280 |
} |
} |
281 |
|
|
282 |
|
|
283 |
static void |
static __inline void |
284 |
CodeBlockIntra(const FRAMEINFO * frame, |
CodeBlockIntra(const FRAMEINFO * frame, |
285 |
const MACROBLOCK * pMB, |
const MACROBLOCK * pMB, |
286 |
int16_t qcoeff[6 * 64], |
int16_t qcoeff[6 * 64], |
370 |
|
|
371 |
// interlacing |
// interlacing |
372 |
if (frame->global_flags & XVID_INTERLACING) { |
if (frame->global_flags & XVID_INTERLACING) { |
373 |
|
if (pMB->cbp) { |
374 |
BitstreamPutBit(bs, pMB->field_dct); |
BitstreamPutBit(bs, pMB->field_dct); |
375 |
DEBUG1("codep: field_dct: ", pMB->field_dct); |
DEBUG1("codep: field_dct: ", pMB->field_dct); |
376 |
|
} |
377 |
|
|
378 |
// if inter block, write field ME flag |
// if inter block, write field ME flag |
379 |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
if (pMB->mode == MODE_INTER || pMB->mode == MODE_INTER_Q) { |
414 |
Statistics * pStat) |
Statistics * pStat) |
415 |
{ |
{ |
416 |
|
|
|
int intra = (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q); |
|
|
|
|
417 |
if (frame->coding_type == P_VOP) { |
if (frame->coding_type == P_VOP) { |
|
if (pMB->cbp == 0 && pMB->mode == MODE_INTER && pMB->mvs[0].x == 0 && |
|
|
pMB->mvs[0].y == 0) { |
|
|
BitstreamPutBit(bs, 1); // not_coded |
|
|
return; |
|
|
} else |
|
418 |
BitstreamPutBit(bs, 0); // coded |
BitstreamPutBit(bs, 0); // coded |
419 |
} |
} |
420 |
|
|
421 |
if (intra) |
if (pMB->mode == MODE_INTRA || pMB->mode == MODE_INTRA_Q) |
422 |
CodeBlockIntra(frame, pMB, qcoeff, bs, pStat); |
CodeBlockIntra(frame, pMB, qcoeff, bs, pStat); |
423 |
else |
else |
424 |
CodeBlockInter(frame, pMB, qcoeff, bs, pStat); |
CodeBlockInter(frame, pMB, qcoeff, bs, pStat); |
425 |
|
|
426 |
} |
} |
427 |
|
|
428 |
|
/* |
429 |
|
// moved to mbcoding.h so that in can be 'static __inline' |
430 |
|
void |
431 |
|
MBSkip(Bitstream * bs) |
432 |
|
{ |
433 |
|
BitstreamPutBit(bs, 1); // not coded |
434 |
|
} |
435 |
|
*/ |
436 |
|
|
437 |
/*************************************************************** |
/*************************************************************** |
438 |
* bframe encoding start |
* bframe encoding start |
439 |
***************************************************************/ |
***************************************************************/ |
446 |
3 0001b forward mc+q dbquant, mvdf |
3 0001b forward mc+q dbquant, mvdf |
447 |
*/ |
*/ |
448 |
|
|
449 |
void |
static __inline void |
450 |
put_bvop_mbtype(Bitstream * bs, |
put_bvop_mbtype(Bitstream * bs, |
451 |
int value) |
int value) |
452 |
{ |
{ |
453 |
switch (value) { |
switch (value) { |
454 |
case 0: |
case MODE_FORWARD: |
|
BitstreamPutBit(bs, 1); |
|
|
return; |
|
|
|
|
|
case 1: |
|
|
BitstreamPutBit(bs, 0); |
|
|
BitstreamPutBit(bs, 1); |
|
|
return; |
|
|
|
|
|
case 2: |
|
|
BitstreamPutBit(bs, 0); |
|
|
BitstreamPutBit(bs, 0); |
|
|
BitstreamPutBit(bs, 1); |
|
|
return; |
|
|
|
|
|
case 3: |
|
455 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
456 |
|
case MODE_BACKWARD: |
457 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
458 |
|
case MODE_INTERPOLATE: |
459 |
BitstreamPutBit(bs, 0); |
BitstreamPutBit(bs, 0); |
460 |
|
case MODE_DIRECT: |
461 |
BitstreamPutBit(bs, 1); |
BitstreamPutBit(bs, 1); |
462 |
return; |
default: |
463 |
|
break; |
|
default:; // invalid! |
|
|
|
|
464 |
} |
} |
|
|
|
465 |
} |
} |
466 |
|
|
467 |
/* |
/* |
471 |
+2 11b |
+2 11b |
472 |
*/ |
*/ |
473 |
|
|
474 |
void |
static __inline void |
475 |
put_bvop_dbquant(Bitstream * bs, |
put_bvop_dbquant(Bitstream * bs, |
476 |
int value) |
int value) |
477 |
{ |
{ |
504 |
Bitstream * bs, |
Bitstream * bs, |
505 |
Statistics * pStat) |
Statistics * pStat) |
506 |
{ |
{ |
507 |
int i; |
int vcode = fcode; |
508 |
|
unsigned int i; |
509 |
|
|
510 |
/* ------------------------------------------------------------------ |
/* ------------------------------------------------------------------ |
511 |
when a block is skipped it is decoded DIRECT(0,0) |
when a block is skipped it is decoded DIRECT(0,0) |
535 |
put_bvop_dbquant(bs, 0); // todo: mb->dquant = 0 |
put_bvop_dbquant(bs, 0); // todo: mb->dquant = 0 |
536 |
} |
} |
537 |
|
|
538 |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_FORWARD) { |
switch (mb->mode) { |
539 |
CodeVector(bs, mb->pmvs[0].x, fcode, pStat); |
case MODE_INTERPOLATE: |
540 |
CodeVector(bs, mb->pmvs[0].y, fcode, pStat); |
CodeVector(bs, mb->pmvs[1].x, vcode, pStat); //forward vector of interpolate mode |
541 |
} |
CodeVector(bs, mb->pmvs[1].y, vcode, pStat); |
542 |
|
case MODE_BACKWARD: |
543 |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_BACKWARD) { |
vcode = bcode; |
544 |
CodeVector(bs, mb->b_pmvs[0].x, bcode, pStat); |
case MODE_FORWARD: |
545 |
CodeVector(bs, mb->b_pmvs[0].y, bcode, pStat); |
CodeVector(bs, mb->pmvs[0].x, vcode, pStat); |
546 |
} |
CodeVector(bs, mb->pmvs[0].y, vcode, pStat); |
547 |
|
break; |
548 |
if (mb->mode == MODE_DIRECT) { |
case MODE_DIRECT: |
549 |
CodeVector(bs, mb->mvs[0].x, 1, pStat); /* fcode is always 1 for delta vector */ |
CodeVector(bs, mb->pmvs[3].x, 1, pStat); // fcode is always 1 for delta vector |
550 |
CodeVector(bs, mb->mvs[0].y, 1, pStat); /* prediction is always (0,0) */ |
CodeVector(bs, mb->pmvs[3].y, 1, pStat); // prediction is always (0,0) |
551 |
|
default: break; |
552 |
} |
} |
553 |
|
|
554 |
for (i = 0; i < 6; i++) { |
for (i = 0; i < 6; i++) { |
636 |
|
|
637 |
} |
} |
638 |
|
|
639 |
int |
static __inline int |
640 |
get_mv_data(Bitstream * bs) |
get_mv_data(Bitstream * bs) |
641 |
{ |
{ |
642 |
|
|
753 |
{ |
{ |
754 |
|
|
755 |
const uint16_t *scan = scan_tables[direction]; |
const uint16_t *scan = scan_tables[direction]; |
756 |
int level; |
int level, run, last; |
|
int run; |
|
|
int last; |
|
757 |
|
|
758 |
do { |
do { |
759 |
level = get_coeff(bs, &run, &last, 1, 0); |
level = get_coeff(bs, &run, &last, 1, 0); |