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motion_est.c
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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 FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; 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 "libavutil/intmath.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mathops.h"
#include "mpegvideo.h"
#undef NDEBUG
#include <assert.h>
#define SQ(a) ((a)*(a))
#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 inline 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 int 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, int 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;
}
//special case of snow is needed because snow uses its own iterative ME code
if(s->me_method!=ME_ZERO && s->me_method!=ME_EPZS && s->me_method!=ME_X1 && s->avctx->codec_id != CODEC_ID_SNOW){
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->dsp.avg_pixels_tab;
if(s->no_rounding) c->hpel_put= s->dsp.put_no_rnd_pixels_tab;
else c->hpel_put= s->dsp.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(s->codec_id != CODEC_ID_SNOW){
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 == CODEC_ID_H261){
c->sub_motion_search= no_sub_motion_search;
}
return 0;
}
#if 0
static int pix_dev(uint8_t * 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 += FFABS(pix[0]-mean);
s += FFABS(pix[1]-mean);
s += FFABS(pix[2]-mean);
s += FFABS(pix[3]-mean);
s += FFABS(pix[4]-mean);
s += FFABS(pix[5]-mean);
s += FFABS(pix[6]-mean);
s += FFABS(pix[7]-mean);
pix += 8;
}
pix += line_size - 16;
}
return s;
}
#endif
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;
}
#define Z_THRESHOLD 256
#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 inline 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){
// printf("S");
*mx_ptr = 0;
*my_ptr = 0;
return dmin;
}
// printf("N");
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->dsp.put_no_rnd_pixels_tab[1][dxy](dest_y , ref , stride, h);
else
s->dsp.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.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->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad , s->last_picture.data[1] + offset, s->uvlinesize, 8);
s->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad+8 , s->last_picture.data[2] + offset, s->uvlinesize, 8);
}else{
s->dsp.put_pixels_tab [1][dxy](c->scratchpad , s->last_picture.data[1] + offset, s->uvlinesize, 8);
s->dsp.put_pixels_tab [1][dxy](c->scratchpad+8 , s->last_picture.data[2] + offset, s->uvlinesize, 8);
}
dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.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.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->dsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref , stride, h);
}else{
s->dsp.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 void clip_input_mv(MpegEncContext * s, int16_t *mv, int interlaced){
int ymax= s->me.ymax>>interlaced;
int ymin= s->me.ymin>>interlaced;
if(mv[0] < s->me.xmin) mv[0] = s->me.xmin;
if(mv[0] > s->me.xmax) mv[0] = s->me.xmax;
if(mv[1] < ymin) mv[1] = ymin;
if(mv[1] > ymax) mv[1] = ymax;
}
static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int p_type){
MotionEstContext * const c= &s->me;
Picture *p= s->current_picture_ptr;
int mb_xy= mb_x + mb_y*s->mb_stride;
int xy= 2*mb_x + 2*mb_y*s->b8_stride;
int mb_type= s->current_picture.mb_type[mb_xy];
int flags= c->flags;
int shift= (flags&FLAG_QPEL) + 1;
int mask= (1<<shift)-1;
int x, y, i;
int d=0;
me_cmp_func cmpf= s->dsp.sse[0];
me_cmp_func chroma_cmpf= s->dsp.sse[1];
if(p_type && USES_LIST(mb_type, 1)){
av_log(c->avctx, AV_LOG_ERROR, "backward motion vector in P frame\n");
return INT_MAX/2;
}
assert(IS_INTRA(mb_type) || USES_LIST(mb_type,0) || USES_LIST(mb_type,1));
for(i=0; i<4; i++){
int xy= s->block_index[i];
clip_input_mv(s, p->motion_val[0][xy], !!IS_INTERLACED(mb_type));
clip_input_mv(s, p->motion_val[1][xy], !!IS_INTERLACED(mb_type));
}
if(IS_INTERLACED(mb_type)){
int xy2= xy + s->b8_stride;
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
c->stride<<=1;
c->uvstride<<=1;
if(!(s->flags & CODEC_FLAG_INTERLACED_ME)){
av_log(c->avctx, AV_LOG_ERROR, "Interlaced macroblock selected but interlaced motion estimation disabled\n");
return INT_MAX/2;
}
if(USES_LIST(mb_type, 0)){
int field_select0= p->ref_index[0][4*mb_xy ];
int field_select1= p->ref_index[0][4*mb_xy+2];
assert(field_select0==0 ||field_select0==1);
assert(field_select1==0 ||field_select1==1);
init_interlaced_ref(s, 0);
if(p_type){
s->p_field_select_table[0][mb_xy]= field_select0;
s->p_field_select_table[1][mb_xy]= field_select1;
*(uint32_t*)s->p_field_mv_table[0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
*(uint32_t*)s->p_field_mv_table[1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER_I;
}else{
s->b_field_select_table[0][0][mb_xy]= field_select0;
s->b_field_select_table[0][1][mb_xy]= field_select1;
*(uint32_t*)s->b_field_mv_table[0][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
*(uint32_t*)s->b_field_mv_table[0][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_FORWARD_I;
}
x= p->motion_val[0][xy ][0];
y= p->motion_val[0][xy ][1];
d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0, 0, cmpf, chroma_cmpf, flags);
x= p->motion_val[0][xy2][0];
y= p->motion_val[0][xy2][1];
d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1, 1, cmpf, chroma_cmpf, flags);
}
if(USES_LIST(mb_type, 1)){
int field_select0= p->ref_index[1][4*mb_xy ];
int field_select1= p->ref_index[1][4*mb_xy+2];
assert(field_select0==0 ||field_select0==1);
assert(field_select1==0 ||field_select1==1);
init_interlaced_ref(s, 2);
s->b_field_select_table[1][0][mb_xy]= field_select0;
s->b_field_select_table[1][1][mb_xy]= field_select1;
*(uint32_t*)s->b_field_mv_table[1][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[1][xy ];
*(uint32_t*)s->b_field_mv_table[1][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[1][xy2];
if(USES_LIST(mb_type, 0)){
s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BIDIR_I;
}else{
s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BACKWARD_I;
}
x= p->motion_val[1][xy ][0];
y= p->motion_val[1][xy ][1];
d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0+2, 0, cmpf, chroma_cmpf, flags);
x= p->motion_val[1][xy2][0];
y= p->motion_val[1][xy2][1];
d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1+2, 1, cmpf, chroma_cmpf, flags);
//FIXME bidir scores
}
c->stride>>=1;
c->uvstride>>=1;
}else if(IS_8X8(mb_type)){
if(!(s->flags & CODEC_FLAG_4MV)){
av_log(c->avctx, AV_LOG_ERROR, "4MV macroblock selected but 4MV encoding disabled\n");
return INT_MAX/2;
}
cmpf= s->dsp.sse[1];
chroma_cmpf= s->dsp.sse[1];
init_mv4_ref(c);
for(i=0; i<4; i++){
xy= s->block_index[i];
x= p->motion_val[0][xy][0];
y= p->motion_val[0][xy][1];
d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 1, 8, i, i, cmpf, chroma_cmpf, flags);
}
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER4V;
}else{
if(USES_LIST(mb_type, 0)){
if(p_type){
*(uint32_t*)s->p_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER;
}else if(USES_LIST(mb_type, 1)){
*(uint32_t*)s->b_bidir_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
*(uint32_t*)s->b_bidir_back_mv_table[mb_xy]= *(uint32_t*)p->motion_val[1][xy];
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_BIDIR;
}else{
*(uint32_t*)s->b_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_FORWARD;
}
x= p->motion_val[0][xy][0];
y= p->motion_val[0][xy][1];
d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 16, 0, 0, cmpf, chroma_cmpf, flags);
}else if(USES_LIST(mb_type, 1)){