vlm.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:4k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * vlm.c: Generic lua VLM wrapper
- *****************************************************************************
- * Copyright (C) 2007-2008 the VideoLAN team
- * $Id: 32f448e024fec9daf2abc836c1ca3380b340173d $
- *
- * Authors: Antoine Cellerier <dionoea at videolan tod 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.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifndef _GNU_SOURCE
- # define _GNU_SOURCE
- #endif
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_vlm.h>
- #include <lua.h> /* Low level lua C API */
- #include <lauxlib.h> /* Higher level C API */
- #include "../vlc.h"
- #include "../libs.h"
- /*****************************************************************************
- *
- *****************************************************************************/
- #ifdef ENABLE_VLM
- static int vlclua_vlm_delete( lua_State * );
- static int vlclua_vlm_execute_command( lua_State * );
- static const luaL_Reg vlclua_vlm_reg[] = {
- { "execute_command", vlclua_vlm_execute_command },
- { NULL, NULL }
- };
- static int vlclua_vlm_new( lua_State *L )
- {
- vlc_object_t *p_this = vlclua_get_this( L );
- vlm_t *p_vlm = vlm_New( p_this );
- if( !p_vlm )
- return luaL_error( L, "Cannot start VLM." );
- vlm_t **pp_vlm = lua_newuserdata( L, sizeof( vlm_t * ) );
- *pp_vlm = p_vlm;
- if( luaL_newmetatable( L, "vlm" ) )
- {
- lua_newtable( L );
- luaL_register( L, NULL, vlclua_vlm_reg );
- lua_setfield( L, -2, "__index" );
- lua_pushcfunction( L, vlclua_vlm_delete );
- lua_setfield( L, -2, "__gc" );
- }
- lua_setmetatable( L, -2 );
- return 1;
- }
- static int vlclua_vlm_delete( lua_State *L )
- {
- vlm_t **pp_vlm = (vlm_t**)luaL_checkudata( L, 1, "vlm" );
- vlm_Delete( *pp_vlm );
- return 0;
- }
- static void push_message( lua_State *L, vlm_message_t *message )
- {
- lua_createtable( L, 0, 2 );
- lua_pushstring( L, message->psz_name );
- lua_setfield( L, -2, "name" );
- if( message->i_child > 0 )
- {
- int i;
- lua_createtable( L, message->i_child, 0 );
- for( i = 0; i < message->i_child; i++ )
- {
- lua_pushinteger( L, i+1 );
- push_message( L, message->child[i] );
- lua_settable( L, -3 );
- }
- lua_setfield( L, -2, "children" );
- }
- else
- {
- lua_pushstring( L, message->psz_value );
- lua_setfield( L, -2, "value" );
- }
- }
- static int vlclua_vlm_execute_command( lua_State *L )
- {
- vlm_t **pp_vlm = (vlm_t**)luaL_checkudata( L, 1, "vlm" );
- const char *psz_command = luaL_checkstring( L, 2 );
- vlm_message_t *message;
- int i_ret;
- i_ret = vlm_ExecuteCommand( *pp_vlm, psz_command, &message );
- lua_settop( L, 0 );
- push_message( L, message );
- vlm_MessageDelete( message );
- return 1 + vlclua_push_ret( L, i_ret );
- }
- #else
- static int vlclua_vlm_new( lua_State *L )
- {
- return luaL_error( L, "Cannot start VLM because it was disabled when compiling VLC." );
- }
- #endif
- /*****************************************************************************
- *
- *****************************************************************************/
- void luaopen_vlm( lua_State *L )
- {
- lua_pushcfunction( L, vlclua_vlm_new );
- lua_setfield( L, -2, "vlm" );
- }