/*****************************************************************************
* meta.c: Get meta/artwork using lua scripts
*****************************************************************************
- * Copyright (C) 2007 the VideoLAN team
+ * Copyright (C) 2007-2008 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan tod org>
# include "config.h"
#endif
-#include <vlc/vlc.h>
+#include <vlc_common.h>
#include <vlc_input.h>
#include <vlc_playlist.h>
#include <vlc_meta.h>
#include <vlc_charset.h>
#include "vlc.h"
+#include "libs.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static int fetch_meta( vlc_object_t *p_this, const char * psz_filename,
- lua_State * L, void * user_data );
static int fetch_art( vlc_object_t *p_this, const char * psz_filename,
lua_State * L, void * user_data );
static lua_State *vlclua_meta_init( vlc_object_t *p_this,
input_item_t * p_item );
-/*****************************************************************************
- * Lua function bridge
- *****************************************************************************/
-/* Functions to register */
-static luaL_Reg p_reg[] =
-{
- /* TODO: make an object out of the stream stuff, so we can do something
- * like:
- *
- * s = vlc.stream_new( "http://www.videolan.org" )
- * page = s:read( 2^16 )
- * s:delete()
- *
- * instead of (which could be problematic since we don't check if
- * s is really a stream object):
- *
- * s = vlc.stream_new( "http://www.videolan.org" )
- * page = vlc.stream_read( s, 2^16 )
- * vlc.stream_delete( s )
- */
- { "stream_new", vlclua_stream_new },
- { "stream_read", vlclua_stream_read },
- { "stream_readline", vlclua_stream_readline },
- { "stream_delete", vlclua_stream_delete },
- { "decode_uri", vlclua_decode_uri },
- { "resolve_xml_special_chars", vlclua_resolve_xml_special_chars },
- { "msg_dbg", vlclua_msg_dbg },
- { "msg_warn", vlclua_msg_warn },
- { "msg_err", vlclua_msg_err },
- { "msg_info", vlclua_msg_info },
- { NULL, NULL }
-};
-
/*****************************************************************************
* Init lua
*****************************************************************************/
+static luaL_Reg p_reg[] = { { NULL, NULL } };
+
static lua_State * vlclua_meta_init( vlc_object_t *p_this, input_item_t * p_item )
{
lua_State * L = luaL_newstate();
luaL_register( L, "vlc", p_reg );
+ luaopen_msg( L );
+ luaopen_stream( L );
+ luaopen_strings( L );
+
lua_pushlightuserdata( L, p_this );
lua_setfield( L, -2, "private" );
return i_ret;
}
-/*****************************************************************************
- * Called through lua_scripts_batch_execute to call 'fetch_meta' on the script
- * pointed by psz_filename.
- *****************************************************************************/
-static int fetch_meta( vlc_object_t *p_this, const char * psz_filename,
- lua_State * L, void * user_data )
-{
- input_item_t * p_input = user_data;
-
- /* In lua, setting a variable to nil is equivalent to deleting it */
- lua_pushnil( L );
- lua_setglobal( L, "fetch_meta" );
-
- /* Load and run the script(s) */
- if( luaL_dofile( L, psz_filename ) )
- {
- msg_Warn( p_this, "Error loading script %s: %s", psz_filename,
- lua_tostring( L, lua_gettop( L ) ) );
- lua_pop( L, 1 );
- return VLC_EGENERIC;
- }
-
- lua_getglobal( L, "fetch_meta" );
-
- if( !lua_isfunction( L, lua_gettop( L ) ) )
- {
- msg_Warn( p_this, "Error while runing script %s, "
- "function fetch_meta() not found", psz_filename );
- lua_pop( L, 1 );
- return VLC_EGENERIC;
- }
-
- if( lua_pcall( L, 0, 1, 0 ) )
- {
- msg_Warn( p_this, "Error while runing script %s, "
- "function fetch_meta(): %s", psz_filename,
- lua_tostring( L, lua_gettop( L ) ) );
- lua_pop( L, 1 );
- return VLC_EGENERIC;
- }
-
-
- if( lua_gettop( L ) )
- {
- if( lua_istable( L, -1 ) )
- {
- /* ... item */
- vlclua_read_meta_data( p_this, L, p_input );
- vlclua_read_custom_meta_data( p_this, L, p_input );
- }
- else
- {
- msg_Err( p_this, "Lua playlist script %s: "
- "didn't return a table", psz_filename );
- }
- }
- else
- {
- msg_Err( p_this, "Script went completely foobar" );
- }
-
- /* We tell the batch thing to continue, hence all script
- * will get the change to add its meta. This behaviour could
- * be changed. */
- return VLC_EGENERIC;
-}
-
-/*****************************************************************************
- * Module entry point for meta.
- *****************************************************************************/
-int E_(FindMeta)( vlc_object_t *p_this )
-{
- meta_engine_t *p_me = (meta_engine_t *)p_this;
- input_item_t *p_item = p_me->p_item;
- lua_State *L = vlclua_meta_init( p_this, p_item );
-
- int i_ret = vlclua_scripts_batch_execute( p_this, "meta", &fetch_meta, L, p_item );
- lua_close( L );
- return i_ret;
-}
-
/*****************************************************************************
* Module entry point for art.
*****************************************************************************/
-int E_(FindArt)( vlc_object_t *p_this )
+int FindArt( vlc_object_t *p_this )
{
playlist_t *p_playlist = (playlist_t *)p_this;
input_item_t *p_item = (input_item_t *)(p_playlist->p_private);
projects / vlc / blobdiff