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ffmpeg / libavcodec / motion_est.c @ a6f2c0d6

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/*
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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 "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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}
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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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}
98

    
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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)
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           + (direct ? FLAG_DIRECT : 0)
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           + (chroma ? FLAG_CHROMA : 0);
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}
104

    
105
/*! \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;
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            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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139
                    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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                }
148
            }else{
149
                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);
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                int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
154
                int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
155

    
156
                if(qpel){
157
                    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);
165
                }else{
166
                    assert((fx>>1) + 16*s->mb_x >= -16);
167
                    assert((fy>>1) + 16*s->mb_y >= -16);
168
                    assert((fx>>1) + 16*s->mb_x <= s->width);
169
                    assert((fy>>1) + 16*s->mb_y <= s->height);
170
                    assert((bx>>1) + 16*s->mb_x >= -16);
171
                    assert((by>>1) + 16*s->mb_y >= -16);
172
                    assert((bx>>1) + 16*s->mb_x <= s->width);
173
                    assert((by>>1) + 16*s->mb_y <= s->height);
174

    
175
                    c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
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                    c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
177
                }
178
            }
179
            d = cmp_func(s, c->temp, src[0], stride, 16);
180
        }else
181
            d= 256*256*256*32;
182
    }else{
183
        int uvdxy;              /* no, it might not be used uninitialized */
184
        if(dxy){
185
            if(qpel){
186
                c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
187
                if(chroma){
188
                    int cx= hx/2;
189
                    int cy= hy/2;
190
                    cx= (cx>>1)|(cx&1);
191
                    cy= (cy>>1)|(cy&1);
192
                    uvdxy= (cx&1) + 2*(cy&1);
193
                    //FIXME x/y wrong, but mpeg4 qpel is sick anyway, we should drop as much of it as possible in favor for h264
194
                }
195
            }else{
196
                c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
197
                if(chroma)
198
                    uvdxy= dxy | (x&1) | (2*(y&1));
199
            }
200
            d = cmp_func(s, c->temp, src[0], stride, h);
201
        }else{
202
            d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
203
            if(chroma)
204
                uvdxy= (x&1) + 2*(y&1);
205
        }
206
        if(chroma){
207
            uint8_t * const uvtemp= c->temp + 16*stride;
208
            c->hpel_put[size+1][uvdxy](uvtemp  , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
209
            c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
210
            d += chroma_cmp_func(s, uvtemp  , src[1], uvstride, h>>1);
211
            d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
212
        }
213
    }
214
#if 0
215
    if(full_pel){
216
        const int index= (((y)<<ME_MAP_SHIFT) + (x))&(ME_MAP_SIZE-1);
217
        score_map[index]= d;
218
    }
219

220
    d += (c->mv_penalty[hx - c->pred_x] + c->mv_penalty[hy - c->pred_y])*c->penalty_factor;
221
#endif
222
    return d;
223
}
224

    
225
#include "motion_est_template.c"
226

    
227
static int zero_cmp(void *s, uint8_t *a, uint8_t *b, int stride, int h){
228
    return 0;
229
}
230

    
231
static void zero_hpel(uint8_t *a, const uint8_t *b, int stride, int h){
232
}
233

    
234
int ff_init_me(MpegEncContext *s){
235
    MotionEstContext * const c= &s->me;
236
    int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT);
237
    int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
238

    
239
    if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -ME_MAP_SIZE){
240
        av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
241
        return -1;
242
    }
243
    //special case of snow is needed because snow uses its own iterative ME code
244
    if(s->me_method!=ME_ZERO && s->me_method!=ME_EPZS && s->me_method!=ME_X1 && s->avctx->codec_id != CODEC_ID_SNOW){
245
        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");
246
        return -1;
247
    }
248

    
249
    c->avctx= s->avctx;
250

    
251
    if(cache_size < 2*dia_size && !c->stride){
252
        av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
253
    }
254

    
255
    ff_set_cmp(&s->dsp, s->dsp.me_pre_cmp, c->avctx->me_pre_cmp);
256
    ff_set_cmp(&s->dsp, s->dsp.me_cmp, c->avctx->me_cmp);
257
    ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, c->avctx->me_sub_cmp);
258
    ff_set_cmp(&s->dsp, s->dsp.mb_cmp, c->avctx->mb_cmp);
259

    
260
    c->flags    = get_flags(c, 0, c->avctx->me_cmp    &FF_CMP_CHROMA);
261
    c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);
262
    c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp    &FF_CMP_CHROMA);
263

    
264
/*FIXME s->no_rounding b_type*/
265
    if(s->flags&CODEC_FLAG_QPEL){
266
        c->sub_motion_search= qpel_motion_search;
267
        c->qpel_avg= s->dsp.avg_qpel_pixels_tab;
268
        if(s->no_rounding) c->qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;
269
        else               c->qpel_put= s->dsp.put_qpel_pixels_tab;
270
    }else{
271
        if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)
272
            c->sub_motion_search= hpel_motion_search;
273
        else if(   c->avctx->me_sub_cmp == FF_CMP_SAD
274
                && c->avctx->    me_cmp == FF_CMP_SAD
275
                && c->avctx->    mb_cmp == FF_CMP_SAD)
276
            c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
277
        else
278
            c->sub_motion_search= hpel_motion_search;
279
    }
280
    c->hpel_avg= s->dsp.avg_pixels_tab;
281
    if(s->no_rounding) c->hpel_put= s->dsp.put_no_rnd_pixels_tab;
282
    else               c->hpel_put= s->dsp.put_pixels_tab;
283

    
284
    if(s->linesize){
285
        c->stride  = s->linesize;
286
        c->uvstride= s->uvlinesize;
287
    }else{
288
        c->stride  = 16*s->mb_width + 32;
289
        c->uvstride=  8*s->mb_width + 16;
290
    }
291

    
292
    /* 8x8 fullpel search would need a 4x4 chroma compare, which we do
293
     * not have yet, and even if we had, the motion estimation code
294
     * does not expect it. */
295
    if(s->codec_id != CODEC_ID_SNOW){
296
        if((c->avctx->me_cmp&FF_CMP_CHROMA)/* && !s->dsp.me_cmp[2]*/){
297
            s->dsp.me_cmp[2]= zero_cmp;
298
        }
299
        if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){
300
            s->dsp.me_sub_cmp[2]= zero_cmp;
301
        }
302
        c->hpel_put[2][0]= c->hpel_put[2][1]=
303
        c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
304
    }
305

    
306
    if(s->codec_id == CODEC_ID_H261){
307
        c->sub_motion_search= no_sub_motion_search;
308
    }
309

    
310
    return 0;
311
}
312

    
313
#if 0
314
static int pix_dev(uint8_t * pix, int line_size, int mean)
315
{
316
    int s, i, j;
317

318
    s = 0;
319
    for (i = 0; i < 16; i++) {
320
        for (j = 0; j < 16; j += 8) {
321
            s += FFABS(pix[0]-mean);
322
            s += FFABS(pix[1]-mean);
323
            s += FFABS(pix[2]-mean);
324
            s += FFABS(pix[3]-mean);
325
            s += FFABS(pix[4]-mean);
326
            s += FFABS(pix[5]-mean);
327
            s += FFABS(pix[6]-mean);
328
            s += FFABS(pix[7]-mean);
329
            pix += 8;
330
        }
331
        pix += line_size - 16;
332
    }
333
    return s;
334
}
335
#endif
336

    
337
static inline void no_motion_search(MpegEncContext * s,
338
                                    int *mx_ptr, int *my_ptr)
339
{
340
    *mx_ptr = 16 * s->mb_x;
341
    *my_ptr = 16 * s->mb_y;
342
}
343

    
344
#define Z_THRESHOLD 256
345

    
346
#define CHECK_SAD_HALF_MV(suffix, x, y) \
347
{\
348
    d= s->dsp.pix_abs[size][(x?1:0)+(y?2:0)](NULL, pix, ptr+((x)>>1), stride, h);\
349
    d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
350
    COPY3_IF_LT(dminh, d, dx, x, dy, y)\
351
}
352

    
353
static inline int sad_hpel_motion_search(MpegEncContext * s,
354
                                  int *mx_ptr, int *my_ptr, int dmin,
355
                                  int src_index, int ref_index,
356
                                  int size, int h)
357
{
358
    MotionEstContext * const c= &s->me;
359
    const int penalty_factor= c->sub_penalty_factor;
360
    int mx, my, dminh;
361
    uint8_t *pix, *ptr;
362
    int stride= c->stride;
363
    const int flags= c->sub_flags;
364
    LOAD_COMMON
365

    
366
    assert(flags == 0);
367

    
368
    if(c->skip){
369
//    printf("S");
370
        *mx_ptr = 0;
371
        *my_ptr = 0;
372
        return dmin;
373
    }
374
//    printf("N");
375

    
376
    pix = c->src[src_index][0];
377

    
378
    mx = *mx_ptr;
379
    my = *my_ptr;
380
    ptr = c->ref[ref_index][0] + (my * stride) + mx;
381

    
382
    dminh = dmin;
383

    
384
    if (mx > xmin && mx < xmax &&
385
        my > ymin && my < ymax) {
386
        int dx=0, dy=0;
387
        int d, pen_x, pen_y;
388
        const int index= (my<<ME_MAP_SHIFT) + mx;
389
        const int t= score_map[(index-(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
390
        const int l= score_map[(index- 1               )&(ME_MAP_SIZE-1)];
391
        const int r= score_map[(index+ 1               )&(ME_MAP_SIZE-1)];
392
        const int b= score_map[(index+(1<<ME_MAP_SHIFT))&(ME_MAP_SIZE-1)];
393
        mx<<=1;
394
        my<<=1;
395

    
396

    
397
        pen_x= pred_x + mx;
398
        pen_y= pred_y + my;
399

    
400
        ptr-= stride;
401
        if(t<=b){
402
            CHECK_SAD_HALF_MV(y2 , 0, -1)
403
            if(l<=r){
404
                CHECK_SAD_HALF_MV(xy2, -1, -1)
405
                if(t+r<=b+l){
406
                    CHECK_SAD_HALF_MV(xy2, +1, -1)
407
                    ptr+= stride;
408
                }else{
409
                    ptr+= stride;
410
                    CHECK_SAD_HALF_MV(xy2, -1, +1)
411
                }
412
                CHECK_SAD_HALF_MV(x2 , -1,  0)
413
            }else{
414
                CHECK_SAD_HALF_MV(xy2, +1, -1)
415
                if(t+l<=b+r){
416
                    CHECK_SAD_HALF_MV(xy2, -1, -1)
417
                    ptr+= stride;
418
                }else{
419
                    ptr+= stride;
420
                    CHECK_SAD_HALF_MV(xy2, +1, +1)
421
                }
422
                CHECK_SAD_HALF_MV(x2 , +1,  0)
423
            }
424
        }else{
425
            if(l<=r){
426
                if(t+l<=b+r){
427
                    CHECK_SAD_HALF_MV(xy2, -1, -1)
428
                    ptr+= stride;
429
                }else{
430
                    ptr+= stride;
431
                    CHECK_SAD_HALF_MV(xy2, +1, +1)
432
                }
433
                CHECK_SAD_HALF_MV(x2 , -1,  0)
434
                CHECK_SAD_HALF_MV(xy2, -1, +1)
435
            }else{
436
                if(t+r<=b+l){
437
                    CHECK_SAD_HALF_MV(xy2, +1, -1)
438
                    ptr+= stride;
439
                }else{
440
                    ptr+= stride;
441
                    CHECK_SAD_HALF_MV(xy2, -1, +1)
442
                }
443
                CHECK_SAD_HALF_MV(x2 , +1,  0)
444
                CHECK_SAD_HALF_MV(xy2, +1, +1)
445
            }
446
            CHECK_SAD_HALF_MV(y2 ,  0, +1)
447
        }
448
        mx+=dx;
449
        my+=dy;
450

    
451
    }else{
452
        mx<<=1;
453
        my<<=1;
454
    }
455

    
456
    *mx_ptr = mx;
457
    *my_ptr = my;
458
    return dminh;
459
}
460

    
461
static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
462
{
463
    const int xy= s->mb_x + s->mb_y*s->mb_stride;
464

    
465
    s->p_mv_table[xy][0] = mx;
466
    s->p_mv_table[xy][1] = my;
467

    
468
    /* has already been set to the 4 MV if 4MV is done */
469
    if(mv4){
470
        int mot_xy= s->block_index[0];
471

    
472
        s->current_picture.motion_val[0][mot_xy  ][0]= mx;
473
        s->current_picture.motion_val[0][mot_xy  ][1]= my;
474
        s->current_picture.motion_val[0][mot_xy+1][0]= mx;
475
        s->current_picture.motion_val[0][mot_xy+1][1]= my;
476

    
477
        mot_xy += s->b8_stride;
478
        s->current_picture.motion_val[0][mot_xy  ][0]= mx;
479
        s->current_picture.motion_val[0][mot_xy  ][1]= my;
480
        s->current_picture.motion_val[0][mot_xy+1][0]= mx;
481
        s->current_picture.motion_val[0][mot_xy+1][1]= my;
482
    }
483
}
484

    
485
/**
486
 * get fullpel ME search limits.
487
 */
488
static inline void get_limits(MpegEncContext *s, int x, int y)
489
{
490
    MotionEstContext * const c= &s->me;
491
    int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
492
/*
493
    if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
494
    else                   c->range= 16;
495
*/
496
    if (s->unrestricted_mv) {
497
        c->xmin = - x - 16;
498
        c->ymin = - y - 16;
499
        c->xmax = - x + s->mb_width *16;
500
        c->ymax = - y + s->mb_height*16;
501
    } else if (s->out_format == FMT_H261){
502
        // Search range of H261 is different from other codec standards
503
        c->xmin = (x > 15) ? - 15 : 0;
504
        c->ymin = (y > 15) ? - 15 : 0;
505
        c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
506
        c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
507
    } else {
508
        c->xmin = - x;
509
        c->ymin = - y;
510
        c->xmax = - x + s->mb_width *16 - 16;
511
        c->ymax = - y + s->mb_height*16 - 16;
512
    }
513
    if(range){
514
        c->xmin = FFMAX(c->xmin,-range);
515
        c->xmax = FFMIN(c->xmax, range);
516
        c->ymin = FFMAX(c->ymin,-range);
517
        c->ymax = FFMIN(c->ymax, range);
518
    }
519
}
520

    
521
static inline void init_mv4_ref(MotionEstContext *c){
522
    const int stride= c->stride;
523

    
524
    c->ref[1][0] = c->ref[0][0] + 8;
525
    c->ref[2][0] = c->ref[0][0] + 8*stride;
526
    c->ref[3][0] = c->ref[2][0] + 8;
527
    c->src[1][0] = c->src[0][0] + 8;
528
    c->src[2][0] = c->src[0][0] + 8*stride;
529
    c->src[3][0] = c->src[2][0] + 8;
530
}
531

    
532
static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
533
{
534
    MotionEstContext * const c= &s->me;
535
    const int size= 1;
536
    const int h=8;
537
    int block;
538
    int P[10][2];
539
    int dmin_sum=0, mx4_sum=0, my4_sum=0;
540
    int same=1;
541
    const int stride= c->stride;
542
    uint8_t *mv_penalty= c->current_mv_penalty;
543

    
544
    init_mv4_ref(c);
545

    
546
    for(block=0; block<4; block++){
547
        int mx4, my4;
548
        int pred_x4, pred_y4;
549
        int dmin4;
550
        static const int off[4]= {2, 1, 1, -1};
551
        const int mot_stride = s->b8_stride;
552
        const int mot_xy = s->block_index[block];
553

    
554
        P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
555
        P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
556

    
557
        if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
558

    
559
        /* special case for first line */
560
        if (s->first_slice_line && block<2) {
561
            c->pred_x= pred_x4= P_LEFT[0];
562
            c->pred_y= pred_y4= P_LEFT[1];
563
        } else {
564
            P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][0];
565
            P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride             ][1];
566
            P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
567
            P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
568
            if(P_TOP[1]      > (c->ymax<<shift)) P_TOP[1]     = (c->ymax<<shift);
569
            if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
570
            if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
571
            if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
572

    
573
            P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
574
            P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
575

    
576
            c->pred_x= pred_x4 = P_MEDIAN[0];
577
            c->pred_y= pred_y4 = P_MEDIAN[1];
578
        }
579
        P_MV1[0]= mx;
580
        P_MV1[1]= my;
581

    
582
        dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);
583

    
584
        dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
585

    
586
        if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
587
            int dxy;
588
            const int offset= ((block&1) + (block>>1)*stride)*8;
589
            uint8_t *dest_y = c->scratchpad + offset;
590
            if(s->quarter_sample){
591
                uint8_t *ref= c->ref[block][0] + (mx4>>2) + (my4>>2)*stride;
592
                dxy = ((my4 & 3) << 2) | (mx4 & 3);
593

    
594
                if(s->no_rounding)
595
                    s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y   , ref    , stride);
596
                else
597
                    s->dsp.put_qpel_pixels_tab       [1][dxy](dest_y   , ref    , stride);
598
            }else{
599
                uint8_t *ref= c->ref[block][0] + (mx4>>1) + (my4>>1)*stride;
600
                dxy = ((my4 & 1) << 1) | (mx4 & 1);
601

    
602
                if(s->no_rounding)
603
                    s->dsp.put_no_rnd_pixels_tab[1][dxy](dest_y    , ref    , stride, h);
604
                else
605
                    s->dsp.put_pixels_tab       [1][dxy](dest_y    , ref    , stride, h);
606
            }
607
            dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
608
        }else
609
            dmin_sum+= dmin4;
610

    
611
        if(s->quarter_sample){
612
            mx4_sum+= mx4/2;
613
            my4_sum+= my4/2;
614
        }else{
615
            mx4_sum+= mx4;
616
            my4_sum+= my4;
617
        }
618

    
619
        s->current_picture.motion_val[0][ s->block_index[block] ][0]= mx4;
620
        s->current_picture.motion_val[0][ s->block_index[block] ][1]= my4;
621

    
622
        if(mx4 != mx || my4 != my) same=0;
623
    }
624

    
625
    if(same)
626
        return INT_MAX;
627

    
628
    if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
629
        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);
630
    }
631

    
632
    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
633
        int dxy;
634
        int mx, my;
635
        int offset;
636

    
637
        mx= ff_h263_round_chroma(mx4_sum);
638
        my= ff_h263_round_chroma(my4_sum);
639
        dxy = ((my & 1) << 1) | (mx & 1);
640

    
641
        offset= (s->mb_x*8 + (mx>>1)) + (s->mb_y*8 + (my>>1))*s->uvlinesize;
642

    
643
        if(s->no_rounding){
644
            s->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);
645
            s->dsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);
646
        }else{
647
            s->dsp.put_pixels_tab       [1][dxy](c->scratchpad    , s->last_picture.data[1] + offset, s->uvlinesize, 8);
648
            s->dsp.put_pixels_tab       [1][dxy](c->scratchpad+8  , s->last_picture.data[2] + offset, s->uvlinesize, 8);
649
        }
650

    
651
        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);
652
        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);
653
    }
654

    
655
    c->pred_x= mx;
656
    c->pred_y= my;
657

    
658
    switch(c->avctx->mb_cmp&0xFF){
659
    /*case FF_CMP_SSE:
660
        return dmin_sum+ 32*s->qscale*s->qscale;*/
661
    case FF_CMP_RD:
662
        return dmin_sum;
663
    default:
664
        return dmin_sum+ 11*c->mb_penalty_factor;
665
    }
666
}
667

    
668
static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
669
    MotionEstContext * const c= &s->me;
670

    
671
    c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
672
    c->src[1][0] = c->src[0][0] + s->linesize;
673
    if(c->flags & FLAG_CHROMA){
674
        c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
675
        c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
676
        c->src[1][1] = c->src[0][1] + s->uvlinesize;
677
        c->src[1][2] = c->src[0][2] + s->uvlinesize;
678
    }
679
}
680

    
681
static int interlaced_search(MpegEncContext *s, int ref_index,
682
                             int16_t (*mv_tables[2][2])[2], uint8_t *field_select_tables[2], int mx, int my, int user_field_select)
683
{
684
    MotionEstContext * const c= &s->me;
685
    const int size=0;
686
    const int h=8;
687
    int block;
688
    int P[10][2];
689
    uint8_t * const mv_penalty= c->current_mv_penalty;
690
    int same=1;
691
    const int stride= 2*s->linesize;
692
    int dmin_sum= 0;
693
    const int mot_stride= s->mb_stride;
694
    const int xy= s->mb_x + s->mb_y*mot_stride;
695

    
696
    c->ymin>>=1;
697
    c->ymax>>=1;
698
    c->stride<<=1;
699
    c->uvstride<<=1;
700
    init_interlaced_ref(s, ref_index);
701

    
702
    for(block=0; block<2; block++){
703
        int field_select;
704
        int best_dmin= INT_MAX;
705
        int best_field= -1;
706

    
707
        for(field_select=0; field_select<2; field_select++){
708
            int dmin, mx_i, my_i;
709
            int16_t (*mv_table)[2]= mv_tables[block][field_select];
710

    
711
            if(user_field_select){
712
                assert(field_select==0 || field_select==1);
713
                assert(field_select_tables[block][xy]==0 || field_select_tables[block][xy]==1);
714
                if(field_select_tables[block][xy] != field_select)
715
                    continue;
716
            }
717

    
718
            P_LEFT[0] = mv_table[xy - 1][0];
719
            P_LEFT[1] = mv_table[xy - 1][1];
720
            if(P_LEFT[0]       > (c->xmax<<1)) P_LEFT[0]       = (c->xmax<<1);
721

    
722
            c->pred_x= P_LEFT[0];
723
            c->pred_y= P_LEFT[1];
724

    
725
            if(!s->first_slice_line){
726
                P_TOP[0]      = mv_table[xy - mot_stride][0];
727
                P_TOP[1]      = mv_table[xy - mot_stride][1];
728
                P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
729
                P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
730
                if(P_TOP[1]      > (c->ymax<<1)) P_TOP[1]     = (c->ymax<<1);
731
                if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
732
                if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
733
                if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);
734

    
735
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
736
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
737
            }
738
            P_MV1[0]= mx; //FIXME not correct if block != field_select
739
            P_MV1[1]= my / 2;
740

    
741
            dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);
742

    
743
            dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
744

    
745
            mv_table[xy][0]= mx_i;
746
            mv_table[xy][1]= my_i;
747

    
748
            if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
749
                int dxy;
750

    
751
                //FIXME chroma ME
752
                uint8_t *ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)*stride;
753
                dxy = ((my_i & 1) << 1) | (mx_i & 1);
754

    
755
                if(s->no_rounding){
756
                    s->dsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref    , stride, h);
757
                }else{
758
                    s->dsp.put_pixels_tab       [size][dxy](c->scratchpad, ref    , stride, h);
759
                }
760
                dmin= s->dsp.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
761
                dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
762
            }else
763
                dmin+= c->mb_penalty_factor; //field_select bits
764

    
765
            dmin += field_select != block; //slightly prefer same field
766

    
767
            if(dmin < best_dmin){
768
                best_dmin= dmin;
769
                best_field= field_select;
770
            }
771
        }
772
        {
773
            int16_t (*mv_table)[2]= mv_tables[block][best_field];
774

    
775
            if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
776
            if(mv_table[xy][1]&1) same=0;
777
            if(mv_table[xy][1]*2 != my) same=0;
778
            if(best_field != block) same=0;
779
        }
780

    
781
        field_select_tables[block][xy]= best_field;
782
        dmin_sum += best_dmin;
783
    }
784

    
785
    c->ymin<<=1;
786
    c->ymax<<=1;
787
    c->stride>>=1;
788
    c->uvstride>>=1;
789

    
790
    if(same)
791
        return INT_MAX;
792

    
793
    switch(c->avctx->mb_cmp&0xFF){
794
    /*case FF_CMP_SSE:
795
        return dmin_sum+ 32*s->qscale*s->qscale;*/
796
    case FF_CMP_RD:
797
        return dmin_sum;
798
    default:
799
        return dmin_sum+ 11*c->mb_penalty_factor;
800
    }
801
}
802

    
803
static void clip_input_mv(MpegEncContext * s, int16_t *mv, int interlaced){
804
    int ymax= s->me.ymax>>interlaced;
805
    int ymin= s->me.ymin>>interlaced;
806

    
807
    if(mv[0] < s->me.xmin) mv[0] = s->me.xmin;
808
    if(mv[0] > s->me.xmax) mv[0] = s->me.xmax;
809
    if(mv[1] <       ymin) mv[1] =       ymin;
810
    if(mv[1] >       ymax) mv[1] =       ymax;
811
}
812

    
813
static inline int check_input_motion(MpegEncContext * s, int mb_x, int mb_y, int p_type){
814
    MotionEstContext * const c= &s->me;
815
    Picture *p= s->current_picture_ptr;
816
    int mb_xy= mb_x + mb_y*s->mb_stride;
817
    int xy= 2*mb_x + 2*mb_y*s->b8_stride;
818
    int mb_type= s->current_picture.mb_type[mb_xy];
819
    int flags= c->flags;
820
    int shift= (flags&FLAG_QPEL) + 1;
821
    int mask= (1<<shift)-1;
822
    int x, y, i;
823
    int d=0;
824
    me_cmp_func cmpf= s->dsp.sse[0];
825
    me_cmp_func chroma_cmpf= s->dsp.sse[1];
826

    
827
    if(p_type && USES_LIST(mb_type, 1)){
828
        av_log(c->avctx, AV_LOG_ERROR, "backward motion vector in P frame\n");
829
        return INT_MAX/2;
830
    }
831
    assert(IS_INTRA(mb_type) || USES_LIST(mb_type,0) || USES_LIST(mb_type,1));
832

    
833
    for(i=0; i<4; i++){
834
        int xy= s->block_index[i];
835
        clip_input_mv(s, p->motion_val[0][xy], !!IS_INTERLACED(mb_type));
836
        clip_input_mv(s, p->motion_val[1][xy], !!IS_INTERLACED(mb_type));
837
    }
838

    
839
    if(IS_INTERLACED(mb_type)){
840
        int xy2= xy  + s->b8_stride;
841
        s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
842
        c->stride<<=1;
843
        c->uvstride<<=1;
844

    
845
        if(!(s->flags & CODEC_FLAG_INTERLACED_ME)){
846
            av_log(c->avctx, AV_LOG_ERROR, "Interlaced macroblock selected but interlaced motion estimation disabled\n");
847
            return INT_MAX/2;
848
        }
849

    
850
        if(USES_LIST(mb_type, 0)){
851
            int field_select0= p->ref_index[0][xy ];
852
            int field_select1= p->ref_index[0][xy2];
853
            assert(field_select0==0 ||field_select0==1);
854
            assert(field_select1==0 ||field_select1==1);
855
            init_interlaced_ref(s, 0);
856

    
857
            if(p_type){
858
                s->p_field_select_table[0][mb_xy]= field_select0;
859
                s->p_field_select_table[1][mb_xy]= field_select1;
860
                *(uint32_t*)s->p_field_mv_table[0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
861
                *(uint32_t*)s->p_field_mv_table[1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
862
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER_I;
863
            }else{
864
                s->b_field_select_table[0][0][mb_xy]= field_select0;
865
                s->b_field_select_table[0][1][mb_xy]= field_select1;
866
                *(uint32_t*)s->b_field_mv_table[0][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[0][xy ];
867
                *(uint32_t*)s->b_field_mv_table[0][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[0][xy2];
868
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_FORWARD_I;
869
            }
870

    
871
            x= p->motion_val[0][xy ][0];
872
            y= p->motion_val[0][xy ][1];
873
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0, 0, cmpf, chroma_cmpf, flags);
874
            x= p->motion_val[0][xy2][0];
875
            y= p->motion_val[0][xy2][1];
876
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1, 1, cmpf, chroma_cmpf, flags);
877
        }
878
        if(USES_LIST(mb_type, 1)){
879
            int field_select0= p->ref_index[1][xy ];
880
            int field_select1= p->ref_index[1][xy2];
881
            assert(field_select0==0 ||field_select0==1);
882
            assert(field_select1==0 ||field_select1==1);
883
            init_interlaced_ref(s, 2);
884

    
885
            s->b_field_select_table[1][0][mb_xy]= field_select0;
886
            s->b_field_select_table[1][1][mb_xy]= field_select1;
887
            *(uint32_t*)s->b_field_mv_table[1][0][field_select0][mb_xy]= *(uint32_t*)p->motion_val[1][xy ];
888
            *(uint32_t*)s->b_field_mv_table[1][1][field_select1][mb_xy]= *(uint32_t*)p->motion_val[1][xy2];
889
            if(USES_LIST(mb_type, 0)){
890
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BIDIR_I;
891
            }else{
892
                s->mb_type[mb_xy]= CANDIDATE_MB_TYPE_BACKWARD_I;
893
            }
894

    
895
            x= p->motion_val[1][xy ][0];
896
            y= p->motion_val[1][xy ][1];
897
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select0+2, 0, cmpf, chroma_cmpf, flags);
898
            x= p->motion_val[1][xy2][0];
899
            y= p->motion_val[1][xy2][1];
900
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 8, field_select1+2, 1, cmpf, chroma_cmpf, flags);
901
            //FIXME bidir scores
902
        }
903
        c->stride>>=1;
904
        c->uvstride>>=1;
905
    }else if(IS_8X8(mb_type)){
906
        if(!(s->flags & CODEC_FLAG_4MV)){
907
            av_log(c->avctx, AV_LOG_ERROR, "4MV macroblock selected but 4MV encoding disabled\n");
908
            return INT_MAX/2;
909
        }
910
        cmpf= s->dsp.sse[1];
911
        chroma_cmpf= s->dsp.sse[1];
912
        init_mv4_ref(c);
913
        for(i=0; i<4; i++){
914
            xy= s->block_index[i];
915
            x= p->motion_val[0][xy][0];
916
            y= p->motion_val[0][xy][1];
917
            d+= cmp(s, x>>shift, y>>shift, x&mask, y&mask, 1, 8, i, i, cmpf, chroma_cmpf, flags);
918
        }
919
        s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER4V;
920
    }else{
921
        if(USES_LIST(mb_type, 0)){
922
            if(p_type){
923
                *(uint32_t*)s->p_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
924
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTER;
925
            }else if(USES_LIST(mb_type, 1)){
926
                *(uint32_t*)s->b_bidir_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
927
                *(uint32_t*)s->b_bidir_back_mv_table[mb_xy]= *(uint32_t*)p->motion_val[1][xy];
928
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_BIDIR;
929
            }else{
930
                *(uint32_t*)s->b_forw_mv_table[mb_xy]= *(uint32_t*)p->motion_val[0][xy];
931
                s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_FORWARD;
932
            }
933
            x= p->motion_val[0][xy][0];
934
            y= p->motion_val[0][xy][1];
935
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 16, 0, 0, cmpf, chroma_cmpf, flags);
936
        }else if(USES_LIST(mb_type, 1)){
937
            *(uint32_t*)s->b_back_mv_table[mb_xy]= *(uint32_t*)p->motion_val[1][xy];
938
            s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_BACKWARD;
939

    
940
            x= p->motion_val[1][xy][0];
941
            y= p->motion_val[1][xy][1];
942
            d = cmp(s, x>>shift, y>>shift, x&mask, y&mask, 0, 16, 2, 0, cmpf, chroma_cmpf, flags);
943
        }else
944
            s->mb_type[mb_xy]=CANDIDATE_MB_TYPE_INTRA;
945
    }
946
    return d;
947
}
948

    
949
void ff_estimate_p_frame_motion(MpegEncContext * s,
950
                                int mb_x, int mb_y)
951
{
952
    MotionEstContext * const c= &s->me;
953
    uint8_t *pix, *ppix;
954
    int sum, mx, my, dmin;
955
    int varc;            ///< the variance of the block (sum of squared (p[y][x]-average))
956
    int vard;            ///< sum of squared differences with the estimated motion vector
957
    int P[10][2];
958
    const int shift= 1+s->quarter_sample;
959
    int mb_type=0;
960
    Picture * const pic= &s->current_picture;
961

    
962
    init_ref(c, s->new_picture.data, s->last_picture.data, NULL, 16*mb_x, 16*mb_y, 0);
963

    
964
    assert(s->quarter_sample==0 || s->quarter_sample==1);
965
    assert(s->linesize == c->stride);
966
    assert(s->uvlinesize == c->uvstride);
967

    
968
    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
969
    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
970
    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
971
    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
972

    
973
    get_limits(s, 16*mb_x, 16*mb_y);
974
    c->skip=0;
975

    
976
    /* intra / predictive decision */
977
    pix = c->src[0][0];
978
    sum = s->dsp.pix_sum(pix, s->linesize);
979
    varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500;
980

    
981
    pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
982
    pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
983
    c->mb_var_sum_temp += (varc+128)>>8;
984

    
985
    if(c->avctx->me_threshold){
986
        vard= check_input_motion(s, mb_x, mb_y, 1);
987

    
988
        if((vard+128)>>8 < c->avctx->me_threshold){
989
            int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
990
            int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
991
            pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
992
            c->mc_mb_var_sum_temp += (vard+128)>>8;
993
            c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
994
            return;
995
        }
996
        if((vard+128)>>8 < c->avctx->mb_threshold)
997
            mb_type= s->mb_type[mb_x + mb_y*s->mb_stride];
998
    }
999

    
1000
    switch(s->me_method) {
1001
    case ME_ZERO:
1002
    default:
1003
        no_motion_search(s, &mx, &my);
1004
        mx-= mb_x*16;
1005
        my-= mb_y*16;
1006
        dmin = 0;
1007
        break;
1008
    case ME_X1:
1009
    case ME_EPZS:
1010
       {
1011
            const int mot_stride = s->b8_stride;
1012
            const int mot_xy = s->block_index[0];
1013

    
1014
            P_LEFT[0]       = s->current_picture.motion_val[0][mot_xy - 1][0];
1015
            P_LEFT[1]       = s->current_picture.motion_val[0][mot_xy - 1][1];
1016

    
1017
            if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
1018

    
1019
            if(!s->first_slice_line) {
1020
                P_TOP[0]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][0];
1021
                P_TOP[1]      = s->current_picture.motion_val[0][mot_xy - mot_stride    ][1];
1022
                P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
1023
                P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
1024
                if(P_TOP[1]      > (c->ymax<<shift)) P_TOP[1]     = (c->ymax<<shift);
1025
                if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
1026
                if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
1027

    
1028
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1029
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1030

    
1031
                if(s->out_format == FMT_H263){
1032
                    c->pred_x = P_MEDIAN[0];
1033
                    c->pred_y = P_MEDIAN[1];
1034
                }else { /* mpeg1 at least */
1035
                    c->pred_x= P_LEFT[0];
1036
                    c->pred_y= P_LEFT[1];
1037
                }
1038
            }else{
1039
                c->pred_x= P_LEFT[0];
1040
                c->pred_y= P_LEFT[1];
1041
            }
1042

    
1043
        }
1044
        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
1045

    
1046
        break;
1047
    }
1048

    
1049
    /* At this point (mx,my) are full-pell and the relative displacement */
1050
    ppix = c->ref[0][0] + (my * s->linesize) + mx;
1051

    
1052
    vard = s->dsp.sse[0](NULL, pix, ppix, s->linesize, 16);
1053

    
1054
    pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
1055
//    pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
1056
    c->mc_mb_var_sum_temp += (vard+128)>>8;
1057

    
1058
#if 0
1059
    printf("varc=%4d avg_var=%4d (sum=%4d) vard=%4d mx=%2d my=%2d\n",
1060
           varc, s->avg_mb_var, sum, vard, mx - xx, my - yy);
1061
#endif
1062
    if(mb_type){
1063
        int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1064
        int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1065
        c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1066

    
1067
        if(mb_type == CANDIDATE_MB_TYPE_INTER){
1068
            c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1069
            set_p_mv_tables(s, mx, my, 1);
1070
        }else{
1071
            mx <<=shift;
1072
            my <<=shift;
1073
        }
1074
        if(mb_type == CANDIDATE_MB_TYPE_INTER4V){
1075
            h263_mv4_search(s, mx, my, shift);
1076

    
1077
            set_p_mv_tables(s, mx, my, 0);
1078
        }
1079
        if(mb_type == CANDIDATE_MB_TYPE_INTER_I){
1080
            interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 1);
1081
        }
1082
    }else if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
1083
        int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1084
        int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1085
        c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1086

    
1087
        if (vard*2 + 200*256 > varc)
1088
            mb_type|= CANDIDATE_MB_TYPE_INTRA;
1089
        if (varc*2 + 200*256 > vard || s->qscale > 24){
1090
//        if (varc*2 + 200*256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
1091
            mb_type|= CANDIDATE_MB_TYPE_INTER;
1092
            c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1093
            if(s->flags&CODEC_FLAG_MV0)
1094
                if(mx || my)
1095
                    mb_type |= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
1096
        }else{
1097
            mx <<=shift;
1098
            my <<=shift;
1099
        }
1100
        if((s->flags&CODEC_FLAG_4MV)
1101
           && !c->skip && varc>50<<8 && vard>10<<8){
1102
            if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
1103
                mb_type|=CANDIDATE_MB_TYPE_INTER4V;
1104

    
1105
            set_p_mv_tables(s, mx, my, 0);
1106
        }else
1107
            set_p_mv_tables(s, mx, my, 1);
1108
        if((s->flags&CODEC_FLAG_INTERLACED_ME)
1109
           && !c->skip){ //FIXME varc/d checks
1110
            if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
1111
                mb_type |= CANDIDATE_MB_TYPE_INTER_I;
1112
        }
1113
    }else{
1114
        int intra_score, i;
1115
        mb_type= CANDIDATE_MB_TYPE_INTER;
1116

    
1117
        dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1118
        if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1119
            dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1120

    
1121
        if((s->flags&CODEC_FLAG_4MV)
1122
           && !c->skip && varc>50<<8 && vard>10<<8){
1123
            int dmin4= h263_mv4_search(s, mx, my, shift);
1124
            if(dmin4 < dmin){
1125
                mb_type= CANDIDATE_MB_TYPE_INTER4V;
1126
                dmin=dmin4;
1127
            }
1128
        }
1129
        if((s->flags&CODEC_FLAG_INTERLACED_ME)
1130
           && !c->skip){ //FIXME varc/d checks
1131
            int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
1132
            if(dmin_i < dmin){
1133
                mb_type = CANDIDATE_MB_TYPE_INTER_I;
1134
                dmin= dmin_i;
1135
            }
1136
        }
1137

    
1138
//        pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
1139
        set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
1140

    
1141
        /* get intra luma score */
1142
        if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
1143
            intra_score= varc - 500;
1144
        }else{
1145
            int mean= (sum+128)>>8;
1146
            mean*= 0x01010101;
1147

    
1148
            for(i=0; i<16; i++){
1149
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 0]) = mean;
1150
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 4]) = mean;
1151
                *(uint32_t*)(&c->scratchpad[i*s->linesize+ 8]) = mean;
1152
                *(uint32_t*)(&c->scratchpad[i*s->linesize+12]) = mean;
1153
            }
1154

    
1155
            intra_score= s->dsp.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
1156
        }
1157
#if 0 //FIXME
1158
        /* get chroma score */
1159
        if(c->avctx->mb_cmp&FF_CMP_CHROMA){
1160
            for(i=1; i<3; i++){
1161
                uint8_t *dest_c;
1162
                int mean;
1163

1164
                if(s->out_format == FMT_H263){
1165
                    mean= (s->dc_val[i][mb_x + mb_y*s->b8_stride] + 4)>>3; //FIXME not exact but simple ;)
1166
                }else{
1167
                    mean= (s->last_dc[i] + 4)>>3;
1168
                }
1169
                dest_c = s->new_picture.data[i] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
1170

1171
                mean*= 0x01010101;
1172
                for(i=0; i<8; i++){
1173
                    *(uint32_t*)(&c->scratchpad[i*s->uvlinesize+ 0]) = mean;
1174
                    *(uint32_t*)(&c->scratchpad[i*s->uvlinesize+ 4]) = mean;
1175
                }
1176

1177
                intra_score+= s->dsp.mb_cmp[1](s, c->scratchpad, dest_c, s->uvlinesize);
1178
            }
1179
        }
1180
#endif
1181
        intra_score += c->mb_penalty_factor*16;
1182

    
1183
        if(intra_score < dmin){
1184
            mb_type= CANDIDATE_MB_TYPE_INTRA;
1185
            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
1186
        }else
1187
            s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= 0;
1188

    
1189
        {
1190
            int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
1191
            int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
1192
            c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
1193
        }
1194
    }
1195

    
1196
    s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
1197
}
1198

    
1199
int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
1200
                                    int mb_x, int mb_y)
1201
{
1202
    MotionEstContext * const c= &s->me;
1203
    int mx, my, dmin;
1204
    int P[10][2];
1205
    const int shift= 1+s->quarter_sample;
1206
    const int xy= mb_x + mb_y*s->mb_stride;
1207
    init_ref(c, s->new_picture.data, s->last_picture.data, NULL, 16*mb_x, 16*mb_y, 0);
1208

    
1209
    assert(s->quarter_sample==0 || s->quarter_sample==1);
1210

    
1211
    c->pre_penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);
1212
    c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1213

    
1214
    get_limits(s, 16*mb_x, 16*mb_y);
1215
    c->skip=0;
1216

    
1217
    P_LEFT[0]       = s->p_mv_table[xy + 1][0];
1218
    P_LEFT[1]       = s->p_mv_table[xy + 1][1];
1219

    
1220
    if(P_LEFT[0]       < (c->xmin<<shift)) P_LEFT[0]       = (c->xmin<<shift);
1221

    
1222
    /* special case for first line */
1223
    if (s->first_slice_line) {
1224
        c->pred_x= P_LEFT[0];
1225
        c->pred_y= P_LEFT[1];
1226
        P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
1227
        P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
1228
    } else {
1229
        P_TOP[0]      = s->p_mv_table[xy + s->mb_stride    ][0];
1230
        P_TOP[1]      = s->p_mv_table[xy + s->mb_stride    ][1];
1231
        P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
1232
        P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
1233
        if(P_TOP[1]      < (c->ymin<<shift)) P_TOP[1]     = (c->ymin<<shift);
1234
        if(P_TOPRIGHT[0] > (c->xmax<<shift)) P_TOPRIGHT[0]= (c->xmax<<shift);
1235
        if(P_TOPRIGHT[1] < (c->ymin<<shift)) P_TOPRIGHT[1]= (c->ymin<<shift);
1236

    
1237
        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1238
        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1239

    
1240
        c->pred_x = P_MEDIAN[0];
1241
        c->pred_y = P_MEDIAN[1];
1242
    }
1243

    
1244
    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
1245

    
1246
    s->p_mv_table[xy][0] = mx<<shift;
1247
    s->p_mv_table[xy][1] = my<<shift;
1248

    
1249
    return dmin;
1250
}
1251

    
1252
static int ff_estimate_motion_b(MpegEncContext * s,
1253
                       int mb_x, int mb_y, int16_t (*mv_table)[2], int ref_index, int f_code)
1254
{
1255
    MotionEstContext * const c= &s->me;
1256
    int mx, my, dmin;
1257
    int P[10][2];
1258
    const int shift= 1+s->quarter_sample;
1259
    const int mot_stride = s->mb_stride;
1260
    const int mot_xy = mb_y*mot_stride + mb_x;
1261
    uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;
1262
    int mv_scale;
1263

    
1264
    c->penalty_factor    = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
1265
    c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
1266
    c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
1267
    c->current_mv_penalty= mv_penalty;
1268

    
1269
    get_limits(s, 16*mb_x, 16*mb_y);
1270

    
1271
    switch(s->me_method) {
1272
    case ME_ZERO:
1273
    default:
1274
        no_motion_search(s, &mx, &my);
1275
        dmin = 0;
1276
        mx-= mb_x*16;
1277
        my-= mb_y*16;
1278
        break;
1279
    case ME_X1:
1280
    case ME_EPZS:
1281
       {
1282
            P_LEFT[0]        = mv_table[mot_xy - 1][0];
1283
            P_LEFT[1]        = mv_table[mot_xy - 1][1];
1284

    
1285
            if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
1286

    
1287
            /* special case for first line */
1288
            if (!s->first_slice_line) {
1289
                P_TOP[0] = mv_table[mot_xy - mot_stride             ][0];
1290
                P_TOP[1] = mv_table[mot_xy - mot_stride             ][1];
1291
                P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1         ][0];
1292
                P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1         ][1];
1293
                if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1]= (c->ymax<<shift);
1294
                if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
1295
                if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
1296

    
1297
                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1298
                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1299
            }
1300
            c->pred_x= P_LEFT[0];
1301
            c->pred_y= P_LEFT[1];
1302
        }
1303

    
1304
        if(mv_table == s->b_forw_mv_table){
1305
            mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);
1306
        }else{
1307
            mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<<shift);
1308
        }
1309

    
1310
        dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
1311

    
1312
        break;
1313
    }
1314

    
1315
    dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
1316

    
1317
    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1318
        dmin= ff_get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
1319

    
1320
//printf("%d %d %d %d//", s->mb_x, s->mb_y, mx, my);
1321
//    s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
1322
    mv_table[mot_xy][0]= mx;
1323
    mv_table[mot_xy][1]= my;
1324

    
1325
    return dmin;
1326
}
1327

    
1328
static inline int check_bidir_mv(MpegEncContext * s,
1329
                   int motion_fx, int motion_fy,
1330
                   int motion_bx, int motion_by,
1331
                   int pred_fx, int pred_fy,
1332
                   int pred_bx, int pred_by,
1333
                   int size, int h)
1334
{
1335
    //FIXME optimize?
1336
    //FIXME better f_code prediction (max mv & distance)
1337
    //FIXME pointers
1338
    MotionEstContext * const c= &s->me;
1339
    uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame
1340
    uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_MV; // f_code of the prev frame
1341
    int stride= c->stride;
1342
    uint8_t *dest_y = c->scratchpad;
1343
    uint8_t *ptr;
1344
    int dxy;
1345
    int src_x, src_y;
1346
    int fbmin;
1347
    uint8_t **src_data= c->src[0];
1348
    uint8_t **ref_data= c->ref[0];
1349
    uint8_t **ref2_data= c->ref[2];
1350

    
1351
    if(s->quarter_sample){
1352
        dxy = ((motion_fy & 3) << 2) | (motion_fx & 3);
1353
        src_x = motion_fx >> 2;
1354
        src_y = motion_fy >> 2;
1355

    
1356
        ptr = ref_data[0] + (src_y * stride) + src_x;
1357
        s->dsp.put_qpel_pixels_tab[0][dxy](dest_y    , ptr    , stride);
1358

    
1359
        dxy = ((motion_by & 3) << 2) | (motion_bx & 3);
1360
        src_x = motion_bx >> 2;
1361
        src_y = motion_by >> 2;
1362

    
1363
        ptr = ref2_data[0] + (src_y * stride) + src_x;
1364
        s->dsp.avg_qpel_pixels_tab[size][dxy](dest_y    , ptr    , stride);
1365
    }else{
1366
        dxy = ((motion_fy & 1) << 1) | (motion_fx & 1);
1367
        src_x = motion_fx >> 1;
1368
        src_y = motion_fy >> 1;
1369

    
1370
        ptr = ref_data[0] + (src_y * stride) + src_x;
1371
        s->dsp.put_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
1372

    
1373
        dxy = ((motion_by & 1) << 1) | (motion_bx & 1);
1374
        src_x = motion_bx >> 1;
1375
        src_y = motion_by >> 1;
1376

    
1377
        ptr = ref2_data[0] + (src_y * stride) + src_x;
1378
        s->dsp.avg_pixels_tab[size][dxy](dest_y    , ptr    , stride, h);
1379
    }
1380

    
1381
    fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
1382
           +(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
1383
           + s->dsp.mb_cmp[size](s, src_data[0], dest_y, stride, h); //FIXME new_pic
1384

    
1385
    if(c->avctx->mb_cmp&FF_CMP_CHROMA){
1386
    }
1387
    //FIXME CHROMA !!!
1388

    
1389
    return fbmin;
1390
}
1391

    
1392
/* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
1393
static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)
1394
{
1395
    MotionEstContext * const c= &s->me;
1396
    const int mot_stride = s->mb_stride;
1397
    const int xy = mb_y *mot_stride + mb_x;
1398
    int fbmin;
1399
    int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
1400
    int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
1401
    int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
1402
    int pred_by= s->b_bidir_back_mv_table[xy-1][1];
1403
    int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
1404
    int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
1405
    int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
1406
    int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
1407
    const int flags= c->sub_flags;
1408
    const int qpel= flags&FLAG_QPEL;
1409
    const int shift= 1+qpel;
1410
    const int xmin= c->xmin<<shift;
1411
    const int ymin= c->ymin<<shift;
1412
    const int xmax= c->xmax<<shift;
1413
    const int ymax= c->ymax<<shift;
1414
    uint8_t map[8][8][8][8];
1415

    
1416
    memset(map,0,sizeof(map));
1417
#define BIDIR_MAP(fx,fy,bx,by) \
1418
    map[(motion_fx+fx)&7][(motion_fy+fy)&7][(motion_bx+bx)&7][(motion_by+by)&7]
1419
    BIDIR_MAP(0,0,0,0) = 1;
1420

    
1421
    fbmin= check_bidir_mv(s, motion_fx, motion_fy,
1422
                          motion_bx, motion_by,
1423
                          pred_fx, pred_fy,
1424
                          pred_bx, pred_by,
1425
                          0, 16);
1426

    
1427
    if(s->avctx->bidir_refine){
1428
        int score, end;
1429
#define CHECK_BIDIR(fx,fy,bx,by)\
1430
    if( !BIDIR_MAP(fx,fy,bx,by)\
1431
       &&(fx<=0 || motion_fx+fx<=xmax) && (fy<=0 || motion_fy+fy<=ymax) && (bx<=0 || motion_bx+bx<=xmax) && (by<=0 || motion_by+by<=ymax)\
1432
       &&(fx>=0 || motion_fx+fx>=xmin) && (fy>=0 || motion_fy+fy>=ymin) && (bx>=0 || motion_bx+bx>=xmin) && (by>=0 || motion_by+by>=ymin)){\
1433
        BIDIR_MAP(fx,fy,bx,by) = 1;\
1434
        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);\
1435
        if(score < fbmin){\
1436
            fbmin= score;\
1437
            motion_fx+=fx;\
1438
            motion_fy+=fy;\
1439
            motion_bx+=bx;\
1440
            motion_by+=by;\
1441
            end=0;\
1442
        }\
1443
    }
1444
#define CHECK_BIDIR2(a,b,c,d)\
1445
CHECK_BIDIR(a,b,c,d)\
1446
CHECK_BIDIR(-(a),-(b),-(c),-(d))
1447

    
1448
#define CHECK_BIDIRR(a,b,c,d)\
1449
CHECK_BIDIR2(a,b,c,d)\
1450
CHECK_BIDIR2(b,c,d,a)\
1451
CHECK_BIDIR2(c,d,a,b)\
1452
CHECK_BIDIR2(d,a,b,c)
1453

    
1454
        do{
1455
            end=1;
1456

    
1457
            CHECK_BIDIRR( 0, 0, 0, 1)
1458
            if(s->avctx->bidir_refine > 1){
1459
                CHECK_BIDIRR( 0, 0, 1, 1)
1460
                CHECK_BIDIR2( 0, 1, 0, 1)
1461
                CHECK_BIDIR2( 1, 0, 1, 0)
1462
                CHECK_BIDIRR( 0, 0,-1, 1)
1463
                CHECK_BIDIR2( 0,-1, 0, 1)
1464
                CHECK_BIDIR2(-1, 0, 1, 0)
1465
                if(s->avctx->bidir_refine > 2){
1466
                    CHECK_BIDIRR( 0, 1, 1, 1)
1467
                    CHECK_BIDIRR( 0,-1, 1, 1)
1468
                    CHECK_BIDIRR( 0, 1,-1, 1)
1469
                    CHECK_BIDIRR( 0, 1, 1,-1)
1470
                    if(s->avctx->bidir_refine > 3){
1471
                        CHECK_BIDIR2( 1, 1, 1, 1)
1472
                        CHECK_BIDIRR( 1, 1, 1,-1)
1473
                        CHECK_BIDIR2( 1, 1,-1,-1)
1474
                        CHECK_BIDIR2( 1,-1,-1, 1)
1475
                        CHECK_BIDIR2( 1,-1, 1,-1)
1476
                    }
1477
                }
1478
            }
1479
        }while(!end);
1480
    }
1481

    
1482
    s->b_bidir_forw_mv_table[xy][0]= motion_fx;
1483
    s->b_bidir_forw_mv_table[xy][1]= motion_fy;
1484
    s->b_bidir_back_mv_table[xy][0]= motion_bx;
1485
    s->b_bidir_back_mv_table[xy][1]= motion_by;
1486

    
1487
    return fbmin;
1488
}
1489

    
1490
static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
1491
{
1492
    MotionEstContext * const c= &s->me;
1493
    int P[10][2];
1494
    const int mot_stride = s->mb_stride;
1495
    const int mot_xy = mb_y*mot_stride + mb_x;
1496
    const int shift= 1+s->quarter_sample;
1497
    int dmin, i;
1498
    const int time_pp= s->pp_time;
1499
    const int time_pb= s->pb_time;
1500
    int mx, my, xmin, xmax, ymin, ymax;
1501
    int16_t (*mv_table)[2]= s->b_direct_mv_table;
1502

    
1503
    c->current_mv_penalty= c->mv_penalty[1] + MAX_MV;
1504
    ymin= xmin=(-32)>>shift;
1505
    ymax= xmax=   31>>shift;
1506

    
1507
    if(IS_8X8(s->next_picture.mb_type[mot_xy])){
1508
        s->mv_type= MV_TYPE_8X8;
1509
    }else{
1510
        s->mv_type= MV_TYPE_16X16;
1511
    }
1512

    
1513
    for(i=0; i<4; i++){
1514
        int index= s->block_index[i];
1515
        int min, max;
1516

    
1517
        c->co_located_mv[i][0]= s->next_picture.motion_val[0][index][0];
1518
        c->co_located_mv[i][1]= s->next_picture.motion_val[0][index][1];
1519
        c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
1520
        c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
1521
//        c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
1522
//        c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
1523

    
1524
        max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1525
        min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
1526
        max+= 16*mb_x + 1; // +-1 is for the simpler rounding
1527
        min+= 16*mb_x - 1;
1528
        xmax= FFMIN(xmax, s->width - max);
1529
        xmin= FFMAX(xmin, - 16     - min);
1530

    
1531
        max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1532
        min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
1533
        max+= 16*mb_y + 1; // +-1 is for the simpler rounding
1534
        min+= 16*mb_y - 1;
1535
        ymax= FFMIN(ymax, s->height - max);
1536
        ymin= FFMAX(ymin, - 16      - min);
1537

    
1538
        if(s->mv_type == MV_TYPE_16X16) break;
1539
    }
1540

    
1541
    assert(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
1542

    
1543
    if(xmax < 0 || xmin >0 || ymax < 0 || ymin > 0){
1544
        s->b_direct_mv_table[mot_xy][0]= 0;
1545
        s->b_direct_mv_table[mot_xy][1]= 0;
1546

    
1547
        return 256*256*256*64;
1548
    }
1549

    
1550
    c->xmin= xmin;
1551
    c->ymin= ymin;
1552
    c->xmax= xmax;
1553
    c->ymax= ymax;
1554
    c->flags     |= FLAG_DIRECT;
1555
    c->sub_flags |= FLAG_DIRECT;
1556
    c->pred_x=0;
1557
    c->pred_y=0;
1558

    
1559
    P_LEFT[0]        = av_clip(mv_table[mot_xy - 1][0], xmin<<shift, xmax<<shift);
1560
    P_LEFT[1]        = av_clip(mv_table[mot_xy - 1][1], ymin<<shift, ymax<<shift);
1561

    
1562
    /* special case for first line */
1563
    if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
1564
        P_TOP[0]      = av_clip(mv_table[mot_xy - mot_stride             ][0], xmin<<shift, xmax<<shift);
1565
        P_TOP[1]      = av_clip(mv_table[mot_xy - mot_stride             ][1], ymin<<shift, ymax<<shift);
1566
        P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1         ][0], xmin<<shift, xmax<<shift);
1567
        P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1         ][1], ymin<<shift, ymax<<shift);
1568

    
1569
        P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
1570
        P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
1571
    }
1572

    
1573
    dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
1574
    if(c->sub_flags&FLAG_QPEL)
1575
        dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1576
    else
1577
        dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
1578

    
1579
    if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
1580
        dmin= ff_get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
1581

    
1582
    get_limits(s, 16*mb_x, 16*mb_y); //restore c->?min/max, maybe not needed
1583

    
1584
    mv_table[mot_xy][0]= mx;
1585
    mv_table[mot_xy][1]= my;
1586
    c->flags     &= ~FLAG_DIRECT;
1587
    c->sub_flags &= ~FLAG_DIRECT;
1588

    
1589
    return dmin;
1590
}
1591

    
1592
void ff_estimate_b_frame_motion(MpegEncContext * s,
1593
                             int mb_x, int mb_y)
1594
{
1595
    MotionEstContext * const c= &s->me;
1596
    const int penalty_factor= c->mb_penalty_factor;
1597
    int fmin, bmin, dmin, fbmin, bimin, fimin;
1598
    int type=0;
1599
    const int xy = mb_y*s->mb_stride + mb_x;
1600
    init_ref(c, s->new_picture.data, s->last_picture.data, s->next_picture.data, 16*mb_x, 16*mb_y, 2);
1601

    
1602
    get_limits(s, 16*mb_x, 16*mb_y);
1603

    
1604
    c->skip=0;
1605

    
1606
    if(s->codec_id == CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]){
1607
        int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
1608

    
1609
        score= ((unsigned)(score*score + 128*256))>>16;
1610
        c->mc_mb_var_sum_temp += score;
1611
        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1612
        s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
1613

    
1614
        return;
1615
    }
1616

    
1617
    if(c->avctx->me_threshold){
1618
        int vard= check_input_motion(s, mb_x, mb_y, 0);
1619

    
1620
        if((vard+128)>>8 < c->avctx->me_threshold){
1621
//            pix = c->src[0][0];
1622
//            sum = s->dsp.pix_sum(pix, s->linesize);
1623
//            varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500;
1624

    
1625
//            pic->mb_var   [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
1626
             s->current_picture.mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
1627
/*            pic->mb_mean  [s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1628
            c->mb_var_sum_temp    += (varc+128)>>8;*/
1629
            c->mc_mb_var_sum_temp += (vard+128)>>8;
1630
/*            if (vard <= 64<<8 || vard < varc) {
1631
                c->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
1632
            }else{
1633
                c->scene_change_score+= s->qscale * s->avctx->scenechange_factor;
1634
            }*/
1635
            return;
1636
        }
1637
        if((vard+128)>>8 < c->avctx->mb_threshold){
1638
            type= s->mb_type[mb_y*s->mb_stride + mb_x];
1639
            if(type == CANDIDATE_MB_TYPE_DIRECT){
1640
                direct_search(s, mb_x, mb_y);
1641
            }
1642
            if(type == CANDIDATE_MB_TYPE_FORWARD || type == CANDIDATE_MB_TYPE_BIDIR){
1643
                c->skip=0;
1644
                ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code);
1645
            }
1646
            if(type == CANDIDATE_MB_TYPE_BACKWARD || type == CANDIDATE_MB_TYPE_BIDIR){
1647
                c->skip=0;
1648
                ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code);
1649
            }
1650
            if(type == CANDIDATE_MB_TYPE_FORWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
1651
                c->skip=0;
1652
                c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1653
                interlaced_search(s, 0,
1654
                                        s->b_field_mv_table[0], s->b_field_select_table[0],
1655
                                        s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 1);
1656
            }
1657
            if(type == CANDIDATE_MB_TYPE_BACKWARD_I || type == CANDIDATE_MB_TYPE_BIDIR_I){
1658
                c->skip=0;
1659
                c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
1660
                interlaced_search(s, 2,
1661
                                        s->b_field_mv_table[1], s->b_field_select_table[1],
1662
                                        s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 1);
1663
            }
1664
            return;
1665
        }
1666
    }
1667

    
1668
    if (s->codec_id == CODEC_ID_MPEG4)
1669
        dmin= direct_search(s, mb_x, mb_y);
1670
    else
1671
        dmin= INT_MAX;
1672
//FIXME penalty stuff for non mpeg4
1673
    c->skip=0;
1674
    fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) + 3*penalty_factor;
1675

    
1676
    c->skip=0;
1677
    bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) + 2*penalty_factor;
1678
//printf(" %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
1679

    
1680
    c->skip=0;
1681
    fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
1682
//printf("%d %d %d %d\n", dmin, fmin, bmin, fbmin);
1683

    
1684
    if(s->flags & CODEC_FLAG_INTERLACED_ME){
1685
//FIXME mb type penalty
1686
        c->skip=0;
1687
        c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
1688
        fimin= interlaced_search(s, 0,
1689
                                 s->b_field_mv_table[0], s->b_field_select_table[0],
1690
                                 s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
1691
        c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
1692
        bimin= interlaced_search(s, 2,
1693
                                 s->b_field_mv_table[1], s->b_field_select_table[1],
1694
                                 s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
1695
    }else
1696
        fimin= bimin= INT_MAX;
1697

    
1698
    {
1699
        int score= fmin;
1700
        type = CANDIDATE_MB_TYPE_FORWARD;
1701

    
1702
        if (dmin <= score){
1703
            score = dmin;
1704
            type = CANDIDATE_MB_TYPE_DIRECT;
1705
        }
1706
        if(bmin<score){
1707
            score=bmin;
1708
            type= CANDIDATE_MB_TYPE_BACKWARD;
1709
        }
1710
        if(fbmin<score){
1711
            score=fbmin;
1712
            type= CANDIDATE_MB_TYPE_BIDIR;
1713
        }
1714
        if(fimin<score){
1715
            score=fimin;
1716
            type= CANDIDATE_MB_TYPE_FORWARD_I;
1717
        }
1718
        if(bimin<score){
1719
            score=bimin;
1720
            type= CANDIDATE_MB_TYPE_BACKWARD_I;
1721
        }
1722

    
1723
        score= ((unsigned)(score*score + 128*256))>>16;
1724
        c->mc_mb_var_sum_temp += score;
1725
        s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
1726
    }
1727

    
1728
    if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
1729
        type= CANDIDATE_MB_TYPE_FORWARD | CANDIDATE_MB_TYPE_BACKWARD | CANDIDATE_MB_TYPE_BIDIR | CANDIDATE_MB_TYPE_DIRECT;
1730
        if(fimin < INT_MAX)
1731
            type |= CANDIDATE_MB_TYPE_FORWARD_I;
1732
        if(bimin < INT_MAX)
1733
            type |= CANDIDATE_MB_TYPE_BACKWARD_I;
1734
        if(fimin < INT_MAX && bimin < INT_MAX){
1735
            type |= CANDIDATE_MB_TYPE_BIDIR_I;
1736
        }
1737
         //FIXME something smarter
1738
        if(dmin>256*256*16) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
1739
        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])
1740
            type |= CANDIDATE_MB_TYPE_DIRECT0;
1741
#if 0
1742
        if(s->out_format == FMT_MPEG1)
1743
            type |= CANDIDATE_MB_TYPE_INTRA;
1744
#endif
1745
    }
1746

    
1747
    s->mb_type[mb_y*s->mb_stride + mb_x]= type;
1748
}
1749

    
1750
/* find best f_code for ME which do unlimited searches */
1751
int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
1752
{
1753
    if(s->me_method>=ME_EPZS){
1754
        int score[8];
1755
        int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
1756
        uint8_t * fcode_tab= s->fcode_tab;
1757
        int best_fcode=-1;
1758
        int best_score=-10000000;
1759

    
1760
        if(s->msmpeg4_version)
1761
            range= FFMIN(range, 16);
1762
        else if(s->codec_id == CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)
1763
            range= FFMIN(range, 256);
1764

    
1765
        for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
1766

    
1767
        for(y=0; y<s->mb_height; y++){
1768
            int x;
1769
            int xy= y*s->mb_stride;
1770
            for(x=0; x<s->mb_width; x++){
1771
                if(s->mb_type[xy] & type){
1772
                    int mx= mv_table[xy][0];
1773
                    int my= mv_table[xy][1];
1774
                    int fcode= FFMAX(fcode_tab[mx + MAX_MV],
1775
                                     fcode_tab[my + MAX_MV]);
1776
                    int j;
1777

    
1778
                        if(mx >= range || mx < -range ||
1779
                           my >= range || my < -range)
1780
                            continue;
1781

    
1782
                    for(j=0; j<fcode && j<8; j++){
1783
                        if(s->pict_type==FF_B_TYPE || s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
1784
                            score[j]-= 170;
1785
                    }
1786
                }
1787
                xy++;
1788
            }
1789
        }
1790

    
1791
        for(i=1; i<8; i++){
1792
            if(score[i] > best_score){
1793
                best_score= score[i];
1794
                best_fcode= i;
1795
            }
1796
//            printf("%d %d\n", i, score[i]);
1797
        }
1798

    
1799
//    printf("fcode: %d type: %d\n", i, s->pict_type);
1800
        return best_fcode;
1801
/*        for(i=0; i<=MAX_FCODE; i++){
1802
            printf("%d ", mv_num[i]);
1803
        }
1804
        printf("\n");*/
1805
    }else{
1806
        return 1;
1807
    }
1808
}
1809

    
1810
void ff_fix_long_p_mvs(MpegEncContext * s)
1811
{
1812
    MotionEstContext * const c= &s->me;
1813
    const int f_code= s->f_code;
1814
    int y, range;
1815
    assert(s->pict_type==FF_P_TYPE);
1816

    
1817
    range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1818

    
1819
    assert(range <= 16 || !s->msmpeg4_version);
1820
    assert(range <=256 || !(s->codec_id == CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));
1821

    
1822
    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1823

    
1824
//printf("%d no:%d %d//\n", clip, noclip, f_code);
1825
    if(s->flags&CODEC_FLAG_4MV){
1826
        const int wrap= s->b8_stride;
1827

    
1828
        /* clip / convert to intra 8x8 type MVs */
1829
        for(y=0; y<s->mb_height; y++){
1830
            int xy= y*2*wrap;
1831
            int i= y*s->mb_stride;
1832
            int x;
1833

    
1834
            for(x=0; x<s->mb_width; x++){
1835
                if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){
1836
                    int block;
1837
                    for(block=0; block<4; block++){
1838
                        int off= (block& 1) + (block>>1)*wrap;
1839
                        int mx= s->current_picture.motion_val[0][ xy + off ][0];
1840
                        int my= s->current_picture.motion_val[0][ xy + off ][1];
1841

    
1842
                        if(   mx >=range || mx <-range
1843
                           || my >=range || my <-range){
1844
                            s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
1845
                            s->mb_type[i] |= CANDIDATE_MB_TYPE_INTRA;
1846
                            s->current_picture.mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
1847
                        }
1848
                    }
1849
                }
1850
                xy+=2;
1851
                i++;
1852
            }
1853
        }
1854
    }
1855
}
1856

    
1857
/**
1858
 *
1859
 * @param truncate 1 for truncation, 0 for using intra
1860
 */
1861
void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
1862
                     int16_t (*mv_table)[2], int f_code, int type, int truncate)
1863
{
1864
    MotionEstContext * const c= &s->me;
1865
    int y, h_range, v_range;
1866

    
1867
    // RAL: 8 in MPEG-1, 16 in MPEG-4
1868
    int range = (((s->out_format == FMT_MPEG1 || s->msmpeg4_version) ? 8 : 16) << f_code);
1869

    
1870
    if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
1871

    
1872
    h_range= range;
1873
    v_range= field_select_table ? range>>1 : range;
1874

    
1875
    /* clip / convert to intra 16x16 type MVs */
1876
    for(y=0; y<s->mb_height; y++){
1877
        int x;
1878
        int xy= y*s->mb_stride;
1879
        for(x=0; x<s->mb_width; x++){
1880
            if (s->mb_type[xy] & type){    // RAL: "type" test added...
1881
                if(field_select_table==NULL || field_select_table[xy] == field_select){
1882
                    if(   mv_table[xy][0] >=h_range || mv_table[xy][0] <-h_range
1883
                       || mv_table[xy][1] >=v_range || mv_table[xy][1] <-v_range){
1884

    
1885
                        if(truncate){
1886
                            if     (mv_table[xy][0] > h_range-1) mv_table[xy][0]=  h_range-1;
1887
                            else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
1888
                            if     (mv_table[xy][1] > v_range-1) mv_table[xy][1]=  v_range-1;
1889
                            else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
1890
                        }else{
1891
                            s->mb_type[xy] &= ~type;
1892
                            s->mb_type[xy] |= CANDIDATE_MB_TYPE_INTRA;
1893
                            mv_table[xy][0]=
1894
                            mv_table[xy][1]= 0;
1895
                        }
1896
                    }
1897
                }
1898
            }
1899
            xy++;
1900
        }
1901
    }
1902
}