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 1.37.2.21 2002-12-14 06:07:02 suxen_drol Exp $ |
* $Id: decoder.c,v 1.37.2.24 2002-12-29 16:59:50 suxen_drol Exp $ |
59 |
* |
* |
60 |
*************************************************************************/ |
*************************************************************************/ |
61 |
|
|
678 |
|
|
679 |
if (dec->interlacing) { |
if (dec->interlacing) { |
680 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
681 |
DEBUG1("deci: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_MB,"deci: field_dct: %i", mb->field_dct); |
682 |
} |
} |
683 |
|
|
684 |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
decoder_mbintra(dec, mb, x, y, acpred_flag, cbp, bs, quant, |
856 |
if (dec->interlacing) { |
if (dec->interlacing) { |
857 |
if (cbp || intra) { |
if (cbp || intra) { |
858 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
859 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DPRINTF(DPRINTF_MB,"decp: field_dct: %i", mb->field_dct); |
860 |
} |
} |
861 |
|
|
862 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
863 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
864 |
DEBUG1("decp: field_pred: ", mb->field_pred); |
DPRINTF(DPRINTF_MB, "decp: field_pred: %i", mb->field_pred); |
865 |
|
|
866 |
if (mb->field_pred) { |
if (mb->field_pred) { |
867 |
mb->field_for_top = BitstreamGetBit(bs); |
mb->field_for_top = BitstreamGetBit(bs); |
868 |
DEBUG1("decp: field_for_top: ", mb->field_for_top); |
DPRINTF(DPRINTF_MB,"decp: field_for_top: %i", mb->field_for_top); |
869 |
mb->field_for_bot = BitstreamGetBit(bs); |
mb->field_for_bot = BitstreamGetBit(bs); |
870 |
DEBUG1("decp: field_for_bot: ", mb->field_for_bot); |
DPRINTF(DPRINTF_MB,"decp: field_for_bot: %i", mb->field_for_bot); |
871 |
} |
} |
872 |
} |
} |
873 |
} |
} |
915 |
} |
} |
916 |
else if (gmc_mv) /* not coded S_VOP macroblock */ |
else if (gmc_mv) /* not coded S_VOP macroblock */ |
917 |
{ |
{ |
918 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED_GMC; |
919 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = gmc_sanitize(gmc_mv[0].x, dec->quarterpel, fcode); |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = gmc_sanitize(gmc_mv[0].x, dec->quarterpel, fcode); |
920 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = gmc_sanitize(gmc_mv[0].y, dec->quarterpel, fcode); |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = gmc_sanitize(gmc_mv[0].y, dec->quarterpel, fcode); |
921 |
decoder_mbinter(dec, mb, x, y, 0, 0, bs, quant, rounding, reduced_resolution); |
decoder_mbinter(dec, mb, x, y, 0, 0, bs, quant, rounding, reduced_resolution); |
1467 |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
mb->b_mvs[0] = mb->b_mvs[1] = mb->b_mvs[2] = mb->b_mvs[3] = |
1468 |
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
mb->mvs[0] = mb->mvs[1] = mb->mvs[2] = mb->mvs[3] = zeromv; |
1469 |
|
|
1470 |
// the last P_VOP is skip macroblock ? |
// skip if the co-located P_VOP macroblock is not coded |
1471 |
|
// note: gmc+not_coded isn't skipped |
1472 |
|
|
1473 |
if (last_mb->mode == MODE_NOT_CODED) { |
if (last_mb->mode == MODE_NOT_CODED) { |
1474 |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
//DEBUG2("Skip MB in B-frame at (X,Y)=!",x,y); |
1475 |
mb->cbp = 0; |
mb->cbp = 0; |
1583 |
break; |
break; |
1584 |
|
|
1585 |
default: |
default: |
1586 |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DPRINTF(DPRINTF_ERROR,"Not support B-frame mb_type = %i", mb->mb_type); |
1587 |
} |
} |
1588 |
|
|
1589 |
} // end of FOR |
} // end of FOR |
1653 |
dec->low_delay_default = (frame->general & XVID_DEC_LOWDELAY); |
dec->low_delay_default = (frame->general & XVID_DEC_LOWDELAY); |
1654 |
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
dec->out_frm = (frame->colorspace == XVID_CSP_EXTERN) ? frame->image : NULL; |
1655 |
|
|
1656 |
|
if ((frame->general & XVID_DEC_DISCONTINUITY)) |
1657 |
|
dec->frames = 0; |
1658 |
|
|
1659 |
if (frame->length < 0) /* decoder flush */ |
if (frame->length < 0) /* decoder flush */ |
1660 |
{ |
{ |
1661 |
/* if not decoding "low_delay/packed", and this isn't low_delay and |
/* if not decoding "low_delay/packed", and this isn't low_delay and |
1840 |
{ |
{ |
1841 |
/* output the recently decoded frame */ |
/* output the recently decoded frame */ |
1842 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, dec->last_reduced_resolution); |
1843 |
|
output = 1; |
1844 |
} |
} |
1845 |
else |
else |
1846 |
{ |
{ |
1852 |
|
|
1853 |
decoder_output(dec, &dec->cur, NULL, frame, 1 /*disable pp*/); |
decoder_output(dec, &dec->cur, NULL, frame, 1 /*disable pp*/); |
1854 |
} |
} |
|
output = 1; |
|
1855 |
} |
} |
1856 |
|
|
1857 |
frame->length = BitstreamPos(&bs) / 8; |
frame->length = BitstreamPos(&bs) / 8; |