/*
* Motion estimation
- * Copyright (c) 2000,2001 Fabrice Bellard.
+ * 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.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * 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_est.c
+ * @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
+ (chroma ? FLAG_CHROMA : 0);
}
-/*! \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,
+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, const int flags){
+ 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 uvstride= c->uvstride;
- const int qpel= flags&FLAG_QPEL;
- const int chroma= flags&FLAG_CHROMA;
- 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 ...)
- if(flags&FLAG_DIRECT){
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;
d = cmp_func(s, c->temp, src[0], stride, 16);
}else
d= 256*256*256*32;
- }else{
+ 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){
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);
}
-#if 0
- if(full_pel){
- const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);
- score_map[index]= d;
+}
+
+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);
}
+}
- d += (c->mv_penalty[hx - c->pred_x] + c->mv_penalty[hy - c->pred_y])*c->penalty_factor;
-#endif
- return d;
+/** @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"
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;
c->sub_motion_search= no_sub_motion_search;
}
- c->temp= c->scratchpad;
-
return 0;
}
}
if(USES_LIST(mb_type, 0)){
- int field_select0= p->ref_index[0][xy ];
- int field_select1= p->ref_index[0][xy2];
+ 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);
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][xy ];
- int field_select1= p->ref_index[1][xy2];
+ 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);
// pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
c->mc_mb_var_sum_temp += (vard+128)>>8;
-#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(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;
const int ymin= c->ymin<<shift;
const int xmax= c->xmax<<shift;
const int ymax= c->ymax<<shift;
- uint8_t map[8][8][8][8];
+#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];
memset(map,0,sizeof(map));
-#define BIDIR_MAP(fx,fy,bx,by) \
- map[(motion_fx+fx)&7][(motion_fy+fy)&7][(motion_bx+bx)&7][(motion_by+by)&7]
- BIDIR_MAP(0,0,0,0) = 1;
+ map[hashidx&255] = 1;
fbmin= check_bidir_mv(s, motion_fx, motion_fy,
motion_bx, motion_by,
0, 16);
if(s->avctx->bidir_refine){
- int score, end;
+ 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( !BIDIR_MAP(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)){\
- BIDIR_MAP(fx,fy,bx,by) = 1;\
+ 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;\
CHECK_BIDIR(a,b,c,d)\
CHECK_BIDIR(-(a),-(b),-(c),-(d))
-#define CHECK_BIDIRR(a,b,c,d)\
-CHECK_BIDIR2(a,b,c,d)\
-CHECK_BIDIR2(b,c,d,a)\
-CHECK_BIDIR2(c,d,a,b)\
-CHECK_BIDIR2(d,a,b,c)
-
do{
+ int i;
+ int borderdist=0;
end=1;
- CHECK_BIDIRR( 0, 0, 0, 1)
- if(s->avctx->bidir_refine > 1){
- CHECK_BIDIRR( 0, 0, 1, 1)
- CHECK_BIDIR2( 0, 1, 0, 1)
- CHECK_BIDIR2( 1, 0, 1, 0)
- CHECK_BIDIRR( 0, 0,-1, 1)
- CHECK_BIDIR2( 0,-1, 0, 1)
- CHECK_BIDIR2(-1, 0, 1, 0)
- if(s->avctx->bidir_refine > 2){
- CHECK_BIDIRR( 0, 1, 1, 1)
- CHECK_BIDIRR( 0,-1, 1, 1)
- CHECK_BIDIRR( 0, 1,-1, 1)
- CHECK_BIDIRR( 0, 1, 1,-1)
- if(s->avctx->bidir_refine > 3){
- CHECK_BIDIR2( 1, 1, 1, 1)
- CHECK_BIDIRR( 1, 1, 1,-1)
- CHECK_BIDIR2( 1, 1,-1,-1)
- CHECK_BIDIR2( 1,-1,-1, 1)
- CHECK_BIDIR2( 1,-1, 1,-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);
+ }
}
}
}
continue;
for(j=0; j<fcode && j<8; j++){
- if(s->pict_type==FF_B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
+ if(s->pict_type==AV_PICTURE_TYPE_B || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
score[j]-= 170;
}
}
MotionEstContext * const c= &s->me;
const int f_code= s->f_code;
int y, range;
- assert(s->pict_type==FF_P_TYPE);
+ assert(s->pict_type==AV_PICTURE_TYPE_P);
range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
projects / ffmpeg / blobdiff