32 |
* |
* |
33 |
* History: |
* History: |
34 |
* |
* |
35 |
|
* 15.07.2002 fix a bug in B-frame decode at DIRECT mode |
36 |
|
* MinChen <chenm001@163.com> |
37 |
|
* 10.07.2002 added BFRAMES_DEC_DEBUG support |
38 |
|
* Fix a little bug for low_delay flage |
39 |
|
* MinChen <chenm001@163.com> |
40 |
|
* 28.06.2002 added basic resync support to iframe/pframe_decode() |
41 |
|
* 22.06.2002 added primative N_VOP support |
42 |
|
* #define BFRAMES_DEC now enables Minchen's bframe decoder |
43 |
* 08.05.2002 add low_delay support for B_VOP decode |
* 08.05.2002 add low_delay support for B_VOP decode |
44 |
* MinChen <chenm001@163.com> |
* MinChen <chenm001@163.com> |
45 |
* 05.05.2002 fix some B-frame decode problem |
* 05.05.2002 fix some B-frame decode problem |
55 |
* 22.12.2001 lock based interpolation |
* 22.12.2001 lock based interpolation |
56 |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
57 |
* |
* |
58 |
* $Id: decoder.c,v 1.20 2002-06-14 13:21:13 Isibaar Exp $ |
* $Id: decoder.c,v 1.37.2.1 2002-09-26 01:54:54 h Exp $ |
59 |
* |
* |
60 |
*************************************************************************/ |
*************************************************************************/ |
61 |
|
|
62 |
#include <stdlib.h> |
#include <stdlib.h> |
63 |
#include <string.h> |
#include <string.h> |
64 |
|
|
65 |
|
#ifdef BFRAMES_DEC_DEBUG |
66 |
|
#define BFRAMES_DEC |
67 |
|
#endif |
68 |
|
|
69 |
#include "xvid.h" |
#include "xvid.h" |
70 |
#include "portab.h" |
#include "portab.h" |
71 |
|
|
213 |
const uint32_t cbp, |
const uint32_t cbp, |
214 |
Bitstream * bs, |
Bitstream * bs, |
215 |
const uint32_t quant, |
const uint32_t quant, |
216 |
const uint32_t intra_dc_threshold) |
const uint32_t intra_dc_threshold, |
217 |
|
const unsigned int bound) |
218 |
{ |
{ |
219 |
|
|
220 |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
240 |
|
|
241 |
start_timer(); |
start_timer(); |
242 |
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], |
243 |
iQuant, iDcScaler, predictors); |
iQuant, iDcScaler, predictors, bound); |
244 |
if (!acpred_flag) { |
if (!acpred_flag) { |
245 |
pMB->acpred_directions[i] = 0; |
pMB->acpred_directions[i] = 0; |
246 |
} |
} |
259 |
|
|
260 |
block[i * 64 + 0] = dc_dif; |
block[i * 64 + 0] = dc_dif; |
261 |
start_coeff = 1; |
start_coeff = 1; |
262 |
|
|
263 |
|
DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); |
264 |
} else { |
} else { |
265 |
start_coeff = 0; |
start_coeff = 0; |
266 |
} |
} |
268 |
start_timer(); |
start_timer(); |
269 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
270 |
{ |
{ |
271 |
get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], |
int direction = dec->alternate_vertical_scan ? |
272 |
start_coeff); |
2 : pMB->acpred_directions[i]; |
273 |
|
|
274 |
|
get_intra_block(bs, &block[i * 64], direction, start_coeff); |
275 |
} |
} |
276 |
stop_coding_timer(); |
stop_coding_timer(); |
277 |
|
|
350 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
351 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
352 |
|
|
353 |
|
if (dec->quarterpel) |
354 |
|
{ |
355 |
|
uv_dx = (uv_dx >> 1) | (uv_dx & 1); |
356 |
|
uv_dy = (uv_dy >> 1) | (uv_dy & 1); |
357 |
|
} |
358 |
|
|
359 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
360 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
361 |
} else { |
} else { |
362 |
int sum; |
int sum; |
|
|
|
363 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
364 |
uv_dx = |
|
365 |
(sum == |
if (dec->quarterpel) |
366 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
367 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
368 |
|
} |
369 |
|
|
370 |
|
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
371 |
|
|
372 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
373 |
uv_dy = |
|
374 |
(sum == |
if (dec->quarterpel) |
375 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
376 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
377 |
|
} |
378 |
|
|
379 |
|
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
380 |
} |
} |
381 |
|
|
382 |
start_timer(); |
start_timer(); |
383 |
|
if(dec->quarterpel) { |
384 |
|
DEBUG("QUARTERPEL"); |
385 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
386 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
387 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
388 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
389 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
390 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
391 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
392 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
393 |
|
} |
394 |
|
else { |
395 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
396 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
397 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
398 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
399 |
rounding); |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
400 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
401 |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
402 |
rounding); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
403 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
} |
404 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
|
|
rounding); |
|
405 |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
406 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
407 |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
409 |
stop_comp_timer(); |
stop_comp_timer(); |
410 |
|
|
411 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
412 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
413 |
|
|
414 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
415 |
{ |
{ |
416 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
417 |
|
|
418 |
start_timer(); |
start_timer(); |
419 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
420 |
stop_coding_timer(); |
stop_coding_timer(); |
421 |
|
|
422 |
start_timer(); |
start_timer(); |
461 |
int quant, |
int quant, |
462 |
int intra_dc_threshold) |
int intra_dc_threshold) |
463 |
{ |
{ |
464 |
|
uint32_t bound; |
465 |
uint32_t x, y; |
uint32_t x, y; |
466 |
|
|
467 |
|
bound = 0; |
468 |
|
|
469 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
470 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
471 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb; |
|
|
|
472 |
uint32_t mcbpc; |
uint32_t mcbpc; |
473 |
uint32_t cbpc; |
uint32_t cbpc; |
474 |
uint32_t acpred_flag; |
uint32_t acpred_flag; |
475 |
uint32_t cbpy; |
uint32_t cbpy; |
476 |
uint32_t cbp; |
uint32_t cbp; |
477 |
|
|
478 |
|
while (BitstreamShowBits(bs, 9) == 1) |
479 |
|
BitstreamSkip(bs, 9); |
480 |
|
|
481 |
|
if (check_resync_marker(bs, 0)) |
482 |
|
{ |
483 |
|
bound = read_video_packet_header(bs, 0, &quant); |
484 |
|
x = bound % dec->mb_width; |
485 |
|
y = bound / dec->mb_width; |
486 |
|
} |
487 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
488 |
|
|
489 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
490 |
|
|
491 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
492 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
493 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
494 |
|
|
495 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
496 |
|
|
|
if (mb->mode == MODE_STUFFING) { |
|
|
DEBUG("-- STUFFING ?"); |
|
|
continue; |
|
|
} |
|
|
|
|
497 |
cbpy = get_cbpy(bs, 1); |
cbpy = get_cbpy(bs, 1); |
498 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
499 |
|
|
506 |
} |
} |
507 |
} |
} |
508 |
mb->quant = quant; |
mb->quant = quant; |
509 |
|
mb->mvs[0].x = mb->mvs[0].y = |
510 |
|
mb->mvs[1].x = mb->mvs[1].y = |
511 |
|
mb->mvs[2].x = mb->mvs[2].y = |
512 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
513 |
|
|
514 |
if (dec->interlacing) { |
if (dec->interlacing) { |
515 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
517 |
} |
} |
518 |
|
|
519 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
520 |
intra_dc_threshold); |
intra_dc_threshold, bound); |
521 |
} |
} |
522 |
|
if(dec->out_frm) |
523 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,dec->mb_width); |
524 |
|
|
525 |
} |
} |
526 |
|
|
527 |
} |
} |
534 |
int y, |
int y, |
535 |
int k, |
int k, |
536 |
VECTOR * mv, |
VECTOR * mv, |
537 |
int fcode) |
int fcode, |
538 |
|
const int bound) |
539 |
{ |
{ |
540 |
|
|
541 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
543 |
int low = ((-32) * scale_fac); |
int low = ((-32) * scale_fac); |
544 |
int range = (64 * scale_fac); |
int range = (64 * scale_fac); |
545 |
|
|
546 |
VECTOR pmv[4]; |
VECTOR pmv; |
|
int32_t psad[4]; |
|
|
|
|
547 |
int mv_x, mv_y; |
int mv_x, mv_y; |
|
int pmv_x, pmv_y; |
|
|
|
|
548 |
|
|
549 |
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad); |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
|
|
|
|
pmv_x = pmv[0].x; |
|
|
pmv_y = pmv[0].y; |
|
550 |
|
|
551 |
mv_x = get_mv(bs, fcode); |
mv_x = get_mv(bs, fcode); |
552 |
mv_y = get_mv(bs, fcode); |
mv_y = get_mv(bs, fcode); |
553 |
|
|
554 |
mv_x += pmv_x; |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv_x, mv_y, pmv.x, pmv.y); |
555 |
mv_y += pmv_y; |
|
556 |
|
mv_x += pmv.x; |
557 |
|
mv_y += pmv.y; |
558 |
|
|
559 |
if (mv_x < low) { |
if (mv_x < low) { |
560 |
mv_x += range; |
mv_x += range; |
584 |
{ |
{ |
585 |
|
|
586 |
uint32_t x, y; |
uint32_t x, y; |
587 |
|
uint32_t bound; |
588 |
|
int cp_mb, st_mb; |
589 |
|
|
590 |
start_timer(); |
start_timer(); |
591 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
592 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
593 |
stop_edges_timer(); |
stop_edges_timer(); |
594 |
|
|
595 |
|
bound = 0; |
596 |
|
|
597 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
598 |
|
cp_mb = st_mb = 0; |
599 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
600 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb; |
601 |
|
|
602 |
|
// skip stuffing |
603 |
|
while (BitstreamShowBits(bs, 10) == 1) |
604 |
|
BitstreamSkip(bs, 10); |
605 |
|
|
606 |
|
if (check_resync_marker(bs, fcode - 1)) |
607 |
|
{ |
608 |
|
bound = read_video_packet_header(bs, fcode - 1, &quant); |
609 |
|
x = bound % dec->mb_width; |
610 |
|
y = bound / dec->mb_width; |
611 |
|
} |
612 |
|
mb = &dec->mbs[y * dec->mb_width + x]; |
613 |
|
|
614 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
615 |
|
|
616 |
//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 |
617 |
if (!(BitstreamGetBit(bs))) // not_coded |
if (!(BitstreamGetBit(bs))) // not_coded |
623 |
uint32_t cbp; |
uint32_t cbp; |
624 |
uint32_t intra; |
uint32_t intra; |
625 |
|
|
626 |
|
cp_mb++; |
627 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
628 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
629 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
630 |
|
|
631 |
|
DPRINTF(DPRINTF_MB, "mode %i", mb->mode); |
632 |
|
DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); |
633 |
acpred_flag = 0; |
acpred_flag = 0; |
634 |
|
|
635 |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
638 |
acpred_flag = BitstreamGetBit(bs); |
acpred_flag = BitstreamGetBit(bs); |
639 |
} |
} |
640 |
|
|
|
if (mb->mode == MODE_STUFFING) { |
|
|
DEBUG("-- STUFFING ?"); |
|
|
continue; |
|
|
} |
|
|
|
|
641 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
642 |
|
DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); |
643 |
|
|
644 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
645 |
|
|
646 |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
647 |
quant += dquant_table[BitstreamGetBits(bs, 2)]; |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
648 |
|
DPRINTF(DPRINTF_MB, "dquant %i", dquant); |
649 |
|
quant += dquant; |
650 |
if (quant > 31) { |
if (quant > 31) { |
651 |
quant = 31; |
quant = 31; |
652 |
} else if (mb->quant < 1) { |
} else if (quant < 1) { |
653 |
quant = 1; |
quant = 1; |
654 |
} |
} |
655 |
|
DPRINTF(DPRINTF_MB, "quant %i", quant); |
656 |
} |
} |
657 |
mb->quant = quant; |
mb->quant = quant; |
658 |
|
|
659 |
if (dec->interlacing) { |
if (dec->interlacing) { |
660 |
|
if (cbp || intra) { |
661 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
662 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
663 |
|
} |
664 |
|
|
665 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
666 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
678 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
679 |
if (dec->interlacing && mb->field_pred) { |
if (dec->interlacing && mb->field_pred) { |
680 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
681 |
fcode); |
fcode, bound); |
682 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
683 |
fcode); |
fcode, bound); |
684 |
} else { |
} else { |
685 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
686 |
fcode); |
fcode, bound); |
687 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
688 |
mb->mvs[0].x; |
mb->mvs[0].x; |
689 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
690 |
mb->mvs[0].y; |
mb->mvs[0].y; |
691 |
} |
} |
692 |
} else if (mb->mode == |
} else if (mb->mode == MODE_INTER4V ) { |
693 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
|
694 |
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); |
695 |
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); |
696 |
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); |
697 |
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); |
698 |
} else // MODE_INTRA, MODE_INTRA_Q |
} else // MODE_INTRA, MODE_INTRA_Q |
699 |
{ |
{ |
700 |
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 = |
702 |
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 = |
703 |
0; |
0; |
704 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
705 |
intra_dc_threshold); |
intra_dc_threshold, bound); |
706 |
continue; |
continue; |
707 |
} |
} |
708 |
|
|
710 |
rounding); |
rounding); |
711 |
} else // not coded |
} else // not coded |
712 |
{ |
{ |
713 |
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
DEBUG2("P-frame MB at (X,Y)=",x,y); |
714 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
715 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
716 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
752 |
dec->refn[0].v + |
dec->refn[0].v + |
753 |
(8 * y) * dec->edged_width / 2 + (8 * x), |
(8 * y) * dec->edged_width / 2 + (8 * x), |
754 |
dec->edged_width / 2); |
dec->edged_width / 2); |
|
|
|
755 |
stop_transfer_timer(); |
stop_transfer_timer(); |
756 |
|
if(dec->out_frm && cp_mb > 0) { |
757 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
758 |
|
cp_mb = 0; |
759 |
} |
} |
760 |
|
st_mb = x+1; |
761 |
} |
} |
762 |
} |
} |
763 |
|
if(dec->out_frm && cp_mb > 0) |
764 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
765 |
|
} |
766 |
} |
} |
767 |
|
|
768 |
|
|
839 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
840 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
841 |
|
|
842 |
|
|
843 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
844 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
845 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
880 |
stop_comp_timer(); |
stop_comp_timer(); |
881 |
|
|
882 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
883 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
884 |
|
|
885 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
886 |
{ |
{ |
887 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
888 |
|
|
889 |
start_timer(); |
start_timer(); |
890 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
891 |
stop_coding_timer(); |
stop_coding_timer(); |
892 |
|
|
893 |
start_timer(); |
start_timer(); |
935 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
936 |
const uint32_t x_pos, |
const uint32_t x_pos, |
937 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
938 |
Bitstream * bs) |
Bitstream * bs) |
939 |
{ |
{ |
940 |
|
|
949 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
950 |
uint32_t i; |
uint32_t i; |
951 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
952 |
|
const uint32_t cbp = pMB->cbp; |
953 |
|
|
954 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
955 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
956 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
957 |
|
|
958 |
|
|
959 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
960 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
961 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1045 |
stride2); |
stride2); |
1046 |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
1047 |
stride2); |
stride2); |
|
|
|
1048 |
stop_comp_timer(); |
stop_comp_timer(); |
1049 |
|
|
1050 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1051 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1052 |
|
|
1053 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
1054 |
{ |
{ |
1055 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
1056 |
|
|
1057 |
start_timer(); |
start_timer(); |
1058 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
1059 |
stop_coding_timer(); |
stop_coding_timer(); |
1060 |
|
|
1061 |
start_timer(); |
start_timer(); |
1137 |
int fcode_forward, |
int fcode_forward, |
1138 |
int fcode_backward) |
int fcode_backward) |
1139 |
{ |
{ |
|
|
|
1140 |
uint32_t x, y; |
uint32_t x, y; |
1141 |
VECTOR mv, zeromv; |
VECTOR mv; |
1142 |
|
const VECTOR zeromv = {0,0}; |
1143 |
|
#ifdef BFRAMES_DEC_DEBUG |
1144 |
|
FILE *fp; |
1145 |
|
static char first=0; |
1146 |
|
#define BFRAME_DEBUG if (!first && fp){ \ |
1147 |
|
fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ |
1148 |
|
} |
1149 |
|
#endif |
1150 |
|
|
1151 |
start_timer(); |
start_timer(); |
1152 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1153 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
1154 |
//image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, dec->width, dec->height, dec->interlacing); |
image_setedges(&dec->refn[1], dec->edged_width, dec->edged_height, |
1155 |
|
dec->width, dec->height); |
1156 |
stop_edges_timer(); |
stop_edges_timer(); |
1157 |
|
|
1158 |
|
#ifdef BFRAMES_DEC_DEBUG |
1159 |
|
if (!first){ |
1160 |
|
fp=fopen("C:\\XVIDDBG.TXT","w"); |
1161 |
|
} |
1162 |
|
#endif |
1163 |
|
|
1164 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1165 |
// Initialize Pred Motion Vector |
// Initialize Pred Motion Vector |
1166 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1167 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1168 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1169 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1170 |
|
|
1171 |
mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = |
mv = |
1172 |
0; |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1173 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1174 |
|
|
1175 |
// the last P_VOP is skip macroblock ? |
// the last P_VOP is skip macroblock ? |
1176 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1177 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
|
mb->mb_type = MODE_FORWARD; |
|
1178 |
mb->cbp = 0; |
mb->cbp = 0; |
1179 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
#ifdef BFRAMES_DEC_DEBUG |
1180 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mb_type = MODE_NOT_CODED; |
1181 |
mb->quant = 8; |
BFRAME_DEBUG |
1182 |
|
#endif |
1183 |
|
mb->mb_type = MODE_FORWARD; |
1184 |
|
mb->quant = last_mb->quant; |
1185 |
|
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1186 |
|
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1187 |
|
|
1188 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, mb->quant, 1); |
1189 |
continue; |
continue; |
1190 |
} |
} |
|
//t=BitstreamShowBits(bs,32); |
|
1191 |
|
|
1192 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { // modb=='0' |
1193 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1204 |
|
|
1205 |
if (quant > 31) { |
if (quant > 31) { |
1206 |
quant = 31; |
quant = 31; |
1207 |
} else if (mb->quant < 1) { |
} else if (quant < 1) { |
1208 |
quant = 1; |
quant = 1; |
1209 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1210 |
} |
} |
|
mb->quant = quant; |
|
1211 |
} else { |
} else { |
1212 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1213 |
mb->cbp = 0; |
mb->cbp = 0; |
1214 |
} |
} |
1215 |
|
|
1216 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1217 |
|
mb->mode = MODE_INTER4V; |
1218 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
//DEBUG1("Switch bm_type=",mb->mb_type); |
1219 |
|
|
1220 |
|
#ifdef BFRAMES_DEC_DEBUG |
1221 |
|
BFRAME_DEBUG |
1222 |
|
#endif |
1223 |
|
|
1224 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1225 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1226 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1227 |
|
|
1228 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1229 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1230 |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
|
dec->time_pp; |
|
1231 |
int i; |
int i; |
1232 |
|
|
1233 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1234 |
mb->mvs[i].x = |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1235 |
(int32_t) ((TRB * last_mb->mvs[i].x) / TRD + |
/ TRD + mv.x); |
1236 |
mb->mvs[0].x); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1237 |
mb->b_mvs[i].x = |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1238 |
(int32_t) ((mb->mvs[0].x == |
/ TRD |
1239 |
0) ? ((TRB - |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1240 |
TRD) * last_mb->mvs[i].x) / |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1241 |
TRD : mb->mvs[i].x - last_mb->mvs[i].x); |
/ TRD + mv.y); |
1242 |
mb->mvs[i].y = |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1243 |
(int32_t) ((TRB * last_mb->mvs[i].y) / TRD + |
? ((TRB - TRD) * last_mb->mvs[i].y) |
1244 |
mb->mvs[0].y); |
/ TRD |
1245 |
mb->b_mvs[i].y = |
: mb->mvs[i].y - last_mb->mvs[i].y); |
|
(int32_t) ((mb->mvs[0].y == |
|
|
0) ? ((TRB - |
|
|
TRD) * last_mb->mvs[i].y) / |
|
|
TRD : mb->mvs[i].y - last_mb->mvs[i].y); |
|
1246 |
} |
} |
1247 |
//DEBUG("B-frame Direct!\n"); |
//DEBUG("B-frame Direct!\n"); |
1248 |
} |
} |
|
mb->mode = MODE_INTER4V; |
|
1249 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1250 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1251 |
break; |
break; |
1252 |
|
|
1253 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1254 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1255 |
dec->p_fmv); |
dec->p_fmv); |
1256 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1257 |
|
|
1258 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1259 |
fcode_backward, dec->p_bmv); |
fcode_backward, dec->p_bmv); |
1260 |
dec->p_bmv.x = mb->b_mvs[1].x = mb->b_mvs[2].x = |
dec->p_bmv = mb->b_mvs[1] = mb->b_mvs[2] = |
1261 |
mb->b_mvs[3].x = mb->b_mvs[0].x; |
mb->b_mvs[3] = mb->b_mvs[0]; |
|
dec->p_bmv.y = mb->b_mvs[1].y = mb->b_mvs[2].y = |
|
|
mb->b_mvs[3].y = mb->b_mvs[0].y; |
|
1262 |
|
|
1263 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1264 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1265 |
//DEBUG("B-frame Bidir!\n"); |
//DEBUG("B-frame Bidir!\n"); |
1266 |
break; |
break; |
1267 |
|
|
1268 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1269 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_backward, |
1270 |
dec->p_bmv); |
dec->p_bmv); |
1271 |
dec->p_bmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_bmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_bmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1272 |
|
|
1273 |
|
mb->mode = MODE_INTER; |
1274 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1275 |
//DEBUG("B-frame Backward!\n"); |
//DEBUG("B-frame Backward!\n"); |
1276 |
break; |
break; |
1278 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1279 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], fcode_forward, |
1280 |
dec->p_fmv); |
dec->p_fmv); |
1281 |
dec->p_fmv.x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
dec->p_fmv = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
|
mb->mvs[0].x; |
|
|
dec->p_fmv.y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
|
|
mb->mvs[0].y; |
|
1282 |
|
|
1283 |
|
mb->mode = MODE_INTER; |
1284 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1285 |
//DEBUG("B-frame Forward!\n"); |
//DEBUG("B-frame Forward!\n"); |
1286 |
break; |
break; |
1291 |
|
|
1292 |
} // end of FOR |
} // end of FOR |
1293 |
} |
} |
1294 |
|
#ifdef BFRAMES_DEC_DEBUG |
1295 |
|
if (!first){ |
1296 |
|
first=1; |
1297 |
|
if (fp) |
1298 |
|
fclose(fp); |
1299 |
|
} |
1300 |
|
#endif |
1301 |
} |
} |
1302 |
|
|
1303 |
// swap two MACROBLOCK array |
// swap two MACROBLOCK array |
1326 |
|
|
1327 |
start_global_timer(); |
start_global_timer(); |
1328 |
|
|
1329 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1330 |
|
|
1331 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1332 |
|
|
1333 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1343 |
case P_VOP: |
case P_VOP: |
1344 |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
1345 |
intra_dc_threshold); |
intra_dc_threshold); |
1346 |
|
#ifdef BFRAMES_DEC |
1347 |
DEBUG1("P_VOP Time=", dec->time); |
DEBUG1("P_VOP Time=", dec->time); |
1348 |
|
#endif |
1349 |
break; |
break; |
1350 |
|
|
1351 |
case I_VOP: |
case I_VOP: |
1352 |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
1353 |
|
#ifdef BFRAMES_DEC |
1354 |
DEBUG1("I_VOP Time=", dec->time); |
DEBUG1("I_VOP Time=", dec->time); |
1355 |
|
#endif |
1356 |
break; |
break; |
1357 |
|
|
1358 |
case B_VOP: |
case B_VOP: |
1359 |
#ifdef BFRAMES |
#ifdef BFRAMES_DEC |
1360 |
if (dec->time_pp > dec->time_bp) { |
if (dec->time_pp > dec->time_bp) { |
1361 |
DEBUG1("B_VOP Time=", dec->time); |
DEBUG1("B_VOP Time=", dec->time); |
1362 |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1363 |
} else { |
} else { |
1364 |
DEBUG("broken B-frame!"); |
DEBUG("broken B-frame!"); |
1365 |
} |
} |
1366 |
|
#else |
1367 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1368 |
#endif |
#endif |
1369 |
break; |
break; |
1370 |
|
|
1371 |
case N_VOP: // vop not coded |
case N_VOP: // vop not coded |
1372 |
|
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
1373 |
|
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1374 |
break; |
break; |
1375 |
|
|
1376 |
default: |
default: |
1377 |
return XVID_ERR_FAIL; |
return XVID_ERR_FAIL; |
1378 |
} |
} |
1379 |
|
|
1380 |
|
#ifdef BFRAMES_DEC_DEBUG |
1381 |
|
if (frame->length != BitstreamPos(&bs) / 8){ |
1382 |
|
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
1383 |
|
} |
1384 |
|
#endif |
1385 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |
1386 |
|
|
1387 |
#ifdef BFRAMES |
|
1388 |
|
#ifdef BFRAMES_DEC |
1389 |
// test if no B_VOP |
// test if no B_VOP |
1390 |
if (dec->low_delay) { |
if (dec->low_delay || dec->frames == 0) { |
1391 |
#endif |
#endif |
1392 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1393 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1394 |
#ifdef BFRAMES |
|
1395 |
|
#ifdef BFRAMES_DEC |
1396 |
} else { |
} else { |
1397 |
if (dec->frames >= 1) { |
if (dec->frames >= 1) { |
1398 |
start_timer(); |
start_timer(); |
1413 |
if (vop_type == I_VOP || vop_type == P_VOP) { |
if (vop_type == I_VOP || vop_type == P_VOP) { |
1414 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1415 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1416 |
|
|
1417 |
// swap MACROBLOCK |
// swap MACROBLOCK |
1418 |
if (dec->low_delay && vop_type == P_VOP) |
// the Divx will not set the low_delay flage some times |
1419 |
|
// so follow code will wrong to not swap at that time |
1420 |
|
// this will broken bitstream! so I'm change it, |
1421 |
|
// But that is not the best way! can anyone tell me how |
1422 |
|
// to do another way? |
1423 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1424 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1425 |
|
if (vop_type == P_VOP) |
1426 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1427 |
} |
} |
1428 |
|
|