20 |
* along with this program ; if not, write to the Free Software |
* along with this program ; if not, write to the Free Software |
21 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
22 |
* |
* |
23 |
* $Id: decoder.c,v 1.70 2005-05-17 21:03:32 Skal Exp $ |
* $Id: decoder.c,v 1.75 2005-11-22 10:23:01 suxen_drol Exp $ |
24 |
* |
* |
25 |
****************************************************************************/ |
****************************************************************************/ |
26 |
|
|
61 |
#include "image/postprocessing.h" |
#include "image/postprocessing.h" |
62 |
#include "utils/mem_align.h" |
#include "utils/mem_align.h" |
63 |
|
|
64 |
|
#define DIV2ROUND(n) (((n)>>1)|((n)&1)) |
65 |
|
#define DIV2(n) ((n)>>1) |
66 |
|
#define DIVUVMOV(n) (((n) >> 1) + roundtab_79[(n) & 0x3]) // |
67 |
|
|
68 |
static int |
static int |
69 |
decoder_resize(DECODER * dec) |
decoder_resize(DECODER * dec) |
70 |
{ |
{ |
316 |
stop_iquant_timer(); |
stop_iquant_timer(); |
317 |
|
|
318 |
start_timer(); |
start_timer(); |
319 |
idct(&data[i * 64]); |
idct((short * const)&data[i * 64]); |
320 |
stop_idct_timer(); |
stop_idct_timer(); |
321 |
|
|
322 |
} |
} |
348 |
DECLARE_ALIGNED_MATRIX(data, 1, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(data, 1, 64, int16_t, CACHE_LINE); |
349 |
|
|
350 |
int stride = dec->edged_width; |
int stride = dec->edged_width; |
|
int next_block = stride * 8; |
|
351 |
int i; |
int i; |
352 |
const uint32_t iQuant = pMB->quant; |
const uint32_t iQuant = pMB->quant; |
353 |
const int direction = dec->alternate_vertical_scan ? 2 : 0; |
const int direction = dec->alternate_vertical_scan ? 2 : 0; |
371 |
|
|
372 |
|
|
373 |
if (dec->interlacing && pMB->field_dct) { |
if (dec->interlacing && pMB->field_dct) { |
|
next_block = stride; |
|
|
stride *= 2; |
|
|
} |
|
|
|
|
374 |
dst[0] = pY_Cur; |
dst[0] = pY_Cur; |
375 |
dst[2] = pY_Cur + next_block; |
dst[1] = pY_Cur + 8; |
376 |
dst[1] = dst[0] + 8; |
dst[2] = pY_Cur + stride; |
377 |
|
dst[3] = dst[2] + 8; |
378 |
|
dst[4] = pU_Cur; |
379 |
|
dst[5] = pV_Cur; |
380 |
|
strides[0] = strides[1] = strides[2] = strides[3] = stride*2; |
381 |
|
strides[4] = stride/2; |
382 |
|
strides[5] = stride/2; |
383 |
|
} else { |
384 |
|
dst[0] = pY_Cur; |
385 |
|
dst[1] = pY_Cur + 8; |
386 |
|
dst[2] = pY_Cur + 8*stride; |
387 |
dst[3] = dst[2] + 8; |
dst[3] = dst[2] + 8; |
388 |
dst[4] = pU_Cur; |
dst[4] = pU_Cur; |
389 |
dst[5] = pV_Cur; |
dst[5] = pV_Cur; |
390 |
strides[0] = strides[1] = strides[2] = strides[3] = stride; |
strides[0] = strides[1] = strides[2] = strides[3] = stride; |
391 |
strides[4] = stride/2; |
strides[4] = stride/2; |
392 |
strides[5] = stride/2; |
strides[5] = stride/2; |
393 |
|
} |
394 |
|
|
395 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
396 |
/* Process only coded blocks */ |
/* Process only coded blocks */ |
406 |
|
|
407 |
/* iDCT */ |
/* iDCT */ |
408 |
start_timer(); |
start_timer(); |
409 |
idct(&data[0]); |
idct((short * const)&data[0]); |
410 |
stop_idct_timer(); |
stop_idct_timer(); |
411 |
|
|
412 |
/* Add this residual to the predicted block */ |
/* Add this residual to the predicted block */ |
453 |
CHECK_MV(mv[3]); |
CHECK_MV(mv[3]); |
454 |
} |
} |
455 |
|
|
456 |
|
/* Up to this version, chroma rounding was wrong with qpel. |
457 |
|
* So we try to be backward compatible to avoid artifacts */ |
458 |
|
#define BS_VERSION_BUGGY_CHROMA_ROUNDING 1 |
459 |
|
|
460 |
/* decode an inter macroblock */ |
/* decode an inter macroblock */ |
461 |
static void |
static void |
462 |
decoder_mbinter(DECODER * dec, |
decoder_mbinter(DECODER * dec, |
492 |
uv_dx = mv[0].x; |
uv_dx = mv[0].x; |
493 |
uv_dy = mv[0].y; |
uv_dy = mv[0].y; |
494 |
if (dec->quarterpel) { |
if (dec->quarterpel) { |
495 |
|
if (dec->bs_version <= BS_VERSION_BUGGY_CHROMA_ROUNDING) { |
496 |
|
uv_dx = (uv_dx>>1) | (uv_dx&1); |
497 |
|
uv_dy = (uv_dy>>1) | (uv_dy&1); |
498 |
|
} |
499 |
|
else { |
500 |
uv_dx /= 2; |
uv_dx /= 2; |
501 |
uv_dy /= 2; |
uv_dy /= 2; |
502 |
} |
} |
503 |
|
} |
504 |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
505 |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
506 |
|
|
515 |
} else { /* MODE_INTER4V */ |
} else { /* MODE_INTER4V */ |
516 |
|
|
517 |
if(dec->quarterpel) { |
if(dec->quarterpel) { |
518 |
|
if (dec->bs_version <= BS_VERSION_BUGGY_CHROMA_ROUNDING) { |
519 |
|
int z; |
520 |
|
uv_dx = 0; uv_dy = 0; |
521 |
|
for (z = 0; z < 4; z++) { |
522 |
|
uv_dx += ((mv[z].x>>1) | (mv[z].x&1)); |
523 |
|
uv_dy += ((mv[z].y>>1) | (mv[z].y&1)); |
524 |
|
} |
525 |
|
} |
526 |
|
else { |
527 |
uv_dx = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); |
uv_dx = (mv[0].x / 2) + (mv[1].x / 2) + (mv[2].x / 2) + (mv[3].x / 2); |
528 |
uv_dy = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); |
uv_dy = (mv[0].y / 2) + (mv[1].y / 2) + (mv[2].y / 2) + (mv[3].y / 2); |
529 |
|
} |
530 |
} else { |
} else { |
531 |
uv_dx = mv[0].x + mv[1].x + mv[2].x + mv[3].x; |
uv_dx = mv[0].x + mv[1].x + mv[2].x + mv[3].x; |
532 |
uv_dy = mv[0].y + mv[1].y + mv[2].y + mv[3].y; |
uv_dy = mv[0].y + mv[1].y + mv[2].y + mv[3].y; |
572 |
decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, pMB); |
decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, pMB); |
573 |
} |
} |
574 |
|
|
575 |
|
/* decode an inter macroblock in field mode */ |
576 |
|
static void |
577 |
|
decoder_mbinter_field(DECODER * dec, |
578 |
|
const MACROBLOCK * pMB, |
579 |
|
const uint32_t x_pos, |
580 |
|
const uint32_t y_pos, |
581 |
|
const uint32_t cbp, |
582 |
|
Bitstream * bs, |
583 |
|
const uint32_t rounding, |
584 |
|
const int ref) |
585 |
|
{ |
586 |
|
uint32_t stride = dec->edged_width; |
587 |
|
uint32_t stride2 = stride / 2; |
588 |
|
|
589 |
|
uint8_t *pY_Cur, *pU_Cur, *pV_Cur; |
590 |
|
|
591 |
|
int uvtop_dx, uvtop_dy; |
592 |
|
int uvbot_dx, uvbot_dy; |
593 |
|
VECTOR mv[4]; /* local copy of mvs */ |
594 |
|
|
595 |
|
/* Get pointer to memory areas */ |
596 |
|
pY_Cur = dec->cur.y + (y_pos << 4) * stride + (x_pos << 4); |
597 |
|
pU_Cur = dec->cur.u + (y_pos << 3) * stride2 + (x_pos << 3); |
598 |
|
pV_Cur = dec->cur.v + (y_pos << 3) * stride2 + (x_pos << 3); |
599 |
|
|
600 |
|
mv[0] = pMB->mvs[0]; |
601 |
|
mv[1] = pMB->mvs[1]; |
602 |
|
memset(&mv[2],0,2*sizeof(VECTOR)); |
603 |
|
|
604 |
|
validate_vector(mv, x_pos, y_pos, dec); |
605 |
|
|
606 |
|
start_timer(); |
607 |
|
|
608 |
|
if(pMB->mode!=MODE_INTER4V) /* INTER, INTER_Q, NOT_CODED, FORWARD, BACKWARD */ |
609 |
|
{ |
610 |
|
/* Prepare top field vector */ |
611 |
|
uvtop_dx = DIV2ROUND(mv[0].x); |
612 |
|
uvtop_dy = DIV2ROUND(mv[0].y); |
613 |
|
|
614 |
|
/* Prepare bottom field vector */ |
615 |
|
uvbot_dx = DIV2ROUND(mv[1].x); |
616 |
|
uvbot_dy = DIV2ROUND(mv[1].y); |
617 |
|
|
618 |
|
if(dec->quarterpel) |
619 |
|
{ |
620 |
|
/* NOT supported */ |
621 |
|
} |
622 |
|
else |
623 |
|
{ |
624 |
|
/* Interpolate top field left part(we use double stride for every 2nd line) */ |
625 |
|
interpolate8x8_switch(dec->cur.y,dec->refn[ref].y+pMB->field_for_top*stride, |
626 |
|
16*x_pos,8*y_pos,mv[0].x, mv[0].y>>1,2*stride, rounding); |
627 |
|
/* top field right part */ |
628 |
|
interpolate8x8_switch(dec->cur.y,dec->refn[ref].y+pMB->field_for_top*stride, |
629 |
|
16*x_pos+8,8*y_pos,mv[0].x, mv[0].y>>1,2*stride, rounding); |
630 |
|
|
631 |
|
/* Interpolate bottom field left part(we use double stride for every 2nd line) */ |
632 |
|
interpolate8x8_switch(dec->cur.y+stride,dec->refn[ref].y+pMB->field_for_bot*stride, |
633 |
|
16*x_pos,8*y_pos,mv[1].x, mv[1].y>>1,2*stride, rounding); |
634 |
|
/* Bottom field right part */ |
635 |
|
interpolate8x8_switch(dec->cur.y+stride,dec->refn[ref].y+pMB->field_for_bot*stride, |
636 |
|
16*x_pos+8,8*y_pos,mv[1].x, mv[1].y>>1,2*stride, rounding); |
637 |
|
|
638 |
|
/* Interpolate field1 U */ |
639 |
|
interpolate8x4_switch(dec->cur.u,dec->refn[ref].u+pMB->field_for_top*stride2, |
640 |
|
8*x_pos,4*y_pos,uvtop_dx,DIV2ROUND(uvtop_dy),stride,rounding); |
641 |
|
|
642 |
|
/* Interpolate field1 V */ |
643 |
|
interpolate8x4_switch(dec->cur.v,dec->refn[ref].v+pMB->field_for_top*stride2, |
644 |
|
8*x_pos,4*y_pos,uvtop_dx,DIV2ROUND(uvtop_dy),stride,rounding); |
645 |
|
|
646 |
|
/* Interpolate field2 U */ |
647 |
|
interpolate8x4_switch(dec->cur.u+stride2,dec->refn[ref].u+pMB->field_for_bot*stride2, |
648 |
|
8*x_pos,4*y_pos,uvbot_dx,DIV2ROUND(uvbot_dy),stride,rounding); |
649 |
|
|
650 |
|
/* Interpolate field2 V */ |
651 |
|
interpolate8x4_switch(dec->cur.v+stride2,dec->refn[ref].v+pMB->field_for_bot*stride2, |
652 |
|
8*x_pos,4*y_pos,uvbot_dx,DIV2ROUND(uvbot_dy),stride,rounding); |
653 |
|
} |
654 |
|
} |
655 |
|
else |
656 |
|
{ |
657 |
|
/* We don't expect 4 motion vectors in interlaced mode */ |
658 |
|
} |
659 |
|
|
660 |
|
stop_comp_timer(); |
661 |
|
|
662 |
|
/* Must add error correction? */ |
663 |
|
if(cbp) |
664 |
|
decoder_mb_decode(dec, cbp, bs, pY_Cur, pU_Cur, pV_Cur, pMB); |
665 |
|
} |
666 |
|
|
667 |
static void |
static void |
668 |
decoder_mbgmc(DECODER * dec, |
decoder_mbgmc(DECODER * dec, |
669 |
MACROBLOCK * const pMB, |
MACROBLOCK * const pMB, |
831 |
ret_mv->y = mv.y; |
ret_mv->y = mv.y; |
832 |
} |
} |
833 |
|
|
834 |
|
/* We use this when decoder runs interlaced -> different prediction */ |
835 |
|
|
836 |
|
static void get_motion_vector_interlaced(DECODER * dec, |
837 |
|
Bitstream * bs, |
838 |
|
int x, |
839 |
|
int y, |
840 |
|
int k, |
841 |
|
MACROBLOCK *pMB, |
842 |
|
int fcode, |
843 |
|
const int bound) |
844 |
|
{ |
845 |
|
const int scale_fac = 1 << (fcode - 1); |
846 |
|
const int high = (32 * scale_fac) - 1; |
847 |
|
const int low = ((-32) * scale_fac); |
848 |
|
const int range = (64 * scale_fac); |
849 |
|
|
850 |
|
/* Get interlaced prediction */ |
851 |
|
const VECTOR pmv=get_pmv2_interlaced(dec->mbs,dec->mb_width,bound,x,y,k); |
852 |
|
VECTOR mv,mvf1,mvf2; |
853 |
|
|
854 |
|
if(!pMB->field_pred) |
855 |
|
{ |
856 |
|
mv.x = get_mv(bs,fcode); |
857 |
|
mv.y = get_mv(bs,fcode); |
858 |
|
|
859 |
|
mv.x += pmv.x; |
860 |
|
mv.y += pmv.y; |
861 |
|
|
862 |
|
if(mv.x<low) { |
863 |
|
mv.x += range; |
864 |
|
} else if (mv.x>high) { |
865 |
|
mv.x-=range; |
866 |
|
} |
867 |
|
|
868 |
|
if (mv.y < low) { |
869 |
|
mv.y += range; |
870 |
|
} else if (mv.y > high) { |
871 |
|
mv.y -= range; |
872 |
|
} |
873 |
|
|
874 |
|
pMB->mvs[0]=pMB->mvs[1]=pMB->mvs[2]=pMB->mvs[3]=mv; |
875 |
|
} |
876 |
|
else |
877 |
|
{ |
878 |
|
mvf1.x = get_mv(bs, fcode); |
879 |
|
mvf1.y = get_mv(bs, fcode); |
880 |
|
|
881 |
|
mvf1.x += pmv.x; |
882 |
|
mvf1.y = 2*(mvf1.y+pmv.y/2); /* It's multiple of 2 */ |
883 |
|
|
884 |
|
if (mvf1.x < low) { |
885 |
|
mvf1.x += range; |
886 |
|
} else if (mvf1.x > high) { |
887 |
|
mvf1.x -= range; |
888 |
|
} |
889 |
|
|
890 |
|
if (mvf1.y < low) { |
891 |
|
mvf1.y += range; |
892 |
|
} else if (mvf1.y > high) { |
893 |
|
mvf1.y -= range; |
894 |
|
} |
895 |
|
|
896 |
|
mvf2.x = get_mv(bs, fcode); |
897 |
|
mvf2.y = get_mv(bs, fcode); |
898 |
|
|
899 |
|
mvf2.x += pmv.x; |
900 |
|
mvf2.y = 2*(mvf2.y+pmv.y/2); /* It's multiple of 2 */ |
901 |
|
|
902 |
|
if (mvf2.x < low) { |
903 |
|
mvf2.x += range; |
904 |
|
} else if (mvf2.x > high) { |
905 |
|
mvf2.x -= range; |
906 |
|
} |
907 |
|
|
908 |
|
if (mvf2.y < low) { |
909 |
|
mvf2.y += range; |
910 |
|
} else if (mvf2.y > high) { |
911 |
|
mvf2.y -= range; |
912 |
|
} |
913 |
|
|
914 |
|
pMB->mvs[0]=mvf1; |
915 |
|
pMB->mvs[1]=mvf2; |
916 |
|
pMB->mvs[2].x=pMB->mvs[3].x=0; |
917 |
|
pMB->mvs[2].y=pMB->mvs[3].y=0; |
918 |
|
|
919 |
|
/* Calculate average for as it is field predicted */ |
920 |
|
pMB->mvs_avg.x=DIV2ROUND(pMB->mvs[0].x+pMB->mvs[1].x); |
921 |
|
pMB->mvs_avg.y=DIV2ROUND(pMB->mvs[0].y+pMB->mvs[1].y); |
922 |
|
} |
923 |
|
} |
924 |
|
|
925 |
/* for P_VOP set gmc_warp to NULL */ |
/* for P_VOP set gmc_warp to NULL */ |
926 |
static void |
static void |
927 |
decoder_pframe(DECODER * dec, |
decoder_pframe(DECODER * dec, |
1014 |
} |
} |
1015 |
mb->quant = quant; |
mb->quant = quant; |
1016 |
|
|
1017 |
|
mb->field_pred=0; |
1018 |
if (dec->interlacing) { |
if (dec->interlacing) { |
1019 |
if (cbp || intra) { |
if (cbp || intra) { |
1020 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
1040 |
|
|
1041 |
} else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
} else if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
1042 |
|
|
1043 |
if (dec->interlacing && mb->field_pred) { |
if(dec->interlacing) { |
1044 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
/* Get motion vectors interlaced, field_pred is handled there */ |
1045 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[1], fcode, bound); |
get_motion_vector_interlaced(dec, bs, x, y, 0, mb, fcode, bound); |
1046 |
} else { |
} else { |
1047 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
1048 |
mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = mb->mvs[0]; |
1049 |
} |
} |
1050 |
} else if (mb->mode == MODE_INTER4V ) { |
} else if (mb->mode == MODE_INTER4V ) { |
1051 |
|
/* interlaced missing here */ |
1052 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
1053 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
1054 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
1061 |
continue; |
continue; |
1062 |
} |
} |
1063 |
|
|
1064 |
|
/* See how to decode */ |
1065 |
|
if(!mb->field_pred) |
1066 |
decoder_mbinter(dec, mb, x, y, cbp, bs, rounding, 0); |
decoder_mbinter(dec, mb, x, y, cbp, bs, rounding, 0); |
1067 |
|
else |
1068 |
|
decoder_mbinter_field(dec, mb, x, y, cbp, bs, rounding, 0); |
1069 |
|
|
1070 |
} else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
} else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
1071 |
mb->mode = MODE_NOT_CODED_GMC; |
mb->mode = MODE_NOT_CODED_GMC; |
1083 |
|
|
1084 |
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; |
1085 |
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; |
1086 |
|
mb->field_pred=0; /* (!) */ |
1087 |
|
|
1088 |
decoder_mbinter(dec, mb, x, y, 0, bs, |
decoder_mbinter(dec, mb, x, y, 0, bs, |
1089 |
rounding, 0); |
rounding, 0); |
1168 |
b_uv_dy = pMB->b_mvs[0].y; |
b_uv_dy = pMB->b_mvs[0].y; |
1169 |
|
|
1170 |
if (dec->quarterpel) { |
if (dec->quarterpel) { |
1171 |
|
if (dec->bs_version <= BS_VERSION_BUGGY_CHROMA_ROUNDING) { |
1172 |
|
uv_dx = (uv_dx>>1) | (uv_dx&1); |
1173 |
|
uv_dy = (uv_dy>>1) | (uv_dy&1); |
1174 |
|
b_uv_dx = (b_uv_dx>>1) | (b_uv_dx&1); |
1175 |
|
b_uv_dy = (b_uv_dy>>1) | (b_uv_dy&1); |
1176 |
|
} |
1177 |
|
else { |
1178 |
uv_dx /= 2; |
uv_dx /= 2; |
1179 |
uv_dy /= 2; |
uv_dy /= 2; |
1180 |
b_uv_dx /= 2; |
b_uv_dx /= 2; |
1181 |
b_uv_dy /= 2; |
b_uv_dy /= 2; |
1182 |
} |
} |
1183 |
|
} |
1184 |
|
|
1185 |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
uv_dx = (uv_dx >> 1) + roundtab_79[uv_dx & 0x3]; |
1186 |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
uv_dy = (uv_dy >> 1) + roundtab_79[uv_dy & 0x3]; |
1194 |
b_uv_dy = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; |
b_uv_dy = pMB->b_mvs[0].y + pMB->b_mvs[1].y + pMB->b_mvs[2].y + pMB->b_mvs[3].y; |
1195 |
|
|
1196 |
if (dec->quarterpel) { |
if (dec->quarterpel) { |
1197 |
|
if (dec->bs_version <= BS_VERSION_BUGGY_CHROMA_ROUNDING) { |
1198 |
|
uv_dx = (uv_dx>>1) | (uv_dx&1); |
1199 |
|
uv_dy = (uv_dy>>1) | (uv_dy&1); |
1200 |
|
b_uv_dx = (b_uv_dx>>1) | (b_uv_dx&1); |
1201 |
|
b_uv_dy = (b_uv_dy>>1) | (b_uv_dy&1); |
1202 |
|
} |
1203 |
|
else { |
1204 |
uv_dx /= 2; |
uv_dx /= 2; |
1205 |
uv_dy /= 2; |
uv_dy /= 2; |
1206 |
b_uv_dx /= 2; |
b_uv_dx /= 2; |
1207 |
b_uv_dy /= 2; |
b_uv_dy /= 2; |
1208 |
} |
} |
1209 |
|
} |
1210 |
|
|
1211 |
uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
uv_dx = (uv_dx >> 3) + roundtab_76[uv_dx & 0xf]; |
1212 |
uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; |
uv_dy = (uv_dy >> 3) + roundtab_76[uv_dy & 0xf]; |
1359 |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
MACROBLOCK *mb = &dec->mbs[y * dec->mb_width + x]; |
1360 |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
MACROBLOCK *last_mb = &dec->last_mbs[y * dec->mb_width + x]; |
1361 |
const int fcode_max = (fcode_forward>fcode_backward) ? fcode_forward : fcode_backward; |
const int fcode_max = (fcode_forward>fcode_backward) ? fcode_forward : fcode_backward; |
1362 |
uint32_t intra_dc_threshold; /* fake variable */ |
int intra_dc_threshold; /* fake variable */ |
1363 |
|
|
1364 |
if (check_resync_marker(bs, fcode_max - 1)) { |
if (check_resync_marker(bs, fcode_max - 1)) { |
1365 |
int bound = read_video_packet_header(bs, dec, fcode_max - 1, &quant, |
int bound = read_video_packet_header(bs, dec, fcode_max - 1, &quant, |
1485 |
} |
} |
1486 |
|
|
1487 |
/* perform post processing if necessary, and output the image */ |
/* perform post processing if necessary, and output the image */ |
1488 |
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
static void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1489 |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, |
1490 |
int coding_type, int quant) |
int coding_type, int quant) |
1491 |
{ |
{ |
1516 |
stats->data.vop.qscale_stride = dec->mb_width; |
stats->data.vop.qscale_stride = dec->mb_width; |
1517 |
stats->data.vop.qscale = dec->qscale; |
stats->data.vop.qscale = dec->qscale; |
1518 |
if (stats->data.vop.qscale != NULL && mbs != NULL) { |
if (stats->data.vop.qscale != NULL && mbs != NULL) { |
1519 |
int i; |
unsigned int i; |
1520 |
for (i = 0; i < dec->mb_width*dec->mb_height; i++) |
for (i = 0; i < dec->mb_width*dec->mb_height; i++) |
1521 |
stats->data.vop.qscale[i] = mbs[i].quant; |
stats->data.vop.qscale[i] = mbs[i].quant; |
1522 |
} else |
} else |