Make sure that the playlist item has been preparsed first (and don't get stuck...

Make sure that the playlist item has been preparsed first (and don't get stuck in an infinite loop). Note that libs/input.c is a mess and would need to be cleanup before we release 1.1.

modules/misc/lua/libs/input.c

@@ -311,6 +311,12 @@ static int vlclua_input_item_metas( lua_State *L )
     return 1;
 }
 
+static int vlclua_input_item_is_preparsed( lua_State *L )
+{
+    lua_pushboolean( L, input_item_IsPreparsed( vlclua_input_item_get_internal( L ) ) );
+    return 1;
+}
+
 static int vlclua_input_item_set_meta( lua_State *L )
 {
     input_item_t *p_item = vlclua_input_item_get_internal( L );
@@ -381,6 +387,7 @@ void luaopen_input( lua_State *L )
 }
 
 static const luaL_Reg vlclua_input_item_reg[] = {
+    { "is_preparsed", vlclua_input_item_is_preparsed },
     { "metas", vlclua_input_item_metas },
     { "set_meta", vlclua_input_item_set_meta },
     { NULL, NULL }

share/lua/intf/dumpmeta.lua

@@ -22,18 +22,20 @@
 --]==========================================================================]
 
 --[[ to dump meta data information in the debug output, run:
-       vlc -I lua --lua-intf dumpmeta coolmusic.mp3
+       vlc -I lua --lua-intf dumpmeta -v=0 coolmusic.mp3
 --]]
 
-local meta
+local item
 repeat
-    meta = vlc.input.metas()
-until meta
+    item = vlc.input.item()
+until (item and item:is_preparsed()) or vlc.misc.should_die()
 
+local meta = item:metas()
 vlc.msg.info("Dumping meta data")
 if meta then
     for key, value in pairs(meta) do
         vlc.msg.info(key..": "..value)
     end
 end
+
 vlc.misc.quit()