41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
* 22.05.2002 bs_put_matrix fix |
* 28.10.2002 GMC support - gruel * |
45 |
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* 04.10.2002 qpel support - Isibaar * |
46 |
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* 11.07.2002 add VOP width & height return to dec when dec->width * |
47 |
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* or dec->height is 0 (for use in examples/ex1.c) * |
48 |
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* MinChen <chenm001@163.com> * |
49 |
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* 22.05.2002 bs_put_matrix fix * |
50 |
* 20.05.2002 added BitstreamWriteUserData * |
* 20.05.2002 added BitstreamWriteUserData * |
51 |
* 19.06.2002 Fix a little bug in use custom quant matrix * |
* 19.06.2002 Fix a little bug in use custom quant matrix * |
52 |
* 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 |
#include "bitstream.h" |
#include "bitstream.h" |
70 |
#include "zigzag.h" |
#include "zigzag.h" |
71 |
#include "../quant/quant_matrix.h" |
#include "../quant/quant_matrix.h" |
72 |
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#include "mbcoding.h" |
73 |
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74 |
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75 |
static uint32_t __inline |
static uint32_t __inline |
125 |
} |
} |
126 |
} |
} |
127 |
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128 |
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129 |
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130 |
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// for PVOP addbits == fcode - 1 |
131 |
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// for BVOP addbits == max(fcode,bcode) - 1 |
132 |
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// returns mbpos |
133 |
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int |
134 |
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read_video_packet_header(Bitstream *bs, const int addbits, int * quant) |
135 |
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{ |
136 |
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int nbits; |
137 |
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int mbnum; |
138 |
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int hec; |
139 |
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140 |
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nbits = NUMBITS_VP_RESYNC_MARKER + addbits; |
141 |
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142 |
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BitstreamSkip(bs, BitstreamNumBitsToByteAlign(bs)); |
143 |
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BitstreamSkip(bs, nbits); |
144 |
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145 |
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DPRINTF(DPRINTF_STARTCODE, "<video_packet_header>"); |
146 |
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147 |
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// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) { |
148 |
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// hec |
149 |
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// vop_width |
150 |
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// marker_bit |
151 |
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// vop_height |
152 |
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// marker_bit |
153 |
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154 |
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//} |
155 |
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156 |
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mbnum = BitstreamGetBits(bs, 9); |
157 |
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DPRINTF(DPRINTF_HEADER, "mbnum %i", mbnum); |
158 |
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159 |
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// if (dec->shape != VIDOBJLAY_SHAPE_BINARYONLY) |
160 |
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*quant = BitstreamGetBits(bs, 5); |
161 |
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DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
162 |
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163 |
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// if (dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) |
164 |
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hec = BitstreamGetBit(bs); |
165 |
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DPRINTF(DPRINTF_HEADER, "header_extension_code %i", hec); |
166 |
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// if (hec) |
167 |
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// .. decoder hec-header ... |
168 |
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169 |
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return mbnum; |
170 |
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} |
171 |
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172 |
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173 |
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174 |
/* |
/* |
175 |
decode headers |
decode headers |
176 |
returns coding_type, or -1 if error |
returns coding_type, or -1 if error |
177 |
*/ |
*/ |
178 |
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179 |
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#define VIDOBJ_START_CODE_MASK 0x0000001f |
180 |
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#define VIDOBJLAY_START_CODE_MASK 0x0000000f |
181 |
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182 |
int |
int |
183 |
BitstreamReadHeaders(Bitstream * bs, |
BitstreamReadHeaders(Bitstream * bs, |
184 |
DECODER * dec, |
DECODER * dec, |
200 |
start_code = BitstreamShowBits(bs, 32); |
start_code = BitstreamShowBits(bs, 32); |
201 |
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|
202 |
if (start_code == VISOBJSEQ_START_CODE) { |
if (start_code == VISOBJSEQ_START_CODE) { |
203 |
// DPRINTF("visual_object_sequence"); |
|
204 |
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int profile; |
205 |
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206 |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object_sequence>"); |
207 |
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208 |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
BitstreamSkip(bs, 32); // visual_object_sequence_start_code |
209 |
BitstreamSkip(bs, 8); // profile_and_level_indication |
profile = BitstreamGetBits(bs, 8); // profile_and_level_indication |
210 |
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211 |
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DPRINTF(DPRINTF_HEADER, "profile_and_level_indication %i", profile); |
212 |
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213 |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
} else if (start_code == VISOBJSEQ_STOP_CODE) { |
214 |
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215 |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
BitstreamSkip(bs, 32); // visual_object_sequence_stop_code |
216 |
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217 |
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DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
218 |
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219 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
220 |
//DPRINTF("visual_object"); |
|
221 |
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DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
222 |
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223 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
224 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
225 |
{ |
{ |
226 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
227 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
228 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
229 |
} else { |
} else { |
230 |
vol_ver_id = 1; |
vol_ver_id = 1; |
232 |
|
|
233 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
234 |
{ |
{ |
235 |
//DPRINTF("visual_object_type != video"); |
DPRINTF(DPRINTF_ERROR, "visual_object_type != video"); |
236 |
return -1; |
return -1; |
237 |
} |
} |
238 |
BitstreamSkip(bs, 4); |
BitstreamSkip(bs, 4); |
241 |
|
|
242 |
if (BitstreamGetBit(bs)) // video_signal_type |
if (BitstreamGetBit(bs)) // video_signal_type |
243 |
{ |
{ |
244 |
//DPRINTF("+ video_signal_type"); |
DPRINTF(DPRINTF_HEADER,"+ video_signal_type"); |
245 |
BitstreamSkip(bs, 3); // video_format |
BitstreamSkip(bs, 3); // video_format |
246 |
BitstreamSkip(bs, 1); // video_range |
BitstreamSkip(bs, 1); // video_range |
247 |
if (BitstreamGetBit(bs)) // color_description |
if (BitstreamGetBit(bs)) // color_description |
248 |
{ |
{ |
249 |
//DPRINTF("+ color_description"); |
DPRINTF(DPRINTF_HEADER,"+ color_description"); |
250 |
BitstreamSkip(bs, 8); // color_primaries |
BitstreamSkip(bs, 8); // color_primaries |
251 |
BitstreamSkip(bs, 8); // transfer_characteristics |
BitstreamSkip(bs, 8); // transfer_characteristics |
252 |
BitstreamSkip(bs, 8); // matrix_coefficients |
BitstreamSkip(bs, 8); // matrix_coefficients |
253 |
} |
} |
254 |
} |
} |
255 |
} else if ((start_code & ~0x1f) == VIDOBJ_START_CODE) { |
} else if ((start_code & ~VIDOBJ_START_CODE_MASK) == VIDOBJ_START_CODE) { |
256 |
|
|
257 |
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DPRINTF(DPRINTF_STARTCODE, "<video_object>"); |
258 |
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DPRINTF(DPRINTF_HEADER, "vo id %i", start_code & VIDOBJ_START_CODE_MASK); |
259 |
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|
260 |
BitstreamSkip(bs, 32); // video_object_start_code |
BitstreamSkip(bs, 32); // video_object_start_code |
261 |
} else if ((start_code & ~0xf) == VIDOBJLAY_START_CODE) { |
|
262 |
//DPRINTF("video_object_layer"); |
} else if ((start_code & ~VIDOBJLAY_START_CODE_MASK) == VIDOBJLAY_START_CODE) { |
263 |
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264 |
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DPRINTF(DPRINTF_STARTCODE, "<video_object_layer>"); |
265 |
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DPRINTF(DPRINTF_HEADER, "vol id %i", start_code & VIDOBJLAY_START_CODE_MASK); |
266 |
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|
267 |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
BitstreamSkip(bs, 32); // video_object_layer_start_code |
268 |
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|
269 |
BitstreamSkip(bs, 1); // random_accessible_vol |
BitstreamSkip(bs, 1); // random_accessible_vol |
271 |
// video_object_type_indication |
// video_object_type_indication |
272 |
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 |
273 |
{ |
{ |
274 |
//DPRINTF("video_object_type_indication %i not supported ", |
DPRINTF(DPRINTF_ERROR,"video_object_type_indication %i not supported ", |
275 |
// BitstreamShowBits(bs, 8)); |
BitstreamShowBits(bs, 8)); |
276 |
return -1; |
return -1; |
277 |
} |
} |
278 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
280 |
|
|
281 |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
if (BitstreamGetBit(bs)) // is_object_layer_identifier |
282 |
{ |
{ |
283 |
//DPRINTF("+ is_object_layer_identifier"); |
DPRINTF(DPRINTF_HEADER, "+ is_object_layer_identifier"); |
284 |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
vol_ver_id = BitstreamGetBits(bs, 4); // video_object_layer_verid |
285 |
|
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
286 |
BitstreamSkip(bs, 3); // video_object_layer_priority |
BitstreamSkip(bs, 3); // video_object_layer_priority |
287 |
} else { |
} else { |
288 |
vol_ver_id = 1; |
vol_ver_id = 1; |
289 |
} |
} |
|
//DPRINTF("vol_ver_id %i", vol_ver_id); |
|
290 |
|
|
291 |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
if (BitstreamGetBits(bs, 4) == VIDOBJLAY_AR_EXTPAR) // aspect_ratio_info |
292 |
{ |
{ |
293 |
//DPRINTF("+ aspect_ratio_info"); |
DPRINTF(DPRINTF_HEADER, "+ aspect_ratio_info"); |
294 |
BitstreamSkip(bs, 8); // par_width |
BitstreamSkip(bs, 8); // par_width |
295 |
BitstreamSkip(bs, 8); // par_height |
BitstreamSkip(bs, 8); // par_height |
296 |
} |
} |
297 |
|
|
298 |
if (BitstreamGetBit(bs)) // vol_control_parameters |
if (BitstreamGetBit(bs)) // vol_control_parameters |
299 |
{ |
{ |
300 |
//DPRINTF("+ vol_control_parameters"); |
DPRINTF(DPRINTF_HEADER, "+ vol_control_parameters"); |
301 |
BitstreamSkip(bs, 2); // chroma_format |
BitstreamSkip(bs, 2); // chroma_format |
302 |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
dec->low_delay = BitstreamGetBit(bs); // low_delay |
303 |
|
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
304 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
305 |
{ |
{ |
306 |
//DPRINTF("+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
307 |
BitstreamSkip(bs, 15); // first_half_bitrate |
BitstreamSkip(bs, 15); // first_half_bitrate |
308 |
READ_MARKER(); |
READ_MARKER(); |
309 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
BitstreamSkip(bs, 15); // latter_half_bitrate |
320 |
} |
} |
321 |
|
|
322 |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
dec->shape = BitstreamGetBits(bs, 2); // video_object_layer_shape |
323 |
//DPRINTF("shape %i", dec->shape); |
DPRINTF(DPRINTF_HEADER, "shape %i", dec->shape); |
324 |
|
|
325 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE && vol_ver_id != 1) { |
326 |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
BitstreamSkip(bs, 4); // video_object_layer_shape_extension |
330 |
|
|
331 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
332 |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
time_increment_resolution = BitstreamGetBits(bs, 16); // vop_time_increment_resolution |
333 |
time_increment_resolution--; |
|
334 |
//DPRINTF("time_increment_resolution = %i",time_increment_resolution); |
DPRINTF(DPRINTF_HEADER,"vop_time_increment_resolution %i", time_increment_resolution); |
335 |
|
|
336 |
|
// time_increment_resolution--; |
337 |
|
|
338 |
if (time_increment_resolution > 0) { |
if (time_increment_resolution > 0) { |
339 |
dec->time_inc_bits = log2bin(time_increment_resolution); |
dec->time_inc_bits = log2bin(time_increment_resolution-1); |
340 |
} else { |
} else { |
341 |
// dec->time_inc_bits = 0; |
// dec->time_inc_bits = 0; |
|
|
|
342 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
// for "old" xvid compatibility, set time_inc_bits = 1 |
343 |
dec->time_inc_bits = 1; |
dec->time_inc_bits = 1; |
344 |
} |
} |
347 |
|
|
348 |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
if (BitstreamGetBit(bs)) // fixed_vop_rate |
349 |
{ |
{ |
350 |
|
DPRINTF(DPRINTF_HEADER, "+ fixed_vop_rate"); |
351 |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
BitstreamSkip(bs, dec->time_inc_bits); // fixed_vop_time_increment |
352 |
} |
} |
353 |
|
|
358 |
|
|
359 |
READ_MARKER(); |
READ_MARKER(); |
360 |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
width = BitstreamGetBits(bs, 13); // video_object_layer_width |
|
//DPRINTF("width %i", width); |
|
361 |
READ_MARKER(); |
READ_MARKER(); |
362 |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
height = BitstreamGetBits(bs, 13); // video_object_layer_height |
|
//DPRINTF("height %i", height); |
|
363 |
READ_MARKER(); |
READ_MARKER(); |
364 |
|
|
365 |
|
DPRINTF(DPRINTF_HEADER, "width %i", width); |
366 |
|
DPRINTF(DPRINTF_HEADER, "height %i", height); |
367 |
|
|
368 |
|
// for auto set width & height |
369 |
|
if (dec->width == 0) |
370 |
|
dec->width = width; |
371 |
|
if (dec->height == 0) |
372 |
|
dec->height = height; |
373 |
|
|
374 |
if (width != dec->width || height != dec->height) { |
if (width != dec->width || height != dec->height) { |
375 |
//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); |
|
376 |
return -1; |
return -1; |
377 |
} |
} |
378 |
|
|
379 |
} |
} |
380 |
|
|
381 |
if ((dec->interlacing = BitstreamGetBit(bs))) { |
dec->interlacing = BitstreamGetBit(bs); |
382 |
//DPRINTF("vol: interlacing"); |
DPRINTF(DPRINTF_HEADER, "interlace", dec->interlacing); |
|
} |
|
383 |
|
|
384 |
if (!BitstreamGetBit(bs)) // obmc_disable |
if (!BitstreamGetBit(bs)) // obmc_disable |
385 |
{ |
{ |
386 |
//DPRINTF("IGNORED/TODO: !obmc_disable"); |
DPRINTF(DPRINTF_ERROR, "obmc_disabled==false not supported"); |
387 |
// TODO |
// TODO |
388 |
// fucking divx4.02 has this enabled |
// fucking divx4.02 has this enabled |
389 |
} |
} |
390 |
|
|
391 |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
if (BitstreamGetBits(bs, (vol_ver_id == 1 ? 1 : 2))) // sprite_enable |
392 |
{ |
{ |
393 |
//DPRINTF("sprite_enable; not supported"); |
DPRINTF(DPRINTF_ERROR, "spriate_enabled not supported"); |
394 |
return -1; |
return -1; |
395 |
} |
} |
396 |
|
|
401 |
|
|
402 |
if (BitstreamGetBit(bs)) // not_8_bit |
if (BitstreamGetBit(bs)) // not_8_bit |
403 |
{ |
{ |
404 |
//DPRINTF("+ not_8_bit [IGNORED/TODO]"); |
DPRINTF(DPRINTF_HEADER, "not_8_bit==true (ignored)"); |
405 |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
dec->quant_bits = BitstreamGetBits(bs, 4); // quant_precision |
406 |
BitstreamSkip(bs, 4); // bits_per_pixel |
BitstreamSkip(bs, 4); // bits_per_pixel |
407 |
} else { |
} else { |
415 |
} |
} |
416 |
|
|
417 |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
dec->quant_type = BitstreamGetBit(bs); // quant_type |
418 |
//DPRINTF("**** quant_type %i", dec->quant_type); |
DPRINTF(DPRINTF_HEADER, "quant_type %i", dec->quant_type); |
419 |
|
|
420 |
if (dec->quant_type) { |
if (dec->quant_type) { |
421 |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
if (BitstreamGetBit(bs)) // load_intra_quant_mat |
422 |
{ |
{ |
423 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
424 |
|
|
425 |
|
DPRINTF(DPRINTF_HEADER, "load_intra_quant_mat"); |
426 |
|
|
427 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
428 |
set_intra_matrix(matrix); |
set_intra_matrix(matrix); |
429 |
} else |
} else |
433 |
{ |
{ |
434 |
uint8_t matrix[64]; |
uint8_t matrix[64]; |
435 |
|
|
436 |
|
DPRINTF(DPRINTF_HEADER, "load_inter_quant_mat"); |
437 |
|
|
438 |
bs_get_matrix(bs, matrix); |
bs_get_matrix(bs, matrix); |
439 |
set_inter_matrix(matrix); |
set_inter_matrix(matrix); |
440 |
} else |
} else |
441 |
set_inter_matrix(get_default_inter_matrix()); |
set_inter_matrix(get_default_inter_matrix()); |
442 |
|
|
443 |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
if (dec->shape == VIDOBJLAY_SHAPE_GRAYSCALE) { |
444 |
// TODO |
DPRINTF(DPRINTF_ERROR, "greyscale matrix not supported"); |
|
//DPRINTF("TODO: grayscale matrix stuff"); |
|
445 |
return -1; |
return -1; |
446 |
} |
} |
447 |
|
|
449 |
|
|
450 |
|
|
451 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
452 |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sampe |
DEBUG("QUARTERPEL BITSTREAM"); |
453 |
if (dec->quarterpel) { |
dec->quarterpel = BitstreamGetBit(bs); // quarter_sample |
|
//DPRINTF("IGNORED/TODO: quarter_sample"); |
|
454 |
} |
} |
455 |
} else { |
else |
456 |
dec->quarterpel = 0; |
dec->quarterpel = 0; |
457 |
} |
|
458 |
|
|
459 |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
if (!BitstreamGetBit(bs)) // complexity_estimation_disable |
460 |
{ |
{ |
461 |
//DPRINTF("TODO: complexity_estimation header"); |
DPRINTF(DPRINTF_ERROR, "complexity_estimation not supported"); |
|
// TODO |
|
462 |
return -1; |
return -1; |
463 |
} |
} |
464 |
|
|
465 |
if (!BitstreamGetBit(bs)) // resync_marker_disable |
BitstreamSkip(bs, 1); // resync_marker_disable |
|
{ |
|
|
//DPRINTF("IGNORED/TODO: !resync_marker_disable"); |
|
|
// TODO |
|
|
} |
|
466 |
|
|
467 |
if (BitstreamGetBit(bs)) // data_partitioned |
if (BitstreamGetBit(bs)) // data_partitioned |
468 |
{ |
{ |
469 |
//DPRINTF("+ data_partitioned"); |
DPRINTF(DPRINTF_ERROR, "data_partitioned not supported"); |
470 |
BitstreamSkip(bs, 1); // reversible_vlc |
BitstreamSkip(bs, 1); // reversible_vlc |
471 |
} |
} |
472 |
|
|
473 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
474 |
if (BitstreamGetBit(bs)) // newpred_enable |
if (BitstreamGetBit(bs)) // newpred_enable |
475 |
{ |
{ |
476 |
//DPRINTF("+ newpred_enable"); |
DPRINTF(DPRINTF_HEADER, "+ newpred_enable"); |
477 |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
BitstreamSkip(bs, 2); // requested_upstream_message_type |
478 |
BitstreamSkip(bs, 1); // newpred_segment_type |
BitstreamSkip(bs, 1); // newpred_segment_type |
479 |
} |
} |
480 |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
if (BitstreamGetBit(bs)) // reduced_resolution_vop_enable |
481 |
{ |
{ |
482 |
//DPRINTF("TODO: reduced_resolution_vop_enable"); |
DPRINTF(DPRINTF_ERROR, "reduced_resolution_vop not supported"); |
|
// TODO |
|
483 |
return -1; |
return -1; |
484 |
} |
} |
485 |
} |
} |
486 |
|
|
487 |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
if ((dec->scalability = BitstreamGetBit(bs))) // scalability |
488 |
{ |
{ |
489 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
//DPRINTF("TODO: scalability"); |
|
490 |
return -1; |
return -1; |
491 |
} |
} |
492 |
} else // dec->shape == BINARY_ONLY |
} else // dec->shape == BINARY_ONLY |
494 |
if (vol_ver_id != 1) { |
if (vol_ver_id != 1) { |
495 |
if (BitstreamGetBit(bs)) // scalability |
if (BitstreamGetBit(bs)) // scalability |
496 |
{ |
{ |
497 |
// TODO |
DPRINTF(DPRINTF_ERROR, "scalability not supported"); |
|
//DPRINTF("TODO: scalability"); |
|
498 |
return -1; |
return -1; |
499 |
} |
} |
500 |
} |
} |
503 |
} |
} |
504 |
|
|
505 |
} else if (start_code == GRPOFVOP_START_CODE) { |
} else if (start_code == GRPOFVOP_START_CODE) { |
506 |
//DPRINTF("group_of_vop"); |
|
507 |
|
DPRINTF(DPRINTF_STARTCODE, "<group_of_vop>"); |
508 |
|
|
509 |
BitstreamSkip(bs, 32); |
BitstreamSkip(bs, 32); |
510 |
{ |
{ |
511 |
int hours, minutes, seconds; |
int hours, minutes, seconds; |
514 |
minutes = BitstreamGetBits(bs, 6); |
minutes = BitstreamGetBits(bs, 6); |
515 |
READ_MARKER(); |
READ_MARKER(); |
516 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
517 |
//DPRINTF("%ih %im %is", hours, minutes, seconds); |
|
518 |
|
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
519 |
} |
} |
520 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
521 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
522 |
|
|
523 |
} else if (start_code == VOP_START_CODE) { |
} else if (start_code == VOP_START_CODE) { |
524 |
//DPRINTF("vop_start_code"); |
|
525 |
|
DPRINTF(DPRINTF_STARTCODE, "<vop>"); |
526 |
|
|
527 |
BitstreamSkip(bs, 32); // vop_start_code |
BitstreamSkip(bs, 32); // vop_start_code |
528 |
|
|
529 |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
coding_type = BitstreamGetBits(bs, 2); // vop_coding_type |
530 |
//DPRINTF("coding_type %i", coding_type); |
DPRINTF(DPRINTF_HEADER, "coding_type %i", coding_type); |
531 |
|
|
532 |
// *************************** for decode B-frame time *********************** |
// *************************** for decode B-frame time *********************** |
533 |
while (BitstreamGetBit(bs) != 0) // time_base |
while (BitstreamGetBit(bs) != 0) // time_base |
539 |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
time_increment = (BitstreamGetBits(bs, dec->time_inc_bits)); // vop_time_increment |
540 |
} |
} |
541 |
|
|
542 |
/* |
DPRINTF(DPRINTF_HEADER, "time_base %i", time_incr); |
543 |
DPRINTF("%c %i:%i", |
DPRINTF(DPRINTF_HEADER, "time_increment %i", time_increment); |
544 |
|
|
545 |
|
DPRINTF(DPRINTF_TIMECODE, "%c %i:%i", |
546 |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
coding_type == I_VOP ? 'I' : coding_type == P_VOP ? 'P' : 'B', |
547 |
time_incr, time_increment); |
time_incr, time_increment); |
|
*/ |
|
548 |
|
|
549 |
if (coding_type != B_VOP) { |
if (coding_type != B_VOP) { |
550 |
dec->last_time_base = dec->time_base; |
dec->last_time_base = dec->time_base; |
551 |
dec->time_base += time_incr; |
dec->time_base += time_incr; |
552 |
dec->time = |
dec->time = time_increment; |
553 |
dec->time_base * time_increment_resolution + |
|
554 |
|
/* dec->time_base * time_increment_resolution + |
555 |
time_increment; |
time_increment; |
556 |
dec->time_pp = (uint32_t) (dec->time - dec->last_non_b_time); |
*/ dec->time_pp = (uint32_t) |
557 |
|
(time_increment_resolution + dec->time - dec->last_non_b_time)%time_increment_resolution; |
558 |
dec->last_non_b_time = dec->time; |
dec->last_non_b_time = dec->time; |
559 |
} else { |
} else { |
560 |
dec->time = |
dec->time = time_increment; |
561 |
|
/* |
562 |
(dec->last_time_base + |
(dec->last_time_base + |
563 |
time_incr) * time_increment_resolution + time_increment; |
time_incr) * time_increment_resolution + time_increment; |
564 |
dec->time_bp = (uint32_t) (dec->last_non_b_time - dec->time); |
*/ |
565 |
|
dec->time_bp = (uint32_t) |
566 |
|
(time_increment_resolution + dec->last_non_b_time - dec->time)%time_increment_resolution; |
567 |
} |
} |
|
//DPRINTF("time_increment %i",time_increment); |
|
568 |
|
|
569 |
READ_MARKER(); |
READ_MARKER(); |
570 |
|
|
571 |
if (!BitstreamGetBit(bs)) // vop_coded |
if (!BitstreamGetBit(bs)) // vop_coded |
572 |
{ |
{ |
573 |
//DPRINTF("**NOT CODED**"); |
DPRINTF(DPRINTF_HEADER, "vop_coded==false"); |
574 |
return N_VOP; |
return N_VOP; |
575 |
} |
} |
576 |
|
|
581 |
|
|
582 |
// fix a little bug by MinChen <chenm002@163.com> |
// fix a little bug by MinChen <chenm002@163.com> |
583 |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
if ((dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) && |
584 |
(coding_type == P_VOP)) { |
( (coding_type == P_VOP) || (coding_type == S_VOP) ) ) { |
585 |
*rounding = BitstreamGetBit(bs); // rounding_type |
*rounding = BitstreamGetBit(bs); // rounding_type |
586 |
//DPRINTF("rounding %i", *rounding); |
DPRINTF(DPRINTF_HEADER, "rounding %i", *rounding); |
587 |
} |
} |
588 |
|
|
589 |
/* if (reduced_resolution_enable) |
/* if (reduced_resolution_enable) |
604 |
vert_mc_ref = BitstreamGetBits(bs, 13); |
vert_mc_ref = BitstreamGetBits(bs, 13); |
605 |
READ_MARKER(); |
READ_MARKER(); |
606 |
|
|
607 |
//DPRINTF("vop_width/height %i x %i", width, height); |
DPRINTF(DPRINTF_HEADER, "width %i", width); |
608 |
//DPRINTF("ref %i x %i", horiz_mc_ref, vert_mc_ref); |
DPRINTF(DPRINTF_HEADER, "height %i", height); |
609 |
|
DPRINTF(DPRINTF_HEADER, "horiz_mc_ref %i", horiz_mc_ref); |
610 |
|
DPRINTF(DPRINTF_HEADER, "vert_mc_ref %i", vert_mc_ref); |
611 |
|
|
612 |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
BitstreamSkip(bs, 1); // change_conv_ratio_disable |
613 |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
if (BitstreamGetBit(bs)) // vop_constant_alpha |
622 |
*intra_dc_threshold = |
*intra_dc_threshold = |
623 |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
intra_dc_threshold_table[BitstreamGetBits(bs, 3)]; |
624 |
|
|
625 |
|
dec->top_field_first = 0; |
626 |
|
dec->alternate_vertical_scan = 0; |
627 |
|
|
628 |
if (dec->interlacing) { |
if (dec->interlacing) { |
629 |
if ((dec->top_field_first = BitstreamGetBit(bs))) { |
dec->top_field_first = BitstreamGetBit(bs); |
630 |
//DPRINTF("vop: top_field_first"); |
DPRINTF(DPRINTF_HEADER, "interlace top_field_first %i", dec->top_field_first); |
631 |
} |
dec->alternate_vertical_scan = BitstreamGetBit(bs); |
632 |
if ((dec->alternate_vertical_scan = BitstreamGetBit(bs))) { |
DPRINTF(DPRINTF_HEADER, "interlace alternate_vertical_scan %i", dec->alternate_vertical_scan); |
633 |
//DPRINTF("vop: alternate_vertical_scan"); |
|
|
} |
|
634 |
} |
} |
635 |
} |
} |
636 |
|
|
637 |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
if ((*quant = BitstreamGetBits(bs, dec->quant_bits)) < 1) // vop_quant |
638 |
*quant = 1; |
*quant = 1; |
639 |
|
|
640 |
//DPRINTF("quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
641 |
|
|
642 |
if (coding_type != I_VOP) { |
if (coding_type != I_VOP) { |
643 |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
*fcode_forward = BitstreamGetBits(bs, 3); // fcode_forward |
644 |
|
DPRINTF(DPRINTF_HEADER, "fcode_forward %i", *fcode_forward); |
645 |
} |
} |
646 |
|
|
647 |
if (coding_type == B_VOP) { |
if (coding_type == B_VOP) { |
648 |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
*fcode_backward = BitstreamGetBits(bs, 3); // fcode_backward |
649 |
|
DPRINTF(DPRINTF_HEADER, "fcode_backward %i", *fcode_backward); |
650 |
} |
} |
651 |
if (!dec->scalability) { |
if (!dec->scalability) { |
652 |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
if ((dec->shape != VIDOBJLAY_SHAPE_RECTANGULAR) && |
655 |
} |
} |
656 |
} |
} |
657 |
return coding_type; |
return coding_type; |
658 |
|
|
659 |
} else if (start_code == USERDATA_START_CODE) { |
} else if (start_code == USERDATA_START_CODE) { |
660 |
//DPRINTF("user_data"); |
|
661 |
|
DPRINTF(DPRINTF_STARTCODE, "<user_data>"); |
662 |
|
|
663 |
BitstreamSkip(bs, 32); // user_data_start_code |
BitstreamSkip(bs, 32); // user_data_start_code |
664 |
|
|
665 |
} else // start_code == ? |
} else // start_code == ? |
666 |
{ |
{ |
667 |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
if (BitstreamShowBits(bs, 24) == 0x000001) { |
668 |
//DPRINTF("*** WARNING: unknown start_code %x", |
DPRINTF(DPRINTF_STARTCODE, "<unknown: %x>", BitstreamShowBits(bs, 32)); |
|
// BitstreamShowBits(bs, 32)); |
|
669 |
} |
} |
670 |
BitstreamSkip(bs, 8); |
BitstreamSkip(bs, 8); |
671 |
} |
} |
704 |
void |
void |
705 |
BitstreamWriteVolHeader(Bitstream * const bs, |
BitstreamWriteVolHeader(Bitstream * const bs, |
706 |
const MBParam * pParam, |
const MBParam * pParam, |
707 |
const FRAMEINFO * frame) |
const FRAMEINFO * const frame) |
708 |
{ |
{ |
709 |
|
int vol_ver_id=1; |
710 |
|
|
711 |
|
if ( (pParam->m_quarterpel) || (frame->global_flags & XVID_GMC) ) |
712 |
|
vol_ver_id = 2; |
713 |
|
|
714 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
715 |
BitstreamPad(bs); |
BitstreamPad(bs); |
716 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VO_START_CODE, 27); |
722 |
|
|
723 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
724 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
725 |
|
|
726 |
|
if (vol_ver_id == 1) |
727 |
|
{ |
728 |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
BitstreamPutBit(bs, 0); // is_object_layer_identified (0=not given) |
729 |
|
} |
730 |
|
else |
731 |
|
{ |
732 |
|
BitstreamPutBit(bs, 1); // is_object_layer_identified |
733 |
|
BitstreamPutBits(bs, vol_ver_id, 4); // vol_ver_id == 2 |
734 |
|
BitstreamPutBits(bs, 4, 3); // vol_ver_priority (1==lowest, 7==highest) ?? |
735 |
|
} |
736 |
|
|
737 |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
BitstreamPutBits(bs, 1, 4); // aspect_ratio_info (1=1:1) |
738 |
|
|
|
#ifdef BFRAMES |
|
|
if (pParam->max_bframes > 0) { |
|
|
//DPRINTF("low_delay=1"); |
|
739 |
BitstreamPutBit(bs, 1); // vol_control_parameters |
BitstreamPutBit(bs, 1); // vol_control_parameters |
740 |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
BitstreamPutBits(bs, 1, 2); // chroma_format 1="4:2:0" |
741 |
|
|
742 |
|
if (pParam->max_bframes > 0) { |
743 |
BitstreamPutBit(bs, 0); // low_delay |
BitstreamPutBit(bs, 0); // low_delay |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
|
744 |
} else |
} else |
|
#endif |
|
745 |
{ |
{ |
746 |
BitstreamPutBits(bs, 0, 1); // vol_control_parameters (0=not given) |
BitstreamPutBit(bs, 1); // low_delay |
747 |
} |
} |
748 |
|
BitstreamPutBit(bs, 0); // vbv_parameters (0=not given) |
749 |
|
|
750 |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
BitstreamPutBits(bs, 0, 2); // video_object_layer_shape (0=rectangular) |
751 |
|
|
756 |
25fps res=25 inc=1 |
25fps res=25 inc=1 |
757 |
29.97fps res=30000 inc=1001 |
29.97fps res=30000 inc=1001 |
758 |
*/ |
*/ |
|
#ifdef BFRAMES |
|
759 |
BitstreamPutBits(bs, pParam->fbase, 16); |
BitstreamPutBits(bs, pParam->fbase, 16); |
|
#else |
|
|
BitstreamPutBits(bs, 2, 16); |
|
|
#endif |
|
760 |
|
|
761 |
WRITE_MARKER(); |
WRITE_MARKER(); |
762 |
|
|
763 |
// fixed_vop_rate |
BitstreamPutBit(bs, 1); // fixed_vop_rate = 1 |
764 |
BitstreamPutBit(bs, 0); |
BitstreamPutBits(bs, pParam->fincr, log2bin(pParam->fbase)); // fixed_vop_time_increment |
|
|
|
|
// fixed_time_increment: value=nth_of_sec, nbits = log2(resolution) |
|
|
// BitstreamPutBits(bs, 0, 15); |
|
765 |
|
|
766 |
WRITE_MARKER(); |
WRITE_MARKER(); |
767 |
BitstreamPutBits(bs, pParam->width, 13); // width |
BitstreamPutBits(bs, pParam->width, 13); // width |
771 |
|
|
772 |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
BitstreamPutBit(bs, frame->global_flags & XVID_INTERLACING); // interlace |
773 |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
BitstreamPutBit(bs, 1); // obmc_disable (overlapped block motion compensation) |
774 |
BitstreamPutBit(bs, 0); // sprite_enable |
|
775 |
BitstreamPutBit(bs, 0); // not_in_bit |
if (vol_ver_id != 1) |
776 |
|
{ if (frame->global_flags & XVID_GMC) |
777 |
|
{ BitstreamPutBits(bs, 2, 2); // sprite_enable=='GMC' |
778 |
|
BitstreamPutBits(bs, 2, 6); // no_of_sprite_warping_points |
779 |
|
BitstreamPutBits(bs, 3, 2); // sprite_warping_accuracy 0==1/2, 1=1/4, 2=1/8, 3=1/16 |
780 |
|
BitstreamPutBit(bs, 0); // sprite_brightness_change (not supported) |
781 |
|
|
782 |
|
/* currently we use no_of_sprite_warping_points==2, sprite_warping_accuracy==3 |
783 |
|
for DivX5 compatability */ |
784 |
|
|
785 |
|
} else |
786 |
|
BitstreamPutBits(bs, 0, 2); // sprite_enable==off |
787 |
|
} |
788 |
|
else |
789 |
|
BitstreamPutBit(bs, 0); // sprite_enable==off |
790 |
|
|
791 |
|
BitstreamPutBit(bs, 0); // not_8_bit |
792 |
|
|
793 |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
// quant_type 0=h.263 1=mpeg4(quantizer tables) |
794 |
BitstreamPutBit(bs, pParam->m_quant_type); |
BitstreamPutBit(bs, pParam->m_quant_type); |
806 |
|
|
807 |
} |
} |
808 |
|
|
809 |
|
if (vol_ver_id != 1) { |
810 |
|
if (pParam->m_quarterpel) |
811 |
|
BitstreamPutBit(bs, 1); // quarterpel |
812 |
|
else |
813 |
|
BitstreamPutBit(bs, 0); // no quarterpel |
814 |
|
} |
815 |
|
|
816 |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
BitstreamPutBit(bs, 1); // complexity_estimation_disable |
817 |
BitstreamPutBit(bs, 1); // resync_marker_disable |
BitstreamPutBit(bs, 1); // resync_marker_disable |
818 |
BitstreamPutBit(bs, 0); // data_partitioned |
BitstreamPutBit(bs, 0); // data_partitioned |
819 |
|
|
820 |
|
if (vol_ver_id != 1) |
821 |
|
{ |
822 |
|
BitstreamPutBit(bs, 0); // newpred_enable |
823 |
|
BitstreamPutBit(bs, 0); // reduced_resolution_vop_enabled |
824 |
|
} |
825 |
|
|
826 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
827 |
|
|
828 |
} |
} |
829 |
|
|
830 |
|
|
831 |
/* |
/* |
832 |
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) |
|
833 |
*/ |
*/ |
834 |
void |
void |
835 |
BitstreamWriteVopHeader(Bitstream * const bs, |
BitstreamWriteVopHeader(Bitstream * const bs, |
836 |
const MBParam * pParam, |
const MBParam * pParam, |
837 |
const FRAMEINFO * frame, |
const FRAMEINFO * const frame, |
838 |
int vop_coded) |
int vop_coded) |
839 |
{ |
{ |
|
#ifdef BFRAMES |
|
840 |
uint32_t i; |
uint32_t i; |
841 |
#endif |
|
842 |
BitstreamPad(bs); |
BitstreamPad(bs); |
843 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
844 |
|
|
845 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
846 |
|
|
|
// time_base = 0 write n x PutBit(1), PutBit(0) |
|
|
#ifdef BFRAMES |
|
847 |
for (i = 0; i < frame->seconds; i++) { |
for (i = 0; i < frame->seconds; i++) { |
848 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
849 |
} |
} |
850 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
|
#else |
|
|
BitstreamPutBits(bs, 0, 1); |
|
|
#endif |
|
851 |
|
|
852 |
WRITE_MARKER(); |
WRITE_MARKER(); |
853 |
|
|
854 |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
// time_increment: value=nth_of_sec, nbits = log2(resolution) |
855 |
#ifdef BFRAMES |
|
856 |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
BitstreamPutBits(bs, frame->ticks, log2bin(pParam->fbase)); |
857 |
DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
/*DPRINTF("[%i:%i] %c\n", frame->seconds, frame->ticks, |
858 |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
frame->coding_type == I_VOP ? 'I' : frame->coding_type == |
859 |
P_VOP ? 'P' : 'B'); |
P_VOP ? 'P' : 'B');*/ |
|
#else |
|
|
BitstreamPutBits(bs, 1, 1); |
|
|
#endif |
|
860 |
|
|
861 |
WRITE_MARKER(); |
WRITE_MARKER(); |
862 |
|
|
867 |
|
|
868 |
BitstreamPutBits(bs, 1, 1); // vop_coded |
BitstreamPutBits(bs, 1, 1); // vop_coded |
869 |
|
|
870 |
if (frame->coding_type == P_VOP) |
if ( (frame->coding_type == P_VOP) || (frame->coding_type == S_VOP) ) |
871 |
BitstreamPutBits(bs, frame->rounding_type, 1); |
BitstreamPutBits(bs, frame->rounding_type, 1); |
872 |
|
|
873 |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
BitstreamPutBits(bs, 0, 3); // intra_dc_vlc_threshold |
874 |
|
|
875 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
876 |
BitstreamPutBit(bs, 1); // top field first |
BitstreamPutBit(bs, (frame->global_flags & XVID_TOPFIELDFIRST)); |
877 |
BitstreamPutBit(bs, 0); // alternate vertical scan |
BitstreamPutBit(bs, (frame->global_flags & XVID_ALTERNATESCAN)); |
878 |
|
} |
879 |
|
|
880 |
|
if (frame->coding_type == S_VOP) { |
881 |
|
if (1) { // no_of_sprite_warping_points>=1 |
882 |
|
if (pParam->m_quarterpel) |
883 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
884 |
|
else |
885 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
886 |
|
WRITE_MARKER(); |
887 |
|
|
888 |
|
if (pParam->m_quarterpel) |
889 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
890 |
|
else |
891 |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
892 |
|
WRITE_MARKER(); |
893 |
|
} |
894 |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
895 |
|
|
896 |
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
897 |
|
bs_put_spritetrajectory(bs, 0 ); |
898 |
|
WRITE_MARKER(); |
899 |
|
bs_put_spritetrajectory(bs, 0 ); |
900 |
|
WRITE_MARKER(); |
901 |
|
} |
902 |
|
// no support for brightness_change! |
903 |
} |
} |
904 |
|
|
905 |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
BitstreamPutBits(bs, frame->quant, 5); // quantizer |
912 |
|
|
913 |
} |
} |
914 |
|
|
|
|
|
915 |
void |
void |
916 |
BitstreamWriteUserData(Bitstream * const bs, |
BitstreamWriteUserData(Bitstream * const bs, |
917 |
uint8_t * data, |
uint8_t * data, |