}, {0xee, 13}, {0xef, 13}, {0xf0, 13}, | ||
1649 : | {0xf1, 13}, {0xf2, 13}, {0xf3, 13}, {0xf4, 13}, | ||
1650 : | {0xf5, 13}, {0xf6, 13}, {0xf7, 13}, {0xf8, 13}, | ||
1651 : | {0xf9, 13}, {0xfa, 13}, {0xfb, 13}, {0xfc, 13}, | ||
1652 : | {0xfd, 13}, {0xfe, 13}, {0xff, 13}, {0x180, 15}, | ||
1653 : | {0x181, 15}, {0x182, 15}, {0x183, 15}, {0x184, 15}, | ||
1654 : | {0x185, 15}, {0x186, 15}, {0x187, 15}, {0x188, 15}, | ||
1655 : | {0x189, 15}, {0x18a, 15}, {0x18b, 15}, {0x18c, 15}, | ||
1656 : | {0x18d, 15}, {0x18e, 15}, {0x18f, 15}, {0x190, 15}, | ||
1657 : | {0x191, 15}, {0x192, 15}, {0x193, 15}, {0x194, 15}, | ||
1658 : | {0x195, 15}, {0x196, 15}, {0x197, 15}, {0x198, 15}, | ||
1659 : | {0x199, 15}, {0x19a, 15}, {0x19b, 15}, {0x19c, 15}, | ||
1660 : | {0x19d, 15}, {0x19e, 15}, {0x19f, 15}, {0x1a0, 15}, | ||
1661 : | {0x1a1, 15}, {0x1a2, 15}, {0x1a3, 15}, {0x1a4, 15}, | ||
1662 : | {0x1a5, 15}, {0x1a6, 15}, {0x1a7, 15}, {0x1a8, 15}, | ||
1663 : | {0x1a9, 15}, {0x1aa, 15}, {0x1ab, 15}, {0x1ac, 15}, | ||
1664 : | {0x1ad, 15}, {0x1ae, 15}, {0x1af, 15}, {0x1b0, 15}, | ||
1665 : | {0x1b1, 15}, {0x1b2, 15}, {0x1b3, 15}, {0x1b4, 15}, | ||
1666 : | {0x1b5, 15}, {0x1b6, 15}, {0x1b7, 15}, {0x1b8, 15}, | ||
1667 : | {0x1b9, 15}, {0x1ba, 15}, {0x1bb, 15}, {0x1bc, 15}, | ||
1668 : | {0x1bd, 15}, {0x1be, 15}, {0x1bf, 15}, {0x1c0, 15}, | ||
1669 : | {0x1c1, 15}, {0x1c2, 15}, {0x1c3, 15}, {0x1c4, 15}, | ||
1670 : | {0x1c5, 15}, {0x1c6, 15}, {0x1c7, 15}, {0x1c8, 15}, | ||
1671 : | {0x1c9, 15}, {0x1ca, 15}, {0x1cb, 15}, {0x1cc, 15}, | ||
1672 : | {0x1cd, 15}, {0x1ce, 15}, {0x1cf, 15}, {0x1d0, 15}, | ||
1673 : | {0x1d1, 15}, {0x1d2, 15}, {0x1d3, 15}, {0x1d4, 15}, | ||
1674 : | {0x1d5, 15}, {0x1d6, 15}, {0x1d7, 15}, {0x1d8, 15}, | ||
1675 : | {0x1d9, 15}, {0x1da, 15}, {0x1db, 15}, {0x1dc, 15}, | ||
1676 : | {0x1dd, 15}, {0x1de, 15}, {0x1df, 15}, {0x1e0, 15}, | ||
1677 : | {0x1e1, 15}, {0x1e2, 15}, {0x1e3, 15}, {0x1e4, 15}, | ||
1678 : | {0x1e5, 15}, {0x1e6, 15}, {0x1e7, 15}, {0x1e8, 15}, | ||
1679 : | {0x1e9, 15}, {0x1ea, 15}, {0x1eb, 15}, {0x1ec, 15}, | ||
1680 : | {0x1ed, 15}, {0x1ee, 15}, {0x1ef, 15}, {0x1f0, 15}, | ||
1681 : | {0x1f1, 15}, {0x1f2, 15}, {0x1f3, 15}, {0x1f4, 15}, | ||
1682 : | {0x1f5, 15}, {0x1f6, 15}, {0x1f7, 15}, {0x1f8, 15}, | ||
1683 : | {0x1f9, 15}, {0x1fa, 15}, {0x1fb, 15}, {0x1fc, 15}, | ||
1684 : | {0x1fd, 15}, {0x1fe, 15}, {0x1ff, 15}, | ||
1685 : | }; | ||
1686 : | |||
1687 : | const VLC dcc_tab[511] = { | ||
1688 : | {0x100, 16}, {0x101, 16}, {0x102, 16}, {0x103, 16}, | ||
1689 : | {0x104, 16}, {0x105, 16}, {0x106, 16}, {0x107, 16}, | ||
1690 : | {0x108, 16}, {0x109, 16}, {0x10a, 16}, {0x10b, 16}, | ||
1691 : | {0x10c, 16}, {0x10d, 16}, {0x10e, 16}, {0x10f, 16}, | ||
1692 : | {0x110, 16}, {0x111, 16}, {0x112, 16}, {0x113, 16}, | ||
1693 : | {0x114, 16}, {0x115, 16}, {0x116, 16}, {0x117, 16}, | ||
1694 : | {0x118, 16}, {0x119, 16}, {0x11a, 16}, {0x11b, 16}, | ||
1695 : | {0x11c, 16}, {0x11d, 16}, {0x11e, 16}, {0x11f, 16}, | ||
1696 : | {0x120, 16}, {0x121, 16}, {0x122, 16}, {0x123, 16}, | ||
1697 : | {0x124, 16}, {0x125, 16}, {0x126, 16}, {0x127, 16}, | ||
1698 : | {0x128, 16}, {0x129, 16}, {0x12a, 16}, {0x12b, 16}, | ||
1699 : | {0x12c, 16}, {0x12d, 16}, {0x12e, 16}, {0x12f, 16}, | ||
1700 : | {0x130, 16}, {0x131, 16}, {0x132, 16}, {0x133, 16}, | ||
1701 : | {0x134, 16}, {0x135, 16}, {0x136, 16}, {0x137, 16}, | ||
1702 : | {0x138, 16}, {0x139, 16}, {0x13a, 16}, {0x13b, 16}, | ||
1703 : | {0x13c, 16}, {0x13d, 16}, {0x13e, 16}, {0x13f, 16}, | ||
1704 : | {0x140, 16}, {0x141, 16}, {0x142, 16}, {0x143, 16}, | ||
1705 : | {0x144, 16}, {0x145, 16}, {0x146, 16}, {0x147, 16}, | ||
1706 : | {0x148, 16}, {0x149, 16}, {0x14a, 16}, {0x14b, 16}, | ||
1707 : | {0x14c, 16}, {0x14d, 16}, {0x14e, 16}, {0x14f, 16}, | ||
1708 : | {0x150, 16}, {0x151, 16}, {0x152, 16}, {0x153, 16}, | ||
1709 : | {0x154, 16}, {0x155, 16}, {0x156, 16}, {0x157, 16}, | ||
1710 : | {0x158, 16}, {0x159, 16}, {0x15a, 16}, {0x15b, 16}, | ||
1711 : | {0x15c, 16}, {0x15d, 16}, {0x15e, 16}, {0x15f, 16}, | ||
1712 : | {0x160, 16}, {0x161, 16}, {0x162, 16}, {0x163, 16}, | ||
1713 : | {0x164, 16}, {0x165, 16}, {0x166, 16}, {0x167, 16}, | ||
1714 : | {0x168, 16}, {0x169, 16}, {0x16a, 16}, {0x16b, 16}, | ||
1715 : | {0x16c, 16}, {0x16d, 16}, {0x16e, 16}, {0x16f, 16}, | ||
1716 : | {0x170, 16}, {0x171, 16}, {0x172, 16}, {0x173, 16}, | ||
1717 : | {0x174, 16}, {0x175, 16}, {0x176, 16}, {0x177, 16}, | ||
1718 : | {0x178, 16}, {0x179, 16}, {0x17a, 16}, {0x17b, 16}, | ||
1719 : | {0x17c, 16}, {0x17d, 16}, {0x17e, 16}, {0x17f, 16}, | ||
1720 : | {0x80, 14}, {0x81, 14}, {0x82, 14}, {0x83, 14}, | ||
1721 : | {0x84, 14}, {0x85, 14}, {0x86, 14}, {0x87, 14}, | ||
1722 : | {0x88, 14}, {0x89, 14}, {0x8a, 14}, {0x8b, 14}, | ||
1723 : | {0x8c, 14}, {0x8d, 14}, {0x8e, 14}, {0x8f, 14}, | ||
1724 : | {0x90, 14}, {0x91, 14}, {0x92, 14}, {0x93, 14}, | ||
1725 : | {0x94, 14}, {0x95, 14}, {0x96, 14}, {0x97, 14}, | ||
1726 : | {0x98, 14}, {0x99, 14}, {0x9a, 14}, {0x9b, 14}, | ||
1727 : | {0x9c, 14}, {0x9d, 14}, {0x9e, 14}, {0x9f, 14}, | ||
1728 : | {0xa0, 14}, {0xa1, 14}, {0xa2, 14}, {0xa3, 14}, | ||
1729 : | {0xa4, 14}, {0xa5, 14}, {0xa6, 14}, {0xa7, 14}, | ||
1730 : | {0xa8, 14}, {0xa9, 14}, {0xaa, 14}, {0xab, 14}, | ||
1731 : | {0xac, 14}, {0xad, 14}, {0xae, 14}, {0xaf, 14}, | ||
1732 : | {0xb0, 14}, {0xb1, 14}, {0xb2, 14}, {0xb3, 14}, | ||
1733 : | {0xb4, 14}, {0xb5, 14}, {0xb6, 14}, {0xb7, 14}, | ||
1734 : | {0xb8, 14}, {0xb9, 14}, {0xba, 14}, {0xbb, 14}, | ||
1735 : | {0xbc, 14}, {0xbd, 14}, {0xbe, 14}, {0xbf, 14}, | ||
1736 : | {0x40, 12}, {0x41, 12}, {0x42, 12}, {0x43, 12}, | ||
1737 : | {0x44, 12}, {0x45, 12}, {0x46, 12}, {0x47, 12}, | ||
1738 : | {0x48, 12}, {0x49, 12}, {0x4a, 12}, {0x4b, 12}, | ||
1739 : | {0x4c, 12}, {0x4d, 12}, {0x4e, 12}, {0x4f, 12}, | ||
1740 : | {0x50, 12}, {0x51, 12}, {0x52, 12}, {0x53, 12}, | ||
1741 : | {0x54, 12}, {0x55, 12}, {0x56, 12}, {0x57, 12}, | ||
1742 : | {0x58, 12}, {0x59, 12}, {0x5a, 12}, {0x5b, 12}, | ||
1743 : | {0x5c, 12}, {0x5d, 12}, {0x5e, 12}, {0x5f, 12}, | ||
1744 : | {0x20, 10}, {0x21, 10}, {0x22, 10}, {0x23, 10}, | ||
1745 : | {0x24, 10}, {0x25, 10}, {0x26, 10}, {0x27, 10}, | ||
1746 : | {0x28, 10}, {0x29, 10}, {0x2a, 10}, {0x2b, 10}, | ||
1747 : | {0x2c, 10}, {0x2d, 10}, {0x2e, 10}, {0x2f, 10}, | ||
1748 : | {0x10, 8}, {0x11, 8}, {0x12, 8}, {0x13, 8}, | ||
1749 : | {0x14, 8}, {0x15, 8}, {0x16, 8}, {0x17, 8}, | ||
1750 : | {0x08, 6}, {0x09, 6}, {0x0a, 6}, {0x0b, 6}, | ||
1751 : | {0x04, 4}, {0x05, 4}, {0x04, 3}, {0x03, 2}, | ||
1752 : | {0x05, 3}, {0x06, 4}, {0x07, 4}, {0x0c, 6}, | ||
1753 : | {0x0d, 6}, {0x0e, 6}, {0x0f, 6}, {0x18, 8}, | ||
1754 : | {0x19, 8}, {0x1a, 8}, {0x1b, 8}, {0x1c, 8}, | ||
1755 : | {0x1d, 8}, {0x1e, 8}, {0x1f, 8}, {0x30, 10}, | ||
1756 : | {0x31, 10}, {0x32, 10}, {0x33, 10}, {0x34, 10}, | ||
1757 : | {0x35, 10}, {0x36, 10}, {0x37, 10}, {0x38, 10}, | ||
1758 : | {0x39, 10}, {0x3a, 10}, {0x3b, 10}, {0x3c, 10}, | ||
1759 : | {0x3d, 10}, {0x3e, 10}, {0x3f, 10}, {0x60, 12}, | ||
1760 : | {0x61, 12}, {0x62, 12}, {0x63, 12}, {0x64, 12}, | ||
1761 : | {0x65, 12}, {0x66, 12}, {0x67, 12}, {0x68, 12}, | ||
1762 : | {0x69, 12}, {0x6a, 12}, {0x6b, 12}, {0x6c, 12}, | ||
1763 : | {0x6d, 12}, {0x6e, 12}, {0x6f, 12}, {0x70, 12}, | ||
1764 : | {0x71, 12}, {0x72, 12}, {0x73, 12}, {0x74, 12}, | ||
1765 : | {0x75, 12}, {0x76, 12}, {0x77, 12}, {0x78, 12}, | ||
1766 : | {0x79, 12}, {0x7a, 12}, {0x7b, 12}, {0x7c, 12}, | ||
1767 : | {0x7d, 12}, {0x7e, 12}, {0x7f, 12}, {0xc0, 14}, | ||
1768 : | {0xc1, 14}, {0xc2, 14}, {0xc3, 14}, {0xc4, 14}, | ||
1769 : | {0xc5, 14}, {0xc6, 14}, {0xc7, 14}, {0xc8, 14}, | ||
1770 : | {0xc9, 14}, {0xca, 14}, {0xcb, 14}, {0xcc, 14}, | ||
1771 : | {0xcd, 14}, {0xce, 14}, {0xcf, 14}, {0xd0, 14}, | ||
1772 : | {0xd1, 14}, {0xd2, 14}, {0xd3, 14}, {0xd4, 14}, | ||
1773 : | {0xd5, 14}, {0xd6, 14}, {0xd7, 14}, {0xd8, 14}, | ||
1774 : | {0xd9, 14}, {0xda, 14}, {0xdb, 14}, {0xdc, 14}, | ||
1775 : | {0xdd, 14}, {0xde, 14}, {0xdf, 14}, {0xe0, 14}, | ||
1776 : | {0xe1, 14}, {0xe2, 14}, {0xe3, 14}, {0xe4, 14}, | ||
1777 : | {0xe5, 14}, {0xe6, 14}, {0xe7, 14}, {0xe8, 14}, | ||
1778 : | {0xe9, 14}, {0xea, 14}, {0xeb, 14}, {0xec, 14}, | ||
1779 : | {0xed, 14}, {0xee, 14}, {0xef, 14}, {0xf0, 14}, | ||
1780 : | {0xf1, 14}, {0xf2, 14}, {0xf3, 14}, {0xf4, 14}, | ||
1781 : | {0xf5, 14}, {0xf6, 14}, {0xf7, 14}, {0xf8, 14}, | ||
1782 : | {0xf9, 14}, {0xfa, 14}, {0xfb, 14}, {0xfc, 14}, | ||
1783 : | {0xfd, 14}, {0xfe, 14}, {0xff, 14}, {0x180, 16}, | ||
1784 : | {0x181, 16}, {0x182, 16}, {0x183, 16}, {0x184, 16}, | ||
1785 : | {0x185, 16}, {0x186, 16}, {0x187, 16}, {0x188, 16}, | ||
1786 : | {0x189, 16}, {0x18a, 16}, {0x18b, 16}, {0x18c, 16}, | ||
1787 : | {0x18d, 16}, {0x18e, 16}, {0x18f, 16}, {0x190, 16}, | ||
1788 : | {0x191, 16}, {0x192, 16}, {0x193, 16}, {0x194, 16}, | ||
1789 : | {0x195, 16}, {0x196, 16}, {0x197, 16}, {0x198, 16}, | ||
1790 : | {0x199, 16}, {0x19a, 16}, {0x19b, 16}, {0x19c, 16}, | ||
1791 : | {0x19d, 16}, {0x19e, 16}, {0x19f, 16}, {0x1a0, 16}, | ||
1792 : | {0x1a1, 16}, {0x1a2, 16}, {0x1a3, 16}, {0x1a4, 16}, | ||
1793 : | {0x1a5, 16}, {0x1a6, 16}, {0x1a7, 16}, {0x1a8, 16}, | ||
1794 : | {0x1a9, 16}, {0x1aa, 16}, {0x1ab, 16}, {0x1ac, 16}, | ||
1795 : | {0x1ad, 16}, {0x1ae, 16}, {0x1af, 16}, {0x1b0, 16}, | ||
1796 : | {0x1b1, 16}, {0x1b2, 16}, {0x1b3, 16}, {0x1b4, 16}, | ||
1797 : | {0x1b5, 16}, {0x1b6, 16}, {0x1b7, 16}, {0x1b8, 16}, | ||
1798 : | {0x1b9, 16}, {0x1ba, 16}, {0x1bb, 16}, {0x1bc, 16}, | ||
1799 : | {0x1bd, 16}, {0x1be, 16}, {0x1bf, 16}, {0x1c0, 16}, | ||
1800 : | {0x1c1, 16}, {0x1c2, 16}, {0x1c3, 16}, {0x1c4, 16}, | ||
1801 : | {0x1c5, 16}, {0x1c6, 16}, {0x1c7, 16}, {0x1c8, 16}, | ||
1802 : | {0x1c9, 16}, {0x1ca, 16}, {0x1cb, 16}, {0x1cc, 16}, | ||
1803 : | {0x1cd, 16}, {0x1ce, 16}, {0x1cf, 16}, {0x1d0, 16}, | ||
1804 : | {0x1d1, 16}, {0x1d2, 16}, {0x1d3, 16}, {0x1d4, 16}, | ||
1805 : | {0x1d5, 16}, {0x1d6, 16}, {0x1d7, 16}, {0x1d8, 16}, | ||
1806 : | {0x1d9, 16}, {0x1da, 16}, {0x1db, 16}, {0x1dc, 16}, | ||
1807 : | {0x1dd, 16}, {0x1de, 16}, {0x1df, 16}, {0x1e0, 16}, | ||
1808 : | {0x1e1, 16}, {0x1e2, 16}, {0x1e3, 16}, {0x1e4, 16}, | ||
1809 : | {0x1e5, 16}, {0x1e6, 16}, {0x1e7, 16}, {0x1e8, 16}, | ||
1810 : | {0x1e9, 16}, {0x1ea, 16}, {0x1eb, 16}, {0x1ec, 16}, | ||
1811 : | {0x1ed, 16}, {0x1ee, 16}, {0x1ef, 16}, {0x1f0, 16}, | ||
1812 : | {0x1f1, 16}, {0x1f2, 16}, {0x1f3, 16}, {0x1f4, 16}, | ||
1813 : | {0x1f5, 16}, {0x1f6, 16}, {0x1f7, 16}, {0x1f8, 16}, | ||
1814 : | {0x1f9, 16}, {0x1fa, 16}, {0x1fb, 16}, {0x1fc, 16}, | ||
1815 : | {0x1fd, 16}, {0x1fe, 16}, {0x1ff, 16}, | ||
1816 : | }; | ||
1817 : | |||
1818 : | |||
1819 : | const VLC mb_motion_table[65] = { | ||
1820 : | {0x05, 13}, {0x07, 13}, {0x05, 12}, {0x07, 12}, | ||
1821 : | {0x09, 12}, {0x0b, 12}, {0x0d, 12}, {0x0f, 12}, | ||
1822 : | {0x09, 11}, {0x0b, 11}, {0x0d, 11}, {0x0f, 11}, | ||
1823 : | {0x11, 11}, {0x13, 11}, {0x15, 11}, {0x17, 11}, | ||
1824 : | {0x19, 11}, {0x1b, 11}, {0x1d, 11}, {0x1f, 11}, | ||
1825 : | {0x21, 11}, {0x23, 11}, {0x13, 10}, {0x15, 10}, | ||
1826 : | {0x17, 10}, {0x07, 8}, {0x09, 8}, {0x0b, 8}, | ||
1827 : | {0x07, 7}, {0x03, 5}, {0x03, 4}, {0x03, 3}, | ||
1828 : | {0x01, 1}, {0x02, 3}, {0x02, 4}, {0x02, 5}, | ||
1829 : | {0x06, 7}, {0x0a, 8}, {0x08, 8}, {0x06, 8}, | ||
1830 : | {0x16, 10}, {0x14, 10}, {0x12, 10}, {0x22, 11}, | ||
1831 : | {0x20, 11}, {0x1e, 11}, {0x1c, 11}, {0x1a, 11}, | ||
1832 : | {0x18, 11}, {0x16, 11}, {0x14, 11}, {0x12, 11}, | ||
1833 : | {0x10, 11}, {0x0e, 11}, {0x0c, 11}, {0x0a, 11}, | ||
1834 : | {0x08, 11}, {0x0e, 12}, {0x0c, 12}, {0x0a, 12}, | ||
1835 : | {0x08, 12}, {0x06, 12}, {0x04, 12}, {0x06, 13}, | ||
1836 : | {0x04, 13} | ||
1837 : | }; | ||
1838 : | |||
1839 : | |||
1840 : | /****************************************************************** | ||
1841 : | * decoder tables * | ||
1842 : | ******************************************************************/ | ||
1843 : | |||
1844 : | VLC const mcbpc_intra_table[64] = { | ||
1845 : | {-1, 0}, {20, 6}, {36, 6}, {52, 6}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, | ||
1846 : | {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, | ||
1847 : | {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, | ||
1848 : | {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, | ||
1849 : | {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, | ||
1850 : | {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, | ||
1851 : | {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, | ||
1852 : | {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1} | ||
1853 : | }; | ||
1854 : | |||
1855 : | VLC const mcbpc_inter_table[257] = { | ||
1856 : | {VLC_ERROR, 0}, {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8}, | ||
1857 : | {19, 8}, {19, 8}, {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7}, | ||
1858 : | {34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, | ||
1859 : | {33, 7}, {33, 7}, {33, 7}, {33, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, | ||
1860 : | {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, | ||
1861 : | {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, | ||
1862 : | {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, | ||
1863 : | {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, | ||
1864 : | {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, | ||
1865 : | {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, | ||
1866 : | {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, | ||
1867 : | {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, | ||
1868 : | {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, | ||
1869 : | {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, | ||
1870 : | {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, | ||
1871 : | {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, | ||
1872 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1873 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1874 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1875 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1876 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1877 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1878 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1879 : | {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, | ||
1880 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1881 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1882 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1883 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1884 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1885 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1886 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1887 : | {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, | ||
1888 : | {0, 1} | ||
1889 : | }; | ||
1890 : | |||
1891 : | VLC const cbpy_table[64] = { | ||
1892 : | {-1, 0}, {-1, 0}, {6, 6}, {9, 6}, {8, 5}, {8, 5}, {4, 5}, {4, 5}, | ||
1893 : | {2, 5}, {2, 5}, {1, 5}, {1, 5}, {0, 4}, {0, 4}, {0, 4}, {0, 4}, | ||
1894 : | {12, 4}, {12, 4}, {12, 4}, {12, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, | ||
1895 : | {14, 4}, {14, 4}, {14, 4}, {14, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, | ||
1896 : | {13, 4}, {13, 4}, {13, 4}, {13, 4}, {3, 4}, {3, 4}, {3, 4}, {3, 4}, | ||
1897 : | {11, 4}, {11, 4}, {11, 4}, {11, 4}, {7, 4}, {7, 4}, {7, 4}, {7, 4}, | ||
1898 : | {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, | ||
1899 : | {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2} | ||
1900 : | }; | ||
1901 : | |||
1902 : | VLC const TMNMVtab0[] = { | ||
1903 : | {3, 4}, {-3, 4}, {2, 3}, {2, 3}, {-2, 3}, {-2, 3}, {1, 2}, | ||
1904 : | {1, 2}, {1, 2}, {1, 2}, {-1, 2}, {-1, 2}, {-1, 2}, {-1, 2} | ||
1905 : | }; | ||
1906 : | |||
1907 : | VLC const TMNMVtab1[] = { | ||
1908 : | {12, 10}, {-12, 10}, {11, 10}, {-11, 10}, | ||
1909 : | {10, 9}, {10, 9}, {-10, 9}, {-10, 9}, | ||
1910 : | {9, 9}, {9, 9}, {-9, 9}, {-9, 9}, | ||
1911 : | {8, 9}, {8, 9}, {-8, 9}, {-8, 9}, | ||
1912 : | {7, 7}, {7, 7}, {7, 7}, {7, 7}, | ||
1913 : | {7, 7}, {7, 7}, {7, 7}, {7, 7}, | ||
1914 : | {-7, 7}, {-7, 7}, {-7, 7}, {-7, 7}, | ||
1915 : | {-7, 7}, {-7, 7}, {-7, 7}, {-7, 7}, | ||
1916 : | {6, 7}, {6, 7}, {6, 7}, {6, 7}, | ||
1917 : | {6, 7}, {6, 7}, {6, 7}, {6, 7}, | ||
1918 : | {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, | ||
1919 : | {-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, | ||
1920 : | {5, 7}, {5, 7}, {5, 7}, {5, 7}, | ||
1921 : | {5, 7}, {5, 7}, {5, 7}, {5, 7}, | ||
1922 : | {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, | ||
1923 : | {-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, | ||
1924 : | {4, 6}, {4, 6}, {4, 6}, {4, 6}, | ||
1925 : | {4, 6}, {4, 6}, {4, 6}, {4, 6}, | ||
1926 : | {4, 6}, {4, 6}, {4, 6}, {4, 6}, | ||
1927 : | {4, 6}, {4, 6}, {4, 6}, {4, 6}, | ||
1928 : | {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, | ||
1929 : | {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, | ||
1930 : | {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, | ||
1931 : | {-4, 6}, {-4, 6}, {-4, 6}, {-4, 6} | ||
1932 : | }; | ||
1933 : | |||
1934 : | VLC const TMNMVtab2[] = { | ||
1935 : | {32, 12}, {-32, 12}, {31, 12}, {-31, 12}, | ||
1936 : | {30, 11}, {30, 11}, {-30, 11}, {-30, 11}, | ||
1937 : | {29, 11}, {29, 11}, {-29, 11}, {-29, 11}, | ||
1938 : | {28, 11}, {28, 11}, {-28, 11}, {-28, 11}, | ||
1939 : | {27, 11}, {27, 11}, {-27, 11}, {-27, 11}, | ||
1940 : | {26, 11}, {26, 11}, {-26, 11}, {-26, 11}, | ||
1941 : | {25, 11}, {25, 11}, {-25, 11}, {-25, 11}, | ||
1942 : | {24, 10}, {24, 10}, {24, 10}, {24, 10}, | ||
1943 : | {-24, 10}, {-24, 10}, {-24, 10}, {-24, 10}, | ||
1944 : | {23, 10}, {23, 10}, {23, 10}, {23, 10}, | ||
1945 : | {-23, 10}, {-23, 10}, {-23, 10}, {-23, 10}, | ||
1946 : | {22, 10}, {22, 10}, {22, 10}, {22, 10}, | ||
1947 : | {-22, 10}, {-22, 10}, {-22, 10}, {-22, 10}, | ||
1948 : | {21, 10}, {21, 10}, {21, 10}, {21, 10}, | ||
1949 : | {-21, 10}, {-21, 10}, {-21, 10}, {-21, 10}, | ||
1950 : | {20, 10}, {20, 10}, {20, 10}, {20, 10}, | ||
1951 : | {-20, 10}, {-20, 10}, {-20, 10}, {-20, 10}, | ||
1952 : | {19, 10}, {19, 10}, {19, 10}, {19, 10}, | ||
1953 : | {-19, 10}, {-19, 10}, {-19, 10}, {-19, 10}, | ||
1954 : | {18, 10}, {18, 10}, {18, 10}, {18, 10}, | ||
1955 : | {-18, 10}, {-18, 10}, {-18, 10}, {-18, 10}, | ||
1956 : | {17, 10}, {17, 10}, {17, 10}, {17, 10}, | ||
1957 : | {-17, 10}, {-17, 10}, {-17, 10}, {-17, 10}, | ||
1958 : | {16, 10}, {16, 10}, {16, 10}, {16, 10}, | ||
1959 : | {-16, 10}, {-16, 10}, {-16, 10}, {-16, 10}, | ||
1960 : | {15, 10}, {15, 10}, {15, 10}, {15, 10}, | ||
1961 : | {-15, 10}, {-15, 10}, {-15, 10}, {-15, 10}, | ||
1962 : | {14, 10}, {14, 10}, {14, 10}, {14, 10}, | ||
1963 : | {-14, 10}, {-14, 10}, {-14, 10}, {-14, 10}, | ||
1964 : | {13, 10}, {13, 10}, {13, 10}, {13, 10}, | ||
1965 : | {-13, 10}, {-13, 10}, {-13, 10}, {-13, 10} | ||
1966 : | }; | ||
1967 : | |||
1968 : | short const dc_threshold[] = { | ||
1969 : | edgomez | 1.51 | 26708, 29545, 29472, 26223, 30580, 29281, 8293, 29545, |
1970 : | 25632, 29285, 30313, 25701, 26144, 28530, 8301, 26740, | ||
1971 : | 8293, 20039, 8277, 20551, 8268, 30296, 17513, 25376, | ||
1972 : | 25711, 25445, 10272, 11825, 11825, 10544, 2606, 28505, | ||
1973 : | 29301, 29472, 26223, 30580, 29281, 8293, 26980, 29811, | ||
1974 : | 26994, 30050, 28532, 8306, 24936, 8307, 28532, 26400, | ||
1975 : | 30313, 8293, 25441, 25955, 29555, 29728, 8303, 29801, | ||
1976 : | 8307, 28531, 29301, 25955, 25376, 25711, 11877, 10 | ||
1977 : | edgomez | 1.43 | }; |
1978 : | |||
1979 : | VLC const dc_lum_tab[] = { | ||
1980 : | {0, 0}, {4, 3}, {3, 3}, {0, 3}, | ||
1981 : | {2, 2}, {2, 2}, {1, 2}, {1, 2}, | ||
1982 : | }; |
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