x264.c: move mbtree closer to other bitrate options

(cherry picked from commit 140a7dbc)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/codec/x264.c

@@ -847,6 +847,9 @@ static int  Open ( vlc_object_t *p_this )
     p_sys->param.rc.i_vbv_max_bitrate = var_GetInteger( p_enc, SOUT_CFG_PREFIX "vbv-maxrate" );
 
 
+    if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" ) )
+       p_sys->param.rc.b_mb_tree = var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" );
+
     if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" ) )
         p_sys->param.b_cabac = var_GetBool( p_enc, SOUT_CFG_PREFIX "cabac" );
 
@@ -1218,9 +1221,6 @@ static int  Open ( vlc_object_t *p_this )
         p_sys->param.rc.b_stat_read = i_val & 2;
     }
 
-    if( !var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" ) )
-       p_sys->param.rc.b_mb_tree = var_GetBool( p_enc, SOUT_CFG_PREFIX "mbtree" );
-
     /* We need to initialize pthreadw32 before we open the encoder,
        but only once for the whole application. Since pthreadw32
        doesn't keep a refcount, do it ourselves. */