41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
* 26.03.2002 interlacing support |
* 28.10.2002 GMC support - gruel * |
45 |
|
* 04.10.2002 qpel support - Isibaar * |
46 |
|
* 11.07.2002 add VOP width & height return to dec when dec->width * |
47 |
|
* or dec->height is 0 (for use in examples/ex1.c) * |
48 |
|
* MinChen <chenm001@163.com> * |
49 |
|
* 22.05.2002 bs_put_matrix fix * |
50 |
|
* 20.05.2002 added BitstreamWriteUserData * |
51 |
|
* 19.06.2002 Fix a little bug in use custom quant matrix * |
52 |
|
* MinChen <chenm001@163.com> * |
53 |
|
* 08.05.2002 add low_delay support for B_VOP decode * |
54 |
|
* MinChen <chenm001@163.com> * |
55 |
|
* 06.05.2002 low_delay * |
56 |
|
* 06.05.2002 fixed fincr/fbase error * |
57 |
|
* 01.05.2002 added BVOP support to BitstreamWriteVopHeader * |
58 |
|
* 15.04.2002 rewrite log2bin use asm386 By MinChen <chenm001@163.com> * |
59 |
|
* 26.03.2002 interlacing support * |
60 |
* 03.03.2002 qmatrix writing * |
* 03.03.2002 qmatrix writing * |
61 |
* 03.03.2002 merged BITREADER and BITWRITER * |
* 03.03.2002 merged BITREADER and BITWRITER * |
62 |
* 30.02.2002 intra_dc_threshold support * |
* 30.02.2002 intra_dc_threshold support * |
66 |
******************************************************************************/ |
******************************************************************************/ |
67 |
|
|
68 |
|
|
69 |
|
#include <string.h> |
70 |
#include "bitstream.h" |
#include "bitstream.h" |
71 |
#include "zigzag.h" |
#include "zigzag.h" |
72 |
#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
73 |
|
#include "mbcoding.h" |
74 |
|
|
75 |
static int __inline log2bin(int value) |
|
76 |
|
static uint32_t __inline |
77 |
|
log2bin(uint32_t value) |
78 |
{ |
{ |
79 |
|
/* Changed by Chenm001 */ |
80 |
|
#ifndef WIN32 |
81 |
int n = 0; |
int n = 0; |
82 |
while (value) |
|
83 |
{ |
while (value) { |
84 |
value >>= 1; |
value >>= 1; |
85 |
n++; |
n++; |
86 |
} |
} |
87 |
return n; |
return n; |
88 |
|
#else |
89 |
|
__asm { |
90 |
|
bsr eax, value |
91 |
|
inc eax |
92 |
|
} |
93 |
|
#endif |
94 |
} |
} |
95 |
|
|
96 |
|
|
97 |
static const uint32_t intra_dc_threshold_table[] = |
static const uint32_t intra_dc_threshold_table[] = { |
|
{ |
|
98 |
32, /* never use */ |
32, /* never use */ |
99 |
13, |
13, |
100 |
15, |
15, |
106 |
}; |
}; |
107 |
|
|
108 |
|
|
109 |
void bs_get_matrix(Bitstream * bs, uint8_t * matrix) |
void |
110 |
|
bs_get_matrix(Bitstream * bs, |
111 |
|
uint8_t * matrix) |
112 |
{ |
{ |
113 |
int i = 0; |
int i = 0; |
114 |
int last, value = 0; |
int last, value = 0; |
115 |
|
|
116 |
do |
do { |
|
{ |
|
117 |
last = value; |
last = value; |
118 |
value = BitstreamGetBits(bs, 8); |
value = BitstreamGetBits(bs, 8); |
119 |
matrix[ scan_tables[0][i++] ] = value; |
matrix[ scan_tables[0][i++] ] = value; |
120 |
} |
} |
121 |
while (value != 0 && i < 64); |
while (value != 0 && i < 64); |
122 |
|
i--; // fix little bug at coeff not full |
123 |
|
|
124 |
while (i < 64) |
while (i < 64) { |
|
{ |
|
125 |
matrix[ scan_tables[0][i++] ] = last; |
matrix[ scan_tables[0][i++] ] = last; |
126 |
} |
} |
127 |
} |
} |
128 |
|
|
129 |
|
|
130 |
|
|
131 |
|
// for PVOP addbits == fcode - 1 |
132 |
|
// for BVOP addbits == max(fcode,bcode) - 1 |
133 |
|
// returns mbpos |
134 |
|
int |
135 |
|
read_video_packet_header(Bitstream *bs, |
136 |
|
DECODER * dec, |
137 |
|
const int addbits, |
138 |
|
int * quant, |
139 |
|
int * fcode_forward, |
140 |
|
int * fcode_backward, |
141 |
|
int * intra_dc_threshold) |
142 |
|
{ |
143 |
|
int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; |
144 |
|
int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); |
145 |
|
int mbnum; |
146 |
|
int hec = 0; |
147 |
|
|
148 |
|
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
149 |
|
BitstreamSkip(bs, startcode_bits); |
150 |
|
|
151 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
152 |
|
|
153 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
154 |
|
{ |
155 |
|
hec = BitstreamGetBit(bs); /* header_extension_code */ |
156 |
|
if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) |
157 |
|
{ |
158 |
|
BitstreamSkip(bs, 13); /* vop_width */ |
159 |
|
READ_MARKER(); |
160 |
|
BitstreamSkip(bs, 13); /* vop_height */ |
161 |
|
READ_MARKER(); |
162 |
|
BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ |
163 |
|
READ_MARKER(); |
164 |
|
BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ |
165 |
|
READ_MARKER(); |
166 |
|
} |
167 |
|
} |
168 |
|
|
169 |
|
mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
170 |
|
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
171 |
|
|
172 |
|
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
173 |
|
{ |
174 |
|
*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
175 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
176 |
|
} |
177 |
|
|
178 |
|
if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
179 |
|
hec = BitstreamGetBit(bs); /* header_extension_code */ |
180 |
|
|
181 |
|
|
182 |
|
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
183 |
|
if (hec) |
184 |
|
{ |
185 |
|
int time_base; |
186 |
|
int time_increment; |
187 |
|
int coding_type; |
188 |
|
|
189 |
|
for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ |
190 |
|
READ_MARKER(); |
191 |
|
if (dec->time_inc_bits) |
192 |
|
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
193 |
|
READ_MARKER(); |
194 |
|
DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
195 |
|
|
196 |
|
coding_type = BitstreamGetBits(bs, 2); |
197 |
|
DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
198 |
|
|
199 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
200 |
|
{ |
201 |
|
BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
202 |
|
if (coding_type != I_VOP) |
203 |
|
BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
204 |
|
} |
205 |
|
|
206 |
|
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
207 |
|
{ |
208 |
|
*intra_dc_threshold = intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
209 |
|
|
210 |
|
if (dec->sprite_enable == SPRITE_GMC && coding_type == S_VOP && |
211 |
|
dec->sprite_warping_points > 0) |
212 |
|
{ |
213 |
|
// TODO: sprite trajectory |
214 |
|
} |
215 |
|
if (dec->reduced_resolution_enable && |
216 |
|
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
217 |
|
(coding_type == P_VOP || coding_type == I_VOP)) |
218 |
|
{ |
219 |
|
BitstreamSkip(bs, 1); /* XXX: vop_reduced_resolution */ |
220 |
|
} |
221 |
|
|
222 |
|
if (coding_type != I_VOP && fcode_forward) |
223 |
|
{ |
224 |
|
*fcode_forward = BitstreamGetBits(bs, 3); |
225 |
|
DPRINTF(DPRINTF_HEADER,"fcode_forward %i", *fcode_forward); |
226 |
|
} |
227 |
|
|
228 |
|
if (coding_type == B_VOP && fcode_backward) |
229 |
|
{ |
230 |
|
*fcode_backward = BitstreamGetBits(bs, 3); |
231 |
|
DPRINTF(DPRINTF_HEADER,"fcode_backward %i", fcode_backward); |
232 |
|
} |
233 |
|
} |
234 |
|
|
235 |
|
} |
236 |
|
|
237 |
|
if (dec->newpred_enable) |
238 |
|
{ |
239 |
|
int vop_id; |
240 |
|
int vop_id_for_prediction; |
241 |
|
|
242 |
|
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
243 |
|
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
244 |
|
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
245 |
|
{ |
246 |
|
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
247 |
|
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
248 |
|
} |
249 |
|
READ_MARKER(); |
250 |
|
} |
251 |
|
|
252 |
|
return mbnum; |
253 |
|
} |
254 |
|
|
255 |
|
|
256 |
|
|
257 |
|
|
258 |
|
/* vol estimation header */ |
259 |
|
static void |
260 |
|
read_vol_complexity_estimation_header(Bitstream * bs, DECODER * dec) |
261 |
|
{ |
262 |
|
ESTIMATION * e = &dec->estimation; |
263 |
|
|
264 |
|
e->method = BitstreamGetBits(bs, 2); /* estimation_method */ |
265 |
|
DPRINTF(DPRINTF_HEADER,"+ complexity_estimation_header; method=%i", e->method); |
266 |
|
|
267 |
|
if (e->method == 0 || e->method == 1) |
268 |
|
{ |
269 |
|
if (!BitstreamGetBit(bs)) /* shape_complexity_estimation_disable */ |
270 |
|
{ |
271 |
|
e->opaque = BitstreamGetBit(bs); /* opaque */ |
272 |
|
e->transparent = BitstreamGetBit(bs); /* transparent */ |
273 |
|
e->intra_cae = BitstreamGetBit(bs); /* intra_cae */ |
274 |
|
e->inter_cae = BitstreamGetBit(bs); /* inter_cae */ |
275 |
|
e->no_update = BitstreamGetBit(bs); /* no_update */ |
276 |
|
e->upsampling = BitstreamGetBit(bs); /* upsampling */ |
277 |
|
} |
278 |
|
|
279 |
|
if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_1_disable */ |
280 |
|
{ |
281 |
|
e->intra_blocks = BitstreamGetBit(bs); /* intra_blocks */ |
282 |
|
e->inter_blocks = BitstreamGetBit(bs); /* inter_blocks */ |
283 |
|
e->inter4v_blocks = BitstreamGetBit(bs); /* inter4v_blocks */ |
284 |
|
e->not_coded_blocks = BitstreamGetBit(bs); /* not_coded_blocks */ |
285 |
|
} |
286 |
|
} |
287 |
|
|
288 |
|
READ_MARKER(); |
289 |
|
|
290 |
|
if (!BitstreamGetBit(bs)) /* texture_complexity_estimation_set_2_disable */ |
291 |
|
{ |
292 |
|
e->dct_coefs = BitstreamGetBit(bs); /* dct_coefs */ |
293 |
|
e->dct_lines = BitstreamGetBit(bs); /* dct_lines */ |
294 |
|
e->vlc_symbols = BitstreamGetBit(bs); /* vlc_symbols */ |
295 |
|
e->vlc_bits = BitstreamGetBit(bs); /* vlc_bits */ |
296 |
|
} |
297 |
|
|
298 |
|
if (!BitstreamGetBit(bs)) /* motion_compensation_complexity_disable */ |
299 |
|
{ |
300 |
|
e->apm = BitstreamGetBit(bs); /* apm */ |
301 |
|
e->npm = BitstreamGetBit(bs); /* npm */ |
302 |
|
e->interpolate_mc_q = BitstreamGetBit(bs); /* interpolate_mc_q */ |
303 |
|
e->forw_back_mc_q = BitstreamGetBit(bs); /* forw_back_mc_q */ |
304 |
|
e->halfpel2 = BitstreamGetBit(bs); /* halfpel2 */ |
305 |
|
e->halfpel4 = BitstreamGetBit(bs); /* halfpel4 */ |
306 |
|
} |
307 |
|
|
308 |
|
READ_MARKER(); |
309 |
|
|
310 |
|
if (e->method == 1) |
311 |
|
{ |
312 |
|
if (!BitstreamGetBit(bs)) /* version2_complexity_estimation_disable */ |
313 |
|
{ |
314 |
|
e->sadct = BitstreamGetBit(bs); /* sadct */ |
315 |
|
e->quarterpel = BitstreamGetBit(bs); /* quarterpel */ |
316 |
|
} |
317 |
|
} |
318 |
|
} |
319 |
|
|
320 |
|
|
321 |
|
/* vop estimation header */ |
322 |
|
static void |
323 |
|
read_vop_complexity_estimation_header(Bitstream * bs, DECODER * dec, int coding_type) |
324 |
|
{ |
325 |
|
ESTIMATION * e = &dec->estimation; |
326 |
|
|
327 |
|
if (e->method == 0) |
328 |
|
{ |
329 |
|
if (coding_type == I_VOP) { |
330 |
|
if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
331 |
|
if (e->transparent) BitstreamSkip(bs, 8); /* */ |
332 |
|
if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
333 |
|
if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
334 |
|
if (e->no_update) BitstreamSkip(bs, 8); /* */ |
335 |
|
if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
336 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
337 |
|
if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
338 |
|
if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
339 |
|
if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
340 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
341 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
342 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
343 |
|
} |
344 |
|
|
345 |
|
if (coding_type == P_VOP) { |
346 |
|
if (e->opaque) BitstreamSkip(bs, 8); /* */ |
347 |
|
if (e->transparent) BitstreamSkip(bs, 8); /* */ |
348 |
|
if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
349 |
|
if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
350 |
|
if (e->no_update) BitstreamSkip(bs, 8); /* */ |
351 |
|
if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
352 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
353 |
|
if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
354 |
|
if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
355 |
|
if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
356 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
357 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
358 |
|
if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
359 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
360 |
|
if (e->apm) BitstreamSkip(bs, 8); /* */ |
361 |
|
if (e->npm) BitstreamSkip(bs, 8); /* */ |
362 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
363 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
364 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
365 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
366 |
|
if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
367 |
|
} |
368 |
|
if (coding_type == B_VOP) { |
369 |
|
if (e->opaque) BitstreamSkip(bs, 8); /* */ |
370 |
|
if (e->transparent) BitstreamSkip(bs, 8); /* */ |
371 |
|
if (e->intra_cae) BitstreamSkip(bs, 8); /* */ |
372 |
|
if (e->inter_cae) BitstreamSkip(bs, 8); /* */ |
373 |
|
if (e->no_update) BitstreamSkip(bs, 8); /* */ |
374 |
|
if (e->upsampling) BitstreamSkip(bs, 8); /* */ |
375 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
376 |
|
if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
377 |
|
if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
378 |
|
if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
379 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
380 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
381 |
|
if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
382 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
383 |
|
if (e->apm) BitstreamSkip(bs, 8); /* */ |
384 |
|
if (e->npm) BitstreamSkip(bs, 8); /* */ |
385 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
386 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
387 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
388 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
389 |
|
if (e->sadct) BitstreamSkip(bs, 8); /* */ |
390 |
|
if (e->quarterpel) BitstreamSkip(bs, 8); /* */ |
391 |
|
} |
392 |
|
|
393 |
|
if (coding_type == S_VOP && dec->sprite_enable == SPRITE_STATIC) { |
394 |
|
if (e->intra_blocks) BitstreamSkip(bs, 8); /* */ |
395 |
|
if (e->not_coded_blocks) BitstreamSkip(bs, 8); /* */ |
396 |
|
if (e->dct_coefs) BitstreamSkip(bs, 8); /* */ |
397 |
|
if (e->dct_lines) BitstreamSkip(bs, 8); /* */ |
398 |
|
if (e->vlc_symbols) BitstreamSkip(bs, 8); /* */ |
399 |
|
if (e->vlc_bits) BitstreamSkip(bs, 8); /* */ |
400 |
|
if (e->inter_blocks) BitstreamSkip(bs, 8); /* */ |
401 |
|
if (e->inter4v_blocks) BitstreamSkip(bs, 8); /* */ |
402 |
|
if (e->apm) BitstreamSkip(bs, 8); /* */ |
403 |
|
if (e->npm) BitstreamSkip(bs, 8); /* */ |
404 |
|
if (e->forw_back_mc_q) BitstreamSkip(bs, 8); /* */ |
405 |
|
if (e->halfpel2) BitstreamSkip(bs, 8); /* */ |
406 |
|
if (e->halfpel4) BitstreamSkip(bs, 8); /* */ |
407 |
|
if (e->interpolate_mc_q) BitstreamSkip(bs, 8); /* */ |
408 |
|
} |
409 |
|
} |
410 |
|
} |
411 |
|
|
412 |
|
|
413 |
|
|
414 |
|
|
415 |
|
|
416 |
/* |
/* |
417 |
decode headers |
decode headers |
418 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
419 |
*/ |
*/ |
420 |
|
|
421 |
int BitstreamReadHeaders(Bitstream * bs, DECODER * dec, uint32_t * rounding, uint32_t * quant, uint32_t * fcode, uint32_t * intra_dc_threshold) |
#define VIDOBJ_START_CODE_MASK 0x0000001f |
422 |
|
#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
423 |
|
|
424 |
|
int |
425 |
|
BitstreamReadHeaders(Bitstream * bs, |
426 |
|
DECODER * dec, |
427 |
|
uint32_t * rounding, |
428 |
|
uint32_t * reduced_resolution, |
429 |
|
uint32_t * quant, |
430 |
|
uint32_t * fcode_forward, |
431 |
|
uint32_t * fcode_backward, |
432 |
|
uint32_t * intra_dc_threshold, |
433 |
|
VECTOR * gmc_mv) |
434 |
{ |
{ |
435 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
|
uint32_t time_inc_resolution; |
|
436 |
uint32_t coding_type; |
uint32_t coding_type; |
437 |
uint32_t start_code; |
uint32_t start_code; |
438 |
|
uint32_t time_incr = 0; |
439 |
|
int32_t time_increment; |
440 |
|
int resize = 0; |
441 |
|
|
442 |
|
do { |
443 |
|
|
|
do |
|
|
{ |
|
444 |
BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
445 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
446 |
|
|
447 |
if (start_code == VISOBJSEQ_START_CODE) |
if (start_code == VISOBJSEQ_START_CODE) { |
448 |
{ |
|
449 |
// DEBUG("visual_object_sequence"); |
int profile; |
450 |
|
|
451 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
452 |
|
|
453 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
454 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
455 |
} |
|
456 |
else if (start_code == VISOBJSEQ_STOP_CODE) |
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
457 |
{ |
|
458 |
|
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
459 |
|
|
460 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
461 |
} |
|
462 |
else if (start_code == VISOBJ_START_CODE) |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
463 |
{ |
|
464 |
// DEBUG("visual_object"); |
} else if (start_code == VISOBJ_START_CODE) { |
465 |
|
|
466 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
467 |
|
|
468 |
BitstreamSkip(bs,32); // visual_object_start_code |
BitstreamSkip(bs,32); // visual_object_start_code |
469 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
470 |
{ |
{ |
471 |
vol_ver_id = BitstreamGetBits(bs,4); // visual_object_ver_id |
vol_ver_id = BitstreamGetBits(bs,4); // visual_object_ver_id |
472 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
473 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
474 |
} |
} else { |
|
else |
|
|
{ |
|
475 |
vol_ver_id = 1; |
vol_ver_id = 1; |
476 |
} |
} |
477 |
|
|
478 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
479 |
{ |
{ |
480 |
DEBUG("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
481 |
return -1; |
return -1; |
482 |
} |
} |
483 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
486 |
|
|
487 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
488 |
{ |
{ |
489 |
DEBUG("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
490 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
491 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
492 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
493 |
{ |
{ |
494 |
DEBUG("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
495 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
496 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
497 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
498 |
} |
} |
499 |
} |
} |
500 |
} |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
501 |
else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) |
|
502 |
{ |
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
503 |
|
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
504 |
|
|
505 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
506 |
} |
|
507 |
else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
508 |
{ |
|
509 |
// DEBUG("video_object_layer"); |
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
510 |
|
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
511 |
|
|
512 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
513 |
|
|
514 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
517 |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && |
518 |
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
519 |
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && |
520 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ACE && |
521 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_ART_SIMPLE && |
522 |
BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
523 |
{ |
{ |
524 |
DEBUG1("video_object_type_indication not supported", BitstreamShowBits(bs, 8)); |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
525 |
|
BitstreamShowBits(bs, 8)); |
526 |
return -1; |
return -1; |
527 |
} |
} |
528 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
530 |
|
|
531 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
532 |
{ |
{ |
533 |
DEBUG("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
534 |
vol_ver_id = BitstreamGetBits(bs,4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs,4); // video_object_layer_verid |
535 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
536 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
537 |
} |
} else { |
|
else |
|
|
{ |
|
538 |
vol_ver_id = 1; |
vol_ver_id = 1; |
539 |
} |
} |
|
//DEBUGI("vol_ver_id", vol_ver_id); |
|
540 |
|
|
541 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
dec->aspect_ratio = BitstreamGetBits(bs, 4); |
542 |
|
|
543 |
|
if (dec->aspect_ratio == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
544 |
{ |
{ |
545 |
DEBUG("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
546 |
BitstreamSkip(bs, 8); // par_width |
dec->par_width = BitstreamGetBits(bs, 8); // par_width |
547 |
BitstreamSkip(bs, 8); // par_height |
dec->par_height = BitstreamGetBits(bs, 8); // par_height |
548 |
} |
} |
549 |
|
|
550 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
551 |
{ |
{ |
552 |
DEBUG("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
553 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
554 |
BitstreamSkip(bs, 1); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
555 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
556 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
557 |
{ |
{ |
558 |
DEBUG("+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
559 |
BitstreamSkip(bs, 15); // first_half_bitrate |
BitstreamSkip(bs, 15); // first_half_bitrate |
560 |
READ_MARKER(); |
READ_MARKER(); |
561 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
BitstreamSkip(bs, 15); // latter_half_bitrate |
567 |
READ_MARKER(); |
READ_MARKER(); |
568 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
569 |
READ_MARKER(); |
READ_MARKER(); |
|
|
|
570 |
} |
} |
571 |
} |
} |
572 |
|
|
573 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
|
// DEBUG1("shape", dec->shape); |
|
574 |
|
|
575 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
576 |
|
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
577 |
{ |
{ |
578 |
|
DPRINTF(DPRINTF_ERROR,"non-rectangular shapes are not supported"); |
579 |
|
} |
580 |
|
|
581 |
|
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
582 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
583 |
} |
} |
584 |
|
|
585 |
READ_MARKER(); |
READ_MARKER(); |
586 |
|
|
587 |
time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
// *************************** for decode B-frame time *********************** |
588 |
time_inc_resolution--; |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
589 |
if (time_inc_resolution > 0) |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
590 |
{ |
|
591 |
dec->time_inc_bits = log2bin(time_inc_resolution); |
// dec->time_inc_resolution--; |
592 |
} |
|
593 |
else |
if (dec->time_inc_resolution > 0) { |
594 |
{ |
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
595 |
|
} else { |
596 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
597 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
598 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
599 |
} |
} |
602 |
|
|
603 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
604 |
{ |
{ |
605 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
606 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
607 |
} |
} |
608 |
|
|
609 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
|
{ |
|
610 |
|
|
611 |
if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) { |
|
{ |
|
612 |
uint32_t width, height; |
uint32_t width, height; |
613 |
|
|
614 |
READ_MARKER(); |
READ_MARKER(); |
615 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DEBUGI("width", width); |
|
616 |
READ_MARKER(); |
READ_MARKER(); |
617 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DEBUGI("height", height); |
|
618 |
READ_MARKER(); |
READ_MARKER(); |
619 |
|
|
620 |
if (width != dec->width || height != dec->height) |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
621 |
|
DPRINTF(DPRINTF_HEADER, "height %i", height); |
622 |
|
|
623 |
|
if (dec->width != width || dec->height != height) |
624 |
|
{ |
625 |
|
if (dec->fixed_dimensions) |
626 |
{ |
{ |
627 |
DEBUG("FATAL: video dimension discrepancy ***"); |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
|
DEBUG2("bitstream width/height", width, height); |
|
|
DEBUG2("param width/height", dec->width, dec->height); |
|
628 |
return -1; |
return -1; |
629 |
} |
} |
630 |
|
resize = 1; |
631 |
|
dec->width = width; |
632 |
|
dec->height = height; |
633 |
} |
} |
|
|
|
|
if ((dec->interlacing = BitstreamGetBit(bs))) |
|
|
{ |
|
|
DEBUG("vol: interlacing"); |
|
634 |
} |
} |
635 |
|
|
636 |
|
dec->interlacing = BitstreamGetBit(bs); |
637 |
|
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
638 |
|
|
639 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
640 |
{ |
{ |
641 |
DEBUG("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
642 |
// TODO |
// TODO |
643 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
644 |
} |
} |
645 |
|
|
646 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
dec->sprite_enable = BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2)); // sprite_enable |
647 |
|
|
648 |
|
if (dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable == SPRITE_GMC) |
649 |
{ |
{ |
650 |
DEBUG("sprite_enable; not supported"); |
int low_latency_sprite_enable; |
|
return -1; |
|
|
} |
|
651 |
|
|
652 |
if (vol_ver_id != 1 && dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->sprite_enable != SPRITE_GMC) |
653 |
|
{ |
654 |
|
int sprite_width; |
655 |
|
int sprite_height; |
656 |
|
int sprite_left_coord; |
657 |
|
int sprite_top_coord; |
658 |
|
sprite_width = BitstreamGetBits(bs, 13); // sprite_width |
659 |
|
READ_MARKER(); |
660 |
|
sprite_height = BitstreamGetBits(bs, 13); // sprite_height |
661 |
|
READ_MARKER(); |
662 |
|
sprite_left_coord = BitstreamGetBits(bs, 13); // sprite_left_coordinate |
663 |
|
READ_MARKER(); |
664 |
|
sprite_top_coord = BitstreamGetBits(bs, 13); // sprite_top_coordinate |
665 |
|
READ_MARKER(); |
666 |
|
} |
667 |
|
dec->sprite_warping_points = BitstreamGetBits(bs, 6); // no_of_sprite_warping_points |
668 |
|
dec->sprite_warping_accuracy = BitstreamGetBits(bs, 2); // sprite_warping_accuracy |
669 |
|
dec->sprite_brightness_change = BitstreamGetBits(bs, 1); // brightness_change |
670 |
|
if (dec->sprite_enable != SPRITE_GMC) |
671 |
{ |
{ |
672 |
|
low_latency_sprite_enable = BitstreamGetBits(bs, 1); // low_latency_sprite_enable |
673 |
|
} |
674 |
|
} |
675 |
|
|
676 |
|
if (vol_ver_id != 1 && |
677 |
|
dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
678 |
BitstreamSkip(bs, 1); // sadct_disable |
BitstreamSkip(bs, 1); // sadct_disable |
679 |
} |
} |
680 |
|
|
681 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
682 |
{ |
{ |
683 |
DEBUG("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
684 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
685 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
686 |
} |
} else { |
|
else |
|
|
{ |
|
687 |
dec->quant_bits = 5; |
dec->quant_bits = 5; |
688 |
} |
} |
689 |
|
|
690 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
|
{ |
|
691 |
BitstreamSkip(bs, 1); // no_gray_quant_update |
BitstreamSkip(bs, 1); // no_gray_quant_update |
692 |
BitstreamSkip(bs, 1); // composition_method |
BitstreamSkip(bs, 1); // composition_method |
693 |
BitstreamSkip(bs, 1); // linear_composition |
BitstreamSkip(bs, 1); // linear_composition |
694 |
} |
} |
695 |
|
|
696 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
697 |
// DEBUG1("**** quant_type", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
698 |
|
|
699 |
if (dec->quant_type) |
if (dec->quant_type) { |
|
{ |
|
700 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
701 |
{ |
{ |
702 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
703 |
|
|
704 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
705 |
|
|
706 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
707 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
708 |
} |
} else |
|
else |
|
709 |
set_intra_matrix(get_default_intra_matrix()); |
set_intra_matrix(get_default_intra_matrix()); |
710 |
|
|
711 |
if (BitstreamGetBit(bs)) // load_inter_quant_mat |
if (BitstreamGetBit(bs)) // load_inter_quant_mat |
712 |
{ |
{ |
713 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
714 |
|
|
715 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
716 |
|
|
717 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
718 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
719 |
} |
} else |
|
else |
|
720 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
721 |
|
|
722 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
723 |
{ |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
// TODO |
|
|
DEBUG("TODO: grayscale matrix stuff"); |
|
724 |
return -1; |
return -1; |
725 |
} |
} |
726 |
|
|
727 |
} |
} |
728 |
|
|
729 |
|
|
730 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) { |
731 |
{ |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
732 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
|
if (dec->quarterpel) |
|
|
{ |
|
|
DEBUG("IGNORED/TODO: quarter_sample"); |
|
|
} |
|
733 |
} |
} |
734 |
else |
else |
|
{ |
|
735 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
|
} |
|
736 |
|
|
|
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
|
|
{ |
|
|
DEBUG("TODO: complexity_estimation header"); |
|
|
// TODO |
|
|
return -1; |
|
|
} |
|
737 |
|
|
738 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
dec->complexity_estimation_disable = BitstreamGetBit(bs); /* complexity estimation disable */ |
739 |
|
if (!dec->complexity_estimation_disable) |
740 |
{ |
{ |
741 |
DEBUG("IGNORED/TODO: !resync_marker_disable"); |
read_vol_complexity_estimation_header(bs, dec); |
|
// TODO |
|
742 |
} |
} |
743 |
|
|
744 |
|
BitstreamSkip(bs, 1); // resync_marker_disable |
745 |
|
|
746 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
747 |
{ |
{ |
748 |
DEBUG("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
749 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
750 |
} |
} |
751 |
|
|
752 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) { |
753 |
{ |
dec->newpred_enable = BitstreamGetBit(bs); |
754 |
if (BitstreamGetBit(bs)) // newpred_enable |
if (dec->newpred_enable) // newpred_enable |
755 |
{ |
{ |
756 |
DEBUG("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
757 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
758 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
759 |
} |
} |
760 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
dec->reduced_resolution_enable = BitstreamGetBit(bs); /* reduced_resolution_vop_enable */ |
761 |
{ |
DPRINTF(DPRINTF_HEADER, "reduced_resolution_enable %i", dec->reduced_resolution_enable); |
|
DEBUG("TODO: reduced_resolution_vop_enable"); |
|
|
// TODO |
|
|
return -1; |
|
762 |
} |
} |
763 |
|
else |
764 |
|
{ |
765 |
|
dec->newpred_enable = 0; |
766 |
|
dec->reduced_resolution_enable = 0; |
767 |
} |
} |
768 |
|
|
769 |
if (BitstreamGetBit(bs)) // scalability |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
770 |
|
if (dec->scalability) |
771 |
{ |
{ |
772 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
773 |
DEBUG("TODO: scalability"); |
BitstreamSkip(bs, 1); /* hierarchy_type */ |
774 |
return -1; |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
775 |
|
BitstreamSkip(bs, 1); /* ref_layer_sampling_direc */ |
776 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
777 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
778 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
779 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
780 |
|
BitstreamSkip(bs, 1); /* enhancement_type */ |
781 |
|
if(dec->shape == VIDOBJLAY_SHAPE_BINARY /* && hierarchy_type==0 */) { |
782 |
|
BitstreamSkip(bs, 1); /* use_ref_shape */ |
783 |
|
BitstreamSkip(bs, 1); /* use_ref_texture */ |
784 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_n */ |
785 |
|
BitstreamSkip(bs, 5); /* shape_hor_sampling_factor_m */ |
786 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_n */ |
787 |
|
BitstreamSkip(bs, 5); /* shape_vert_sampling_factor_m */ |
788 |
} |
} |
789 |
|
return -1; |
790 |
} |
} |
791 |
else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
792 |
{ |
{ |
793 |
if (vol_ver_id != 1) |
if (vol_ver_id != 1) { |
794 |
{ |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
795 |
if (BitstreamGetBit(bs)) // scalability |
if (dec->scalability) |
796 |
{ |
{ |
797 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
798 |
DEBUG("TODO: scalability"); |
BitstreamSkip(bs, 4); /* ref_layer_id */ |
799 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_n */ |
800 |
|
BitstreamSkip(bs, 5); /* hor_sampling_factor_m */ |
801 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_n */ |
802 |
|
BitstreamSkip(bs, 5); /* vert_sampling_factor_m */ |
803 |
return -1; |
return -1; |
804 |
} |
} |
805 |
} |
} |
807 |
|
|
808 |
} |
} |
809 |
|
|
810 |
} |
return (resize ? -3 : -2 ); /* VOL */ |
811 |
else if (start_code == GRPOFVOP_START_CODE) |
|
812 |
{ |
} else if (start_code == GRPOFVOP_START_CODE) { |
813 |
// DEBUG("group_of_vop"); |
|
814 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
815 |
|
|
816 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
817 |
{ |
{ |
818 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
819 |
|
|
820 |
hours = BitstreamGetBits(bs, 5); |
hours = BitstreamGetBits(bs, 5); |
821 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
822 |
READ_MARKER(); |
READ_MARKER(); |
823 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
824 |
// DEBUG3("hms", hours, minutes, seconds); |
|
825 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
826 |
} |
} |
827 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
828 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
829 |
} |
|
830 |
else if (start_code == VOP_START_CODE) |
} else if (start_code == VOP_START_CODE) { |
831 |
{ |
|
832 |
// DEBUG("vop_start_code"); |
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
833 |
|
|
834 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
835 |
|
|
836 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
837 |
//DEBUG1("coding_type", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
838 |
|
|
839 |
while (BitstreamGetBit(bs) != 0) ; // time_base |
// *************************** for decode B-frame time *********************** |
840 |
|
while (BitstreamGetBit(bs) != 0) // time_base |
841 |
|
time_incr++; |
842 |
|
|
843 |
READ_MARKER(); |
READ_MARKER(); |
844 |
|
|
845 |
//DEBUG1("time_inc_bits", dec->time_inc_bits); |
if (dec->time_inc_bits) { |
846 |
//DEBUG1("vop_time_incr", BitstreamShowBits(bs, dec->time_inc_bits)); |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
847 |
if (dec->time_inc_bits) |
} |
848 |
{ |
|
849 |
BitstreamSkip(bs, dec->time_inc_bits); // vop_time_increment |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
850 |
|
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
851 |
|
|
852 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
853 |
|
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
854 |
|
time_incr, time_increment); |
855 |
|
|
856 |
|
if (coding_type != B_VOP) { |
857 |
|
dec->last_time_base = dec->time_base; |
858 |
|
dec->time_base += time_incr; |
859 |
|
dec->time = time_increment; |
860 |
|
|
861 |
|
/* dec->time_base * dec->time_inc_resolution + |
862 |
|
time_increment; |
863 |
|
*/ dec->time_pp = (uint32_t) |
864 |
|
(dec->time_inc_resolution + dec->time - dec->last_non_b_time)%dec->time_inc_resolution; |
865 |
|
dec->last_non_b_time = dec->time; |
866 |
|
} else { |
867 |
|
dec->time = time_increment; |
868 |
|
/* |
869 |
|
(dec->last_time_base + |
870 |
|
time_incr) * dec->time_inc_resolution + time_increment; |
871 |
|
*/ |
872 |
|
dec->time_bp = (uint32_t) |
873 |
|
(dec->time_inc_resolution + dec->last_non_b_time - dec->time)%dec->time_inc_resolution; |
874 |
} |
} |
875 |
|
|
876 |
READ_MARKER(); |
READ_MARKER(); |
877 |
|
|
878 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
879 |
{ |
{ |
880 |
|
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
881 |
return N_VOP; |
return N_VOP; |
882 |
} |
} |
883 |
|
|
884 |
/* if (newpred_enable) |
if (dec->newpred_enable) |
885 |
{ |
{ |
886 |
} |
int vop_id; |
887 |
*/ |
int vop_id_for_prediction; |
888 |
|
|
889 |
if (coding_type != I_VOP) |
vop_id = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
890 |
|
DPRINTF(DPRINTF_HEADER, "vop_id %i", vop_id); |
891 |
|
if (BitstreamGetBit(bs)) /* vop_id_for_prediction_indication */ |
892 |
{ |
{ |
893 |
|
vop_id_for_prediction = BitstreamGetBits(bs, MIN(dec->time_inc_bits + 3, 15)); |
894 |
|
DPRINTF(DPRINTF_HEADER, "vop_id_for_prediction %i", vop_id_for_prediction); |
895 |
|
} |
896 |
|
READ_MARKER(); |
897 |
|
} |
898 |
|
|
899 |
|
|
900 |
|
|
901 |
|
// fix a little bug by MinChen <chenm002@163.com> |
902 |
|
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
903 |
|
( (coding_type == P_VOP) || (coding_type == S_VOP && dec->sprite_enable == SPRITE_GMC) ) ) { |
904 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
905 |
//DEBUG1("rounding", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
906 |
} |
} |
907 |
|
|
908 |
/* if (reduced_resolution_enable) |
if (dec->reduced_resolution_enable && |
909 |
|
dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR && |
910 |
|
(coding_type == P_VOP || coding_type == I_VOP)) { |
911 |
|
|
912 |
|
*reduced_resolution = BitstreamGetBit(bs); |
913 |
|
DPRINTF(DPRINTF_HEADER, "reduced_resolution %i", *reduced_resolution); |
914 |
|
} |
915 |
|
else |
916 |
{ |
{ |
917 |
|
*reduced_resolution = 0; |
918 |
} |
} |
|
*/ |
|
919 |
|
|
920 |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
921 |
{ |
if(!(dec->sprite_enable == SPRITE_STATIC && coding_type == I_VOP)) { |
922 |
|
|
923 |
uint32_t width, height; |
uint32_t width, height; |
924 |
uint32_t horiz_mc_ref, vert_mc_ref; |
uint32_t horiz_mc_ref, vert_mc_ref; |
925 |
|
|
932 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
933 |
READ_MARKER(); |
READ_MARKER(); |
934 |
|
|
935 |
// DEBUG2("vop_width/height", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
936 |
// DEBUG2("ref ", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
937 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
938 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
939 |
|
} |
940 |
|
|
941 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
942 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
945 |
} |
} |
946 |
} |
} |
947 |
|
|
948 |
|
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
949 |
|
|
950 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (!dec->complexity_estimation_disable) |
951 |
{ |
{ |
952 |
|
read_vop_complexity_estimation_header(bs, dec, coding_type); |
953 |
|
} |
954 |
|
|
955 |
// intra_dc_vlc_threshold |
// intra_dc_vlc_threshold |
956 |
*intra_dc_threshold = intra_dc_threshold_table[ BitstreamGetBits(bs,3) ]; |
*intra_dc_threshold = |
957 |
|
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
958 |
|
|
959 |
if (dec->interlacing) |
dec->top_field_first = 0; |
960 |
{ |
dec->alternate_vertical_scan = 0; |
961 |
if ((dec->top_field_first = BitstreamGetBit(bs))) |
|
962 |
|
if (dec->interlacing) { |
963 |
|
dec->top_field_first = BitstreamGetBit(bs); |
964 |
|
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
965 |
|
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
966 |
|
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
967 |
|
|
968 |
|
} |
969 |
|
} |
970 |
|
|
971 |
|
if ((dec->sprite_enable == SPRITE_STATIC || dec->sprite_enable== SPRITE_GMC) && coding_type == S_VOP) { |
972 |
|
|
973 |
|
int i; |
974 |
|
|
975 |
|
for (i = 0 ; i < dec->sprite_warping_points; i++) |
976 |
{ |
{ |
977 |
DEBUG("vop: top_field_first"); |
int length; |
978 |
|
int x = 0, y = 0; |
979 |
|
|
980 |
|
/* sprite code borowed from ffmpeg; thx Michael Niedermayer <michaelni@gmx.at> */ |
981 |
|
length = bs_get_spritetrajectory(bs); |
982 |
|
if(length){ |
983 |
|
x= BitstreamGetBits(bs, length); |
984 |
|
if ((x >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
985 |
|
x = - (x ^ ((1 << length) - 1)); |
986 |
|
} |
987 |
|
READ_MARKER(); |
988 |
|
|
989 |
|
length = bs_get_spritetrajectory(bs); |
990 |
|
if(length){ |
991 |
|
y = BitstreamGetBits(bs, length); |
992 |
|
if ((y >> (length - 1)) == 0) /* if MSB not set it is negative*/ |
993 |
|
y = - (y ^ ((1 << length) - 1)); |
994 |
} |
} |
995 |
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) |
READ_MARKER(); |
996 |
|
|
997 |
|
gmc_mv[i].x = x; |
998 |
|
gmc_mv[i].y = y; |
999 |
|
|
1000 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
1001 |
|
} |
1002 |
|
|
1003 |
|
if (dec->sprite_brightness_change) |
1004 |
{ |
{ |
1005 |
DEBUG("vop: alternate_vertical_scan"); |
// XXX: brightness_change_factor() |
1006 |
} |
} |
1007 |
|
if (dec->sprite_enable == SPRITE_STATIC) |
1008 |
|
{ |
1009 |
|
// XXX: todo |
1010 |
} |
} |
1011 |
|
|
1012 |
} |
} |
1013 |
|
|
1014 |
*quant = BitstreamGetBits(bs, dec->quant_bits); // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
1015 |
//DEBUG1("quant", *quant); |
*quant = 1; |
1016 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
1017 |
|
|
1018 |
if (coding_type != I_VOP) |
if (coding_type != I_VOP) { |
1019 |
{ |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
1020 |
*fcode = BitstreamGetBits(bs, 3); // fcode_forward |
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
1021 |
} |
} |
1022 |
|
|
1023 |
if (coding_type == B_VOP) |
if (coding_type == B_VOP) { |
1024 |
{ |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
1025 |
// *fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
1026 |
} |
} |
1027 |
return coding_type; |
if (!dec->scalability) { |
1028 |
|
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
1029 |
|
(coding_type != I_VOP)) { |
1030 |
|
BitstreamSkip(bs, 1); // vop_shape_coding_type |
1031 |
} |
} |
1032 |
else if (start_code == USERDATA_START_CODE) |
} |
1033 |
{ |
return coding_type; |
1034 |
// DEBUG("user_data"); |
|
1035 |
|
} else if (start_code == USERDATA_START_CODE) { |
1036 |
|
char tmp[256]; |
1037 |
|
int i, version, build; |
1038 |
|
char packed; |
1039 |
|
|
1040 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
1041 |
|
|
1042 |
|
tmp[0] = BitstreamShowBits(bs, 8); |
1043 |
|
|
1044 |
|
for(i = 1; i < 256; i++){ |
1045 |
|
tmp[i] = (BitstreamShowBits(bs, 16) & 0xFF); |
1046 |
|
|
1047 |
|
if(tmp[i] == 0) |
1048 |
|
break; |
1049 |
|
|
1050 |
|
BitstreamSkip(bs, 8); |
1051 |
} |
} |
1052 |
else // start_code == ? |
|
1053 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>: %s\n", tmp); |
1054 |
|
|
1055 |
|
/* divx detection */ |
1056 |
|
i = sscanf(tmp, "DivX%dBuild%d%c", &version, &build, &packed); |
1057 |
|
if (i < 2) |
1058 |
|
i = sscanf(tmp, "DivX%db%d%c", &version, &build, &packed); |
1059 |
|
|
1060 |
|
if (i >= 2) |
1061 |
{ |
{ |
1062 |
if (BitstreamShowBits(bs, 24) == 0x000001) |
dec->packed_mode = (i == 3 && packed == 'p'); |
1063 |
|
DPRINTF(DPRINTF_HEADER, "divx version=%i, build=%i packed=%i", |
1064 |
|
version, build, dec->packed_mode); |
1065 |
|
} |
1066 |
|
|
1067 |
|
} else // start_code == ? |
1068 |
{ |
{ |
1069 |
DEBUG1("*** WARNING: unknown start_code", BitstreamShowBits(bs, 32)); |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1070 |
|
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
1071 |
} |
} |
1072 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
1073 |
} |
} |
1074 |
} |
} |
1075 |
while ((BitstreamPos(bs) >> 3) < bs->length); |
while ((BitstreamPos(bs) >> 3) < bs->length); |
1076 |
|
|
1077 |
DEBUG("*** WARNING: no vop_start_code found"); |
//DPRINTF("*** WARNING: no vop_start_code found"); |
1078 |
return -1; /* ignore it */ |
return -1; /* ignore it */ |
1079 |
} |
} |
1080 |
|
|
1081 |
|
|
1082 |
/* write custom quant matrix */ |
/* write custom quant matrix */ |
1083 |
|
|
1084 |
static void bs_put_matrix(Bitstream * bs, const int16_t *matrix) |
static void |
1085 |
|
bs_put_matrix(Bitstream * bs, |
1086 |
|
const int16_t * matrix) |
1087 |
{ |
{ |
1088 |
int i, j; |
int i, j; |
1089 |
const int last = matrix[scan_tables[0][63]]; |
const int last = matrix[scan_tables[0][63]]; |
1090 |
|
|
1091 |
for (j = 63; j >= 0 && matrix[scan_tables[0][j - 1]] == last; j--) ; |
for (j = 63; j > 0 && matrix[scan_tables[0][j - 1]] == last; j--); |
1092 |
|
|
1093 |
for (i = 0; i <= j; i++) |
for (i = 0; i <= j; i++) { |
|
{ |
|
1094 |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
1095 |
} |
} |
1096 |
|
|
1097 |
if (j < 63) |
if (j < 63) { |
|
{ |
|
1098 |
BitstreamPutBits(bs, 0, 8); |
BitstreamPutBits(bs, 0, 8); |
1099 |
} |
} |
1100 |
} |
} |
1103 |
/* |
/* |
1104 |
write vol header |
write vol header |
1105 |
*/ |
*/ |
1106 |
void BitstreamWriteVolHeader(Bitstream * const bs, |
void |
1107 |
const MBParam * pParam) |
BitstreamWriteVolHeader(Bitstream * const bs, |
1108 |
{ |
const MBParam * pParam, |
1109 |
|
const FRAMEINFO * const frame) |
1110 |
|
{ |
1111 |
|
int vol_ver_id=1; |
1112 |
|
|
1113 |
|
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
1114 |
|
(pParam->global & XVID_GLOBAL_REDUCED)) |
1115 |
|
vol_ver_id = 2; |
1116 |
|
|
1117 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
1118 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1119 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VO_START_CODE, 27); |
1125 |
|
|
1126 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1127 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
1128 |
|
|
1129 |
|
if (vol_ver_id == 1) |
1130 |
|
{ |
1131 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
1132 |
|
} |
1133 |
|
else |
1134 |
|
{ |
1135 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
1136 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
1137 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
1138 |
|
} |
1139 |
|
|
1140 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
1141 |
BitstreamPutBit(bs, 0); // vol_control_parameters (0=not given) |
|
1142 |
|
BitstreamPutBit(bs, 1); // vol_control_parameters |
1143 |
|
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
1144 |
|
|
1145 |
|
if (pParam->max_bframes > 0) { |
1146 |
|
BitstreamPutBit(bs, 0); // low_delay |
1147 |
|
} else |
1148 |
|
{ |
1149 |
|
BitstreamPutBit(bs, 1); // low_delay |
1150 |
|
} |
1151 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
1152 |
|
|
1153 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
1154 |
|
|
1155 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1156 |
|
|
1157 |
/* time_increment_resolution; ignored by current decore versions |
/* time_inc_resolution; ignored by current decore versions |
1158 |
eg. 2fps res=2 inc=1 |
eg. 2fps res=2 inc=1 |
1159 |
25fps res=25 inc=1 |
25fps res=25 inc=1 |
1160 |
29.97fps res=30000 inc=1001 |
29.97fps res=30000 inc=1001 |
1161 |
*/ |
*/ |
1162 |
BitstreamPutBits(bs, 2, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
1163 |
|
|
1164 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1165 |
|
|
1166 |
// fixed_vop_rate |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
1167 |
BitstreamPutBit(bs, 0); |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
|
|
|
|
// fixed_time_increment: value=nth_of_sec, nbits = log2(resolution) |
|
|
// BitstreamPutBits(bs, 0, 15); |
|
1168 |
|
|
1169 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1170 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
1172 |
BitstreamPutBits(bs, pParam->height, 13); // height |
BitstreamPutBits(bs, pParam->height, 13); // height |
1173 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1174 |
|
|
1175 |
BitstreamPutBit(bs, pParam->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
1176 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
1177 |
BitstreamPutBit(bs, 0); // sprite_enable |
|
1178 |
BitstreamPutBit(bs, 0); // not_in_bit |
if (vol_ver_id != 1) |
1179 |
|
{ if (frame->global_flags & XVID_GMC) |
1180 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
1181 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
1182 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
1183 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
1184 |
|
|
1185 |
|
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
1186 |
|
for DivX5 compatability */ |
1187 |
|
|
1188 |
|
} else |
1189 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
1190 |
|
} |
1191 |
|
else |
1192 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
1193 |
|
|
1194 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
1195 |
|
|
1196 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
1197 |
BitstreamPutBit(bs, pParam->quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
1198 |
|
|
1199 |
if (pParam->quant_type) |
if (pParam->m_quant_type) { |
|
{ |
|
1200 |
BitstreamPutBit(bs, get_intra_matrix_status()); // load_intra_quant_mat |
BitstreamPutBit(bs, get_intra_matrix_status()); // load_intra_quant_mat |
1201 |
if (get_intra_matrix_status()) |
if (get_intra_matrix_status()) { |
|
{ |
|
1202 |
bs_put_matrix(bs, get_intra_matrix()); |
bs_put_matrix(bs, get_intra_matrix()); |
1203 |
} |
} |
1204 |
|
|
1205 |
BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat |
BitstreamPutBit(bs, get_inter_matrix_status()); // load_inter_quant_mat |
1206 |
if (get_inter_matrix_status()) |
if (get_inter_matrix_status()) { |
|
{ |
|
1207 |
bs_put_matrix(bs, get_inter_matrix()); |
bs_put_matrix(bs, get_inter_matrix()); |
1208 |
} |
} |
1209 |
|
|
1210 |
} |
} |
1211 |
|
|
1212 |
|
if (vol_ver_id != 1) { |
1213 |
|
if (pParam->m_quarterpel) |
1214 |
|
BitstreamPutBit(bs, 1); // quarterpel |
1215 |
|
else |
1216 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
1217 |
|
} |
1218 |
|
|
1219 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
1220 |
BitstreamPutBit(bs, 1); // resync_marker_disable |
BitstreamPutBit(bs, 1); // resync_marker_disable |
1221 |
BitstreamPutBit(bs, 0); // data_partitioned |
BitstreamPutBit(bs, 0); // data_partitioned |
1222 |
|
|
1223 |
|
if (vol_ver_id != 1) |
1224 |
|
{ |
1225 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
1226 |
|
|
1227 |
|
BitstreamPutBit(bs, (pParam->global & XVID_GLOBAL_REDUCED)?1:0); |
1228 |
|
/* reduced_resolution_vop_enabled */ |
1229 |
|
} |
1230 |
|
|
1231 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1232 |
|
|
1233 |
} |
} |
1234 |
|
|
1235 |
|
|
1236 |
/* |
/* |
1237 |
write vop header |
write vop header |
|
|
|
|
NOTE: doesnt handle bother with time_base & time_inc |
|
|
time_base = n seconds since last resync (eg. last iframe) |
|
|
time_inc = nth of a second since last resync |
|
|
(decoder uses these values to determine precise time since last resync) |
|
1238 |
*/ |
*/ |
1239 |
void BitstreamWriteVopHeader(Bitstream * const bs, |
void |
1240 |
const MBParam * pParam) |
BitstreamWriteVopHeader( |
1241 |
|
Bitstream * const bs, |
1242 |
|
const MBParam * pParam, |
1243 |
|
const FRAMEINFO * const frame, |
1244 |
|
int vop_coded) |
1245 |
{ |
{ |
1246 |
|
uint32_t i; |
1247 |
|
|
1248 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1249 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1250 |
|
|
1251 |
BitstreamPutBits(bs, pParam->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1252 |
|
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
1253 |
|
|
1254 |
// time_base = 0 write n x PutBit(1), PutBit(0) |
for (i = 0; i < frame->seconds; i++) { |
1255 |
BitstreamPutBits(bs, 0, 1); |
BitstreamPutBit(bs, 1); |
1256 |
|
} |
1257 |
|
BitstreamPutBit(bs, 0); |
1258 |
|
|
1259 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1260 |
|
|
1261 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
1262 |
BitstreamPutBits(bs, 1, 1); |
|
1263 |
|
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
1264 |
|
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
1265 |
|
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
1266 |
|
P_VOP ? 'P' : 'B');*/ |
1267 |
|
|
1268 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1269 |
|
|
1270 |
|
if (!vop_coded) { |
1271 |
|
BitstreamPutBits(bs, 0, 1); |
1272 |
|
return; |
1273 |
|
} |
1274 |
|
|
1275 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
1276 |
|
|
1277 |
if (pParam->coding_type != I_VOP) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1278 |
BitstreamPutBits(bs, pParam->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1279 |
|
|
1280 |
|
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1281 |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_REDUCED)?1:0); |
1282 |
|
|
1283 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
1284 |
|
|
1285 |
if (pParam->global_flags & XVID_INTERLACING) |
if (frame->global_flags & XVID_INTERLACING) { |
1286 |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
1287 |
|
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
1288 |
|
} |
1289 |
|
|
1290 |
|
if (frame->coding_type == S_VOP) { |
1291 |
|
if (1) { // no_of_sprite_warping_points>=1 |
1292 |
|
if (pParam->m_quarterpel) |
1293 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
1294 |
|
else |
1295 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
1296 |
|
WRITE_MARKER(); |
1297 |
|
|
1298 |
|
if (pParam->m_quarterpel) |
1299 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
1300 |
|
else |
1301 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
1302 |
|
WRITE_MARKER(); |
1303 |
|
|
1304 |
|
|
1305 |
|
if (pParam->m_quarterpel) |
1306 |
|
{ |
1307 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
1308 |
|
} |
1309 |
|
else |
1310 |
{ |
{ |
1311 |
BitstreamPutBit(bs, 1); // top field first |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
1312 |
BitstreamPutBit(bs, 0); // alternate vertical scan |
} |
1313 |
|
|
1314 |
} |
} |
1315 |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
1316 |
|
|
1317 |
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
1318 |
|
bs_put_spritetrajectory(bs, 0 ); |
1319 |
|
WRITE_MARKER(); |
1320 |
|
bs_put_spritetrajectory(bs, 0 ); |
1321 |
|
WRITE_MARKER(); |
1322 |
|
} |
1323 |
|
// no support for brightness_change! |
1324 |
|
} |
1325 |
|
|
1326 |
|
|
1327 |
BitstreamPutBits(bs, pParam->quant, 5); // quantizer |
DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); |
1328 |
|
|
1329 |
|
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
1330 |
|
|
1331 |
|
if (frame->coding_type != I_VOP) |
1332 |
|
BitstreamPutBits(bs, frame->fcode, 3); // forward_fixed_code |
1333 |
|
|
1334 |
|
if (frame->coding_type == B_VOP) |
1335 |
|
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
1336 |
|
|
1337 |
|
} |
1338 |
|
|
1339 |
|
void |
1340 |
|
BitstreamWriteUserData(Bitstream * const bs, |
1341 |
|
uint8_t * data, |
1342 |
|
const int length) |
1343 |
|
{ |
1344 |
|
int i; |
1345 |
|
|
1346 |
|
BitstreamPad(bs); |
1347 |
|
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
1348 |
|
|
1349 |
|
for (i = 0; i < length; i++) { |
1350 |
|
BitstreamPutBits(bs, data[i], 8); |
1351 |
|
} |
1352 |
|
|
|
if (pParam->coding_type != I_VOP) |
|
|
BitstreamPutBits(bs, pParam->fixed_code, 3); // fixed_code = [1,4] |
|
1353 |
} |
} |