125 |
// for BVOP addbits == max(fcode,bcode) - 1 |
// for BVOP addbits == max(fcode,bcode) - 1 |
126 |
// returns mbpos |
// returns mbpos |
127 |
int |
int |
128 |
read_video_packet_header(Bitstream *bs, int addbits) |
read_video_packet_header(Bitstream *bs, const int addbits, int * quant) |
129 |
{ |
{ |
130 |
int nbits; |
int nbits; |
131 |
int mbnum; |
int mbnum; |
|
int quant; |
|
132 |
int hec; |
int hec; |
133 |
|
|
134 |
nbits = NUMBITS_VP_RESYNC_MARKER; |
nbits = NUMBITS_VP_RESYNC_MARKER + addbits; |
135 |
|
|
136 |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
137 |
BitstreamSkip(bs, nbits); |
BitstreamSkip(bs, nbits); |
138 |
|
|
139 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
140 |
|
|
141 |
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
142 |
// hec |
// hec |
143 |
// vop_width |
// vop_width |
148 |
//} |
//} |
149 |
|
|
150 |
mbnum = BitstreamGetBits(bs, 9); |
mbnum = BitstreamGetBits(bs, 9); |
151 |
//printf("mbnum %i [%i,%i]\n", mbnum, mbnum % dec->mb_width, mbnum / dec->mb_width); |
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
152 |
|
|
153 |
// if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) |
// if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) |
154 |
quant = BitstreamGetBits(bs, 5); |
*quant = BitstreamGetBits(bs, 5); |
155 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
156 |
|
|
157 |
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
158 |
hec = BitstreamGetBit(bs); |
hec = BitstreamGetBit(bs); |
159 |
|
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
160 |
// if (hec) |
// if (hec) |
161 |
// .. decoder hec-header ... |
// .. decoder hec-header ... |
162 |
|
|
170 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
171 |
*/ |
*/ |
172 |
|
|
173 |
|
#define VIDOBJ_START_CODE_MASK 0x0000001f |
174 |
|
#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
175 |
|
|
176 |
int |
int |
177 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
178 |
DECODER * dec, |
DECODER * dec, |
194 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
195 |
|
|
196 |
if (start_code == VISOBJSEQ_START_CODE) { |
if (start_code == VISOBJSEQ_START_CODE) { |
197 |
// DPRINTF("visual_object_sequence"); |
|
198 |
|
int profile; |
199 |
|
|
200 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
201 |
|
|
202 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
203 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
204 |
|
|
205 |
|
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
206 |
|
|
207 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
208 |
|
|
209 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
210 |
|
|
211 |
|
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
212 |
|
|
213 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
214 |
//DPRINTF("visual_object"); |
|
215 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
216 |
|
|
217 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
218 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
219 |
{ |
{ |
220 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
221 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
222 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
223 |
} else { |
} else { |
224 |
vol_ver_id = 1; |
vol_ver_id = 1; |
226 |
|
|
227 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
228 |
{ |
{ |
229 |
//DPRINTF("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
230 |
return -1; |
return -1; |
231 |
} |
} |
232 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
235 |
|
|
236 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
237 |
{ |
{ |
238 |
//DPRINTF("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
239 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
240 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
241 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
242 |
{ |
{ |
243 |
//DPRINTF("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
244 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
245 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
246 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
247 |
} |
} |
248 |
} |
} |
249 |
} else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
250 |
|
|
251 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
252 |
|
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
253 |
|
|
254 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
255 |
} else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) { |
|
256 |
//DPRINTF("video_object_layer"); |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
257 |
|
|
258 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
259 |
|
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
260 |
|
|
261 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
262 |
|
|
263 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
265 |
// video_object_type_indication |
// video_object_type_indication |
266 |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
if (BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_SIMPLE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_MAIN && BitstreamShowBits(bs, 8) != 0) // BUGGY DIVX |
267 |
{ |
{ |
268 |
//DPRINTF("video_object_type_indication %i not supported ", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
269 |
// BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
270 |
return -1; |
return -1; |
271 |
} |
} |
272 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
274 |
|
|
275 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
276 |
{ |
{ |
277 |
//DPRINTF("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
278 |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
279 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
280 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
281 |
} else { |
} else { |
282 |
vol_ver_id = 1; |
vol_ver_id = 1; |
283 |
} |
} |
|
//DPRINTF("vol_ver_id %i", vol_ver_id); |
|
284 |
|
|
285 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
286 |
{ |
{ |
287 |
//DPRINTF("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
288 |
BitstreamSkip(bs, 8); // par_width |
BitstreamSkip(bs, 8); // par_width |
289 |
BitstreamSkip(bs, 8); // par_height |
BitstreamSkip(bs, 8); // par_height |
290 |
} |
} |
291 |
|
|
292 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
293 |
{ |
{ |
294 |
//DPRINTF("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
295 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
296 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
297 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
298 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
299 |
{ |
{ |
300 |
//DPRINTF("+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
301 |
BitstreamSkip(bs, 15); // first_half_bitrate |
BitstreamSkip(bs, 15); // first_half_bitrate |
302 |
READ_MARKER(); |
READ_MARKER(); |
303 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
BitstreamSkip(bs, 15); // latter_half_bitrate |
314 |
} |
} |
315 |
|
|
316 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
317 |
//DPRINTF("shape %i", dec->shape); |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
318 |
|
|
319 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
320 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
324 |
|
|
325 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
326 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
327 |
|
|
328 |
|
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", time_increment_resolution); |
329 |
|
|
330 |
time_increment_resolution--; |
time_increment_resolution--; |
331 |
//DPRINTF("time_increment_resolution = %i",time_increment_resolution); |
|
332 |
if (time_increment_resolution > 0) { |
if (time_increment_resolution > 0) { |
333 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
dec->time_inc_bits = log2bin(time_increment_resolution); |
334 |
} else { |
} else { |
335 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
336 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
337 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
338 |
} |
} |
341 |
|
|
342 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
343 |
{ |
{ |
344 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
345 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
346 |
} |
} |
347 |
|
|
352 |
|
|
353 |
READ_MARKER(); |
READ_MARKER(); |
354 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DPRINTF("width %i", width); |
|
355 |
READ_MARKER(); |
READ_MARKER(); |
356 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DPRINTF("height %i", height); |
|
357 |
READ_MARKER(); |
READ_MARKER(); |
358 |
|
|
359 |
|
DPRINTF(DPRINTF_HEADER, "width %i", width); |
360 |
|
DPRINTF(DPRINTF_HEADER, "height %i", height); |
361 |
|
|
362 |
if (width != dec->width || height != dec->height) { |
if (width != dec->width || height != dec->height) { |
363 |
//DPRINTF("FATAL: video dimension discrepancy ***"); |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
|
//DPRINTF("bitstream width/height %i x %i", width, height); |
|
|
//DPRINTF("param width/height %i x %i", dec->width, dec->height); |
|
364 |
return -1; |
return -1; |
365 |
} |
} |
366 |
|
|
367 |
} |
} |
368 |
|
|
369 |
if ((dec->interlacing = BitstreamGetBit(bs))) { |
dec->interlacing = BitstreamGetBit(bs); |
370 |
//DPRINTF("vol: interlacing"); |
DPRINTF(DPRINTF_HEADER, "interlace", dec->interlacing); |
|
} |
|
371 |
|
|
372 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
373 |
{ |
{ |
374 |
//DPRINTF("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
375 |
// TODO |
// TODO |
376 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
377 |
} |
} |
378 |
|
|
379 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
380 |
{ |
{ |
381 |
//DPRINTF("sprite_enable; not supported"); |
DPRINTF(DPRINTF_ERROR, "spriate_enabled not supported"); |
382 |
return -1; |
return -1; |
383 |
} |
} |
384 |
|
|
389 |
|
|
390 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
391 |
{ |
{ |
392 |
//DPRINTF("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
393 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
394 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
395 |
} else { |
} else { |
403 |
} |
} |
404 |
|
|
405 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
406 |
//DPRINTF("**** quant_type %i", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
407 |
|
|
408 |
if (dec->quant_type) { |
if (dec->quant_type) { |
409 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
410 |
{ |
{ |
411 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
412 |
|
|
413 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
414 |
|
|
415 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
416 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
417 |
} else |
} else |
421 |
{ |
{ |
422 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
423 |
|
|
424 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
425 |
|
|
426 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
427 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
428 |
} else |
} else |
429 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
430 |
|
|
431 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
432 |
// TODO |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
//DPRINTF("TODO: grayscale matrix stuff"); |
|
433 |
return -1; |
return -1; |
434 |
} |
} |
435 |
|
|
439 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
440 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
441 |
if (dec->quarterpel) { |
if (dec->quarterpel) { |
442 |
//DPRINTF("IGNORED/TODO: quarter_sample"); |
DPRINTF(DPRINTF_ERROR, "quarter_sample not supported"); |
443 |
} |
} |
444 |
} else { |
} else { |
445 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
447 |
|
|
448 |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
449 |
{ |
{ |
450 |
//DPRINTF("TODO: complexity_estimation header"); |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
|
// TODO |
|
451 |
return -1; |
return -1; |
452 |
} |
} |
453 |
|
|
454 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
BitstreamSkip(bs, 1); // resync_marker_disable |
|
{ |
|
|
//DPRINTF("IGNORED/TODO: !resync_marker_disable"); |
|
|
// TODO |
|
|
} |
|
455 |
|
|
456 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
457 |
{ |
{ |
458 |
//DPRINTF("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
459 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
460 |
} |
} |
461 |
|
|
462 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
463 |
if (BitstreamGetBit(bs)) // newpred_enable |
if (BitstreamGetBit(bs)) // newpred_enable |
464 |
{ |
{ |
465 |
//DPRINTF("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
466 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
467 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
468 |
} |
} |
469 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
470 |
{ |
{ |
471 |
//DPRINTF("TODO: reduced_resolution_vop_enable"); |
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
|
// TODO |
|
472 |
return -1; |
return -1; |
473 |
} |
} |
474 |
} |
} |
475 |
|
|
476 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
477 |
{ |
{ |
478 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
//DPRINTF("TODO: scalability"); |
|
479 |
return -1; |
return -1; |
480 |
} |
} |
481 |
} else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
483 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
484 |
if (BitstreamGetBit(bs)) // scalability |
if (BitstreamGetBit(bs)) // scalability |
485 |
{ |
{ |
486 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
//DPRINTF("TODO: scalability"); |
|
487 |
return -1; |
return -1; |
488 |
} |
} |
489 |
} |
} |
492 |
} |
} |
493 |
|
|
494 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
495 |
//DPRINTF("group_of_vop"); |
|
496 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
497 |
|
|
498 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
499 |
{ |
{ |
500 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
503 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
504 |
READ_MARKER(); |
READ_MARKER(); |
505 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
506 |
//DPRINTF("%ih %im %is", hours, minutes, seconds); |
|
507 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
508 |
} |
} |
509 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
510 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
511 |
|
|
512 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
513 |
//DPRINTF("vop_start_code"); |
|
514 |
|
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
515 |
|
|
516 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
517 |
|
|
518 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
519 |
//DPRINTF("coding_type %i", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
520 |
|
|
521 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
522 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) // time_base |
528 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
529 |
} |
} |
530 |
|
|
531 |
/* |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
532 |
DPRINTF("%c %i:%i", |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
533 |
|
|
534 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
535 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
536 |
time_incr, time_increment); |
time_incr, time_increment); |
|
*/ |
|
537 |
|
|
538 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
539 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
549 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * time_increment_resolution + time_increment; |
550 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
551 |
} |
} |
|
//DPRINTF("time_increment %i",time_increment); |
|
552 |
|
|
553 |
READ_MARKER(); |
READ_MARKER(); |
554 |
|
|
555 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
556 |
{ |
{ |
557 |
//DPRINTF("**NOT CODED**"); |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
558 |
return N_VOP; |
return N_VOP; |
559 |
} |
} |
560 |
|
|
567 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
568 |
(coding_type == P_VOP)) { |
(coding_type == P_VOP)) { |
569 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
570 |
//DPRINTF("rounding %i", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
571 |
} |
} |
572 |
|
|
573 |
/* if (reduced_resolution_enable) |
/* if (reduced_resolution_enable) |
588 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
589 |
READ_MARKER(); |
READ_MARKER(); |
590 |
|
|
591 |
//DPRINTF("vop_width/height %i x %i", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
592 |
//DPRINTF("ref %i x %i", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
593 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
594 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
595 |
|
|
596 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
597 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
607 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
608 |
|
|
609 |
if (dec->interlacing) { |
if (dec->interlacing) { |
610 |
if ((dec->top_field_first = BitstreamGetBit(bs))) { |
dec->top_field_first = BitstreamGetBit(bs); |
611 |
//DPRINTF("vop: top_field_first"); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
612 |
} |
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
613 |
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) { |
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
614 |
//DPRINTF("vop: alternate_vertical_scan"); |
|
|
} |
|
615 |
} |
} |
616 |
} |
} |
617 |
|
|
618 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
619 |
*quant = 1; |
*quant = 1; |
620 |
|
|
621 |
//DPRINTF("quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
622 |
|
|
623 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
624 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
625 |
|
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
626 |
} |
} |
627 |
|
|
628 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
629 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
630 |
|
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
631 |
} |
} |
632 |
if (!dec->scalability) { |
if (!dec->scalability) { |
633 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
636 |
} |
} |
637 |
} |
} |
638 |
return coding_type; |
return coding_type; |
639 |
|
|
640 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
641 |
//DPRINTF("user_data"); |
|
642 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>"); |
643 |
|
|
644 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
645 |
|
|
646 |
} else // start_code == ? |
} else // start_code == ? |
647 |
{ |
{ |
648 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
649 |
//DPRINTF("*** WARNING: unknown start_code %x", |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
|
// BitstreamShowBits(bs, 32)); |
|
650 |
} |
} |
651 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
652 |
} |
} |
810 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
811 |
#ifdef BFRAMES |
#ifdef BFRAMES |
812 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
813 |
DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
814 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
815 |
P_VOP ? 'P' : 'B'); |
P_VOP ? 'P' : 'B');*/ |
816 |
#else |
#else |
817 |
BitstreamPutBits(bs, 1, 1); |
BitstreamPutBits(bs, 1, 1); |
818 |
#endif |
#endif |