yading@10: /*
yading@10:  * Copyright (c) 2000,2001 Fabrice Bellard
yading@10:  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
yading@10:  *
yading@10:  * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #include <string.h>
yading@10: 
yading@10: #include "libavutil/avassert.h"
yading@10: #include "libavutil/internal.h"
yading@10: #include "avcodec.h"
yading@10: #include "dsputil.h"
yading@10: #include "h261.h"
yading@10: #include "mpegvideo.h"
yading@10: #include "mjpegenc.h"
yading@10: #include "msmpeg4.h"
yading@10: #include <limits.h>
yading@10: 
yading@10: static void gmc1_motion(MpegEncContext *s,
yading@10:                         uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                         uint8_t **ref_picture)
yading@10: {
yading@10:     uint8_t *ptr;
yading@10:     int offset, src_x, src_y, linesize, uvlinesize;
yading@10:     int motion_x, motion_y;
yading@10:     int emu=0;
yading@10: 
yading@10:     motion_x= s->sprite_offset[0][0];
yading@10:     motion_y= s->sprite_offset[0][1];
yading@10:     src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
yading@10:     src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
yading@10:     motion_x<<=(3-s->sprite_warping_accuracy);
yading@10:     motion_y<<=(3-s->sprite_warping_accuracy);
yading@10:     src_x = av_clip(src_x, -16, s->width);
yading@10:     if (src_x == s->width)
yading@10:         motion_x =0;
yading@10:     src_y = av_clip(src_y, -16, s->height);
yading@10:     if (src_y == s->height)
yading@10:         motion_y =0;
yading@10: 
yading@10:     linesize = s->linesize;
yading@10:     uvlinesize = s->uvlinesize;
yading@10: 
yading@10:     ptr = ref_picture[0] + (src_y * linesize) + src_x;
yading@10: 
yading@10:         if(   (unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0)
yading@10:            || (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)){
yading@10:             s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
yading@10:             ptr= s->edge_emu_buffer;
yading@10:         }
yading@10: 
yading@10:     if((motion_x|motion_y)&7){
yading@10:         s->dsp.gmc1(dest_y  , ptr  , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
yading@10:         s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
yading@10:     }else{
yading@10:         int dxy;
yading@10: 
yading@10:         dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);
yading@10:         if (s->no_rounding){
yading@10:             s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
yading@10:         }else{
yading@10:             s->hdsp.put_pixels_tab       [0][dxy](dest_y, ptr, linesize, 16);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
yading@10: 
yading@10:     motion_x= s->sprite_offset[1][0];
yading@10:     motion_y= s->sprite_offset[1][1];
yading@10:     src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
yading@10:     src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
yading@10:     motion_x<<=(3-s->sprite_warping_accuracy);
yading@10:     motion_y<<=(3-s->sprite_warping_accuracy);
yading@10:     src_x = av_clip(src_x, -8, s->width>>1);
yading@10:     if (src_x == s->width>>1)
yading@10:         motion_x =0;
yading@10:     src_y = av_clip(src_y, -8, s->height>>1);
yading@10:     if (src_y == s->height>>1)
yading@10:         motion_y =0;
yading@10: 
yading@10:     offset = (src_y * uvlinesize) + src_x;
yading@10:     ptr = ref_picture[1] + offset;
yading@10:         if(   (unsigned)src_x >= FFMAX((s->h_edge_pos>>1) - 9, 0)
yading@10:            || (unsigned)src_y >= FFMAX((s->v_edge_pos>>1) - 9, 0)){
yading@10:             s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:             ptr= s->edge_emu_buffer;
yading@10:             emu=1;
yading@10:         }
yading@10:     s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
yading@10: 
yading@10:     ptr = ref_picture[2] + offset;
yading@10:     if(emu){
yading@10:         s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:         ptr= s->edge_emu_buffer;
yading@10:     }
yading@10:     s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
yading@10: 
yading@10:     return;
yading@10: }
yading@10: 
yading@10: static void gmc_motion(MpegEncContext *s,
yading@10:                        uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                        uint8_t **ref_picture)
yading@10: {
yading@10:     uint8_t *ptr;
yading@10:     int linesize, uvlinesize;
yading@10:     const int a= s->sprite_warping_accuracy;
yading@10:     int ox, oy;
yading@10: 
yading@10:     linesize = s->linesize;
yading@10:     uvlinesize = s->uvlinesize;
yading@10: 
yading@10:     ptr = ref_picture[0];
yading@10: 
yading@10:     ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
yading@10:     oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
yading@10: 
yading@10:     s->dsp.gmc(dest_y, ptr, linesize, 16,
yading@10:            ox,
yading@10:            oy,
yading@10:            s->sprite_delta[0][0], s->sprite_delta[0][1],
yading@10:            s->sprite_delta[1][0], s->sprite_delta[1][1],
yading@10:            a+1, (1<<(2*a+1)) - s->no_rounding,
yading@10:            s->h_edge_pos, s->v_edge_pos);
yading@10:     s->dsp.gmc(dest_y+8, ptr, linesize, 16,
yading@10:            ox + s->sprite_delta[0][0]*8,
yading@10:            oy + s->sprite_delta[1][0]*8,
yading@10:            s->sprite_delta[0][0], s->sprite_delta[0][1],
yading@10:            s->sprite_delta[1][0], s->sprite_delta[1][1],
yading@10:            a+1, (1<<(2*a+1)) - s->no_rounding,
yading@10:            s->h_edge_pos, s->v_edge_pos);
yading@10: 
yading@10:     if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return;
yading@10: 
yading@10:     ox= s->sprite_offset[1][0] + s->sprite_delta[0][0]*s->mb_x*8 + s->sprite_delta[0][1]*s->mb_y*8;
yading@10:     oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
yading@10: 
yading@10:     ptr = ref_picture[1];
yading@10:     s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
yading@10:            ox,
yading@10:            oy,
yading@10:            s->sprite_delta[0][0], s->sprite_delta[0][1],
yading@10:            s->sprite_delta[1][0], s->sprite_delta[1][1],
yading@10:            a+1, (1<<(2*a+1)) - s->no_rounding,
yading@10:            s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10: 
yading@10:     ptr = ref_picture[2];
yading@10:     s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
yading@10:            ox,
yading@10:            oy,
yading@10:            s->sprite_delta[0][0], s->sprite_delta[0][1],
yading@10:            s->sprite_delta[1][0], s->sprite_delta[1][1],
yading@10:            a+1, (1<<(2*a+1)) - s->no_rounding,
yading@10:            s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10: }
yading@10: 
yading@10: static inline int hpel_motion(MpegEncContext *s,
yading@10:                                   uint8_t *dest, uint8_t *src,
yading@10:                                   int src_x, int src_y,
yading@10:                                   op_pixels_func *pix_op,
yading@10:                                   int motion_x, int motion_y)
yading@10: {
yading@10:     int dxy = 0;
yading@10:     int emu=0;
yading@10: 
yading@10:     src_x += motion_x >> 1;
yading@10:     src_y += motion_y >> 1;
yading@10: 
yading@10:     /* WARNING: do no forget half pels */
yading@10:     src_x = av_clip(src_x, -16, s->width); //FIXME unneeded for emu?
yading@10:     if (src_x != s->width)
yading@10:         dxy |= motion_x & 1;
yading@10:     src_y = av_clip(src_y, -16, s->height);
yading@10:     if (src_y != s->height)
yading@10:         dxy |= (motion_y & 1) << 1;
yading@10:     src += src_y * s->linesize + src_x;
yading@10: 
yading@10:     if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
yading@10:         if(   (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&1) - 8, 0)
yading@10:            || (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y&1) - 8, 0)){
yading@10:             s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, 9, 9,
yading@10:                              src_x, src_y, s->h_edge_pos, s->v_edge_pos);
yading@10:             src= s->edge_emu_buffer;
yading@10:             emu=1;
yading@10:         }
yading@10:     }
yading@10:     pix_op[dxy](dest, src, s->linesize, 8);
yading@10:     return emu;
yading@10: }
yading@10: 
yading@10: static av_always_inline
yading@10: void mpeg_motion_internal(MpegEncContext *s,
yading@10:                  uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                  int field_based, int bottom_field, int field_select,
yading@10:                  uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
yading@10:                  int motion_x, int motion_y, int h, int is_mpeg12, int mb_y)
yading@10: {
yading@10:     uint8_t *ptr_y, *ptr_cb, *ptr_cr;
yading@10:     int dxy, uvdxy, mx, my, src_x, src_y,
yading@10:         uvsrc_x, uvsrc_y, v_edge_pos, uvlinesize, linesize;
yading@10: 
yading@10: #if 0
yading@10: if(s->quarter_sample)
yading@10: {
yading@10:     motion_x>>=1;
yading@10:     motion_y>>=1;
yading@10: }
yading@10: #endif
yading@10: 
yading@10:     v_edge_pos = s->v_edge_pos >> field_based;
yading@10:     linesize   = s->current_picture.f.linesize[0] << field_based;
yading@10:     uvlinesize = s->current_picture.f.linesize[1] << field_based;
yading@10: 
yading@10:     dxy = ((motion_y & 1) << 1) | (motion_x & 1);
yading@10:     src_x = s->mb_x* 16               + (motion_x >> 1);
yading@10:     src_y =(   mb_y<<(4-field_based)) + (motion_y >> 1);
yading@10: 
yading@10:     if (!is_mpeg12 && s->out_format == FMT_H263) {
yading@10:         if((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based){
yading@10:             mx = (motion_x>>1)|(motion_x&1);
yading@10:             my = motion_y >>1;
yading@10:             uvdxy = ((my & 1) << 1) | (mx & 1);
yading@10:             uvsrc_x = s->mb_x* 8               + (mx >> 1);
yading@10:             uvsrc_y =(   mb_y<<(3-field_based))+ (my >> 1);
yading@10:         }else{
yading@10:             uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
yading@10:             uvsrc_x = src_x>>1;
yading@10:             uvsrc_y = src_y>>1;
yading@10:         }
yading@10:     }else if(!is_mpeg12 && s->out_format == FMT_H261){//even chroma mv's are full pel in H261
yading@10:         mx = motion_x / 4;
yading@10:         my = motion_y / 4;
yading@10:         uvdxy = 0;
yading@10:         uvsrc_x = s->mb_x*8 + mx;
yading@10:         uvsrc_y =    mb_y*8 + my;
yading@10:     } else {
yading@10:         if(s->chroma_y_shift){
yading@10:             mx = motion_x / 2;
yading@10:             my = motion_y / 2;
yading@10:             uvdxy = ((my & 1) << 1) | (mx & 1);
yading@10:             uvsrc_x = s->mb_x* 8               + (mx >> 1);
yading@10:             uvsrc_y =(   mb_y<<(3-field_based))+ (my >> 1);
yading@10:         } else {
yading@10:             if(s->chroma_x_shift){
yading@10:             //Chroma422
yading@10:                 mx = motion_x / 2;
yading@10:                 uvdxy = ((motion_y & 1) << 1) | (mx & 1);
yading@10:                 uvsrc_x = s->mb_x* 8           + (mx >> 1);
yading@10:                 uvsrc_y = src_y;
yading@10:             } else {
yading@10:             //Chroma444
yading@10:                 uvdxy = dxy;
yading@10:                 uvsrc_x = src_x;
yading@10:                 uvsrc_y = src_y;
yading@10:             }
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     ptr_y  = ref_picture[0] + src_y * linesize + src_x;
yading@10:     ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
yading@10:     ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
yading@10: 
yading@10:     if(   (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&1) - 16, 0)
yading@10:        || (unsigned)src_y > FFMAX(   v_edge_pos - (motion_y&1) - h , 0)){
yading@10:             if(is_mpeg12 || s->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
yading@10:                s->codec_id == AV_CODEC_ID_MPEG1VIDEO){
yading@10:                 av_log(s->avctx,AV_LOG_DEBUG,
yading@10:                         "MPEG motion vector out of boundary (%d %d)\n", src_x, src_y);
yading@10:                 return;
yading@10:             }
yading@10:             s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
yading@10:                                 17, 17+field_based,
yading@10:                                 src_x, src_y<<field_based,
yading@10:                                 s->h_edge_pos, s->v_edge_pos);
yading@10:             ptr_y = s->edge_emu_buffer;
yading@10:             if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
yading@10:                 uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize;
yading@10:                 s->vdsp.emulated_edge_mc(uvbuf ,
yading@10:                                     ptr_cb, s->uvlinesize,
yading@10:                                     9, 9+field_based,
yading@10:                                     uvsrc_x, uvsrc_y<<field_based,
yading@10:                                     s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:                 s->vdsp.emulated_edge_mc(uvbuf+16,
yading@10:                                     ptr_cr, s->uvlinesize,
yading@10:                                     9, 9+field_based,
yading@10:                                     uvsrc_x, uvsrc_y<<field_based,
yading@10:                                     s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:                 ptr_cb= uvbuf;
yading@10:                 ptr_cr= uvbuf+16;
yading@10:             }
yading@10:     }
yading@10: 
yading@10:     if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data
yading@10:         dest_y += s->linesize;
yading@10:         dest_cb+= s->uvlinesize;
yading@10:         dest_cr+= s->uvlinesize;
yading@10:     }
yading@10: 
yading@10:     if(field_select){
yading@10:         ptr_y += s->linesize;
yading@10:         ptr_cb+= s->uvlinesize;
yading@10:         ptr_cr+= s->uvlinesize;
yading@10:     }
yading@10: 
yading@10:     pix_op[0][dxy](dest_y, ptr_y, linesize, h);
yading@10: 
yading@10:     if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
yading@10:         pix_op[s->chroma_x_shift][uvdxy]
yading@10:                 (dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
yading@10:         pix_op[s->chroma_x_shift][uvdxy]
yading@10:                 (dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
yading@10:     }
yading@10:     if(!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
yading@10:          s->out_format == FMT_H261){
yading@10:         ff_h261_loop_filter(s);
yading@10:     }
yading@10: }
yading@10: /* apply one mpeg motion vector to the three components */
yading@10: static void mpeg_motion(MpegEncContext *s,
yading@10:                         uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                         int field_select, uint8_t **ref_picture,
yading@10:                         op_pixels_func (*pix_op)[4],
yading@10:                         int motion_x, int motion_y, int h, int mb_y)
yading@10: {
yading@10: #if !CONFIG_SMALL
yading@10:     if(s->out_format == FMT_MPEG1)
yading@10:         mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
yading@10:                     field_select, ref_picture, pix_op,
yading@10:                     motion_x, motion_y, h, 1, mb_y);
yading@10:     else
yading@10: #endif
yading@10:         mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
yading@10:                     field_select, ref_picture, pix_op,
yading@10:                     motion_x, motion_y, h, 0, mb_y);
yading@10: }
yading@10: 
yading@10: static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y,
yading@10:                               uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                               int bottom_field, int field_select,
yading@10:                               uint8_t **ref_picture,
yading@10:                               op_pixels_func (*pix_op)[4],
yading@10:                               int motion_x, int motion_y, int h, int mb_y)
yading@10: {
yading@10: #if !CONFIG_SMALL
yading@10:     if(s->out_format == FMT_MPEG1)
yading@10:         mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
yading@10:                     bottom_field, field_select, ref_picture, pix_op,
yading@10:                     motion_x, motion_y, h, 1, mb_y);
yading@10:     else
yading@10: #endif
yading@10:         mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
yading@10:                     bottom_field, field_select, ref_picture, pix_op,
yading@10:                     motion_x, motion_y, h, 0, mb_y);
yading@10: }
yading@10: 
yading@10: //FIXME move to dsputil, avg variant, 16x16 version
yading@10: static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
yading@10:     int x;
yading@10:     uint8_t * const top   = src[1];
yading@10:     uint8_t * const left  = src[2];
yading@10:     uint8_t * const mid   = src[0];
yading@10:     uint8_t * const right = src[3];
yading@10:     uint8_t * const bottom= src[4];
yading@10: #define OBMC_FILTER(x, t, l, m, r, b)\
yading@10:     dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
yading@10: #define OBMC_FILTER4(x, t, l, m, r, b)\
yading@10:     OBMC_FILTER(x         , t, l, m, r, b);\
yading@10:     OBMC_FILTER(x+1       , t, l, m, r, b);\
yading@10:     OBMC_FILTER(x  +stride, t, l, m, r, b);\
yading@10:     OBMC_FILTER(x+1+stride, t, l, m, r, b);
yading@10: 
yading@10:     x=0;
yading@10:     OBMC_FILTER (x  , 2, 2, 4, 0, 0);
yading@10:     OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
yading@10:     OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
yading@10:     OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
yading@10:     OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
yading@10:     OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
yading@10:     x+= stride;
yading@10:     OBMC_FILTER (x  , 1, 2, 5, 0, 0);
yading@10:     OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
yading@10:     OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
yading@10:     OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
yading@10:     x+= stride;
yading@10:     OBMC_FILTER4(x  , 1, 2, 5, 0, 0);
yading@10:     OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
yading@10:     OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
yading@10:     OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
yading@10:     x+= 2*stride;
yading@10:     OBMC_FILTER4(x  , 0, 2, 5, 0, 1);
yading@10:     OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
yading@10:     OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
yading@10:     OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
yading@10:     x+= 2*stride;
yading@10:     OBMC_FILTER (x  , 0, 2, 5, 0, 1);
yading@10:     OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
yading@10:     OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
yading@10:     OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
yading@10:     OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
yading@10:     OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
yading@10:     x+= stride;
yading@10:     OBMC_FILTER (x  , 0, 2, 4, 0, 2);
yading@10:     OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
yading@10:     OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
yading@10:     OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
yading@10: }
yading@10: 
yading@10: /* obmc for 1 8x8 luma block */
yading@10: static inline void obmc_motion(MpegEncContext *s,
yading@10:                                uint8_t *dest, uint8_t *src,
yading@10:                                int src_x, int src_y,
yading@10:                                op_pixels_func *pix_op,
yading@10:                                int16_t mv[5][2]/* mid top left right bottom*/)
yading@10: #define MID    0
yading@10: {
yading@10:     int i;
yading@10:     uint8_t *ptr[5];
yading@10: 
yading@10:     av_assert2(s->quarter_sample==0);
yading@10: 
yading@10:     for(i=0; i<5; i++){
yading@10:         if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
yading@10:             ptr[i]= ptr[MID];
yading@10:         }else{
yading@10:             ptr[i]= s->obmc_scratchpad + 8*(i&1) + s->linesize*8*(i>>1);
yading@10:             hpel_motion(s, ptr[i], src,
yading@10:                         src_x, src_y,
yading@10:                         pix_op,
yading@10:                         mv[i][0], mv[i][1]);
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     put_obmc(dest, ptr, s->linesize);
yading@10: }
yading@10: 
yading@10: static inline void qpel_motion(MpegEncContext *s,
yading@10:                                uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                                int field_based, int bottom_field, int field_select,
yading@10:                                uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
yading@10:                                qpel_mc_func (*qpix_op)[16],
yading@10:                                int motion_x, int motion_y, int h)
yading@10: {
yading@10:     uint8_t *ptr_y, *ptr_cb, *ptr_cr;
yading@10:     int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos, linesize, uvlinesize;
yading@10: 
yading@10:     dxy = ((motion_y & 3) << 2) | (motion_x & 3);
yading@10:     src_x = s->mb_x *  16                 + (motion_x >> 2);
yading@10:     src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
yading@10: 
yading@10:     v_edge_pos = s->v_edge_pos >> field_based;
yading@10:     linesize = s->linesize << field_based;
yading@10:     uvlinesize = s->uvlinesize << field_based;
yading@10: 
yading@10:     if(field_based){
yading@10:         mx= motion_x/2;
yading@10:         my= motion_y>>1;
yading@10:     }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
yading@10:         static const int rtab[8]= {0,0,1,1,0,0,0,1};
yading@10:         mx= (motion_x>>1) + rtab[motion_x&7];
yading@10:         my= (motion_y>>1) + rtab[motion_y&7];
yading@10:     }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
yading@10:         mx= (motion_x>>1)|(motion_x&1);
yading@10:         my= (motion_y>>1)|(motion_y&1);
yading@10:     }else{
yading@10:         mx= motion_x/2;
yading@10:         my= motion_y/2;
yading@10:     }
yading@10:     mx= (mx>>1)|(mx&1);
yading@10:     my= (my>>1)|(my&1);
yading@10: 
yading@10:     uvdxy= (mx&1) | ((my&1)<<1);
yading@10:     mx>>=1;
yading@10:     my>>=1;
yading@10: 
yading@10:     uvsrc_x = s->mb_x *  8                 + mx;
yading@10:     uvsrc_y = s->mb_y * (8 >> field_based) + my;
yading@10: 
yading@10:     ptr_y  = ref_picture[0] +   src_y *   linesize +   src_x;
yading@10:     ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
yading@10:     ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
yading@10: 
yading@10:     if(   (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&3) - 16, 0)
yading@10:        || (unsigned)src_y > FFMAX(   v_edge_pos - (motion_y&3) - h , 0)){
yading@10:         s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize,
yading@10:                             17, 17+field_based, src_x, src_y<<field_based,
yading@10:                             s->h_edge_pos, s->v_edge_pos);
yading@10:         ptr_y= s->edge_emu_buffer;
yading@10:         if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
yading@10:             uint8_t *uvbuf= s->edge_emu_buffer + 18*s->linesize;
yading@10:             s->vdsp.emulated_edge_mc(uvbuf, ptr_cb, s->uvlinesize,
yading@10:                                 9, 9 + field_based,
yading@10:                                 uvsrc_x, uvsrc_y<<field_based,
yading@10:                                 s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:             s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr, s->uvlinesize,
yading@10:                                 9, 9 + field_based,
yading@10:                                 uvsrc_x, uvsrc_y<<field_based,
yading@10:                                 s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:             ptr_cb= uvbuf;
yading@10:             ptr_cr= uvbuf + 16;
yading@10:         }
yading@10:     }
yading@10: 
yading@10:     if(!field_based)
yading@10:         qpix_op[0][dxy](dest_y, ptr_y, linesize);
yading@10:     else{
yading@10:         if(bottom_field){
yading@10:             dest_y += s->linesize;
yading@10:             dest_cb+= s->uvlinesize;
yading@10:             dest_cr+= s->uvlinesize;
yading@10:         }
yading@10: 
yading@10:         if(field_select){
yading@10:             ptr_y  += s->linesize;
yading@10:             ptr_cb += s->uvlinesize;
yading@10:             ptr_cr += s->uvlinesize;
yading@10:         }
yading@10:         //damn interlaced mode
yading@10:         //FIXME boundary mirroring is not exactly correct here
yading@10:         qpix_op[1][dxy](dest_y  , ptr_y  , linesize);
yading@10:         qpix_op[1][dxy](dest_y+8, ptr_y+8, linesize);
yading@10:     }
yading@10:     if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
yading@10:         pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
yading@10:         pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
yading@10:     }
yading@10: }
yading@10: 
yading@10: /**
yading@10:  * h263 chroma 4mv motion compensation.
yading@10:  */
yading@10: static void chroma_4mv_motion(MpegEncContext *s,
yading@10:                               uint8_t *dest_cb, uint8_t *dest_cr,
yading@10:                               uint8_t **ref_picture,
yading@10:                               op_pixels_func *pix_op,
yading@10:                               int mx, int my)
yading@10: {
yading@10:     int dxy, emu=0, src_x, src_y, offset;
yading@10:     uint8_t *ptr;
yading@10: 
yading@10:     /* In case of 8X8, we construct a single chroma motion vector
yading@10:        with a special rounding */
yading@10:     mx= ff_h263_round_chroma(mx);
yading@10:     my= ff_h263_round_chroma(my);
yading@10: 
yading@10:     dxy = ((my & 1) << 1) | (mx & 1);
yading@10:     mx >>= 1;
yading@10:     my >>= 1;
yading@10: 
yading@10:     src_x = s->mb_x * 8 + mx;
yading@10:     src_y = s->mb_y * 8 + my;
yading@10:     src_x = av_clip(src_x, -8, (s->width >> 1));
yading@10:     if (src_x == (s->width >> 1))
yading@10:         dxy &= ~1;
yading@10:     src_y = av_clip(src_y, -8, (s->height >> 1));
yading@10:     if (src_y == (s->height >> 1))
yading@10:         dxy &= ~2;
yading@10: 
yading@10:     offset = src_y * s->uvlinesize + src_x;
yading@10:     ptr = ref_picture[1] + offset;
yading@10:     if(s->flags&CODEC_FLAG_EMU_EDGE){
yading@10:         if(   (unsigned)src_x > FFMAX((s->h_edge_pos>>1) - (dxy &1) - 8, 0)
yading@10:            || (unsigned)src_y > FFMAX((s->v_edge_pos>>1) - (dxy>>1) - 8, 0)){
yading@10:             s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
yading@10:                                 9, 9, src_x, src_y,
yading@10:                                 s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:             ptr= s->edge_emu_buffer;
yading@10:             emu=1;
yading@10:         }
yading@10:     }
yading@10:     pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
yading@10: 
yading@10:     ptr = ref_picture[2] + offset;
yading@10:     if(emu){
yading@10:         s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize,
yading@10:                             9, 9, src_x, src_y,
yading@10:                             s->h_edge_pos>>1, s->v_edge_pos>>1);
yading@10:         ptr= s->edge_emu_buffer;
yading@10:     }
yading@10:     pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
yading@10: }
yading@10: 
yading@10: static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir){
yading@10:     /* fetch pixels for estimated mv 4 macroblocks ahead
yading@10:      * optimized for 64byte cache lines */
yading@10:     const int shift = s->quarter_sample ? 2 : 1;
yading@10:     const int mx= (s->mv[dir][0][0]>>shift) + 16*s->mb_x + 8;
yading@10:     const int my= (s->mv[dir][0][1]>>shift) + 16*s->mb_y;
yading@10:     int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
yading@10:     s->vdsp.prefetch(pix[0]+off, s->linesize, 4);
yading@10:     off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
yading@10:     s->vdsp.prefetch(pix[1]+off, pix[2]-pix[1], 2);
yading@10: }
yading@10: 
yading@10: /**
yading@10:  * motion compensation of a single macroblock
yading@10:  * @param s context
yading@10:  * @param dest_y luma destination pointer
yading@10:  * @param dest_cb chroma cb/u destination pointer
yading@10:  * @param dest_cr chroma cr/v destination pointer
yading@10:  * @param dir direction (0->forward, 1->backward)
yading@10:  * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
yading@10:  * @param pix_op halfpel motion compensation function (average or put normally)
yading@10:  * @param qpix_op qpel motion compensation function (average or put normally)
yading@10:  * the motion vectors are taken from s->mv and the MV type from s->mv_type
yading@10:  */
yading@10: static av_always_inline void MPV_motion_internal(MpegEncContext *s,
yading@10:                               uint8_t *dest_y, uint8_t *dest_cb,
yading@10:                               uint8_t *dest_cr, int dir,
yading@10:                               uint8_t **ref_picture,
yading@10:                               op_pixels_func (*pix_op)[4],
yading@10:                               qpel_mc_func (*qpix_op)[16], int is_mpeg12)
yading@10: {
yading@10:     int dxy, mx, my, src_x, src_y, motion_x, motion_y;
yading@10:     int mb_x, mb_y, i;
yading@10:     uint8_t *ptr, *dest;
yading@10: 
yading@10:     mb_x = s->mb_x;
yading@10:     mb_y = s->mb_y;
yading@10: 
yading@10:     prefetch_motion(s, ref_picture, dir);
yading@10: 
yading@10:     if(!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B){
yading@10:         LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
yading@10:         Picture *cur_frame = &s->current_picture;
yading@10:         const int xy= s->mb_x + s->mb_y*s->mb_stride;
yading@10:         const int mot_stride= s->b8_stride;
yading@10:         const int mot_xy= mb_x*2 + mb_y*2*mot_stride;
yading@10: 
yading@10:         av_assert2(!s->mb_skipped);
yading@10: 
yading@10:         AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy    ]);
yading@10:         AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
yading@10: 
yading@10:         AV_COPY32(mv_cache[2][1], cur_frame->motion_val[0][mot_xy + mot_stride    ]);
yading@10:         AV_COPY32(mv_cache[2][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
yading@10: 
yading@10:         AV_COPY32(mv_cache[3][1], cur_frame->motion_val[0][mot_xy + mot_stride    ]);
yading@10:         AV_COPY32(mv_cache[3][2], cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
yading@10: 
yading@10:         if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
yading@10:             AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
yading@10:             AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
yading@10:         }else{
yading@10:             AV_COPY32(mv_cache[0][1], cur_frame->motion_val[0][mot_xy - mot_stride    ]);
yading@10:             AV_COPY32(mv_cache[0][2], cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
yading@10:         }
yading@10: 
yading@10:         if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
yading@10:             AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
yading@10:             AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
yading@10:         }else{
yading@10:             AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
yading@10:             AV_COPY32(mv_cache[2][0], cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
yading@10:         }
yading@10: 
yading@10:         if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
yading@10:             AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
yading@10:             AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
yading@10:         }else{
yading@10:             AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
yading@10:             AV_COPY32(mv_cache[2][3], cur_frame->motion_val[0][mot_xy + 2 + mot_stride]);
yading@10:         }
yading@10: 
yading@10:         mx = 0;
yading@10:         my = 0;
yading@10:         for(i=0;i<4;i++) {
yading@10:             const int x= (i&1)+1;
yading@10:             const int y= (i>>1)+1;
yading@10:             int16_t mv[5][2]= {
yading@10:                 {mv_cache[y][x  ][0], mv_cache[y][x  ][1]},
yading@10:                 {mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
yading@10:                 {mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
yading@10:                 {mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
yading@10:                 {mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
yading@10:             //FIXME cleanup
yading@10:             obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
yading@10:                         ref_picture[0],
yading@10:                         mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
yading@10:                         pix_op[1],
yading@10:                         mv);
yading@10: 
yading@10:             mx += mv[0][0];
yading@10:             my += mv[0][1];
yading@10:         }
yading@10:         if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
yading@10:             chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
yading@10: 
yading@10:         return;
yading@10:     }
yading@10: 
yading@10:     switch(s->mv_type) {
yading@10:     case MV_TYPE_16X16:
yading@10:         if(s->mcsel){
yading@10:             if(s->real_sprite_warping_points==1){
yading@10:                 gmc1_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                             ref_picture);
yading@10:             }else{
yading@10:                 gmc_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                             ref_picture);
yading@10:             }
yading@10:         }else if(!is_mpeg12 && s->quarter_sample){
yading@10:             qpel_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                         0, 0, 0,
yading@10:                         ref_picture, pix_op, qpix_op,
yading@10:                         s->mv[dir][0][0], s->mv[dir][0][1], 16);
yading@10:         } else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
yading@10:                    s->mspel && s->codec_id == AV_CODEC_ID_WMV2) {
yading@10:             ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                         ref_picture, pix_op,
yading@10:                         s->mv[dir][0][0], s->mv[dir][0][1], 16);
yading@10:         }else
yading@10:         {
yading@10:             mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
yading@10:                         ref_picture, pix_op,
yading@10:                         s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y);
yading@10:         }
yading@10:         break;
yading@10:     case MV_TYPE_8X8:
yading@10:     if (!is_mpeg12) {
yading@10:         mx = 0;
yading@10:         my = 0;
yading@10:         if(s->quarter_sample){
yading@10:             for(i=0;i<4;i++) {
yading@10:                 motion_x = s->mv[dir][i][0];
yading@10:                 motion_y = s->mv[dir][i][1];
yading@10: 
yading@10:                 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
yading@10:                 src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
yading@10:                 src_y = mb_y * 16 + (motion_y >> 2) + (i >>1) * 8;
yading@10: 
yading@10:                 /* WARNING: do no forget half pels */
yading@10:                 src_x = av_clip(src_x, -16, s->width);
yading@10:                 if (src_x == s->width)
yading@10:                     dxy &= ~3;
yading@10:                 src_y = av_clip(src_y, -16, s->height);
yading@10:                 if (src_y == s->height)
yading@10:                     dxy &= ~12;
yading@10: 
yading@10:                 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
yading@10:                 if(s->flags&CODEC_FLAG_EMU_EDGE){
yading@10:                     if(   (unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x&3) - 8, 0)
yading@10:                        || (unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y&3) - 8, 0)){
yading@10:                         s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
yading@10:                                             s->linesize, 9, 9,
yading@10:                                             src_x, src_y,
yading@10:                                             s->h_edge_pos, s->v_edge_pos);
yading@10:                         ptr= s->edge_emu_buffer;
yading@10:                     }
yading@10:                 }
yading@10:                 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
yading@10:                 qpix_op[1][dxy](dest, ptr, s->linesize);
yading@10: 
yading@10:                 mx += s->mv[dir][i][0]/2;
yading@10:                 my += s->mv[dir][i][1]/2;
yading@10:             }
yading@10:         }else{
yading@10:             for(i=0;i<4;i++) {
yading@10:                 hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
yading@10:                             ref_picture[0],
yading@10:                             mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
yading@10:                             pix_op[1],
yading@10:                             s->mv[dir][i][0], s->mv[dir][i][1]);
yading@10: 
yading@10:                 mx += s->mv[dir][i][0];
yading@10:                 my += s->mv[dir][i][1];
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY))
yading@10:             chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
yading@10:     }
yading@10:         break;
yading@10:     case MV_TYPE_FIELD:
yading@10:         if (s->picture_structure == PICT_FRAME) {
yading@10:             if(!is_mpeg12 && s->quarter_sample){
yading@10:                 for(i=0; i<2; i++){
yading@10:                     qpel_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                                 1, i, s->field_select[dir][i],
yading@10:                                 ref_picture, pix_op, qpix_op,
yading@10:                                 s->mv[dir][i][0], s->mv[dir][i][1], 8);
yading@10:                 }
yading@10:             }else{
yading@10:                 /* top field */
yading@10:                 mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
yading@10:                                   0, s->field_select[dir][0],
yading@10:                                   ref_picture, pix_op,
yading@10:                                   s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y);
yading@10:                 /* bottom field */
yading@10:                 mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
yading@10:                                   1, s->field_select[dir][1],
yading@10:                                   ref_picture, pix_op,
yading@10:                                   s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
yading@10:             }
yading@10:         } else {
yading@10:             if(   s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != AV_PICTURE_TYPE_B && !s->first_field
yading@10:                || !ref_picture[0]){
yading@10:                 ref_picture = s->current_picture_ptr->f.data;
yading@10:             }
yading@10: 
yading@10:             mpeg_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                         s->field_select[dir][0],
yading@10:                         ref_picture, pix_op,
yading@10:                         s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y>>1);
yading@10:         }
yading@10:         break;
yading@10:     case MV_TYPE_16X8:
yading@10:         for(i=0; i<2; i++){
yading@10:             uint8_t ** ref2picture;
yading@10: 
yading@10:             if((s->picture_structure == s->field_select[dir][i] + 1
yading@10:                || s->pict_type == AV_PICTURE_TYPE_B || s->first_field) && ref_picture[0]){
yading@10:                 ref2picture= ref_picture;
yading@10:             }else{
yading@10:                 ref2picture = s->current_picture_ptr->f.data;
yading@10:             }
yading@10: 
yading@10:             mpeg_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                         s->field_select[dir][i],
yading@10:                         ref2picture, pix_op,
yading@10:                         s->mv[dir][i][0], s->mv[dir][i][1] + 16*i, 8, mb_y>>1);
yading@10: 
yading@10:             dest_y += 16*s->linesize;
yading@10:             dest_cb+= (16>>s->chroma_y_shift)*s->uvlinesize;
yading@10:             dest_cr+= (16>>s->chroma_y_shift)*s->uvlinesize;
yading@10:         }
yading@10:         break;
yading@10:     case MV_TYPE_DMV:
yading@10:         if(s->picture_structure == PICT_FRAME){
yading@10:             for(i=0; i<2; i++){
yading@10:                 int j;
yading@10:                 for(j=0; j<2; j++){
yading@10:                     mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
yading@10:                                       j, j^i, ref_picture, pix_op,
yading@10:                                       s->mv[dir][2*i + j][0],
yading@10:                                       s->mv[dir][2*i + j][1], 8, mb_y);
yading@10:                 }
yading@10:                 pix_op = s->hdsp.avg_pixels_tab;
yading@10:             }
yading@10:         }else{
yading@10:             if (!ref_picture[0]) {
yading@10:                 ref_picture = s->current_picture_ptr->f.data;
yading@10:             }
yading@10:             for(i=0; i<2; i++){
yading@10:                 mpeg_motion(s, dest_y, dest_cb, dest_cr,
yading@10:                             s->picture_structure != i+1,
yading@10:                             ref_picture, pix_op,
yading@10:                             s->mv[dir][2*i][0],s->mv[dir][2*i][1],16, mb_y>>1);
yading@10: 
yading@10:                 // after put we make avg of the same block
yading@10:                 pix_op=s->hdsp.avg_pixels_tab;
yading@10: 
yading@10:                 //opposite parity is always in the same frame if this is second field
yading@10:                 if(!s->first_field){
yading@10:                     ref_picture = s->current_picture_ptr->f.data;
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:     break;
yading@10:     default: av_assert2(0);
yading@10:     }
yading@10: }
yading@10: 
yading@10: void ff_MPV_motion(MpegEncContext *s,
yading@10:                    uint8_t *dest_y, uint8_t *dest_cb,
yading@10:                    uint8_t *dest_cr, int dir,
yading@10:                    uint8_t **ref_picture,
yading@10:                    op_pixels_func (*pix_op)[4],
yading@10:                    qpel_mc_func (*qpix_op)[16])
yading@10: {
yading@10: #if !CONFIG_SMALL
yading@10:     if(s->out_format == FMT_MPEG1)
yading@10:         MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
yading@10:                             ref_picture, pix_op, qpix_op, 1);
yading@10:     else
yading@10: #endif
yading@10:         MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
yading@10:                             ref_picture, pix_op, qpix_op, 0);
yading@10: }