mms.c 4.99 KB
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/*****************************************************************************
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 * mms.c: MMS over tcp, udp and http access plug-in
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 *****************************************************************************
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 * Copyright (C) 2002-2004 the VideoLAN team
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 * $Id$
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 *
 * 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.
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 *
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 * 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
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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 *****************************************************************************/


/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>

#include <vlc/vlc.h>
#include <vlc/input.h>

#include "mms.h"
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/****************************************************************************
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 * NOTES:
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 *  MMSProtocole documentation found at http://get.to/sdp
 ****************************************************************************/

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
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static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );

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#define CACHING_TEXT N_("Caching value in ms")
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#define CACHING_LONGTEXT N_( \
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    "Default caching value for MMS streams. This " \
    "value should be set in milliseconds." )
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#define ALL_TEXT N_("Force selection of all streams")
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#define ALL_LONGTEXT N_( \
    "MMS streams can contain several elementary streams, with different " \
    "bitrates. You can choose to select all of them." )
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#define BITRATE_TEXT N_( "Maximum bitrate" )
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#define BITRATE_LONGTEXT N_( \
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    "Select the stream with the maximum bitrate under that limit."  )
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vlc_module_begin();
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    set_shortname( "MMS" );
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    set_description( _("Microsoft Media Server (MMS) input") );
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    set_capability( "access2", -1 );
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    set_category( CAT_INPUT );
    set_subcategory( SUBCAT_INPUT_ACCESS );
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    add_integer( "mms-caching", 19 * DEFAULT_PTS_DELAY / 1000, NULL,
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                 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );

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    add_bool( "mms-all", 0, NULL, ALL_TEXT, ALL_LONGTEXT, VLC_TRUE );
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    add_integer( "mms-maxbitrate", 0, NULL, BITRATE_TEXT, BITRATE_LONGTEXT ,
                 VLC_FALSE );

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    add_shortcut( "mms" );
    add_shortcut( "mmsu" );
    add_shortcut( "mmst" );
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    add_shortcut( "mmsh" );
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    add_shortcut( "http" );
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    set_callbacks( Open, Close );
vlc_module_end();

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/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
struct access_sys_t
{
    int i_proto;
};


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/*****************************************************************************
 * Open:
 *****************************************************************************/
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static int Open( vlc_object_t *p_this )
{
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    access_t *p_access = (access_t*)p_this;
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    /* First set ipv4/ipv6 */
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    var_Create( p_access, "ipv4", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_access, "ipv6", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
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    /* mms-caching */
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    var_Create( p_access, "mms-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
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    /* use specified method */
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    if( *p_access->psz_access )
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    {
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        if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
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        {
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            return E_( MMSTUOpen )( p_access );
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        }
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        else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
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        {
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            return E_( MMSTUOpen )( p_access );
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        }
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        else if( !strncmp( p_access->psz_access, "mmsh", 4 ) ||
                 !strncmp( p_access->psz_access, "http", 4 ) )
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        {
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            return E_( MMSHOpen )( p_access );
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        }
    }

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    if( E_( MMSTUOpen )( p_access ) )
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    {
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        /* try mmsh if mmstu failed */
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        return E_( MMSHOpen )( p_access );
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    }
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    return VLC_SUCCESS;
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}

/*****************************************************************************
 * Close: free unused data structures
 *****************************************************************************/
static void Close( vlc_object_t *p_this )
{
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    access_t     *p_access = (access_t*)p_this;
    access_sys_t *p_sys = p_access->p_sys;
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    if( p_sys->i_proto == MMS_PROTO_TCP || p_sys->i_proto == MMS_PROTO_UDP )
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    {
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        E_( MMSTUClose )( p_access );
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    }
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    else if( p_sys->i_proto == MMS_PROTO_HTTP )
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    {
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        E_( MMSHClose )( p_access );
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    }
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}