32 |
* |
* |
33 |
* History: |
* History: |
34 |
* |
* |
35 |
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* 28.06.2002 added basic resync support to iframe/pframe_decode() |
36 |
* 22.06.2002 added primative N_VOP support |
* 22.06.2002 added primative N_VOP support |
37 |
* #define BFRAMES_DEC now enables Minchenm's bframe decoder |
* #define BFRAMES_DEC now enables Minchenm's bframe decoder |
38 |
* 08.05.2002 add low_delay support for B_VOP decode |
* 08.05.2002 add low_delay support for B_VOP decode |
204 |
const uint32_t cbp, |
const uint32_t cbp, |
205 |
Bitstream * bs, |
Bitstream * bs, |
206 |
const uint32_t quant, |
const uint32_t quant, |
207 |
const uint32_t intra_dc_threshold) |
const uint32_t intra_dc_threshold, |
208 |
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const unsigned int bound_x, |
209 |
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const unsigned int bound_y) |
210 |
{ |
{ |
211 |
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212 |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
232 |
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233 |
start_timer(); |
start_timer(); |
234 |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
predict_acdc(dec->mbs, x_pos, y_pos, dec->mb_width, i, &block[i * 64], |
235 |
iQuant, iDcScaler, predictors); |
iQuant, iDcScaler, predictors, bound_x, bound_y); |
236 |
if (!acpred_flag) { |
if (!acpred_flag) { |
237 |
pMB->acpred_directions[i] = 0; |
pMB->acpred_directions[i] = 0; |
238 |
} |
} |
425 |
int quant, |
int quant, |
426 |
int intra_dc_threshold) |
int intra_dc_threshold) |
427 |
{ |
{ |
428 |
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uint32_t bound_x, bound_y; |
429 |
uint32_t x, y; |
uint32_t x, y; |
430 |
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431 |
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bound_x = bound_y = 0; |
432 |
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433 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
434 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
435 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb; |
436 |
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|
437 |
uint32_t mcbpc; |
uint32_t mcbpc; |
438 |
uint32_t cbpc; |
uint32_t cbpc; |
440 |
uint32_t cbpy; |
uint32_t cbpy; |
441 |
uint32_t cbp; |
uint32_t cbp; |
442 |
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443 |
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skip_stuffing(bs); |
444 |
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if (check_resync_marker(bs, 0)) |
445 |
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{ |
446 |
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int mbnum = read_video_packet_header(bs, 0); |
447 |
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x = bound_x = mbnum % dec->mb_width; |
448 |
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y = bound_y = mbnum / dec->mb_width; |
449 |
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} |
450 |
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451 |
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mb = &dec->mbs[y * dec->mb_width + x]; |
452 |
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453 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
454 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
455 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
456 |
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457 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
458 |
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if (mb->mode == MODE_STUFFING) { |
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DEBUG("-- STUFFING ?"); |
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continue; |
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} |
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459 |
cbpy = get_cbpy(bs, 1); |
cbpy = get_cbpy(bs, 1); |
460 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
461 |
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|
475 |
} |
} |
476 |
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|
477 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
478 |
intra_dc_threshold); |
intra_dc_threshold, bound_x, bound_y); |
479 |
} |
} |
480 |
} |
} |
481 |
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|
489 |
int y, |
int y, |
490 |
int k, |
int k, |
491 |
VECTOR * mv, |
VECTOR * mv, |
492 |
int fcode) |
int fcode, |
493 |
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const int bound_x, |
494 |
|
const int bound_y) |
495 |
{ |
{ |
496 |
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|
497 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
506 |
int pmv_x, pmv_y; |
int pmv_x, pmv_y; |
507 |
|
|
508 |
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|
509 |
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad); |
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad, bound_x, bound_y); |
510 |
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|
511 |
pmv_x = pmv[0].x; |
pmv_x = pmv[0].x; |
512 |
pmv_y = pmv[0].y; |
pmv_y = pmv[0].y; |
545 |
{ |
{ |
546 |
|
|
547 |
uint32_t x, y; |
uint32_t x, y; |
548 |
|
uint32_t bound_x, bound_y; |
549 |
|
|
550 |
start_timer(); |
start_timer(); |
551 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
552 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height, dec->interlacing); |
553 |
stop_edges_timer(); |
stop_edges_timer(); |
554 |
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|
555 |
|
bound_x = bound_y = 0; |
556 |
|
|
557 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
558 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
559 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb; |
560 |
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|
561 |
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skip_stuffing(bs); |
562 |
|
if (check_resync_marker(bs, 0)) |
563 |
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{ |
564 |
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int mbnum = read_video_packet_header(bs, 0); |
565 |
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x = bound_x = mbnum % dec->mb_width; |
566 |
|
y = bound_y = mbnum / dec->mb_width; |
567 |
|
} |
568 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
569 |
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|
570 |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
//if (!(dec->mb_skip[y*dec->mb_width + x]=BitstreamGetBit(bs))) // not_coded |
571 |
if (!(BitstreamGetBit(bs))) // not_coded |
if (!(BitstreamGetBit(bs))) // not_coded |
588 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
589 |
} |
} |
590 |
|
|
|
if (mb->mode == MODE_STUFFING) { |
|
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DEBUG("-- STUFFING ?"); |
|
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continue; |
|
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} |
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|
591 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
592 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
593 |
|
|
621 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
622 |
if (dec->interlacing && mb->field_pred) { |
if (dec->interlacing && mb->field_pred) { |
623 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
624 |
fcode); |
fcode, bound_x, bound_y); |
625 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
626 |
fcode); |
fcode, bound_x, bound_y); |
627 |
} else { |
} else { |
628 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
629 |
fcode); |
fcode, bound_x, bound_y); |
630 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
631 |
mb->mvs[0].x; |
mb->mvs[0].x; |
632 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
634 |
} |
} |
635 |
} else if (mb->mode == |
} else if (mb->mode == |
636 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
637 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound_x, bound_y); |
638 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound_x, bound_y); |
639 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound_x, bound_y); |
640 |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode); |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound_x, bound_y); |
641 |
} else // MODE_INTRA, MODE_INTRA_Q |
} else // MODE_INTRA, MODE_INTRA_Q |
642 |
{ |
{ |
643 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
645 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
646 |
0; |
0; |
647 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
648 |
intra_dc_threshold); |
intra_dc_threshold, bound_x, bound_y); |
649 |
continue; |
continue; |
650 |
} |
} |
651 |
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|