1 /*****************************************************************************
2 * es.c : Elementary Stream input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: es.c,v 1.1 2001/04/20 15:02:48 sam Exp $
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 #define MODULE_NAME es
25 #include "modules_inner.h"
27 /*****************************************************************************
29 *****************************************************************************/
32 #include <stdlib.h> /* malloc(), free() */
33 #include <string.h> /* strdup() */
36 #include "common.h" /* boolean_t, byte_t */
42 /*****************************************************************************
43 * Build configuration tree.
44 *****************************************************************************/
46 ADD_WINDOW( "Configuration for ES module" )
47 ADD_COMMENT( "foobar !" )
50 /*****************************************************************************
51 * Capabilities defined in the other files.
52 *****************************************************************************/
53 void _M( input_getfunctions )( function_list_t * p_function_list );
55 /*****************************************************************************
56 * InitModule: get the module structure and configuration.
57 *****************************************************************************
58 * We have to fill psz_name, psz_longname and psz_version. These variables
59 * will be strdup()ed later by the main application because the module can
60 * be unloaded later to save memory, and we want to be able to access this
61 * data even after the module has been unloaded.
62 *****************************************************************************/
65 p_module->psz_name = MODULE_STRING;
66 p_module->psz_longname = "ISO 13818-1 MPEG Elementary Stream input module";
67 p_module->psz_version = VERSION;
69 p_module->i_capabilities = MODULE_CAPABILITY_NULL
70 | MODULE_CAPABILITY_INPUT;
75 /*****************************************************************************
76 * ActivateModule: set the module to an usable state.
77 *****************************************************************************
78 * This function fills the capability functions and the configuration
79 * structure. Once ActivateModule() has been called, the i_usage can
80 * be set to 0 and calls to NeedModule() be made to increment it. To unload
81 * the module, one has to wait until i_usage == 0 and call DeactivateModule().
82 *****************************************************************************/
85 p_module->p_functions = malloc( sizeof( module_functions_t ) );
86 if( p_module->p_functions == NULL )
91 _M( input_getfunctions )( &p_module->p_functions->input );
93 p_module->p_config = p_config;
98 /*****************************************************************************
99 * DeactivateModule: make sure the module can be unloaded.
100 *****************************************************************************
101 * This function must only be called when i_usage == 0. If it successfully
102 * returns, i_usage can be set to -1 and the module unloaded. Be careful to
103 * lock usage_lock during the whole process.
104 *****************************************************************************/
107 free( p_module->p_functions );