Add callback to vbi-opaque setting to change it at runtime from the gui.

modules/codec/zvbi.c

@@ -103,6 +103,9 @@ static void event_handler(vbi_event *ev, void *user_data);
 static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
                         vlc_value_t oldval, vlc_value_t newval, void *p_data );
 
+static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
+                   vlc_value_t oldval, vlc_value_t newval, void *p_data );
+
 /*****************************************************************************
  * Open: probe the decoder and return score
  *****************************************************************************
@@ -147,7 +150,7 @@ static int Open( vlc_object_t *p_this )
     var_AddCallback( p_dec->p_libvlc, "vbi-page", RequestPage, p_sys );
 
     p_sys->b_opaque = var_CreateGetBool( p_dec, "vbi-opaque" );
-
+    var_AddCallback( p_dec, "vbi-opaque", Opaque, p_sys );
     return VLC_SUCCESS;
 }
 
@@ -374,3 +377,13 @@ static int RequestPage( vlc_object_t *p_this, char const *psz_cmd,
     return VLC_SUCCESS;
 }
 
+static int Opaque( vlc_object_t *p_this, char const *psz_cmd,
+                   vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+    decoder_sys_t *p_sys = p_data;
+
+    if( p_sys )
+        p_sys->b_opaque = newval.b_bool;
+    return VLC_SUCCESS;
+}
+