1 |
|
/***************************************************************************** |
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 |
|
* $Id$ |
23 |
|
* |
24 |
|
****************************************************************************/ |
25 |
|
|
26 |
|
#include <stdio.h> |
27 |
|
#include <stdlib.h> |
28 |
|
#include <string.h> |
29 |
|
|
30 |
#include "../portab.h" |
#include "../portab.h" |
31 |
|
#include "../global.h" |
32 |
#include "bitstream.h" |
#include "bitstream.h" |
33 |
#include "zigzag.h" |
#include "zigzag.h" |
34 |
#include "vlc_codes.h" |
#include "vlc_codes.h" |
35 |
|
#include "mbcoding.h" |
36 |
|
|
37 |
#include "../utils/mbfunctions.h" |
#include "../utils/mbfunctions.h" |
38 |
|
|
39 |
#include <stdlib.h> /* malloc, free */ |
#ifdef _DEBUG |
40 |
|
# include "../motion/estimation.h" |
41 |
|
# include "../motion/motion_inlines.h" |
42 |
|
# include <assert.h> |
43 |
|
#endif |
44 |
|
|
|
#define ESCAPE 7167 |
|
|
#define ABS(X) (((X)>0)?(X):-(X)) |
|
|
#define CLIP(X,A) (X > A) ? (A) : (X) |
|
45 |
|
|
46 |
static VLC *DCT3D[2]; |
#define LEVELOFFSET 32 |
47 |
|
|
48 |
VLC *intra_table, *inter_table; |
/* Initialized once during xvid_global call |
49 |
static short clip_table[4096]; |
* RO access is thread safe */ |
50 |
|
static REVERSE_EVENT DCT3D[2][4096]; |
51 |
|
static VLC coeff_VLC[2][2][64][64]; |
52 |
|
|
53 |
void create_vlc_tables(void) |
/* not really MB related, but VLCs are only available here */ |
54 |
|
void bs_put_spritetrajectory(Bitstream * bs, const int val) |
55 |
{ |
{ |
56 |
int32_t k, l, i, intra, last; |
const int code = sprite_trajectory_code[val+16384].code; |
57 |
VLC *vlc[2]; |
const int len = sprite_trajectory_code[val+16384].len; |
58 |
VLC **coeff_ptr; |
const int code2 = sprite_trajectory_len[len].code; |
59 |
VLC *vlc1, *vlc2; |
const int len2 = sprite_trajectory_len[len].len; |
|
|
|
|
VLC *DCT3Dintra; |
|
|
VLC *DCT3Dinter; |
|
|
|
|
|
DCT3Dintra = (VLC *) malloc(sizeof(VLC) * 4096); |
|
|
DCT3Dinter = (VLC *) malloc(sizeof(VLC) * 4096); |
|
60 |
|
|
61 |
vlc1 = DCT3Dintra; |
#if 0 |
62 |
vlc2 = DCT3Dinter; |
printf("GMC=%d Code/Len = %d / %d ",val, code,len); |
63 |
|
printf("Code2 / Len2 = %d / %d \n",code2,len2); |
64 |
|
#endif |
65 |
|
|
66 |
vlc[0] = intra_table = (VLC *) malloc(128 * 511 * sizeof(VLC)); |
BitstreamPutBits(bs, code2, len2); |
67 |
vlc[1] = inter_table = (VLC *) malloc(128 * 511 * sizeof(VLC)); |
if (len) BitstreamPutBits(bs, code, len); |
|
|
|
|
// initialize the clipping table |
|
|
for(i = -2048; i < 2048; i++) { |
|
|
clip_table[i + 2048] = i; |
|
|
if(i < -255) |
|
|
clip_table[i + 2048] = -255; |
|
|
if(i > 255) |
|
|
clip_table[i + 2048] = 255; |
|
68 |
} |
} |
69 |
|
|
70 |
// generate intra/inter vlc lookup table |
int bs_get_spritetrajectory(Bitstream * bs) |
71 |
for(i = 0; i < 4; i++) { |
{ |
72 |
intra = i % 2; |
int i; |
73 |
last = i >> 1; |
for (i = 0; i < 12; i++) |
74 |
|
{ |
75 |
coeff_ptr = coeff_vlc[last + (intra << 1)]; |
if (BitstreamShowBits(bs, sprite_trajectory_len[i].len) == sprite_trajectory_len[i].code) |
76 |
|
{ |
77 |
for(k = -255; k < 256; k++) { // level |
BitstreamSkip(bs, sprite_trajectory_len[i].len); |
78 |
char *max_level_ptr = max_level[last + (intra << 1)]; |
return i; |
79 |
char *max_run_ptr = max_run[last + (intra << 1)]; |
} |
80 |
|
} |
81 |
|
return -1; |
82 |
|
} |
83 |
|
|
84 |
for(l = 0; l < 64; l++) { // run |
void |
85 |
int32_t level = k, run = l; |
init_vlc_tables(void) |
86 |
|
{ |
87 |
|
uint32_t i, j, k, intra, last, run, run_esc, level, level_esc, escape, escape_len, offset; |
88 |
|
int32_t l; |
89 |
|
|
90 |
if(abs(level) <= max_level_ptr[run] && run <= max_run_ptr[abs(level)]) { |
for (intra = 0; intra < 2; intra++) |
91 |
|
for (i = 0; i < 4096; i++) |
92 |
|
DCT3D[intra][i].event.level = 0; |
93 |
|
|
94 |
if(level > 0) { |
for (intra = 0; intra < 2; intra++) { |
95 |
vlc[intra]->code = (coeff_ptr[run][level - 1].code) << 1; |
for (last = 0; last < 2; last++) { |
96 |
vlc[intra]->len = coeff_ptr[run][level - 1].len + 1; |
for (run = 0; run < 63 + last; run++) { |
97 |
|
for (level = 0; level < (uint32_t)(32 << intra); level++) { |
98 |
|
offset = !intra * LEVELOFFSET; |
99 |
|
coeff_VLC[intra][last][level + offset][run].len = 128; |
100 |
|
} |
101 |
} |
} |
|
else if(level < 0) { |
|
|
vlc[intra]->code = ((coeff_ptr[run][-level - 1].code) << 1) + 1; |
|
|
vlc[intra]->len = coeff_ptr[run][-level - 1].len + 1; |
|
102 |
} |
} |
|
else { |
|
|
vlc[intra]->code = 0; |
|
|
vlc[intra]->len = 0; |
|
103 |
} |
} |
|
} else { |
|
|
if(level > 0) |
|
|
level -= max_level_ptr[run]; |
|
|
else |
|
|
level += max_level_ptr[run]; |
|
104 |
|
|
105 |
if(abs(level) <= max_level_ptr[run] && |
for (intra = 0; intra < 2; intra++) { |
106 |
run <= max_run_ptr[abs(level)]) { |
for (i = 0; i < 102; i++) { |
107 |
|
offset = !intra * LEVELOFFSET; |
108 |
|
|
109 |
if(level > 0) { |
for (j = 0; j < (uint32_t)(1 << (12 - coeff_tab[intra][i].vlc.len)); j++) { |
110 |
vlc[intra]->code = (0x06 << (coeff_ptr[run][level - 1].len + 1)) | |
DCT3D[intra][(coeff_tab[intra][i].vlc.code << (12 - coeff_tab[intra][i].vlc.len)) | j].len = coeff_tab[intra][i].vlc.len; |
111 |
(coeff_ptr[run][level - 1].code << 1); |
DCT3D[intra][(coeff_tab[intra][i].vlc.code << (12 - coeff_tab[intra][i].vlc.len)) | j].event = coeff_tab[intra][i].event; |
|
vlc[intra]->len = (coeff_ptr[run][level - 1].len + 1) + 8; |
|
|
} |
|
|
else if(level < 0) { |
|
|
vlc[intra]->code = (0x06 << (coeff_ptr[run][-level - 1].len + 1)) | |
|
|
((coeff_ptr[run][-level - 1].code << 1) + 1); |
|
|
vlc[intra]->len = (coeff_ptr[run][-level - 1].len + 1) + 8; |
|
|
} |
|
|
else { |
|
|
vlc[intra]->code = 0x06; |
|
|
vlc[intra]->len = 8; |
|
112 |
} |
} |
|
} else { |
|
|
if(level > 0) |
|
|
level += max_level_ptr[run]; |
|
|
else |
|
|
level -= max_level_ptr[run]; |
|
|
DEBUG1("1) run:", run); |
|
|
run -= max_run_ptr[abs(level)] + 1; |
|
|
DEBUG1("2) run:", run); |
|
|
|
|
|
if(abs(level) <= max_level_ptr[run] && |
|
|
run <= max_run_ptr[abs(level)]) { |
|
|
|
|
|
if(level > 0) { |
|
|
vlc[intra]->code = (0x0e << (coeff_ptr[run][level - 1].len + 1)) | |
|
|
(coeff_ptr[run][level - 1].code << 1); |
|
|
vlc[intra]->len = (coeff_ptr[run][level - 1].len + 1) + 9; |
|
|
} |
|
|
else if(level < 0) { |
|
|
vlc[intra]->code = (0x0e << (coeff_ptr[run][-level - 1].len + 1)) | |
|
|
((coeff_ptr[run][-level - 1].code << 1) + 1); |
|
|
vlc[intra]->len = (coeff_ptr[run][-level - 1].len + 1) + 9; |
|
|
} |
|
|
else { |
|
|
vlc[intra]->code = 0x0e; |
|
|
vlc[intra]->len = 9; |
|
|
} |
|
|
} else { |
|
|
if(level != 0) |
|
|
run += max_run_ptr[abs(level)] + 1; |
|
|
else |
|
|
run++; |
|
|
|
|
|
DEBUG1("3) run:", run); |
|
113 |
|
|
114 |
vlc[intra]->code = (uint32_t) ((0x1e + last) << 20) | |
coeff_VLC[intra][coeff_tab[intra][i].event.last][coeff_tab[intra][i].event.level + offset][coeff_tab[intra][i].event.run].code |
115 |
(l << 14) | (1 << 13) | ((k & 0xfff) << 1) | 1; |
= coeff_tab[intra][i].vlc.code << 1; |
116 |
|
coeff_VLC[intra][coeff_tab[intra][i].event.last][coeff_tab[intra][i].event.level + offset][coeff_tab[intra][i].event.run].len |
117 |
|
= coeff_tab[intra][i].vlc.len + 1; |
118 |
|
|
119 |
vlc[intra]->len = 30; |
if (!intra) { |
120 |
} |
coeff_VLC[intra][coeff_tab[intra][i].event.last][offset - coeff_tab[intra][i].event.level][coeff_tab[intra][i].event.run].code |
121 |
|
= (coeff_tab[intra][i].vlc.code << 1) | 1; |
122 |
|
coeff_VLC[intra][coeff_tab[intra][i].event.last][offset - coeff_tab[intra][i].event.level][coeff_tab[intra][i].event.run].len |
123 |
|
= coeff_tab[intra][i].vlc.len + 1; |
124 |
} |
} |
125 |
} |
} |
|
vlc[intra]++; |
|
126 |
} |
} |
127 |
|
|
128 |
|
for (intra = 0; intra < 2; intra++) { |
129 |
|
for (last = 0; last < 2; last++) { |
130 |
|
for (run = 0; run < 63 + last; run++) { |
131 |
|
for (level = 1; level < (uint32_t)(32 << intra); level++) { |
132 |
|
|
133 |
|
if (level <= max_level[intra][last][run] && run <= max_run[intra][last][level]) |
134 |
|
continue; |
135 |
|
|
136 |
|
offset = !intra * LEVELOFFSET; |
137 |
|
level_esc = level - max_level[intra][last][run]; |
138 |
|
run_esc = run - 1 - max_run[intra][last][level]; |
139 |
|
|
140 |
|
if (level_esc <= max_level[intra][last][run] && run <= max_run[intra][last][level_esc]) { |
141 |
|
escape = ESCAPE1; |
142 |
|
escape_len = 7 + 1; |
143 |
|
run_esc = run; |
144 |
|
} else { |
145 |
|
if (run_esc <= max_run[intra][last][level] && level <= max_level[intra][last][run_esc]) { |
146 |
|
escape = ESCAPE2; |
147 |
|
escape_len = 7 + 2; |
148 |
|
level_esc = level; |
149 |
|
} else { |
150 |
|
if (!intra) { |
151 |
|
coeff_VLC[intra][last][level + offset][run].code |
152 |
|
= (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((level & 0xfff) << 1) | 1; |
153 |
|
coeff_VLC[intra][last][level + offset][run].len = 30; |
154 |
|
coeff_VLC[intra][last][offset - level][run].code |
155 |
|
= (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((-(int32_t)level & 0xfff) << 1) | 1; |
156 |
|
coeff_VLC[intra][last][offset - level][run].len = 30; |
157 |
|
} |
158 |
|
continue; |
159 |
} |
} |
160 |
} |
} |
|
intra_table += 64*255; // center vlc tables |
|
|
inter_table += 64*255; // center vlc tables |
|
161 |
|
|
162 |
for(i = 0; i < 4096; i++) { |
coeff_VLC[intra][last][level + offset][run].code |
163 |
if(i >= 512) { |
= (escape << coeff_VLC[intra][last][level_esc + offset][run_esc].len) |
164 |
*vlc1 = DCT3Dtab3[(i >> 5) - 16]; |
| coeff_VLC[intra][last][level_esc + offset][run_esc].code; |
165 |
*vlc2 = DCT3Dtab0[(i >> 5) - 16]; |
coeff_VLC[intra][last][level + offset][run].len |
166 |
|
= coeff_VLC[intra][last][level_esc + offset][run_esc].len + escape_len; |
167 |
|
|
168 |
|
if (!intra) { |
169 |
|
coeff_VLC[intra][last][offset - level][run].code |
170 |
|
= (escape << coeff_VLC[intra][last][level_esc + offset][run_esc].len) |
171 |
|
| coeff_VLC[intra][last][level_esc + offset][run_esc].code | 1; |
172 |
|
coeff_VLC[intra][last][offset - level][run].len |
173 |
|
= coeff_VLC[intra][last][level_esc + offset][run_esc].len + escape_len; |
174 |
} |
} |
|
else if(i >= 128) { |
|
|
*vlc1 = DCT3Dtab4[(i >> 2) - 32]; |
|
|
*vlc2 = DCT3Dtab1[(i >> 2) - 32]; |
|
175 |
} |
} |
176 |
else if(i >= 8) { |
|
177 |
*vlc1 = DCT3Dtab5[i - 8]; |
if (!intra) { |
178 |
*vlc2 = DCT3Dtab2[i - 8]; |
coeff_VLC[intra][last][0][run].code |
179 |
|
= (ESCAPE3 << 21) | (last << 20) | (run << 14) | (1 << 13) | ((-32 & 0xfff) << 1) | 1; |
180 |
|
coeff_VLC[intra][last][0][run].len = 30; |
181 |
} |
} |
|
else { |
|
|
*vlc1 = ERRtab[i]; |
|
|
*vlc2 = ERRtab[i]; |
|
182 |
} |
} |
|
|
|
|
vlc1++; |
|
|
vlc2++; |
|
183 |
} |
} |
|
DCT3D[0] = DCT3Dinter; |
|
|
DCT3D[1] = DCT3Dintra; |
|
|
|
|
184 |
} |
} |
185 |
|
|
186 |
void destroy_vlc_tables(void) { |
/* init sprite_trajectory tables |
187 |
|
* even if GMC is not specified (it might be used later...) */ |
188 |
|
|
189 |
if(intra_table != NULL && inter_table != NULL) { |
sprite_trajectory_code[0+16384].code = 0; |
190 |
intra_table -= 64*255; // uncenter vlc tables |
sprite_trajectory_code[0+16384].len = 0; |
191 |
inter_table -= 64*255; // uncenter vlc tables |
for (k=0;k<14;k++) { |
192 |
|
int limit = (1<<k); |
193 |
|
|
194 |
free(intra_table); |
for (l=-(2*limit-1); l <= -limit; l++) { |
195 |
free(inter_table); |
sprite_trajectory_code[l+16384].code = (2*limit-1)+l; |
196 |
|
sprite_trajectory_code[l+16384].len = k+1; |
197 |
} |
} |
198 |
|
|
199 |
if(DCT3D[0] != NULL && DCT3D[1] != NULL) { |
for (l=limit; l<= 2*limit-1; l++) { |
200 |
free(DCT3D[0]); |
sprite_trajectory_code[l+16384].code = l; |
201 |
free(DCT3D[1]); |
sprite_trajectory_code[l+16384].len = k+1; |
202 |
|
} |
203 |
} |
} |
|
|
|
204 |
} |
} |
205 |
|
|
206 |
static __inline void CodeVector(Bitstream *bs, int16_t value, int16_t f_code, Statistics *pStat) |
static __inline void |
207 |
|
CodeVector(Bitstream * bs, |
208 |
|
int32_t value, |
209 |
|
int32_t f_code) |
210 |
{ |
{ |
211 |
|
|
212 |
const int scale_factor = 1 << (f_code - 1); |
const int scale_factor = 1 << (f_code - 1); |
213 |
const int cmp = scale_factor << 5; |
const int cmp = scale_factor << 5; |
214 |
|
|
218 |
if(value > (cmp - 1)) |
if(value > (cmp - 1)) |
219 |
value -= 64 * scale_factor; |
value -= 64 * scale_factor; |
220 |
|
|
221 |
pStat->iMvSum += value * value; |
if (value == 0) { |
222 |
pStat->iMvCount++; |
BitstreamPutBits(bs, mb_motion_table[32].code, |
223 |
|
mb_motion_table[32].len); |
224 |
if (value == 0) |
} else { |
|
BitstreamPutBits(bs, mb_motion_table[32].code, mb_motion_table[32].len); |
|
|
else { |
|
225 |
uint16_t length, code, mv_res, sign; |
uint16_t length, code, mv_res, sign; |
226 |
|
|
227 |
length = 16 << f_code; |
length = 16 << f_code; |
245 |
code = -code; |
code = -code; |
246 |
|
|
247 |
code += 32; |
code += 32; |
248 |
BitstreamPutBits(bs, mb_motion_table[code].code, mb_motion_table[code].len); |
BitstreamPutBits(bs, mb_motion_table[code].code, |
249 |
|
mb_motion_table[code].len); |
250 |
|
|
251 |
if(f_code) |
if(f_code) |
252 |
BitstreamPutBits(bs, mv_res, f_code); |
BitstreamPutBits(bs, mv_res, f_code); |
253 |
} |
} |
254 |
|
|
255 |
} |
} |
256 |
|
|
257 |
|
static __inline void |
258 |
|
CodeCoeffInter(Bitstream * bs, |
259 |
|
const int16_t qcoeff[64], |
260 |
|
const uint16_t * zigzag) |
261 |
|
{ |
262 |
|
uint32_t i, run, prev_run, code, len; |
263 |
|
int32_t level, prev_level, level_shifted; |
264 |
|
|
265 |
static __inline void CodeCoeff(Bitstream *bs, int16_t qcoeff[64], VLC *table, |
i = 0; |
266 |
const uint16_t *zigzag, uint16_t intra) { |
run = 0; |
|
uint32_t j, last; |
|
|
short v; |
|
|
VLC *vlc; |
|
267 |
|
|
268 |
j = intra; |
while (!(level = qcoeff[zigzag[i++]])) |
269 |
last = 1 + intra; |
run++; |
270 |
|
|
271 |
while((v = qcoeff[zigzag[j++]]) == 0); |
prev_level = level; |
272 |
|
prev_run = run; |
273 |
|
run = 0; |
274 |
|
|
275 |
do { |
while (i < 64) |
276 |
// count zeroes |
{ |
277 |
vlc = table + (clip_table[2048+v] << 6) + j - last; |
if ((level = qcoeff[zigzag[i++]]) != 0) |
278 |
last = j + 1; |
{ |
279 |
while(j < 64 && (v = qcoeff[zigzag[j++]]) == 0); |
level_shifted = prev_level + 32; |
280 |
|
if (!(level_shifted & -64)) |
281 |
// write code |
{ |
282 |
if(j != 64) { |
code = coeff_VLC[0][0][level_shifted][prev_run].code; |
283 |
BitstreamPutBits(bs, vlc->code, vlc->len); |
len = coeff_VLC[0][0][level_shifted][prev_run].len; |
284 |
} else { |
} |
285 |
vlc += 64*511; |
else |
286 |
BitstreamPutBits(bs, vlc->code, vlc->len); |
{ |
287 |
break; |
code = (ESCAPE3 << 21) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; |
288 |
|
len = 30; |
289 |
|
} |
290 |
|
BitstreamPutBits(bs, code, len); |
291 |
|
prev_level = level; |
292 |
|
prev_run = run; |
293 |
|
run = 0; |
294 |
|
} |
295 |
|
else |
296 |
|
run++; |
297 |
|
} |
298 |
|
|
299 |
|
level_shifted = prev_level + 32; |
300 |
|
if (!(level_shifted & -64)) |
301 |
|
{ |
302 |
|
code = coeff_VLC[0][1][level_shifted][prev_run].code; |
303 |
|
len = coeff_VLC[0][1][level_shifted][prev_run].len; |
304 |
|
} |
305 |
|
else |
306 |
|
{ |
307 |
|
code = (ESCAPE3 << 21) | (1 << 20) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; |
308 |
|
len = 30; |
309 |
|
} |
310 |
|
BitstreamPutBits(bs, code, len); |
311 |
|
} |
312 |
|
|
313 |
|
static __inline void |
314 |
|
CodeCoeffIntra(Bitstream * bs, |
315 |
|
const int16_t qcoeff[64], |
316 |
|
const uint16_t * zigzag) |
317 |
|
{ |
318 |
|
uint32_t i, abs_level, run, prev_run, code, len; |
319 |
|
int32_t level, prev_level; |
320 |
|
|
321 |
|
i = 1; |
322 |
|
run = 0; |
323 |
|
|
324 |
|
while (i<64 && !(level = qcoeff[zigzag[i++]])) |
325 |
|
run++; |
326 |
|
|
327 |
|
prev_level = level; |
328 |
|
prev_run = run; |
329 |
|
run = 0; |
330 |
|
|
331 |
|
while (i < 64) |
332 |
|
{ |
333 |
|
if ((level = qcoeff[zigzag[i++]]) != 0) |
334 |
|
{ |
335 |
|
abs_level = abs(prev_level); |
336 |
|
abs_level = abs_level < 64 ? abs_level : 0; |
337 |
|
code = coeff_VLC[1][0][abs_level][prev_run].code; |
338 |
|
len = coeff_VLC[1][0][abs_level][prev_run].len; |
339 |
|
if (len != 128) |
340 |
|
code |= (prev_level < 0); |
341 |
|
else |
342 |
|
{ |
343 |
|
code = (ESCAPE3 << 21) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; |
344 |
|
len = 30; |
345 |
|
} |
346 |
|
BitstreamPutBits(bs, code, len); |
347 |
|
prev_level = level; |
348 |
|
prev_run = run; |
349 |
|
run = 0; |
350 |
|
} |
351 |
|
else |
352 |
|
run++; |
353 |
|
} |
354 |
|
|
355 |
|
abs_level = abs(prev_level); |
356 |
|
abs_level = abs_level < 64 ? abs_level : 0; |
357 |
|
code = coeff_VLC[1][1][abs_level][prev_run].code; |
358 |
|
len = coeff_VLC[1][1][abs_level][prev_run].len; |
359 |
|
if (len != 128) |
360 |
|
code |= (prev_level < 0); |
361 |
|
else |
362 |
|
{ |
363 |
|
code = (ESCAPE3 << 21) | (1 << 20) | (prev_run << 14) | (1 << 13) | ((prev_level & 0xfff) << 1) | 1; |
364 |
|
len = 30; |
365 |
|
} |
366 |
|
BitstreamPutBits(bs, code, len); |
367 |
|
} |
368 |
|
|
369 |
|
|
370 |
|
|
371 |
|
/* returns the number of bits required to encode qcoeff */ |
372 |
|
|
373 |
|
int |
374 |
|
CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag) |
375 |
|
{ |
376 |
|
int bits = 0; |
377 |
|
uint32_t i, abs_level, run, prev_run, len; |
378 |
|
int32_t level, prev_level; |
379 |
|
|
380 |
|
i = 1; |
381 |
|
run = 0; |
382 |
|
|
383 |
|
while (i<64 && !(level = qcoeff[zigzag[i++]])) |
384 |
|
run++; |
385 |
|
|
386 |
|
if (i >= 64) return 0; /* empty block */ |
387 |
|
|
388 |
|
prev_level = level; |
389 |
|
prev_run = run; |
390 |
|
run = 0; |
391 |
|
|
392 |
|
while (i < 64) |
393 |
|
{ |
394 |
|
if ((level = qcoeff[zigzag[i++]]) != 0) |
395 |
|
{ |
396 |
|
abs_level = abs(prev_level); |
397 |
|
abs_level = abs_level < 64 ? abs_level : 0; |
398 |
|
len = coeff_VLC[1][0][abs_level][prev_run].len; |
399 |
|
bits += len!=128 ? len : 30; |
400 |
|
|
401 |
|
prev_level = level; |
402 |
|
prev_run = run; |
403 |
|
run = 0; |
404 |
|
} |
405 |
|
else |
406 |
|
run++; |
407 |
|
} |
408 |
|
|
409 |
|
abs_level = abs(prev_level); |
410 |
|
abs_level = abs_level < 64 ? abs_level : 0; |
411 |
|
len = coeff_VLC[1][1][abs_level][prev_run].len; |
412 |
|
bits += len!=128 ? len : 30; |
413 |
|
|
414 |
|
return bits; |
415 |
|
} |
416 |
|
|
417 |
|
int |
418 |
|
CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag) |
419 |
|
{ |
420 |
|
uint32_t i, run, prev_run, len; |
421 |
|
int32_t level, prev_level, level_shifted; |
422 |
|
int bits = 0; |
423 |
|
|
424 |
|
i = 0; |
425 |
|
run = 0; |
426 |
|
|
427 |
|
while (!(level = qcoeff[zigzag[i++]])) |
428 |
|
run++; |
429 |
|
|
430 |
|
prev_level = level; |
431 |
|
prev_run = run; |
432 |
|
run = 0; |
433 |
|
|
434 |
|
while (i < 64) { |
435 |
|
if ((level = qcoeff[zigzag[i++]]) != 0) { |
436 |
|
level_shifted = prev_level + 32; |
437 |
|
if (!(level_shifted & -64)) |
438 |
|
len = coeff_VLC[0][0][level_shifted][prev_run].len; |
439 |
|
else |
440 |
|
len = 30; |
441 |
|
|
442 |
|
bits += len; |
443 |
|
prev_level = level; |
444 |
|
prev_run = run; |
445 |
|
run = 0; |
446 |
|
} |
447 |
|
else |
448 |
|
run++; |
449 |
} |
} |
450 |
} while(1); |
|
451 |
|
level_shifted = prev_level + 32; |
452 |
|
if (!(level_shifted & -64)) |
453 |
|
len = coeff_VLC[0][1][level_shifted][prev_run].len; |
454 |
|
else |
455 |
|
len = 30; |
456 |
|
bits += len; |
457 |
|
|
458 |
|
return bits; |
459 |
} |
} |
460 |
|
|
461 |
|
static const int iDQtab[5] = { |
462 |
|
1, 0, -1 /* no change */, 2, 3 |
463 |
|
}; |
464 |
|
#define DQ_VALUE2INDEX(value) iDQtab[(value)+2] |
465 |
|
|
466 |
static void CodeBlockIntra(const MBParam * pParam, const MACROBLOCK *pMB, |
|
467 |
int16_t qcoeff[][64], Bitstream * bs, Statistics * pStat) |
static __inline void |
468 |
|
CodeBlockIntra(const FRAMEINFO * const frame, |
469 |
|
const MACROBLOCK * pMB, |
470 |
|
int16_t qcoeff[6 * 64], |
471 |
|
Bitstream * bs, |
472 |
|
Statistics * pStat) |
473 |
{ |
{ |
474 |
|
|
475 |
uint32_t i, mcbpc, cbpy, bits; |
uint32_t i, mcbpc, cbpy, bits; |
476 |
|
|
477 |
cbpy = pMB->cbp >> 2; |
cbpy = pMB->cbp >> 2; |
478 |
|
|
479 |
// write mcbpc |
/* write mcbpc */ |
480 |
if(pParam->coding_type == I_VOP) { |
if (frame->coding_type == I_VOP) { |
481 |
mcbpc = ((pMB->mode >> 1) & 3) | ((pMB->cbp & 3) << 2); |
mcbpc = ((pMB->mode >> 1) & 3) | ((pMB->cbp & 3) << 2); |
482 |
BitstreamPutBits(bs, mcbpc_intra_tab[mcbpc].code, mcbpc_intra_tab[mcbpc].len); |
BitstreamPutBits(bs, mcbpc_intra_tab[mcbpc].code, |
483 |
} |
mcbpc_intra_tab[mcbpc].len); |
484 |
else { |
} else { |
485 |
mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
486 |
BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, mcbpc_inter_tab[mcbpc].len); |
BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, |
487 |
|
mcbpc_inter_tab[mcbpc].len); |
488 |
} |
} |
489 |
|
|
490 |
// ac prediction flag |
/* ac prediction flag */ |
491 |
if(pMB->acpred_directions[0]) |
if(pMB->acpred_directions[0]) |
492 |
BitstreamPutBits(bs, 1, 1); |
BitstreamPutBits(bs, 1, 1); |
493 |
else |
else |
494 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBits(bs, 0, 1); |
495 |
|
|
496 |
// write cbpy |
/* write cbpy */ |
497 |
BitstreamPutBits (bs, cbpy_tab[cbpy].code, cbpy_tab[cbpy].len); |
BitstreamPutBits(bs, xvid_cbpy_tab[cbpy].code, xvid_cbpy_tab[cbpy].len); |
498 |
|
|
499 |
// write dquant |
/* write dquant */ |
500 |
if(pMB->mode == MODE_INTRA_Q) |
if(pMB->mode == MODE_INTRA_Q) |
501 |
BitstreamPutBits(bs, pMB->dquant, 2); |
BitstreamPutBits(bs, DQ_VALUE2INDEX(pMB->dquant), 2); |
502 |
|
|
503 |
// code block coeffs |
/* write interlacing */ |
504 |
for(i = 0; i < 6; i++) |
if (frame->vol_flags & XVID_VOL_INTERLACING) { |
505 |
{ |
BitstreamPutBit(bs, pMB->field_dct); |
506 |
|
} |
507 |
|
/* code block coeffs */ |
508 |
|
for (i = 0; i < 6; i++) { |
509 |
if(i < 4) |
if(i < 4) |
510 |
BitstreamPutBits(bs, dcy_tab[qcoeff[i][0] + 255].code, |
BitstreamPutBits(bs, dcy_tab[qcoeff[i * 64 + 0] + 255].code, |
511 |
dcy_tab[qcoeff[i][0] + 255].len); |
dcy_tab[qcoeff[i * 64 + 0] + 255].len); |
512 |
else |
else |
513 |
BitstreamPutBits(bs, dcc_tab[qcoeff[i][0] + 255].code, |
BitstreamPutBits(bs, dcc_tab[qcoeff[i * 64 + 0] + 255].code, |
514 |
dcc_tab[qcoeff[i][0] + 255].len); |
dcc_tab[qcoeff[i * 64 + 0] + 255].len); |
515 |
|
|
516 |
|
if (pMB->cbp & (1 << (5 - i))) { |
517 |
|
const uint16_t *scan_table = |
518 |
|
frame->vop_flags & XVID_VOP_ALTERNATESCAN ? |
519 |
|
scan_tables[2] : scan_tables[pMB->acpred_directions[i]]; |
520 |
|
|
|
if(pMB->cbp & (1 << (5 - i))) |
|
|
{ |
|
521 |
bits = BitstreamPos(bs); |
bits = BitstreamPos(bs); |
522 |
|
|
523 |
CodeCoeff(bs, qcoeff[i], intra_table, scan_tables[pMB->acpred_directions[i]], 1); |
CodeCoeffIntra(bs, &qcoeff[i * 64], scan_table); |
524 |
|
|
525 |
bits = BitstreamPos(bs) - bits; |
bits = BitstreamPos(bs) - bits; |
526 |
pStat->iTextBits += bits; |
pStat->iTextBits += bits; |
527 |
} |
} |
528 |
} |
} |
529 |
|
|
530 |
} |
} |
531 |
|
|
532 |
|
|
533 |
static void CodeBlockInter(const MBParam * pParam, const MACROBLOCK *pMB, |
static void |
534 |
int16_t qcoeff[][64], Bitstream * bs, Statistics * pStat) |
CodeBlockInter(const FRAMEINFO * const frame, |
535 |
|
const MACROBLOCK * pMB, |
536 |
|
int16_t qcoeff[6 * 64], |
537 |
|
Bitstream * bs, |
538 |
|
Statistics * pStat) |
539 |
{ |
{ |
540 |
|
|
541 |
int32_t i; |
int32_t i; |
542 |
uint32_t bits, mcbpc, cbpy; |
uint32_t bits, mcbpc, cbpy; |
543 |
|
|
544 |
mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
mcbpc = (pMB->mode & 7) | ((pMB->cbp & 3) << 3); |
545 |
cbpy = 15 - (pMB->cbp >> 2); |
cbpy = 15 - (pMB->cbp >> 2); |
546 |
|
|
547 |
// write mcbpc |
/* write mcbpc */ |
548 |
BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, mcbpc_inter_tab[mcbpc].len); |
BitstreamPutBits(bs, mcbpc_inter_tab[mcbpc].code, |
549 |
|
mcbpc_inter_tab[mcbpc].len); |
550 |
|
|
551 |
|
if ( (frame->coding_type == S_VOP) && (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) ) |
552 |
|
BitstreamPutBit(bs, pMB->mcsel); /* mcsel: '0'=local motion, '1'=GMC */ |
553 |
|
|
554 |
// write cbpy |
/* write cbpy */ |
555 |
BitstreamPutBits(bs, cbpy_tab[cbpy].code, cbpy_tab[cbpy].len); |
BitstreamPutBits(bs, xvid_cbpy_tab[cbpy].code, xvid_cbpy_tab[cbpy].len); |
556 |
|
|
557 |
// write dquant |
/* write dquant */ |
558 |
if(pMB->mode == MODE_INTER_Q) |
if(pMB->mode == MODE_INTER_Q) |
559 |
BitstreamPutBits(bs, pMB->dquant, 2); |
BitstreamPutBits(bs, DQ_VALUE2INDEX(pMB->dquant), 2); |
560 |
|
|
561 |
// code motion vector(s) |
/* interlacing */ |
562 |
for(i = 0; i < (pMB->mode == MODE_INTER4V ? 4 : 1); i++) |
if (frame->vol_flags & XVID_VOL_INTERLACING) { |
563 |
{ |
if (pMB->cbp) { |
564 |
CodeVector(bs, pMB->pmvs[i].x, pParam->fixed_code, pStat); |
BitstreamPutBit(bs, pMB->field_dct); |
565 |
CodeVector(bs, pMB->pmvs[i].y, pParam->fixed_code, pStat); |
DPRINTF(XVID_DEBUG_MB,"codep: field_dct: %i\n", pMB->field_dct); |
566 |
|
} |
567 |
|
|
568 |
|
/* if inter block, write field ME flag */ |
569 |
|
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) && (pMB->mcsel == 0)) { |
570 |
|
BitstreamPutBit(bs, 0 /*pMB->field_pred*/); /* not implemented yet */ |
571 |
|
DPRINTF(XVID_DEBUG_MB,"codep: field_pred: %i\n", pMB->field_pred); |
572 |
|
|
573 |
|
/* write field prediction references */ |
574 |
|
#if 0 /* Remove the #if once field_pred is supported */ |
575 |
|
if (pMB->field_pred) { |
576 |
|
BitstreamPutBit(bs, pMB->field_for_top); |
577 |
|
BitstreamPutBit(bs, pMB->field_for_bot); |
578 |
|
} |
579 |
|
#endif |
580 |
|
} |
581 |
|
} |
582 |
|
|
583 |
|
bits = BitstreamPos(bs); |
584 |
|
|
585 |
|
/* code motion vector(s) if motion is local */ |
586 |
|
if (!pMB->mcsel) |
587 |
|
for (i = 0; i < (pMB->mode == MODE_INTER4V ? 4 : 1); i++) { |
588 |
|
CodeVector(bs, pMB->pmvs[i].x, frame->fcode); |
589 |
|
CodeVector(bs, pMB->pmvs[i].y, frame->fcode); |
590 |
|
|
591 |
|
#if 0 /* #ifdef _DEBUG */ |
592 |
|
if (i == 0) /* for simplicity */ { |
593 |
|
int coded_length = BitstreamPos(bs) - bits; |
594 |
|
int estimated_length = d_mv_bits(pMB->pmvs[i].x, pMB->pmvs[i].y, zeroMV, frame->fcode, 0); |
595 |
|
assert(estimated_length == coded_length); |
596 |
|
d_mv_bits(pMB->pmvs[i].x, pMB->pmvs[i].y, zeroMV, frame->fcode, 0); |
597 |
|
} |
598 |
|
#endif |
599 |
} |
} |
600 |
|
|
601 |
|
bits = BitstreamPos(bs) - bits; |
602 |
|
pStat->iMVBits += bits; |
603 |
|
|
604 |
bits = BitstreamPos(bs); |
bits = BitstreamPos(bs); |
605 |
|
|
606 |
// code block coeffs |
/* code block coeffs */ |
607 |
for(i = 0; i < 6; i++) |
for(i = 0; i < 6; i++) |
608 |
if(pMB->cbp & (1 << (5 - i))) |
if (pMB->cbp & (1 << (5 - i))) { |
609 |
CodeCoeff(bs, qcoeff[i], inter_table, scan_tables[0], 0); |
const uint16_t *scan_table = |
610 |
|
frame->vop_flags & XVID_VOP_ALTERNATESCAN ? |
611 |
|
scan_tables[2] : scan_tables[0]; |
612 |
|
|
613 |
|
CodeCoeffInter(bs, &qcoeff[i * 64], scan_table); |
614 |
|
} |
615 |
|
|
616 |
bits = BitstreamPos(bs) - bits; |
bits = BitstreamPos(bs) - bits; |
617 |
pStat->iTextBits += bits; |
pStat->iTextBits += bits; |
618 |
} |
} |
619 |
|
|
620 |
|
|
621 |
void MBCoding(const MBParam * pParam, MACROBLOCK *pMB, |
void |
622 |
int16_t qcoeff[][64], |
MBCoding(const FRAMEINFO * const frame, |
623 |
Bitstream * bs, Statistics * pStat) |
MACROBLOCK * pMB, |
624 |
{ |
int16_t qcoeff[6 * 64], |
625 |
int intra = (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q); |
Bitstream * bs, |
626 |
|
Statistics * pStat) |
627 |
|
{ |
628 |
|
if (frame->coding_type != I_VOP) |
629 |
|
BitstreamPutBit(bs, 0); /* not_coded */ |
630 |
|
|
631 |
|
if (frame->vop_flags & XVID_VOP_GREYSCALE) { |
632 |
|
pMB->cbp &= 0x3C; /* keep only bits 5-2 */ |
633 |
|
qcoeff[4*64+0]=0; /* for INTRA DC value is saved */ |
634 |
|
qcoeff[5*64+0]=0; |
635 |
|
} |
636 |
|
|
637 |
|
if (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q) |
638 |
|
CodeBlockIntra(frame, pMB, qcoeff, bs, pStat); |
639 |
|
else |
640 |
|
CodeBlockInter(frame, pMB, qcoeff, bs, pStat); |
641 |
|
|
642 |
|
} |
643 |
|
|
644 |
|
/*************************************************************** |
645 |
|
* bframe encoding start |
646 |
|
***************************************************************/ |
647 |
|
|
648 |
|
/* |
649 |
|
mbtype |
650 |
|
0 1b direct(h263) mvdb |
651 |
|
1 01b interpolate mc+q dbquant, mvdf, mvdb |
652 |
|
2 001b backward mc+q dbquant, mvdb |
653 |
|
3 0001b forward mc+q dbquant, mvdf |
654 |
|
*/ |
655 |
|
|
656 |
|
static __inline void |
657 |
|
put_bvop_mbtype(Bitstream * bs, |
658 |
|
int value) |
659 |
|
{ |
660 |
|
switch (value) { |
661 |
|
case MODE_FORWARD: |
662 |
|
BitstreamPutBit(bs, 0); |
663 |
|
case MODE_BACKWARD: |
664 |
|
BitstreamPutBit(bs, 0); |
665 |
|
case MODE_INTERPOLATE: |
666 |
|
BitstreamPutBit(bs, 0); |
667 |
|
case MODE_DIRECT: |
668 |
|
BitstreamPutBit(bs, 1); |
669 |
|
default: |
670 |
|
break; |
671 |
|
} |
672 |
|
} |
673 |
|
|
674 |
|
/* |
675 |
|
dbquant |
676 |
|
-2 10b |
677 |
|
0 0b |
678 |
|
+2 11b |
679 |
|
*/ |
680 |
|
|
681 |
|
static __inline void |
682 |
|
put_bvop_dbquant(Bitstream * bs, |
683 |
|
int value) |
684 |
|
{ |
685 |
|
switch (value) { |
686 |
|
case 0: |
687 |
|
BitstreamPutBit(bs, 0); |
688 |
|
return; |
689 |
|
|
690 |
|
case -2: |
691 |
|
BitstreamPutBit(bs, 1); |
692 |
|
BitstreamPutBit(bs, 0); |
693 |
|
return; |
694 |
|
|
695 |
|
case 2: |
696 |
|
BitstreamPutBit(bs, 1); |
697 |
|
BitstreamPutBit(bs, 1); |
698 |
|
return; |
699 |
|
|
700 |
|
default:; /* invalid */ |
701 |
|
} |
702 |
|
} |
703 |
|
|
704 |
if(pParam->coding_type == P_VOP) { |
|
705 |
if(pMB->cbp == 0 && pMB->mode == MODE_INTER && |
|
706 |
pMB->mvs[0].x == 0 && pMB->mvs[0].y == 0) |
void |
707 |
|
MBCodingBVOP(const FRAMEINFO * const frame, |
708 |
|
const MACROBLOCK * mb, |
709 |
|
const int16_t qcoeff[6 * 64], |
710 |
|
const int32_t fcode, |
711 |
|
const int32_t bcode, |
712 |
|
Bitstream * bs, |
713 |
|
Statistics * pStat) |
714 |
{ |
{ |
715 |
BitstreamPutBit(bs, 1); // not_coded |
int vcode = fcode; |
716 |
|
unsigned int i; |
717 |
|
|
718 |
|
const uint16_t *scan_table = |
719 |
|
frame->vop_flags & XVID_VOP_ALTERNATESCAN ? |
720 |
|
scan_tables[2] : scan_tables[0]; |
721 |
|
int bits; |
722 |
|
|
723 |
|
/* ------------------------------------------------------------------ |
724 |
|
when a block is skipped it is decoded DIRECT(0,0) |
725 |
|
hence is interpolated from forward & backward frames |
726 |
|
------------------------------------------------------------------ */ |
727 |
|
|
728 |
|
if (mb->mode == MODE_DIRECT_NONE_MV) { |
729 |
|
BitstreamPutBit(bs, 1); /* skipped */ |
730 |
return; |
return; |
731 |
} |
} |
732 |
else |
|
733 |
BitstreamPutBit(bs, 0); // coded |
BitstreamPutBit(bs, 0); /* not skipped */ |
734 |
|
|
735 |
|
if (mb->cbp == 0) { |
736 |
|
BitstreamPutBit(bs, 1); /* cbp == 0 */ |
737 |
|
} else { |
738 |
|
BitstreamPutBit(bs, 0); /* cbp == xxx */ |
739 |
} |
} |
740 |
|
|
741 |
if(intra) |
put_bvop_mbtype(bs, mb->mode); |
742 |
CodeBlockIntra(pParam, pMB, qcoeff, bs, pStat); |
|
743 |
else |
if (mb->cbp) { |
744 |
CodeBlockInter(pParam, pMB, qcoeff, bs, pStat); |
BitstreamPutBits(bs, mb->cbp, 6); |
745 |
|
} |
746 |
|
|
747 |
|
if (mb->mode != MODE_DIRECT && mb->cbp != 0) { |
748 |
|
put_bvop_dbquant(bs, 0); /* todo: mb->dquant = 0 */ |
749 |
|
} |
750 |
|
|
751 |
|
if (frame->vol_flags & XVID_VOL_INTERLACING) { |
752 |
|
if (mb->cbp) { |
753 |
|
BitstreamPutBit(bs, mb->field_dct); |
754 |
|
DPRINTF(XVID_DEBUG_MB,"codep: field_dct: %i\n", mb->field_dct); |
755 |
|
} |
756 |
|
|
757 |
|
/* if not direct block, write field ME flag */ |
758 |
|
if (mb->mode != MODE_DIRECT) { |
759 |
|
BitstreamPutBit(bs, 0 /*mb->field_pred*/); /* field ME not implemented */ |
760 |
|
|
761 |
|
/* write field prediction references */ |
762 |
|
#if 0 /* Remove the #if once field_pred is supported */ |
763 |
|
if (mb->field_pred) { |
764 |
|
BitstreamPutBit(bs, mb->field_for_top); |
765 |
|
BitstreamPutBit(bs, mb->field_for_bot); |
766 |
|
} |
767 |
|
#endif |
768 |
|
} |
769 |
} |
} |
770 |
|
|
771 |
|
bits = BitstreamPos(bs); |
772 |
|
|
773 |
|
switch (mb->mode) { |
774 |
|
case MODE_INTERPOLATE: |
775 |
|
CodeVector(bs, mb->pmvs[1].x, vcode); /* forward vector of interpolate mode */ |
776 |
|
CodeVector(bs, mb->pmvs[1].y, vcode); |
777 |
|
case MODE_BACKWARD: |
778 |
|
vcode = bcode; |
779 |
|
case MODE_FORWARD: |
780 |
|
CodeVector(bs, mb->pmvs[0].x, vcode); |
781 |
|
CodeVector(bs, mb->pmvs[0].y, vcode); |
782 |
|
break; |
783 |
|
case MODE_DIRECT: |
784 |
|
CodeVector(bs, mb->pmvs[3].x, 1); /* fcode is always 1 for delta vector */ |
785 |
|
CodeVector(bs, mb->pmvs[3].y, 1); /* prediction is always (0,0) */ |
786 |
|
default: break; |
787 |
|
} |
788 |
|
pStat->iMVBits += BitstreamPos(bs) - bits; |
789 |
|
|
790 |
|
bits = BitstreamPos(bs); |
791 |
|
for (i = 0; i < 6; i++) { |
792 |
|
if (mb->cbp & (1 << (5 - i))) { |
793 |
|
CodeCoeffInter(bs, &qcoeff[i * 64], scan_table); |
794 |
|
} |
795 |
|
} |
796 |
|
pStat->iTextBits += BitstreamPos(bs) - bits; |
797 |
|
} |
798 |
|
|
799 |
|
|
800 |
|
|
801 |
/*************************************************************** |
/*************************************************************** |
802 |
* decoding stuff starts here * |
* decoding stuff starts here * |
803 |
***************************************************************/ |
***************************************************************/ |
804 |
|
|
805 |
int get_mcbpc_intra(Bitstream * bs) |
|
806 |
|
/* |
807 |
|
* for IVOP addbits == 0 |
808 |
|
* for PVOP addbits == fcode - 1 |
809 |
|
* for BVOP addbits == max(fcode,bcode) - 1 |
810 |
|
* returns true or false |
811 |
|
*/ |
812 |
|
int |
813 |
|
check_resync_marker(Bitstream * bs, int addbits) |
814 |
|
{ |
815 |
|
uint32_t nbits; |
816 |
|
uint32_t code; |
817 |
|
uint32_t nbitsresyncmarker = NUMBITS_VP_RESYNC_MARKER + addbits; |
818 |
|
|
819 |
|
nbits = BitstreamNumBitsToByteAlign(bs); |
820 |
|
code = BitstreamShowBits(bs, nbits); |
821 |
|
|
822 |
|
if (code == (((uint32_t)1 << (nbits - 1)) - 1)) |
823 |
{ |
{ |
824 |
uint32_t index; |
return BitstreamShowBitsFromByteAlign(bs, nbitsresyncmarker) == RESYNC_MARKER; |
825 |
|
} |
826 |
|
|
827 |
while((index = BitstreamShowBits(bs, 9)) == 1) |
return 0; |
828 |
BitstreamSkip(bs, 9); |
} |
829 |
|
|
830 |
|
|
831 |
|
|
832 |
|
int |
833 |
|
get_mcbpc_intra(Bitstream * bs) |
834 |
|
{ |
835 |
|
|
836 |
|
uint32_t index; |
837 |
|
|
838 |
|
index = BitstreamShowBits(bs, 9); |
839 |
index >>= 3; |
index >>= 3; |
840 |
|
|
841 |
BitstreamSkip(bs, mcbpc_intra_table[index].len); |
BitstreamSkip(bs, mcbpc_intra_table[index].len); |
842 |
|
|
843 |
return mcbpc_intra_table[index].code; |
return mcbpc_intra_table[index].code; |
844 |
|
|
845 |
} |
} |
846 |
|
|
847 |
int get_mcbpc_inter(Bitstream * bs) |
int |
848 |
|
get_mcbpc_inter(Bitstream * bs) |
849 |
{ |
{ |
850 |
|
|
851 |
uint32_t index; |
uint32_t index; |
852 |
|
|
853 |
while((index = CLIP(BitstreamShowBits(bs, 9), 256)) == 1) |
index = MIN(BitstreamShowBits(bs, 9), 256); |
|
BitstreamSkip(bs, 9); |
|
854 |
|
|
855 |
BitstreamSkip(bs, mcbpc_inter_table[index].len); |
BitstreamSkip(bs, mcbpc_inter_table[index].len); |
856 |
|
|
857 |
return mcbpc_inter_table[index].code; |
return mcbpc_inter_table[index].code; |
858 |
|
|
859 |
} |
} |
860 |
|
|
861 |
int get_cbpy(Bitstream * bs, int intra) |
int |
862 |
|
get_cbpy(Bitstream * bs, |
863 |
|
int intra) |
864 |
{ |
{ |
865 |
|
|
866 |
int cbpy; |
int cbpy; |
867 |
uint32_t index = BitstreamShowBits(bs, 6); |
uint32_t index = BitstreamShowBits(bs, 6); |
868 |
|
|
873 |
cbpy = 15 - cbpy; |
cbpy = 15 - cbpy; |
874 |
|
|
875 |
return cbpy; |
return cbpy; |
876 |
|
|
877 |
} |
} |
878 |
|
|
879 |
int get_mv_data(Bitstream * bs) |
static __inline int |
880 |
|
get_mv_data(Bitstream * bs) |
881 |
{ |
{ |
882 |
|
|
883 |
uint32_t index; |
uint32_t index; |
884 |
|
|
885 |
if(BitstreamGetBit(bs)) |
if(BitstreamGetBit(bs)) |
887 |
|
|
888 |
index = BitstreamShowBits(bs, 12); |
index = BitstreamShowBits(bs, 12); |
889 |
|
|
890 |
if(index >= 512) |
if (index >= 512) { |
|
{ |
|
891 |
index = (index >> 8) - 2; |
index = (index >> 8) - 2; |
892 |
BitstreamSkip(bs, TMNMVtab0[index].len); |
BitstreamSkip(bs, TMNMVtab0[index].len); |
893 |
return TMNMVtab0[index].code; |
return TMNMVtab0[index].code; |
894 |
} |
} |
895 |
|
|
896 |
if(index >= 128) |
if (index >= 128) { |
|
{ |
|
897 |
index = (index >> 2) - 32; |
index = (index >> 2) - 32; |
898 |
BitstreamSkip(bs, TMNMVtab1[index].len); |
BitstreamSkip(bs, TMNMVtab1[index].len); |
899 |
return TMNMVtab1[index].code; |
return TMNMVtab1[index].code; |
903 |
|
|
904 |
BitstreamSkip(bs, TMNMVtab2[index].len); |
BitstreamSkip(bs, TMNMVtab2[index].len); |
905 |
return TMNMVtab2[index].code; |
return TMNMVtab2[index].code; |
906 |
|
|
907 |
} |
} |
908 |
|
|
909 |
int get_mv(Bitstream * bs, int fcode) |
int |
910 |
|
get_mv(Bitstream * bs, |
911 |
|
int fcode) |
912 |
{ |
{ |
913 |
|
|
914 |
int data; |
int data; |
915 |
int res; |
int res; |
916 |
int mv; |
int mv; |
922 |
return data; |
return data; |
923 |
|
|
924 |
res = BitstreamGetBits(bs, fcode - 1); |
res = BitstreamGetBits(bs, fcode - 1); |
925 |
mv = ((ABS(data) - 1) * scale_fac) + res + 1; |
mv = ((abs(data) - 1) * scale_fac) + res + 1; |
926 |
|
|
927 |
return data < 0 ? -mv : mv; |
return data < 0 ? -mv : mv; |
928 |
|
|
929 |
} |
} |
930 |
|
|
931 |
int get_dc_dif(Bitstream * bs, uint32_t dc_size) |
int |
932 |
|
get_dc_dif(Bitstream * bs, |
933 |
|
uint32_t dc_size) |
934 |
{ |
{ |
935 |
|
|
936 |
int code = BitstreamGetBits(bs, dc_size); |
int code = BitstreamGetBits(bs, dc_size); |
937 |
int msb = code >> (dc_size - 1); |
int msb = code >> (dc_size - 1); |
938 |
|
|
940 |
return (-1 * (code^((1 << dc_size) - 1))); |
return (-1 * (code^((1 << dc_size) - 1))); |
941 |
|
|
942 |
return code; |
return code; |
943 |
|
|
944 |
} |
} |
945 |
|
|
946 |
int get_dc_size_lum(Bitstream * bs) |
int |
947 |
|
get_dc_size_lum(Bitstream * bs) |
948 |
{ |
{ |
949 |
|
|
950 |
int code, i; |
int code, i; |
951 |
|
|
952 |
code = BitstreamShowBits(bs, 11); |
code = BitstreamShowBits(bs, 11); |
953 |
|
|
954 |
for(i = 11; i > 3; i--) { |
for(i = 11; i > 3; i--) { |
961 |
|
|
962 |
BitstreamSkip(bs, dc_lum_tab[code].len); |
BitstreamSkip(bs, dc_lum_tab[code].len); |
963 |
return dc_lum_tab[code].code; |
return dc_lum_tab[code].code; |
964 |
|
|
965 |
} |
} |
966 |
|
|
967 |
|
|
968 |
int get_dc_size_chrom(Bitstream * bs) |
int |
969 |
|
get_dc_size_chrom(Bitstream * bs) |
970 |
{ |
{ |
971 |
|
|
972 |
uint32_t code, i; |
uint32_t code, i; |
973 |
|
|
974 |
code = BitstreamShowBits(bs, 12); |
code = BitstreamShowBits(bs, 12); |
975 |
|
|
976 |
for(i = 12; i > 2; i--) { |
for(i = 12; i > 2; i--) { |
982 |
} |
} |
983 |
|
|
984 |
return 3 - BitstreamGetBits(bs, 2); |
return 3 - BitstreamGetBits(bs, 2); |
985 |
|
|
986 |
} |
} |
987 |
|
|
988 |
int get_coeff(Bitstream * bs, int *run, int *last, int intra, int short_video_header) |
#define GET_BITS(cache, n) ((cache)>>(32-(n))) |
989 |
|
|
990 |
|
static __inline int |
991 |
|
get_coeff(Bitstream * bs, |
992 |
|
int *run, |
993 |
|
int *last, |
994 |
|
int intra, |
995 |
|
int short_video_header) |
996 |
{ |
{ |
997 |
|
|
998 |
uint32_t mode; |
uint32_t mode; |
|
const VLC *tab; |
|
999 |
int32_t level; |
int32_t level; |
1000 |
|
REVERSE_EVENT *reverse_event; |
1001 |
|
|
1002 |
|
uint32_t cache = BitstreamShowBits(bs, 32); |
1003 |
|
|
1004 |
if(short_video_header) // inter-VLCs will be used for both intra and inter blocks |
if (short_video_header) /* inter-VLCs will be used for both intra and inter blocks */ |
1005 |
intra = 0; |
intra = 0; |
1006 |
|
|
1007 |
tab = &DCT3D[intra][BitstreamShowBits(bs, 12)]; |
if (GET_BITS(cache, 7) != ESCAPE) { |
1008 |
|
reverse_event = &DCT3D[intra][GET_BITS(cache, 12)]; |
1009 |
|
|
1010 |
if(tab->code == -1) |
if ((level = reverse_event->event.level) == 0) |
1011 |
goto error; |
goto error; |
1012 |
|
|
1013 |
BitstreamSkip(bs, tab->len); |
*last = reverse_event->event.last; |
1014 |
|
*run = reverse_event->event.run; |
1015 |
|
|
1016 |
if(tab->code != ESCAPE) { |
/* Don't forget to update the bitstream position */ |
1017 |
if(!intra) |
BitstreamSkip(bs, reverse_event->len+1); |
1018 |
{ |
|
1019 |
*run = (tab->code >> 4) & 255; |
return (GET_BITS(cache, reverse_event->len+1)&0x01) ? -level : level; |
|
level = tab->code & 15; |
|
|
*last = (tab->code >> 12) & 1; |
|
|
} |
|
|
else |
|
|
{ |
|
|
*run = (tab->code >> 8) & 255; |
|
|
level = tab->code & 255; |
|
|
*last = (tab->code >> 16) & 1; |
|
|
} |
|
|
return BitstreamGetBit(bs) ? -level : level; |
|
1020 |
} |
} |
1021 |
|
|
1022 |
if(short_video_header) |
/* flush 7bits of cache */ |
1023 |
{ |
cache <<= 7; |
1024 |
// escape mode 4 - H.263 type, only used if short_video_header = 1 |
|
1025 |
*last = BitstreamGetBit(bs); |
if (short_video_header) { |
1026 |
*run = BitstreamGetBits(bs, 6); |
/* escape mode 4 - H.263 type, only used if short_video_header = 1 */ |
1027 |
level = BitstreamGetBits(bs, 8); |
*last = GET_BITS(cache, 1); |
1028 |
|
*run = (GET_BITS(cache, 7) &0x3f); |
1029 |
|
level = (GET_BITS(cache, 15)&0xff); |
1030 |
|
|
1031 |
if (level == 0 || level == 128) |
if (level == 0 || level == 128) |
1032 |
DEBUG1("Illegal LEVEL for ESCAPE mode 4:", level); |
DPRINTF(XVID_DEBUG_ERROR, "Illegal LEVEL for ESCAPE mode 4: %d\n", level); |
1033 |
|
|
1034 |
return (level >= 128 ? -(256 - level) : level); |
/* We've "eaten" 22 bits */ |
1035 |
|
BitstreamSkip(bs, 22); |
1036 |
|
|
1037 |
|
return (level << 24) >> 24; |
1038 |
} |
} |
1039 |
|
|
1040 |
mode = BitstreamShowBits(bs, 2); |
if ((mode = GET_BITS(cache, 2)) < 3) { |
1041 |
|
const int skip[3] = {1, 1, 2}; |
1042 |
|
cache <<= skip[mode]; |
1043 |
|
|
1044 |
if(mode < 3) { |
reverse_event = &DCT3D[intra][GET_BITS(cache, 12)]; |
|
BitstreamSkip(bs, (mode == 2) ? 2 : 1); |
|
1045 |
|
|
1046 |
tab = &DCT3D[intra][BitstreamShowBits(bs, 12)]; |
if ((level = reverse_event->event.level) == 0) |
|
if (tab->code == -1) |
|
1047 |
goto error; |
goto error; |
1048 |
|
|
1049 |
BitstreamSkip(bs, tab->len); |
*last = reverse_event->event.last; |
1050 |
|
*run = reverse_event->event.run; |
1051 |
|
|
1052 |
if (!intra) { |
if (mode < 2) { |
1053 |
*run = (tab->code >> 4) & 255; |
/* first escape mode, level is offset */ |
1054 |
level = tab->code & 15; |
level += max_level[intra][*last][*run]; |
1055 |
*last = (tab->code >> 12) & 1; |
} else { |
1056 |
} |
/* second escape mode, run is offset */ |
1057 |
else |
*run += max_run[intra][*last][level] + 1; |
|
{ |
|
|
*run = (tab->code >> 8) & 255; |
|
|
level = tab->code & 255; |
|
|
*last = (tab->code >> 16) & 1; |
|
1058 |
} |
} |
1059 |
|
|
1060 |
if(mode < 2) // first escape mode, level is offset |
/* Update bitstream position */ |
1061 |
level += max_level[*last + (!intra<<1)][*run]; // need to add back the max level |
BitstreamSkip(bs, 7 + skip[mode] + reverse_event->len + 1); |
|
else if(mode == 2) // second escape mode, run is offset |
|
|
*run += max_run[*last + (!intra<<1)][level] + 1; |
|
1062 |
|
|
1063 |
return BitstreamGetBit(bs) ? -level : level; |
return (GET_BITS(cache, reverse_event->len+1)&0x01) ? -level : level; |
1064 |
} |
} |
1065 |
|
|
1066 |
// third escape mode - fixed length codes |
/* third escape mode - fixed length codes */ |
1067 |
BitstreamSkip(bs, 2); |
cache <<= 2; |
1068 |
*last = BitstreamGetBits(bs, 1); |
*last = GET_BITS(cache, 1); |
1069 |
*run = BitstreamGetBits(bs, 6); |
*run = (GET_BITS(cache, 7)&0x3f); |
1070 |
BitstreamSkip(bs, 1); // marker |
level = (GET_BITS(cache, 20)&0xfff); |
|
level = BitstreamGetBits(bs, 12); |
|
|
BitstreamSkip(bs, 1); // marker |
|
1071 |
|
|
1072 |
return (level & 0x800) ? (level | (-1 ^ 0xfff)) : level; |
/* Update bitstream position */ |
1073 |
|
BitstreamSkip(bs, 30); |
1074 |
|
|
1075 |
|
return (level << 20) >> 20; |
1076 |
|
|
1077 |
error: |
error: |
1078 |
*run = VLC_ERROR; |
*run = 64; |
1079 |
return 0; |
return 0; |
1080 |
} |
} |
1081 |
|
|
1082 |
|
void |
1083 |
void get_intra_block(Bitstream * bs, int16_t * block, int direction, int coeff) |
get_intra_block(Bitstream * bs, |
1084 |
|
int16_t * block, |
1085 |
|
int direction, |
1086 |
|
int coeff) |
1087 |
{ |
{ |
1088 |
|
|
1089 |
const uint16_t * scan = scan_tables[ direction ]; |
const uint16_t * scan = scan_tables[ direction ]; |
1090 |
int level; |
int level, run, last = 0; |
|
int run; |
|
|
int last; |
|
1091 |
|
|
1092 |
do |
do { |
|
{ |
|
1093 |
level = get_coeff(bs, &run, &last, 1, 0); |
level = get_coeff(bs, &run, &last, 1, 0); |
1094 |
if (run == -1) |
coeff += run; |
1095 |
{ |
if (coeff & ~63) { |
1096 |
DEBUG("fatal: invalid run"); |
DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run or index"); |
1097 |
break; |
break; |
1098 |
} |
} |
1099 |
coeff += run; |
|
1100 |
block[ scan[coeff] ] = level; |
block[ scan[coeff] ] = level; |
1101 |
if (level < -127 || level > 127) |
|
1102 |
{ |
DPRINTF(XVID_DEBUG_COEFF,"block[%i] %i\n", scan[coeff], level); |
1103 |
DEBUG1("warning: intra_overflow", level); |
#if 0 |
1104 |
|
DPRINTF(XVID_DEBUG_COEFF,"block[%i] %i %08x\n", scan[coeff], level, BitstreamShowBits(bs, 32)); |
1105 |
|
#endif |
1106 |
|
|
1107 |
|
if (level < -2047 || level > 2047) { |
1108 |
|
DPRINTF(XVID_DEBUG_ERROR,"warning: intra_overflow %i\n", level); |
1109 |
} |
} |
1110 |
coeff++; |
coeff++; |
1111 |
} while (!last); |
} while (!last); |
1112 |
|
|
1113 |
} |
} |
1114 |
|
|
1115 |
void get_inter_block(Bitstream * bs, int16_t * block) |
void |
1116 |
|
get_inter_block_h263( |
1117 |
|
Bitstream * bs, |
1118 |
|
int16_t * block, |
1119 |
|
int direction, |
1120 |
|
const int quant, |
1121 |
|
const uint16_t *matrix) |
1122 |
{ |
{ |
1123 |
const uint16_t * scan = scan_tables[0]; |
|
1124 |
|
const uint16_t *scan = scan_tables[direction]; |
1125 |
|
const uint16_t quant_m_2 = quant << 1; |
1126 |
|
const uint16_t quant_add = (quant & 1 ? quant : quant - 1); |
1127 |
int p; |
int p; |
1128 |
int level; |
int level; |
1129 |
int run; |
int run; |
1130 |
int last; |
int last = 0; |
1131 |
|
|
1132 |
p = 0; |
p = 0; |
1133 |
do |
do { |
|
{ |
|
1134 |
level = get_coeff(bs, &run, &last, 0, 0); |
level = get_coeff(bs, &run, &last, 0, 0); |
1135 |
if (run == -1) |
p += run; |
1136 |
{ |
if (p & ~63) { |
1137 |
DEBUG("fatal: invalid run"); |
DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run or index"); |
1138 |
break; |
break; |
1139 |
} |
} |
1140 |
p += run; |
|
1141 |
block[ scan[p] ] = level; |
if (level < 0) { |
1142 |
if (level < -127 || level > 127) |
level = level*quant_m_2 - quant_add; |
1143 |
{ |
block[scan[p]] = (level >= -2048 ? level : -2048); |
1144 |
DEBUG1("warning: inter_overflow", level); |
} else { |
1145 |
|
level = level * quant_m_2 + quant_add; |
1146 |
|
block[scan[p]] = (level <= 2047 ? level : 2047); |
1147 |
} |
} |
1148 |
p++; |
p++; |
1149 |
} while (!last); |
} while (!last); |
1150 |
} |
} |
1151 |
|
|
1152 |
|
void |
1153 |
|
get_inter_block_mpeg( |
1154 |
|
Bitstream * bs, |
1155 |
|
int16_t * block, |
1156 |
|
int direction, |
1157 |
|
const int quant, |
1158 |
|
const uint16_t *matrix) |
1159 |
|
{ |
1160 |
|
const uint16_t *scan = scan_tables[direction]; |
1161 |
|
uint32_t sum = 0; |
1162 |
|
int p; |
1163 |
|
int level; |
1164 |
|
int run; |
1165 |
|
int last = 0; |
1166 |
|
|
1167 |
|
p = 0; |
1168 |
|
do { |
1169 |
|
level = get_coeff(bs, &run, &last, 0, 0); |
1170 |
|
p += run; |
1171 |
|
if (p & ~63) { |
1172 |
|
DPRINTF(XVID_DEBUG_ERROR,"fatal: invalid run or index"); |
1173 |
|
break; |
1174 |
|
} |
1175 |
|
|
1176 |
|
if (level < 0) { |
1177 |
|
level = ((2 * -level + 1) * matrix[scan[p]] * quant) >> 4; |
1178 |
|
block[scan[p]] = (level <= 2048 ? -level : -2048); |
1179 |
|
} else { |
1180 |
|
level = ((2 * level + 1) * matrix[scan[p]] * quant) >> 4; |
1181 |
|
block[scan[p]] = (level <= 2047 ? level : 2047); |
1182 |
|
} |
1183 |
|
|
1184 |
|
sum ^= block[scan[p]]; |
1185 |
|
|
1186 |
|
p++; |
1187 |
|
} while (!last); |
1188 |
|
|
1189 |
|
/* mismatch control */ |
1190 |
|
if ((sum & 1) == 0) { |
1191 |
|
block[63] ^= 1; |
1192 |
|
} |
1193 |
|
} |
1194 |
|
|
1195 |
|
|
1196 |
|
/***************************************************************************** |
1197 |
|
* VLC tables and other constant arrays |
1198 |
|
****************************************************************************/ |
1199 |
|
|
1200 |
|
VLC_TABLE const coeff_tab[2][102] = |
1201 |
|
{ |
1202 |
|
/* intra = 0 */ |
1203 |
|
{ |
1204 |
|
{{ 2, 2}, {0, 0, 1}}, |
1205 |
|
{{15, 4}, {0, 0, 2}}, |
1206 |
|
{{21, 6}, {0, 0, 3}}, |
1207 |
|
{{23, 7}, {0, 0, 4}}, |
1208 |
|
{{31, 8}, {0, 0, 5}}, |
1209 |
|
{{37, 9}, {0, 0, 6}}, |
1210 |
|
{{36, 9}, {0, 0, 7}}, |
1211 |
|
{{33, 10}, {0, 0, 8}}, |
1212 |
|
{{32, 10}, {0, 0, 9}}, |
1213 |
|
{{ 7, 11}, {0, 0, 10}}, |
1214 |
|
{{ 6, 11}, {0, 0, 11}}, |
1215 |
|
{{32, 11}, {0, 0, 12}}, |
1216 |
|
{{ 6, 3}, {0, 1, 1}}, |
1217 |
|
{{20, 6}, {0, 1, 2}}, |
1218 |
|
{{30, 8}, {0, 1, 3}}, |
1219 |
|
{{15, 10}, {0, 1, 4}}, |
1220 |
|
{{33, 11}, {0, 1, 5}}, |
1221 |
|
{{80, 12}, {0, 1, 6}}, |
1222 |
|
{{14, 4}, {0, 2, 1}}, |
1223 |
|
{{29, 8}, {0, 2, 2}}, |
1224 |
|
{{14, 10}, {0, 2, 3}}, |
1225 |
|
{{81, 12}, {0, 2, 4}}, |
1226 |
|
{{13, 5}, {0, 3, 1}}, |
1227 |
|
{{35, 9}, {0, 3, 2}}, |
1228 |
|
{{13, 10}, {0, 3, 3}}, |
1229 |
|
{{12, 5}, {0, 4, 1}}, |
1230 |
|
{{34, 9}, {0, 4, 2}}, |
1231 |
|
{{82, 12}, {0, 4, 3}}, |
1232 |
|
{{11, 5}, {0, 5, 1}}, |
1233 |
|
{{12, 10}, {0, 5, 2}}, |
1234 |
|
{{83, 12}, {0, 5, 3}}, |
1235 |
|
{{19, 6}, {0, 6, 1}}, |
1236 |
|
{{11, 10}, {0, 6, 2}}, |
1237 |
|
{{84, 12}, {0, 6, 3}}, |
1238 |
|
{{18, 6}, {0, 7, 1}}, |
1239 |
|
{{10, 10}, {0, 7, 2}}, |
1240 |
|
{{17, 6}, {0, 8, 1}}, |
1241 |
|
{{ 9, 10}, {0, 8, 2}}, |
1242 |
|
{{16, 6}, {0, 9, 1}}, |
1243 |
|
{{ 8, 10}, {0, 9, 2}}, |
1244 |
|
{{22, 7}, {0, 10, 1}}, |
1245 |
|
{{85, 12}, {0, 10, 2}}, |
1246 |
|
{{21, 7}, {0, 11, 1}}, |
1247 |
|
{{20, 7}, {0, 12, 1}}, |
1248 |
|
{{28, 8}, {0, 13, 1}}, |
1249 |
|
{{27, 8}, {0, 14, 1}}, |
1250 |
|
{{33, 9}, {0, 15, 1}}, |
1251 |
|
{{32, 9}, {0, 16, 1}}, |
1252 |
|
{{31, 9}, {0, 17, 1}}, |
1253 |
|
{{30, 9}, {0, 18, 1}}, |
1254 |
|
{{29, 9}, {0, 19, 1}}, |
1255 |
|
{{28, 9}, {0, 20, 1}}, |
1256 |
|
{{27, 9}, {0, 21, 1}}, |
1257 |
|
{{26, 9}, {0, 22, 1}}, |
1258 |
|
{{34, 11}, {0, 23, 1}}, |
1259 |
|
{{35, 11}, {0, 24, 1}}, |
1260 |
|
{{86, 12}, {0, 25, 1}}, |
1261 |
|
{{87, 12}, {0, 26, 1}}, |
1262 |
|
{{ 7, 4}, {1, 0, 1}}, |
1263 |
|
{{25, 9}, {1, 0, 2}}, |
1264 |
|
{{ 5, 11}, {1, 0, 3}}, |
1265 |
|
{{15, 6}, {1, 1, 1}}, |
1266 |
|
{{ 4, 11}, {1, 1, 2}}, |
1267 |
|
{{14, 6}, {1, 2, 1}}, |
1268 |
|
{{13, 6}, {1, 3, 1}}, |
1269 |
|
{{12, 6}, {1, 4, 1}}, |
1270 |
|
{{19, 7}, {1, 5, 1}}, |
1271 |
|
{{18, 7}, {1, 6, 1}}, |
1272 |
|
{{17, 7}, {1, 7, 1}}, |
1273 |
|
{{16, 7}, {1, 8, 1}}, |
1274 |
|
{{26, 8}, {1, 9, 1}}, |
1275 |
|
{{25, 8}, {1, 10, 1}}, |
1276 |
|
{{24, 8}, {1, 11, 1}}, |
1277 |
|
{{23, 8}, {1, 12, 1}}, |
1278 |
|
{{22, 8}, {1, 13, 1}}, |
1279 |
|
{{21, 8}, {1, 14, 1}}, |
1280 |
|
{{20, 8}, {1, 15, 1}}, |
1281 |
|
{{19, 8}, {1, 16, 1}}, |
1282 |
|
{{24, 9}, {1, 17, 1}}, |
1283 |
|
{{23, 9}, {1, 18, 1}}, |
1284 |
|
{{22, 9}, {1, 19, 1}}, |
1285 |
|
{{21, 9}, {1, 20, 1}}, |
1286 |
|
{{20, 9}, {1, 21, 1}}, |
1287 |
|
{{19, 9}, {1, 22, 1}}, |
1288 |
|
{{18, 9}, {1, 23, 1}}, |
1289 |
|
{{17, 9}, {1, 24, 1}}, |
1290 |
|
{{ 7, 10}, {1, 25, 1}}, |
1291 |
|
{{ 6, 10}, {1, 26, 1}}, |
1292 |
|
{{ 5, 10}, {1, 27, 1}}, |
1293 |
|
{{ 4, 10}, {1, 28, 1}}, |
1294 |
|
{{36, 11}, {1, 29, 1}}, |
1295 |
|
{{37, 11}, {1, 30, 1}}, |
1296 |
|
{{38, 11}, {1, 31, 1}}, |
1297 |
|
{{39, 11}, {1, 32, 1}}, |
1298 |
|
{{88, 12}, {1, 33, 1}}, |
1299 |
|
{{89, 12}, {1, 34, 1}}, |
1300 |
|
{{90, 12}, {1, 35, 1}}, |
1301 |
|
{{91, 12}, {1, 36, 1}}, |
1302 |
|
{{92, 12}, {1, 37, 1}}, |
1303 |
|
{{93, 12}, {1, 38, 1}}, |
1304 |
|
{{94, 12}, {1, 39, 1}}, |
1305 |
|
{{95, 12}, {1, 40, 1}} |
1306 |
|
}, |
1307 |
|
/* intra = 1 */ |
1308 |
|
{ |
1309 |
|
{{ 2, 2}, {0, 0, 1}}, |
1310 |
|
{{15, 4}, {0, 0, 3}}, |
1311 |
|
{{21, 6}, {0, 0, 6}}, |
1312 |
|
{{23, 7}, {0, 0, 9}}, |
1313 |
|
{{31, 8}, {0, 0, 10}}, |
1314 |
|
{{37, 9}, {0, 0, 13}}, |
1315 |
|
{{36, 9}, {0, 0, 14}}, |
1316 |
|
{{33, 10}, {0, 0, 17}}, |
1317 |
|
{{32, 10}, {0, 0, 18}}, |
1318 |
|
{{ 7, 11}, {0, 0, 21}}, |
1319 |
|
{{ 6, 11}, {0, 0, 22}}, |
1320 |
|
{{32, 11}, {0, 0, 23}}, |
1321 |
|
{{ 6, 3}, {0, 0, 2}}, |
1322 |
|
{{20, 6}, {0, 1, 2}}, |
1323 |
|
{{30, 8}, {0, 0, 11}}, |
1324 |
|
{{15, 10}, {0, 0, 19}}, |
1325 |
|
{{33, 11}, {0, 0, 24}}, |
1326 |
|
{{80, 12}, {0, 0, 25}}, |
1327 |
|
{{14, 4}, {0, 1, 1}}, |
1328 |
|
{{29, 8}, {0, 0, 12}}, |
1329 |
|
{{14, 10}, {0, 0, 20}}, |
1330 |
|
{{81, 12}, {0, 0, 26}}, |
1331 |
|
{{13, 5}, {0, 0, 4}}, |
1332 |
|
{{35, 9}, {0, 0, 15}}, |
1333 |
|
{{13, 10}, {0, 1, 7}}, |
1334 |
|
{{12, 5}, {0, 0, 5}}, |
1335 |
|
{{34, 9}, {0, 4, 2}}, |
1336 |
|
{{82, 12}, {0, 0, 27}}, |
1337 |
|
{{11, 5}, {0, 2, 1}}, |
1338 |
|
{{12, 10}, {0, 2, 4}}, |
1339 |
|
{{83, 12}, {0, 1, 9}}, |
1340 |
|
{{19, 6}, {0, 0, 7}}, |
1341 |
|
{{11, 10}, {0, 3, 4}}, |
1342 |
|
{{84, 12}, {0, 6, 3}}, |
1343 |
|
{{18, 6}, {0, 0, 8}}, |
1344 |
|
{{10, 10}, {0, 4, 3}}, |
1345 |
|
{{17, 6}, {0, 3, 1}}, |
1346 |
|
{{ 9, 10}, {0, 8, 2}}, |
1347 |
|
{{16, 6}, {0, 4, 1}}, |
1348 |
|
{{ 8, 10}, {0, 5, 3}}, |
1349 |
|
{{22, 7}, {0, 1, 3}}, |
1350 |
|
{{85, 12}, {0, 1, 10}}, |
1351 |
|
{{21, 7}, {0, 2, 2}}, |
1352 |
|
{{20, 7}, {0, 7, 1}}, |
1353 |
|
{{28, 8}, {0, 1, 4}}, |
1354 |
|
{{27, 8}, {0, 3, 2}}, |
1355 |
|
{{33, 9}, {0, 0, 16}}, |
1356 |
|
{{32, 9}, {0, 1, 5}}, |
1357 |
|
{{31, 9}, {0, 1, 6}}, |
1358 |
|
{{30, 9}, {0, 2, 3}}, |
1359 |
|
{{29, 9}, {0, 3, 3}}, |
1360 |
|
{{28, 9}, {0, 5, 2}}, |
1361 |
|
{{27, 9}, {0, 6, 2}}, |
1362 |
|
{{26, 9}, {0, 7, 2}}, |
1363 |
|
{{34, 11}, {0, 1, 8}}, |
1364 |
|
{{35, 11}, {0, 9, 2}}, |
1365 |
|
{{86, 12}, {0, 2, 5}}, |
1366 |
|
{{87, 12}, {0, 7, 3}}, |
1367 |
|
{{ 7, 4}, {1, 0, 1}}, |
1368 |
|
{{25, 9}, {0, 11, 1}}, |
1369 |
|
{{ 5, 11}, {1, 0, 6}}, |
1370 |
|
{{15, 6}, {1, 1, 1}}, |
1371 |
|
{{ 4, 11}, {1, 0, 7}}, |
1372 |
|
{{14, 6}, {1, 2, 1}}, |
1373 |
|
{{13, 6}, {0, 5, 1}}, |
1374 |
|
{{12, 6}, {1, 0, 2}}, |
1375 |
|
{{19, 7}, {1, 5, 1}}, |
1376 |
|
{{18, 7}, {0, 6, 1}}, |
1377 |
|
{{17, 7}, {1, 3, 1}}, |
1378 |
|
{{16, 7}, {1, 4, 1}}, |
1379 |
|
{{26, 8}, {1, 9, 1}}, |
1380 |
|
{{25, 8}, {0, 8, 1}}, |
1381 |
|
{{24, 8}, {0, 9, 1}}, |
1382 |
|
{{23, 8}, {0, 10, 1}}, |
1383 |
|
{{22, 8}, {1, 0, 3}}, |
1384 |
|
{{21, 8}, {1, 6, 1}}, |
1385 |
|
{{20, 8}, {1, 7, 1}}, |
1386 |
|
{{19, 8}, {1, 8, 1}}, |
1387 |
|
{{24, 9}, {0, 12, 1}}, |
1388 |
|
{{23, 9}, {1, 0, 4}}, |
1389 |
|
{{22, 9}, {1, 1, 2}}, |
1390 |
|
{{21, 9}, {1, 10, 1}}, |
1391 |
|
{{20, 9}, {1, 11, 1}}, |
1392 |
|
{{19, 9}, {1, 12, 1}}, |
1393 |
|
{{18, 9}, {1, 13, 1}}, |
1394 |
|
{{17, 9}, {1, 14, 1}}, |
1395 |
|
{{ 7, 10}, {0, 13, 1}}, |
1396 |
|
{{ 6, 10}, {1, 0, 5}}, |
1397 |
|
{{ 5, 10}, {1, 1, 3}}, |
1398 |
|
{{ 4, 10}, {1, 2, 2}}, |
1399 |
|
{{36, 11}, {1, 3, 2}}, |
1400 |
|
{{37, 11}, {1, 4, 2}}, |
1401 |
|
{{38, 11}, {1, 15, 1}}, |
1402 |
|
{{39, 11}, {1, 16, 1}}, |
1403 |
|
{{88, 12}, {0, 14, 1}}, |
1404 |
|
{{89, 12}, {1, 0, 8}}, |
1405 |
|
{{90, 12}, {1, 5, 2}}, |
1406 |
|
{{91, 12}, {1, 6, 2}}, |
1407 |
|
{{92, 12}, {1, 17, 1}}, |
1408 |
|
{{93, 12}, {1, 18, 1}}, |
1409 |
|
{{94, 12}, {1, 19, 1}}, |
1410 |
|
{{95, 12}, {1, 20, 1}} |
1411 |
|
} |
1412 |
|
}; |
1413 |
|
|
1414 |
|
/* constants taken from momusys/vm_common/inlcude/max_level.h */ |
1415 |
|
uint8_t const max_level[2][2][64] = { |
1416 |
|
{ |
1417 |
|
/* intra = 0, last = 0 */ |
1418 |
|
{ |
1419 |
|
12, 6, 4, 3, 3, 3, 3, 2, |
1420 |
|
2, 2, 2, 1, 1, 1, 1, 1, |
1421 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1422 |
|
1, 1, 1, 0, 0, 0, 0, 0, |
1423 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1424 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1425 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1426 |
|
0, 0, 0, 0, 0, 0, 0, 0 |
1427 |
|
}, |
1428 |
|
/* intra = 0, last = 1 */ |
1429 |
|
{ |
1430 |
|
3, 2, 1, 1, 1, 1, 1, 1, |
1431 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1432 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1433 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1434 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1435 |
|
1, 0, 0, 0, 0, 0, 0, 0, |
1436 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1437 |
|
0, 0, 0, 0, 0, 0, 0, 0 |
1438 |
|
} |
1439 |
|
}, |
1440 |
|
{ |
1441 |
|
/* intra = 1, last = 0 */ |
1442 |
|
{ |
1443 |
|
27, 10, 5, 4, 3, 3, 3, 3, |
1444 |
|
2, 2, 1, 1, 1, 1, 1, 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 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1449 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1450 |
|
0, 0, 0, 0, 0, 0, 0, 0 |
1451 |
|
}, |
1452 |
|
/* intra = 1, last = 1 */ |
1453 |
|
{ |
1454 |
|
8, 3, 2, 2, 2, 2, 2, 1, |
1455 |
|
1, 1, 1, 1, 1, 1, 1, 1, |
1456 |
|
1, 1, 1, 1, 1, 0, 0, 0, |
1457 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1458 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1459 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1460 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1461 |
|
0, 0, 0, 0, 0, 0, 0, 0 |
1462 |
|
} |
1463 |
|
} |
1464 |
|
}; |
1465 |
|
|
1466 |
|
uint8_t const max_run[2][2][64] = { |
1467 |
|
{ |
1468 |
|
/* intra = 0, last = 0 */ |
1469 |
|
{ |
1470 |
|
0, 26, 10, 6, 2, 1, 1, 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 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1476 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1477 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1478 |
|
}, |
1479 |
|
/* intra = 0, last = 1 */ |
1480 |
|
{ |
1481 |
|
0, 40, 1, 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 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1487 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1488 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1489 |
|
} |
1490 |
|
}, |
1491 |
|
{ |
1492 |
|
/* intra = 1, last = 0 */ |
1493 |
|
{ |
1494 |
|
0, 14, 9, 7, 3, 2, 1, 1, |
1495 |
|
1, 1, 1, 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 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1500 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1501 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1502 |
|
}, |
1503 |
|
/* intra = 1, last = 1 */ |
1504 |
|
{ |
1505 |
|
0, 20, 6, 1, 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 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1511 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1512 |
|
0, 0, 0, 0, 0, 0, 0, 0, |
1513 |
|
} |
1514 |
|
} |
1515 |
|
}; |
1516 |
|
|
1517 |
|
/****************************************************************** |
1518 |
|
* encoder tables * |
1519 |
|
******************************************************************/ |
1520 |
|
|
1521 |
|
VLC sprite_trajectory_code[32768]; |
1522 |
|
|
1523 |
|
VLC sprite_trajectory_len[15] = { |
1524 |
|
{ 0x00 , 2}, |
1525 |
|
{ 0x02 , 3}, { 0x03, 3}, { 0x04, 3}, { 0x05, 3}, { 0x06, 3}, |
1526 |
|
{ 0x0E , 4}, { 0x1E, 5}, { 0x3E, 6}, { 0x7E, 7}, { 0xFE, 8}, |
1527 |
|
{ 0x1FE, 9}, {0x3FE,10}, {0x7FE,11}, {0xFFE,12} }; |
1528 |
|
|
1529 |
|
|
1530 |
|
/* DCT coefficients. Four tables, two for last = 0, two for last = 1. |
1531 |
|
the sign bit must be added afterwards. */ |
1532 |
|
|
1533 |
|
/* MCBPC Indexing by cbpc in first two bits, mode in last two. |
1534 |
|
CBPC as in table 4/H.263, MB type (mode): 3 = 01, 4 = 10. |
1535 |
|
Example: cbpc = 01 and mode = 4 gives index = 0110 = 6. */ |
1536 |
|
|
1537 |
|
VLC mcbpc_intra_tab[15] = { |
1538 |
|
{0x01, 9}, {0x01, 1}, {0x01, 4}, {0x00, 0}, |
1539 |
|
{0x00, 0}, {0x01, 3}, {0x01, 6}, {0x00, 0}, |
1540 |
|
{0x00, 0}, {0x02, 3}, {0x02, 6}, {0x00, 0}, |
1541 |
|
{0x00, 0}, {0x03, 3}, {0x03, 6} |
1542 |
|
}; |
1543 |
|
|
1544 |
|
/* MCBPC inter. |
1545 |
|
Addressing: 5 bit ccmmm (cc = CBPC, mmm = mode (1-4 binary)) */ |
1546 |
|
|
1547 |
|
VLC mcbpc_inter_tab[29] = { |
1548 |
|
{1, 1}, {3, 3}, {2, 3}, {3, 5}, {4, 6}, {1, 9}, {0, 0}, {0, 0}, |
1549 |
|
{3, 4}, {7, 7}, {5, 7}, {4, 8}, {4, 9}, {0, 0}, {0, 0}, {0, 0}, |
1550 |
|
{2, 4}, {6, 7}, {4, 7}, {3, 8}, {3, 9}, {0, 0}, {0, 0}, {0, 0}, |
1551 |
|
{5, 6}, {5, 9}, {5, 8}, {3, 7}, {2, 9} |
1552 |
|
}; |
1553 |
|
|
1554 |
|
const VLC xvid_cbpy_tab[16] = { |
1555 |
|
{3, 4}, {5, 5}, {4, 5}, {9, 4}, {3, 5}, {7, 4}, {2, 6}, {11, 4}, |
1556 |
|
{2, 5}, {3, 6}, {5, 4}, {10, 4}, {4, 4}, {8, 4}, {6, 4}, {3, 2} |
1557 |
|
}; |
1558 |
|
|
1559 |
|
const VLC dcy_tab[511] = { |
1560 |
|
{0x100, 15}, {0x101, 15}, {0x102, 15}, {0x103, 15}, |
1561 |
|
{0x104, 15}, {0x105, 15}, {0x106, 15}, {0x107, 15}, |
1562 |
|
{0x108, 15}, {0x109, 15}, {0x10a, 15}, {0x10b, 15}, |
1563 |
|
{0x10c, 15}, {0x10d, 15}, {0x10e, 15}, {0x10f, 15}, |
1564 |
|
{0x110, 15}, {0x111, 15}, {0x112, 15}, {0x113, 15}, |
1565 |
|
{0x114, 15}, {0x115, 15}, {0x116, 15}, {0x117, 15}, |
1566 |
|
{0x118, 15}, {0x119, 15}, {0x11a, 15}, {0x11b, 15}, |
1567 |
|
{0x11c, 15}, {0x11d, 15}, {0x11e, 15}, {0x11f, 15}, |
1568 |
|
{0x120, 15}, {0x121, 15}, {0x122, 15}, {0x123, 15}, |
1569 |
|
{0x124, 15}, {0x125, 15}, {0x126, 15}, {0x127, 15}, |
1570 |
|
{0x128, 15}, {0x129, 15}, {0x12a, 15}, {0x12b, 15}, |
1571 |
|
{0x12c, 15}, {0x12d, 15}, {0x12e, 15}, {0x12f, 15}, |
1572 |
|
{0x130, 15}, {0x131, 15}, {0x132, 15}, {0x133, 15}, |
1573 |
|
{0x134, 15}, {0x135, 15}, {0x136, 15}, {0x137, 15}, |
1574 |
|
{0x138, 15}, {0x139, 15}, {0x13a, 15}, {0x13b, 15}, |
1575 |
|
{0x13c, 15}, {0x13d, 15}, {0x13e, 15}, {0x13f, 15}, |
1576 |
|
{0x140, 15}, {0x141, 15}, {0x142, 15}, {0x143, 15}, |
1577 |
|
{0x144, 15}, {0x145, 15}, {0x146, 15}, {0x147, 15}, |
1578 |
|
{0x148, 15}, {0x149, 15}, {0x14a, 15}, {0x14b, 15}, |
1579 |
|
{0x14c, 15}, {0x14d, 15}, {0x14e, 15}, {0x14f, 15}, |
1580 |
|
{0x150, 15}, {0x151, 15}, {0x152, 15}, {0x153, 15}, |
1581 |
|
{0x154, 15}, {0x155, 15}, {0x156, 15}, {0x157, 15}, |
1582 |
|
{0x158, 15}, {0x159, 15}, {0x15a, 15}, {0x15b, 15}, |
1583 |
|
{0x15c, 15}, {0x15d, 15}, {0x15e, 15}, {0x15f, 15}, |
1584 |
|
{0x160, 15}, {0x161, 15}, {0x162, 15}, {0x163, 15}, |
1585 |
|
{0x164, 15}, {0x165, 15}, {0x166, 15}, {0x167, 15}, |
1586 |
|
{0x168, 15}, {0x169, 15}, {0x16a, 15}, {0x16b, 15}, |
1587 |
|
{0x16c, 15}, {0x16d, 15}, {0x16e, 15}, {0x16f, 15}, |
1588 |
|
{0x170, 15}, {0x171, 15}, {0x172, 15}, {0x173, 15}, |
1589 |
|
{0x174, 15}, {0x175, 15}, {0x176, 15}, {0x177, 15}, |
1590 |
|
{0x178, 15}, {0x179, 15}, {0x17a, 15}, {0x17b, 15}, |
1591 |
|
{0x17c, 15}, {0x17d, 15}, {0x17e, 15}, {0x17f, 15}, |
1592 |
|
{0x80, 13}, {0x81, 13}, {0x82, 13}, {0x83, 13}, |
1593 |
|
{0x84, 13}, {0x85, 13}, {0x86, 13}, {0x87, 13}, |
1594 |
|
{0x88, 13}, {0x89, 13}, {0x8a, 13}, {0x8b, 13}, |
1595 |
|
{0x8c, 13}, {0x8d, 13}, {0x8e, 13}, {0x8f, 13}, |
1596 |
|
{0x90, 13}, {0x91, 13}, {0x92, 13}, {0x93, 13}, |
1597 |
|
{0x94, 13}, {0x95, 13}, {0x96, 13}, {0x97, 13}, |
1598 |
|
{0x98, 13}, {0x99, 13}, {0x9a, 13}, {0x9b, 13}, |
1599 |
|
{0x9c, 13}, {0x9d, 13}, {0x9e, 13}, {0x9f, 13}, |
1600 |
|
{0xa0, 13}, {0xa1, 13}, {0xa2, 13}, {0xa3, 13}, |
1601 |
|
{0xa4, 13}, {0xa5, 13}, {0xa6, 13}, {0xa7, 13}, |
1602 |
|
{0xa8, 13}, {0xa9, 13}, {0xaa, 13}, {0xab, 13}, |
1603 |
|
{0xac, 13}, {0xad, 13}, {0xae, 13}, {0xaf, 13}, |
1604 |
|
{0xb0, 13}, {0xb1, 13}, {0xb2, 13}, {0xb3, 13}, |
1605 |
|
{0xb4, 13}, {0xb5, 13}, {0xb6, 13}, {0xb7, 13}, |
1606 |
|
{0xb8, 13}, {0xb9, 13}, {0xba, 13}, {0xbb, 13}, |
1607 |
|
{0xbc, 13}, {0xbd, 13}, {0xbe, 13}, {0xbf, 13}, |
1608 |
|
{0x40, 11}, {0x41, 11}, {0x42, 11}, {0x43, 11}, |
1609 |
|
{0x44, 11}, {0x45, 11}, {0x46, 11}, {0x47, 11}, |
1610 |
|
{0x48, 11}, {0x49, 11}, {0x4a, 11}, {0x4b, 11}, |
1611 |
|
{0x4c, 11}, {0x4d, 11}, {0x4e, 11}, {0x4f, 11}, |
1612 |
|
{0x50, 11}, {0x51, 11}, {0x52, 11}, {0x53, 11}, |
1613 |
|
{0x54, 11}, {0x55, 11}, {0x56, 11}, {0x57, 11}, |
1614 |
|
{0x58, 11}, {0x59, 11}, {0x5a, 11}, {0x5b, 11}, |
1615 |
|
{0x5c, 11}, {0x5d, 11}, {0x5e, 11}, {0x5f, 11}, |
1616 |
|
{0x20, 9}, {0x21, 9}, {0x22, 9}, {0x23, 9}, |
1617 |
|
{0x24, 9}, {0x25, 9}, {0x26, 9}, {0x27, 9}, |
1618 |
|
{0x28, 9}, {0x29, 9}, {0x2a, 9}, {0x2b, 9}, |
1619 |
|
{0x2c, 9}, {0x2d, 9}, {0x2e, 9}, {0x2f, 9}, |
1620 |
|
{0x10, 7}, {0x11, 7}, {0x12, 7}, {0x13, 7}, |
1621 |
|
{0x14, 7}, {0x15, 7}, {0x16, 7}, {0x17, 7}, |
1622 |
|
{0x10, 6}, {0x11, 6}, {0x12, 6}, {0x13, 6}, |
1623 |
|
{0x08, 4}, {0x09, 4}, {0x06, 3}, {0x03, 3}, |
1624 |
|
{0x07, 3}, {0x0a, 4}, {0x0b, 4}, {0x14, 6}, |
1625 |
|
{0x15, 6}, {0x16, 6}, {0x17, 6}, {0x18, 7}, |
1626 |
|
{0x19, 7}, {0x1a, 7}, {0x1b, 7}, {0x1c, 7}, |
1627 |
|
{0x1d, 7}, {0x1e, 7}, {0x1f, 7}, {0x30, 9}, |
1628 |
|
{0x31, 9}, {0x32, 9}, {0x33, 9}, {0x34, 9}, |
1629 |
|
{0x35, 9}, {0x36, 9}, {0x37, 9}, {0x38, 9}, |
1630 |
|
{0x39, 9}, {0x3a, 9}, {0x3b, 9}, {0x3c, 9}, |
1631 |
|
{0x3d, 9}, {0x3e, 9}, {0x3f, 9}, {0x60, 11}, |
1632 |
|
{0x61, 11}, {0x62, 11}, {0x63, 11}, {0x64, 11}, |
1633 |
|
{0x65, 11}, {0x66, 11}, {0x67, 11}, {0x68, 11}, |
1634 |
|
{0x69, 11}, {0x6a, 11}, {0x6b, 11}, {0x6c, 11}, |
1635 |
|
{0x6d, 11}, {0x6e, 11}, {0x6f, 11}, {0x70, 11}, |
1636 |
|
{0x71, 11}, {0x72, 11}, {0x73, 11}, {0x74, 11}, |
1637 |
|
{0x75, 11}, {0x76, 11}, {0x77, 11}, {0x78, 11}, |
1638 |
|
{0x79, 11}, {0x7a, 11}, {0x7b, 11}, {0x7c, 11}, |
1639 |
|
{0x7d, 11}, {0x7e, 11}, {0x7f, 11}, {0xc0, 13}, |
1640 |
|
{0xc1, 13}, {0xc2, 13}, {0xc3, 13}, {0xc4, 13}, |
1641 |
|
{0xc5, 13}, {0xc6, 13}, {0xc7, 13}, {0xc8, 13}, |
1642 |
|
{0xc9, 13}, {0xca, 13}, {0xcb, 13}, {0xcc, 13}, |
1643 |
|
{0xcd, 13}, {0xce, 13}, {0xcf, 13}, {0xd0, 13}, |
1644 |
|
{0xd1, 13}, {0xd2, 13}, {0xd3, 13}, {0xd4, 13}, |
1645 |
|
{0xd5, 13}, {0xd6, 13}, {0xd7, 13}, {0xd8, 13}, |
1646 |
|
{0xd9, 13}, {0xda, 13}, {0xdb, 13}, {0xdc, 13}, |
1647 |
|
{0xdd, 13}, {0xde, 13}, {0xdf, 13}, {0xe0, 13}, |
1648 |
|
{0xe1, 13}, {0xe2, 13}, {0xe3, 13}, {0xe4, 13}, |
1649 |
|
{0xe5, 13}, {0xe6, 13}, {0xe7, 13}, {0xe8, 13}, |
1650 |
|
{0xe9, 13}, {0xea, 13}, {0xeb, 13}, {0xec, 13}, |
1651 |
|
{0xed, 13}, {0xee, 13}, {0xef, 13}, {0xf0, 13}, |
1652 |
|
{0xf1, 13}, {0xf2, 13}, {0xf3, 13}, {0xf4, 13}, |
1653 |
|
{0xf5, 13}, {0xf6, 13}, {0xf7, 13}, {0xf8, 13}, |
1654 |
|
{0xf9, 13}, {0xfa, 13}, {0xfb, 13}, {0xfc, 13}, |
1655 |
|
{0xfd, 13}, {0xfe, 13}, {0xff, 13}, {0x180, 15}, |
1656 |
|
{0x181, 15}, {0x182, 15}, {0x183, 15}, {0x184, 15}, |
1657 |
|
{0x185, 15}, {0x186, 15}, {0x187, 15}, {0x188, 15}, |
1658 |
|
{0x189, 15}, {0x18a, 15}, {0x18b, 15}, {0x18c, 15}, |
1659 |
|
{0x18d, 15}, {0x18e, 15}, {0x18f, 15}, {0x190, 15}, |
1660 |
|
{0x191, 15}, {0x192, 15}, {0x193, 15}, {0x194, 15}, |
1661 |
|
{0x195, 15}, {0x196, 15}, {0x197, 15}, {0x198, 15}, |
1662 |
|
{0x199, 15}, {0x19a, 15}, {0x19b, 15}, {0x19c, 15}, |
1663 |
|
{0x19d, 15}, {0x19e, 15}, {0x19f, 15}, {0x1a0, 15}, |
1664 |
|
{0x1a1, 15}, {0x1a2, 15}, {0x1a3, 15}, {0x1a4, 15}, |
1665 |
|
{0x1a5, 15}, {0x1a6, 15}, {0x1a7, 15}, {0x1a8, 15}, |
1666 |
|
{0x1a9, 15}, {0x1aa, 15}, {0x1ab, 15}, {0x1ac, 15}, |
1667 |
|
{0x1ad, 15}, {0x1ae, 15}, {0x1af, 15}, {0x1b0, 15}, |
1668 |
|
{0x1b1, 15}, {0x1b2, 15}, {0x1b3, 15}, {0x1b4, 15}, |
1669 |
|
{0x1b5, 15}, {0x1b6, 15}, {0x1b7, 15}, {0x1b8, 15}, |
1670 |
|
{0x1b9, 15}, {0x1ba, 15}, {0x1bb, 15}, {0x1bc, 15}, |
1671 |
|
{0x1bd, 15}, {0x1be, 15}, {0x1bf, 15}, {0x1c0, 15}, |
1672 |
|
{0x1c1, 15}, {0x1c2, 15}, {0x1c3, 15}, {0x1c4, 15}, |
1673 |
|
{0x1c5, 15}, {0x1c6, 15}, {0x1c7, 15}, {0x1c8, 15}, |
1674 |
|
{0x1c9, 15}, {0x1ca, 15}, {0x1cb, 15}, {0x1cc, 15}, |
1675 |
|
{0x1cd, 15}, {0x1ce, 15}, {0x1cf, 15}, {0x1d0, 15}, |
1676 |
|
{0x1d1, 15}, {0x1d2, 15}, {0x1d3, 15}, {0x1d4, 15}, |
1677 |
|
{0x1d5, 15}, {0x1d6, 15}, {0x1d7, 15}, {0x1d8, 15}, |
1678 |
|
{0x1d9, 15}, {0x1da, 15}, {0x1db, 15}, {0x1dc, 15}, |
1679 |
|
{0x1dd, 15}, {0x1de, 15}, {0x1df, 15}, {0x1e0, 15}, |
1680 |
|
{0x1e1, 15}, {0x1e2, 15}, {0x1e3, 15}, {0x1e4, 15}, |
1681 |
|
{0x1e5, 15}, {0x1e6, 15}, {0x1e7, 15}, {0x1e8, 15}, |
1682 |
|
{0x1e9, 15}, {0x1ea, 15}, {0x1eb, 15}, {0x1ec, 15}, |
1683 |
|
{0x1ed, 15}, {0x1ee, 15}, {0x1ef, 15}, {0x1f0, 15}, |
1684 |
|
{0x1f1, 15}, {0x1f2, 15}, {0x1f3, 15}, {0x1f4, 15}, |
1685 |
|
{0x1f5, 15}, {0x1f6, 15}, {0x1f7, 15}, {0x1f8, 15}, |
1686 |
|
{0x1f9, 15}, {0x1fa, 15}, {0x1fb, 15}, {0x1fc, 15}, |
1687 |
|
{0x1fd, 15}, {0x1fe, 15}, {0x1ff, 15}, |
1688 |
|
}; |
1689 |
|
|
1690 |
|
const VLC dcc_tab[511] = { |
1691 |
|
{0x100, 16}, {0x101, 16}, {0x102, 16}, {0x103, 16}, |
1692 |
|
{0x104, 16}, {0x105, 16}, {0x106, 16}, {0x107, 16}, |
1693 |
|
{0x108, 16}, {0x109, 16}, {0x10a, 16}, {0x10b, 16}, |
1694 |
|
{0x10c, 16}, {0x10d, 16}, {0x10e, 16}, {0x10f, 16}, |
1695 |
|
{0x110, 16}, {0x111, 16}, {0x112, 16}, {0x113, 16}, |
1696 |
|
{0x114, 16}, {0x115, 16}, {0x116, 16}, {0x117, 16}, |
1697 |
|
{0x118, 16}, {0x119, 16}, {0x11a, 16}, {0x11b, 16}, |
1698 |
|
{0x11c, 16}, {0x11d, 16}, {0x11e, 16}, {0x11f, 16}, |
1699 |
|
{0x120, 16}, {0x121, 16}, {0x122, 16}, {0x123, 16}, |
1700 |
|
{0x124, 16}, {0x125, 16}, {0x126, 16}, {0x127, 16}, |
1701 |
|
{0x128, 16}, {0x129, 16}, {0x12a, 16}, {0x12b, 16}, |
1702 |
|
{0x12c, 16}, {0x12d, 16}, {0x12e, 16}, {0x12f, 16}, |
1703 |
|
{0x130, 16}, {0x131, 16}, {0x132, 16}, {0x133, 16}, |
1704 |
|
{0x134, 16}, {0x135, 16}, {0x136, 16}, {0x137, 16}, |
1705 |
|
{0x138, 16}, {0x139, 16}, {0x13a, 16}, {0x13b, 16}, |
1706 |
|
{0x13c, 16}, {0x13d, 16}, {0x13e, 16}, {0x13f, 16}, |
1707 |
|
{0x140, 16}, {0x141, 16}, {0x142, 16}, {0x143, 16}, |
1708 |
|
{0x144, 16}, {0x145, 16}, {0x146, 16}, {0x147, 16}, |
1709 |
|
{0x148, 16}, {0x149, 16}, {0x14a, 16}, {0x14b, 16}, |
1710 |
|
{0x14c, 16}, {0x14d, 16}, {0x14e, 16}, {0x14f, 16}, |
1711 |
|
{0x150, 16}, {0x151, 16}, {0x152, 16}, {0x153, 16}, |
1712 |
|
{0x154, 16}, {0x155, 16}, {0x156, 16}, {0x157, 16}, |
1713 |
|
{0x158, 16}, {0x159, 16}, {0x15a, 16}, {0x15b, 16}, |
1714 |
|
{0x15c, 16}, {0x15d, 16}, {0x15e, 16}, {0x15f, 16}, |
1715 |
|
{0x160, 16}, {0x161, 16}, {0x162, 16}, {0x163, 16}, |
1716 |
|
{0x164, 16}, {0x165, 16}, {0x166, 16}, {0x167, 16}, |
1717 |
|
{0x168, 16}, {0x169, 16}, {0x16a, 16}, {0x16b, 16}, |
1718 |
|
{0x16c, 16}, {0x16d, 16}, {0x16e, 16}, {0x16f, 16}, |
1719 |
|
{0x170, 16}, {0x171, 16}, {0x172, 16}, {0x173, 16}, |
1720 |
|
{0x174, 16}, {0x175, 16}, {0x176, 16}, {0x177, 16}, |
1721 |
|
{0x178, 16}, {0x179, 16}, {0x17a, 16}, {0x17b, 16}, |
1722 |
|
{0x17c, 16}, {0x17d, 16}, {0x17e, 16}, {0x17f, 16}, |
1723 |
|
{0x80, 14}, {0x81, 14}, {0x82, 14}, {0x83, 14}, |
1724 |
|
{0x84, 14}, {0x85, 14}, {0x86, 14}, {0x87, 14}, |
1725 |
|
{0x88, 14}, {0x89, 14}, {0x8a, 14}, {0x8b, 14}, |
1726 |
|
{0x8c, 14}, {0x8d, 14}, {0x8e, 14}, {0x8f, 14}, |
1727 |
|
{0x90, 14}, {0x91, 14}, {0x92, 14}, {0x93, 14}, |
1728 |
|
{0x94, 14}, {0x95, 14}, {0x96, 14}, {0x97, 14}, |
1729 |
|
{0x98, 14}, {0x99, 14}, {0x9a, 14}, {0x9b, 14}, |
1730 |
|
{0x9c, 14}, {0x9d, 14}, {0x9e, 14}, {0x9f, 14}, |
1731 |
|
{0xa0, 14}, {0xa1, 14}, {0xa2, 14}, {0xa3, 14}, |
1732 |
|
{0xa4, 14}, {0xa5, 14}, {0xa6, 14}, {0xa7, 14}, |
1733 |
|
{0xa8, 14}, {0xa9, 14}, {0xaa, 14}, {0xab, 14}, |
1734 |
|
{0xac, 14}, {0xad, 14}, {0xae, 14}, {0xaf, 14}, |
1735 |
|
{0xb0, 14}, {0xb1, 14}, {0xb2, 14}, {0xb3, 14}, |
1736 |
|
{0xb4, 14}, {0xb5, 14}, {0xb6, 14}, {0xb7, 14}, |
1737 |
|
{0xb8, 14}, {0xb9, 14}, {0xba, 14}, {0xbb, 14}, |
1738 |
|
{0xbc, 14}, {0xbd, 14}, {0xbe, 14}, {0xbf, 14}, |
1739 |
|
{0x40, 12}, {0x41, 12}, {0x42, 12}, {0x43, 12}, |
1740 |
|
{0x44, 12}, {0x45, 12}, {0x46, 12}, {0x47, 12}, |
1741 |
|
{0x48, 12}, {0x49, 12}, {0x4a, 12}, {0x4b, 12}, |
1742 |
|
{0x4c, 12}, {0x4d, 12}, {0x4e, 12}, {0x4f, 12}, |
1743 |
|
{0x50, 12}, {0x51, 12}, {0x52, 12}, {0x53, 12}, |
1744 |
|
{0x54, 12}, {0x55, 12}, {0x56, 12}, {0x57, 12}, |
1745 |
|
{0x58, 12}, {0x59, 12}, {0x5a, 12}, {0x5b, 12}, |
1746 |
|
{0x5c, 12}, {0x5d, 12}, {0x5e, 12}, {0x5f, 12}, |
1747 |
|
{0x20, 10}, {0x21, 10}, {0x22, 10}, {0x23, 10}, |
1748 |
|
{0x24, 10}, {0x25, 10}, {0x26, 10}, {0x27, 10}, |
1749 |
|
{0x28, 10}, {0x29, 10}, {0x2a, 10}, {0x2b, 10}, |
1750 |
|
{0x2c, 10}, {0x2d, 10}, {0x2e, 10}, {0x2f, 10}, |
1751 |
|
{0x10, 8}, {0x11, 8}, {0x12, 8}, {0x13, 8}, |
1752 |
|
{0x14, 8}, {0x15, 8}, {0x16, 8}, {0x17, 8}, |
1753 |
|
{0x08, 6}, {0x09, 6}, {0x0a, 6}, {0x0b, 6}, |
1754 |
|
{0x04, 4}, {0x05, 4}, {0x04, 3}, {0x03, 2}, |
1755 |
|
{0x05, 3}, {0x06, 4}, {0x07, 4}, {0x0c, 6}, |
1756 |
|
{0x0d, 6}, {0x0e, 6}, {0x0f, 6}, {0x18, 8}, |
1757 |
|
{0x19, 8}, {0x1a, 8}, {0x1b, 8}, {0x1c, 8}, |
1758 |
|
{0x1d, 8}, {0x1e, 8}, {0x1f, 8}, {0x30, 10}, |
1759 |
|
{0x31, 10}, {0x32, 10}, {0x33, 10}, {0x34, 10}, |
1760 |
|
{0x35, 10}, {0x36, 10}, {0x37, 10}, {0x38, 10}, |
1761 |
|
{0x39, 10}, {0x3a, 10}, {0x3b, 10}, {0x3c, 10}, |
1762 |
|
{0x3d, 10}, {0x3e, 10}, {0x3f, 10}, {0x60, 12}, |
1763 |
|
{0x61, 12}, {0x62, 12}, {0x63, 12}, {0x64, 12}, |
1764 |
|
{0x65, 12}, {0x66, 12}, {0x67, 12}, {0x68, 12}, |
1765 |
|
{0x69, 12}, {0x6a, 12}, {0x6b, 12}, {0x6c, 12}, |
1766 |
|
{0x6d, 12}, {0x6e, 12}, {0x6f, 12}, {0x70, 12}, |
1767 |
|
{0x71, 12}, {0x72, 12}, {0x73, 12}, {0x74, 12}, |
1768 |
|
{0x75, 12}, {0x76, 12}, {0x77, 12}, {0x78, 12}, |
1769 |
|
{0x79, 12}, {0x7a, 12}, {0x7b, 12}, {0x7c, 12}, |
1770 |
|
{0x7d, 12}, {0x7e, 12}, {0x7f, 12}, {0xc0, 14}, |
1771 |
|
{0xc1, 14}, {0xc2, 14}, {0xc3, 14}, {0xc4, 14}, |
1772 |
|
{0xc5, 14}, {0xc6, 14}, {0xc7, 14}, {0xc8, 14}, |
1773 |
|
{0xc9, 14}, {0xca, 14}, {0xcb, 14}, {0xcc, 14}, |
1774 |
|
{0xcd, 14}, {0xce, 14}, {0xcf, 14}, {0xd0, 14}, |
1775 |
|
{0xd1, 14}, {0xd2, 14}, {0xd3, 14}, {0xd4, 14}, |
1776 |
|
{0xd5, 14}, {0xd6, 14}, {0xd7, 14}, {0xd8, 14}, |
1777 |
|
{0xd9, 14}, {0xda, 14}, {0xdb, 14}, {0xdc, 14}, |
1778 |
|
{0xdd, 14}, {0xde, 14}, {0xdf, 14}, {0xe0, 14}, |
1779 |
|
{0xe1, 14}, {0xe2, 14}, {0xe3, 14}, {0xe4, 14}, |
1780 |
|
{0xe5, 14}, {0xe6, 14}, {0xe7, 14}, {0xe8, 14}, |
1781 |
|
{0xe9, 14}, {0xea, 14}, {0xeb, 14}, {0xec, 14}, |
1782 |
|
{0xed, 14}, {0xee, 14}, {0xef, 14}, {0xf0, 14}, |
1783 |
|
{0xf1, 14}, {0xf2, 14}, {0xf3, 14}, {0xf4, 14}, |
1784 |
|
{0xf5, 14}, {0xf6, 14}, {0xf7, 14}, {0xf8, 14}, |
1785 |
|
{0xf9, 14}, {0xfa, 14}, {0xfb, 14}, {0xfc, 14}, |
1786 |
|
{0xfd, 14}, {0xfe, 14}, {0xff, 14}, {0x180, 16}, |
1787 |
|
{0x181, 16}, {0x182, 16}, {0x183, 16}, {0x184, 16}, |
1788 |
|
{0x185, 16}, {0x186, 16}, {0x187, 16}, {0x188, 16}, |
1789 |
|
{0x189, 16}, {0x18a, 16}, {0x18b, 16}, {0x18c, 16}, |
1790 |
|
{0x18d, 16}, {0x18e, 16}, {0x18f, 16}, {0x190, 16}, |
1791 |
|
{0x191, 16}, {0x192, 16}, {0x193, 16}, {0x194, 16}, |
1792 |
|
{0x195, 16}, {0x196, 16}, {0x197, 16}, {0x198, 16}, |
1793 |
|
{0x199, 16}, {0x19a, 16}, {0x19b, 16}, {0x19c, 16}, |
1794 |
|
{0x19d, 16}, {0x19e, 16}, {0x19f, 16}, {0x1a0, 16}, |
1795 |
|
{0x1a1, 16}, {0x1a2, 16}, {0x1a3, 16}, {0x1a4, 16}, |
1796 |
|
{0x1a5, 16}, {0x1a6, 16}, {0x1a7, 16}, {0x1a8, 16}, |
1797 |
|
{0x1a9, 16}, {0x1aa, 16}, {0x1ab, 16}, {0x1ac, 16}, |
1798 |
|
{0x1ad, 16}, {0x1ae, 16}, {0x1af, 16}, {0x1b0, 16}, |
1799 |
|
{0x1b1, 16}, {0x1b2, 16}, {0x1b3, 16}, {0x1b4, 16}, |
1800 |
|
{0x1b5, 16}, {0x1b6, 16}, {0x1b7, 16}, {0x1b8, 16}, |
1801 |
|
{0x1b9, 16}, {0x1ba, 16}, {0x1bb, 16}, {0x1bc, 16}, |
1802 |
|
{0x1bd, 16}, {0x1be, 16}, {0x1bf, 16}, {0x1c0, 16}, |
1803 |
|
{0x1c1, 16}, {0x1c2, 16}, {0x1c3, 16}, {0x1c4, 16}, |
1804 |
|
{0x1c5, 16}, {0x1c6, 16}, {0x1c7, 16}, {0x1c8, 16}, |
1805 |
|
{0x1c9, 16}, {0x1ca, 16}, {0x1cb, 16}, {0x1cc, 16}, |
1806 |
|
{0x1cd, 16}, {0x1ce, 16}, {0x1cf, 16}, {0x1d0, 16}, |
1807 |
|
{0x1d1, 16}, {0x1d2, 16}, {0x1d3, 16}, {0x1d4, 16}, |
1808 |
|
{0x1d5, 16}, {0x1d6, 16}, {0x1d7, 16}, {0x1d8, 16}, |
1809 |
|
{0x1d9, 16}, {0x1da, 16}, {0x1db, 16}, {0x1dc, 16}, |
1810 |
|
{0x1dd, 16}, {0x1de, 16}, {0x1df, 16}, {0x1e0, 16}, |
1811 |
|
{0x1e1, 16}, {0x1e2, 16}, {0x1e3, 16}, {0x1e4, 16}, |
1812 |
|
{0x1e5, 16}, {0x1e6, 16}, {0x1e7, 16}, {0x1e8, 16}, |
1813 |
|
{0x1e9, 16}, {0x1ea, 16}, {0x1eb, 16}, {0x1ec, 16}, |
1814 |
|
{0x1ed, 16}, {0x1ee, 16}, {0x1ef, 16}, {0x1f0, 16}, |
1815 |
|
{0x1f1, 16}, {0x1f2, 16}, {0x1f3, 16}, {0x1f4, 16}, |
1816 |
|
{0x1f5, 16}, {0x1f6, 16}, {0x1f7, 16}, {0x1f8, 16}, |
1817 |
|
{0x1f9, 16}, {0x1fa, 16}, {0x1fb, 16}, {0x1fc, 16}, |
1818 |
|
{0x1fd, 16}, {0x1fe, 16}, {0x1ff, 16}, |
1819 |
|
}; |
1820 |
|
|
1821 |
|
|
1822 |
|
const VLC mb_motion_table[65] = { |
1823 |
|
{0x05, 13}, {0x07, 13}, {0x05, 12}, {0x07, 12}, |
1824 |
|
{0x09, 12}, {0x0b, 12}, {0x0d, 12}, {0x0f, 12}, |
1825 |
|
{0x09, 11}, {0x0b, 11}, {0x0d, 11}, {0x0f, 11}, |
1826 |
|
{0x11, 11}, {0x13, 11}, {0x15, 11}, {0x17, 11}, |
1827 |
|
{0x19, 11}, {0x1b, 11}, {0x1d, 11}, {0x1f, 11}, |
1828 |
|
{0x21, 11}, {0x23, 11}, {0x13, 10}, {0x15, 10}, |
1829 |
|
{0x17, 10}, {0x07, 8}, {0x09, 8}, {0x0b, 8}, |
1830 |
|
{0x07, 7}, {0x03, 5}, {0x03, 4}, {0x03, 3}, |
1831 |
|
{0x01, 1}, {0x02, 3}, {0x02, 4}, {0x02, 5}, |
1832 |
|
{0x06, 7}, {0x0a, 8}, {0x08, 8}, {0x06, 8}, |
1833 |
|
{0x16, 10}, {0x14, 10}, {0x12, 10}, {0x22, 11}, |
1834 |
|
{0x20, 11}, {0x1e, 11}, {0x1c, 11}, {0x1a, 11}, |
1835 |
|
{0x18, 11}, {0x16, 11}, {0x14, 11}, {0x12, 11}, |
1836 |
|
{0x10, 11}, {0x0e, 11}, {0x0c, 11}, {0x0a, 11}, |
1837 |
|
{0x08, 11}, {0x0e, 12}, {0x0c, 12}, {0x0a, 12}, |
1838 |
|
{0x08, 12}, {0x06, 12}, {0x04, 12}, {0x06, 13}, |
1839 |
|
{0x04, 13} |
1840 |
|
}; |
1841 |
|
|
1842 |
|
|
1843 |
|
/****************************************************************** |
1844 |
|
* decoder tables * |
1845 |
|
******************************************************************/ |
1846 |
|
|
1847 |
|
VLC const mcbpc_intra_table[64] = { |
1848 |
|
{-1, 0}, {20, 6}, {36, 6}, {52, 6}, {4, 4}, {4, 4}, {4, 4}, {4, 4}, |
1849 |
|
{19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, {19, 3}, |
1850 |
|
{35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, {35, 3}, |
1851 |
|
{51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, {51, 3}, |
1852 |
|
{3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, |
1853 |
|
{3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, |
1854 |
|
{3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, |
1855 |
|
{3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1}, {3, 1} |
1856 |
|
}; |
1857 |
|
|
1858 |
|
VLC const mcbpc_inter_table[257] = { |
1859 |
|
{VLC_ERROR, 0}, {255, 9}, {52, 9}, {36, 9}, {20, 9}, {49, 9}, {35, 8}, {35, 8}, |
1860 |
|
{19, 8}, {19, 8}, {50, 8}, {50, 8}, {51, 7}, {51, 7}, {51, 7}, {51, 7}, |
1861 |
|
{34, 7}, {34, 7}, {34, 7}, {34, 7}, {18, 7}, {18, 7}, {18, 7}, {18, 7}, |
1862 |
|
{33, 7}, {33, 7}, {33, 7}, {33, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
1863 |
|
{4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, {4, 6}, |
1864 |
|
{48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, {48, 6}, |
1865 |
|
{3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, |
1866 |
|
{3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, {3, 5}, |
1867 |
|
{32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, |
1868 |
|
{32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, |
1869 |
|
{32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, |
1870 |
|
{32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, {32, 4}, |
1871 |
|
{16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, |
1872 |
|
{16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, |
1873 |
|
{16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, |
1874 |
|
{16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, {16, 4}, |
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 |
|
{2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, |
1881 |
|
{2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, |
1882 |
|
{2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 3}, {2, 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 |
|
{1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, |
1889 |
|
{1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, |
1890 |
|
{1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, {1, 3}, |
1891 |
|
{0, 1} |
1892 |
|
}; |
1893 |
|
|
1894 |
|
VLC const cbpy_table[64] = { |
1895 |
|
{-1, 0}, {-1, 0}, {6, 6}, {9, 6}, {8, 5}, {8, 5}, {4, 5}, {4, 5}, |
1896 |
|
{2, 5}, {2, 5}, {1, 5}, {1, 5}, {0, 4}, {0, 4}, {0, 4}, {0, 4}, |
1897 |
|
{12, 4}, {12, 4}, {12, 4}, {12, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, |
1898 |
|
{14, 4}, {14, 4}, {14, 4}, {14, 4}, {5, 4}, {5, 4}, {5, 4}, {5, 4}, |
1899 |
|
{13, 4}, {13, 4}, {13, 4}, {13, 4}, {3, 4}, {3, 4}, {3, 4}, {3, 4}, |
1900 |
|
{11, 4}, {11, 4}, {11, 4}, {11, 4}, {7, 4}, {7, 4}, {7, 4}, {7, 4}, |
1901 |
|
{15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, |
1902 |
|
{15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2}, {15, 2} |
1903 |
|
}; |
1904 |
|
|
1905 |
|
VLC const TMNMVtab0[] = { |
1906 |
|
{3, 4}, {-3, 4}, {2, 3}, {2, 3}, {-2, 3}, {-2, 3}, {1, 2}, |
1907 |
|
{1, 2}, {1, 2}, {1, 2}, {-1, 2}, {-1, 2}, {-1, 2}, {-1, 2} |
1908 |
|
}; |
1909 |
|
|
1910 |
|
VLC const TMNMVtab1[] = { |
1911 |
|
{12, 10}, {-12, 10}, {11, 10}, {-11, 10}, |
1912 |
|
{10, 9}, {10, 9}, {-10, 9}, {-10, 9}, |
1913 |
|
{9, 9}, {9, 9}, {-9, 9}, {-9, 9}, |
1914 |
|
{8, 9}, {8, 9}, {-8, 9}, {-8, 9}, |
1915 |
|
{7, 7}, {7, 7}, {7, 7}, {7, 7}, |
1916 |
|
{7, 7}, {7, 7}, {7, 7}, {7, 7}, |
1917 |
|
{-7, 7}, {-7, 7}, {-7, 7}, {-7, 7}, |
1918 |
|
{-7, 7}, {-7, 7}, {-7, 7}, {-7, 7}, |
1919 |
|
{6, 7}, {6, 7}, {6, 7}, {6, 7}, |
1920 |
|
{6, 7}, {6, 7}, {6, 7}, {6, 7}, |
1921 |
|
{-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, |
1922 |
|
{-6, 7}, {-6, 7}, {-6, 7}, {-6, 7}, |
1923 |
|
{5, 7}, {5, 7}, {5, 7}, {5, 7}, |
1924 |
|
{5, 7}, {5, 7}, {5, 7}, {5, 7}, |
1925 |
|
{-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, |
1926 |
|
{-5, 7}, {-5, 7}, {-5, 7}, {-5, 7}, |
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 |
|
{-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, |
1933 |
|
{-4, 6}, {-4, 6}, {-4, 6}, {-4, 6}, |
1934 |
|
{-4, 6}, {-4, 6}, {-4, 6}, {-4, 6} |
1935 |
|
}; |
1936 |
|
|
1937 |
|
VLC const TMNMVtab2[] = { |
1938 |
|
{32, 12}, {-32, 12}, {31, 12}, {-31, 12}, |
1939 |
|
{30, 11}, {30, 11}, {-30, 11}, {-30, 11}, |
1940 |
|
{29, 11}, {29, 11}, {-29, 11}, {-29, 11}, |
1941 |
|
{28, 11}, {28, 11}, {-28, 11}, {-28, 11}, |
1942 |
|
{27, 11}, {27, 11}, {-27, 11}, {-27, 11}, |
1943 |
|
{26, 11}, {26, 11}, {-26, 11}, {-26, 11}, |
1944 |
|
{25, 11}, {25, 11}, {-25, 11}, {-25, 11}, |
1945 |
|
{24, 10}, {24, 10}, {24, 10}, {24, 10}, |
1946 |
|
{-24, 10}, {-24, 10}, {-24, 10}, {-24, 10}, |
1947 |
|
{23, 10}, {23, 10}, {23, 10}, {23, 10}, |
1948 |
|
{-23, 10}, {-23, 10}, {-23, 10}, {-23, 10}, |
1949 |
|
{22, 10}, {22, 10}, {22, 10}, {22, 10}, |
1950 |
|
{-22, 10}, {-22, 10}, {-22, 10}, {-22, 10}, |
1951 |
|
{21, 10}, {21, 10}, {21, 10}, {21, 10}, |
1952 |
|
{-21, 10}, {-21, 10}, {-21, 10}, {-21, 10}, |
1953 |
|
{20, 10}, {20, 10}, {20, 10}, {20, 10}, |
1954 |
|
{-20, 10}, {-20, 10}, {-20, 10}, {-20, 10}, |
1955 |
|
{19, 10}, {19, 10}, {19, 10}, {19, 10}, |
1956 |
|
{-19, 10}, {-19, 10}, {-19, 10}, {-19, 10}, |
1957 |
|
{18, 10}, {18, 10}, {18, 10}, {18, 10}, |
1958 |
|
{-18, 10}, {-18, 10}, {-18, 10}, {-18, 10}, |
1959 |
|
{17, 10}, {17, 10}, {17, 10}, {17, 10}, |
1960 |
|
{-17, 10}, {-17, 10}, {-17, 10}, {-17, 10}, |
1961 |
|
{16, 10}, {16, 10}, {16, 10}, {16, 10}, |
1962 |
|
{-16, 10}, {-16, 10}, {-16, 10}, {-16, 10}, |
1963 |
|
{15, 10}, {15, 10}, {15, 10}, {15, 10}, |
1964 |
|
{-15, 10}, {-15, 10}, {-15, 10}, {-15, 10}, |
1965 |
|
{14, 10}, {14, 10}, {14, 10}, {14, 10}, |
1966 |
|
{-14, 10}, {-14, 10}, {-14, 10}, {-14, 10}, |
1967 |
|
{13, 10}, {13, 10}, {13, 10}, {13, 10}, |
1968 |
|
{-13, 10}, {-13, 10}, {-13, 10}, {-13, 10} |
1969 |
|
}; |
1970 |
|
|
1971 |
|
short const dc_threshold[] = { |
1972 |
|
26708, 29545, 29472, 26223, 30580, 29281, 8293, 29545, |
1973 |
|
25632, 29285, 30313, 25701, 26144, 28530, 8301, 26740, |
1974 |
|
8293, 20039, 8277, 20551, 8268, 30296, 17513, 25376, |
1975 |
|
25711, 25445, 10272, 11825, 11825, 10544, 2606, 28505, |
1976 |
|
29301, 29472, 26223, 30580, 29281, 8293, 26980, 29811, |
1977 |
|
26994, 30050, 28532, 8306, 24936, 8307, 28532, 26400, |
1978 |
|
30313, 8293, 25441, 25955, 29555, 29728, 8303, 29801, |
1979 |
|
8307, 28531, 29301, 25955, 25376, 25711, 11877, 10 |
1980 |
|
}; |
1981 |
|
|
1982 |
|
VLC const dc_lum_tab[] = { |
1983 |
|
{0, 0}, {4, 3}, {3, 3}, {0, 3}, |
1984 |
|
{2, 2}, {2, 2}, {1, 2}, {1, 2}, |
1985 |
|
}; |