41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
|
* 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 * |
* 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) * |
* or dec->height is 0 (for use in examples/ex1.c) * |
48 |
* MinChen <chenm001@163.com> * |
* MinChen <chenm001@163.com> * |
62 |
* 30.02.2002 intra_dc_threshold support * |
* 30.02.2002 intra_dc_threshold support * |
63 |
* 04.12.2001 support for additional headers * |
* 04.12.2001 support for additional headers * |
64 |
* 16.12.2001 inital version * |
* 16.12.2001 inital version * |
65 |
* |
* * |
66 |
******************************************************************************/ |
******************************************************************************/ |
67 |
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68 |
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69 |
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#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 |
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75 |
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76 |
static uint32_t __inline |
static uint32_t __inline |
132 |
// for BVOP addbits == max(fcode,bcode) - 1 |
// for BVOP addbits == max(fcode,bcode) - 1 |
133 |
// returns mbpos |
// returns mbpos |
134 |
int |
int |
135 |
read_video_packet_header(Bitstream *bs, const int addbits, int * quant) |
read_video_packet_header(Bitstream *bs, |
136 |
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DECODER * dec, |
137 |
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const int addbits, |
138 |
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int * quant, |
139 |
|
int * fcode_forward, |
140 |
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int * fcode_backward, |
141 |
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int * intra_dc_threshold) |
142 |
{ |
{ |
143 |
int nbits; |
int startcode_bits = NUMBITS_VP_RESYNC_MARKER + addbits; |
144 |
|
int mbnum_bits = log2bin(dec->mb_width * dec->mb_height - 1); |
145 |
int mbnum; |
int mbnum; |
146 |
int hec; |
int hec = 0; |
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nbits = NUMBITS_VP_RESYNC_MARKER + addbits; |
|
147 |
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|
148 |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
149 |
BitstreamSkip(bs, nbits); |
BitstreamSkip(bs, startcode_bits); |
150 |
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|
151 |
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
152 |
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|
153 |
// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
154 |
// hec |
{ |
155 |
// vop_width |
hec = BitstreamGetBit(bs); /* header_extension_code */ |
156 |
// marker_bit |
if (hec && !(dec->sprite_enable == SPRITE_STATIC /* && current_coding_type = I_VOP */)) |
157 |
// vop_height |
{ |
158 |
// marker_bit |
BitstreamSkip(bs, 13); /* vop_width */ |
159 |
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READ_MARKER(); |
160 |
//} |
BitstreamSkip(bs, 13); /* vop_height */ |
161 |
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READ_MARKER(); |
162 |
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BitstreamSkip(bs, 13); /* vop_horizontal_mc_spatial_ref */ |
163 |
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READ_MARKER(); |
164 |
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BitstreamSkip(bs, 13); /* vop_vertical_mc_spatial_ref */ |
165 |
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READ_MARKER(); |
166 |
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} |
167 |
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} |
168 |
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169 |
mbnum = BitstreamGetBits(bs, 9); |
mbnum = BitstreamGetBits(bs, mbnum_bits); /* macroblock_number */ |
170 |
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
171 |
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|
172 |
// if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
173 |
*quant = BitstreamGetBits(bs, 5); |
{ |
174 |
|
*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
175 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
176 |
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} |
177 |
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178 |
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if (dec->shape == VIDOBJLAY_SHAPE_RECTANGULAR) |
179 |
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hec = BitstreamGetBit(bs); /* header_extension_code */ |
180 |
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181 |
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// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
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hec = BitstreamGetBit(bs); |
|
182 |
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
183 |
// if (hec) |
if (hec) |
184 |
// .. decoder hec-header ... |
{ |
185 |
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int time_base; |
186 |
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int time_increment; |
187 |
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int coding_type; |
188 |
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189 |
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for (time_base=0; BitstreamGetBit(bs)!=0; time_base++); /* modulo_time_base */ |
190 |
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READ_MARKER(); |
191 |
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if (dec->time_inc_bits) |
192 |
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time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); /* vop_time_increment */ |
193 |
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READ_MARKER(); |
194 |
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DPRINTF(DPRINTF_HEADER,"time %i:%i", time_base, time_increment); |
195 |
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196 |
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coding_type = BitstreamGetBits(bs, 2); |
197 |
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DPRINTF(DPRINTF_HEADER,"coding_type %i", coding_type); |
198 |
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|
199 |
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if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
200 |
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{ |
201 |
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BitstreamSkip(bs, 1); /* change_conv_ratio_disable */ |
202 |
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if (coding_type != I_VOP) |
203 |
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BitstreamSkip(bs, 1); /* vop_shape_coding_type */ |
204 |
|
} |
205 |
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|
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 |
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|
222 |
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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; |
return mbnum; |
253 |
} |
} |
254 |
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255 |
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256 |
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257 |
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|
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 |
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|
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 |
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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 |
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|
308 |
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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 |
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|
320 |
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|
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 |
425 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
426 |
DECODER * dec, |
DECODER * dec, |
427 |
uint32_t * rounding, |
uint32_t * rounding, |
428 |
|
uint32_t * reduced_resolution, |
429 |
uint32_t * quant, |
uint32_t * quant, |
430 |
uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
431 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
432 |
uint32_t * intra_dc_threshold) |
uint32_t * intra_dc_threshold, |
433 |
|
VECTOR * gmc_mv) |
434 |
{ |
{ |
435 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
|
static uint32_t time_increment_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; |
uint32_t time_incr = 0; |
439 |
int32_t time_increment; |
int32_t time_increment; |
440 |
|
int resize = 0; |
441 |
|
|
442 |
do { |
do { |
443 |
|
|
444 |
BitstreamByteAlign(bs); |
BitstreamByteAlign(bs); |
445 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
446 |
|
|
514 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
515 |
|
|
516 |
// video_object_type_indication |
// video_object_type_indication |
517 |
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 && |
518 |
|
BitstreamShowBits(bs, 8) != VIDOBJLAY_TYPE_CORE && |
519 |
|
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 |
523 |
{ |
{ |
524 |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
525 |
BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
538 |
vol_ver_id = 1; |
vol_ver_id = 1; |
539 |
} |
} |
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 |
DPRINTF(DPRINTF_HEADER, "+ 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 |
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 |
574 |
|
|
575 |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
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) { |
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 |
585 |
READ_MARKER(); |
READ_MARKER(); |
586 |
|
|
587 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
588 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
dec->time_inc_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
589 |
|
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", dec->time_inc_resolution); |
|
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", time_increment_resolution); |
|
590 |
|
|
591 |
time_increment_resolution--; |
// dec->time_inc_resolution--; |
592 |
|
|
593 |
if (time_increment_resolution > 0) { |
if (dec->time_inc_resolution > 0) { |
594 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
dec->time_inc_bits = log2bin(dec->time_inc_resolution-1); |
595 |
} else { |
} 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 |
620 |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
621 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
622 |
|
|
623 |
// for auto set width & height |
if (dec->width != width || dec->height != height) |
624 |
if (dec->width == 0) |
{ |
625 |
dec->width = width; |
if (dec->fixed_dimensions) |
626 |
if (dec->height == 0) |
{ |
|
dec->height = height; |
|
|
|
|
|
if (width != dec->width || height != dec->height) { |
|
627 |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
DPRINTF(DPRINTF_ERROR, "XVID_DEC_PARAM width/height does not match bitstream"); |
628 |
return -1; |
return -1; |
629 |
} |
} |
630 |
|
resize = 1; |
631 |
|
dec->width = width; |
632 |
|
dec->height = height; |
633 |
|
} |
634 |
} |
} |
635 |
|
|
636 |
dec->interlacing = BitstreamGetBit(bs); |
dec->interlacing = BitstreamGetBit(bs); |
637 |
DPRINTF(DPRINTF_HEADER, "interlace", dec->interlacing); |
DPRINTF(DPRINTF_HEADER, "interlacing %i", dec->interlacing); |
638 |
|
|
639 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
640 |
{ |
{ |
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 |
DPRINTF(DPRINTF_ERROR, "spriate_enabled not supported"); |
int low_latency_sprite_enable; |
651 |
return -1; |
|
652 |
|
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 && |
if (vol_ver_id != 1 && |
728 |
|
|
729 |
|
|
730 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
731 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
732 |
if (dec->quarterpel) { |
DPRINTF(DPRINTF_HEADER,"quarterpel %i", dec->quarterpel); |
|
DPRINTF(DPRINTF_ERROR, "quarter_sample not supported"); |
|
733 |
} |
} |
734 |
} else { |
else |
735 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
|
} |
|
736 |
|
|
737 |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
|
738 |
|
dec->complexity_estimation_disable = BitstreamGetBit(bs); /* complexity estimation disable */ |
739 |
|
if (!dec->complexity_estimation_disable) |
740 |
{ |
{ |
741 |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
read_vol_complexity_estimation_header(bs, dec); |
|
return -1; |
|
742 |
} |
} |
743 |
|
|
744 |
BitstreamSkip(bs, 1); // resync_marker_disable |
BitstreamSkip(bs, 1); // resync_marker_disable |
750 |
} |
} |
751 |
|
|
752 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
753 |
if (BitstreamGetBit(bs)) // newpred_enable |
dec->newpred_enable = BitstreamGetBit(bs); |
754 |
|
if (dec->newpred_enable) // newpred_enable |
755 |
{ |
{ |
756 |
DPRINTF(DPRINTF_HEADER, "+ 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); |
|
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
|
|
return -1; |
|
762 |
} |
} |
763 |
|
else |
764 |
|
{ |
765 |
|
dec->newpred_enable = 0; |
766 |
|
dec->reduced_resolution_enable = 0; |
767 |
} |
} |
768 |
|
|
769 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
770 |
|
if (dec->scalability) |
771 |
{ |
{ |
772 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
773 |
|
BitstreamSkip(bs, 1); /* hierarchy_type */ |
774 |
|
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; |
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 |
if (BitstreamGetBit(bs)) // scalability |
dec->scalability = BitstreamGetBit(bs); /* scalability */ |
795 |
|
if (dec->scalability) |
796 |
{ |
{ |
797 |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
798 |
|
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 |
|
|
812 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
813 |
|
|
814 |
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
850 |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
851 |
|
|
852 |
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
853 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : coding_type == B_VOP ? 'B' : 'S', |
854 |
time_incr, time_increment); |
time_incr, time_increment); |
855 |
|
|
856 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
857 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
858 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
859 |
dec->time = |
dec->time = time_increment; |
860 |
dec->time_base * time_increment_resolution + |
|
861 |
|
/* dec->time_base * dec->time_inc_resolution + |
862 |
time_increment; |
time_increment; |
863 |
dec->time_pp = (uint32_t) (dec->time - dec->last_non_b_time); |
*/ 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; |
dec->last_non_b_time = dec->time; |
866 |
} else { |
} else { |
867 |
dec->time = |
dec->time = time_increment; |
868 |
|
/* |
869 |
(dec->last_time_base + |
(dec->last_time_base + |
870 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * dec->time_inc_resolution + time_increment; |
871 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
*/ |
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(); |
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 |
|
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> |
// fix a little bug by MinChen <chenm002@163.com> |
902 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
903 |
(coding_type == P_VOP)) { |
( (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 |
DPRINTF(DPRINTF_HEADER, "rounding %i", *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 |
|
|
936 |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
937 |
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
938 |
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
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) { |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) { |
949 |
|
|
950 |
|
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 = |
957 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
958 |
|
|
959 |
|
dec->top_field_first = 0; |
960 |
|
dec->alternate_vertical_scan = 0; |
961 |
|
|
962 |
if (dec->interlacing) { |
if (dec->interlacing) { |
963 |
dec->top_field_first = BitstreamGetBit(bs); |
dec->top_field_first = BitstreamGetBit(bs); |
964 |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
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 |
|
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 |
|
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 |
|
// XXX: brightness_change_factor() |
1006 |
|
} |
1007 |
|
if (dec->sprite_enable == SPRITE_STATIC) |
1008 |
|
{ |
1009 |
|
// XXX: todo |
1010 |
|
} |
1011 |
|
|
1012 |
|
} |
1013 |
|
|
1014 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
1015 |
*quant = 1; |
*quant = 1; |
|
|
|
1016 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
1017 |
|
|
1018 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
1033 |
return coding_type; |
return coding_type; |
1034 |
|
|
1035 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
1036 |
|
char tmp[256]; |
1037 |
DPRINTF(DPRINTF_STARTCODE, "<user_data>"); |
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 |
|
|
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 |
|
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 == ? |
} else // start_code == ? |
1068 |
{ |
{ |
1069 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
1106 |
void |
void |
1107 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
1108 |
const MBParam * pParam, |
const MBParam * pParam, |
1109 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame) |
1110 |
{ |
{ |
1111 |
|
int vol_ver_id=1; |
1112 |
|
|
1113 |
|
if ( (pParam->m_quarterpel) || (frame->global_flags & XVID_GMC) ) |
1114 |
|
vol_ver_id = 2; |
1115 |
|
|
1116 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
1117 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1118 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VO_START_CODE, 27); |
1124 |
|
|
1125 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1126 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
1127 |
|
|
1128 |
|
if (vol_ver_id == 1) |
1129 |
|
{ |
1130 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
1131 |
|
} |
1132 |
|
else |
1133 |
|
{ |
1134 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
1135 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
1136 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
1137 |
|
} |
1138 |
|
|
1139 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
1140 |
|
|
|
#ifdef BFRAMES |
|
|
if (pParam->max_bframes > 0) { |
|
|
//DPRINTF("low_delay=1"); |
|
1141 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); // vol_control_parameters |
1142 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
1143 |
|
|
1144 |
|
if (pParam->max_bframes > 0) { |
1145 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); // low_delay |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
|
1146 |
} else |
} else |
|
#endif |
|
1147 |
{ |
{ |
1148 |
BitstreamPutBits(bs, 0, 1); // vol_control_parameters (0=not given) |
BitstreamPutBit(bs, 1); // low_delay |
1149 |
} |
} |
1150 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
1151 |
|
|
1152 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
1153 |
|
|
1154 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1155 |
|
|
1156 |
/* time_increment_resolution; ignored by current decore versions |
/* time_inc_resolution; ignored by current decore versions |
1157 |
eg. 2fps res=2 inc=1 |
eg. 2fps res=2 inc=1 |
1158 |
25fps res=25 inc=1 |
25fps res=25 inc=1 |
1159 |
29.97fps res=30000 inc=1001 |
29.97fps res=30000 inc=1001 |
1160 |
*/ |
*/ |
|
#ifdef BFRAMES |
|
1161 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
|
#else |
|
|
BitstreamPutBits(bs, 2, 16); |
|
|
#endif |
|
1162 |
|
|
1163 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1164 |
|
|
|
#ifdef BFRAMES |
|
1165 |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
1166 |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
|
#else |
|
|
BitstreamPutBit(bs, 0); // fixed_vop_rate = 0 |
|
|
#endif |
|
1167 |
|
|
1168 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1169 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
1173 |
|
|
1174 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
1175 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
1176 |
BitstreamPutBit(bs, 0); // sprite_enable |
|
1177 |
BitstreamPutBit(bs, 0); // not_in_bit |
if (vol_ver_id != 1) |
1178 |
|
{ if (frame->global_flags & XVID_GMC) |
1179 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
1180 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
1181 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
1182 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
1183 |
|
|
1184 |
|
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
1185 |
|
for DivX5 compatability */ |
1186 |
|
|
1187 |
|
} else |
1188 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
1189 |
|
} |
1190 |
|
else |
1191 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
1192 |
|
|
1193 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
1194 |
|
|
1195 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
1196 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
1208 |
|
|
1209 |
} |
} |
1210 |
|
|
1211 |
|
if (vol_ver_id != 1) { |
1212 |
|
if (pParam->m_quarterpel) |
1213 |
|
BitstreamPutBit(bs, 1); // quarterpel |
1214 |
|
else |
1215 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
1216 |
|
} |
1217 |
|
|
1218 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
1219 |
BitstreamPutBit(bs, 1); // resync_marker_disable |
BitstreamPutBit(bs, 1); // resync_marker_disable |
1220 |
BitstreamPutBit(bs, 0); // data_partitioned |
BitstreamPutBit(bs, 0); // data_partitioned |
1221 |
|
|
1222 |
|
if (vol_ver_id != 1) |
1223 |
|
{ |
1224 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
1225 |
|
BitstreamPutBit(bs, 0); // reduced_resolution_vop_enabled |
1226 |
|
} |
1227 |
|
|
1228 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1229 |
|
|
1230 |
} |
} |
1231 |
|
|
1232 |
|
|
1233 |
/* |
/* |
1234 |
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) |
|
1235 |
*/ |
*/ |
1236 |
void |
void |
1237 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader(Bitstream * const bs, |
1238 |
const MBParam * pParam, |
const MBParam * pParam, |
1239 |
const FRAMEINFO * frame, |
const FRAMEINFO * const frame, |
1240 |
int vop_coded) |
int vop_coded) |
1241 |
{ |
{ |
|
#ifdef BFRAMES |
|
1242 |
uint32_t i; |
uint32_t i; |
1243 |
#endif |
|
1244 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1245 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1246 |
|
|
1247 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1248 |
|
DPRINTF(DPRINTF_HEADER, "coding_type = %i", frame->coding_type); |
1249 |
|
|
|
// time_base = 0 write n x PutBit(1), PutBit(0) |
|
|
#ifdef BFRAMES |
|
1250 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
1251 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
1252 |
} |
} |
1253 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
|
#else |
|
|
BitstreamPutBits(bs, 0, 1); |
|
|
#endif |
|
1254 |
|
|
1255 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1256 |
|
|
1257 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
1258 |
#ifdef BFRAMES |
|
1259 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
1260 |
/*DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c", frame->seconds, frame->ticks, |
1261 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
1262 |
P_VOP ? 'P' : 'B');*/ |
P_VOP ? 'P' : 'B');*/ |
|
#else |
|
|
BitstreamPutBits(bs, 1, 1); |
|
|
#endif |
|
1263 |
|
|
1264 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1265 |
|
|
1270 |
|
|
1271 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
1272 |
|
|
1273 |
if (frame->coding_type == P_VOP) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
1274 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
1275 |
|
|
1276 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
1277 |
|
|
1278 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
1279 |
BitstreamPutBit(bs, 1); // top field first |
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
1280 |
BitstreamPutBit(bs, 0); // alternate vertical scan |
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
1281 |
|
} |
1282 |
|
|
1283 |
|
if (frame->coding_type == S_VOP) { |
1284 |
|
if (1) { // no_of_sprite_warping_points>=1 |
1285 |
|
if (pParam->m_quarterpel) |
1286 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
1287 |
|
else |
1288 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
1289 |
|
WRITE_MARKER(); |
1290 |
|
|
1291 |
|
if (pParam->m_quarterpel) |
1292 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
1293 |
|
else |
1294 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
1295 |
|
WRITE_MARKER(); |
1296 |
|
|
1297 |
|
|
1298 |
|
if (pParam->m_quarterpel) |
1299 |
|
{ |
1300 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
1301 |
|
} |
1302 |
|
else |
1303 |
|
{ |
1304 |
|
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
1305 |
|
} |
1306 |
|
|
1307 |
} |
} |
1308 |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
1309 |
|
|
1310 |
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
1311 |
|
bs_put_spritetrajectory(bs, 0 ); |
1312 |
|
WRITE_MARKER(); |
1313 |
|
bs_put_spritetrajectory(bs, 0 ); |
1314 |
|
WRITE_MARKER(); |
1315 |
|
} |
1316 |
|
// no support for brightness_change! |
1317 |
|
} |
1318 |
|
|
1319 |
|
|
1320 |
|
DPRINTF(DPRINTF_HEADER, "quant = %i", frame->quant); |
1321 |
|
|
1322 |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
1323 |
|
|
1329 |
|
|
1330 |
} |
} |
1331 |
|
|
|
|
|
1332 |
void |
void |
1333 |
BitstreamWriteUserData(Bitstream * const bs, |
BitstreamWriteUserData(Bitstream * const bs, |
1334 |
uint8_t * data, |
uint8_t * data, |