39 |
* MinChen <chenm001@163.com> |
* MinChen <chenm001@163.com> |
40 |
* 14.04.2002 added FrameCodeB() |
* 14.04.2002 added FrameCodeB() |
41 |
* |
* |
42 |
* $Id: encoder.c,v 1.61 2002-07-21 14:05:38 edgomez Exp $ |
* $Id: encoder.c,v 1.73 2002-08-07 10:09:00 chl Exp $ |
43 |
* |
* |
44 |
****************************************************************************/ |
****************************************************************************/ |
45 |
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46 |
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47 |
#include <stdlib.h> |
#include <stdlib.h> |
48 |
#include <stdio.h> |
#include <stdio.h> |
49 |
#include <math.h> |
#include <math.h> |
56 |
#include "image/image.h" |
#include "image/image.h" |
57 |
#ifdef BFRAMES |
#ifdef BFRAMES |
58 |
#include "image/font.h" |
#include "image/font.h" |
59 |
|
#include "motion/sad.h" |
60 |
#endif |
#endif |
61 |
#include "motion/motion.h" |
#include "motion/motion.h" |
62 |
#include "bitstream/cbp.h" |
#include "bitstream/cbp.h" |
424 |
pEnc->mbParam.m_seconds = 0; |
pEnc->mbParam.m_seconds = 0; |
425 |
pEnc->mbParam.m_ticks = 0; |
pEnc->mbParam.m_ticks = 0; |
426 |
pEnc->m_framenum = 0; |
pEnc->m_framenum = 0; |
427 |
pEnc->last_pframe = 1; |
pEnc->last_pframe = 0; |
428 |
|
pEnc->last_sync = 0; |
429 |
#endif |
#endif |
430 |
|
|
431 |
pParam->handle = (void *) pEnc; |
pParam->handle = (void *) pEnc; |
624 |
#ifdef BFRAMES |
#ifdef BFRAMES |
625 |
void inc_frame_num(Encoder * pEnc) |
void inc_frame_num(Encoder * pEnc) |
626 |
{ |
{ |
|
pEnc->iFrameNum++; |
|
627 |
pEnc->mbParam.m_ticks += pEnc->mbParam.fincr; |
pEnc->mbParam.m_ticks += pEnc->mbParam.fincr; |
628 |
|
|
|
pEnc->mbParam.m_seconds = pEnc->mbParam.m_ticks / pEnc->mbParam.fbase; |
|
629 |
pEnc->mbParam.m_ticks = pEnc->mbParam.m_ticks % pEnc->mbParam.fbase; |
pEnc->mbParam.m_ticks = pEnc->mbParam.m_ticks % pEnc->mbParam.fbase; |
630 |
|
|
631 |
|
/* fprintf(stderr, "ENC %c %i:%i %i\n", |
632 |
|
pEnc->current->coding_type == I_VOP ? 'I' : pEnc->current->coding_type == P_VOP ? 'P' : 'B', |
633 |
|
pEnc->mbParam.m_seconds, pEnc->mbParam.m_ticks,pEnc->last_sync); |
634 |
|
*/ |
635 |
|
|
636 |
|
if (pEnc->mbParam.m_ticks < pEnc->last_sync) |
637 |
|
pEnc->mbParam.m_seconds = 1; // more than 1 second since last I or P is not supported. |
638 |
|
else |
639 |
|
pEnc->mbParam.m_seconds = 0; |
640 |
|
|
641 |
|
if (pEnc->current->coding_type != B_VOP) |
642 |
|
pEnc->last_sync = pEnc->mbParam.m_ticks; |
643 |
|
|
644 |
} |
} |
645 |
#endif |
#endif |
646 |
|
|
839 |
|
|
840 |
pFrame->intra = 0; |
pFrame->intra = 0; |
841 |
|
|
842 |
BitstreamPutBits(&bs, 0x7f, 8); |
BitstreamWriteVopHeader(&bs, &pEnc->mbParam, pEnc->current, 0); // write N_VOP |
843 |
BitstreamPad(&bs); |
BitstreamPad(&bs); |
844 |
pFrame->length = BitstreamLength(&bs); |
pFrame->length = BitstreamLength(&bs); |
845 |
|
|
868 |
else |
else |
869 |
pEnc->current->quant = pFrame->quant; |
pEnc->current->quant = pFrame->quant; |
870 |
|
|
871 |
if (pEnc->current->quant < 1) |
/* if (pEnc->current->quant < 1) |
872 |
pEnc->current->quant = 1; |
pEnc->current->quant = 1; |
873 |
|
|
874 |
if (pEnc->current->quant > 31) |
if (pEnc->current->quant > 31) |
875 |
pEnc->current->quant = 31; |
pEnc->current->quant = 31; |
876 |
|
*/ |
877 |
pEnc->current->global_flags = pFrame->general; |
pEnc->current->global_flags = pFrame->general; |
878 |
pEnc->current->motion_flags = pFrame->motion; |
pEnc->current->motion_flags = pFrame->motion; |
879 |
|
|
1020 |
* This will be coded as a Bidirectional Frame |
* This will be coded as a Bidirectional Frame |
1021 |
*/ |
*/ |
1022 |
|
|
|
DPRINTF(DPRINTF_DEBUG,"*** BFRAME (store) bf: head=%i tail=%i queue: head=%i tail=%i size=%i", |
|
|
pEnc->bframenum_head, pEnc->bframenum_tail, |
|
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pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size); |
|
|
|
|
1023 |
if ((pEnc->global & XVID_GLOBAL_DEBUG)) { |
if ((pEnc->global & XVID_GLOBAL_DEBUG)) { |
1024 |
image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 200, "BVOP"); |
image_printf(&pEnc->current->image, pEnc->mbParam.edged_width, pEnc->mbParam.height, 5, 200, "BVOP"); |
1025 |
} |
} |
1031 |
} else { |
} else { |
1032 |
pEnc->current->quant = pFrame->bquant; |
pEnc->current->quant = pFrame->bquant; |
1033 |
} |
} |
1034 |
|
if (pEnc->current->quant < 1) |
1035 |
|
pEnc->current->quant = 1; |
1036 |
|
|
1037 |
|
if (pEnc->current->quant > 31) |
1038 |
|
pEnc->current->quant = 31; |
1039 |
|
|
1040 |
|
|
1041 |
|
DPRINTF(DPRINTF_DEBUG,"*** BFRAME (store) bf: head=%i tail=%i queue: head=%i tail=%i size=%i quant=%i\n", |
1042 |
|
pEnc->bframenum_head, pEnc->bframenum_tail, |
1043 |
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pEnc->queue_head, pEnc->queue_tail, pEnc->queue_size,pEnc->current->quant); |
1044 |
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|
1045 |
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|
1046 |
|
|
1047 |
/* store frame into bframe buffer & swap ref back to current */ |
/* store frame into bframe buffer & swap ref back to current */ |
1048 |
SWAP(pEnc->current, pEnc->bframes[pEnc->bframenum_tail]); |
SWAP(pEnc->current, pEnc->bframes[pEnc->bframenum_tail]); |
1057 |
goto bvop_loop; |
goto bvop_loop; |
1058 |
} |
} |
1059 |
|
|
1060 |
|
pEnc->iFrameNum++; |
1061 |
|
|
1062 |
BitstreamPad(&bs); |
BitstreamPad(&bs); |
1063 |
pFrame->length = BitstreamLength(&bs); |
pFrame->length = BitstreamLength(&bs); |
1064 |
|
|
1268 |
|
|
1269 |
#ifdef BFRAMES |
#ifdef BFRAMES |
1270 |
inc_frame_num(pEnc); |
inc_frame_num(pEnc); |
|
#else |
|
|
pEnc->iFrameNum++; |
|
1271 |
#endif |
#endif |
1272 |
|
pEnc->iFrameNum++; |
1273 |
|
|
1274 |
stop_global_timer(); |
stop_global_timer(); |
1275 |
write_timer(); |
write_timer(); |
1549 |
stop_prediction_timer(); |
stop_prediction_timer(); |
1550 |
|
|
1551 |
start_timer(); |
start_timer(); |
1552 |
|
if (pEnc->current->global_flags & XVID_GREYSCALE) |
1553 |
|
{ pMB->cbp &= 0x3C; /* keep only bits 5-2 */ |
1554 |
|
qcoeff[4*64+0]=0; /* zero, because for INTRA MBs DC value is saved */ |
1555 |
|
qcoeff[5*64+0]=0; |
1556 |
|
} |
1557 |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
1558 |
stop_coding_timer(); |
stop_coding_timer(); |
1559 |
} |
} |
1575 |
|
|
1576 |
|
|
1577 |
#define INTRA_THRESHOLD 0.5 |
#define INTRA_THRESHOLD 0.5 |
1578 |
|
#define BFRAME_SKIP_THRESHHOLD 16 |
1579 |
|
|
1580 |
static int |
static int |
1581 |
FrameCodeP(Encoder * pEnc, |
FrameCodeP(Encoder * pEnc, |
1590 |
DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); |
1591 |
|
|
1592 |
int iLimit; |
int iLimit; |
1593 |
uint32_t x, y; |
int x, y, k; |
1594 |
int iSearchRange; |
int iSearchRange; |
1595 |
int bIntra; |
int bIntra; |
1596 |
|
|
1718 |
} |
} |
1719 |
|
|
1720 |
start_timer(); |
start_timer(); |
1721 |
|
|
1722 |
|
/* Finished processing the MB, now check if to CODE or SKIP */ |
1723 |
|
|
1724 |
|
if (pMB->cbp == 0 && pMB->mode == MODE_INTER && pMB->mvs[0].x == 0 && |
1725 |
|
pMB->mvs[0].y == 0) { |
1726 |
|
|
1727 |
|
/* This is a candidate for SKIPping, but check intermediate B-frames first */ |
1728 |
|
|
1729 |
|
#ifdef BFRAMES |
1730 |
|
int iSAD=BFRAME_SKIP_THRESHHOLD; |
1731 |
|
int bSkip=1; |
1732 |
|
|
1733 |
|
for (k=pEnc->bframenum_head; k< pEnc->bframenum_tail; k++) |
1734 |
|
{ |
1735 |
|
iSAD = sad16(pEnc->reference->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, |
1736 |
|
pEnc->bframes[k]->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, |
1737 |
|
pEnc->mbParam.edged_width,BFRAME_SKIP_THRESHHOLD); |
1738 |
|
if (iSAD >= BFRAME_SKIP_THRESHHOLD) |
1739 |
|
{ bSkip = 0; |
1740 |
|
break; |
1741 |
|
} |
1742 |
|
} |
1743 |
|
if (!bSkip) |
1744 |
|
{ |
1745 |
|
if (pEnc->current->global_flags & XVID_GREYSCALE) |
1746 |
|
{ pMB->cbp &= 0x3C; /* keep only bits 5-2 */ |
1747 |
|
qcoeff[4*64+0]=0; /* zero, because DC for INTRA MBs DC value is saved */ |
1748 |
|
qcoeff[5*64+0]=0; |
1749 |
|
} |
1750 |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
1751 |
|
pMB->cbp = 0x80; /* trick! so cbp!=0, but still nothing is written to bs */ |
1752 |
|
} |
1753 |
|
else |
1754 |
|
MBSkip(bs); |
1755 |
|
|
1756 |
|
#else |
1757 |
|
MBSkip(bs); /* without B-frames, no precautions are needed */ |
1758 |
|
|
1759 |
|
#endif |
1760 |
|
|
1761 |
|
} else { |
1762 |
|
if (pEnc->current->global_flags & XVID_GREYSCALE) |
1763 |
|
{ pMB->cbp &= 0x3C; /* keep only bits 5-2 */ |
1764 |
|
qcoeff[4*64+0]=0; /* zero, because DC for INTRA MBs DC value is saved */ |
1765 |
|
qcoeff[5*64+0]=0; |
1766 |
|
} |
1767 |
|
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
1768 |
|
} |
1769 |
|
|
1770 |
stop_coding_timer(); |
stop_coding_timer(); |
1771 |
} |
} |
1772 |
} |
} |
1803 |
#ifdef BFRAMES |
#ifdef BFRAMES |
1804 |
/* frame drop code */ |
/* frame drop code */ |
1805 |
// DPRINTF(DPRINTF_DEBUG, "kmu %i %i %i", pEnc->sStat.kblks, pEnc->sStat.mblks, pEnc->sStat.ublks); |
// DPRINTF(DPRINTF_DEBUG, "kmu %i %i %i", pEnc->sStat.kblks, pEnc->sStat.mblks, pEnc->sStat.ublks); |
1806 |
if (pEnc->sStat.kblks + pEnc->sStat.mblks <= |
if (pEnc->sStat.kblks + pEnc->sStat.mblks < |
1807 |
(pEnc->frame_drop_ratio * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height) / 100) |
(pEnc->frame_drop_ratio * pEnc->mbParam.mb_width * pEnc->mbParam.mb_height) / 100) |
1808 |
{ |
{ |
1809 |
pEnc->sStat.kblks = pEnc->sStat.mblks = 0; |
pEnc->sStat.kblks = pEnc->sStat.mblks = 0; |
1827 |
*pBits = BitstreamPos(bs) - *pBits; |
*pBits = BitstreamPos(bs) - *pBits; |
1828 |
|
|
1829 |
#ifdef BFRAMES |
#ifdef BFRAMES |
1830 |
pEnc->time_pp = ((int32_t)pEnc->mbParam.fbase - (int32_t)pEnc->last_pframe + (int32_t)pEnc->mbParam.m_ticks) % (int32_t)pEnc->mbParam.fbase; |
pEnc->time_pp = ((int32_t)pEnc->mbParam.fbase - (int32_t)pEnc->last_pframe + (int32_t)pEnc->current->ticks) % |
1831 |
|
(int32_t)pEnc->mbParam.fbase; |
1832 |
pEnc->last_pframe = pEnc->mbParam.m_ticks; |
pEnc->last_pframe = pEnc->current->ticks; |
1833 |
#endif |
#endif |
1834 |
|
|
1835 |
return 0; // inter |
return 0; // inter |
1836 |
} |
} |
1837 |
|
|
1888 |
|
|
1889 |
start_timer(); |
start_timer(); |
1890 |
MotionEstimationBVOP(&pEnc->mbParam, frame, |
MotionEstimationBVOP(&pEnc->mbParam, frame, |
1891 |
((int32_t)pEnc->mbParam.fbase + (int32_t)pEnc->mbParam.m_ticks + 1 - (int32_t)pEnc->last_pframe) % pEnc->mbParam.fbase, |
((int32_t)pEnc->mbParam.fbase + pEnc->last_pframe - frame->ticks) % pEnc->mbParam.fbase, |
1892 |
pEnc->time_pp, |
pEnc->time_pp, |
1893 |
pEnc->reference->mbs, f_ref, |
pEnc->reference->mbs, f_ref, |
1894 |
&pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, |
&pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, |
1953 |
qcoeff); |
qcoeff); |
1954 |
//mb->cbp = MBTransQuantBVOP(&pEnc->mbParam, x, y, dct_codes, qcoeff, &frame->image, frame->quant); |
//mb->cbp = MBTransQuantBVOP(&pEnc->mbParam, x, y, dct_codes, qcoeff, &frame->image, frame->quant); |
1955 |
|
|
1956 |
|
if ( (mb->mode == MODE_DIRECT) && (mb->cbp == 0) |
1957 |
if ((mb->mode == MODE_INTERPOLATE || mb->mode == MODE_DIRECT) |
&& (mb->deltamv.x == 0) && (mb->deltamv.y == 0) ) { |
|
&& mb->cbp == 0 && mb->mvs[0].x == 0 && mb->mvs[0].y == 0) { |
|
1958 |
mb->mode = MODE_DIRECT_NONE_MV; // skipped |
mb->mode = MODE_DIRECT_NONE_MV; // skipped |
1959 |
} |
} |
1960 |
|
|
1961 |
|
/* update predictors for forward and backward vectors */ |
1962 |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_FORWARD) { |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_FORWARD) { |
1963 |
mb->pmvs[0].x = mb->mvs[0].x - forward.x; |
mb->pmvs[0].x = mb->mvs[0].x - forward.x; |
1964 |
mb->pmvs[0].y = mb->mvs[0].y - forward.y; |
mb->pmvs[0].y = mb->mvs[0].y - forward.y; |
1972 |
backward.x = mb->b_mvs[0].x; |
backward.x = mb->b_mvs[0].x; |
1973 |
backward.y = mb->b_mvs[0].y; |
backward.y = mb->b_mvs[0].y; |
1974 |
} |
} |
1975 |
|
|
1976 |
// DPRINTF("%05i : [%i %i] M=%i CBP=%i MVS=%i,%i forward=%i,%i", pEnc->m_framenum, x, y, mb->mode, mb->cbp, mb->mvs[0].x, mb->mvs[0].y, forward.x, forward.y); |
// DPRINTF("%05i : [%i %i] M=%i CBP=%i MVS=%i,%i forward=%i,%i", pEnc->m_framenum, x, y, mb->mode, mb->cbp, mb->mvs[0].x, mb->mvs[0].y, forward.x, forward.y); |
1977 |
|
|
1978 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
2000 |
#endif |
#endif |
2001 |
} |
} |
2002 |
#endif |
#endif |
2003 |
|
|
2004 |
|
|
2005 |
|
/* in case internal output is needed somewhere... */ |
2006 |
|
/* { |
2007 |
|
FILE *filehandle; |
2008 |
|
filehandle=fopen("last-b.pgm","wb"); |
2009 |
|
if (filehandle) |
2010 |
|
{ |
2011 |
|
fprintf(filehandle,"P5\n\n"); // |
2012 |
|
fprintf(filehandle,"%d %d 255\n",pEnc->mbParam.edged_width,pEnc->mbParam.edged_height); |
2013 |
|
fwrite(frame->image.y,pEnc->mbParam.edged_width,pEnc->mbParam.edged_height,filehandle); |
2014 |
|
fclose(filehandle); |
2015 |
|
} |
2016 |
|
} |
2017 |
|
*/ |