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FFmpeg/libavcodec/motion_est.c

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/*
* Motion estimation
* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer
*
* new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of Libav.
*
* Libav 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 2.1 of the License, or (at your option) any later version.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Motion estimation.
*/
#include <stdlib.h>
#include <stdio.h>
#include <limits.h>
#include "avcodec.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#undef NDEBUG
#include <assert.h>
#define P_LEFT P[1]
#define P_TOP P[2]
#define P_TOPRIGHT P[3]
#define P_MEDIAN P[4]
#define P_MV1 P[9]
static int sad_hpel_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int dmin,
int src_index, int ref_index,
int size, int h);
static inline unsigned update_map_generation(MotionEstContext *c)
{
c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
if(c->map_generation==0){
c->map_generation= 1<<(ME_MAP_MV_BITS*2);
memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
}
return c->map_generation;
}
/* shape adaptive search stuff */
typedef struct Minima{
int height;
int x, y;
int checked;
}Minima;
static int minima_cmp(const void *a, const void *b){
const Minima *da = (const Minima *) a;
const Minima *db = (const Minima *) b;
return da->height - db->height;
}
#define FLAG_QPEL 1 //must be 1
#define FLAG_CHROMA 2
#define FLAG_DIRECT 4
static inline void init_ref(MotionEstContext *c, uint8_t *src[3], uint8_t *ref[3], uint8_t *ref2[3], int x, int y, int ref_index){
const int offset[3]= {
y*c-> stride + x,
((y*c->uvstride + x)>>1),
((y*c->uvstride + x)>>1),
};
int i;
for(i=0; i<3; i++){
c->src[0][i]= src [i] + offset[i];
c->ref[0][i]= ref [i] + offset[i];
}
if(ref_index){
for(i=0; i<3; i++){
c->ref[ref_index][i]= ref2[i] + offset[i];
}
}
}
static int get_flags(MotionEstContext *c, int direct, int chroma){
return ((c->avctx->flags&CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)
+ (direct ? FLAG_DIRECT : 0)
+ (chroma ? FLAG_CHROMA : 0);
}
static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){
MotionEstContext * const c= &s->me;
const int stride= c->stride;
const int hx= subx + (x<<(1+qpel));
const int hy= suby + (y<<(1+qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
int d;
//FIXME check chroma 4mv, (no crashes ...)
assert(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
const int time_pp= s->pp_time;
const int time_pb= s->pb_time;
const int mask= 2*qpel+1;
if(s->mv_type==MV_TYPE_8X8){
int i;
for(i=0; i<4; i++){
int fx = c->direct_basis_mv[i][0] + hx;
int fy = c->direct_basis_mv[i][1] + hy;
int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
if(qpel){
c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
}else{
c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
}
}
}else{
int fx = c->direct_basis_mv[0][0] + hx;
int fy = c->direct_basis_mv[0][1] + hy;
int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
if(qpel){
c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);
c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);
c->qpel_put[1][fxy](c->temp + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8*stride, stride);
c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);
c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);
c->qpel_avg[1][bxy](c->temp + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8*stride, stride);
c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
}else{
assert((fx>>1) + 16*s->mb_x >= -16);
assert((fy>>1) + 16*s->mb_y >= -16);
assert((fx>>1) + 16*s->mb_x <= s->width);
assert((fy>>1) + 16*s->mb_y <= s->height);
assert((bx>>1) + 16*s->mb_x >= -16);
assert((by>>1) + 16*s->mb_y >= -16);
assert((bx>>1) + 16*s->mb_x <= s->width);
assert((by>>1) + 16*s->mb_y <= s->height);
c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
}
}
d = cmp_func(s, c->temp, src[0], stride, 16);
}else
d= 256*256*256*32;
return d;
}
static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma){
MotionEstContext * const c= &s->me;
const int stride= c->stride;
const int uvstride= c->uvstride;
const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
const int hx= subx + (x<<(1+qpel));
const int hy= suby + (y<<(1+qpel));
uint8_t * const * const ref= c->ref[ref_index];
uint8_t * const * const src= c->src[src_index];
int d;
//FIXME check chroma 4mv, (no crashes ...)
int uvdxy; /* no, it might not be used uninitialized */
if(dxy){
if(qpel){
c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
if(chroma){
int cx= hx/2;
int cy= hy/2;
cx= (cx>>1)|(cx&1);
cy= (cy>>1)|(cy&1);
uvdxy= (cx&1) + 2*(cy&1);
//FIXME x/y wrong, but mpeg4 qpel is sick anyway, we should drop as much of it as possible in favor for h264
}
}else{
c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
if(chroma)
uvdxy= dxy | (x&1) | (2*(y&1));
}
d = cmp_func(s, c->temp, src[0], stride, h);
}else{
d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
if(chroma)
uvdxy= (x&1) + 2*(y&1);
}
if(chroma){
uint8_t * const uvtemp= c->temp + 16*stride;
c->hpel_put[size+1][uvdxy](uvtemp , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
d += chroma_cmp_func(s, uvtemp , src[1], uvstride, h>>1);
d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
}
return d;
}
static int cmp_simple(MpegEncContext *s, const int x, const int y,
int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func){
return cmp_inline(s,x,y,0,0,0,16,ref_index,src_index, cmp_func, chroma_cmp_func, 0, 0);
}
static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
if(flags&FLAG_DIRECT){
return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
}else{
return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
}
}
static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
if(flags&FLAG_DIRECT){
return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
}else{
return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL, flags&FLAG_CHROMA);
}
}
/** @brief compares a block (either a full macroblock or a partition thereof)
against a proposed motion-compensated prediction of that block
*/
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
if(av_builtin_constant_p(flags) && av_builtin_constant_p(h) && av_builtin_constant_p(size)
&& av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
&& flags==0 && h==16 && size==0 && subx==0 && suby==0){
return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);
}else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
&& subx==0 && suby==0){
return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);
}else{
return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);
}
}
static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
if(flags&FLAG_DIRECT){
return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0);
}else{
return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
}
}
static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
const int size, const int h, int ref_index, int src_index,
me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
if(flags&FLAG_DIRECT){
return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1);
}else{
return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1, flags&FLAG_CHROMA);
}
}
#include "motion_est_template.c"
static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride, int h){
return 0;
}
static void zero_hpel(uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h){
}
int ff_init_me(MpegEncContext *s){
MotionEstContext * const c= &s->me;
int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);
int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -ME_MAP_SIZE){
av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
return -1;
}
if (s->me_method != ME_ZERO &&
s->me_method != ME_EPZS &&
s->me_method != ME_X1) {
av_log(s->avctx, AV_LOG_ERROR, "me_method is only allowed to be set to zero and epzs; for hex,umh,full and others see dia_size\n");
return -1;
}
c->avctx= s->avctx;
if(cache_size < 2*dia_size && !c->stride){
av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
}
ff_set_cmp(&s->dsp, s->dsp.me_pre_cmp, c->avctx->me_pre_cmp);
ff_set_cmp(&s->dsp, s->dsp.me_cmp, c->avctx->me_cmp);
ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, c->avctx->me_sub_cmp);
ff_set_cmp(&s->dsp, s->dsp.mb_cmp, c->avctx->mb_cmp);
c->flags = get_flags(c, 0, c->avctx->me_cmp &FF_CMP_CHROMA);
c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);
c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp &FF_CMP_CHROMA);
/*FIXME s->no_rounding b_type*/
if(s->flags&CODEC_FLAG_QPEL){
c->sub_motion_search= qpel_motion_search;
c->qpel_avg= s->dsp.avg_qpel_pixels_tab;
if(s->no_rounding) c->qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;
else c->qpel_put= s->dsp.put_qpel_pixels_tab;
}else{
if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)
c->sub_motion_search= hpel_motion_search;
else if( c->avctx->me_sub_cmp == FF_CMP_SAD
&& c->avctx-> me_cmp == FF_CMP_SAD
&& c->avctx-> mb_cmp == FF_CMP_SAD)
c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
else
c->sub_motion_search= hpel_motion_search;
}
c->hpel_avg = s->hdsp.avg_pixels_tab;
if (s->no_rounding)
c->hpel_put = s->hdsp.put_no_rnd_pixels_tab;
else
c->hpel_put = s->hdsp.put_pixels_tab;
if(s->linesize){
c->stride = s->linesize;
c->uvstride= s->uvlinesize;
}else{
c->stride = 16*s->mb_width + 32;
c->uvstride= 8*s->mb_width + 16;
}
/* 8x8 fullpel search would need a 4x4 chroma compare, which we do
* not have yet, and even if we had, the motion estimation code
* does not expect it. */
if((c->avctx->me_cmp&FF_CMP_CHROMA)/* && !s->dsp.me_cmp[2]*/){
s->dsp.me_cmp[2]= zero_cmp;
}
if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){
s->dsp.me_sub_cmp[2]= zero_cmp;
}
c->hpel_put[2][0]= c->hpel_put[2][1]=
c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
if(s->codec_id == AV_CODEC_ID_H261){
c->sub_motion_search= no_sub_motion_search;
}
return 0;
}
#define CHECK_SAD_HALF_MV(suffix, x, y) \
{\
d= s->dsp.pix_abs[size][(x?1:0)+(y?2:0)](NULL, pix, ptr+((x)>>1), stride, h);\
d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
COPY3_IF_LT(dminh, d, dx, x, dy, y)\
}
static int sad_hpel_motion_search(MpegEncContext * s,
int *mx_ptr, int *my_ptr, int dmin,
int src_index, int ref_index,
int size, int h)
{
MotionEstContext * const c= &s->me;
const int penalty_factor= c->sub_penalty_factor;
int mx, my, dminh;
uint8_t *pix, *ptr;
int stride= c->stride;
const int flags= c->sub_flags;
LOAD_COMMON
assert(flags == 0);
if(c->skip){
*mx_ptr = 0;
*my_ptr = 0;
return dmin;
}
pix = c->src[src_index][0];
mx = *mx_ptr;
my = *my_ptr;
ptr = c->ref[ref_index][0] + (my * stride) + 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-= stride;
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+= stride;
}else{
ptr+= stride;
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+= stride;
}else{
ptr+= stride;
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+= stride;
}else{
ptr+= stride;
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+= stride;
}else{
ptr+= stride;
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 + s->mb_y*s->mb_stride;
s->p_mv_table[xy][0] = mx;
s->p_mv_table[xy][1] = my;
/* has already been set to the 4 MV if 4MV is done */
if(mv4){
int mot_xy= s->block_index[0];
s->current_picture.motion_val[0][mot_xy ][0] = mx;
s->current_picture.motion_val[0][mot_xy ][1] = my;
s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
s->current_picture.motion_val[0][mot_xy + 1][1] = my;
mot_xy += s->b8_stride;
s->current_picture.motion_val[0][mot_xy ][0] = mx;
s->current_picture.motion_val[0][mot_xy ][1] = my;
s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
s->current_picture.motion_val[0][mot_xy + 1][1] = my;
}
}
/**
* get fullpel ME search limits.
*/
static inline void get_limits(MpegEncContext *s, int x, int y)
{
MotionEstContext * const c= &s->me;
int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
/*
if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
else c->range= 16;
*/
if (s->unrestricted_mv) {
c->xmin = - x - 16;
c->ymin = - y - 16;
c->xmax = - x + s->mb_width *16;
c->ymax = - y + s->mb_height*16;
} else if (s->out_format == FMT_H261){
// Search range of H261 is different from other codec standards
c->xmin = (x > 15) ? - 15 : 0;
c->ymin = (y > 15) ? - 15 : 0;
c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
} else {
c->xmin = - x;
c->ymin = - y;
c->xmax = - x + s->mb_width *16 - 16;
c->ymax = - y + s->mb_height*16 - 16;
}
if(range){
c->xmin = FFMAX(c->xmin,-range);
c->xmax = FFMIN(c->xmax, range);
c->ymin = FFMAX(c->ymin,-range);
c->ymax = FFMIN(c->ymax, range);
}
}
static inline void init_mv4_ref(MotionEstContext *c){
const int stride= c->stride;
c->ref[1][0] = c->ref[0][0] + 8;
c->ref[2][0] = c->ref[0][0] + 8*stride;
c->ref[3][0] = c->ref[2][0] + 8;
c->src[1][0] = c->src[0][0] + 8;
c->src[2][0] = c->src[0][0] + 8*stride;
c->src[3][0] = c->src[2][0] + 8;
}
static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
{
MotionEstContext * const c= &s->me;
const int size= 1;
const int h=8;
int block;
int P[10][2];
int dmin_sum=0, mx4_sum=0, my4_sum=0;
int same=1;
const int stride= c->stride;
uint8_t *mv_penalty= c->current_mv_penalty;
init_mv4_ref(c);
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->b8_stride;
const int mot_xy = s->block_index[block];
P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
/* special case for first line */
if (s->first_slice_line && block<2) {
c->pred_x= pred_x4= P_LEFT[0];
c->pred_y= pred_y4= P_LEFT[1];
} else {
P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->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]);
c->pred_x= pred_x4 = P_MEDIAN[0];
c->pred_y= pred_y4 = P_MEDIAN[1];
}
P_MV1[0]= mx;
P_MV1[1]= my;
dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);
dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
int dxy;
const int offset= ((block&1) + (block>>1)*stride)*8;
uint8_t *dest_y = c->scratchpad + offset;
if(s->quarter_sample){
uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
dxy = ((my4 & 3) << 2) | (mx4 & 3);
if(s->no_rounding)
s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y , ref , stride);
else
s->dsp.put_qpel_pixels_tab [1][dxy](dest_y , ref , stride);
}else{
uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
dxy = ((my4 & 1) << 1) | (mx4 & 1);
if(s->no_rounding)
s->hdsp.put_no_rnd_pixels_tab[1][dxy](dest_y , ref , stride, h);
else
s->hdsp.put_pixels_tab [1][dxy](dest_y , ref , stride, h);
}
dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
}else
dmin_sum+= dmin4;
if(s->quarter_sample){
mx4_sum+= mx4/2;
my4_sum+= my4/2;
}else{
mx4_sum+= mx4;
my4_sum+= my4;
}
s->current_picture.motion_val[0][s->block_index[block]][0] = mx4;
s->current_picture.motion_val[0][s->block_index[block]][1] = my4;
if(mx4 != mx || my4 != my) same=0;
}
if(same)
return INT_MAX;
if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
dmin_sum += s->dsp.mb_cmp[0](s, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*16*stride, c->scratchpad, stride, 16);
}
if(c->avctx->mb_cmp&FF_CMP_CHROMA){
int dxy;
int mx, my;
int offset;
mx= ff_h263_round_chroma(mx4_sum);
my= ff_h263_round_chroma(my4_sum);
dxy = ((my & 1) << 1) | (mx & 1);
offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;
if(s->no_rounding){
s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad , s->last_picture.f.data[1] + offset, s->uvlinesize, 8);
s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad + 8, s->last_picture.f.data[2] + offset, s->uvlinesize, 8);
}else{
s->hdsp.put_pixels_tab [1][dxy](c->scratchpad , s->last_picture.f.data[1] + offset, s->uvlinesize, 8);
s->hdsp.put_pixels_tab [1][dxy](c->scratchpad + 8, s->last_picture.f.data[2] + offset, s->uvlinesize, 8);
}
dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.f.data[1] + s->mb_x*8 + s->mb_y*8*s->uvlinesize, c->scratchpad , s->uvlinesize, 8);
dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.f.data[2] + s->mb_x*8 + s->mb_y*8*s->uvlinesize, c->scratchpad+8, s->uvlinesize, 8);
}
c->pred_x= mx;
c->pred_y= my;
switch(c->avctx->mb_cmp&0xFF){
/*case FF_CMP_SSE:
return dmin_sum+ 32*s->qscale*s->qscale;*/
case FF_CMP_RD:
return dmin_sum;
default:
return dmin_sum+ 11*c->mb_penalty_factor;
}
}
static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
MotionEstContext * const c= &s->me;
c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
c->src[1][0] = c->src[0][0] + s->linesize;
if(c->flags & FLAG_CHROMA){
c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
c->src[1][1] = c->src[0][1] + s->uvlinesize;
c->src[1][2] = c->src[0][2] + s->uvlinesize;
}
}
static int interlaced_search(MpegEncContext *s, int ref_index,
int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
{
MotionEstContext * const c= &s->me;
const int size=0;
const int h=8;
int block;
int P[10][2];
uint8_t * const mv_penalty= c->current_mv_penalty;
int same=1;
const int stride= 2*s->linesize;
int dmin_sum= 0;
const int mot_stride= s->mb_stride;
const int xy= s->mb_x + s->mb_y*mot_stride;
c->ymin>>=1;
c->ymax>>=1;
c->stride<<=1;
c->uvstride<<=1;
init_interlaced_ref(s, ref_index);
for(block=0; block<2; block++){
int field_select;
int best_dmin= INT_MAX;
int best_field= -1;
for(field_select=0; field_select<2; field_select++){
int dmin, mx_i, my_i;
int16_t (*mv_table)[2]= mv_tables[block][field_select];
if(user_field_select){
assert(field_select==0 || field_select==1);
assert(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);
if(field_select_tables[block][xy] != field_select)
continue;
}
P_LEFT[0] = mv_table[xy - 1][0];
P_LEFT[1] = mv_table[xy - 1][1];
if(P_LEFT[0] > (c->xmax<<1)) P_LEFT[0] = (c->xmax<<1);
c->pred_x= P_LEFT[0];
c->pred_y= P_LEFT[1];
if(!s->first_slice_line){
P_TOP[0] = mv_table[xy - mot_stride][0];
P_TOP[1] = mv_table[xy - mot_stride][1];
P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
if(P_TOP[1] > (c->ymax<<1)) P_TOP[1] = (c->ymax<<1);
if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<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]);
}
P_MV1[0]= mx; //FIXME not correct if block != field_select
P_MV1[1]= my / 2;
dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);
dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
mv_table[xy][0]= mx_i;
mv_table[xy][1]= my_i;
if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
int dxy;
//FIXME chroma ME
uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
dxy = ((my_i & 1) << 1) | (mx_i & 1);
if(s->no_rounding){
s->hdsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref , stride, h);
}else{
s->hdsp.put_pixels_tab [size][dxy](c->scratchpad, ref , stride, h);
}
dmin= s->dsp.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
}else
dmin+= c->mb_penalty_factor; //field_select bits
dmin += field_select != block; //slightly prefer same field
if(dmin < best_dmin){
best_dmin= dmin;
best_field= field_select;
}
}
{
int16_t (*mv_table)[2]= mv_tables[block][best_field];
if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
if(mv_table[xy][1]&1) same=0;
if(mv_table[xy][1]*2 != my) same=0;
if(best_field != block) same=0;
}
field_select_tables[block][xy]= best_field;
dmin_sum += best_dmin;
}
c->ymin<<=1;
c->ymax<<=1;
c->stride>>=1;
c->uvstride>>=1;
if(same)
return INT_MAX;
switch(c->avctx->mb_cmp&0xFF){
/*case FF_CMP_SSE:
return dmin_sum+ 32*s->qscale*s->qscale;*/
case FF_CMP_RD:
return dmin_sum;
default:
return dmin_sum+ 11*c->mb_penalty_factor;
}
}
static inline int get_penalty_factor(int lambda, int lambda2, int type){
switch(type&0xFF){
default:
case FF_CMP_SAD:
return lambda>>FF_LAMBDA_SHIFT;
case FF_CMP_DCT:
return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
case FF_CMP_SATD:
case FF_CMP_DCT264:
return (2*lambda)>>FF_LAMBDA_SHIFT;
case FF_CMP_RD:
case FF_CMP_PSNR:
case FF_CMP_SSE:
case FF_CMP_NSSE:
return lambda2>>FF_LAMBDA_SHIFT;
case FF_CMP_BIT:
return 1;
}
}
void ff_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
MotionEstContext * const c= &s->me;
uint8_t *pix, *ppix;
int sum, mx, my, dmin;
int varc; ///< the variance of the block (sum of squared (p[y][x]-average))
int vard; ///< sum of squared differences with the estimated motion vector
int P[10][2];
const int shift= 1+s->quarter_sample;
int mb_type=0;
Picture * const pic= &s->current_picture;
init_ref(c, s->new_picture.f.data, s->last_picture.f.data, NULL, 16*mb_x, 16*mb_y, 0);
assert(s->quarter_sample==0 || s->quarter_sample==1);
assert(s->linesize == c->stride);
assert(s->uvlinesize == c->uvstride);
c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
get_limits(s, 16*mb_x, 16*mb_y);
c->skip=0;
/* intra / predictive decision */
pix = c->src[0][0];
sum = s->dsp.pix_sum(pix, s->linesize);
varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500;
pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
c->mb_var_sum_temp += (varc+128)>>8;
switch(s->me_method) {
case ME_ZERO:
default:
mx = 0;
my = 0;
dmin = 0;
break;
case ME_X1:
case ME_EPZS:
{
const int mot_stride = s->b8_stride;
const int mot_xy = s->block_index[0];
P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
if(P_LEFT[0] > (c->xmax<<shift)) P_LEFT[0] = (c->xmax<<shift);
if(!s->first_slice_line) {
P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1] = (c->ymax<<shift);
if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->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){
c->pred_x = P_MEDIAN[0];
c->pred_y = P_MEDIAN[1];
}else { /* mpeg1 at least */
c->pred_x= P_LEFT[0];
c->pred_y= P_LEFT[1];
}
}else{
c->pred_x= P_LEFT[0];
c->pred_y= P_LEFT[1];
}
}
dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
break;
}
/* At this point (mx,my) are full-pell and the relative displacement */
ppix = c->ref[0][0] + (my * s->linesize) + mx;
vard = s->dsp.sse[0](NULL, pix, ppix, s->linesize, 16);
pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
c->mc_mb_var_sum_temp += (vard+128)>>8;
if(mb_type){
int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
if(mb_type == CANDIDATE_MB_TYPE_INTER){
c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
set_p_mv_tables(s, mx, my, 1);
}else{
mx <<=shift;
my <<=shift;
}
if(mb_type == CANDIDATE_MB_TYPE_INTER4V){
h263_mv4_search(s, mx, my, shift);
set_p_mv_tables(s, mx, my, 0);
}
if(mb_type == CANDIDATE_MB_TYPE_INTER_I){
interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 1);
}
}else if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
if (vard*2 + 200*256 > varc)
mb_type|= CANDIDATE_MB_TYPE_INTRA;
if (varc*2 + 200*256 > vard || s->qscale > 24){
// if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
mb_type|= CANDIDATE_MB_TYPE_INTER;
c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
if(s->flags&CODEC_FLAG_MV0)
if(mx || my)
mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
}else{
mx <<=shift;
my <<=shift;
}
if((s->flags&CODEC_FLAG_4MV)
&& !c->skip && varc>50<<8 && vard>10<<8){
if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
mb_type|=CANDIDATE_MB_TYPE_INTER4V;
set_p_mv_tables(s, mx, my, 0);
}else
set_p_mv_tables(s, mx, my, 1);
if((s->flags&CODEC_FLAG_INTERLACED_ME)
&& !c->skip){ //FIXME varc/d checks
if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
mb_type |= CANDIDATE_MB_TYPE_INTER_I;
}
}else{
int intra_score, i;
mb_type= CANDIDATE_MB_TYPE_INTER;
dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
if((s->flags&CODEC_FLAG_4MV)
&& !c->skip && varc>50<<8 && vard>10<<8){
int dmin4= h263_mv4_search(s, mx, my, shift);
if(dmin4 < dmin){
mb_type= CANDIDATE_MB_TYPE_INTER4V;
dmin=dmin4;
}
}
if((s->flags&CODEC_FLAG_INTERLACED_ME)
&& !c->skip){ //FIXME varc/d checks
int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
if(dmin_i < dmin){
mb_type = CANDIDATE_MB_TYPE_INTER_I;
dmin= dmin_i;
}
}
set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
/* get intra luma score */
if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
intra_score= varc - 500;
}else{
unsigned mean = (sum+128)>>8;
mean*= 0x01010101;
for(i=0; i<16; i++){
*(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;
*(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;
*(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;
*(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;
}
intra_score= s->dsp.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
}
intra_score += c->mb_penalty_factor*16;
if(intra_score < dmin){
mb_type= CANDIDATE_MB_TYPE_INTRA;
s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
}else
s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = 0;
{
int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
}
}
s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
}
int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
MotionEstContext * const c= &s->me;
int mx, my, dmin;
int P[10][2];
const int shift= 1+s->quarter_sample;
const int xy= mb_x + mb_y*s->mb_stride;
init_ref(c, s->new_picture.f.data, s->last_picture.f.data, NULL, 16*mb_x, 16*mb_y, 0);
assert(s->quarter_sample==0 || s->quarter_sample==1);
c->pre_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);
c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
get_limits(s, 16*mb_x, 16*mb_y);
c->skip=0;
P_LEFT[0] = s->p_mv_table[xy + 1][0];
P_LEFT[1] = s->p_mv_table[xy + 1][1];
if(P_LEFT[0] < (c->xmin<<shift)) P_LEFT[0] = (c->xmin<<shift);
/* special case for first line */
if (s->first_slice_line) {
c->pred_x= P_LEFT[0];
c->pred_y= P_LEFT[1];
P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
} else {
P_TOP[0] = s->p_mv_table[xy + s->mb_stride ][0];
P_TOP[1] = s->p_mv_table[xy + s->mb_stride ][1];
P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
if(P_TOP[1] < (c->ymin<<shift)) P_TOP[1] = (c->ymin<<shift);
if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<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]);
c->pred_x = P_MEDIAN[0];
c->pred_y = P_MEDIAN[1];
}
dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
s->p_mv_table[xy][0] = mx<<shift;
s->p_mv_table[xy][1] = my<<shift;
return dmin;
}
static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,
int16_t (*mv_table)[2], int ref_index, int f_code)
{
MotionEstContext * const c= &s->me;
int mx, my, dmin;
int P[10][2];
const int shift= 1+s->quarter_sample;
const int mot_stride = s->mb_stride;
const int mot_xy = mb_y*mot_stride + mb_x;
uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;
int mv_scale;
c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
c->current_mv_penalty= mv_penalty;
get_limits(s, 16*mb_x, 16*mb_y);
switch(s->me_method) {
case ME_ZERO:
default:
mx = 0;
my = 0;
dmin = 0;
break;
case ME_X1:
case ME_EPZS:
P_LEFT[0] = mv_table[mot_xy - 1][0];
P_LEFT[1] = mv_table[mot_xy - 1][1];
if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);
/* special case for first line */
if (!s->first_slice_line) {
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] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);
if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);
if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->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]);
}
c->pred_x = P_LEFT[0];
c->pred_y = P_LEFT[1];
if(mv_table == s->b_forw_mv_table){
mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);
}else{
mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);
}
dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
break;
}
dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
// 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 motion_fx, int motion_fy,
int motion_bx, int motion_by,
int pred_fx, int pred_fy,
int pred_bx, int pred_by,
int size, int h)
{
//FIXME optimize?
//FIXME better f_code prediction (max mv & distance)
//FIXME pointers
MotionEstContext * const c= &s->me;
uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame
uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_MV; // f_code of the prev frame
int stride= c->stride;
uint8_t *dest_y = c->scratchpad;
uint8_t *ptr;
int dxy;
int src_x, src_y;
int fbmin;
uint8_t **src_data= c->src[0];
uint8_t **ref_data= c->ref[0];
uint8_t **ref2_data= c->ref[2];
if(s->quarter_sample){
dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
src_x = motion_fx >> 2;
src_y = motion_fy >> 2;
ptr = ref_data[0] + (src_y * stride) + src_x;
s->dsp.put_qpel_pixels_tab[0][dxy](dest_y , ptr , stride);
dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
src_x = motion_bx >> 2;
src_y = motion_by >> 2;
ptr = ref2_data[0] + (src_y * stride) + src_x;
s->dsp.avg_qpel_pixels_tab[size][dxy](dest_y , ptr , stride);
}else{
dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
src_x = motion_fx >> 1;
src_y = motion_fy >> 1;
ptr = ref_data[0] + (src_y * stride) + src_x;
s->hdsp.put_pixels_tab[size][dxy](dest_y , ptr , stride, h);
dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
src_x = motion_bx >> 1;
src_y = motion_by >> 1;
ptr = ref2_data[0] + (src_y * stride) + src_x;
s->hdsp.avg_pixels_tab[size][dxy](dest_y , ptr , stride, h);
}
fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
+(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
+ s->dsp.mb_cmp[size](s, src_data[0], dest_y, stride, h); //FIXME new_pic
if(c->avctx->mb_cmp&FF_CMP_CHROMA){
}
//FIXME CHROMA !!!
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)
{
MotionEstContext * const c= &s->me;
const int mot_stride = s->mb_stride;
const int xy = mb_y *mot_stride + mb_x;
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];
const int flags= c->sub_flags;
const int qpel= flags&FLAG_QPEL;
const int shift= 1+qpel;
const int xmin= c->xmin<<shift;
const int ymin= c->ymin<<shift;
const int xmax= c->xmax<<shift;
const int ymax= c->ymax<<shift;
#define HASH(fx,fy,bx,by) ((fx)+17*(fy)+63*(bx)+117*(by))
#define HASH8(fx,fy,bx,by) ((uint8_t)HASH(fx,fy,bx,by))
int hashidx= HASH(motion_fx,motion_fy, motion_bx, motion_by);
uint8_t map[256] = { 0 };
map[hashidx&255] = 1;
fbmin= check_bidir_mv(s, motion_fx, motion_fy,
motion_bx, motion_by,
pred_fx, pred_fy,
pred_bx, pred_by,
0, 16);
if(s->avctx->bidir_refine){
int end;
static const uint8_t limittab[5]={0,8,32,64,80};
const int limit= limittab[s->avctx->bidir_refine];
static const int8_t vect[][4]={
{ 0, 0, 0, 1}, { 0, 0, 0,-1}, { 0, 0, 1, 0}, { 0, 0,-1, 0}, { 0, 1, 0, 0}, { 0,-1, 0, 0}, { 1, 0, 0, 0}, {-1, 0, 0, 0},
{ 0, 0, 1, 1}, { 0, 0,-1,-1}, { 0, 1, 1, 0}, { 0,-1,-1, 0}, { 1, 1, 0, 0}, {-1,-1, 0, 0}, { 1, 0, 0, 1}, {-1, 0, 0,-1},
{ 0, 1, 0, 1}, { 0,-1, 0,-1}, { 1, 0, 1, 0}, {-1, 0,-1, 0},
{ 0, 0,-1, 1}, { 0, 0, 1,-1}, { 0,-1, 1, 0}, { 0, 1,-1, 0}, {-1, 1, 0, 0}, { 1,-1, 0, 0}, { 1, 0, 0,-1}, {-1, 0, 0, 1},
{ 0,-1, 0, 1}, { 0, 1, 0,-1}, {-1, 0, 1, 0}, { 1, 0,-1, 0},
{ 0, 1, 1, 1}, { 0,-1,-1,-1}, { 1, 1, 1, 0}, {-1,-1,-1, 0}, { 1, 1, 0, 1}, {-1,-1, 0,-1}, { 1, 0, 1, 1}, {-1, 0,-1,-1},
{ 0,-1, 1, 1}, { 0, 1,-1,-1}, {-1, 1, 1, 0}, { 1,-1,-1, 0}, { 1, 1, 0,-1}, {-1,-1, 0, 1}, { 1, 0,-1, 1}, {-1, 0, 1,-1},
{ 0, 1,-1, 1}, { 0,-1, 1,-1}, { 1,-1, 1, 0}, {-1, 1,-1, 0}, {-1, 1, 0, 1}, { 1,-1, 0,-1}, { 1, 0, 1,-1}, {-1, 0,-1, 1},
{ 0, 1, 1,-1}, { 0,-1,-1, 1}, { 1, 1,-1, 0}, {-1,-1, 1, 0}, { 1,-1, 0, 1}, {-1, 1, 0,-1}, {-1, 0, 1, 1}, { 1, 0,-1,-1},
{ 1, 1, 1, 1}, {-1,-1,-1,-1},
{ 1, 1, 1,-1}, {-1,-1,-1, 1}, { 1, 1,-1, 1}, {-1,-1, 1,-1}, { 1,-1, 1, 1}, {-1, 1,-1,-1}, {-1, 1, 1, 1}, { 1,-1,-1,-1},
{ 1, 1,-1,-1}, {-1,-1, 1, 1}, { 1,-1,-1, 1}, {-1, 1, 1,-1}, { 1,-1, 1,-1}, {-1, 1,-1, 1},
};
static const uint8_t hash[]={
HASH8( 0, 0, 0, 1), HASH8( 0, 0, 0,-1), HASH8( 0, 0, 1, 0), HASH8( 0, 0,-1, 0), HASH8( 0, 1, 0, 0), HASH8( 0,-1, 0, 0), HASH8( 1, 0, 0, 0), HASH8(-1, 0, 0, 0),
HASH8( 0, 0, 1, 1), HASH8( 0, 0,-1,-1), HASH8( 0, 1, 1, 0), HASH8( 0,-1,-1, 0), HASH8( 1, 1, 0, 0), HASH8(-1,-1, 0, 0), HASH8( 1, 0, 0, 1), HASH8(-1, 0, 0,-1),
HASH8( 0, 1, 0, 1), HASH8( 0,-1, 0,-1), HASH8( 1, 0, 1, 0), HASH8(-1, 0,-1, 0),
HASH8( 0, 0,-1, 1), HASH8( 0, 0, 1,-1), HASH8( 0,-1, 1, 0), HASH8( 0, 1,-1, 0), HASH8(-1, 1, 0, 0), HASH8( 1,-1, 0, 0), HASH8( 1, 0, 0,-1), HASH8(-1, 0, 0, 1),
HASH8( 0,-1, 0, 1), HASH8( 0, 1, 0,-1), HASH8(-1, 0, 1, 0), HASH8( 1, 0,-1, 0),
HASH8( 0, 1, 1, 1), HASH8( 0,-1,-1,-1), HASH8( 1, 1, 1, 0), HASH8(-1,-1,-1, 0), HASH8( 1, 1, 0, 1), HASH8(-1,-1, 0,-1), HASH8( 1, 0, 1, 1), HASH8(-1, 0,-1,-1),
HASH8( 0,-1, 1, 1), HASH8( 0, 1,-1,-1), HASH8(-1, 1, 1, 0), HASH8( 1,-1,-1, 0), HASH8( 1, 1, 0,-1), HASH8(-1,-1, 0, 1), HASH8( 1, 0,-1, 1), HASH8(-1, 0, 1,-1),
HASH8( 0, 1,-1, 1), HASH8( 0,-1, 1,-1), HASH8( 1,-1, 1, 0), HASH8(-1, 1,-1, 0), HASH8(-1, 1, 0, 1), HASH8( 1,-1, 0,-1), HASH8( 1, 0, 1,-1), HASH8(-1, 0,-1, 1),
HASH8( 0, 1, 1,-1), HASH8( 0,-1,-1, 1), HASH8( 1, 1,-1, 0), HASH8(-1,-1, 1, 0), HASH8( 1,-1, 0, 1), HASH8(-1, 1, 0,-1), HASH8(-1, 0, 1, 1), HASH8( 1, 0,-1,-1),
HASH8( 1, 1, 1, 1), HASH8(-1,-1,-1,-1),
HASH8( 1, 1, 1,-1), HASH8(-1,-1,-1, 1), HASH8( 1, 1,-1, 1), HASH8(-1,-1, 1,-1), HASH8( 1,-1, 1, 1), HASH8(-1, 1,-1,-1), HASH8(-1, 1, 1, 1), HASH8( 1,-1,-1,-1),
HASH8( 1, 1,-1,-1), HASH8(-1,-1, 1, 1), HASH8( 1,-1,-1, 1), HASH8(-1, 1, 1,-1), HASH8( 1,-1, 1,-1), HASH8(-1, 1,-1, 1),
};
#define CHECK_BIDIR(fx,fy,bx,by)\
if( !map[(hashidx+HASH(fx,fy,bx,by))&255]\
&&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\
&&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\
int score;\
map[(hashidx+HASH(fx,fy,bx,by))&255] = 1;\
score= check_bidir_mv(s, motion_fx+fx, motion_fy+fy, motion_bx+bx, motion_by+by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);\
if(score < fbmin){\
hashidx += HASH(fx,fy,bx,by);\
fbmin= score;\
motion_fx+=fx;\
motion_fy+=fy;\
motion_bx+=bx;\
motion_by+=by;\
end=0;\
}\
}
#define CHECK_BIDIR2(a,b,c,d)\
CHECK_BIDIR(a,b,c,d)\
CHECK_BIDIR(-(a),-(b),-(c),-(d))
do{
int i;
int borderdist=0;
end=1;
CHECK_BIDIR2(0,0,0,1)
CHECK_BIDIR2(0,0,1,0)
CHECK_BIDIR2(0,1,0,0)
CHECK_BIDIR2(1,0,0,0)
for(i=8; i<limit; i++){
int fx= motion_fx+vect[i][0];
int fy= motion_fy+vect[i][1];
int bx= motion_bx+vect[i][2];
int by= motion_by+vect[i][3];
if(borderdist<=0){
int a= (xmax - FFMAX(fx,bx))|(FFMIN(fx,bx) - xmin);
int b= (ymax - FFMAX(fy,by))|(FFMIN(fy,by) - ymin);
if((a|b) < 0)
map[(hashidx+hash[i])&255] = 1;
}
if(!map[(hashidx+hash[i])&255]){
int score;
map[(hashidx+hash[i])&255] = 1;
score= check_bidir_mv(s, fx, fy, bx, by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);
if(score < fbmin){
hashidx += hash[i];
fbmin= score;
motion_fx=fx;
motion_fy=fy;
motion_bx=bx;
motion_by=by;
end=0;
borderdist--;
if(borderdist<=0){
int a= FFMIN(xmax - FFMAX(fx,bx), FFMIN(fx,bx) - xmin);
int b= FFMIN(ymax - FFMAX(fy,by), FFMIN(fy,by) - ymin);
borderdist= FFMIN(a,b);
}
}
}
}
}while(!end);
}
s->b_bidir_forw_mv_table[xy][0]= motion_fx;
s->b_bidir_forw_mv_table[xy][1]= motion_fy;
s->b_bidir_back_mv_table[xy][0]= motion_bx;
s->b_bidir_back_mv_table[xy][1]= motion_by;
return fbmin;
}
static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
{
MotionEstContext * const c= &s->me;
int P[10][2];
const int mot_stride = s->mb_stride;
const int mot_xy = mb_y*mot_stride + mb_x;
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;
c->current_mv_penalty= c->mv_penalty[1] + MAX_MV;
ymin= xmin=(-32)>>shift;
ymax= xmax= 31>>shift;
if (IS_8X8(s->next_picture.mb_type[mot_xy])) {
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;
c->co_located_mv[i][0] = s->next_picture.motion_val[0][index][0];
c->co_located_mv[i][1] = s->next_picture.motion_val[0][index][1];
c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
// c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
// c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
max+= 16*mb_x + 1; // +-1 is for the simpler rounding
min+= 16*mb_x - 1;
xmax= FFMIN(xmax, s->width - max);
xmin= FFMAX(xmin, - 16 - min);
max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
max+= 16*mb_y + 1; // +-1 is for the simpler rounding
min+= 16*mb_y - 1;
ymax= FFMIN(ymax, s->height - max);
ymin= FFMAX(ymin, - 16 - 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;
}
c->xmin= xmin;
c->ymin= ymin;
c->xmax= xmax;
c->ymax= ymax;
c->flags |= FLAG_DIRECT;
c->sub_flags |= FLAG_DIRECT;
c->pred_x=0;
c->pred_y=0;
P_LEFT[0] = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);
P_LEFT[1] = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
/* special case for first line */
if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
P_TOP[0] = av_clip(mv_table[mot_xy - mot_stride ][0], xmin<<shift, xmax<<shift);
P_TOP[1] = av_clip(mv_table[mot_xy - mot_stride ][1], ymin<<shift, ymax<<shift);
P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1 ][0], xmin<<shift, xmax<<shift);
P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1 ][1], ymin<<shift, 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]);
}
dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
if(c->sub_flags&FLAG_QPEL)
dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
else
dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed
mv_table[mot_xy][0]= mx;
mv_table[mot_xy][1]= my;
c->flags &= ~FLAG_DIRECT;
c->sub_flags &= ~FLAG_DIRECT;
return dmin;
}
void ff_estimate_b_frame_motion(MpegEncContext * s,
int mb_x, int mb_y)
{
MotionEstContext * const c= &s->me;
const int penalty_factor= c->mb_penalty_factor;
int fmin, bmin, dmin, fbmin, bimin, fimin;
int type=0;
const int xy = mb_y*s->mb_stride + mb_x;
init_ref(c, s->new_picture.f.data, s->last_picture.f.data,
s->next_picture.f.data, 16 * mb_x, 16 * mb_y, 2);
get_limits(s, 16*mb_x, 16*mb_y);
c->skip=0;
if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {
int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
score= ((unsigned)(score*score + 128*256))>>16;
c->mc_mb_var_sum_temp += score;
s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
return;
}
if (s->codec_id == AV_CODEC_ID_MPEG4)
dmin= direct_search(s, mb_x, mb_y);
else
dmin= INT_MAX;
//FIXME penalty stuff for non mpeg4
c->skip=0;
fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +
3 * penalty_factor;
c->skip=0;
bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +
2 * penalty_factor;
av_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
c->skip=0;
fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
av_dlog(s, "%d %d %d %d\n", dmin, fmin, bmin, fbmin);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
//FIXME mb type penalty
c->skip=0;
c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
fimin= interlaced_search(s, 0,
s->b_field_mv_table[0], s->b_field_select_table[0],
s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
bimin= interlaced_search(s, 2,
s->b_field_mv_table[1], s->b_field_select_table[1],
s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
}else
fimin= bimin= INT_MAX;
{
int score= fmin;
type = CANDIDATE_MB_TYPE_FORWARD;
if (dmin <= score){
score = dmin;
type = CANDIDATE_MB_TYPE_DIRECT;
}
if(bmin<score){
score=bmin;
type= CANDIDATE_MB_TYPE_BACKWARD;
}
if(fbmin<score){
score=fbmin;
type= CANDIDATE_MB_TYPE_BIDIR;
}
if(fimin<score){
score=fimin;
type= CANDIDATE_MB_TYPE_FORWARD_I;
}
if(bimin<score){
score=bimin;
type= CANDIDATE_MB_TYPE_BACKWARD_I;
}
score= ((unsigned)(score*score + 128*256))>>16;
c->mc_mb_var_sum_temp += score;
s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
}
if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;
if(fimin < INT_MAX)
type |= CANDIDATE_MB_TYPE_FORWARD_I;
if(bimin < INT_MAX)
type |= CANDIDATE_MB_TYPE_BACKWARD_I;
if(fimin < INT_MAX && bimin < INT_MAX){
type |= CANDIDATE_MB_TYPE_BIDIR_I;
}
//FIXME something smarter
if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
if(s->codec_id == AV_CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT && s->flags&CODEC_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])
type |= CANDIDATE_MB_TYPE_DIRECT0;
}
s->mb_type[mb_y*s->mb_stride + 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, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
uint8_t * fcode_tab= s->fcode_tab;
int best_fcode=-1;
int best_score=-10000000;
if(s->msmpeg4_version)
range= FFMIN(range, 16);
else if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)
range= FFMIN(range, 256);
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*s->mb_stride;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[xy] & type){
int mx= mv_table[xy][0];
int my= mv_table[xy][1];
int fcode= FFMAX(fcode_tab[mx + MAX_MV],
fcode_tab[my + MAX_MV]);
int j;
if(mx >= range || mx < -range ||
my >= range || my < -range)
continue;
for(j=0; j<fcode && j<8; j++){
if(s->pict_type==AV_PICTURE_TYPE_B || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
score[j]-= 170;
}
}
xy++;
}
}
for(i=1; i<8; i++){
if(score[i] > best_score){
best_score= score[i];
best_fcode= i;
}
}
return best_fcode;
}else{
return 1;
}
}
void ff_fix_long_p_mvs(MpegEncContext * s)
{
MotionEstContext * const c= &s->me;
const int f_code= s->f_code;
int y, range;
assert(s->pict_type==AV_PICTURE_TYPE_P);
range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
assert(range <= 16 || !s->msmpeg4_version);
assert(range <=256 || !(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));
if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
if(s->flags&CODEC_FLAG_4MV){
const int wrap= s->b8_stride;
/* clip / convert to intra 8x8 type MVs */
for(y=0; y<s->mb_height; y++){
int xy= y*2*wrap;
int i= y*s->mb_stride;
int x;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){
int block;
for(block=0; block<4; block++){
int off= (block& 1) + (block>>1)*wrap;
int mx = s->current_picture.motion_val[0][ xy + off ][0];
int my = s->current_picture.motion_val[0][ xy + off ][1];
if( mx >=range || mx <-range
|| my >=range || my <-range){
s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
s->mb_type[i] |= CANDIDATE_MB_TYPE_INTRA;
s->current_picture.mb_type[i] = CANDIDATE_MB_TYPE_INTRA;
}
}
}
xy+=2;
i++;
}
}
}
}
/**
*
* @param truncate 1 for truncation, 0 for using intra
*/
void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
int16_t (*mv_table)[2], int f_code, int type, int truncate)
{
MotionEstContext * const c= &s->me;
int y, h_range, v_range;
// RAL: 8 in MPEG-1, 16 in MPEG-4
int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
h_range= range;
v_range= field_select_table ? range>>1 : range;
/* clip / convert to intra 16x16 type MVs */
for(y=0; y<s->mb_height; y++){
int x;
int xy= y*s->mb_stride;
for(x=0; x<s->mb_width; x++){
if (s->mb_type[xy] & type){ // RAL: "type" test added...
if(field_select_table==NULL || field_select_table[xy] == field_select){
if( mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range
|| mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){
if(truncate){
if (mv_table[xy][0] > h_range-1) mv_table[xy][0]= h_range-1;
else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
if (mv_table[xy][1] > v_range-1) mv_table[xy][1]= v_range-1;
else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
}else{
s->mb_type[xy] &= ~type;
s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;
mv_table[xy][0]=
mv_table[xy][1]= 0;
}
}
}
}
xy++;
}
}
}
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