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 1.63 2002-07-22 18:03:47 chl Exp $ |
* $Id: encoder.c,v 1.67 2002-07-30 12:14:37 chl Exp $ |
43 |
* |
* |
44 |
****************************************************************************/ |
****************************************************************************/ |
45 |
|
|
46 |
|
|
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 |
#endif |
#endif |
429 |
|
|
430 |
pParam->handle = (void *) pEnc; |
pParam->handle = (void *) pEnc; |
1557 |
|
|
1558 |
|
|
1559 |
#define INTRA_THRESHOLD 0.5 |
#define INTRA_THRESHOLD 0.5 |
1560 |
|
#define BFRAME_SKIP_THRESHHOLD 16 |
1561 |
|
|
1562 |
static int |
static int |
1563 |
FrameCodeP(Encoder * pEnc, |
FrameCodeP(Encoder * pEnc, |
1572 |
DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); |
DECLARE_ALIGNED_MATRIX(qcoeff, 6, 64, int16_t, CACHE_LINE); |
1573 |
|
|
1574 |
int iLimit; |
int iLimit; |
1575 |
uint32_t x, y; |
int k; |
1576 |
|
int x, y; |
1577 |
int iSearchRange; |
int iSearchRange; |
1578 |
int bIntra; |
int bIntra; |
1579 |
|
|
1701 |
} |
} |
1702 |
|
|
1703 |
start_timer(); |
start_timer(); |
1704 |
|
|
1705 |
|
/* Finished processing the MB, now check if to CODE or SKIP */ |
1706 |
|
|
1707 |
|
if (pMB->cbp == 0 && pMB->mode == MODE_INTER && pMB->mvs[0].x == 0 && |
1708 |
|
pMB->mvs[0].y == 0) { |
1709 |
|
|
1710 |
|
/* This is a candidate for SKIPping, but check intermediate B-frames first */ |
1711 |
|
|
1712 |
|
#ifdef BFRAMES |
1713 |
|
int iSAD=BFRAME_SKIP_THRESHHOLD; |
1714 |
|
int bSkip=1; |
1715 |
|
|
1716 |
|
for (k=pEnc->bframenum_head; k< pEnc->bframenum_tail; k++) |
1717 |
|
{ |
1718 |
|
iSAD = sad16(pEnc->reference->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, |
1719 |
|
pEnc->bframes[k]->image.y + 16*y*pEnc->mbParam.edged_width + 16*x, |
1720 |
|
pEnc->mbParam.edged_width,BFRAME_SKIP_THRESHHOLD); |
1721 |
|
if (iSAD >= BFRAME_SKIP_THRESHHOLD) |
1722 |
|
{ bSkip = 0; |
1723 |
|
break; |
1724 |
|
} |
1725 |
|
} |
1726 |
|
if (!bSkip) |
1727 |
|
{ |
1728 |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
1729 |
|
pMB->cbp = 0x80; /* trick! so cbp!=0, but still nothing is written to bs */ |
1730 |
|
} |
1731 |
|
else |
1732 |
|
MBSkip(bs); |
1733 |
|
|
1734 |
|
|
1735 |
|
#else |
1736 |
|
MBSkip(bs); /* without B-frames, no precautions are needed */ |
1737 |
|
|
1738 |
|
#endif |
1739 |
|
|
1740 |
|
} else { |
1741 |
|
MBCoding(pEnc->current, pMB, qcoeff, bs, &pEnc->sStat); |
1742 |
|
} |
1743 |
|
|
1744 |
stop_coding_timer(); |
stop_coding_timer(); |
1745 |
} |
} |
1746 |
} |
} |
1777 |
#ifdef BFRAMES |
#ifdef BFRAMES |
1778 |
/* frame drop code */ |
/* frame drop code */ |
1779 |
// 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); |
1780 |
if (pEnc->sStat.kblks + pEnc->sStat.mblks <= |
if (pEnc->sStat.kblks + pEnc->sStat.mblks < |
1781 |
(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) |
1782 |
{ |
{ |
1783 |
pEnc->sStat.kblks = pEnc->sStat.mblks = 0; |
pEnc->sStat.kblks = pEnc->sStat.mblks = 0; |
1801 |
*pBits = BitstreamPos(bs) - *pBits; |
*pBits = BitstreamPos(bs) - *pBits; |
1802 |
|
|
1803 |
#ifdef BFRAMES |
#ifdef BFRAMES |
1804 |
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) % |
1805 |
pEnc->last_pframe = pEnc->mbParam.m_ticks; |
(int32_t)pEnc->mbParam.fbase; |
1806 |
|
pEnc->last_pframe = pEnc->current->ticks; |
1807 |
#endif |
#endif |
1808 |
|
|
1809 |
return 0; // inter |
return 0; // inter |
1862 |
|
|
1863 |
start_timer(); |
start_timer(); |
1864 |
MotionEstimationBVOP(&pEnc->mbParam, frame, |
MotionEstimationBVOP(&pEnc->mbParam, frame, |
1865 |
((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, |
1866 |
pEnc->time_pp, |
pEnc->time_pp, |
1867 |
pEnc->reference->mbs, f_ref, |
pEnc->reference->mbs, f_ref, |
1868 |
&pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, |
&pEnc->f_refh, &pEnc->f_refv, &pEnc->f_refhv, |
1927 |
qcoeff); |
qcoeff); |
1928 |
//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); |
1929 |
|
|
1930 |
|
if ( (mb->mode == MODE_DIRECT) && (mb->cbp == 0) |
1931 |
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) { |
|
1932 |
mb->mode = MODE_DIRECT_NONE_MV; // skipped |
mb->mode = MODE_DIRECT_NONE_MV; // skipped |
1933 |
} |
} |
1934 |
|
|
1935 |
|
/* update predictors for forward and backward vectors */ |
1936 |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_FORWARD) { |
if (mb->mode == MODE_INTERPOLATE || mb->mode == MODE_FORWARD) { |
1937 |
mb->pmvs[0].x = mb->mvs[0].x - forward.x; |
mb->pmvs[0].x = mb->mvs[0].x - forward.x; |
1938 |
mb->pmvs[0].y = mb->mvs[0].y - forward.y; |
mb->pmvs[0].y = mb->mvs[0].y - forward.y; |
1946 |
backward.x = mb->b_mvs[0].x; |
backward.x = mb->b_mvs[0].x; |
1947 |
backward.y = mb->b_mvs[0].y; |
backward.y = mb->b_mvs[0].y; |
1948 |
} |
} |
1949 |
|
|
1950 |
// 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); |
1951 |
|
|
1952 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1974 |
#endif |
#endif |
1975 |
} |
} |
1976 |
#endif |
#endif |
1977 |
|
|
1978 |
|
|
1979 |
|
/* in case internal output is needed somewhere... */ |
1980 |
|
/* { |
1981 |
|
FILE *filehandle; |
1982 |
|
filehandle=fopen("last-b.pgm","wb"); |
1983 |
|
if (filehandle) |
1984 |
|
{ |
1985 |
|
fprintf(filehandle,"P5\n\n"); // |
1986 |
|
fprintf(filehandle,"%d %d 255\n",pEnc->mbParam.edged_width,pEnc->mbParam.edged_height); |
1987 |
|
fwrite(frame->image.y,pEnc->mbParam.edged_width,pEnc->mbParam.edged_height,filehandle); |
1988 |
|
fclose(filehandle); |
1989 |
|
} |
1990 |
|
} |
1991 |
|
*/ |