diff -urN MPlayer-1.0pre8.orig/libmpcodecs/vf_expand.c MPlayer-1.0pre8/libmpcodecs/vf_expand.c
--- MPlayer-1.0pre8.orig/libmpcodecs/vf_expand.c	2006-06-11 20:35:41.000000000 +0200
+++ MPlayer-1.0pre8/libmpcodecs/vf_expand.c	2006-06-28 20:28:03.241518750 +0200
@@ -177,10 +177,14 @@
     if(vf->priv->exp_h<height) vf->priv->exp_h=height;
 #else
     if ( vf->priv->exp_w == -1 ) vf->priv->exp_w=width;
-      else if (vf->priv->exp_w < -1 ) vf->priv->exp_w=width - vf->priv->exp_w;
+    else if ( vf->priv->exp_w == -2 ) vf->priv->exp_w=FFMAX(width, height*4.0/3);
+    else if ( vf->priv->exp_w == -3 ) vf->priv->exp_w=FFMAX(width, height*16.0/9);
+      else if (vf->priv->exp_w < -3 ) vf->priv->exp_w=width - vf->priv->exp_w;
         else if ( vf->priv->exp_w<width ) vf->priv->exp_w=width;
     if ( vf->priv->exp_h == -1 ) vf->priv->exp_h=height;
-      else if ( vf->priv->exp_h < -1 ) vf->priv->exp_h=height - vf->priv->exp_h;
+    else if ( vf->priv->exp_h == -2 ) vf->priv->exp_h=FFMAX(height, width*3.0/4);
+    else if ( vf->priv->exp_h == -3 ) vf->priv->exp_h=FFMAX(height, width*9.0/16);
+      else if ( vf->priv->exp_h < -3 ) vf->priv->exp_h=height - vf->priv->exp_h;
         else if( vf->priv->exp_h<height ) vf->priv->exp_h=height;
 #endif
     if (vf->priv->aspect) {