--- /dev/null
+/*****************************************************************************
+ * services_discovery.c : Services discovery using lua scripts
+ *****************************************************************************
+ * Copyright (C) 2009 the VideoLAN team
+ *
+ * Authors: Fabio Ritrovato <exsephiroth87 at videolan dot org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_services_discovery.h>
+#include <vlc_playlist.h>
+
+#include "vlc.h"
+#include "libs.h"
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static void *Run( void * );
+
+static const char * const ppsz_sd_options[] = { "sd", NULL };
+
+/*****************************************************************************
+ * Local structures
+ *****************************************************************************/
+struct services_discovery_sys_t
+{
+ lua_State *L;
+ char *psz_filename;
+ vlc_thread_t thread;
+};
+static const luaL_Reg p_reg[] = { { NULL, NULL } };
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static char *FindFile( vlc_object_t *p_this, const char *psz_name )
+{
+ char *ppsz_dir_list[] = { NULL, NULL, NULL, NULL };
+ char **ppsz_dir;
+ vlclua_dir_list( p_this, "sd", ppsz_dir_list );
+ for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
+ {
+ char *psz_filename;
+ FILE *fp;
+ if( asprintf( &psz_filename, "%s"DIR_SEP"%s.lua", *ppsz_dir,
+ psz_name ) < 0 )
+ {
+ vlclua_dir_list_free( ppsz_dir_list );
+ return NULL;
+ }
+ fp = utf8_fopen( psz_filename, "r" );
+ if( fp )
+ {
+ fclose( fp );
+ vlclua_dir_list_free( ppsz_dir_list );
+ return psz_filename;
+ }
+ free( psz_filename );
+ }
+ vlclua_dir_list_free( ppsz_dir_list );
+ return NULL;
+}
+
+/*****************************************************************************
+ * Open: initialize and create stuff
+ *****************************************************************************/
+int Open_LuaSD( vlc_object_t *p_this )
+{
+ services_discovery_t *p_sd = ( services_discovery_t * )p_this;
+ services_discovery_sys_t *p_sys;
+ lua_State *L;
+ char *psz_name = NULL;
+
+ config_ChainParse( p_sd, "lua-", ppsz_sd_options, p_sd->p_cfg );
+ psz_name = var_CreateGetString( p_sd, "lua-sd" );
+ if( !( p_sys = malloc( sizeof( services_discovery_sys_t ) ) ) )
+ return VLC_ENOMEM;
+ p_sd->p_sys = p_sys;
+ p_sys->psz_filename = FindFile( p_this, psz_name );
+ if( !p_sys->psz_filename )
+ {
+ msg_Err( p_sd, "Couldn't find lua services discovery script \"%s\".",
+ psz_name );
+ free( psz_name );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ free( psz_name );
+ L = luaL_newstate();
+ if( !L )
+ {
+ msg_Err( p_sd, "Could not create new Lua State" );
+ free( p_sys->psz_filename );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ luaL_openlibs( L );
+ luaL_register( L, "vlc", p_reg );
+ lua_pushlightuserdata( L, p_sd );
+ lua_setfield( L, -2, "private" );
+ luaopen_input( L );
+ luaopen_msg( L );
+ luaopen_misc( L );
+ luaopen_net( L );
+ luaopen_object( L );
+ luaopen_playlist( L );
+ luaopen_sd( L );
+ luaopen_strings( L );
+ luaopen_variables( L );
+ luaopen_stream( L );
+ lua_pop( L, 1 );
+ if( luaL_dofile( L, p_sys->psz_filename ) )
+ {
+
+ msg_Err( p_sd, "Error loading script %s: %s", p_sys->psz_filename,
+ lua_tostring( L, lua_gettop( L ) ) );
+ lua_pop( L, 1 );
+ free( p_sys->psz_filename );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ p_sys->L = L;
+ if( vlc_clone (&p_sd->p_sys->thread, Run, p_sd, VLC_THREAD_PRIORITY_LOW) )
+ {
+ free( p_sys->psz_filename );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Close: cleanup
+ *****************************************************************************/
+void Close_LuaSD( vlc_object_t *p_this )
+{
+ services_discovery_t *p_sd = ( services_discovery_t * )p_this;
+
+ vlc_join (p_sd->p_sys->thread, NULL);
+ free( p_sd->p_sys->psz_filename );
+ lua_close( p_sd->p_sys->L );
+ free( p_sd->p_sys );
+}
+
+/*****************************************************************************
+ * Run: Thread entry-point
+ ****************************************************************************/
+static void* Run( void *data )
+{
+ services_discovery_t *p_sd = ( services_discovery_t * )data;
+ services_discovery_sys_t *p_sys = p_sd->p_sys;
+ lua_State *L = p_sys->L;
+
+ lua_getglobal( L, "main" );
+ if( !lua_isfunction( L, lua_gettop( L ) ) || lua_pcall( L, 0, 1, 0 ) )
+ {
+ msg_Err( p_sd, "Error while runing script %s, "
+ "function main(): %s", p_sys->psz_filename,
+ lua_tostring( L, lua_gettop( L ) ) );
+ lua_pop( L, 1 );
+ return NULL;
+ }
+ //msg_Info( p_sd, "LuaSD script loaded: %s", p_sd->psz_name );
+ return NULL;
+}
#include <vlc_meta.h>
#include <vlc_charset.h>
#include <vlc_aout.h>
+#include <vlc_services_discovery.h>
#include <lua.h> /* Low level lua C API */
#include <lauxlib.h> /* Higher level C API */
/*****************************************************************************
* Module descriptor
*****************************************************************************/
-
#define INTF_TEXT N_("Lua interface")
#define INTF_LONGTEXT N_("Lua interface module to load")
#define CONFIG_TEXT N_("Lua interface configuration")
#define CONFIG_LONGTEXT N_("Lua interface configuration string. Format is: '[\"<interface module name>\"] = { <option> = <value>, ...}, ...'.")
+static int vlc_sd_probe_Open( vlc_object_t * );
+
vlc_module_begin ()
set_shortname( N_( "Lua Art" ) )
set_description( N_("Fetch artwork using lua scripts") )
add_shortcut( "luaextension" )
set_capability( "extension", 1 )
set_callbacks( Open_Extension, Close_Extension )
+
+ add_submodule ()
+ set_description( N_("Lua SD Module") )
+ add_shortcut( "luasd" )
+ set_capability( "services_discovery", 0 )
+ add_string( "lua-sd", "", NULL, "", "", false )
+ set_callbacks( Open_LuaSD, Close_LuaSD )
+
+ VLC_SD_PROBE_SUBMODULE
+
vlc_module_end ()
/*****************************************************************************
}
return i_count;
}
+
+static int vlc_sd_probe_Open( vlc_object_t *obj )
+{
+ vlc_probe_t *probe = (vlc_probe_t *)obj;
+ char **ppsz_filelist = NULL;
+ char **ppsz_fileend = NULL;
+ char **ppsz_file;
+ char *psz_name;
+ char *ppsz_dir_list[] = { NULL, NULL, NULL, NULL };
+ char **ppsz_dir;
+ vlclua_dir_list( obj, "sd", ppsz_dir_list );
+ for( ppsz_dir = ppsz_dir_list; *ppsz_dir; ppsz_dir++ )
+ {
+ int i_files;
+ if( ppsz_filelist )
+ {
+ for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
+ ppsz_file++ )
+ free( *ppsz_file );
+ free( ppsz_filelist );
+ ppsz_filelist = NULL;
+ }
+ i_files = utf8_scandir( *ppsz_dir, &ppsz_filelist, file_select,
+ file_compare );
+ if( i_files < 1 ) continue;
+ ppsz_fileend = ppsz_filelist + i_files;
+ for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend; ppsz_file++ )
+ {
+ char *psz_filename;
+ if( asprintf( &psz_filename,
+ "%s" DIR_SEP "%s", *ppsz_dir, *ppsz_file ) < 0 )
+ {
+ goto error;
+ }
+ FILE *fd = utf8_fopen( psz_filename, "r" );
+ if( fd )
+ {
+ char description[256];
+ if( fgets( description, 256, fd ) != NULL )
+ {
+ char *temp = strchr( description, '\n' );
+ if( temp )
+ *temp = '\0';
+ *(*ppsz_file + strlen(*ppsz_file) - 4 )= '\0';
+ if( asprintf( &psz_name, "lua{sd=%s}", *ppsz_file ) < 0 )
+ {
+ fclose( fd );
+ free( psz_filename );
+ goto error;
+ }
+ vlc_sd_probe_Add( probe, psz_name,
+ description + 17 );
+ free( psz_name );
+ }
+ fclose( fd );
+ }
+ free( psz_filename );
+ }
+ }
+ if( ppsz_filelist )
+ {
+ for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
+ ppsz_file++ )
+ free( *ppsz_file );
+ free( ppsz_filelist );
+ }
+ vlclua_dir_list_free( ppsz_dir_list );
+ return VLC_PROBE_CONTINUE;
+error:
+ if( ppsz_filelist )
+ {
+ for( ppsz_file = ppsz_filelist; ppsz_file < ppsz_fileend;
+ ppsz_file++ )
+ free( *ppsz_file );
+ free( ppsz_filelist );
+ }
+ vlclua_dir_list_free( ppsz_dir_list );
+ return VLC_ENOMEM;
+}
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