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FFmpeg/libavcodec/motion_est.c

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/*
* Motion estimation
* Copyright (c) 2000,2001 Fabrice Bellard.
* Copyright (c) 2002 Michael Niedermayer
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* new Motion Estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
*/
#include <stdlib.h>
#include <stdio.h>
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
//#undef NDEBUG
//#include <assert.h>
#define SQ(a) ((a)*(a))
#define P_LAST P[0]
#define P_LEFT P[1]
#define P_TOP P[2]
#define P_TOPRIGHT P[3]
#define P_MEDIAN P[4]
#define P_LAST_LEFT P[5]
#define P_LAST_RIGHT P[6]
#define P_LAST_TOP P[7]
#define P_LAST_BOTTOM P[8]
#define P_MV1 P[9]
static inline int sad_hpel_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int dmin,
int xmin, int ymin, int xmax, int ymax,
int pred_x, int pred_y, Picture *picture,
int n, int size, uint16_t * const mv_penalty);
static inline int update_map_generation(MpegEncContext * s)
{
s->me.map_generation+= 1<<(ME_MAP_MV_BITS*2);
if(s->me.map_generation==0){
s->me.map_generation= 1<<(ME_MAP_MV_BITS*2);
memset(s->me.map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
}
return s->me.map_generation;
}
/* SIMPLE */
#define RENAME(a) simple_ ## a
#define CMP(d, x, y, size)\
d = cmp(s, src_y, (ref_y) + (x) + (y)*(stride), stride);
#define CMP_HPEL(d, dx, dy, x, y, size)\
{\
const int dxy= (dx) + 2*(dy);\
hpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride, (16>>size));\
d = cmp_sub(s, s->me.scratchpad, src_y, stride);\
}
#define CMP_QPEL(d, dx, dy, x, y, size)\
{\
const int dxy= (dx) + 4*(dy);\
qpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride);\
d = cmp_sub(s, s->me.scratchpad, src_y, stride);\
}
#include "motion_est_template.c"
#undef RENAME
#undef CMP
#undef CMP_HPEL
#undef CMP_QPEL
#undef INIT
/* SIMPLE CHROMA */
#define RENAME(a) simple_chroma_ ## a
#define CMP(d, x, y, size)\
d = cmp(s, src_y, (ref_y) + (x) + (y)*(stride), stride);\
if(chroma_cmp){\
int dxy= ((x)&1) + 2*((y)&1);\
int c= ((x)>>1) + ((y)>>1)*uvstride;\
\
chroma_hpel_put[0][dxy](s->me.scratchpad, ref_u + c, uvstride, 8);\
d += chroma_cmp(s, s->me.scratchpad, src_u, uvstride);\
chroma_hpel_put[0][dxy](s->me.scratchpad, ref_v + c, uvstride, 8);\
d += chroma_cmp(s, s->me.scratchpad, src_v, uvstride);\
}
#define CMP_HPEL(d, dx, dy, x, y, size)\
{\
const int dxy= (dx) + 2*(dy);\
hpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride, (16>>size));\
d = cmp_sub(s, s->me.scratchpad, src_y, stride);\
if(chroma_cmp_sub){\
int cxy= (dxy) | ((x)&1) | (2*((y)&1));\
int c= ((x)>>1) + ((y)>>1)*uvstride;\
chroma_hpel_put[0][cxy](s->me.scratchpad, ref_u + c, uvstride, 8);\
d += chroma_cmp_sub(s, s->me.scratchpad, src_u, uvstride);\
chroma_hpel_put[0][cxy](s->me.scratchpad, ref_v + c, uvstride, 8);\
d += chroma_cmp_sub(s, s->me.scratchpad, src_v, uvstride);\
}\
}
#define CMP_QPEL(d, dx, dy, x, y, size)\
{\
const int dxy= (dx) + 4*(dy);\
qpel_put[0][dxy](s->me.scratchpad, (ref_y) + (x) + (y)*(stride), stride);\
d = cmp_sub(s, s->me.scratchpad, src_y, stride);\
if(chroma_cmp_sub){\
int cxy, c;\
int cx= (4*(x) + (dx))/2;\
int cy= (4*(y) + (dy))/2;\
cx= (cx>>1)|(cx&1);\
cy= (cy>>1)|(cy&1);\
cxy= (cx&1) + 2*(cy&1);\
c= ((cx)>>1) + ((cy)>>1)*uvstride;\
chroma_hpel_put[0][cxy](s->me.scratchpad, ref_u + c, uvstride, 8);\
d += chroma_cmp_sub(s, s->me.scratchpad, src_u, uvstride);\
chroma_hpel_put[0][cxy](s->me.scratchpad, ref_v + c, uvstride, 8);\
d += chroma_cmp_sub(s, s->me.scratchpad, src_v, uvstride);\
}\
}
#include "motion_est_template.c"
#undef RENAME
#undef CMP
#undef CMP_HPEL
#undef CMP_QPEL
#undef INIT
/* SIMPLE DIRECT HPEL */
#define RENAME(a) simple_direct_hpel_ ## a
//FIXME precalc divisions stuff
#define CMP_DIRECT(d, dx, dy, x, y, size, cmp_func)\
if((x) >= xmin && 2*(x) + (dx) <= 2*xmax && (y) >= ymin && 2*(y) + (dy) <= 2*ymax){\
const int hx= 2*(x) + (dx);\
const int hy= 2*(y) + (dy);\
if(s->mv_type==MV_TYPE_8X8){\
int i;\
for(i=0; i<4; i++){\
int fx = s->me.direct_basis_mv[i][0] + hx;\
int fy = s->me.direct_basis_mv[i][1] + hy;\
int bx = hx ? fx - s->me.co_located_mv[i][0] : s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + (i &1)*16;\
int by = hy ? fy - s->me.co_located_mv[i][1] : s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + (i>>1)*16;\
int fxy= (fx&1) + 2*(fy&1);\
int bxy= (bx&1) + 2*(by&1);\
\
uint8_t *dst= s->me.scratchpad + 8*(i&1) + 8*stride*(i>>1);\
hpel_put[1][fxy](dst, (ref_y ) + (fx>>1) + (fy>>1)*(stride), stride, 8);\
hpel_avg[1][bxy](dst, (ref2_y) + (bx>>1) + (by>>1)*(stride), stride, 8);\
}\
}else{\
int fx = s->me.direct_basis_mv[0][0] + hx;\
int fy = s->me.direct_basis_mv[0][1] + hy;\
int bx = hx ? fx - s->me.co_located_mv[0][0] : s->me.co_located_mv[0][0]*(time_pb - time_pp)/time_pp;\
int by = hy ? fy - s->me.co_located_mv[0][1] : s->me.co_located_mv[0][1]*(time_pb - time_pp)/time_pp;\
int fxy= (fx&1) + 2*(fy&1);\
int bxy= (bx&1) + 2*(by&1);\
\
hpel_put[0][fxy](s->me.scratchpad, (ref_y ) + (fx>>1) + (fy>>1)*(stride), stride, 16);\
hpel_avg[0][bxy](s->me.scratchpad, (ref2_y) + (bx>>1) + (by>>1)*(stride), stride, 16);\
}\
d = cmp_func(s, s->me.scratchpad, src_y, stride);\
}else\
d= 256*256*256*32;
#define CMP_HPEL(d, dx, dy, x, y, size)\
CMP_DIRECT(d, dx, dy, x, y, size, cmp_sub)
#define CMP(d, x, y, size)\
CMP_DIRECT(d, 0, 0, x, y, size, cmp)
#include "motion_est_template.c"
#undef RENAME
#undef CMP
#undef CMP_HPEL
#undef CMP_QPEL
#undef INIT
#undef CMP_DIRECT
/* SIMPLE DIRECT QPEL */
#define RENAME(a) simple_direct_qpel_ ## a
#define CMP_DIRECT(d, dx, dy, x, y, size, cmp_func)\
if((x) >= xmin && 4*(x) + (dx) <= 4*xmax && (y) >= ymin && 4*(y) + (dy) <= 4*ymax){\
const int qx= 4*(x) + (dx);\
const int qy= 4*(y) + (dy);\
if(s->mv_type==MV_TYPE_8X8){\
int i;\
for(i=0; i<4; i++){\
int fx = s->me.direct_basis_mv[i][0] + qx;\
int fy = s->me.direct_basis_mv[i][1] + qy;\
int bx = qx ? fx - s->me.co_located_mv[i][0] : s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + (i &1)*16;\
int by = qy ? fy - s->me.co_located_mv[i][1] : s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + (i>>1)*16;\
int fxy= (fx&3) + 4*(fy&3);\
int bxy= (bx&3) + 4*(by&3);\
\
uint8_t *dst= s->me.scratchpad + 8*(i&1) + 8*stride*(i>>1);\
qpel_put[1][fxy](dst, (ref_y ) + (fx>>2) + (fy>>2)*(stride), stride);\
qpel_avg[1][bxy](dst, (ref2_y) + (bx>>2) + (by>>2)*(stride), stride);\
}\
}else{\
int fx = s->me.direct_basis_mv[0][0] + qx;\
int fy = s->me.direct_basis_mv[0][1] + qy;\
int bx = qx ? fx - s->me.co_located_mv[0][0] : s->me.co_located_mv[0][0]*(time_pb - time_pp)/time_pp;\
int by = qy ? fy - s->me.co_located_mv[0][1] : s->me.co_located_mv[0][1]*(time_pb - time_pp)/time_pp;\
int fxy= (fx&3) + 4*(fy&3);\
int bxy= (bx&3) + 4*(by&3);\
\
qpel_put[0][fxy](s->me.scratchpad, (ref_y ) + (fx>>2) + (fy>>2)*(stride), stride);\
qpel_avg[0][bxy](s->me.scratchpad, (ref2_y) + (bx>>2) + (by>>2)*(stride), stride);\
}\
d = cmp_func(s, s->me.scratchpad, src_y, stride);\
}else\
d= 256*256*256*32;
#define CMP_QPEL(d, dx, dy, x, y, size)\
CMP_DIRECT(d, dx, dy, x, y, size, cmp_sub)
#define CMP(d, x, y, size)\
CMP_DIRECT(d, 0, 0, x, y, size, cmp)
#include "motion_est_template.c"
#undef RENAME
#undef CMP
#undef CMP_HPEL
#undef CMP_QPEL
#undef INIT
#undef CMP__DIRECT
static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride){
return 0;
}
static void set_cmp(MpegEncContext *s, me_cmp_func *cmp, int type){
DSPContext* c= &s->dsp;
int i;
memset(cmp, 0, sizeof(void*)*11);
switch(type&0xFF){
case FF_CMP_SAD:
cmp[0]= c->sad[0];
cmp[1]= c->sad[1];
break;
case FF_CMP_SATD:
cmp[0]= c->hadamard8_diff[0];
cmp[1]= c->hadamard8_diff[1];
break;
case FF_CMP_SSE:
cmp[0]= c->sse[0];
cmp[1]= c->sse[1];
break;
case FF_CMP_DCT:
cmp[0]= c->dct_sad[0];
cmp[1]= c->dct_sad[1];
break;
case FF_CMP_PSNR:
cmp[0]= c->quant_psnr[0];
cmp[1]= c->quant_psnr[1];
break;
case FF_CMP_ZERO:
for(i=0; i<7; i++){
cmp[i]= zero_cmp;
}
break;
default:
fprintf(stderr,"internal error in cmp function selection\n");
}
};
static inline int get_penalty_factor(MpegEncContext *s, int type){
switch(type){
default:
case FF_CMP_SAD:
return s->qscale;
case FF_CMP_SSE:
// return s->qscale*8;
case FF_CMP_DCT:
case FF_CMP_SATD:
return s->qscale*8;
}
}
void ff_init_me(MpegEncContext *s){
set_cmp(s, s->dsp.me_cmp, s->avctx->me_cmp);
set_cmp(s, s->dsp.me_sub_cmp, s->avctx->me_sub_cmp);
set_cmp(s, s->dsp.mb_cmp, s->avctx->mb_cmp);
if(s->flags&CODEC_FLAG_QPEL){
if(s->avctx->me_sub_cmp&FF_CMP_CHROMA)
s->me.sub_motion_search= simple_chroma_qpel_motion_search;
else
s->me.sub_motion_search= simple_qpel_motion_search;
}else{
if(s->avctx->me_sub_cmp&FF_CMP_CHROMA)
s->me.sub_motion_search= simple_chroma_hpel_motion_search;
else if(s->avctx->me_sub_cmp == FF_CMP_SAD && s->avctx->me_cmp == FF_CMP_SAD)
s->me.sub_motion_search= sad_hpel_motion_search;
else
s->me.sub_motion_search= simple_hpel_motion_search;
}
if(s->avctx->me_cmp&FF_CMP_CHROMA){
s->me.motion_search[0]= simple_chroma_epzs_motion_search;
s->me.motion_search[1]= simple_chroma_epzs_motion_search4;
}else{
s->me.motion_search[0]= simple_epzs_motion_search;
s->me.motion_search[1]= simple_epzs_motion_search4;
}
}
static int pix_dev(UINT8 * pix, int line_size, int mean)
{
int s, i, j;
s = 0;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {
s += ABS(pix[0]-mean);
s += ABS(pix[1]-mean);
s += ABS(pix[2]-mean);
s += ABS(pix[3]-mean);
s += ABS(pix[4]-mean);
s += ABS(pix[5]-mean);
s += ABS(pix[6]-mean);
s += ABS(pix[7]-mean);
pix += 8;
}
pix += line_size - 16;
}
return s;
}
static inline void no_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr)
{
*mx_ptr = 16 * s->mb_x;
*my_ptr = 16 * s->mb_y;
}
static int full_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int range,
int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
{
int x1, y1, x2, y2, xx, yy, x, y;
int mx, my, dmin, d;
UINT8 *pix;
xx = 16 * s->mb_x;
yy = 16 * s->mb_y;
x1 = xx - range + 1; /* we loose one pixel to avoid boundary pb with half pixel pred */
if (x1 < xmin)
x1 = xmin;
x2 = xx + range - 1;
if (x2 > xmax)
x2 = xmax;
y1 = yy - range + 1;
if (y1 < ymin)
y1 = ymin;
y2 = yy + range - 1;
if (y2 > ymax)
y2 = ymax;
pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
dmin = 0x7fffffff;
mx = 0;
my = 0;
for (y = y1; y <= y2; y++) {
for (x = x1; x <= x2; x++) {
d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x,
s->linesize);
if (d < dmin ||
(d == dmin &&
(abs(x - xx) + abs(y - yy)) <
(abs(mx - xx) + abs(my - yy)))) {
dmin = d;
mx = x;
my = y;
}
}
}
*mx_ptr = mx;
*my_ptr = my;
#if 0
if (*mx_ptr < -(2 * range) || *mx_ptr >= (2 * range) ||
*my_ptr < -(2 * range) || *my_ptr >= (2 * range)) {
fprintf(stderr, "error %d %d\n", *mx_ptr, *my_ptr);
}
#endif
return dmin;
}
static int log_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int range,
int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
{
int x1, y1, x2, y2, xx, yy, x, y;
int mx, my, dmin, d;
UINT8 *pix;
xx = s->mb_x << 4;
yy = s->mb_y << 4;
/* Left limit */
x1 = xx - range;
if (x1 < xmin)
x1 = xmin;
/* Right limit */
x2 = xx + range;
if (x2 > xmax)
x2 = xmax;
/* Upper limit */
y1 = yy - range;
if (y1 < ymin)
y1 = ymin;
/* Lower limit */
y2 = yy + range;
if (y2 > ymax)
y2 = ymax;
pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
dmin = 0x7fffffff;
mx = 0;
my = 0;
do {
for (y = y1; y <= y2; y += range) {
for (x = x1; x <= x2; x += range) {
d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);
if (d < dmin || (d == dmin && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {
dmin = d;
mx = x;
my = y;
}
}
}
range = range >> 1;
x1 = mx - range;
if (x1 < xmin)
x1 = xmin;
x2 = mx + range;
if (x2 > xmax)
x2 = xmax;
y1 = my - range;
if (y1 < ymin)
y1 = ymin;
y2 = my + range;
if (y2 > ymax)
y2 = ymax;
} while (range >= 1);
#ifdef DEBUG
fprintf(stderr, "log - MX: %d\tMY: %d\n", mx, my);
#endif
*mx_ptr = mx;
*my_ptr = my;
return dmin;
}
static int phods_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int range,
int xmin, int ymin, int xmax, int ymax, uint8_t *ref_picture)
{
int x1, y1, x2, y2, xx, yy, x, y, lastx, d;
int mx, my, dminx, dminy;
UINT8 *pix;
xx = s->mb_x << 4;
yy = s->mb_y << 4;
/* Left limit */
x1 = xx - range;
if (x1 < xmin)
x1 = xmin;
/* Right limit */
x2 = xx + range;
if (x2 > xmax)
x2 = xmax;
/* Upper limit */
y1 = yy - range;
if (y1 < ymin)
y1 = ymin;
/* Lower limit */
y2 = yy + range;
if (y2 > ymax)
y2 = ymax;
pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
mx = 0;
my = 0;
x = xx;
y = yy;
do {
dminx = 0x7fffffff;
dminy = 0x7fffffff;
lastx = x;
for (x = x1; x <= x2; x += range) {
d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);
if (d < dminx || (d == dminx && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {
dminx = d;
mx = x;
}
}
x = lastx;
for (y = y1; y <= y2; y += range) {
d = s->dsp.pix_abs16x16(pix, ref_picture + (y * s->linesize) + x, s->linesize);
if (d < dminy || (d == dminy && (abs(x - xx) + abs(y - yy)) < (abs(mx - xx) + abs(my - yy)))) {
dminy = d;
my = y;
}
}
range = range >> 1;
x = mx;
y = my;
x1 = mx - range;
if (x1 < xmin)
x1 = xmin;
x2 = mx + range;
if (x2 > xmax)
x2 = xmax;
y1 = my - range;
if (y1 < ymin)
y1 = ymin;
y2 = my + range;
if (y2 > ymax)
y2 = ymax;
} while (range >= 1);
#ifdef DEBUG
fprintf(stderr, "phods - MX: %d\tMY: %d\n", mx, my);
#endif
/* half pixel search */
*mx_ptr = mx;
*my_ptr = my;
return dminy;
}
#define Z_THRESHOLD 256
#define CHECK_SAD_HALF_MV(suffix, x, y) \
{\
d= pix_abs_ ## suffix(pix, ptr+((x)>>1), s->linesize);\
d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
COPY3_IF_LT(dminh, d, dx, x, dy, y)\
}
static inline int sad_hpel_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int dmin,
int xmin, int ymin, int xmax, int ymax,
int pred_x, int pred_y, Picture *picture,
int n, int size, uint16_t * const mv_penalty)
{
uint8_t *ref_picture= picture->data[0];
uint32_t *score_map= s->me.score_map;
const int penalty_factor= s->me.sub_penalty_factor;
int mx, my, xx, yy, dminh;
UINT8 *pix, *ptr;
op_pixels_abs_func pix_abs_x2;
op_pixels_abs_func pix_abs_y2;
op_pixels_abs_func pix_abs_xy2;
if(size==0){
pix_abs_x2 = s->dsp.pix_abs16x16_x2;
pix_abs_y2 = s->dsp.pix_abs16x16_y2;
pix_abs_xy2= s->dsp.pix_abs16x16_xy2;
}else{
pix_abs_x2 = s->dsp.pix_abs8x8_x2;
pix_abs_y2 = s->dsp.pix_abs8x8_y2;
pix_abs_xy2= s->dsp.pix_abs8x8_xy2;
}
if(s->me.skip){
// printf("S");
*mx_ptr = 0;
*my_ptr = 0;
return dmin;
}
// printf("N");
xx = 16 * s->mb_x + 8*(n&1);
yy = 16 * s->mb_y + 8*(n>>1);
pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
mx = *mx_ptr;
my = *my_ptr;
ptr = ref_picture + ((yy + my) * s->linesize) + (xx + mx);
dminh = dmin;
if (mx > xmin && mx < xmax &&
my > ymin && my < ymax) {
int dx=0, dy=0;
int d, pen_x, pen_y;
const int index= (my<<ME_MAP_SHIFT) + mx;
const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)];
const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)];
const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
mx<<=1;
my<<=1;
pen_x= pred_x + mx;
pen_y= pred_y + my;
ptr-= s->linesize;
if(t<=b){
CHECK_SAD_HALF_MV(y2 , 0, -1)
if(l<=r){
CHECK_SAD_HALF_MV(xy2, -1, -1)
if(t+r<=b+l){
CHECK_SAD_HALF_MV(xy2, +1, -1)
ptr+= s->linesize;
}else{
ptr+= s->linesize;
CHECK_SAD_HALF_MV(xy2, -1, +1)
}
CHECK_SAD_HALF_MV(x2 , -1, 0)
}else{
CHECK_SAD_HALF_MV(xy2, +1, -1)
if(t+l<=b+r){
CHECK_SAD_HALF_MV(xy2, -1, -1)
ptr+= s->linesize;
}else{
ptr+= s->linesize;
CHECK_SAD_HALF_MV(xy2, +1, +1)
}
CHECK_SAD_HALF_MV(x2 , +1, 0)
}
}else{
if(l<=r){
if(t+l<=b+r){
CHECK_SAD_HALF_MV(xy2, -1, -1)
ptr+= s->linesize;
}else{
ptr+= s->linesize;
CHECK_SAD_HALF_MV(xy2, +1, +1)
}
CHECK_SAD_HALF_MV(x2 , -1, 0)
CHECK_SAD_HALF_MV(xy2, -1, +1)
}else{
if(t+r<=b+l){
CHECK_SAD_HALF_MV(xy2, +1, -1)
ptr+= s->linesize;
}else{
ptr+= s->linesize;
CHECK_SAD_HALF_MV(xy2, -1, +1)
}
CHECK_SAD_HALF_MV(x2 , +1, 0)
CHECK_SAD_HALF_MV(xy2, +1, +1)
}
CHECK_SAD_HALF_MV(y2 , 0, +1)
}
mx+=dx;
my+=dy;
}else{
mx<<=1;
my<<=1;
}
*mx_ptr = mx;
*my_ptr = my;
return dminh;
}
static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
{
const int xy= s->mb_x + 1 + (s->mb_y + 1)*(s->mb_width + 2);
s->p_mv_table[xy][0] = mx;
s->p_mv_table[xy][1] = my;
/* has allready been set to the 4 MV if 4MV is done */
if(mv4){
int mot_xy= s->block_index[0];
s->motion_val[mot_xy ][0]= mx;
s->motion_val[mot_xy ][1]= my;
s->motion_val[mot_xy+1][0]= mx;
s->motion_val[mot_xy+1][1]= my;
mot_xy += s->block_wrap[0];
s->motion_val[mot_xy ][0]= mx;
s->motion_val[mot_xy ][1]= my;
s->motion_val[mot_xy+1][0]= mx;
s->motion_val[mot_xy+1][1]= my;
}
}
static inline void get_limits(MpegEncContext *s, int *range, int *xmin, int *ymin, int *xmax, int *ymax, int f_code)
{
*range = 8 * (1 << (f_code - 1));
/* XXX: temporary kludge to avoid overflow for msmpeg4 */
if (s->out_format == FMT_H263 && !s->h263_msmpeg4)
*range *= 2;
if (s->unrestricted_mv) {
*xmin = -16;
*ymin = -16;
if (s->h263_plus)
*range *= 2;
if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4){
*xmax = s->mb_width*16;
*ymax = s->mb_height*16;
}else {
/* XXX: dunno if this is correct but ffmpeg4 decoder wont like it otherwise
(cuz the drawn edge isnt large enough))*/
*xmax = s->width;
*ymax = s->height;
}
} else {
*xmin = 0;
*ymin = 0;
*xmax = s->mb_width*16 - 16;
*ymax = s->mb_height*16 - 16;
}
}
static inline int mv4_search(MpegEncContext *s, int xmin, int ymin, int xmax, int ymax, int mx, int my, int shift)
{
int block;
int P[10][2];
uint8_t *ref_picture= s->last_picture.data[0];
int dmin_sum=0;
uint16_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;
for(block=0; block<4; block++){
int mx4, my4;
int pred_x4, pred_y4;
int dmin4;
static const int off[4]= {2, 1, 1, -1};
const int mot_stride = s->block_wrap[0];
const int mot_xy = s->block_index[block];
// const int block_x= (block&1);
// const int block_y= (block>>1);
#if 1 // this saves us a bit of cliping work and shouldnt affect compression in a negative way
const int rel_xmin4= xmin;
const int rel_xmax4= xmax;
const int rel_ymin4= ymin;
const int rel_ymax4= ymax;
#else
const int rel_xmin4= xmin - block_x*8;
const int rel_xmax4= xmax - block_x*8 + 8;
const int rel_ymin4= ymin - block_y*8;
const int rel_ymax4= ymax - block_y*8 + 8;
#endif
P_LAST[0] = s->motion_val[mot_xy ][0];
P_LAST[1] = s->motion_val[mot_xy ][1];
P_LEFT[0] = s->motion_val[mot_xy - 1][0];
P_LEFT[1] = s->motion_val[mot_xy - 1][1];
P_LAST_RIGHT[0] = s->motion_val[mot_xy + 1][0];
P_LAST_RIGHT[1] = s->motion_val[mot_xy + 1][1];
P_LAST_BOTTOM[0]= s->motion_val[mot_xy + 1*mot_stride][0];
P_LAST_BOTTOM[1]= s->motion_val[mot_xy + 1*mot_stride][1];
if(P_LEFT[0] > (rel_xmax4<<shift)) P_LEFT[0] = (rel_xmax4<<shift);
if(P_LAST_RIGHT[0] < (rel_xmin4<<shift)) P_LAST_RIGHT[0] = (rel_xmin4<<shift);
if(P_LAST_BOTTOM[1]< (rel_ymin4<<shift)) P_LAST_BOTTOM[1]= (rel_ymin4<<shift);
/* special case for first line */
if ((s->mb_y == 0 || s->first_slice_line) && block<2) {
pred_x4= P_LEFT[0];
pred_y4= P_LEFT[1];
} else {
P_TOP[0] = s->motion_val[mot_xy - mot_stride ][0];
P_TOP[1] = s->motion_val[mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = s->motion_val[mot_xy - mot_stride + off[block]][0];
P_TOPRIGHT[1] = s->motion_val[mot_xy - mot_stride + off[block]][1];
if(P_TOP[1] > (rel_ymax4<<shift)) P_TOP[1] = (rel_ymax4<<shift);
if(P_TOPRIGHT[0] < (rel_xmin4<<shift)) P_TOPRIGHT[0]= (rel_xmin4<<shift);
if(P_TOPRIGHT[0] > (rel_xmax4<<shift)) P_TOPRIGHT[0]= (rel_xmax4<<shift);
if(P_TOPRIGHT[1] > (rel_ymax4<<shift)) P_TOPRIGHT[1]= (rel_ymax4<<shift);
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
if(s->out_format == FMT_H263){
pred_x4 = P_MEDIAN[0];
pred_y4 = P_MEDIAN[1];
}else { /* mpeg1 at least */
pred_x4= P_LEFT[0];
pred_y4= P_LEFT[1];
}
}
P_MV1[0]= mx;
P_MV1[1]= my;
dmin4 = s->me.motion_search[1](s, block, &mx4, &my4, P, pred_x4, pred_y4, rel_xmin4, rel_ymin4, rel_xmax4, rel_ymax4,
&s->last_picture, mv_penalty);
dmin4= s->me.sub_motion_search(s, &mx4, &my4, dmin4, rel_xmin4, rel_ymin4, rel_xmax4, rel_ymax4,
pred_x4, pred_y4, &s->last_picture, block, 1, mv_penalty);
s->motion_val[ s->block_index[block] ][0]= mx4;
s->motion_val[ s->block_index[block] ][1]= my4;
dmin_sum+= dmin4;
}
return dmin_sum;
}
void ff_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
UINT8 *pix, *ppix;
int sum, varc, vard, mx, my, range, dmin, xx, yy;
int xmin, ymin, xmax, ymax;
int rel_xmin, rel_ymin, rel_xmax, rel_ymax;
int pred_x=0, pred_y=0;
int P[10][2];
const int shift= 1+s->quarter_sample;
int mb_type=0;
uint8_t *ref_picture= s->last_picture.data[0];
Picture * const pic= &s->current_picture;
uint16_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;
assert(s->quarter_sample==0 || s->quarter_sample==1);
s->me.penalty_factor = get_penalty_factor(s, s->avctx->me_cmp);
s->me.sub_penalty_factor= get_penalty_factor(s, s->avctx->me_sub_cmp);
get_limits(s, &range, &xmin, &ymin, &xmax, &ymax, s->f_code);
rel_xmin= xmin - mb_x*16;
rel_xmax= xmax - mb_x*16;
rel_ymin= ymin - mb_y*16;
rel_ymax= ymax - mb_y*16;
s->me.skip=0;
switch(s->me_method) {
case ME_ZERO:
default:
no_motion_search(s, &mx, &my);
mx-= mb_x*16;
my-= mb_y*16;
dmin = 0;
break;
case ME_FULL:
dmin = full_motion_search(s, &mx, &my, range, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_LOG:
dmin = log_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_PHODS:
dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_X1:
case ME_EPZS:
{
const int mot_stride = s->block_wrap[0];
const int mot_xy = s->block_index[0];
P_LAST[0] = s->motion_val[mot_xy ][0];
P_LAST[1] = s->motion_val[mot_xy ][1];
P_LEFT[0] = s->motion_val[mot_xy - 1][0];
P_LEFT[1] = s->motion_val[mot_xy - 1][1];
P_LAST_RIGHT[0] = s->motion_val[mot_xy + 2][0];
P_LAST_RIGHT[1] = s->motion_val[mot_xy + 2][1];
P_LAST_BOTTOM[0]= s->motion_val[mot_xy + 2*mot_stride][0];
P_LAST_BOTTOM[1]= s->motion_val[mot_xy + 2*mot_stride][1];
if(P_LEFT[0] > (rel_xmax<<shift)) P_LEFT[0] = (rel_xmax<<shift);
if(P_LAST_RIGHT[0] < (rel_xmin<<shift)) P_LAST_RIGHT[0] = (rel_xmin<<shift);
if(P_LAST_BOTTOM[1]< (rel_ymin<<shift)) P_LAST_BOTTOM[1]= (rel_ymin<<shift);
/* special case for first line */
if ((mb_y == 0 || s->first_slice_line)) {
pred_x= P_LEFT[0];
pred_y= P_LEFT[1];
} else {
P_TOP[0] = s->motion_val[mot_xy - mot_stride ][0];
P_TOP[1] = s->motion_val[mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = s->motion_val[mot_xy - mot_stride + 2][0];
P_TOPRIGHT[1] = s->motion_val[mot_xy - mot_stride + 2][1];
if(P_TOP[1] > (rel_ymax<<shift)) P_TOP[1] = (rel_ymax<<shift);
if(P_TOPRIGHT[0] < (rel_xmin<<shift)) P_TOPRIGHT[0]= (rel_xmin<<shift);
if(P_TOPRIGHT[1] > (rel_ymax<<shift)) P_TOPRIGHT[1]= (rel_ymax<<shift);
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
if(s->out_format == FMT_H263){
pred_x = P_MEDIAN[0];
pred_y = P_MEDIAN[1];
}else { /* mpeg1 at least */
pred_x= P_LEFT[0];
pred_y= P_LEFT[1];
}
}
}
dmin = s->me.motion_search[0](s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
&s->last_picture, mv_penalty);
break;
}
/* intra / predictive decision */
xx = mb_x * 16;
yy = mb_y * 16;
pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
/* At this point (mx,my) are full-pell and the relative displacement */
ppix = ref_picture + ((yy+my) * s->linesize) + (xx+mx);
sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
vard = (s->dsp.sse[0](NULL, pix, ppix, s->linesize)+128)>>8;
//printf("%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);
pic->mb_var [s->mb_width * mb_y + mb_x] = varc;
pic->mc_mb_var[s->mb_width * mb_y + mb_x] = vard;
pic->mb_mean [s->mb_width * mb_y + mb_x] = (sum+128)>>8;
pic->mb_var_sum += varc;
pic->mc_mb_var_sum += vard;
//printf("E%d %d %d %X %X %X\n", s->mb_width, mb_x, mb_y,(int)s, (int)s->mb_var, (int)s->mc_mb_var); fflush(stdout);
#if 0
printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",
varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);
#endif
if(s->flags&CODEC_FLAG_HQ){
if (vard <= 64 || vard < varc)
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
else
s->scene_change_score+= s->qscale;
if (vard*2 + 200 > varc)
mb_type|= MB_TYPE_INTRA;
if (varc*2 + 200 > vard){
mb_type|= MB_TYPE_INTER;
s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);
}else{
mx <<=shift;
my <<=shift;
}
if((s->flags&CODEC_FLAG_4MV)
&& !s->me.skip && varc>50 && vard>10){
mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);
mb_type|=MB_TYPE_INTER4V;
set_p_mv_tables(s, mx, my, 0);
}else
set_p_mv_tables(s, mx, my, 1);
}else{
if (vard <= 64 || vard < varc) {
// if (sadP <= 32 || sadP < sadI + 500) {
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
mb_type|= MB_TYPE_INTER;
if (s->me_method != ME_ZERO) {
dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);
if((s->flags&CODEC_FLAG_4MV)
&& !s->me.skip && varc>50 && vard>10){
int dmin4= mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);
if(dmin4 + 128 <dmin)
mb_type= MB_TYPE_INTER4V;
}
set_p_mv_tables(s, mx, my, mb_type!=MB_TYPE_INTER4V);
} else {
mx <<=shift;
my <<=shift;
}
#if 0
if (vard < 10) {
skip++;
fprintf(stderr,"\nEarly skip: %d vard: %2d varc: %5d dmin: %d",
skip, vard, varc, dmin);
}
#endif
}else{
s->scene_change_score+= 20;
mb_type|= MB_TYPE_INTRA;
mx = 0;
my = 0;
}
}
s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
}
int ff_estimate_motion_b(MpegEncContext * s,
int mb_x, int mb_y, int16_t (*mv_table)[2], Picture *picture, int f_code)
{
int mx, my, range, dmin;
int xmin, ymin, xmax, ymax;
int rel_xmin, rel_ymin, rel_xmax, rel_ymax;
int pred_x=0, pred_y=0;
int P[10][2];
const int shift= 1+s->quarter_sample;
const int mot_stride = s->mb_width + 2;
const int mot_xy = (mb_y + 1)*mot_stride + mb_x + 1;
uint8_t * const ref_picture= picture->data[0];
uint16_t * const mv_penalty= s->me.mv_penalty[f_code] + MAX_MV;
s->me.penalty_factor = get_penalty_factor(s, s->avctx->me_cmp);
s->me.sub_penalty_factor= get_penalty_factor(s, s->avctx->me_sub_cmp);
get_limits(s, &range, &xmin, &ymin, &xmax, &ymax, f_code);
rel_xmin= xmin - mb_x*16;
rel_xmax= xmax - mb_x*16;
rel_ymin= ymin - mb_y*16;
rel_ymax= ymax - mb_y*16;
switch(s->me_method) {
case ME_ZERO:
default:
no_motion_search(s, &mx, &my);
dmin = 0;
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_FULL:
dmin = full_motion_search(s, &mx, &my, range, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_LOG:
dmin = log_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_PHODS:
dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax, ref_picture);
mx-= mb_x*16;
my-= mb_y*16;
break;
case ME_X1:
case ME_EPZS:
{
P_LAST[0] = mv_table[mot_xy ][0];
P_LAST[1] = mv_table[mot_xy ][1];
P_LEFT[0] = mv_table[mot_xy - 1][0];
P_LEFT[1] = mv_table[mot_xy - 1][1];
P_LAST_RIGHT[0] = mv_table[mot_xy + 1][0];
P_LAST_RIGHT[1] = mv_table[mot_xy + 1][1];
P_LAST_BOTTOM[0] = mv_table[mot_xy + mot_stride][0];
P_LAST_BOTTOM[1] = mv_table[mot_xy + mot_stride][1];
if(P_LEFT[0] > (rel_xmax<<shift)) P_LEFT[0] = (rel_xmax<<shift);
if(P_LAST_RIGHT[0] < (rel_xmin<<shift)) P_LAST_RIGHT[0] = (rel_xmin<<shift);
if(P_LAST_BOTTOM[1]< (rel_ymin<<shift)) P_LAST_BOTTOM[1]= (rel_ymin<<shift);
/* special case for first line */
if ((mb_y == 0 || s->first_slice_line)) {
} else {
P_TOP[0] = mv_table[mot_xy - mot_stride ][0];
P_TOP[1] = mv_table[mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1 ][0];
P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1 ][1];
if(P_TOP[1] > (rel_ymax<<shift)) P_TOP[1]= (rel_ymax<<shift);
if(P_TOPRIGHT[0] < (rel_xmin<<shift)) P_TOPRIGHT[0]= (rel_xmin<<shift);
if(P_TOPRIGHT[1] > (rel_ymax<<shift)) P_TOPRIGHT[1]= (rel_ymax<<shift);
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
}
pred_x= P_LEFT[0];
pred_y= P_LEFT[1];
}
dmin = s->me.motion_search[0](s, 0, &mx, &my, P, pred_x, pred_y, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
picture, mv_penalty);
break;
}
dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
pred_x, pred_y, picture, 0, 0, mv_penalty);
//printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my);
// s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
mv_table[mot_xy][0]= mx;
mv_table[mot_xy][1]= my;
return dmin;
}
static inline int check_bidir_mv(MpegEncContext * s,
int mb_x, int mb_y,
int motion_fx, int motion_fy,
int motion_bx, int motion_by,
int pred_fx, int pred_fy,
int pred_bx, int pred_by)
{
//FIXME optimize?
//FIXME move into template?
//FIXME better f_code prediction (max mv & distance)
UINT16 *mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame
uint8_t *dest_y = s->me.scratchpad;
uint8_t *ptr;
int dxy;
int src_x, src_y;
int fbmin;
if(s->quarter_sample){
dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
src_x = mb_x * 16 + (motion_fx >> 2);
src_y = mb_y * 16 + (motion_fy >> 2);
assert(src_x >=-16 && src_x<=s->width);
assert(src_y >=-16 && src_y<=s->height);
ptr = s->last_picture.data[0] + (src_y * s->linesize) + src_x;
s->dsp.put_qpel_pixels_tab[0][dxy](dest_y , ptr , s->linesize);
dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
src_x = mb_x * 16 + (motion_bx >> 2);
src_y = mb_y * 16 + (motion_by >> 2);
assert(src_x >=-16 && src_x<=s->width);
assert(src_y >=-16 && src_y<=s->height);
ptr = s->next_picture.data[0] + (src_y * s->linesize) + src_x;
s->dsp.avg_qpel_pixels_tab[0][dxy](dest_y , ptr , s->linesize);
}else{
dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
src_x = mb_x * 16 + (motion_fx >> 1);
src_y = mb_y * 16 + (motion_fy >> 1);
assert(src_x >=-16 && src_x<=s->width);
assert(src_y >=-16 && src_y<=s->height);
ptr = s->last_picture.data[0] + (src_y * s->linesize) + src_x;
s->dsp.put_pixels_tab[0][dxy](dest_y , ptr , s->linesize, 16);
dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
src_x = mb_x * 16 + (motion_bx >> 1);
src_y = mb_y * 16 + (motion_by >> 1);
assert(src_x >=-16 && src_x<=s->width);
assert(src_y >=-16 && src_y<=s->height);
ptr = s->next_picture.data[0] + (src_y * s->linesize) + src_x;
s->dsp.avg_pixels_tab[0][dxy](dest_y , ptr , s->linesize, 16);
}
fbmin = (mv_penalty[motion_fx-pred_fx] + mv_penalty[motion_fy-pred_fy])*s->me.sub_penalty_factor
+(mv_penalty[motion_bx-pred_bx] + mv_penalty[motion_by-pred_by])*s->me.sub_penalty_factor;
+ s->dsp.me_sub_cmp[0](s, s->new_picture.data[0] + mb_x*16 + mb_y*16*s->linesize, dest_y, s->linesize);
return fbmin;
}
/* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
static inline int bidir_refine(MpegEncContext * s,
int mb_x, int mb_y)
{
const int mot_stride = s->mb_width + 2;
const int xy = (mb_y + 1)*mot_stride + mb_x + 1;
int fbmin;
int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
int pred_by= s->b_bidir_back_mv_table[xy-1][1];
int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
//FIXME do refinement and add flag
fbmin= check_bidir_mv(s, mb_x, mb_y,
motion_fx, motion_fy,
motion_bx, motion_by,
pred_fx, pred_fy,
pred_bx, pred_by);
return fbmin;
}
static inline int direct_search(MpegEncContext * s,
int mb_x, int mb_y)
{
int P[10][2];
const int mot_stride = s->mb_width + 2;
const int mot_xy = (mb_y + 1)*mot_stride + mb_x + 1;
const int shift= 1+s->quarter_sample;
int dmin, i;
const int time_pp= s->pp_time;
const int time_pb= s->pb_time;
int mx, my, xmin, xmax, ymin, ymax;
int16_t (*mv_table)[2]= s->b_direct_mv_table;
uint16_t * const mv_penalty= s->me.mv_penalty[1] + MAX_MV;
P_LAST[0] = mv_table[mot_xy ][0];
P_LAST[1] = mv_table[mot_xy ][1];
P_LEFT[0] = mv_table[mot_xy - 1][0];
P_LEFT[1] = mv_table[mot_xy - 1][1];
P_LAST_RIGHT[0] = mv_table[mot_xy + 1][0];
P_LAST_RIGHT[1] = mv_table[mot_xy + 1][1];
P_LAST_BOTTOM[0] = mv_table[mot_xy + mot_stride][0];
P_LAST_BOTTOM[1] = mv_table[mot_xy + mot_stride][1];
/*
if(P_LEFT[0] > (rel_xmax<<shift)) P_LEFT[0] = (rel_xmax<<shift);
if(P_LAST_RIGHT[0] < (rel_xmin<<shift)) P_LAST_RIGHT[0] = (rel_xmin<<shift);
if(P_LAST_BOTTOM[1]< (rel_ymin<<shift)) P_LAST_BOTTOM[1]= (rel_ymin<<shift);
*/
/* special case for first line */
if ((mb_y == 0 || s->first_slice_line)) {
} else {
P_TOP[0] = mv_table[mot_xy - mot_stride ][0];
P_TOP[1] = mv_table[mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1 ][0];
P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1 ][1];
P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
}
ymin= xmin=(-32)>>shift;
ymax= xmax= 31>>shift;
if(s->co_located_type_table[mb_x + mb_y*s->mb_width]==CO_LOCATED_TYPE_4MV){
s->mv_type= MV_TYPE_8X8;
}else{
s->mv_type= MV_TYPE_16X16;
}
for(i=0; i<4; i++){
int index= s->block_index[i];
int min, max;
s->me.co_located_mv[i][0]= s->motion_val[index][0];
s->me.co_located_mv[i][1]= s->motion_val[index][1];
s->me.direct_basis_mv[i][0]= s->me.co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
s->me.direct_basis_mv[i][1]= s->me.co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
// s->me.direct_basis_mv[1][i][0]= s->me.co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
// s->me.direct_basis_mv[1][i][1]= s->me.co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
max= FFMAX(s->me.direct_basis_mv[i][0], s->me.direct_basis_mv[i][0] - s->me.co_located_mv[i][0])>>shift;
min= FFMIN(s->me.direct_basis_mv[i][0], s->me.direct_basis_mv[i][0] - s->me.co_located_mv[i][0])>>shift;
max+= (2*mb_x + (i& 1))*8 - 1; // +-1 is for the simpler rounding
min+= (2*mb_x + (i& 1))*8 + 1;
if(max >= s->width) xmax= s->width - max - 1;
if(min < -16 ) xmin= - 32 - min;
max= FFMAX(s->me.direct_basis_mv[i][1], s->me.direct_basis_mv[i][1] - s->me.co_located_mv[i][1])>>shift;
min= FFMIN(s->me.direct_basis_mv[i][1], s->me.direct_basis_mv[i][1] - s->me.co_located_mv[i][1])>>shift;
max+= (2*mb_y + (i>>1))*8 - 1; // +-1 is for the simpler rounding
min+= (2*mb_y + (i>>1))*8 + 1;
if(max >= s->height) ymax= s->height - max - 1;
if(min < -16 ) ymin= - 32 - min;
if(s->mv_type == MV_TYPE_16X16) break;
}
assert(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){
s->b_direct_mv_table[mot_xy][0]= 0;
s->b_direct_mv_table[mot_xy][1]= 0;
return 256*256*256*64;
}
if(s->flags&CODEC_FLAG_QPEL){
dmin = simple_direct_qpel_epzs_motion_search(s, 0, &mx, &my, P, 0, 0, xmin, ymin, xmax, ymax,
&s->last_picture, mv_penalty);
dmin = simple_direct_qpel_qpel_motion_search(s, &mx, &my, dmin, xmin, ymin, xmax, ymax,
0, 0, &s->last_picture, 0, 0, mv_penalty);
}else{
dmin = simple_direct_hpel_epzs_motion_search(s, 0, &mx, &my, P, 0, 0, xmin, ymin, xmax, ymax,
&s->last_picture, mv_penalty);
dmin = simple_direct_hpel_hpel_motion_search(s, &mx, &my, dmin, xmin, ymin, xmax, ymax,
0, 0, &s->last_picture, 0, 0, mv_penalty);
}
s->b_direct_mv_table[mot_xy][0]= mx;
s->b_direct_mv_table[mot_xy][1]= my;
return dmin;
}
void ff_estimate_b_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
const int penalty_factor= s->me.penalty_factor;
int fmin, bmin, dmin, fbmin;
int type=0;
dmin= direct_search(s, mb_x, mb_y);
fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, &s->last_picture, s->f_code);
bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, &s->next_picture, s->b_code) - penalty_factor;
//printf(" %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
fbmin= bidir_refine(s, mb_x, mb_y);
{
int score= dmin;
type=MB_TYPE_DIRECT;
if(fmin<score){
score=fmin;
type= MB_TYPE_FORWARD;
}
if(bmin<score){
score=bmin;
type= MB_TYPE_BACKWARD;
}
if(fbmin<score){
score=fbmin;
type= MB_TYPE_BIDIR;
}
score= ((unsigned)(score*score + 128*256))>>16;
s->current_picture.mc_mb_var_sum += score;
s->current_picture.mc_mb_var[mb_y*s->mb_width + mb_x] = score; //FIXME use SSD
}
if(s->flags&CODEC_FLAG_HQ){
type= MB_TYPE_FORWARD | MB_TYPE_BACKWARD | MB_TYPE_BIDIR | MB_TYPE_DIRECT; //FIXME something smarter
if(dmin>256*256*16) type&= ~MB_TYPE_DIRECT; //dont try direct mode if its invalid for this MB
}
s->mb_type[mb_y*s->mb_width + mb_x]= type;
}
/* find best f_code for ME which do unlimited searches */
int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
{
if(s->me_method>=ME_EPZS){
int score[8];
int i, y;
UINT8 * fcode_tab= s->fcode_tab;
int best_fcode=-1;
int best_score=-10000000;
for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
for(y=0; y<s->mb_height; y++){
int x;
int xy= (y+1)* (s->mb_width+2) + 1;
i= y*s->mb_width;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[i] & type){
int fcode= FFMAX(fcode_tab[mv_table[xy][0] + MAX_MV],
fcode_tab[mv_table[xy][1] + MAX_MV]);
int j;
for(j=0; j<fcode && j<8; j++){
if(s->pict_type==B_TYPE || s->current_picture.mc_mb_var[i] < s->current_picture.mb_var[i])
score[j]-= 170;
}
}
i++;
xy++;
}
}
for(i=1; i<8; i++){
if(score[i] > best_score){
best_score= score[i];
best_fcode= i;
}
// printf("%d %d\n", i, score[i]);
}
// printf("fcode: %d type: %d\n", i, s->pict_type);
return best_fcode;
/* for(i=0; i<=MAX_FCODE; i++){
printf("%d ", mv_num[i]);
}
printf("\n");*/
}else{
return 1;
}
}
void ff_fix_long_p_mvs(MpegEncContext * s)
{
const int f_code= s->f_code;
int y;
UINT8 * fcode_tab= s->fcode_tab;
//int clip=0;
//int noclip=0;
/* clip / convert to intra 16x16 type MVs */
for(y=0; y<s->mb_height; y++){
int x;
int xy= (y+1)* (s->mb_width+2)+1;
int i= y*s->mb_width;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[i]&MB_TYPE_INTER){
if( fcode_tab[s->p_mv_table[xy][0] + MAX_MV] > f_code
|| fcode_tab[s->p_mv_table[xy][0] + MAX_MV] == 0
|| fcode_tab[s->p_mv_table[xy][1] + MAX_MV] > f_code
|| fcode_tab[s->p_mv_table[xy][1] + MAX_MV] == 0 ){
s->mb_type[i] &= ~MB_TYPE_INTER;
s->mb_type[i] |= MB_TYPE_INTRA;
s->p_mv_table[xy][0] = 0;
s->p_mv_table[xy][1] = 0;
//clip++;
}
//else
// noclip++;
}
xy++;
i++;
}
}
//printf("%d no:%d %d//\n", clip, noclip, f_code);
if(s->flags&CODEC_FLAG_4MV){
const int wrap= 2+ s->mb_width*2;
/* clip / convert to intra 8x8 type MVs */
for(y=0; y<s->mb_height; y++){
int xy= (y*2 + 1)*wrap + 1;
int i= y*s->mb_width;
int x;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[i]&MB_TYPE_INTER4V){
int block;
for(block=0; block<4; block++){
int off= (block& 1) + (block>>1)*wrap;
int mx= s->motion_val[ xy + off ][0];
int my= s->motion_val[ xy + off ][1];
if( fcode_tab[mx + MAX_MV] > f_code
|| fcode_tab[mx + MAX_MV] == 0
|| fcode_tab[my + MAX_MV] > f_code
|| fcode_tab[my + MAX_MV] == 0 ){
s->mb_type[i] &= ~MB_TYPE_INTER4V;
s->mb_type[i] |= MB_TYPE_INTRA;
}
}
}
xy+=2;
i++;
}
}
}
}
void ff_fix_long_b_mvs(MpegEncContext * s, int16_t (*mv_table)[2], int f_code, int type)
{
int y;
UINT8 * fcode_tab= s->fcode_tab;
/* clip / convert to intra 16x16 type MVs */
for(y=0; y<s->mb_height; y++){
int x;
int xy= (y+1)* (s->mb_width+2)+1;
int i= y*s->mb_width;
for(x=0; x<s->mb_width; x++){
if( fcode_tab[mv_table[xy][0] + MAX_MV] > f_code
|| fcode_tab[mv_table[xy][0] + MAX_MV] == 0){
if(mv_table[xy][0]>0) mv_table[xy][0]= (16<<f_code)-1;
else mv_table[xy][0]= -(16<<f_code);
}
if( fcode_tab[mv_table[xy][1] + MAX_MV] > f_code
|| fcode_tab[mv_table[xy][1] + MAX_MV] == 0){
if(mv_table[xy][1]>0) mv_table[xy][1]= (16<<f_code)-1;
else mv_table[xy][1]= -(16<<f_code);
}
xy++;
i++;
}
}
}