fix motion vectors for old version

Originally committed as revision 10096 to svn://svn.ffmpeg.org/ffmpeg/trunk
18 years ago · 9ac34d947a
parent cf786021a6
commit 9ac34d947a
1 changed files with 4 additions and 1 deletions
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@ -248,7 +248,10 @@ static void init_mv(FourXContext *f){
    int i;

    for(i=0; i<256; i++){
-        f->mv[i] = mv[i][0] + mv[i][1]*f->current_picture.linesize[0]/2;
+        if(f->version)
+            f->mv[i] = mv[i][0]   + mv[i][1]  *f->current_picture.linesize[0]/2;
+        else
+            f->mv[i] = (i&15) - 8 + ((i>>4)-8)*f->current_picture.linesize[0]/2;
    }
 }