Index: libmpcodecs/vf_expand.c
===================================================================
--- libmpcodecs/vf_expand.c	(revision 20022)
+++ libmpcodecs/vf_expand.c	(working copy)
@@ -28,7 +28,7 @@
     int exp_w,exp_h;
     int exp_x,exp_y;
     int osd;
-    double aspect;
+    double aspect, confaspect;
     int round;
     unsigned char* fb_ptr;
     int first_slice;
@@ -36,7 +36,7 @@
   -1,-1,
   -1,-1,
   0,
-  0.,
+  0.,0.,
   1,
   NULL,
   0
@@ -183,6 +201,7 @@
       else if ( vf->priv->exp_h < -1 ) vf->priv->exp_h=height - vf->priv->exp_h;
         else if( vf->priv->exp_h<height ) vf->priv->exp_h=height;
 #endif
+    vf->priv->aspect = vf->priv->confaspect;
     if (vf->priv->aspect) {
         vf->priv->aspect *= ((double)width/height) / ((double)d_width/d_height);
         if (vf->priv->exp_h < vf->priv->exp_w / vf->priv->aspect) {
@@ -401,7 +420,7 @@
     vf->priv->exp_x,
     vf->priv->exp_y,
     vf->priv->osd,
-    vf->priv->aspect,
+    vf->priv->confaspect,
     vf->priv->round);
     return 1;
 }
@@ -413,7 +432,7 @@
   {"x", ST_OFF(exp_x), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
   {"y", ST_OFF(exp_y), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
   {"osd", ST_OFF(osd), CONF_TYPE_FLAG, 0 , 0, 1, NULL},
-  {"aspect", ST_OFF(aspect), CONF_TYPE_DOUBLE, M_OPT_MIN, 0, 0, NULL},
+  {"aspect", ST_OFF(confaspect), CONF_TYPE_DOUBLE, M_OPT_MIN, 0, 0, NULL},
   {"round", ST_OFF(round), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL},
   { NULL, NULL, 0, 0, 0, 0,  NULL }
 };