41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
|
* 11.07.2002 add VOP width & height return to dec when dec->width * |
45 |
|
* or dec->height is 0 (for use in examples/ex1.c) * |
46 |
|
* MinChen <chenm001@163.com> * |
47 |
|
* 22.05.2002 bs_put_matrix fix * |
48 |
|
* 20.05.2002 added BitstreamWriteUserData * |
49 |
|
* 19.06.2002 Fix a little bug in use custom quant matrix * |
50 |
|
* MinChen <chenm001@163.com> * |
51 |
* 08.05.2002 add low_delay support for B_VOP decode * |
* 08.05.2002 add low_delay support for B_VOP decode * |
52 |
* MinChen <chenm001@163.com> * |
* MinChen <chenm001@163.com> * |
53 |
* 06.05.2002 low_delay * |
* 06.05.2002 low_delay * |
60 |
* 30.02.2002 intra_dc_threshold support * |
* 30.02.2002 intra_dc_threshold support * |
61 |
* 04.12.2001 support for additional headers * |
* 04.12.2001 support for additional headers * |
62 |
* 16.12.2001 inital version * |
* 16.12.2001 inital version * |
63 |
* * |
* |
64 |
******************************************************************************/ |
******************************************************************************/ |
65 |
|
|
66 |
|
|
115 |
matrix[scan_tables[0][i++]] = value; |
matrix[scan_tables[0][i++]] = value; |
116 |
} |
} |
117 |
while (value != 0 && i < 64); |
while (value != 0 && i < 64); |
118 |
|
i--; // fix little bug at coeff not full |
119 |
|
|
120 |
while (i < 64) { |
while (i < 64) { |
121 |
matrix[scan_tables[0][i++]] = last; |
matrix[scan_tables[0][i++]] = last; |
122 |
} |
} |
123 |
} |
} |
124 |
|
|
125 |
|
|
126 |
|
|
127 |
|
// for PVOP addbits == fcode - 1 |
128 |
|
// for BVOP addbits == max(fcode,bcode) - 1 |
129 |
|
// returns mbpos |
130 |
|
int |
131 |
|
read_video_packet_header(Bitstream *bs, const int addbits, int * quant) |
132 |
|
{ |
133 |
|
int nbits; |
134 |
|
int mbnum; |
135 |
|
int hec; |
136 |
|
|
137 |
|
nbits = NUMBITS_VP_RESYNC_MARKER + addbits; |
138 |
|
|
139 |
|
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
140 |
|
BitstreamSkip(bs, nbits); |
141 |
|
|
142 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
143 |
|
|
144 |
|
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
145 |
|
// hec |
146 |
|
// vop_width |
147 |
|
// marker_bit |
148 |
|
// vop_height |
149 |
|
// marker_bit |
150 |
|
|
151 |
|
//} |
152 |
|
|
153 |
|
mbnum = BitstreamGetBits(bs, 9); |
154 |
|
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
155 |
|
|
156 |
|
// if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) |
157 |
|
*quant = BitstreamGetBits(bs, 5); |
158 |
|
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
159 |
|
|
160 |
|
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
161 |
|
hec = BitstreamGetBit(bs); |
162 |
|
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
163 |
|
// if (hec) |
164 |
|
// .. decoder hec-header ... |
165 |
|
|
166 |
|
return mbnum; |
167 |
|
} |
168 |
|
|
169 |
|
|
170 |
|
|
171 |
/* |
/* |
172 |
decode headers |
decode headers |
173 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
174 |
*/ |
*/ |
175 |
|
|
176 |
|
#define VIDOBJ_START_CODE_MASK 0x0000001f |
177 |
|
#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
178 |
|
|
179 |
int |
int |
180 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
181 |
DECODER * dec, |
DECODER * dec, |
197 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
198 |
|
|
199 |
if (start_code == VISOBJSEQ_START_CODE) { |
if (start_code == VISOBJSEQ_START_CODE) { |
200 |
// DEBUG("visual_object_sequence"); |
|
201 |
|
int profile; |
202 |
|
|
203 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
204 |
|
|
205 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
206 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
207 |
|
|
208 |
|
DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
209 |
|
|
210 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
211 |
|
|
212 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
213 |
|
|
214 |
|
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
215 |
|
|
216 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
217 |
// DEBUG("visual_object"); |
|
218 |
|
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
219 |
|
|
220 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
221 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
222 |
{ |
{ |
223 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
224 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
225 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
226 |
} else { |
} else { |
227 |
vol_ver_id = 1; |
vol_ver_id = 1; |
229 |
|
|
230 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
231 |
{ |
{ |
232 |
DEBUG("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
233 |
return -1; |
return -1; |
234 |
} |
} |
235 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
238 |
|
|
239 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
240 |
{ |
{ |
241 |
DEBUG("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
242 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
243 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
244 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
245 |
{ |
{ |
246 |
DEBUG("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
247 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
248 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
249 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
250 |
} |
} |
251 |
} |
} |
252 |
} else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
253 |
|
|
254 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
255 |
|
DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
256 |
|
|
257 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
258 |
} else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) { |
|
259 |
// DEBUG("video_object_layer"); |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
260 |
|
|
261 |
|
DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
262 |
|
DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
263 |
|
|
264 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
265 |
|
|
266 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
268 |
// video_object_type_indication |
// video_object_type_indication |
269 |
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 |
270 |
{ |
{ |
271 |
DEBUG1("video_object_type_indication not supported", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
272 |
BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
273 |
return -1; |
return -1; |
274 |
} |
} |
277 |
|
|
278 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
279 |
{ |
{ |
280 |
DEBUG("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
281 |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
282 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
283 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
284 |
} else { |
} else { |
285 |
vol_ver_id = 1; |
vol_ver_id = 1; |
286 |
} |
} |
|
//DEBUGI("vol_ver_id", vol_ver_id); |
|
287 |
|
|
288 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
289 |
{ |
{ |
290 |
DEBUG("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
291 |
BitstreamSkip(bs, 8); // par_width |
BitstreamSkip(bs, 8); // par_width |
292 |
BitstreamSkip(bs, 8); // par_height |
BitstreamSkip(bs, 8); // par_height |
293 |
} |
} |
294 |
|
|
295 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
296 |
{ |
{ |
297 |
DEBUG("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
298 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
299 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
300 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
301 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
302 |
{ |
{ |
303 |
DEBUG("+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
304 |
BitstreamSkip(bs, 15); // first_half_bitrate |
BitstreamSkip(bs, 15); // first_half_bitrate |
305 |
READ_MARKER(); |
READ_MARKER(); |
306 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
BitstreamSkip(bs, 15); // latter_half_bitrate |
317 |
} |
} |
318 |
|
|
319 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
320 |
// DEBUG1("shape", dec->shape); |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
321 |
|
|
322 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
323 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
327 |
|
|
328 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
329 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
330 |
time_increment_resolution--; |
|
331 |
//DEBUG1("time_increment_resolution=",time_increment_resolution); |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", time_increment_resolution); |
332 |
|
|
333 |
|
// time_increment_resolution--; |
334 |
|
|
335 |
if (time_increment_resolution > 0) { |
if (time_increment_resolution > 0) { |
336 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
dec->time_inc_bits = log2bin(time_increment_resolution-1); |
337 |
} else { |
} else { |
338 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
339 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
340 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
341 |
} |
} |
344 |
|
|
345 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
346 |
{ |
{ |
347 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
348 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
349 |
} |
} |
350 |
|
|
355 |
|
|
356 |
READ_MARKER(); |
READ_MARKER(); |
357 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DEBUGI("width", width); |
|
358 |
READ_MARKER(); |
READ_MARKER(); |
359 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DEBUGI("height", height); |
|
360 |
READ_MARKER(); |
READ_MARKER(); |
361 |
|
|
362 |
|
DPRINTF(DPRINTF_HEADER, "width %i", width); |
363 |
|
DPRINTF(DPRINTF_HEADER, "height %i", height); |
364 |
|
|
365 |
|
// for auto set width & height |
366 |
|
if (dec->width == 0) |
367 |
|
dec->width = width; |
368 |
|
if (dec->height == 0) |
369 |
|
dec->height = height; |
370 |
|
|
371 |
if (width != dec->width || height != dec->height) { |
if (width != dec->width || height != dec->height) { |
372 |
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); |
|
373 |
return -1; |
return -1; |
374 |
} |
} |
375 |
|
|
376 |
} |
} |
377 |
|
|
378 |
if ((dec->interlacing = BitstreamGetBit(bs))) { |
dec->interlacing = BitstreamGetBit(bs); |
379 |
DEBUG("vol: interlacing"); |
DPRINTF(DPRINTF_HEADER, "interlace", dec->interlacing); |
|
} |
|
380 |
|
|
381 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
382 |
{ |
{ |
383 |
DEBUG("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
384 |
// TODO |
// TODO |
385 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
386 |
} |
} |
387 |
|
|
388 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
389 |
{ |
{ |
390 |
DEBUG("sprite_enable; not supported"); |
DPRINTF(DPRINTF_ERROR, "spriate_enabled not supported"); |
391 |
return -1; |
return -1; |
392 |
} |
} |
393 |
|
|
398 |
|
|
399 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
400 |
{ |
{ |
401 |
DEBUG("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
402 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
403 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
404 |
} else { |
} else { |
412 |
} |
} |
413 |
|
|
414 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
415 |
// DEBUG1("**** quant_type", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
416 |
|
|
417 |
if (dec->quant_type) { |
if (dec->quant_type) { |
418 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
419 |
{ |
{ |
420 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
421 |
|
|
422 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
423 |
|
|
424 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
425 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
426 |
} else |
} else |
430 |
{ |
{ |
431 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
432 |
|
|
433 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
434 |
|
|
435 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
436 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
437 |
} else |
} else |
438 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
439 |
|
|
440 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
441 |
// TODO |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
DEBUG("TODO: grayscale matrix stuff"); |
|
442 |
return -1; |
return -1; |
443 |
} |
} |
444 |
|
|
446 |
|
|
447 |
|
|
448 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
449 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
DEBUG("QUARTERPEL BITSTREAM"); |
450 |
if (dec->quarterpel) { |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
|
DEBUG("IGNORED/TODO: quarter_sample"); |
|
451 |
} |
} |
452 |
} else { |
else |
453 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
454 |
} |
|
455 |
|
|
456 |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
457 |
{ |
{ |
458 |
DEBUG("TODO: complexity_estimation header"); |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
|
// TODO |
|
459 |
return -1; |
return -1; |
460 |
} |
} |
461 |
|
|
462 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
BitstreamSkip(bs, 1); // resync_marker_disable |
|
{ |
|
|
DEBUG("IGNORED/TODO: !resync_marker_disable"); |
|
|
// TODO |
|
|
} |
|
463 |
|
|
464 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
465 |
{ |
{ |
466 |
DEBUG("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
467 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
468 |
} |
} |
469 |
|
|
470 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
471 |
if (BitstreamGetBit(bs)) // newpred_enable |
if (BitstreamGetBit(bs)) // newpred_enable |
472 |
{ |
{ |
473 |
DEBUG("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
474 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
475 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
476 |
} |
} |
477 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
478 |
{ |
{ |
479 |
DEBUG("TODO: reduced_resolution_vop_enable"); |
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
|
// TODO |
|
480 |
return -1; |
return -1; |
481 |
} |
} |
482 |
} |
} |
483 |
|
|
484 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
485 |
{ |
{ |
486 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
DEBUG("TODO: scalability"); |
|
487 |
return -1; |
return -1; |
488 |
} |
} |
489 |
} else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
491 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
492 |
if (BitstreamGetBit(bs)) // scalability |
if (BitstreamGetBit(bs)) // scalability |
493 |
{ |
{ |
494 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
DEBUG("TODO: scalability"); |
|
495 |
return -1; |
return -1; |
496 |
} |
} |
497 |
} |
} |
500 |
} |
} |
501 |
|
|
502 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
503 |
// DEBUG("group_of_vop"); |
|
504 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
505 |
|
|
506 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
507 |
{ |
{ |
508 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
511 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
512 |
READ_MARKER(); |
READ_MARKER(); |
513 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
514 |
// DEBUG3("hms", hours, minutes, seconds); |
|
515 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
516 |
} |
} |
517 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
518 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
519 |
|
|
520 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
521 |
// DEBUG("vop_start_code"); |
|
522 |
|
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
523 |
|
|
524 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
525 |
|
|
526 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
527 |
//DEBUG1("coding_type", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
528 |
|
|
529 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
530 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) // time_base |
532 |
|
|
533 |
READ_MARKER(); |
READ_MARKER(); |
534 |
|
|
|
//DEBUG1("time_inc_bits", dec->time_inc_bits); |
|
|
//DEBUG1("vop_time_incr", BitstreamShowBits(bs, dec->time_inc_bits)); |
|
535 |
if (dec->time_inc_bits) { |
if (dec->time_inc_bits) { |
|
//BitstreamSkip(bs, dec->time_inc_bits); // vop_time_increment |
|
536 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
537 |
} |
} |
538 |
|
|
539 |
|
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
540 |
|
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
541 |
|
|
542 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
543 |
|
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
544 |
|
time_incr, time_increment); |
545 |
|
|
546 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
547 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
548 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
549 |
dec->time = |
dec->time = time_increment; |
550 |
dec->time_base * time_increment_resolution + |
|
551 |
|
/* dec->time_base * time_increment_resolution + |
552 |
time_increment; |
time_increment; |
553 |
dec->time_pp = (uint32_t) (dec->time - dec->last_non_b_time); |
*/ dec->time_pp = (uint32_t) |
554 |
|
(time_increment_resolution + dec->time - dec->last_non_b_time)%time_increment_resolution; |
555 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
556 |
} else { |
} else { |
557 |
dec->time = |
dec->time = time_increment; |
558 |
|
/* |
559 |
(dec->last_time_base + |
(dec->last_time_base + |
560 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * time_increment_resolution + time_increment; |
561 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
*/ |
562 |
|
dec->time_bp = (uint32_t) |
563 |
|
(time_increment_resolution + dec->last_non_b_time - dec->time)%time_increment_resolution; |
564 |
} |
} |
|
//DEBUG1("time_increment=",time_increment); |
|
565 |
|
|
566 |
READ_MARKER(); |
READ_MARKER(); |
567 |
|
|
568 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
569 |
{ |
{ |
570 |
|
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
571 |
return N_VOP; |
return N_VOP; |
572 |
} |
} |
573 |
|
|
580 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
581 |
(coding_type == P_VOP)) { |
(coding_type == P_VOP)) { |
582 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
583 |
//DEBUG1("rounding", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
584 |
} |
} |
585 |
|
|
586 |
/* if (reduced_resolution_enable) |
/* if (reduced_resolution_enable) |
601 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
602 |
READ_MARKER(); |
READ_MARKER(); |
603 |
|
|
604 |
// DEBUG2("vop_width/height", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
605 |
// DEBUG2("ref ", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
606 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
607 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
608 |
|
|
609 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
610 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
620 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
621 |
|
|
622 |
if (dec->interlacing) { |
if (dec->interlacing) { |
623 |
if ((dec->top_field_first = BitstreamGetBit(bs))) { |
dec->top_field_first = BitstreamGetBit(bs); |
624 |
DEBUG("vop: top_field_first"); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
625 |
} |
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
626 |
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) { |
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
627 |
DEBUG("vop: alternate_vertical_scan"); |
|
|
} |
|
628 |
} |
} |
629 |
} |
} |
630 |
|
|
631 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
632 |
*quant = 1; |
*quant = 1; |
633 |
|
|
634 |
//DEBUG1("quant", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
635 |
|
|
636 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
637 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
638 |
|
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
639 |
} |
} |
640 |
|
|
641 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
642 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
643 |
|
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
644 |
} |
} |
645 |
if (!dec->scalability) { |
if (!dec->scalability) { |
646 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
649 |
} |
} |
650 |
} |
} |
651 |
return coding_type; |
return coding_type; |
652 |
|
|
653 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
654 |
// DEBUG("user_data"); |
|
655 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>"); |
656 |
|
|
657 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
658 |
|
|
659 |
} else // start_code == ? |
} else // start_code == ? |
660 |
{ |
{ |
661 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
662 |
DEBUG1("*** WARNING: unknown start_code", |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
|
BitstreamShowBits(bs, 32)); |
|
663 |
} |
} |
664 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
665 |
} |
} |
666 |
} |
} |
667 |
while ((BitstreamPos(bs) >> 3) < bs->length); |
while ((BitstreamPos(bs) >> 3) < bs->length); |
668 |
|
|
669 |
DEBUG("*** WARNING: no vop_start_code found"); |
//DPRINTF("*** WARNING: no vop_start_code found"); |
670 |
return -1; /* ignore it */ |
return -1; /* ignore it */ |
671 |
} |
} |
672 |
|
|
680 |
int i, j; |
int i, j; |
681 |
const int last = matrix[scan_tables[0][63]]; |
const int last = matrix[scan_tables[0][63]]; |
682 |
|
|
683 |
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--); |
684 |
|
|
685 |
for (i = 0; i <= j; i++) { |
for (i = 0; i <= j; i++) { |
686 |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
BitstreamPutBits(bs, matrix[scan_tables[0][i]], 8); |
714 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
715 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
716 |
|
|
|
#ifdef BFRAMES |
|
|
if (pParam->max_bframes > 0) { |
|
|
dprintf("low_delay=1"); |
|
717 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); // vol_control_parameters |
718 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
719 |
|
|
720 |
|
#ifdef BFRAMES |
721 |
|
if (pParam->max_bframes > 0) { |
722 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); // low_delay |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
|
723 |
} else |
} else |
724 |
#endif |
#endif |
725 |
{ |
{ |
726 |
BitstreamPutBits(bs, 0, 1); // vol_control_parameters (0=not given) |
BitstreamPutBit(bs, 1); // low_delay |
727 |
} |
} |
728 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
729 |
|
|
730 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
731 |
|
|
739 |
#ifdef BFRAMES |
#ifdef BFRAMES |
740 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
741 |
#else |
#else |
742 |
BitstreamPutBits(bs, 2, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
743 |
#endif |
#endif |
744 |
|
|
745 |
WRITE_MARKER(); |
WRITE_MARKER(); |
746 |
|
|
747 |
// fixed_vop_rate |
#ifdef BFRAMES |
748 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
749 |
|
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
750 |
// fixed_time_increment: value=nth_of_sec, nbits = log2(resolution) |
#else |
751 |
// BitstreamPutBits(bs, 0, 15); |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
752 |
|
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
753 |
|
#endif |
754 |
|
|
755 |
WRITE_MARKER(); |
WRITE_MARKER(); |
756 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
797 |
void |
void |
798 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader(Bitstream * const bs, |
799 |
const MBParam * pParam, |
const MBParam * pParam, |
800 |
const FRAMEINFO * frame) |
const FRAMEINFO * frame, |
801 |
|
int vop_coded) |
802 |
{ |
{ |
|
#ifdef BFRAMES |
|
803 |
uint32_t i; |
uint32_t i; |
804 |
#endif |
|
805 |
BitstreamPad(bs); |
BitstreamPad(bs); |
806 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
807 |
|
|
814 |
} |
} |
815 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
816 |
#else |
#else |
817 |
BitstreamPutBits(bs, 0, 1); |
for (i = 0; i < frame->seconds; i++) { |
818 |
|
BitstreamPutBit(bs, 1); |
819 |
|
} |
820 |
|
BitstreamPutBit(bs, 0); |
821 |
|
// BitstreamPutBits(bs, 0, 1); |
822 |
#endif |
#endif |
823 |
|
|
824 |
WRITE_MARKER(); |
WRITE_MARKER(); |
826 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
827 |
#ifdef BFRAMES |
#ifdef BFRAMES |
828 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
829 |
dprintf("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
830 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
831 |
P_VOP ? 'P' : 'B'); |
P_VOP ? 'P' : 'B');*/ |
832 |
#else |
#else |
833 |
BitstreamPutBits(bs, 1, 1); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
834 |
|
// BitstreamPutBits(bs, 1, 1); |
835 |
#endif |
#endif |
836 |
|
|
837 |
WRITE_MARKER(); |
WRITE_MARKER(); |
838 |
|
|
839 |
|
if (!vop_coded) { |
840 |
|
BitstreamPutBits(bs, 0, 1); |
841 |
|
return; |
842 |
|
} |
843 |
|
|
844 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
845 |
|
|
846 |
if (frame->coding_type == P_VOP) |
if (frame->coding_type == P_VOP) |
862 |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
BitstreamPutBits(bs, frame->bcode, 3); // backward_fixed_code |
863 |
|
|
864 |
} |
} |
865 |
|
|
866 |
|
|
867 |
|
void |
868 |
|
BitstreamWriteUserData(Bitstream * const bs, |
869 |
|
uint8_t * data, |
870 |
|
const int length) |
871 |
|
{ |
872 |
|
int i; |
873 |
|
|
874 |
|
BitstreamPad(bs); |
875 |
|
BitstreamPutBits(bs, USERDATA_START_CODE, 32); |
876 |
|
|
877 |
|
for (i = 0; i < length; i++) { |
878 |
|
BitstreamPutBits(bs, data[i], 8); |
879 |
|
} |
880 |
|
|
881 |
|
} |