mms.c
上传用户:riyaled888
上传日期:2009-03-27
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文件大小:5k
- /*****************************************************************************
- * mms.c: MMS over tcp, udp and http access plug-in
- *****************************************************************************
- * Copyright (C) 2002-2004 VideoLAN
- * $Id: mms.c 8826 2004-09-27 17:41:49Z gbazin $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h>
- #include <vlc/vlc.h>
- #include <vlc/input.h>
- #include "mms.h"
- /****************************************************************************
- * NOTES:
- * MMSProtocole documentation found at http://get.to/sdp
- ****************************************************************************/
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close( vlc_object_t * );
- #define CACHING_TEXT N_("Caching value in ms")
- #define CACHING_LONGTEXT N_(
- "Allows you to modify the default caching value for MMS streams. This "
- "value should be set in millisecond units." )
- #define ALL_TEXT N_("Force selection of all streams")
- #define BITRATE_TEXT N_("Select maximum bitrate stream")
- #define BITRATE_LONGTEXT N_(
- "Always select the stream with the maximum bitrate." )
- vlc_module_begin();
- set_description( _("Microsoft Media Server (MMS) input") );
- set_capability( "access2", -1 );
- add_integer( "mms-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
- add_bool( "mms-all", 0, NULL, ALL_TEXT, "", VLC_TRUE );
- add_integer( "mms-maxbitrate", 0, NULL, BITRATE_TEXT, BITRATE_LONGTEXT ,
- VLC_FALSE );
- add_shortcut( "mms" );
- add_shortcut( "mmsu" );
- add_shortcut( "mmst" );
- add_shortcut( "mmsh" );
- add_shortcut( "http" );
- set_callbacks( Open, Close );
- vlc_module_end();
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- struct access_sys_t
- {
- int i_proto;
- };
- /*****************************************************************************
- * Open:
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- access_t *p_access = (access_t*)p_this;
- /* First set ipv4/ipv6 */
- var_Create( p_access, "ipv4", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- var_Create( p_access, "ipv6", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
- /* mms-caching */
- var_Create( p_access, "mms-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- /* use specified method */
- if( *p_access->psz_access )
- {
- if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
- {
- return E_( MMSTUOpen )( p_access );
- }
- else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
- {
- return E_( MMSTUOpen )( p_access );
- }
- else if( !strncmp( p_access->psz_access, "mmsh", 4 ) ||
- !strncmp( p_access->psz_access, "http", 4 ) )
- {
- return E_( MMSHOpen )( p_access );
- }
- }
- if( E_( MMSTUOpen )( p_access ) )
- {
- /* try mmsh if mmstu failed */
- return E_( MMSHOpen )( p_access );
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close: free unused data structures
- *****************************************************************************/
- static void Close( vlc_object_t *p_this )
- {
- access_t *p_access = (access_t*)p_this;
- access_sys_t *p_sys = p_access->p_sys;
- if( p_sys->i_proto == MMS_PROTO_TCP || p_sys->i_proto == MMS_PROTO_UDP )
- {
- E_( MMSTUClose )( p_access );
- }
- else if( p_sys->i_proto == MMS_PROTO_HTTP )
- {
- E_( MMSHClose )( p_access );
- }
- }