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ffmpeg / libavcodec / motion_est.c @ 199436b9

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1
/*
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 * Motion estimation
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 * Copyright (c) 2000,2001 Fabrice Bellard.
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 * Copyright (c) 2002-2004 Michael Niedermayer
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 *
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 * new motion estimation (X1/EPZS) by Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
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 * @file motion_est.c
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 * Motion estimation.
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 */
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#include <stdlib.h>
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#include <stdio.h>
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#include <limits.h>
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#include "avcodec.h"
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#include "dsputil.h"
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#include "mathops.h"
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#include "mpegvideo.h"
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#undef NDEBUG
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#include <assert.h>
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#define SQ(a) ((a)*(a))
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#define P_LEFT P[1]
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#define P_TOP P[2]
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#define P_TOPRIGHT P[3]
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#define P_MEDIAN P[4]
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#define P_MV1 P[9]
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static inline int sad_hpel_motion_search(MpegEncContext * s,
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                                  int *mx_ptr, int *my_ptr, int dmin,
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                                  int src_index, int ref_index,
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                                  int size, int h);
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static inline int update_map_generation(MotionEstContext *c)
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{
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    c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
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    if(c->map_generation==0){
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        c->map_generation= 1<<(ME_MAP_MV_BITS*2);
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        memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
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    }
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    return c->map_generation;
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}
63

    
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/* shape adaptive search stuff */
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typedef struct Minima{
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    int height;
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    int x, y;
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    int checked;
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}Minima;
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static int minima_cmp(const void *a, const void *b){
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    const Minima *da = (const Minima *) a;
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    const Minima *db = (const Minima *) b;
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    return da->height - db->height;
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}
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#define FLAG_QPEL   1 //must be 1
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#define FLAG_CHROMA 2
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#define FLAG_DIRECT 4
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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){
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    const int offset[3]= {
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          y*c->  stride + x,
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        ((y*c->uvstride + x)>>1),
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        ((y*c->uvstride + x)>>1),
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    };
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    int i;
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    for(i=0; i<3; i++){
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        c->src[0][i]= src [i] + offset[i];
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        c->ref[0][i]= ref [i] + offset[i];
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    }
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    if(ref_index){
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        for(i=0; i<3; i++){
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            c->ref[ref_index][i]= ref2[i] + offset[i];
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        }
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    }
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}
99

    
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static int get_flags(MotionEstContext *c, int direct, int chroma){
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    return   ((c->avctx->flags&CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)
102
           + (direct ? FLAG_DIRECT : 0)
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           + (chroma ? FLAG_CHROMA : 0);
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}
105

    
106
/*! \brief compares a block (either a full macroblock or a partition thereof)
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    against a proposed motion-compensated prediction of that block
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 */
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static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
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                      const int size, const int h, int ref_index, int src_index,
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                      me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
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    MotionEstContext * const c= &s->me;
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    const int stride= c->stride;
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    const int uvstride= c->uvstride;
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    const int qpel= flags&FLAG_QPEL;
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    const int chroma= flags&FLAG_CHROMA;
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    const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
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    const int hx= subx + (x<<(1+qpel));
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    const int hy= suby + (y<<(1+qpel));
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    uint8_t * const * const ref= c->ref[ref_index];
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    uint8_t * const * const src= c->src[src_index];
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    int d;
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    //FIXME check chroma 4mv, (no crashes ...)
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    if(flags&FLAG_DIRECT){
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        assert(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
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        if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
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            const int time_pp= s->pp_time;
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            const int time_pb= s->pb_time;
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            const int mask= 2*qpel+1;
130
            if(s->mv_type==MV_TYPE_8X8){
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                int i;
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                for(i=0; i<4; i++){
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                    int fx = c->direct_basis_mv[i][0] + hx;
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                    int fy = c->direct_basis_mv[i][1] + hy;
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                    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));
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                    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));
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                    int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
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                    int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
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140
                    uint8_t *dst= c->temp + 8*(i&1) + 8*stride*(i>>1);
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                    if(qpel){
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                        c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
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                        c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
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                    }else{
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                        c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
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                        c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
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                    }
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                }
149
            }else{
150
                int fx = c->direct_basis_mv[0][0] + hx;
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                int fy = c->direct_basis_mv[0][1] + hy;
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                int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
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                int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
154
                int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
155
                int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
156

    
157
                if(qpel){
158
                    c->qpel_put[1][fxy](c->temp               , ref[0] + (fx>>2) + (fy>>2)*stride               , stride);
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                    c->qpel_put[1][fxy](c->temp + 8           , ref[0] + (fx>>2) + (fy>>2)*stride + 8           , stride);
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                    c->qpel_put[1][fxy](c->temp     + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride     + 8*stride, stride);
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                    c->qpel_put[1][fxy](c->temp + 8 + 8*stride, ref[0] + (fx>>2) + (fy>>2)*stride + 8 + 8*stride, stride);
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                    c->qpel_avg[1][bxy](c->temp               , ref[8] + (bx>>2) + (by>>2)*stride               , stride);
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                    c->qpel_avg[1][bxy](c->temp + 8           , ref[8] + (bx>>2) + (by>>2)*stride + 8           , stride);
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                    c->qpel_avg[1][bxy](c->temp     + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride     + 8*stride, stride);
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                    c->qpel_avg[1][bxy](c->temp + 8 + 8*stride, ref[8] + (bx>>2) + (by>>2)*stride + 8 + 8*stride, stride);
166
                }else{
167
                    assert((fx>>1) + 16*s->mb_x >= -16);
168
                    assert((fy>>1) + 16*s->mb_y >= -16);
169
                    assert((fx>>1) + 16*s->mb_x <= s->width);
170
                    assert((fy>>1) + 16*s->mb_y <= s->height);
171
                    assert((bx>>1) + 16*s->mb_x >= -16);
172
                    assert((by>>1) + 16*s->mb_y >= -16);
173
                    assert((bx>>1) + 16*s->mb_x <= s->width);
174
                    assert((by>>1) + 16*s->mb_y <= s->height);
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176
                    c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
177
                    c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
178
                }
179
            }
180
            d = cmp_func(s, c->temp, src[0], stride, 16);
181
        }else
182
            d= 256*256*256*32;
183
    }else{
184
        int uvdxy;              /* no, it might not be used uninitialized */
185
        if(dxy){
186
            if(qpel){
187
                c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
188
                if(chroma){
189
                    int cx= hx/2;
190
                    int cy= hy/2;
191
                    cx= (cx>>1)|(cx&1);
192
                    cy= (cy>>1)|(cy&1);
193
                    uvdxy= (cx&1) + 2*(cy&1);
194
                    //FIXME x/y wrong, but mpeg4 qpel is sick anyway, we should drop as much of it as possible in favor for h264
195
                }
196
            }else{
197
                c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
198
                if(chroma)
199
                    uvdxy= dxy | (x&1) | (2*(y&1));
200
            }
201
            d = cmp_func(s, c->temp, src[0], stride, h);
202
        }else{
203
            d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
204
            if(chroma)
205
                uvdxy= (x&1) + 2*(y&1);
206
        }
207
        if(chroma){
208
            uint8_t * const uvtemp= c->temp + 16*stride;
209
            c->hpel_put[size+1][uvdxy](uvtemp  , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
210
            c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
211
            d += chroma_cmp_func(s, uvtemp  , src[1], uvstride, h>>1);
212
            d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
213
        }
214
    }
215
#if 0
216
    if(full_pel){
217
        const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);
218
        score_map[index]= d;
219
    }
220

221
    d += (c->mv_penalty[hx - c->pred_x] + c->mv_penalty[hy - c->pred_y])*c->penalty_factor;
222
#endif
223
    return d;
224
}
225

    
226
#include "motion_est_template.c"
227

    
228
static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride, int h){
229
    return 0;
230
}
231

    
232
static void zero_hpel(uint8_t *a, const uint8_t *b, int stride, int h){
233
}
234

    
235
int ff_init_me(MpegEncContext *s){
236
    MotionEstContext * const c= &s->me;
237
    int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);
238
    int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
239

    
240
    if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -ME_MAP_SIZE){
241
        av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
242
        return -1;
243
    }
244
    //special case of snow is needed because snow uses its own iterative ME code
245
    if(s->me_method!=ME_ZERO && s->me_method!=ME_EPZS && s->me_method!=ME_X1 && s->avctx->codec_id != CODEC_ID_SNOW){
246
        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");
247
        return -1;
248
    }
249

    
250
    c->avctx= s->avctx;
251

    
252
    if(cache_size < 2*dia_size && !c->stride){
253
        av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
254
    }
255

    
256
    ff_set_cmp(&s->dsp, s->dsp.me_pre_cmp, c->avctx->me_pre_cmp);
257
    ff_set_cmp(&s->dsp, s->dsp.me_cmp, c->avctx->me_cmp);
258
    ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, c->avctx->me_sub_cmp);
259
    ff_set_cmp(&s->dsp, s->dsp.mb_cmp, c->avctx->mb_cmp);
260

    
261
    c->flags    = get_flags(c, 0, c->avctx->me_cmp    &FF_CMP_CHROMA);
262
    c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);
263
    c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp    &FF_CMP_CHROMA);
264

    
265
/*FIXME s->no_rounding b_type*/
266
    if(s->flags&CODEC_FLAG_QPEL){
267
        c->sub_motion_search= qpel_motion_search;
268
        c->qpel_avg= s->dsp.avg_qpel_pixels_tab;
269
        if(s->no_rounding) c->qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;
270
        else               c->qpel_put= s->dsp.put_qpel_pixels_tab;
271
    }else{
272
        if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)
273
            c->sub_motion_search= hpel_motion_search;
274
        else if(   c->avctx->me_sub_cmp == FF_CMP_SAD
275
                && c->avctx->    me_cmp == FF_CMP_SAD
276
                && c->avctx->    mb_cmp == FF_CMP_SAD)
277
            c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
278
        else
279
            c->sub_motion_search= hpel_motion_search;
280
    }
281
    c->hpel_avg= s->dsp.avg_pixels_tab;
282
    if(s->no_rounding) c->hpel_put= s->dsp.put_no_rnd_pixels_tab;
283
    else               c->hpel_put= s->dsp.put_pixels_tab;
284

    
285
    if(s->linesize){
286
        c->stride  = s->linesize;
287
        c->uvstride= s->uvlinesize;
288
    }else{
289
        c->stride  = 16*s->mb_width + 32;
290
        c->uvstride=  8*s->mb_width + 16;
291
    }
292

    
293
    /* 8x8 fullpel search would need a 4x4 chroma compare, which we do
294
     * not have yet, and even if we had, the motion estimation code
295
     * does not expect it. */
296
    if(s->codec_id != CODEC_ID_SNOW){
297
        if((c->avctx->me_cmp&FF_CMP_CHROMA)/* && !s->dsp.me_cmp[2]*/){
298
            s->dsp.me_cmp[2]= zero_cmp;
299
        }
300
        if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){
301
            s->dsp.me_sub_cmp[2]= zero_cmp;
302
        }
303
        c->hpel_put[2][0]= c->hpel_put[2][1]=
304
        c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
305
    }
306

    
307
    if(s->codec_id == CODEC_ID_H261){
308
        c->sub_motion_search= no_sub_motion_search;
309
    }
310

    
311
    return 0;
312
}
313

    
314
#if 0
315
static int pix_dev(uint8_t * pix, int line_size, int mean)
316
{
317
    int s, i, j;
318

319
    s = 0;
320
    for (i = 0; i < 16; i++) {
321
        for (j = 0; j < 16; j += 8) {
322
            s += FFABS(pix[0]-mean);
323
            s += FFABS(pix[1]-mean);
324
            s += FFABS(pix[2]-mean);
325
            s += FFABS(pix[3]-mean);
326
            s += FFABS(pix[4]-mean);
327
            s += FFABS(pix[5]-mean);
328
            s += FFABS(pix[6]-mean);
329
            s += FFABS(pix[7]-mean);
330
            pix += 8;
331
        }
332
        pix += line_size - 16;
333
    }
334
    return s;
335
}
336
#endif
337

    
338
static inline void no_motion_search(MpegEncContext * s,
339
                                    int *mx_ptr, int *my_ptr)
340
{
341
    *mx_ptr = 16 * s->mb_x;
342
    *my_ptr = 16 * s->mb_y;
343
}
344

    
345
#define Z_THRESHOLD 256
346

    
347
#define CHECK_SAD_HALF_MV(suffix, x, y) \
348
{\
349
    d= s->dsp.pix_abs[size][(x?1:0)+(y?2:0)](NULL, pix, ptr+((x)>>1), stride, h);\
350
    d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
351
    COPY3_IF_LT(dminh, d, dx, x, dy, y)\
352
}
353

    
354
static inline int sad_hpel_motion_search(MpegEncContext * s,
355
                                  int *mx_ptr, int *my_ptr, int dmin,
356
                                  int src_index, int ref_index,
357
                                  int size, int h)
358
{
359
    MotionEstContext * const c= &s->me;
360
    const int penalty_factor= c->sub_penalty_factor;
361
    int mx, my, dminh;
362
    uint8_t *pix, *ptr;
363
    int stride= c->stride;
364
    const int flags= c->sub_flags;
365
    LOAD_COMMON
366

    
367
    assert(flags == 0);
368

    
369
    if(c->skip){
370
//    printf("S");
371
        *mx_ptr = 0;
372
        *my_ptr = 0;
373
        return dmin;
374
    }
375
//    printf("N");
376

    
377
    pix = c->src[src_index][0];
378

    
379
    mx = *mx_ptr;
380
    my = *my_ptr;
381
    ptr = c->ref[ref_index][0] + (my * stride) + mx;
382

    
383
    dminh = dmin;
384

    
385
    if (mx > xmin && mx < xmax &&
386
        my > ymin && my < ymax) {
387
        int dx=0, dy=0;
388
        int d, pen_x, pen_y;
389
        const int index= (my<<ME_MAP_SHIFT) + mx;
390
        const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
391
        const int l= score_map[(index- 1               )&(ME_MAP_SIZE-1)];
392
        const int r= score_map[(index+ 1               )&(ME_MAP_SIZE-1)];
393
        const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
394
        mx<<=1;
395
        my<<=1;
396

    
397

    
398
        pen_x= pred_x + mx;
399
        pen_y= pred_y + my;
400

    
401
        ptr-= stride;
402
        if(t<=b){
403
            CHECK_SAD_HALF_MV(y2 , 0, -1)
404
            if(l<=r){
405
                CHECK_SAD_HALF_MV(xy2, -1, -1)
406
                if(t+r<=b+l){
407
                    CHECK_SAD_HALF_MV(xy2, +1, -1)
408
                    ptr+= stride;
409
                }else{
410
                    ptr+= stride;
411
                    CHECK_SAD_HALF_MV(xy2, -1, +1)
412
                }
413
                CHECK_SAD_HALF_MV(x2 , -1,  0)
414
            }else{
415
                CHECK_SAD_HALF_MV(xy2, +1, -1)
416
                if(t+l<=b+r){
417
                    CHECK_SAD_HALF_MV(xy2, -1, -1)
418
                    ptr+= stride;
419
                }else{
420
                    ptr+= stride;
421
                    CHECK_SAD_HALF_MV(xy2, +1, +1)
422
                }
423
                CHECK_SAD_HALF_MV(x2 , +1,  0)
424
            }
425
        }else{
426
            if(l<=r){
427
                if(t+l<=b+r){
428
                    CHECK_SAD_HALF_MV(xy2, -1, -1)
429
                    ptr+= stride;
430
                }else{
431
                    ptr+= stride;
432
                    CHECK_SAD_HALF_MV(xy2, +1, +1)
433
                }
434
                CHECK_SAD_HALF_MV(x2 , -1,  0)
435
                CHECK_SAD_HALF_MV(xy2, -1, +1)
436
            }else{
437
                if(t+r<=b+l){
438
                    CHECK_SAD_HALF_MV(xy2, +1, -1)
439
                    ptr+= stride;
440
                }else{
441
                    ptr+= stride;
442
                    CHECK_SAD_HALF_MV(xy2, -1, +1)
443
                }
444
                CHECK_SAD_HALF_MV(x2 , +1,  0)
445
                CHECK_SAD_HALF_MV(xy2, +1, +1)
446
            }
447
            CHECK_SAD_HALF_MV(y2 ,  0, +1)
448
        }
449
        mx+=dx;
450
        my+=dy;
451

    
452
    }else{
453
        mx<<=1;
454
        my<<=1;
455
    }
456

    
457
    *mx_ptr = mx;
458
    *my_ptr = my;
459
    return dminh;
460
}
461

    
462
static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
463
{
464
    const int xy= s->mb_x + s->mb_y*s->mb_stride;
465

    
466
    s->p_mv_table[xy][0] = mx;
467
    s->p_mv_table[xy][1] = my;
468

    
469
    /* has already been set to the 4 MV if 4MV is done */
470
    if(mv4){
471
        int mot_xy= s->block_index[0];
472

    
473
        s->current_picture.motion_val[0][mot_xy  ][0]= mx;
474
        s->current_picture.motion_val[0][mot_xy  ][1]= my;
475
        s->current_picture.motion_val[0][mot_xy+1][0]= mx;
476
        s->current_picture.motion_val[0][mot_xy+1][1]= my;
477

    
478
        mot_xy += s->b8_stride;
479
        s->current_picture.motion_val[0][mot_xy  ][0]= mx;
480
        s->current_picture.motion_val[0][mot_xy  ][1]= my;
481
        s->current_picture.motion_val[0][mot_xy+1][0]= mx;
482
        s->current_picture.motion_val[0][mot_xy+1][1]= my;
483
    }
484
}
485

    
486
/**
487
 * get fullpel ME search limits.
488
 */
489
static inline void get_limits(MpegEncContext *s, int x, int y)
490
{
491
    MotionEstContext * const c= &s->me;
492
    int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
493
/*
494
    if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
495
    else                   c->range= 16;
496
*/
497
    if (s->unrestricted_mv) {
498
        c->xmin = - x - 16;
499
        c->ymin = - y - 16;
500
        c->xmax = - x + s->mb_width *16;
501
        c->ymax = - y + s->mb_height*16;
502
    } else if (s->out_format == FMT_H261){
503
        // Search range of H261 is different from other codec standards
504
        c->xmin = (x > 15) ? - 15 : 0;
505
        c->ymin = (y > 15) ? - 15 : 0;
506
        c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
507
        c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
508
    } else {
509
        c->xmin = - x;
510
        c->ymin = - y;
511
        c->xmax = - x + s->mb_width *16 - 16;
512
        c->ymax = - y + s->mb_height*16 - 16;
513
    }
514
    if(range){
515
        c->xmin = FFMAX(c->xmin,-range);
516
        c->xmax = FFMIN(c->xmax, range);
517
        c->ymin = FFMAX(c->ymin,-range);
518
        c->ymax = FFMIN(c->ymax, range);
519
    }
520
}
521

    
522
static inline void init_mv4_ref(MotionEstContext *c){
523
    const int stride= c->stride;
524

    
525
    c->ref[1][0] = c->ref[0][0] + 8;
526
    c->ref[2][0] = c->ref[0][0] + 8*stride;
527
    c->ref[3][0] = c->ref[2][0] + 8;
528
    c->src[1][0] = c->src[0][0] + 8;
529
    c->src[2][0] = c->src[0][0] + 8*stride;
530
    c->src[3][0] = c->src[2][0] + 8;
531
}
532

    
533
static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
534
{
535
    MotionEstContext * const c= &s->me;
536
    const int size= 1;
537
    const int h=8;
538
    int block;
539
    int P[10][2];
540
    int dmin_sum=0, mx4_sum=0, my4_sum=0;
541
    int same=1;
542
    const int stride= c->stride;
543
    uint8_t *mv_penalty= c->current_mv_penalty;
544

    
545
    init_mv4_ref(c);
546

    
547
    for(block=0; block<4; block++){
548
        int mx4, my4;
549
        int pred_x4, pred_y4;
550
        int dmin4;
551
        static const int off[4]= {2, 1, 1, -1};
552
        const int mot_stride = s->b8_stride;
553
        const int mot_xy = s->block_index[block];
554

    
555
        P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
556
        P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
557

    
558
        if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
559

    
560
        /* special case for first line */
561
        if (s->first_slice_line && block<2) {
562
            c->pred_x= pred_x4= P_LEFT[0];
563
            c->pred_y= pred_y4= P_LEFT[1];
564
        } else {
565
            P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][0];
566
            P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][1];
567
            P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
568
            P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
569
            if(P_TOP[1]      > (c->ymax<<shift)) P_TOP[1]     = (c->ymax<<shift);
570
            if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
571
            if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
572
            if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
573

    
574
            P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
575
            P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
576

    
577
            c->pred_x= pred_x4 = P_MEDIAN[0];
578
            c->pred_y= pred_y4 = P_MEDIAN[1];
579
        }
580
        P_MV1[0]= mx;
581
        P_MV1[1]= my;
582

    
583
        dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);
584

    
585
        dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
586

    
587
        if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
588
            int dxy;
589
            const int offset= ((block&1) + (block>>1)*stride)*8;
590
            uint8_t *dest_y = c->scratchpad + offset;
591
            if(s->quarter_sample){
592
                uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
593
                dxy = ((my4 & 3) << 2) | (mx4 & 3);
594

    
595
                if(s->no_rounding)
596
                    s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y   , ref    , stride);
597
                else
598
                    s->dsp.put_qpel_pixels_tab       [1][dxy](dest_y   , ref    , stride);
599
            }else{
600
                uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
601
                dxy = ((my4 & 1) << 1) | (mx4 & 1);
602

    
603
                if(s->no_rounding)
604
                    s->dsp.put_no_rnd_pixels_tab[1][dxy](dest_y    , ref    , stride, h);
605
                else
606
                    s->dsp.put_pixels_tab       [1][dxy](dest_y    , ref    , stride, h);
607
            }
608
            dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
609
        }else
610
            dmin_sum+= dmin4;
611

    
612
        if(s->quarter_sample){
613
            mx4_sum+= mx4/2;
614
            my4_sum+= my4/2;
615
        }else{
616
            mx4_sum+= mx4;
617
            my4_sum+= my4;
618
        }
619

    
620
        s->current_picture.motion_val[0][ s->block_index[block] ][0]= mx4;
621
        s->current_picture.motion_val[0][ s->block_index[block] ][1]= my4;
622

    
623
        if(mx4 != mx || my4 != my) same=0;
624
    }
625

    
626
    if(same)
627
        return INT_MAX;
628

    
629
    if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
630
        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);
631
    }
632

    
633
    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
634
        int dxy;
635
        int mx, my;
636
        int offset;
637

    
638
        mx= ff_h263_round_chroma(mx4_sum);
639
        my= ff_h263_round_chroma(my4_sum);
640
        dxy = ((my & 1) << 1) | (mx & 1);
641

    
642
        offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;
643

    
644
        if(s->no_rounding){
645
            s->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);
646
            s->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);
647
        }else{
648
            s->dsp.put_pixels_tab       [1][dxy](c->scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);
649
            s->dsp.put_pixels_tab       [1][dxy](c->scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);
650
        }
651

    
652
        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);
653
        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);
654
    }
655

    
656
    c->pred_x= mx;
657
    c->pred_y= my;
658

    
659
    switch(c->avctx->mb_cmp&0xFF){
660
    /*case FF_CMP_SSE:
661
        return dmin_sum+ 32*s->qscale*s->qscale;*/
662
    case FF_CMP_RD:
663
        return dmin_sum;
664
    default:
665
        return dmin_sum+ 11*c->mb_penalty_factor;
666
    }
667
}
668

    
669
static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
670
    MotionEstContext * const c= &s->me;
671

    
672
    c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
673
    c->src[1][0] = c->src[0][0] + s->linesize;
674
    if(c->flags & FLAG_CHROMA){
675
        c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
676
        c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
677
        c->src[1][1] = c->src[0][1] + s->uvlinesize;
678
        c->src[1][2] = c->src[0][2] + s->uvlinesize;
679
    }
680
}
681

    
682
static int interlaced_search(MpegEncContext *s, int ref_index,
683
                             int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
684
{
685
    MotionEstContext * const c= &s->me;
686
    const int size=0;
687
    const int h=8;
688
    int block;
689
    int P[10][2];
690
    uint8_t * const mv_penalty= c->current_mv_penalty;
691
    int same=1;
692
    const int stride= 2*s->linesize;
693
    int dmin_sum= 0;
694
    const int mot_stride= s->mb_stride;
695
    const int xy= s->mb_x + s->mb_y*mot_stride;
696

    
697
    c->ymin>>=1;
698
    c->ymax>>=1;
699
    c->stride<<=1;
700
    c->uvstride<<=1;
701
    init_interlaced_ref(s, ref_index);
702

    
703
    for(block=0; block<2; block++){
704
        int field_select;
705
        int best_dmin= INT_MAX;
706
        int best_field= -1;
707

    
708
        for(field_select=0; field_select<2; field_select++){
709
            int dmin, mx_i, my_i;
710
            int16_t (*mv_table)[2]= mv_tables[block][field_select];
711

    
712
            if(user_field_select){
713
                assert(field_select==0 || field_select==1);
714
                assert(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);
715
                if(field_select_tables[block][xy] != field_select)
716
                    continue;
717
            }
718

    
719
            P_LEFT[0] = mv_table[xy - 1][0];
720
            P_LEFT[1] = mv_table[xy - 1][1];
721
            if(P_LEFT[0]       > (c->xmax<<1)) P_LEFT[0]       = (c->xmax<<1);
722

    
723
            c->pred_x= P_LEFT[0];
724
            c->pred_y= P_LEFT[1];
725

    
726
            if(!s->first_slice_line){
727
                P_TOP[0]      = mv_table[xy - mot_stride][0];
728
                P_TOP[1]      = mv_table[xy - mot_stride][1];
729
                P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
730
                P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
731
                if(P_TOP[1]      > (c->ymax<<1)) P_TOP[1]     = (c->ymax<<1);
732
                if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
733
                if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
734
                if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);
735

    
736
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
737
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
738
            }
739
            P_MV1[0]= mx; //FIXME not correct if block != field_select
740
            P_MV1[1]= my / 2;
741

    
742
            dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);
743

    
744
            dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
745

    
746
            mv_table[xy][0]= mx_i;
747
            mv_table[xy][1]= my_i;
748

    
749
            if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
750
                int dxy;
751

    
752
                //FIXME chroma ME
753
                uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
754
                dxy = ((my_i & 1) << 1) | (mx_i & 1);
755

    
756
                if(s->no_rounding){
757
                    s->dsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref    , stride, h);
758
                }else{
759
                    s->dsp.put_pixels_tab       [size][dxy](c->scratchpad, ref    , stride, h);
760
                }
761
                dmin= s->dsp.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
762
                dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
763
            }else
764
                dmin+= c->mb_penalty_factor; //field_select bits
765

    
766
            dmin += field_select != block; //slightly prefer same field
767

    
768
            if(dmin < best_dmin){
769
                best_dmin= dmin;
770
                best_field= field_select;
771
            }
772
        }
773
        {
774
            int16_t (*mv_table)[2]= mv_tables[block][best_field];
775

    
776
            if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
777
            if(mv_table[xy][1]&1) same=0;
778
            if(mv_table[xy][1]*2 != my) same=0;
779
            if(best_field != block) same=0;
780
        }
781

    
782
        field_select_tables[block][xy]= best_field;
783
        dmin_sum += best_dmin;
784
    }
785

    
786
    c->ymin<<=1;
787
    c->ymax<<=1;
788
    c->stride>>=1;
789
    c->uvstride>>=1;
790

    
791
    if(same)
792
        return INT_MAX;
793

    
794
    switch(c->avctx->mb_cmp&0xFF){
795
    /*case FF_CMP_SSE:
796
        return dmin_sum+ 32*s->qscale*s->qscale;*/
797
    case FF_CMP_RD:
798
        return dmin_sum;
799
    default:
800
        return dmin_sum+ 11*c->mb_penalty_factor;
801
    }
802
}
803

    
804
static void clip_input_mv(MpegEncContext * s, int16_t *mv, int interlaced){
805
    int ymax= s->me.ymax>>interlaced;
806
    int ymin= s->me.ymin>>interlaced;
807

    
808
    if(mv[0] < s->me.xmin) mv[0] = s->me.xmin;
809
    if(mv[0] > s->me.xmax) mv[0] = s->me.xmax;
810
    if(mv[1] <       ymin) mv[1] =       ymin;
811
    if(mv[1] >       ymax) mv[1] =       ymax;
812
}
813

    
814
static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int p_type){
815
    MotionEstContext * const c= &s->me;
816
    Picture *p= s->current_picture_ptr;
817
    int mb_xy= mb_x + mb_y*s->mb_stride;
818
    int xy= 2*mb_x + 2*mb_y*s->b8_stride;
819
    int mb_type= s->current_picture.mb_type[mb_xy];
820
    int flags= c->flags;
821
    int shift= (flags&FLAG_QPEL) + 1;
822
    int mask= (1<<shift)-1;
823
    int x, y, i;
824
    int d=0;
825
    me_cmp_func cmpf= s->dsp.sse[0];
826
    me_cmp_func chroma_cmpf= s->dsp.sse[1];
827

    
828
    if(p_type && USES_LIST(mb_type, 1)){
829
        av_log(c->avctx, AV_LOG_ERROR, "backward motion vector in P frame\n");
830
        return INT_MAX/2;
831
    }
832
    assert(IS_INTRA(mb_type) || USES_LIST(mb_type,0) || USES_LIST(mb_type,1));
833

    
834
    for(i=0; i<4; i++){
835
        int xy= s->block_index[i];
836
        clip_input_mv(s, p->motion_val[0][xy], !!IS_INTERLACED(mb_type));
837
        clip_input_mv(s, p->motion_val[1][xy], !!IS_INTERLACED(mb_type));
838
    }
839

    
840
    if(IS_INTERLACED(mb_type)){
841
        int xy2= xy  + s->b8_stride;
842
        s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
843
        c->stride<<=1;
844
        c->uvstride<<=1;
845

    
846
        if(!(s->flags & CODEC_FLAG_INTERLACED_ME)){
847
            av_log(c->avctx, AV_LOG_ERROR, "Interlaced macroblock selected but interlaced motion estimation disabled\n");
848
            return INT_MAX/2;
849
        }
850

    
851
        if(USES_LIST(mb_type, 0)){
852
            int field_select0= p->ref_index[0][xy ];
853
            int field_select1= p->ref_index[0][xy2];
854
            assert(field_select0==0 ||field_select0==1);
855
            assert(field_select1==0 ||field_select1==1);
856
            init_interlaced_ref(s, 0);
857

    
858
            if(p_type){
859
                s->p_field_select_table[0][mb_xy]= field_select0;
860
                s->p_field_select_table[1][mb_xy]= field_select1;
861
                *(uint32_t*)s->p_field_mv_table[0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
862
                *(uint32_t*)s->p_field_mv_table[1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
863
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER_I;
864
            }else{
865
                s->b_field_select_table[0][0][mb_xy]= field_select0;
866
                s->b_field_select_table[0][1][mb_xy]= field_select1;
867
                *(uint32_t*)s->b_field_mv_table[0][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
868
                *(uint32_t*)s->b_field_mv_table[0][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
869
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_FORWARD_I;
870
            }
871

    
872
            x= p->motion_val[0][xy ][0];
873
            y= p->motion_val[0][xy ][1];
874
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0, 0, cmpf, chroma_cmpf, flags);
875
            x= p->motion_val[0][xy2][0];
876
            y= p->motion_val[0][xy2][1];
877
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1, 1, cmpf, chroma_cmpf, flags);
878
        }
879
        if(USES_LIST(mb_type, 1)){
880
            int field_select0= p->ref_index[1][xy ];
881
            int field_select1= p->ref_index[1][xy2];
882
            assert(field_select0==0 ||field_select0==1);
883
            assert(field_select1==0 ||field_select1==1);
884
            init_interlaced_ref(s, 2);
885

    
886
            s->b_field_select_table[1][0][mb_xy]= field_select0;
887
            s->b_field_select_table[1][1][mb_xy]= field_select1;
888
            *(uint32_t*)s->b_field_mv_table[1][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[1][xy ];
889
            *(uint32_t*)s->b_field_mv_table[1][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[1][xy2];
890
            if(USES_LIST(mb_type, 0)){
891
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BIDIR_I;
892
            }else{
893
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BACKWARD_I;
894
            }
895

    
896
            x= p->motion_val[1][xy ][0];
897
            y= p->motion_val[1][xy ][1];
898
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0+2, 0, cmpf, chroma_cmpf, flags);
899
            x= p->motion_val[1][xy2][0];
900
            y= p->motion_val[1][xy2][1];
901
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1+2, 1, cmpf, chroma_cmpf, flags);
902
            //FIXME bidir scores
903
        }
904
        c->stride>>=1;
905
        c->uvstride>>=1;
906
    }else if(IS_8X8(mb_type)){
907
        if(!(s->flags & CODEC_FLAG_4MV)){
908
            av_log(c->avctx, AV_LOG_ERROR, "4MV macroblock selected but 4MV encoding disabled\n");
909
            return INT_MAX/2;
910
        }
911
        cmpf= s->dsp.sse[1];
912
        chroma_cmpf= s->dsp.sse[1];
913
        init_mv4_ref(c);
914
        for(i=0; i<4; i++){
915
            xy= s->block_index[i];
916
            x= p->motion_val[0][xy][0];
917
            y= p->motion_val[0][xy][1];
918
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 1, 8, i, i, cmpf, chroma_cmpf, flags);
919
        }
920
        s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER4V;
921
    }else{
922
        if(USES_LIST(mb_type, 0)){
923
            if(p_type){
924
                *(uint32_t*)s->p_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
925
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER;
926
            }else if(USES_LIST(mb_type, 1)){
927
                *(uint32_t*)s->b_bidir_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
928
                *(uint32_t*)s->b_bidir_back_mv_table[mb_xy]= *(uint32_t*)p->motion_val[1][xy];
929
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_BIDIR;
930
            }else{
931
                *(uint32_t*)s->b_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
932
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_FORWARD;
933
            }
934
            x= p->motion_val[0][xy][0];
935
            y= p->motion_val[0][xy][1];
936
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 16, 0, 0, cmpf, chroma_cmpf, flags);
937
        }else if(USES_LIST(mb_type, 1)){
938
            *(uint32_t*)s->b_back_mv_table[mb_xy]= *(uint32_t*)p->motion_val[1][xy];
939
            s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_BACKWARD;
940

    
941
            x= p->motion_val[1][xy][0];
942
            y= p->motion_val[1][xy][1];
943
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 16, 2, 0, cmpf, chroma_cmpf, flags);
944
        }else
945
            s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
946
    }
947
    return d;
948
}
949

    
950
void ff_estimate_p_frame_motion(MpegEncContext * s,
951
                                int mb_x, int mb_y)
952
{
953
    MotionEstContext * const c= &s->me;
954
    uint8_t *pix, *ppix;
955
    int sum, mx, my, dmin;
956
    int varc;            ///< the variance of the block (sum of squared (p[y][x]-average))
957
    int vard;            ///< sum of squared differences with the estimated motion vector
958
    int P[10][2];
959
    const int shift= 1+s->quarter_sample;
960
    int mb_type=0;
961
    Picture * const pic= &s->current_picture;
962

    
963
    init_ref(c, s->new_picture.data, s->last_picture.data, NULL, 16*mb_x, 16*mb_y, 0);
964

    
965
    assert(s->quarter_sample==0 || s->quarter_sample==1);
966
    assert(s->linesize == c->stride);
967
    assert(s->uvlinesize == c->uvstride);
968

    
969
    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
970
    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
971
    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
972
    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
973

    
974
    get_limits(s, 16*mb_x, 16*mb_y);
975
    c->skip=0;
976

    
977
    /* intra / predictive decision */
978
    pix = c->src[0][0];
979
    sum = s->dsp.pix_sum(pix, s->linesize);
980
    varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500;
981

    
982
    pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
983
    pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
984
    c->mb_var_sum_temp += (varc+128)>>8;
985

    
986
    if(c->avctx->me_threshold){
987
        vard= check_input_motion(s, mb_x, mb_y, 1);
988

    
989
        if((vard+128)>>8 < c->avctx->me_threshold){
990
            int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
991
            int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
992
            pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
993
            c->mc_mb_var_sum_temp += (vard+128)>>8;
994
            c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
995
            return;
996
        }
997
        if((vard+128)>>8 < c->avctx->mb_threshold)
998
            mb_type= s->mb_type[mb_x + mb_y*s->mb_stride];
999
    }
1000

    
1001
    switch(s->me_method) {
1002
    case ME_ZERO:
1003
    default:
1004
        no_motion_search(s, &mx, &my);
1005
        mx-= mb_x*16;
1006
        my-= mb_y*16;
1007
        dmin = 0;
1008
        break;
1009
    case ME_X1:
1010
    case ME_EPZS:
1011
       {
1012
            const int mot_stride = s->b8_stride;
1013
            const int mot_xy = s->block_index[0];
1014

    
1015
            P_LEFT[0]       = s->current_picture.motion_val[0][mot_xy - 1][0];
1016
            P_LEFT[1]       = s->current_picture.motion_val[0][mot_xy - 1][1];
1017

    
1018
            if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
1019

    
1020
            if(!s->first_slice_line) {
1021
                P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][0];
1022
                P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][1];
1023
                P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
1024
                P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
1025
                if(P_TOP[1]      > (c->ymax<<shift)) P_TOP[1]     = (c->ymax<<shift);
1026
                if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
1027
                if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
1028

    
1029
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1030
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1031

    
1032
                if(s->out_format == FMT_H263){
1033
                    c->pred_x = P_MEDIAN[0];
1034
                    c->pred_y = P_MEDIAN[1];
1035
                }else { /* mpeg1 at least */
1036
                    c->pred_x= P_LEFT[0];
1037
                    c->pred_y= P_LEFT[1];
1038
                }
1039
            }else{
1040
                c->pred_x= P_LEFT[0];
1041
                c->pred_y= P_LEFT[1];
1042
            }
1043

    
1044
        }
1045
        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
1046

    
1047
        break;
1048
    }
1049

    
1050
    /* At this point (mx,my) are full-pell and the relative displacement */
1051
    ppix = c->ref[0][0] + (my * s->linesize) + mx;
1052

    
1053
    vard = s->dsp.sse[0](NULL, pix, ppix, s->linesize, 16);
1054

    
1055
    pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
1056
//    pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
1057
    c->mc_mb_var_sum_temp += (vard+128)>>8;
1058

    
1059
#if 0
1060
    printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",
1061
           varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);
1062
#endif
1063
    if(mb_type){
1064
        int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1065
        int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1066
        c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1067

    
1068
        if(mb_type == CANDIDATE_MB_TYPE_INTER){
1069
            c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1070
            set_p_mv_tables(s, mx, my, 1);
1071
        }else{
1072
            mx <<=shift;
1073
            my <<=shift;
1074
        }
1075
        if(mb_type == CANDIDATE_MB_TYPE_INTER4V){
1076
            h263_mv4_search(s, mx, my, shift);
1077

    
1078
            set_p_mv_tables(s, mx, my, 0);
1079
        }
1080
        if(mb_type == CANDIDATE_MB_TYPE_INTER_I){
1081
            interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 1);
1082
        }
1083
    }else if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
1084
        int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1085
        int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1086
        c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1087

    
1088
        if (vard*2 + 200*256 > varc)
1089
            mb_type|= CANDIDATE_MB_TYPE_INTRA;
1090
        if (varc*2 + 200*256 > vard || s->qscale > 24){
1091
//        if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
1092
            mb_type|= CANDIDATE_MB_TYPE_INTER;
1093
            c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1094
            if(s->flags&CODEC_FLAG_MV0)
1095
                if(mx || my)
1096
                    mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
1097
        }else{
1098
            mx <<=shift;
1099
            my <<=shift;
1100
        }
1101
        if((s->flags&CODEC_FLAG_4MV)
1102
           && !c->skip && varc>50<<8 && vard>10<<8){
1103
            if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
1104
                mb_type|=CANDIDATE_MB_TYPE_INTER4V;
1105

    
1106
            set_p_mv_tables(s, mx, my, 0);
1107
        }else
1108
            set_p_mv_tables(s, mx, my, 1);
1109
        if((s->flags&CODEC_FLAG_INTERLACED_ME)
1110
           && !c->skip){ //FIXME varc/d checks
1111
            if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
1112
                mb_type |= CANDIDATE_MB_TYPE_INTER_I;
1113
        }
1114
    }else{
1115
        int intra_score, i;
1116
        mb_type= CANDIDATE_MB_TYPE_INTER;
1117

    
1118
        dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1119
        if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1120
            dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1121

    
1122
        if((s->flags&CODEC_FLAG_4MV)
1123
           && !c->skip && varc>50<<8 && vard>10<<8){
1124
            int dmin4= h263_mv4_search(s, mx, my, shift);
1125
            if(dmin4 < dmin){
1126
                mb_type= CANDIDATE_MB_TYPE_INTER4V;
1127
                dmin=dmin4;
1128
            }
1129
        }
1130
        if((s->flags&CODEC_FLAG_INTERLACED_ME)
1131
           && !c->skip){ //FIXME varc/d checks
1132
            int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
1133
            if(dmin_i < dmin){
1134
                mb_type = CANDIDATE_MB_TYPE_INTER_I;
1135
                dmin= dmin_i;
1136
            }
1137
        }
1138

    
1139
//        pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
1140
        set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
1141

    
1142
        /* get intra luma score */
1143
        if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
1144
            intra_score= varc - 500;
1145
        }else{
1146
            int mean= (sum+128)>>8;
1147
            mean*= 0x01010101;
1148

    
1149
            for(i=0; i<16; i++){
1150
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;
1151
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;
1152
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;
1153
                *(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;
1154
            }
1155

    
1156
            intra_score= s->dsp.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
1157
        }
1158
#if 0 //FIXME
1159
        /* get chroma score */
1160
        if(c->avctx->mb_cmp&FF_CMP_CHROMA){
1161
            for(i=1; i<3; i++){
1162
                uint8_t *dest_c;
1163
                int mean;
1164

1165
                if(s->out_format == FMT_H263){
1166
                    mean= (s->dc_val[i][mb_x + mb_y*s->b8_stride] + 4)>>3; //FIXME not exact but simple ;)
1167
                }else{
1168
                    mean= (s->last_dc[i] + 4)>>3;
1169
                }
1170
                dest_c = s->new_picture.data[i] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
1171

1172
                mean*= 0x01010101;
1173
                for(i=0; i<8; i++){
1174
                    *(uint32_t*)(&c->scratchpad[i*s->uvlinesize+ 0]) = mean;
1175
                    *(uint32_t*)(&c->scratchpad[i*s->uvlinesize+ 4]) = mean;
1176
                }
1177

1178
                intra_score+= s->dsp.mb_cmp[1](s, c->scratchpad, dest_c, s->uvlinesize);
1179
            }
1180
        }
1181
#endif
1182
        intra_score += c->mb_penalty_factor*16;
1183

    
1184
        if(intra_score < dmin){
1185
            mb_type= CANDIDATE_MB_TYPE_INTRA;
1186
            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
1187
        }else
1188
            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= 0;
1189

    
1190
        {
1191
            int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1192
            int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1193
            c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1194
        }
1195
    }
1196

    
1197
    s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
1198
}
1199

    
1200
int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
1201
                                    int mb_x, int mb_y)
1202
{
1203
    MotionEstContext * const c= &s->me;
1204
    int mx, my, dmin;
1205
    int P[10][2];
1206
    const int shift= 1+s->quarter_sample;
1207
    const int xy= mb_x + mb_y*s->mb_stride;
1208
    init_ref(c, s->new_picture.data, s->last_picture.data, NULL, 16*mb_x, 16*mb_y, 0);
1209

    
1210
    assert(s->quarter_sample==0 || s->quarter_sample==1);
1211

    
1212
    c->pre_penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);
1213
    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1214

    
1215
    get_limits(s, 16*mb_x, 16*mb_y);
1216
    c->skip=0;
1217

    
1218
    P_LEFT[0]       = s->p_mv_table[xy + 1][0];
1219
    P_LEFT[1]       = s->p_mv_table[xy + 1][1];
1220

    
1221
    if(P_LEFT[0]       < (c->xmin<<shift)) P_LEFT[0]       = (c->xmin<<shift);
1222

    
1223
    /* special case for first line */
1224
    if (s->first_slice_line) {
1225
        c->pred_x= P_LEFT[0];
1226
        c->pred_y= P_LEFT[1];
1227
        P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
1228
        P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
1229
    } else {
1230
        P_TOP[0]      = s->p_mv_table[xy + s->mb_stride    ][0];
1231
        P_TOP[1]      = s->p_mv_table[xy + s->mb_stride    ][1];
1232
        P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
1233
        P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
1234
        if(P_TOP[1]      < (c->ymin<<shift)) P_TOP[1]     = (c->ymin<<shift);
1235
        if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
1236
        if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<shift);
1237

    
1238
        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1239
        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1240

    
1241
        c->pred_x = P_MEDIAN[0];
1242
        c->pred_y = P_MEDIAN[1];
1243
    }
1244

    
1245
    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
1246

    
1247
    s->p_mv_table[xy][0] = mx<<shift;
1248
    s->p_mv_table[xy][1] = my<<shift;
1249

    
1250
    return dmin;
1251
}
1252

    
1253
static int ff_estimate_motion_b(MpegEncContext * s,
1254
                       int mb_x, int mb_y, int16_t (*mv_table)[2], int ref_index, int f_code)
1255
{
1256
    MotionEstContext * const c= &s->me;
1257
    int mx, my, dmin;
1258
    int P[10][2];
1259
    const int shift= 1+s->quarter_sample;
1260
    const int mot_stride = s->mb_stride;
1261
    const int mot_xy = mb_y*mot_stride + mb_x;
1262
    uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;
1263
    int mv_scale;
1264

    
1265
    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
1266
    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
1267
    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
1268
    c->current_mv_penalty= mv_penalty;
1269

    
1270
    get_limits(s, 16*mb_x, 16*mb_y);
1271

    
1272
    switch(s->me_method) {
1273
    case ME_ZERO:
1274
    default:
1275
        no_motion_search(s, &mx, &my);
1276
        dmin = 0;
1277
        mx-= mb_x*16;
1278
        my-= mb_y*16;
1279
        break;
1280
    case ME_X1:
1281
    case ME_EPZS:
1282
       {
1283
            P_LEFT[0]        = mv_table[mot_xy - 1][0];
1284
            P_LEFT[1]        = mv_table[mot_xy - 1][1];
1285

    
1286
            if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
1287

    
1288
            /* special case for first line */
1289
            if (!s->first_slice_line) {
1290
                P_TOP[0] = mv_table[mot_xy - mot_stride             ][0];
1291
                P_TOP[1] = mv_table[mot_xy - mot_stride             ][1];
1292
                P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1         ][0];
1293
                P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1         ][1];
1294
                if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1]= (c->ymax<<shift);
1295
                if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
1296
                if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
1297

    
1298
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1299
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1300
            }
1301
            c->pred_x= P_LEFT[0];
1302
            c->pred_y= P_LEFT[1];
1303
        }
1304

    
1305
        if(mv_table == s->b_forw_mv_table){
1306
            mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);
1307
        }else{
1308
            mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);
1309
        }
1310

    
1311
        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
1312

    
1313
        break;
1314
    }
1315

    
1316
    dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
1317

    
1318
    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1319
        dmin= ff_get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
1320

    
1321
//printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my);
1322
//    s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
1323
    mv_table[mot_xy][0]= mx;
1324
    mv_table[mot_xy][1]= my;
1325

    
1326
    return dmin;
1327
}
1328

    
1329
static inline int check_bidir_mv(MpegEncContext * s,
1330
                   int motion_fx, int motion_fy,
1331
                   int motion_bx, int motion_by,
1332
                   int pred_fx, int pred_fy,
1333
                   int pred_bx, int pred_by,
1334
                   int size, int h)
1335
{
1336
    //FIXME optimize?
1337
    //FIXME better f_code prediction (max mv & distance)
1338
    //FIXME pointers
1339
    MotionEstContext * const c= &s->me;
1340
    uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame
1341
    uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_MV; // f_code of the prev frame
1342
    int stride= c->stride;
1343
    uint8_t *dest_y = c->scratchpad;
1344
    uint8_t *ptr;
1345
    int dxy;
1346
    int src_x, src_y;
1347
    int fbmin;
1348
    uint8_t **src_data= c->src[0];
1349
    uint8_t **ref_data= c->ref[0];
1350
    uint8_t **ref2_data= c->ref[2];
1351

    
1352
    if(s->quarter_sample){
1353
        dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
1354
        src_x = motion_fx >> 2;
1355
        src_y = motion_fy >> 2;
1356

    
1357
        ptr = ref_data[0] + (src_y * stride) + src_x;
1358
        s->dsp.put_qpel_pixels_tab[0][dxy](dest_y    , ptr    , stride);
1359

    
1360
        dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
1361
        src_x = motion_bx >> 2;
1362
        src_y = motion_by >> 2;
1363

    
1364
        ptr = ref2_data[0] + (src_y * stride) + src_x;
1365
        s->dsp.avg_qpel_pixels_tab[size][dxy](dest_y    , ptr    , stride);
1366
    }else{
1367
        dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
1368
        src_x = motion_fx >> 1;
1369
        src_y = motion_fy >> 1;
1370

    
1371
        ptr = ref_data[0] + (src_y * stride) + src_x;
1372
        s->dsp.put_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
1373

    
1374
        dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
1375
        src_x = motion_bx >> 1;
1376
        src_y = motion_by >> 1;
1377

    
1378
        ptr = ref2_data[0] + (src_y * stride) + src_x;
1379
        s->dsp.avg_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
1380
    }
1381

    
1382
    fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
1383
           +(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
1384
           + s->dsp.mb_cmp[size](s, src_data[0], dest_y, stride, h); //FIXME new_pic
1385

    
1386
    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
1387
    }
1388
    //FIXME CHROMA !!!
1389

    
1390
    return fbmin;
1391
}
1392

    
1393
/* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
1394
static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)
1395
{
1396
    MotionEstContext * const c= &s->me;
1397
    const int mot_stride = s->mb_stride;
1398
    const int xy = mb_y *mot_stride + mb_x;
1399
    int fbmin;
1400
    int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
1401
    int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
1402
    int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
1403
    int pred_by= s->b_bidir_back_mv_table[xy-1][1];
1404
    int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
1405
    int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
1406
    int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
1407
    int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
1408
    const int flags= c->sub_flags;
1409
    const int qpel= flags&FLAG_QPEL;
1410
    const int shift= 1+qpel;
1411
    const int xmin= c->xmin<<shift;
1412
    const int ymin= c->ymin<<shift;
1413
    const int xmax= c->xmax<<shift;
1414
    const int ymax= c->ymax<<shift;
1415
    uint8_t map[8][8][8][8];
1416

    
1417
    memset(map,0,sizeof(map));
1418
#define BIDIR_MAP(fx,fy,bx,by) \
1419
    map[(motion_fx+fx)&7][(motion_fy+fy)&7][(motion_bx+bx)&7][(motion_by+by)&7]
1420
    BIDIR_MAP(0,0,0,0) = 1;
1421

    
1422
    fbmin= check_bidir_mv(s, motion_fx, motion_fy,
1423
                          motion_bx, motion_by,
1424
                          pred_fx, pred_fy,
1425
                          pred_bx, pred_by,
1426
                          0, 16);
1427

    
1428
    if(s->avctx->bidir_refine){
1429
        int score, end;
1430
#define CHECK_BIDIR(fx,fy,bx,by)\
1431
    if( !BIDIR_MAP(fx,fy,bx,by)\
1432
       &&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\
1433
       &&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\
1434
        BIDIR_MAP(fx,fy,bx,by) = 1;\
1435
        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);\
1436
        if(score < fbmin){\
1437
            fbmin= score;\
1438
            motion_fx+=fx;\
1439
            motion_fy+=fy;\
1440
            motion_bx+=bx;\
1441
            motion_by+=by;\
1442
            end=0;\
1443
        }\
1444
    }
1445
#define CHECK_BIDIR2(a,b,c,d)\
1446
CHECK_BIDIR(a,b,c,d)\
1447
CHECK_BIDIR(-(a),-(b),-(c),-(d))
1448

    
1449
#define CHECK_BIDIRR(a,b,c,d)\
1450
CHECK_BIDIR2(a,b,c,d)\
1451
CHECK_BIDIR2(b,c,d,a)\
1452
CHECK_BIDIR2(c,d,a,b)\
1453
CHECK_BIDIR2(d,a,b,c)
1454

    
1455
        do{
1456
            end=1;
1457

    
1458
            CHECK_BIDIRR( 0, 0, 0, 1)
1459
            if(s->avctx->bidir_refine > 1){
1460
                CHECK_BIDIRR( 0, 0, 1, 1)
1461
                CHECK_BIDIR2( 0, 1, 0, 1)
1462
                CHECK_BIDIR2( 1, 0, 1, 0)
1463
                CHECK_BIDIRR( 0, 0,-1, 1)
1464
                CHECK_BIDIR2( 0,-1, 0, 1)
1465
                CHECK_BIDIR2(-1, 0, 1, 0)
1466
                if(s->avctx->bidir_refine > 2){
1467
                    CHECK_BIDIRR( 0, 1, 1, 1)
1468
                    CHECK_BIDIRR( 0,-1, 1, 1)
1469
                    CHECK_BIDIRR( 0, 1,-1, 1)
1470
                    CHECK_BIDIRR( 0, 1, 1,-1)
1471
                    if(s->avctx->bidir_refine > 3){
1472
                        CHECK_BIDIR2( 1, 1, 1, 1)
1473
                        CHECK_BIDIRR( 1, 1, 1,-1)
1474
                        CHECK_BIDIR2( 1, 1,-1,-1)
1475
                        CHECK_BIDIR2( 1,-1,-1, 1)
1476
                        CHECK_BIDIR2( 1,-1, 1,-1)
1477
                    }
1478
                }
1479
            }
1480
        }while(!end);
1481
    }
1482

    
1483
    s->b_bidir_forw_mv_table[xy][0]= motion_fx;
1484
    s->b_bidir_forw_mv_table[xy][1]= motion_fy;
1485
    s->b_bidir_back_mv_table[xy][0]= motion_bx;
1486
    s->b_bidir_back_mv_table[xy][1]= motion_by;
1487

    
1488
    return fbmin;
1489
}
1490

    
1491
static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
1492
{
1493
    MotionEstContext * const c= &s->me;
1494
    int P[10][2];
1495
    const int mot_stride = s->mb_stride;
1496
    const int mot_xy = mb_y*mot_stride + mb_x;
1497
    const int shift= 1+s->quarter_sample;
1498
    int dmin, i;
1499
    const int time_pp= s->pp_time;
1500
    const int time_pb= s->pb_time;
1501
    int mx, my, xmin, xmax, ymin, ymax;
1502
    int16_t (*mv_table)[2]= s->b_direct_mv_table;
1503

    
1504
    c->current_mv_penalty= c->mv_penalty[1] + MAX_MV;
1505
    ymin= xmin=(-32)>>shift;
1506
    ymax= xmax=   31>>shift;
1507

    
1508
    if(IS_8X8(s->next_picture.mb_type[mot_xy])){
1509
        s->mv_type= MV_TYPE_8X8;
1510
    }else{
1511
        s->mv_type= MV_TYPE_16X16;
1512
    }
1513

    
1514
    for(i=0; i<4; i++){
1515
        int index= s->block_index[i];
1516
        int min, max;
1517

    
1518
        c->co_located_mv[i][0]= s->next_picture.motion_val[0][index][0];
1519
        c->co_located_mv[i][1]= s->next_picture.motion_val[0][index][1];
1520
        c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
1521
        c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
1522
//        c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
1523
//        c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
1524

    
1525
        max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1526
        min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1527
        max+= 16*mb_x + 1; // +-1 is for the simpler rounding
1528
        min+= 16*mb_x - 1;
1529
        xmax= FFMIN(xmax, s->width - max);
1530
        xmin= FFMAX(xmin, - 16     - min);
1531

    
1532
        max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1533
        min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1534
        max+= 16*mb_y + 1; // +-1 is for the simpler rounding
1535
        min+= 16*mb_y - 1;
1536
        ymax= FFMIN(ymax, s->height - max);
1537
        ymin= FFMAX(ymin, - 16      - min);
1538

    
1539
        if(s->mv_type == MV_TYPE_16X16) break;
1540
    }
1541

    
1542
    assert(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
1543

    
1544
    if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){
1545
        s->b_direct_mv_table[mot_xy][0]= 0;
1546
        s->b_direct_mv_table[mot_xy][1]= 0;
1547

    
1548
        return 256*256*256*64;
1549
    }
1550

    
1551
    c->xmin= xmin;
1552
    c->ymin= ymin;
1553
    c->xmax= xmax;
1554
    c->ymax= ymax;
1555
    c->flags     |= FLAG_DIRECT;
1556
    c->sub_flags |= FLAG_DIRECT;
1557
    c->pred_x=0;
1558
    c->pred_y=0;
1559

    
1560
    P_LEFT[0]        = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);
1561
    P_LEFT[1]        = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
1562

    
1563
    /* special case for first line */
1564
    if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
1565
        P_TOP[0]      = av_clip(mv_table[mot_xy - mot_stride             ][0], xmin<<shift, xmax<<shift);
1566
        P_TOP[1]      = av_clip(mv_table[mot_xy - mot_stride             ][1], ymin<<shift, ymax<<shift);
1567
        P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1         ][0], xmin<<shift, xmax<<shift);
1568
        P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1         ][1], ymin<<shift, ymax<<shift);
1569

    
1570
        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1571
        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1572
    }
1573

    
1574
    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
1575
    if(c->sub_flags&FLAG_QPEL)
1576
        dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1577
    else
1578
        dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1579

    
1580
    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1581
        dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1582

    
1583
    get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed
1584

    
1585
    mv_table[mot_xy][0]= mx;
1586
    mv_table[mot_xy][1]= my;
1587
    c->flags     &= ~FLAG_DIRECT;
1588
    c->sub_flags &= ~FLAG_DIRECT;
1589

    
1590
    return dmin;
1591
}
1592

    
1593
void ff_estimate_b_frame_motion(MpegEncContext * s,
1594
                             int mb_x, int mb_y)
1595
{
1596
    MotionEstContext * const c= &s->me;
1597
    const int penalty_factor= c->mb_penalty_factor;
1598
    int fmin, bmin, dmin, fbmin, bimin, fimin;
1599
    int type=0;
1600
    const int xy = mb_y*s->mb_stride + mb_x;
1601
    init_ref(c, s->new_picture.data, s->last_picture.data, s->next_picture.data, 16*mb_x, 16*mb_y, 2);
1602

    
1603
    get_limits(s, 16*mb_x, 16*mb_y);
1604

    
1605
    c->skip=0;
1606

    
1607
    if(s->codec_id == CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]){
1608
        int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
1609

    
1610
        score= ((unsigned)(score*score + 128*256))>>16;
1611
        c->mc_mb_var_sum_temp += score;
1612
        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1613
        s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
1614

    
1615
        return;
1616
    }
1617

    
1618
    if(c->avctx->me_threshold){
1619
        int vard= check_input_motion(s, mb_x, mb_y, 0);
1620

    
1621
        if((vard+128)>>8 < c->avctx->me_threshold){
1622
//            pix = c->src[0][0];
1623
//            sum = s->dsp.pix_sum(pix, s->linesize);
1624
//            varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500;
1625

    
1626
//            pic->mb_var   [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
1627
             s->current_picture.mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
1628
/*            pic->mb_mean  [s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1629
            c->mb_var_sum_temp    += (varc+128)>>8;*/
1630
            c->mc_mb_var_sum_temp += (vard+128)>>8;
1631
/*            if (vard <= 64<<8 || vard < varc) {
1632
                c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
1633
            }else{
1634
                c->scene_change_score+= s->qscale * s->avctx->scenechange_factor;
1635
            }*/
1636
            return;
1637
        }
1638
        if((vard+128)>>8 < c->avctx->mb_threshold){
1639
            type= s->mb_type[mb_y*s->mb_stride + mb_x];
1640
            if(type == CANDIDATE_MB_TYPE_DIRECT){
1641
                direct_search(s, mb_x, mb_y);
1642
            }
1643
            if(type == CANDIDATE_MB_TYPE_FORWARD || type == CANDIDATE_MB_TYPE_BIDIR){
1644
                c->skip=0;
1645
                ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code);
1646
            }
1647
            if(type == CANDIDATE_MB_TYPE_BACKWARD || type == CANDIDATE_MB_TYPE_BIDIR){
1648
                c->skip=0;
1649
                ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code);
1650
            }
1651
            if(type == CANDIDATE_MB_TYPE_FORWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
1652
                c->skip=0;
1653
                c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1654
                interlaced_search(s, 0,
1655
                                        s->b_field_mv_table[0], s->b_field_select_table[0],
1656
                                        s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 1);
1657
            }
1658
            if(type == CANDIDATE_MB_TYPE_BACKWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
1659
                c->skip=0;
1660
                c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
1661
                interlaced_search(s, 2,
1662
                                        s->b_field_mv_table[1], s->b_field_select_table[1],
1663
                                        s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 1);
1664
            }
1665
            return;
1666
        }
1667
    }
1668

    
1669
    if (s->codec_id == CODEC_ID_MPEG4)
1670
        dmin= direct_search(s, mb_x, mb_y);
1671
    else
1672
        dmin= INT_MAX;
1673
//FIXME penalty stuff for non mpeg4
1674
    c->skip=0;
1675
    fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) + 3*penalty_factor;
1676

    
1677
    c->skip=0;
1678
    bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) + 2*penalty_factor;
1679
//printf(" %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
1680

    
1681
    c->skip=0;
1682
    fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
1683
//printf("%d %d %d %d\n", dmin, fmin, bmin, fbmin);
1684

    
1685
    if(s->flags & CODEC_FLAG_INTERLACED_ME){
1686
//FIXME mb type penalty
1687
        c->skip=0;
1688
        c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1689
        fimin= interlaced_search(s, 0,
1690
                                 s->b_field_mv_table[0], s->b_field_select_table[0],
1691
                                 s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
1692
        c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
1693
        bimin= interlaced_search(s, 2,
1694
                                 s->b_field_mv_table[1], s->b_field_select_table[1],
1695
                                 s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
1696
    }else
1697
        fimin= bimin= INT_MAX;
1698

    
1699
    {
1700
        int score= fmin;
1701
        type = CANDIDATE_MB_TYPE_FORWARD;
1702

    
1703
        if (dmin <= score){
1704
            score = dmin;
1705
            type = CANDIDATE_MB_TYPE_DIRECT;
1706
        }
1707
        if(bmin<score){
1708
            score=bmin;
1709
            type= CANDIDATE_MB_TYPE_BACKWARD;
1710
        }
1711
        if(fbmin<score){
1712
            score=fbmin;
1713
            type= CANDIDATE_MB_TYPE_BIDIR;
1714
        }
1715
        if(fimin<score){
1716
            score=fimin;
1717
            type= CANDIDATE_MB_TYPE_FORWARD_I;
1718
        }
1719
        if(bimin<score){
1720
            score=bimin;
1721
            type= CANDIDATE_MB_TYPE_BACKWARD_I;
1722
        }
1723

    
1724
        score= ((unsigned)(score*score + 128*256))>>16;
1725
        c->mc_mb_var_sum_temp += score;
1726
        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1727
    }
1728

    
1729
    if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
1730
        type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;
1731
        if(fimin < INT_MAX)
1732
            type |= CANDIDATE_MB_TYPE_FORWARD_I;
1733
        if(bimin < INT_MAX)
1734
            type |= CANDIDATE_MB_TYPE_BACKWARD_I;
1735
        if(fimin < INT_MAX && bimin < INT_MAX){
1736
            type |= CANDIDATE_MB_TYPE_BIDIR_I;
1737
        }
1738
         //FIXME something smarter
1739
        if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
1740
        if(s->codec_id == CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT && s->flags&CODEC_FLAG_MV0 && *(uint32_t*)s->b_direct_mv_table[xy])
1741
            type |= CANDIDATE_MB_TYPE_DIRECT0;
1742
#if 0
1743
        if(s->out_format == FMT_MPEG1)
1744
            type |= CANDIDATE_MB_TYPE_INTRA;
1745
#endif
1746
    }
1747

    
1748
    s->mb_type[mb_y*s->mb_stride + mb_x]= type;
1749
}
1750

    
1751
/* find best f_code for ME which do unlimited searches */
1752
int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
1753
{
1754
    if(s->me_method>=ME_EPZS){
1755
        int score[8];
1756
        int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
1757
        uint8_t * fcode_tab= s->fcode_tab;
1758
        int best_fcode=-1;
1759
        int best_score=-10000000;
1760

    
1761
        if(s->msmpeg4_version)
1762
            range= FFMIN(range, 16);
1763
        else if(s->codec_id == CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)
1764
            range= FFMIN(range, 256);
1765

    
1766
        for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
1767

    
1768
        for(y=0; y<s->mb_height; y++){
1769
            int x;
1770
            int xy= y*s->mb_stride;
1771
            for(x=0; x<s->mb_width; x++){
1772
                if(s->mb_type[xy] & type){
1773
                    int mx= mv_table[xy][0];
1774
                    int my= mv_table[xy][1];
1775
                    int fcode= FFMAX(fcode_tab[mx + MAX_MV],
1776
                                     fcode_tab[my + MAX_MV]);
1777
                    int j;
1778

    
1779
                        if(mx >= range || mx < -range ||
1780
                           my >= range || my < -range)
1781
                            continue;
1782

    
1783
                    for(j=0; j<fcode && j<8; j++){
1784
                        if(s->pict_type==FF_B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
1785
                            score[j]-= 170;
1786
                    }
1787
                }
1788
                xy++;
1789
            }
1790
        }
1791

    
1792
        for(i=1; i<8; i++){
1793
            if(score[i] > best_score){
1794
                best_score= score[i];
1795
                best_fcode= i;
1796
            }
1797
//            printf("%d %d\n", i, score[i]);
1798
        }
1799

    
1800
//    printf("fcode: %d type: %d\n", i, s->pict_type);
1801
        return best_fcode;
1802
/*        for(i=0; i<=MAX_FCODE; i++){
1803
            printf("%d ", mv_num[i]);
1804
        }
1805
        printf("\n");*/
1806
    }else{
1807
        return 1;
1808
    }
1809
}
1810

    
1811
void ff_fix_long_p_mvs(MpegEncContext * s)
1812
{
1813
    MotionEstContext * const c= &s->me;
1814
    const int f_code= s->f_code;
1815
    int y, range;
1816
    assert(s->pict_type==FF_P_TYPE);
1817

    
1818
    range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1819

    
1820
    assert(range <= 16 || !s->msmpeg4_version);
1821
    assert(range <=256 || !(s->codec_id == CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));
1822

    
1823
    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1824

    
1825
//printf("%d no:%d %d//\n", clip, noclip, f_code);
1826
    if(s->flags&CODEC_FLAG_4MV){
1827
        const int wrap= s->b8_stride;
1828

    
1829
        /* clip / convert to intra 8x8 type MVs */
1830
        for(y=0; y<s->mb_height; y++){
1831
            int xy= y*2*wrap;
1832
            int i= y*s->mb_stride;
1833
            int x;
1834

    
1835
            for(x=0; x<s->mb_width; x++){
1836
                if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){
1837
                    int block;
1838
                    for(block=0; block<4; block++){
1839
                        int off= (block& 1) + (block>>1)*wrap;
1840
                        int mx= s->current_picture.motion_val[0][ xy + off ][0];
1841
                        int my= s->current_picture.motion_val[0][ xy + off ][1];
1842

    
1843
                        if(   mx >=range || mx <-range
1844
                           || my >=range || my <-range){
1845
                            s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
1846
                            s->mb_type[i] |= CANDIDATE_MB_TYPE_INTRA;
1847
                            s->current_picture.mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
1848
                        }
1849
                    }
1850
                }
1851
                xy+=2;
1852
                i++;
1853
            }
1854
        }
1855
    }
1856
}
1857

    
1858
/**
1859
 *
1860
 * @param truncate 1 for truncation, 0 for using intra
1861
 */
1862
void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
1863
                     int16_t (*mv_table)[2], int f_code, int type, int truncate)
1864
{
1865
    MotionEstContext * const c= &s->me;
1866
    int y, h_range, v_range;
1867

    
1868
    // RAL: 8 in MPEG-1, 16 in MPEG-4
1869
    int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1870

    
1871
    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1872

    
1873
    h_range= range;
1874
    v_range= field_select_table ? range>>1 : range;
1875

    
1876
    /* clip / convert to intra 16x16 type MVs */
1877
    for(y=0; y<s->mb_height; y++){
1878
        int x;
1879
        int xy= y*s->mb_stride;
1880
        for(x=0; x<s->mb_width; x++){
1881
            if (s->mb_type[xy] & type){    // RAL: "type" test added...
1882
                if(field_select_table==NULL || field_select_table[xy] == field_select){
1883
                    if(   mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range
1884
                       || mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){
1885

    
1886
                        if(truncate){
1887
                            if     (mv_table[xy][0] > h_range-1) mv_table[xy][0]=  h_range-1;
1888
                            else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
1889
                            if     (mv_table[xy][1] > v_range-1) mv_table[xy][1]=  v_range-1;
1890
                            else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
1891
                        }else{
1892
                            s->mb_type[xy] &= ~type;
1893
                            s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;
1894
                            mv_table[xy][0]=
1895
                            mv_table[xy][1]= 0;
1896
                        }
1897
                    }
1898
                }
1899
            }
1900
            xy++;
1901
        }
1902
    }
1903
}