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* along with this program ; if not, write to the Free Software |
* along with this program ; if not, write to the Free Software |
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* 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 |
* |
* |
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* $Id: decoder.c,v 1.49.2.23 2003-12-10 12:09:34 syskin Exp $ |
* $Id: decoder.c,v 1.49.2.31 2004-02-03 02:56:57 syskin Exp $ |
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* |
* |
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****************************************************************************/ |
****************************************************************************/ |
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58 |
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59 |
#include "image/image.h" |
#include "image/image.h" |
60 |
#include "image/colorspace.h" |
#include "image/colorspace.h" |
61 |
|
#include "image/postprocessing.h" |
62 |
#include "utils/mem_align.h" |
#include "utils/mem_align.h" |
63 |
|
|
64 |
static int |
static int |
205 |
dec->last_mbs = NULL; |
dec->last_mbs = NULL; |
206 |
|
|
207 |
init_timer(); |
init_timer(); |
208 |
|
init_postproc(&dec->postproc); |
209 |
init_mpeg_matrix(dec->mpeg_quant_matrices); |
init_mpeg_matrix(dec->mpeg_quant_matrices); |
210 |
|
|
211 |
/* For B-frame support (used to save reference frame's time */ |
/* For B-frame support (used to save reference frame's time */ |
851 |
mb->quant = quant; |
mb->quant = quant; |
852 |
|
|
853 |
if (dec->interlacing) { |
if (dec->interlacing) { |
854 |
if ((cbp || intra) && !mcsel) { |
if (cbp || intra) { |
855 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
856 |
DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
DPRINTF(XVID_DEBUG_MB,"decp: field_dct: %i\n", mb->field_dct); |
857 |
} |
} |
858 |
|
|
859 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if ((mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) && !mcsel) { |
860 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
861 |
DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
DPRINTF(XVID_DEBUG_MB, "decp: field_pred: %i\n", mb->field_pred); |
862 |
|
|
900 |
|
|
901 |
} else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
} else if (gmc_warp) { /* a not coded S(GMC)-VOP macroblock */ |
902 |
mb->mode = MODE_NOT_CODED_GMC; |
mb->mode = MODE_NOT_CODED_GMC; |
903 |
|
mb->quant = quant; |
904 |
decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, rounding); |
decoder_mbgmc(dec, mb, x, y, fcode, 0x00, bs, rounding); |
905 |
|
|
906 |
if(dec->out_frm && cp_mb > 0) { |
if(dec->out_frm && cp_mb > 0) { |
910 |
st_mb = x+1; |
st_mb = x+1; |
911 |
} else { /* not coded P_VOP macroblock */ |
} else { /* not coded P_VOP macroblock */ |
912 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
913 |
|
mb->quant = quant; |
914 |
|
|
915 |
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; |
916 |
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; |
1318 |
|
|
1319 |
/* perform post processing if necessary, and output the image */ |
/* perform post processing if necessary, and output the image */ |
1320 |
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
void decoder_output(DECODER * dec, IMAGE * img, MACROBLOCK * mbs, |
1321 |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, int coding_type) |
xvid_dec_frame_t * frame, xvid_dec_stats_t * stats, |
1322 |
|
int coding_type, int quant) |
1323 |
{ |
{ |
1324 |
if (frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV)) /* post process */ |
if (dec->cartoon_mode) |
1325 |
|
frame->general &= ~XVID_FILMEFFECT; |
1326 |
|
|
1327 |
|
if (frame->general & (XVID_DEBLOCKY|XVID_DEBLOCKUV|XVID_FILMEFFECT) && mbs != NULL) /* post process */ |
1328 |
{ |
{ |
1329 |
/* note: image is stored to tmp */ |
/* note: image is stored to tmp */ |
1330 |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
image_copy(&dec->tmp, img, dec->edged_width, dec->height); |
1331 |
image_deblock(&dec->tmp, dec->edged_width, |
image_postproc(&dec->postproc, &dec->tmp, dec->edged_width, |
1332 |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
mbs, dec->mb_width, dec->mb_height, dec->mb_width, |
1333 |
frame->general); |
frame->general, dec->frames, (coding_type == B_VOP)); |
1334 |
img = &dec->tmp; |
img = &dec->tmp; |
1335 |
} |
} |
1336 |
|
|
1377 |
/* 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 |
1378 |
we have a reference frame, then outout the reference frame */ |
we have a reference frame, then outout the reference frame */ |
1379 |
if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { |
if (!(dec->low_delay_default && dec->packed_mode) && !dec->low_delay && dec->frames>0) { |
1380 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1381 |
dec->frames = 0; |
dec->frames = 0; |
1382 |
ret = 0; |
ret = 0; |
1383 |
} else { |
} else { |
1447 |
/* packed_mode: special-N_VOP treament */ |
/* packed_mode: special-N_VOP treament */ |
1448 |
if (dec->packed_mode && coding_type == N_VOP) { |
if (dec->packed_mode && coding_type == N_VOP) { |
1449 |
if (dec->low_delay_default && dec->frames > 0) { |
if (dec->low_delay_default && dec->frames > 0) { |
1450 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1451 |
output = 1; |
output = 1; |
1452 |
} |
} |
1453 |
/* ignore otherwise */ |
/* ignore otherwise */ |
1481 |
/* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
/* note: for packed_mode, output is performed when the special-N_VOP is decoded */ |
1482 |
if (!(dec->low_delay_default && dec->packed_mode)) { |
if (!(dec->low_delay_default && dec->packed_mode)) { |
1483 |
if (dec->low_delay) { |
if (dec->low_delay) { |
1484 |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type); |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); |
1485 |
output = 1; |
output = 1; |
1486 |
} else if (dec->frames > 0) { /* is the reference frame valid? */ |
} else if (dec->frames > 0) { /* is the reference frame valid? */ |
1487 |
/* output the reference frame */ |
/* output the reference frame */ |
1488 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1489 |
output = 1; |
output = 1; |
1490 |
} |
} |
1491 |
} |
} |
1510 |
/* attemping to decode a bvop without atleast 2 reference frames */ |
/* attemping to decode a bvop without atleast 2 reference frames */ |
1511 |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1512 |
"broken b-frame, mising ref frames"); |
"broken b-frame, mising ref frames"); |
1513 |
stats->type = XVID_TYPE_NOTHING; |
if (stats) stats->type = XVID_TYPE_NOTHING; |
1514 |
} else if (dec->time_pp <= dec->time_bp) { |
} else if (dec->time_pp <= dec->time_bp) { |
1515 |
/* this occurs when dx50_bvop_compatibility==0 sequences are |
/* this occurs when dx50_bvop_compatibility==0 sequences are |
1516 |
decoded in vfw. */ |
decoded in vfw. */ |
1517 |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1518 |
"broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); |
"broken b-frame, tpp=%i tbp=%i", dec->time_pp, dec->time_bp); |
1519 |
stats->type = XVID_TYPE_NOTHING; |
if (stats) stats->type = XVID_TYPE_NOTHING; |
1520 |
} else { |
} else { |
1521 |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
decoder_bframe(dec, &bs, quant, fcode_forward, fcode_backward); |
1522 |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type); |
decoder_output(dec, &dec->cur, dec->mbs, frame, stats, coding_type, quant); |
1523 |
} |
} |
1524 |
|
|
1525 |
output = 1; |
output = 1; |
1541 |
if (dec->low_delay_default && output == 0) { |
if (dec->low_delay_default && output == 0) { |
1542 |
if (dec->packed_mode && seen_something) { |
if (dec->packed_mode && seen_something) { |
1543 |
/* output the recently decoded frame */ |
/* output the recently decoded frame */ |
1544 |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type); |
decoder_output(dec, &dec->refn[0], dec->last_mbs, frame, stats, dec->last_coding_type, quant); |
1545 |
} else { |
} else { |
1546 |
image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); |
image_clear(&dec->cur, dec->width, dec->height, dec->edged_width, 0, 128, 128); |
1547 |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 16, |
1549 |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, |
image_printf(&dec->cur, dec->edged_width, dec->height, 16, 64, |
1550 |
"bframe decoder lag"); |
"bframe decoder lag"); |
1551 |
|
|
1552 |
decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP); |
decoder_output(dec, &dec->cur, NULL, frame, stats, P_VOP, quant); |
1553 |
if (stats) stats->type = XVID_TYPE_NOTHING; |
if (stats) stats->type = XVID_TYPE_NOTHING; |
1554 |
} |
} |
1555 |
} |
} |