41 |
* * |
* * |
42 |
* Revision history: * |
* Revision history: * |
43 |
* * |
* * |
44 |
* 28.10.2002 GMC support - gruel * |
* 05.01.2003 GMC support - gruel * |
45 |
* 04.10.2002 qpel support - Isibaar * |
* 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) * |
173 |
|
|
174 |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
if (dec->shape != VIDOBJLAY_SHAPE_BINARY_ONLY) |
175 |
{ |
{ |
176 |
*quant = BitstreamGetBits(bs, 5); /* quant_scale */ |
*quant = BitstreamGetBits(bs, dec->quant_bits); /* quant_scale */ |
177 |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
DPRINTF(DPRINTF_HEADER, "quant %i", *quant); |
178 |
} |
} |
179 |
|
|
230 |
if (coding_type == B_VOP && fcode_backward) |
if (coding_type == B_VOP && fcode_backward) |
231 |
{ |
{ |
232 |
*fcode_backward = BitstreamGetBits(bs, 3); |
*fcode_backward = BitstreamGetBits(bs, 3); |
233 |
DPRINTF(DPRINTF_HEADER,"fcode_backward %i", fcode_backward); |
DPRINTF(DPRINTF_HEADER,"fcode_backward %i", *fcode_backward); |
234 |
} |
} |
235 |
} |
} |
236 |
|
|
326 |
{ |
{ |
327 |
ESTIMATION * e = &dec->estimation; |
ESTIMATION * e = &dec->estimation; |
328 |
|
|
329 |
if (e->method == 0) |
if (e->method == 0 || e->method == 1) |
330 |
{ |
{ |
331 |
if (coding_type == I_VOP) { |
if (coding_type == I_VOP) { |
332 |
if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
if (e->opaque) BitstreamSkip(bs, 8); /* dcecs_opaque */ |
432 |
uint32_t * fcode_forward, |
uint32_t * fcode_forward, |
433 |
uint32_t * fcode_backward, |
uint32_t * fcode_backward, |
434 |
uint32_t * intra_dc_threshold, |
uint32_t * intra_dc_threshold, |
435 |
VECTOR * gmc_mv) |
WARPPOINTS *gmc_warp) |
436 |
{ |
{ |
437 |
uint32_t vol_ver_id; |
uint32_t vol_ver_id; |
438 |
uint32_t coding_type; |
uint32_t coding_type; |
464 |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
DPRINTF(DPRINTF_STARTCODE, "</visual_object_sequence>"); |
465 |
|
|
466 |
} else if (start_code == VISOBJ_START_CODE) { |
} else if (start_code == VISOBJ_START_CODE) { |
467 |
|
int visobj_ver_id; |
468 |
|
|
469 |
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
DPRINTF(DPRINTF_STARTCODE, "<visual_object>"); |
470 |
|
|
471 |
BitstreamSkip(bs, 32); // visual_object_start_code |
BitstreamSkip(bs, 32); // visual_object_start_code |
472 |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
if (BitstreamGetBit(bs)) // is_visual_object_identified |
473 |
{ |
{ |
474 |
vol_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
visobj_ver_id = BitstreamGetBits(bs, 4); // visual_object_ver_id |
475 |
DPRINTF(DPRINTF_HEADER,"ver_id %i", vol_ver_id); |
DPRINTF(DPRINTF_HEADER,"visobj_ver_id %i", visobj_ver_id); |
476 |
BitstreamSkip(bs, 3); // visual_object_priority |
BitstreamSkip(bs, 3); // visual_object_priority |
477 |
} else { |
} else { |
478 |
vol_ver_id = 1; |
visobj_ver_id = 1; |
479 |
} |
} |
480 |
|
|
481 |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
if (BitstreamShowBits(bs, 4) != VISOBJ_TYPE_VIDEO) // visual_object_type |
558 |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
DPRINTF(DPRINTF_HEADER, "low_delay %i", dec->low_delay); |
559 |
if (BitstreamGetBit(bs)) // vbv_parameters |
if (BitstreamGetBit(bs)) // vbv_parameters |
560 |
{ |
{ |
561 |
|
unsigned int bitrate; |
562 |
|
unsigned int buffer_size; |
563 |
|
unsigned int occupancy; |
564 |
|
|
565 |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
DPRINTF(DPRINTF_HEADER,"+ vbv_parameters"); |
566 |
BitstreamSkip(bs, 15); // first_half_bitrate |
|
567 |
|
bitrate = BitstreamGetBits(bs,15) << 15; // first_half_bit_rate |
568 |
READ_MARKER(); |
READ_MARKER(); |
569 |
BitstreamSkip(bs, 15); // latter_half_bitrate |
bitrate |= BitstreamGetBits(bs,15); // latter_half_bit_rate |
570 |
READ_MARKER(); |
READ_MARKER(); |
571 |
BitstreamSkip(bs, 15); // first_half_vbv_buffer_size |
|
572 |
|
buffer_size = BitstreamGetBits(bs, 15) << 3; // first_half_vbv_buffer_size |
573 |
READ_MARKER(); |
READ_MARKER(); |
574 |
BitstreamSkip(bs, 3); // latter_half_vbv_buffer_size |
buffer_size |= BitstreamGetBits(bs, 3); // latter_half_vbv_buffer_size |
575 |
BitstreamSkip(bs, 11); // first_half_vbv_occupancy |
|
576 |
|
occupancy = BitstreamGetBits(bs, 11) << 15; // first_half_vbv_occupancy |
577 |
READ_MARKER(); |
READ_MARKER(); |
578 |
BitstreamSkip(bs, 15); // latter_half_vbv_occupancy |
occupancy |= BitstreamGetBits(bs, 15); // latter_half_vbv_occupancy |
579 |
READ_MARKER(); |
READ_MARKER(); |
580 |
|
|
581 |
|
DPRINTF(DPRINTF_HEADER,"bitrate %d (unit=400 bps)", bitrate); |
582 |
|
DPRINTF(DPRINTF_HEADER,"buffer_size %d (unit=16384 bits)", buffer_size); |
583 |
|
DPRINTF(DPRINTF_HEADER,"occupancy %d (unit=64 bits)", occupancy); |
584 |
} |
} |
585 |
}else{ |
}else{ |
586 |
dec->low_delay = dec->low_delay_default; |
dec->low_delay = dec->low_delay_default; |
838 |
READ_MARKER(); |
READ_MARKER(); |
839 |
seconds = BitstreamGetBits(bs, 6); |
seconds = BitstreamGetBits(bs, 6); |
840 |
|
|
841 |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours); |
DPRINTF(DPRINTF_HEADER, "time %ih%im%is", hours,minutes,seconds); |
842 |
} |
} |
843 |
BitstreamSkip(bs, 1); // closed_gov |
BitstreamSkip(bs, 1); // closed_gov |
844 |
BitstreamSkip(bs, 1); // broken_link |
BitstreamSkip(bs, 1); // broken_link |
1012 |
} |
} |
1013 |
READ_MARKER(); |
READ_MARKER(); |
1014 |
|
|
1015 |
gmc_mv[i].x = x; |
gmc_warp->duv[i].x = x; |
1016 |
gmc_mv[i].y = y; |
gmc_warp->duv[i].y = y; |
1017 |
|
|
1018 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", i, x, y); |
1019 |
} |
} |
1126 |
const MBParam * pParam, |
const MBParam * pParam, |
1127 |
const FRAMEINFO * const frame) |
const FRAMEINFO * const frame) |
1128 |
{ |
{ |
1129 |
|
static const unsigned int vo_id = 0; |
1130 |
|
static const unsigned int vol_id = 0; |
1131 |
int vol_ver_id=1; |
int vol_ver_id=1; |
1132 |
|
int profile = 0x03; /* simple profile/level 3 */ |
1133 |
|
|
1134 |
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
if ( pParam->m_quarterpel || (frame->global_flags & XVID_GMC) || |
1135 |
(pParam->global & XVID_GLOBAL_REDUCED)) |
(pParam->global & XVID_GLOBAL_REDUCED)) |
1136 |
vol_ver_id = 2; |
vol_ver_id = 2; |
1137 |
|
|
1138 |
|
if ((pParam->global & XVID_GLOBAL_REDUCED)) |
1139 |
|
profile = 0x93; /* advanced realtime simple profile/level 3 */ |
1140 |
|
|
1141 |
|
if (pParam->m_quarterpel || (frame->global_flags & XVID_GMC)) |
1142 |
|
profile = 0xf3; /* advanced simple profile/level 2 */ |
1143 |
|
|
1144 |
|
// visual_object_sequence_start_code |
1145 |
|
// BitstreamPad(bs); |
1146 |
|
/* no padding here, anymore. You have to make sure that you are |
1147 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1148 |
|
|
1149 |
|
BitstreamPutBits(bs, VISOBJSEQ_START_CODE, 32); |
1150 |
|
BitstreamPutBits(bs, profile, 8); |
1151 |
|
|
1152 |
|
// visual_object_start_code |
1153 |
|
BitstreamPad(bs); |
1154 |
|
BitstreamPutBits(bs, VISOBJ_START_CODE, 32); |
1155 |
|
BitstreamPutBits(bs, 0, 1); // is_visual_object_identifier |
1156 |
|
BitstreamPutBits(bs, VISOBJ_TYPE_VIDEO, 4); // visual_object_type |
1157 |
|
|
1158 |
// video object_start_code & vo_id |
// video object_start_code & vo_id |
1159 |
BitstreamPad(bs); |
BitstreamPad(bs); |
1160 |
BitstreamPutBits(bs, VO_START_CODE, 27); |
BitstreamPutBits(bs, VIDOBJ_START_CODE|(vo_id&0x5), 32); |
|
BitstreamPutBits(bs, 0, 5); |
|
1161 |
|
|
1162 |
// video_object_layer_start_code & vol_id |
// video_object_layer_start_code & vol_id |
1163 |
BitstreamPutBits(bs, VOL_START_CODE, 28); |
BitstreamPad(bs); |
1164 |
BitstreamPutBits(bs, 0, 4); |
BitstreamPutBits(bs, VIDOBJLAY_START_CODE|(vol_id&0x4), 32); |
1165 |
|
|
1166 |
BitstreamPutBit(bs, 0); // random_accessible_vol |
BitstreamPutBit(bs, 0); // random_accessible_vol |
1167 |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
BitstreamPutBits(bs, 0, 8); // video_object_type_indication |
1270 |
|
|
1271 |
BitstreamPutBit(bs, 0); // scalability |
BitstreamPutBit(bs, 0); // scalability |
1272 |
|
|
1273 |
|
/* fake divx5 id, to ensure compatibility with divx5 decoder */ |
1274 |
|
#define DIVX5_ID "DivX501b481p" |
1275 |
|
if (pParam->max_bframes > 0 && (pParam->global & XVID_GLOBAL_PACKED)) { |
1276 |
|
BitstreamWriteUserData(bs, DIVX5_ID, strlen(DIVX5_ID)); |
1277 |
|
} |
1278 |
|
|
1279 |
|
/* xvid id */ |
1280 |
|
#define XVID_ID "XviD" XVID_BS_VERSION |
1281 |
|
BitstreamWriteUserData(bs, XVID_ID, strlen(XVID_ID)); |
1282 |
} |
} |
1283 |
|
|
1284 |
|
|
1294 |
{ |
{ |
1295 |
uint32_t i; |
uint32_t i; |
1296 |
|
|
1297 |
BitstreamPad(bs); |
// BitstreamPad(bs); |
1298 |
|
/* no padding here, anymore. You have to make sure that you are |
1299 |
|
byte aligned, and that always 1-8 padding bits have been written */ |
1300 |
|
|
1301 |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
BitstreamPutBits(bs, VOP_START_CODE, 32); |
1302 |
|
|
1303 |
BitstreamPutBits(bs, frame->coding_type, 2); |
BitstreamPutBits(bs, frame->coding_type, 2); |
1340 |
} |
} |
1341 |
|
|
1342 |
if (frame->coding_type == S_VOP) { |
if (frame->coding_type == S_VOP) { |
1343 |
if (1) { // no_of_sprite_warping_points>=1 |
if (1) { // no_of_sprite_warping_points>=1 (we use 2!) |
1344 |
if (pParam->m_quarterpel) |
int k; |
1345 |
bs_put_spritetrajectory(bs, frame->GMC_MV.x/2 ); // du[0] |
for (k=0;k<2;k++) |
1346 |
else |
{ |
1347 |
bs_put_spritetrajectory(bs, frame->GMC_MV.x ); // du[0] |
bs_put_spritetrajectory(bs, frame->warp.duv[k].x ); // du[k] |
1348 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1349 |
|
|
1350 |
if (pParam->m_quarterpel) |
bs_put_spritetrajectory(bs, frame->warp.duv[k].y ); // dv[k] |
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y/2 ); // dv[0] |
|
|
else |
|
|
bs_put_spritetrajectory(bs, frame->GMC_MV.y ); // dv[0] |
|
1351 |
WRITE_MARKER(); |
WRITE_MARKER(); |
1352 |
|
|
|
|
|
1353 |
if (pParam->m_quarterpel) |
if (pParam->m_quarterpel) |
1354 |
{ |
{ |
1355 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", 0, frame->GMC_MV.x/2, frame->GMC_MV.y/2); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i) *QPEL*", k, frame->warp.duv[k].x/2, frame->warp.duv[k].y/2); |
1356 |
} |
} |
1357 |
else |
else |
1358 |
{ |
{ |
1359 |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", 0, frame->GMC_MV.x, frame->GMC_MV.y); |
DPRINTF(DPRINTF_HEADER,"sprite_warping_point[%i] xy=(%i,%i)", k, frame->warp.duv[k].x, frame->warp.duv[k].y); |
1360 |
} |
} |
|
|
|
1361 |
} |
} |
|
/* GMC is halfpel in bitstream, even though GMC_MV was pseudo-qpel (2*halfpel) */ |
|
|
|
|
|
if (2) { // no_of_sprite_warping_points>=2 (for DivX5 compat) |
|
|
bs_put_spritetrajectory(bs, 0 ); |
|
|
WRITE_MARKER(); |
|
|
bs_put_spritetrajectory(bs, 0 ); |
|
|
WRITE_MARKER(); |
|
1362 |
} |
} |
|
// no support for brightness_change! |
|
1363 |
} |
} |
1364 |
|
|
1365 |
|
|