diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 170513dc2798ff8f63e5d0f047441904a2b2cc3e..2a945c6edab0e5b106afa890edb4ee4933951370 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -5339,9 +5339,11 @@ static void mpeg4_decode_sprite_trajectory(MpegEncContext * s, GetBitContext *gb
         }
         skip_bits1(gb); /* marker bit */
 //printf("%d %d %d %d\n", x, y, i, s->sprite_warping_accuracy);
-        d[i][0]= x;
-        d[i][1]= y;
+        s->sprite_traj[i][0]= d[i][0]= x;
+        s->sprite_traj[i][1]= d[i][1]= y;
     }
+    for(; i<4; i++)
+        s->sprite_traj[i][0]= s->sprite_traj[i][1]= 0;
 
     while((1<<alpha)<w) alpha++;
     while((1<<beta )<h) beta++; // there seems to be a typo in the mpeg4 std for the definition of w' and h'
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index ef40083e90c525c1c66383ab784a377de5247c8a..615c0faf2252738f86e0ca442cdbf33a5f06f2ca 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -519,6 +519,7 @@ typedef struct MpegEncContext {
     int sprite_brightness_change;
     int num_sprite_warping_points;
     int real_sprite_warping_points;
+    uint16_t sprite_traj[4][2];      ///< sprite trajectory points
     int sprite_offset[2][2];         ///< sprite offset[isChroma][isMVY]
     int sprite_delta[2][2];          ///< sprite_delta [isY][isMVY]
     int sprite_shift[2];             ///< sprite shift [isChroma]