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() |
* 28.06.2002 added basic resync support to iframe/pframe_decode() |
41 |
* 22.06.2002 added primative N_VOP support |
* 22.06.2002 added primative N_VOP support |
42 |
* #define BFRAMES_DEC now enables Minchenm's bframe decoder |
* #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 |
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 |
|
|
136 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
137 |
} |
} |
138 |
|
|
139 |
|
if (image_create(&dec->refh, dec->edged_width, dec->edged_height)) { |
140 |
|
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
141 |
|
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
142 |
|
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
143 |
|
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
144 |
|
xvid_free(dec); |
145 |
|
return XVID_ERR_MEMORY; |
146 |
|
} |
147 |
|
|
148 |
dec->mbs = |
dec->mbs = |
149 |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
xvid_malloc(sizeof(MACROBLOCK) * dec->mb_width * dec->mb_height, |
150 |
CACHE_LINE); |
CACHE_LINE); |
153 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
154 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
155 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
156 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
157 |
xvid_free(dec); |
xvid_free(dec); |
158 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
159 |
} |
} |
171 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
172 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
173 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
174 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
175 |
xvid_free(dec); |
xvid_free(dec); |
176 |
return XVID_ERR_MEMORY; |
return XVID_ERR_MEMORY; |
177 |
} |
} |
197 |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[0], dec->edged_width, dec->edged_height); |
198 |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[1], dec->edged_width, dec->edged_height); |
199 |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
image_destroy(&dec->refn[2], dec->edged_width, dec->edged_height); |
200 |
|
image_destroy(&dec->refh, dec->edged_width, dec->edged_height); |
201 |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
image_destroy(&dec->cur, dec->edged_width, dec->edged_height); |
202 |
xvid_free(dec); |
xvid_free(dec); |
203 |
|
|
226 |
Bitstream * bs, |
Bitstream * bs, |
227 |
const uint32_t quant, |
const uint32_t quant, |
228 |
const uint32_t intra_dc_threshold, |
const uint32_t intra_dc_threshold, |
229 |
const unsigned int bound_x, |
const unsigned int bound) |
|
const unsigned int bound_y) |
|
230 |
{ |
{ |
231 |
|
|
232 |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(block, 6, 64, int16_t, CACHE_LINE); |
252 |
|
|
253 |
start_timer(); |
start_timer(); |
254 |
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], |
255 |
iQuant, iDcScaler, predictors, bound_x, bound_y); |
iQuant, iDcScaler, predictors, bound); |
256 |
if (!acpred_flag) { |
if (!acpred_flag) { |
257 |
pMB->acpred_directions[i] = 0; |
pMB->acpred_directions[i] = 0; |
258 |
} |
} |
271 |
|
|
272 |
block[i * 64 + 0] = dc_dif; |
block[i * 64 + 0] = dc_dif; |
273 |
start_coeff = 1; |
start_coeff = 1; |
274 |
|
|
275 |
|
DPRINTF(DPRINTF_COEFF,"block[0] %i", dc_dif); |
276 |
} else { |
} else { |
277 |
start_coeff = 0; |
start_coeff = 0; |
278 |
} |
} |
280 |
start_timer(); |
start_timer(); |
281 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
282 |
{ |
{ |
283 |
get_intra_block(bs, &block[i * 64], pMB->acpred_directions[i], |
int direction = dec->alternate_vertical_scan ? |
284 |
start_coeff); |
2 : pMB->acpred_directions[i]; |
285 |
|
|
286 |
|
get_intra_block(bs, &block[i * 64], direction, start_coeff); |
287 |
} |
} |
288 |
stop_coding_timer(); |
stop_coding_timer(); |
289 |
|
|
362 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
363 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
364 |
|
|
365 |
|
if (dec->quarterpel) |
366 |
|
{ |
367 |
|
uv_dx = (uv_dx >> 1) | (uv_dx & 1); |
368 |
|
uv_dy = (uv_dy >> 1) | (uv_dy & 1); |
369 |
|
} |
370 |
|
|
371 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
372 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
373 |
|
|
374 |
|
start_timer(); |
375 |
|
if(dec->quarterpel) { |
376 |
|
interpolate16x16_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
377 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
378 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
379 |
|
} |
380 |
|
else { |
381 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
382 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
383 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
384 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
385 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
386 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
387 |
|
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
388 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
389 |
|
} |
390 |
|
|
391 |
|
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
392 |
|
uv_dx, uv_dy, stride2, rounding); |
393 |
|
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
394 |
|
uv_dx, uv_dy, stride2, rounding); |
395 |
|
stop_comp_timer(); |
396 |
|
|
397 |
} else { |
} else { |
398 |
int sum; |
int sum; |
|
|
|
399 |
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; |
400 |
uv_dx = |
|
401 |
(sum == |
if (dec->quarterpel) |
402 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
403 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
404 |
|
} |
405 |
|
|
406 |
|
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
407 |
|
|
408 |
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; |
409 |
uv_dy = |
|
410 |
(sum == |
if (dec->quarterpel) |
411 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
412 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
413 |
} |
} |
414 |
|
|
415 |
|
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
416 |
|
|
417 |
start_timer(); |
start_timer(); |
418 |
|
if(dec->quarterpel) { |
419 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
420 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos, |
421 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
422 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
423 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos, |
424 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
425 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
426 |
|
dec->refh.y + 128, 16*x_pos, 16*y_pos + 8, |
427 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
428 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, dec->refh.y, dec->refh.y + 64, |
429 |
|
dec->refh.y + 128, 16*x_pos + 8, 16*y_pos + 8, |
430 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
431 |
|
} |
432 |
|
else { |
433 |
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, |
434 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
435 |
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, |
436 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
437 |
rounding); |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
438 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
439 |
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, |
440 |
rounding); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
441 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
} |
442 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
|
|
rounding); |
|
443 |
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, |
444 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
445 |
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, |
446 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
447 |
stop_comp_timer(); |
stop_comp_timer(); |
448 |
|
} |
449 |
|
|
450 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
451 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
452 |
|
|
453 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
454 |
{ |
{ |
455 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
456 |
|
|
457 |
start_timer(); |
start_timer(); |
458 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
459 |
stop_coding_timer(); |
stop_coding_timer(); |
460 |
|
|
461 |
start_timer(); |
start_timer(); |
500 |
int quant, |
int quant, |
501 |
int intra_dc_threshold) |
int intra_dc_threshold) |
502 |
{ |
{ |
503 |
uint32_t bound_x, bound_y; |
uint32_t bound; |
504 |
uint32_t x, y; |
uint32_t x, y; |
505 |
|
|
506 |
bound_x = bound_y = 0; |
bound = 0; |
507 |
|
|
508 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
509 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
510 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
|
|
|
511 |
uint32_t mcbpc; |
uint32_t mcbpc; |
512 |
uint32_t cbpc; |
uint32_t cbpc; |
513 |
uint32_t acpred_flag; |
uint32_t acpred_flag; |
514 |
uint32_t cbpy; |
uint32_t cbpy; |
515 |
uint32_t cbp; |
uint32_t cbp; |
516 |
|
|
517 |
skip_stuffing(bs); |
while (BitstreamShowBits(bs, 9) == 1) |
518 |
|
BitstreamSkip(bs, 9); |
519 |
|
|
520 |
if (check_resync_marker(bs, 0)) |
if (check_resync_marker(bs, 0)) |
521 |
{ |
{ |
522 |
int mbnum = read_video_packet_header(bs, 0); |
bound = read_video_packet_header(bs, 0, &quant); |
523 |
x = bound_x = mbnum % dec->mb_width; |
x = bound % dec->mb_width; |
524 |
y = bound_y = mbnum / dec->mb_width; |
y = bound / dec->mb_width; |
525 |
} |
} |
|
|
|
526 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
527 |
|
|
528 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
529 |
|
|
530 |
mcbpc = get_mcbpc_intra(bs); |
mcbpc = get_mcbpc_intra(bs); |
531 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
532 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
545 |
} |
} |
546 |
} |
} |
547 |
mb->quant = quant; |
mb->quant = quant; |
548 |
|
mb->mvs[0].x = mb->mvs[0].y = |
549 |
|
mb->mvs[1].x = mb->mvs[1].y = |
550 |
|
mb->mvs[2].x = mb->mvs[2].y = |
551 |
|
mb->mvs[3].x = mb->mvs[3].y =0; |
552 |
|
|
553 |
if (dec->interlacing) { |
if (dec->interlacing) { |
554 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
556 |
} |
} |
557 |
|
|
558 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
559 |
intra_dc_threshold, bound_x, bound_y); |
intra_dc_threshold, bound); |
560 |
} |
} |
561 |
|
if(dec->out_frm) |
562 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,0,y,dec->mb_width); |
563 |
|
|
564 |
} |
} |
565 |
|
|
566 |
} |
} |
574 |
int k, |
int k, |
575 |
VECTOR * mv, |
VECTOR * mv, |
576 |
int fcode, |
int fcode, |
577 |
const int bound_x, |
const int bound) |
|
const int bound_y) |
|
578 |
{ |
{ |
579 |
|
|
580 |
int scale_fac = 1 << (fcode - 1); |
int scale_fac = 1 << (fcode - 1); |
582 |
int low = ((-32) * scale_fac); |
int low = ((-32) * scale_fac); |
583 |
int range = (64 * scale_fac); |
int range = (64 * scale_fac); |
584 |
|
|
585 |
VECTOR pmv[4]; |
VECTOR pmv; |
|
int32_t psad[4]; |
|
|
|
|
586 |
int mv_x, mv_y; |
int mv_x, mv_y; |
|
int pmv_x, pmv_y; |
|
|
|
|
587 |
|
|
588 |
get_pmvdata(dec->mbs, x, y, dec->mb_width, k, pmv, psad, bound_x, bound_y); |
pmv = get_pmv2(dec->mbs, dec->mb_width, bound, x, y, k); |
|
|
|
|
pmv_x = pmv[0].x; |
|
|
pmv_y = pmv[0].y; |
|
589 |
|
|
590 |
mv_x = get_mv(bs, fcode); |
mv_x = get_mv(bs, fcode); |
591 |
mv_y = get_mv(bs, fcode); |
mv_y = get_mv(bs, fcode); |
592 |
|
|
593 |
mv_x += pmv_x; |
DPRINTF(DPRINTF_MV,"mv_diff (%i,%i) pred (%i,%i)", mv_x, mv_y, pmv.x, pmv.y); |
594 |
mv_y += pmv_y; |
|
595 |
|
mv_x += pmv.x; |
596 |
|
mv_y += pmv.y; |
597 |
|
|
598 |
if (mv_x < low) { |
if (mv_x < low) { |
599 |
mv_x += range; |
mv_x += range; |
623 |
{ |
{ |
624 |
|
|
625 |
uint32_t x, y; |
uint32_t x, y; |
626 |
uint32_t bound_x, bound_y; |
uint32_t bound; |
627 |
|
int cp_mb, st_mb; |
628 |
|
|
629 |
start_timer(); |
start_timer(); |
630 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
631 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
632 |
stop_edges_timer(); |
stop_edges_timer(); |
633 |
|
|
634 |
bound_x = bound_y = 0; |
bound = 0; |
635 |
|
|
636 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
637 |
|
cp_mb = st_mb = 0; |
638 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
639 |
MACROBLOCK *mb; |
MACROBLOCK *mb; |
640 |
|
|
641 |
skip_stuffing(bs); |
// skip stuffing |
642 |
if (check_resync_marker(bs, 0)) |
while (BitstreamShowBits(bs, 10) == 1) |
643 |
{ |
BitstreamSkip(bs, 10); |
644 |
int mbnum = read_video_packet_header(bs, 0); |
|
645 |
x = bound_x = mbnum % dec->mb_width; |
if (check_resync_marker(bs, fcode - 1)) |
646 |
y = bound_y = mbnum / dec->mb_width; |
{ |
647 |
|
bound = read_video_packet_header(bs, fcode - 1, &quant); |
648 |
|
x = bound % dec->mb_width; |
649 |
|
y = bound / dec->mb_width; |
650 |
} |
} |
651 |
mb = &dec->mbs[y * dec->mb_width + x]; |
mb = &dec->mbs[y * dec->mb_width + x]; |
652 |
|
|
653 |
|
DPRINTF(DPRINTF_MB, "macroblock (%i,%i) %08x", x, y, BitstreamShowBits(bs, 32)); |
654 |
|
|
655 |
//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 |
656 |
if (!(BitstreamGetBit(bs))) // not_coded |
if (!(BitstreamGetBit(bs))) // not_coded |
657 |
{ |
{ |
662 |
uint32_t cbp; |
uint32_t cbp; |
663 |
uint32_t intra; |
uint32_t intra; |
664 |
|
|
665 |
|
cp_mb++; |
666 |
mcbpc = get_mcbpc_inter(bs); |
mcbpc = get_mcbpc_inter(bs); |
667 |
mb->mode = mcbpc & 7; |
mb->mode = mcbpc & 7; |
668 |
cbpc = (mcbpc >> 4); |
cbpc = (mcbpc >> 4); |
669 |
|
|
670 |
|
DPRINTF(DPRINTF_MB, "mode %i", mb->mode); |
671 |
|
DPRINTF(DPRINTF_MB, "cbpc %i", cbpc); |
672 |
acpred_flag = 0; |
acpred_flag = 0; |
673 |
|
|
674 |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
intra = (mb->mode == MODE_INTRA || mb->mode == MODE_INTRA_Q); |
678 |
} |
} |
679 |
|
|
680 |
cbpy = get_cbpy(bs, intra); |
cbpy = get_cbpy(bs, intra); |
681 |
|
DPRINTF(DPRINTF_MB, "cbpy %i", cbpy); |
682 |
|
|
683 |
cbp = (cbpy << 2) | cbpc; |
cbp = (cbpy << 2) | cbpc; |
684 |
|
|
685 |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
if (mb->mode == MODE_INTER_Q || mb->mode == MODE_INTRA_Q) { |
686 |
quant += dquant_table[BitstreamGetBits(bs, 2)]; |
int dquant = dquant_table[BitstreamGetBits(bs, 2)]; |
687 |
|
DPRINTF(DPRINTF_MB, "dquant %i", dquant); |
688 |
|
quant += dquant; |
689 |
if (quant > 31) { |
if (quant > 31) { |
690 |
quant = 31; |
quant = 31; |
691 |
} else if (mb->quant < 1) { |
} else if (quant < 1) { |
692 |
quant = 1; |
quant = 1; |
693 |
} |
} |
694 |
|
DPRINTF(DPRINTF_MB, "quant %i", quant); |
695 |
} |
} |
696 |
mb->quant = quant; |
mb->quant = quant; |
697 |
|
|
698 |
if (dec->interlacing) { |
if (dec->interlacing) { |
699 |
|
if (cbp || intra) { |
700 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
701 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
702 |
|
} |
703 |
|
|
704 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
705 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
717 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
718 |
if (dec->interlacing && mb->field_pred) { |
if (dec->interlacing && mb->field_pred) { |
719 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
720 |
fcode, bound_x, bound_y); |
fcode, bound); |
721 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], |
722 |
fcode, bound_x, bound_y); |
fcode, bound); |
723 |
} else { |
} else { |
724 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], |
725 |
fcode, bound_x, bound_y); |
fcode, bound); |
726 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = |
727 |
mb->mvs[0].x; |
mb->mvs[0].x; |
728 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
729 |
mb->mvs[0].y; |
mb->mvs[0].y; |
730 |
} |
} |
731 |
} else if (mb->mode == |
} else if (mb->mode == MODE_INTER4V ) { |
732 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
|
733 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound_x, bound_y); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
734 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound_x, bound_y); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
735 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound_x, bound_y); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
736 |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound_x, bound_y); |
get_motion_vector(dec, bs, x, y, 3, &mb->mvs[3], fcode, bound); |
737 |
} else // MODE_INTRA, MODE_INTRA_Q |
} else // MODE_INTRA, MODE_INTRA_Q |
738 |
{ |
{ |
739 |
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 = |
741 |
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 = |
742 |
0; |
0; |
743 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
744 |
intra_dc_threshold, bound_x, bound_y); |
intra_dc_threshold, bound); |
745 |
continue; |
continue; |
746 |
} |
} |
747 |
|
|
749 |
rounding); |
rounding); |
750 |
} else // not coded |
} else // not coded |
751 |
{ |
{ |
|
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
|
752 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
753 |
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; |
754 |
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; |
790 |
dec->refn[0].v + |
dec->refn[0].v + |
791 |
(8 * y) * dec->edged_width / 2 + (8 * x), |
(8 * y) * dec->edged_width / 2 + (8 * x), |
792 |
dec->edged_width / 2); |
dec->edged_width / 2); |
|
|
|
793 |
stop_transfer_timer(); |
stop_transfer_timer(); |
794 |
|
if(dec->out_frm && cp_mb > 0) { |
795 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
796 |
|
cp_mb = 0; |
797 |
|
} |
798 |
|
st_mb = x+1; |
799 |
} |
} |
800 |
} |
} |
801 |
|
if(dec->out_frm && cp_mb > 0) |
802 |
|
output_slice(&dec->cur, dec->edged_width,dec->width,dec->out_frm,st_mb,y,cp_mb); |
803 |
} |
} |
804 |
} |
} |
805 |
|
|
877 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
878 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
879 |
|
|
880 |
|
|
881 |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if (!(pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
882 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
883 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
918 |
stop_comp_timer(); |
stop_comp_timer(); |
919 |
|
|
920 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
921 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
922 |
|
|
923 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
924 |
{ |
{ |
925 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
926 |
|
|
927 |
start_timer(); |
start_timer(); |
928 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
929 |
stop_coding_timer(); |
stop_coding_timer(); |
930 |
|
|
931 |
start_timer(); |
start_timer(); |
963 |
stop_transfer_timer(); |
stop_transfer_timer(); |
964 |
} |
} |
965 |
|
|
|
|
|
966 |
// add by MinChen <chenm001@163.com> |
// add by MinChen <chenm001@163.com> |
967 |
// decode an B-frame direct & inter macroblock |
// decode an B-frame direct & inter macroblock |
968 |
void |
void |
972 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
973 |
const uint32_t x_pos, |
const uint32_t x_pos, |
974 |
const uint32_t y_pos, |
const uint32_t y_pos, |
|
const uint32_t cbp, |
|
975 |
Bitstream * bs) |
Bitstream * bs) |
976 |
{ |
{ |
977 |
|
|
986 |
int b_uv_dx, b_uv_dy; |
int b_uv_dx, b_uv_dy; |
987 |
uint32_t i; |
uint32_t i; |
988 |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
989 |
|
const uint32_t cbp = pMB->cbp; |
990 |
|
|
991 |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
992 |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
993 |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
994 |
|
|
995 |
|
|
996 |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
if ((pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q)) { |
997 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
998 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
1070 |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->refn[2].v, backward.v, 8 * x_pos, 8 * y_pos, |
1071 |
b_uv_dx, b_uv_dy, stride2, 0); |
b_uv_dx, b_uv_dy, stride2, 0); |
1072 |
|
|
1073 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1074 |
stride); |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos, |
1075 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, 16 * y_pos, |
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos, |
1076 |
stride); |
stride, 0); |
1077 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos, 16 * y_pos + 8, |
|
1078 |
stride); |
interpolate8x8_avg2(dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1079 |
interpolate8x8_c(dec->cur.y, dec->refn[2].y, 16 * x_pos + 8, |
dec->cur.y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1080 |
16 * y_pos + 8, stride); |
dec->refn[2].y + (16 * y_pos * stride) + 16 * x_pos + 8, |
1081 |
interpolate8x8_c(dec->cur.u, dec->refn[2].u, 8 * x_pos, 8 * y_pos, |
stride, 0); |
1082 |
stride2); |
|
1083 |
interpolate8x8_c(dec->cur.v, dec->refn[2].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1084 |
stride2); |
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1085 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos, |
1086 |
|
stride, 0); |
1087 |
|
|
1088 |
|
interpolate8x8_avg2(dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1089 |
|
dec->cur.y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1090 |
|
dec->refn[2].y + ((16 * y_pos + 8) * stride) + 16 * x_pos + 8, |
1091 |
|
stride, 0); |
1092 |
|
|
1093 |
|
interpolate8x8_avg2(dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1094 |
|
dec->cur.u + (8 * y_pos * stride2) + 8 * x_pos, |
1095 |
|
dec->refn[2].u + (8 * y_pos * stride2) + 8 * x_pos, |
1096 |
|
stride2, 0); |
1097 |
|
|
1098 |
|
interpolate8x8_avg2(dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1099 |
|
dec->cur.v + (8 * y_pos * stride2) + 8 * x_pos, |
1100 |
|
dec->refn[2].v + (8 * y_pos * stride2) + 8 * x_pos, |
1101 |
|
stride2, 0); |
1102 |
|
|
1103 |
stop_comp_timer(); |
stop_comp_timer(); |
1104 |
|
|
1105 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
1106 |
|
int direction = dec->alternate_vertical_scan ? 2 : 0; |
1107 |
|
|
1108 |
if (cbp & (1 << (5 - i))) // coded |
if (cbp & (1 << (5 - i))) // coded |
1109 |
{ |
{ |
1110 |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
memset(&block[i * 64], 0, 64 * sizeof(int16_t)); // clear |
1111 |
|
|
1112 |
start_timer(); |
start_timer(); |
1113 |
get_inter_block(bs, &block[i * 64]); |
get_inter_block(bs, &block[i * 64], direction); |
1114 |
stop_coding_timer(); |
stop_coding_timer(); |
1115 |
|
|
1116 |
start_timer(); |
start_timer(); |
1192 |
int fcode_forward, |
int fcode_forward, |
1193 |
int fcode_backward) |
int fcode_backward) |
1194 |
{ |
{ |
|
|
|
1195 |
uint32_t x, y; |
uint32_t x, y; |
1196 |
VECTOR mv, zeromv; |
VECTOR mv; |
1197 |
|
const VECTOR zeromv = {0,0}; |
1198 |
|
#ifdef BFRAMES_DEC_DEBUG |
1199 |
|
FILE *fp; |
1200 |
|
static char first=0; |
1201 |
|
#define BFRAME_DEBUG if (!first && fp){ \ |
1202 |
|
fprintf(fp,"Y=%3d X=%3d MB=%2d CBP=%02X\n",y,x,mb->mb_type,mb->cbp); \ |
1203 |
|
} |
1204 |
|
#endif |
1205 |
|
|
1206 |
start_timer(); |
start_timer(); |
1207 |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
image_setedges(&dec->refn[0], dec->edged_width, dec->edged_height, |
1208 |
dec->width, dec->height, dec->interlacing); |
dec->width, dec->height); |
1209 |
//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, |
1210 |
|
dec->width, dec->height); |
1211 |
stop_edges_timer(); |
stop_edges_timer(); |
1212 |
|
|
1213 |
|
#ifdef BFRAMES_DEC_DEBUG |
1214 |
|
if (!first){ |
1215 |
|
fp=fopen("C:\\XVIDDBG.TXT","w"); |
1216 |
|
} |
1217 |
|
#endif |
1218 |
|
|
1219 |
for (y = 0; y < dec->mb_height; y++) { |
for (y = 0; y < dec->mb_height; y++) { |
1220 |
// Initialize Pred Motion Vector |
// Initialize Pred Motion Vector |
1221 |
dec->p_fmv.x = dec->p_fmv.y = dec->p_bmv.x = dec->p_bmv.y = 0; |
dec->p_fmv = dec->p_bmv = zeromv; |
1222 |
for (x = 0; x < dec->mb_width; x++) { |
for (x = 0; x < dec->mb_width; x++) { |
1223 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1224 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1225 |
|
|
1226 |
mb->mvs[0].x = mb->mvs[0].y = zeromv.x = zeromv.y = mv.x = mv.y = |
mv = |
1227 |
0; |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1228 |
|
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1229 |
|
|
1230 |
// the last P_VOP is skip macroblock ? |
// the last P_VOP is skip macroblock ? |
1231 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1232 |
//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; |
|
1233 |
mb->cbp = 0; |
mb->cbp = 0; |
1234 |
mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
#ifdef BFRAMES_DEC_DEBUG |
1235 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
mb->mb_type = MODE_NOT_CODED; |
1236 |
mb->quant = 8; |
BFRAME_DEBUG |
1237 |
|
#endif |
1238 |
|
mb->mb_type = MODE_FORWARD; |
1239 |
|
mb->quant = last_mb->quant; |
1240 |
|
//mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = mb->mvs[0].x; |
1241 |
|
//mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = mb->mvs[0].y; |
1242 |
|
|
1243 |
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); |
1244 |
continue; |
continue; |
1245 |
} |
} |
|
//t=BitstreamShowBits(bs,32); |
|
1246 |
|
|
1247 |
if (!BitstreamGetBit(bs)) { // modb=='0' |
if (!BitstreamGetBit(bs)) { // modb=='0' |
1248 |
const uint8_t modb2 = BitstreamGetBit(bs); |
const uint8_t modb2 = BitstreamGetBit(bs); |
1259 |
|
|
1260 |
if (quant > 31) { |
if (quant > 31) { |
1261 |
quant = 31; |
quant = 31; |
1262 |
} else if (mb->quant < 1) { |
} else if (quant < 1) { |
1263 |
quant = 1; |
quant = 1; |
1264 |
} |
} |
|
} else { |
|
|
quant = 8; |
|
1265 |
} |
} |
|
mb->quant = quant; |
|
1266 |
} else { |
} else { |
1267 |
mb->mb_type = MODE_DIRECT_NONE_MV; |
mb->mb_type = MODE_DIRECT_NONE_MV; |
1268 |
mb->cbp = 0; |
mb->cbp = 0; |
1269 |
} |
} |
1270 |
|
|
1271 |
mb->mode = MODE_INTER; |
mb->quant = quant; |
1272 |
|
mb->mode = MODE_INTER4V; |
1273 |
//DEBUG1("Switch bm_type=",mb->mb_type); |
//DEBUG1("Switch bm_type=",mb->mb_type); |
1274 |
|
|
1275 |
|
#ifdef BFRAMES_DEC_DEBUG |
1276 |
|
BFRAME_DEBUG |
1277 |
|
#endif |
1278 |
|
|
1279 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1280 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1281 |
get_b_motion_vector(dec, bs, x, y, &mb->mvs[0], 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1282 |
|
|
1283 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1284 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1285 |
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; |
|
1286 |
int i; |
int i; |
1287 |
|
|
1288 |
for (i = 0; i < 4; i++) { |
for (i = 0; i < 4; i++) { |
1289 |
mb->mvs[i].x = |
mb->mvs[i].x = (int32_t) ((TRB * last_mb->mvs[i].x) |
1290 |
(int32_t) ((TRB * last_mb->mvs[i].x) / TRD + |
/ TRD + mv.x); |
1291 |
mb->mvs[0].x); |
mb->b_mvs[i].x = (int32_t) ((mv.x == 0) |
1292 |
mb->b_mvs[i].x = |
? ((TRB - TRD) * last_mb->mvs[i].x) |
1293 |
(int32_t) ((mb->mvs[0].x == |
/ TRD |
1294 |
0) ? ((TRB - |
: mb->mvs[i].x - last_mb->mvs[i].x); |
1295 |
TRD) * last_mb->mvs[i].x) / |
mb->mvs[i].y = (int32_t) ((TRB * last_mb->mvs[i].y) |
1296 |
TRD : mb->mvs[i].x - last_mb->mvs[i].x); |
/ TRD + mv.y); |
1297 |
mb->mvs[i].y = |
mb->b_mvs[i].y = (int32_t) ((mv.y == 0) |
1298 |
(int32_t) ((TRB * last_mb->mvs[i].y) / TRD + |
? ((TRB - TRD) * last_mb->mvs[i].y) |
1299 |
mb->mvs[0].y); |
/ TRD |
1300 |
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); |
|
1301 |
} |
} |
1302 |
//DEBUG("B-frame Direct!\n"); |
//DEBUG("B-frame Direct!\n"); |
1303 |
} |
} |
|
mb->mode = MODE_INTER4V; |
|
1304 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1305 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1306 |
break; |
break; |
1307 |
|
|
1308 |
case MODE_INTERPOLATE: |
case MODE_INTERPOLATE: |
1309 |
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, |
1310 |
dec->p_fmv); |
dec->p_fmv); |
1311 |
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; |
|
1312 |
|
|
1313 |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
get_b_motion_vector(dec, bs, x, y, &mb->b_mvs[0], |
1314 |
fcode_backward, dec->p_bmv); |
fcode_backward, dec->p_bmv); |
1315 |
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] = |
1316 |
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; |
|
1317 |
|
|
1318 |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
decoder_bf_interpolate_mbinter(dec, dec->refn[1], dec->refn[0], |
1319 |
mb, x, y, mb->cbp, bs); |
mb, x, y, bs); |
1320 |
//DEBUG("B-frame Bidir!\n"); |
//DEBUG("B-frame Bidir!\n"); |
1321 |
break; |
break; |
1322 |
|
|
1323 |
case MODE_BACKWARD: |
case MODE_BACKWARD: |
1324 |
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, |
1325 |
dec->p_bmv); |
dec->p_bmv); |
1326 |
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; |
|
1327 |
|
|
1328 |
|
mb->mode = MODE_INTER; |
1329 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 0); |
1330 |
//DEBUG("B-frame Backward!\n"); |
//DEBUG("B-frame Backward!\n"); |
1331 |
break; |
break; |
1333 |
case MODE_FORWARD: |
case MODE_FORWARD: |
1334 |
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, |
1335 |
dec->p_fmv); |
dec->p_fmv); |
1336 |
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; |
|
1337 |
|
|
1338 |
|
mb->mode = MODE_INTER; |
1339 |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
decoder_bf_mbinter(dec, mb, x, y, mb->cbp, bs, quant, 1); |
1340 |
//DEBUG("B-frame Forward!\n"); |
//DEBUG("B-frame Forward!\n"); |
1341 |
break; |
break; |
1346 |
|
|
1347 |
} // end of FOR |
} // end of FOR |
1348 |
} |
} |
1349 |
|
#ifdef BFRAMES_DEC_DEBUG |
1350 |
|
if (!first){ |
1351 |
|
first=1; |
1352 |
|
if (fp) |
1353 |
|
fclose(fp); |
1354 |
|
} |
1355 |
|
#endif |
1356 |
} |
} |
1357 |
|
|
1358 |
// swap two MACROBLOCK array |
// swap two MACROBLOCK array |
1381 |
|
|
1382 |
start_global_timer(); |
start_global_timer(); |
1383 |
|
|
1384 |
|
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1385 |
|
|
1386 |
BitstreamInit(&bs, frame->bitstream, frame->length); |
BitstreamInit(&bs, frame->bitstream, frame->length); |
1387 |
|
|
1388 |
|
if(BitstreamShowBits(&bs, 8) == 0x7f) |
1389 |
|
return XVID_ERR_OK; |
1390 |
|
|
1391 |
// add by chenm001 <chenm001@163.com> |
// add by chenm001 <chenm001@163.com> |
1392 |
// for support B-frame to reference last 2 frame |
// for support B-frame to reference last 2 frame |
1393 |
dec->frames++; |
dec->frames++; |
1401 |
case P_VOP: |
case P_VOP: |
1402 |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
decoder_pframe(dec, &bs, rounding, quant, fcode_forward, |
1403 |
intra_dc_threshold); |
intra_dc_threshold); |
1404 |
|
#ifdef BFRAMES_DEC |
1405 |
DEBUG1("P_VOP Time=", dec->time); |
DEBUG1("P_VOP Time=", dec->time); |
1406 |
|
#endif |
1407 |
break; |
break; |
1408 |
|
|
1409 |
case I_VOP: |
case I_VOP: |
1410 |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
decoder_iframe(dec, &bs, quant, intra_dc_threshold); |
1411 |
|
#ifdef BFRAMES_DEC |
1412 |
DEBUG1("I_VOP Time=", dec->time); |
DEBUG1("I_VOP Time=", dec->time); |
1413 |
|
#endif |
1414 |
break; |
break; |
1415 |
|
|
1416 |
case B_VOP: |
case B_VOP: |
1429 |
case N_VOP: // vop not coded |
case N_VOP: // vop not coded |
1430 |
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
// when low_delay==0, N_VOP's should interpolate between the past and future frames |
1431 |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
image_copy(&dec->cur, &dec->refn[0], dec->edged_width, dec->height); |
1432 |
|
#ifdef BFRAMES_DEC |
1433 |
|
DEBUG1("N_VOP Time=", dec->time); |
1434 |
|
#endif |
1435 |
break; |
break; |
1436 |
|
|
1437 |
default: |
default: |
1438 |
return XVID_ERR_FAIL; |
return XVID_ERR_FAIL; |
1439 |
} |
} |
1440 |
|
|
1441 |
|
#ifdef BFRAMES_DEC_DEBUG |
1442 |
|
if (frame->length != BitstreamPos(&bs) / 8){ |
1443 |
|
DEBUG2("InLen/UseLen",frame->length, BitstreamPos(&bs) / 8); |
1444 |
|
} |
1445 |
|
#endif |
1446 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |
1447 |
|
|
1448 |
|
|
1449 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1450 |
// test if no B_VOP |
// test if no B_VOP |
1451 |
if (dec->low_delay) { |
if (dec->low_delay || dec->frames == 0) { |
1452 |
#endif |
#endif |
1453 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1454 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1455 |
|
|
1456 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1457 |
} else { |
} else { |
1458 |
if (dec->frames >= 1) { |
if (dec->frames >= 1) { |
1474 |
if (vop_type == I_VOP || vop_type == P_VOP) { |
if (vop_type == I_VOP || vop_type == P_VOP) { |
1475 |
image_swap(&dec->refn[0], &dec->refn[1]); |
image_swap(&dec->refn[0], &dec->refn[1]); |
1476 |
image_swap(&dec->cur, &dec->refn[0]); |
image_swap(&dec->cur, &dec->refn[0]); |
1477 |
|
|
1478 |
// swap MACROBLOCK |
// swap MACROBLOCK |
1479 |
if (dec->low_delay && vop_type == P_VOP) |
// the Divx will not set the low_delay flage some times |
1480 |
|
// so follow code will wrong to not swap at that time |
1481 |
|
// this will broken bitstream! so I'm change it, |
1482 |
|
// But that is not the best way! can anyone tell me how |
1483 |
|
// to do another way? |
1484 |
|
// 18-07-2002 MinChen<chenm001@163.com> |
1485 |
|
//if (!dec->low_delay && vop_type == P_VOP) |
1486 |
|
if (vop_type == P_VOP) |
1487 |
mb_swap(&dec->mbs, &dec->last_mbs); |
mb_swap(&dec->mbs, &dec->last_mbs); |
1488 |
} |
} |
1489 |
|
|