@@ -15,7 +15,7 @@ extern "C" {

 #define FFMPEG_VERSION_INT     0x000408

 #define FFMPEG_VERSION         "0.4.8"

-#define LIBAVCODEC_BUILD       4682

+#define LIBAVCODEC_BUILD       4683

 #define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT

 #define LIBAVCODEC_VERSION     FFMPEG_VERSION

@@ -215,6 +215,7 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,

 #define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed 

 #define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 

 #define CODEC_FLAG_GMC    0x0020  ///< use GMC 

+#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 

 #define CODEC_FLAG_PART   0x0080  ///< use data partitioning 

 /* parent program gurantees that the input for b-frame containing streams is not written to 

    for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */

@@ -830,6 +830,7 @@ static inline int h263_mv4_search(MpegEncContext *s, int xmin, int ymin, int xma

     int P[10][2];

     int dmin_sum=0, mx4_sum=0, my4_sum=0;

     uint8_t * const mv_penalty= s->me.mv_penalty[s->f_code] + MAX_MV;

+    int same=1;

     for(block=0; block<4; block++){

         int mx4, my4;

@@ -928,8 +929,13 @@ static inline int h263_mv4_search(MpegEncContext *s, int xmin, int ymin, int xma

         s->motion_val[ s->block_index[block] ][0]= mx4;

         s->motion_val[ s->block_index[block] ][1]= my4;

+

+        if(mx4 != mx || my4 != my) same=0;

     }

+    if(same)

+        return INT_MAX;

+    

     if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){

         dmin_sum += s->dsp.mb_cmp[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*16*s->linesize, s->me.scratchpad, s->linesize);

     }

@@ -1098,14 +1104,17 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,

             mb_type|= MB_TYPE_INTER;

             s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,

 				   pred_x, pred_y, &s->last_picture, 0, 0, mv_penalty);

+            if(s->flags&CODEC_FLAG_MV0)

+                if(mx || my)

+                    mb_type |= MB_TYPE_SKIPED; //FIXME check difference

         }else{

             mx <<=shift;

             my <<=shift;

         }

         if((s->flags&CODEC_FLAG_4MV)

            && !s->me.skip && varc>50 && vard>10){

-            h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift);

-            mb_type|=MB_TYPE_INTER4V;

+            if(h263_mv4_search(s, rel_xmin, rel_ymin, rel_xmax, rel_ymax, mx, my, shift) < INT_MAX)

+                mb_type|=MB_TYPE_INTER4V;

             set_p_mv_tables(s, mx, my, 0);

         }else

@@ -3676,6 +3676,15 @@ static void encode_picture(MpegEncContext *s, int picture_number)

                     encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb, 

                                  &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);

                 }

+                if(mb_type&MB_TYPE_SKIPED){

+                    s->mv_dir = MV_DIR_FORWARD;

+                    s->mv_type = MV_TYPE_16X16;

+                    s->mb_intra= 0;

+                    s->mv[0][0][0] = 0;

+                    s->mv[0][0][1] = 0;

+                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_SKIPED, pb, pb2, tex_pb, 

+                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);

+                }

                 if(mb_type&MB_TYPE_INTER4V){                 

                     s->mv_dir = MV_DIR_FORWARD;

                     s->mv_type = MV_TYPE_8X8;