rtsp.c 47.2 KB
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/*****************************************************************************
 * rtsp.c: rtsp VoD server module
 *****************************************************************************
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 * Copyright (C) 2003-2006 the VideoLAN team
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 * $Id$
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *          Gildas Bazin <gbazin@videolan.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
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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 *****************************************************************************/

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

#include <errno.h>

#include <vlc/vlc.h>
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#include <vlc_input.h>
#include <vlc_sout.h>
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#include "vlc_httpd.h"
#include "vlc_vod.h"
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#include "vlc_url.h"
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#include <vlc_network.h>
#include <vlc_charset.h>
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/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );

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#define HOST_TEXT N_( "RTSP host address" )
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/// \bug [String] extra space
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#define HOST_LONGTEXT N_( \
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    "This defines the address, port and path the RTSP VOD server will listen " \
    "on.\nSyntax is address:port/path. The default is to listen on all "\
    "interfaces (address 0.0.0.0), on port 554, with no path.\n To listen " \
    "only on the local interface, use \"localhost\" as address." )
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#define THROTLE_TEXT N_( "Maximum number of connections" )
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#define THROTLE_LONGTEXT N_( "This limits the maximum number of clients " \
    "that can connect to the RTSP VOD. 0 means no limit."  )
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#define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )

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#define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
    "session string" )
#define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
    "to the RTSP session ID string. Setting it to a negative number removes " \
    "the timeout option entirely. This is needed by some IPTV STBs (such as " \
    "those made by HansunTech) which get confused by it. The default is 5." )

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vlc_module_begin();
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    set_shortname( _("RTSP VoD" ) );
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    set_description( _("RTSP VoD server") );
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    set_category( CAT_SOUT );
    set_subcategory( SUBCAT_SOUT_VOD );
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    set_capability( "vod server", 1 );
    set_callbacks( Open, Close );
    add_shortcut( "rtsp" );
    add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, VLC_TRUE );
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    add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT, RAWMUX_TEXT, VLC_TRUE );
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    add_integer( "rtsp-throttle-users", 0, NULL, THROTLE_TEXT,
                                           THROTLE_LONGTEXT, VLC_TRUE );
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    add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
                 SESSION_TIMEOUT_LONGTEXT, VLC_TRUE );
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vlc_module_end();

/*****************************************************************************
 * Exported prototypes
 *****************************************************************************/

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typedef struct media_es_t media_es_t;

typedef struct
{
    media_es_t *p_media_es;
    char *psz_ip;
    int i_port;

} rtsp_client_es_t;

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typedef struct
{
    char *psz_session;
    int64_t i_last; /* for timeout */

    vlc_bool_t b_playing; /* is it in "play" state */
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    vlc_bool_t b_paused; /* is it in "pause" state */

    int i_es;
    rtsp_client_es_t **es;
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} rtsp_client_t;

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struct media_es_t
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{
    /* VoD server */
    vod_t *p_vod;

    /* RTSP server */
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    httpd_url_t *p_rtsp_url;
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    vod_media_t *p_media;

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    es_format_t fmt;
    int         i_port;
    uint8_t     i_payload_type;
    char        *psz_rtpmap;
    char        *psz_fmtp;

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};
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struct vod_media_t
{
    /* VoD server */
    vod_t *p_vod;

    /* RTSP server */
    httpd_url_t  *p_rtsp_url;
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    char         *psz_rtsp_control_v4;
    char         *psz_rtsp_control_v6;
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    char         *psz_rtsp_path;

    int  i_port;
    int  i_port_audio;
    int  i_port_video;
    int  i_ttl;
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    int  i_payload_type;

    int64_t i_sdp_id;
    int     i_sdp_version;

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    vlc_bool_t b_multicast;

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    vlc_mutex_t lock;
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    /* ES list */
    int        i_es;
    media_es_t **es;
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    char       *psz_mux;
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    vlc_bool_t  b_raw;
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    /* RTSP client */
    int           i_rtsp;
    rtsp_client_t **rtsp;
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    /* Infos */
    char *psz_session_name;
    char *psz_session_description;
    char *psz_session_url;
    char *psz_session_email;
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    mtime_t i_length;
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};

struct vod_sys_t
{
    /* RTSP server */
    httpd_host_t *p_rtsp_host;
    char *psz_path;
    int i_port;
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    int i_throttle_users;
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    int i_connections;
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    char *psz_raw_mux;

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    int i_session_timeout;

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    /* List of media */
    int i_media;
    vod_media_t **media;
};

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static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
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static void         MediaDel( vod_t *, vod_media_t * );
static int          MediaAddES( vod_t *, vod_media_t *, es_format_t * );
static void         MediaDelES( vod_t *, vod_media_t *, es_format_t * );

static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
static rtsp_client_t *RtspClientGet( vod_media_t *, char * );
static void           RtspClientDel( vod_media_t *, rtsp_client_t * );

static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
                         httpd_message_t *, httpd_message_t * );
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static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
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                           httpd_message_t *, httpd_message_t * );

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static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
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static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
{
    static const char hex[16] = "0123456789abcdef";
    int i;

    for( i = 0; i < i_data; i++ )
    {
        s[2*i+0] = hex[(p_data[i]>>4)&0xf];
        s[2*i+1] = hex[(p_data[i]   )&0xf];
    }
    s[2*i_data] = '\0';
}

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/*****************************************************************************
 * Open: Starts the RTSP server module
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    vod_t *p_vod = (vod_t *)p_this;
    vod_sys_t *p_sys = 0;
    char *psz_url = 0;
    vlc_url_t url;

    psz_url = config_GetPsz( p_vod, "rtsp-host" );
    vlc_UrlParse( &url, psz_url, 0 );
    if( psz_url ) free( psz_url );

    if( url.i_port <= 0 ) url.i_port = 554;

    p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
    if( !p_sys ) goto error;
    p_sys->p_rtsp_host = 0;

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    var_Create( p_this, "rtsp-session-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    p_sys->i_session_timeout = var_GetInteger( p_this, "rtsp-session-timeout" );

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    var_Create( p_this, "rtsp-throttle-users", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    p_sys->i_throttle_users = var_GetInteger( p_this, "rtsp-throtle-users" );
    msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
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    p_sys->i_connections = 0;

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    var_Create( p_this, "rtsp-raw-mux", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    p_sys->psz_raw_mux = var_GetString( p_this, "rtsp-raw-mux" );
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    p_sys->p_rtsp_host =
        httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
    if( !p_sys->p_rtsp_host )
    {
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        msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
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                 url.psz_host, url.i_port );
        goto error;
    }

    p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
    p_sys->i_port = url.i_port;

    vlc_UrlClean( &url );
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    p_sys->media = NULL;
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    p_sys->i_media = 0;

    p_vod->pf_media_new = MediaNew;
    p_vod->pf_media_del = MediaDel;
    p_vod->pf_media_add_es = MediaAddES;
    p_vod->pf_media_del_es = MediaDelES;

    return VLC_SUCCESS;

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error:
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    if( p_sys && p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
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    if( p_sys && p_sys->psz_raw_mux ) free( p_sys->psz_raw_mux );
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    if( p_sys ) free( p_sys );
    vlc_UrlClean( &url );
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    return VLC_EGENERIC;
}

/*****************************************************************************
 * Close:
 *****************************************************************************/
static void Close( vlc_object_t * p_this )
{
    vod_t *p_vod = (vod_t *)p_this;
    vod_sys_t *p_sys = p_vod->p_sys;

    httpd_HostDelete( p_sys->p_rtsp_host );
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    var_Destroy( p_this, "rtsp-session-timeout" );
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    var_Destroy( p_this, "rtsp-throttle-users" );
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    var_Destroy( p_this, "rtsp-raw-mux" );
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    /* TODO delete medias */
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    free( p_sys->psz_path );
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    free( p_sys->psz_raw_mux );
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    free( p_sys );
}

/*****************************************************************************
 * Media handling
 *****************************************************************************/
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static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
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                              input_item_t *p_item )
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{
    vod_sys_t *p_sys = p_vod->p_sys;
    vod_media_t *p_media = malloc( sizeof(vod_media_t) );
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    int i;
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    if( !p_media )
    {
        msg_Err( p_vod, "not enough memory" );
        return NULL;
    }

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    memset( p_media, 0, sizeof(vod_media_t) );
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    p_media->es = 0;
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    p_media->psz_mux = 0;
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    p_media->rtsp = 0;
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    p_media->b_raw = VLC_FALSE;
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    asprintf( &p_media->psz_rtsp_path, "%s%s", p_sys->psz_path, psz_name );
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    p_media->p_rtsp_url =
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        httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
                            NULL, NULL );
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    if( !p_media->p_rtsp_url )
    {
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        msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
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        free( p_media->psz_rtsp_path );
        free( p_media );
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        return NULL;
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    }

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    msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
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    asprintf( &p_media->psz_rtsp_control_v4,
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               "a=control:rtsp://%%s:%d%s/trackID=%%d\r\n",
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               p_sys->i_port, p_media->psz_rtsp_path );
    asprintf( &p_media->psz_rtsp_control_v6,
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               "a=control:rtsp://[%%s]:%d%s/trackID=%%d\r\n",
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              p_sys->i_port, p_media->psz_rtsp_path );
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    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
                    RtspCallback, (void*)p_media );
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    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
                    RtspCallback, (void*)p_media );
    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
                    RtspCallback, (void*)p_media );
    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
                    RtspCallback, (void*)p_media );
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    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
                    RtspCallback, (void*)p_media );
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    httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
                    RtspCallback, (void*)p_media );

    p_media->p_vod = p_vod;

    TAB_APPEND( p_sys->i_media, p_sys->media, p_media );

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    vlc_mutex_init( p_vod, &p_media->lock );
    p_media->psz_session_name = strdup("");
    p_media->psz_session_description = strdup("");
    p_media->psz_session_url = strdup("");
    p_media->psz_session_email = strdup("");

    p_media->i_port_audio = 1234;
    p_media->i_port_video = 1236;
    p_media->i_port       = 1238;
    p_media->i_payload_type = 96;

    p_media->i_sdp_id = mdate();
    p_media->i_sdp_version = 1;
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    p_media->i_length = p_item->i_duration;
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    vlc_mutex_lock( &p_item->lock );
    msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
    for( i = 0; i < p_item->i_es; i++ )
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    {
        MediaAddES( p_vod, p_media, p_item->es[i] );
    }
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    vlc_mutex_unlock( &p_item->lock );

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    return p_media;
}

static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
{
    vod_sys_t *p_sys = p_vod->p_sys;

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    msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );

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    while( p_media->i_rtsp > 0 ) RtspClientDel( p_media, p_media->rtsp[0] );
    httpd_UrlDelete( p_media->p_rtsp_url );
    if( p_media->psz_rtsp_path ) free( p_media->psz_rtsp_path );
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    if( p_media->psz_rtsp_control_v6 ) free( p_media->psz_rtsp_control_v6 );
    if( p_media->psz_rtsp_control_v4 ) free( p_media->psz_rtsp_control_v4 );
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    TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
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    while( p_media->i_es ) MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );

    vlc_mutex_destroy( &p_media->lock );
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    if( p_media->psz_session_name ) free( p_media->psz_session_name );
    if( p_media->psz_session_description ) free( p_media->psz_session_description );
    if( p_media->psz_session_url ) free( p_media->psz_session_url );
    if( p_media->psz_session_email ) free( p_media->psz_session_email );
    if( p_media->psz_mux ) free( p_media->psz_mux );
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    free( p_media );
}

static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
{
    media_es_t *p_es = malloc( sizeof(media_es_t) );
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    char *psz_urlc;
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    if( !p_es ) return VLC_ENOMEM;
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    memset( p_es, 0, sizeof(media_es_t) );
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    if( p_media->psz_mux ) free( p_media->psz_mux );
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    p_media->psz_mux = NULL;
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    /* TODO: update SDP, etc... */
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    asprintf( &psz_urlc, "%s/trackID=%d",
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              p_media->psz_rtsp_path, p_media->i_es );
    msg_Dbg( p_vod, "  - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
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    switch( p_fmt->i_codec )
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    {
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        case VLC_FOURCC( 's', '1', '6', 'b' ):
            if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
            {
                p_es->i_payload_type = 11;
            }
            else if( p_fmt->audio.i_channels == 2 && p_fmt->audio.i_rate == 44100 )
            {
                p_es->i_payload_type = 10;
            }
            else
            {
                p_es->i_payload_type = p_media->i_payload_type++;
            }
            p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
            sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
                    p_fmt->audio.i_channels );
            break;
        case VLC_FOURCC( 'u', '8', ' ', ' ' ):
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            p_es->i_payload_type = p_media->i_payload_type++;
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            p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
            sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
                    p_fmt->audio.i_channels );
            break;
        case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
            p_es->i_payload_type = 14;
            p_es->psz_rtpmap = strdup( "MPA/90000" );
            break;
        case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
            p_es->i_payload_type = 32;
            p_es->psz_rtpmap = strdup( "MPV/90000" );
            break;
        case VLC_FOURCC( 'a', '5', '2', ' ' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( "ac3/90000" );
            break;
        case VLC_FOURCC( 'H', '2', '6', '3' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( "H263-1998/90000" );
            break;
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        case VLC_FOURCC( 'h', '2', '6', '4' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( "H264/90000" );
            p_es->psz_fmtp = strdup( "packetization-mode=1" );
            break;
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        case VLC_FOURCC( 'm', 'p', '4', 'v' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
            if( p_fmt->i_extra > 0 )
            {
                char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
                p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
                sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
                sprintf( p_es->psz_fmtp,
                        "profile-level-id=3; config=%s;", p_hexa );
                free( p_hexa );
            }
            break;
        case VLC_FOURCC( 'm', 'p', '4', 'a' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
            sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
            if( p_fmt->i_extra > 0 )
            {
                char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
                p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
                sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
                sprintf( p_es->psz_fmtp,
                        "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
                        "config=%s; SizeLength=13;IndexLength=3; "
                        "IndexDeltaLength=3; Profile=1;", p_hexa );
                free( p_hexa );
            }
            break;
        case VLC_FOURCC( 'm', 'p', '2', 't' ):
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            p_media->psz_mux = strdup("ts");
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            p_es->i_payload_type = 33;
            p_es->psz_rtpmap = strdup( "MP2T/90000" );
            break;
        case VLC_FOURCC( 'm', 'p', '2', 'p' ):
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            p_media->psz_mux = strdup("ps");
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            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( "MP2P/90000" );
            break;
        case VLC_FOURCC( 's', 'a', 'm', 'r' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
                                    "AMR/8000/2" : "AMR/8000" );
            p_es->psz_fmtp = strdup( "octet-align=1" );
            break;
        case VLC_FOURCC( 's', 'a', 'w', 'b' ):
            p_es->i_payload_type = p_media->i_payload_type++;
            p_es->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
                                    "AMR-WB/16000/2" : "AMR-WB/16000" );
            p_es->psz_fmtp = strdup( "octet-align=1" );
            break;
528

529 530 531 532 533
        default:
            msg_Err( p_vod, "cannot add this stream (unsupported "
                    "codec: %4.4s)", (char*)&p_fmt->i_codec );
            free( p_es );
            return VLC_EGENERIC;
534 535 536
    }

    p_es->p_rtsp_url =
537 538
        httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
                            NULL );
539 540 541

    if( !p_es->p_rtsp_url )
    {
542
        msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
543 544 545
        free( psz_urlc );
        free( p_es );
        return VLC_EGENERIC;
546
    }
547 548 549 550
    free( psz_urlc );

    httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
                    RtspCallbackES, (void*)p_es );
551 552 553 554 555 556
    httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
                    RtspCallbackES, (void*)p_es );
    httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
                    RtspCallbackES, (void*)p_es );
    httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
                    RtspCallbackES, (void*)p_es );
557

558
    es_format_Copy( &p_es->fmt, p_fmt );
559 560 561
    p_es->p_vod = p_vod;
    p_es->p_media = p_media;

562
#if 0
563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
    /* Choose the port */
    if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
    {
        p_es->i_port = p_media->i_port_audio;
        p_media->i_port_audio = 0;
    }
    else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
    {
        p_es->i_port = p_media->i_port_video;
        p_media->i_port_video = 0;
    }
    while( !p_es->i_port )
    {
        if( p_media->i_port != p_media->i_port_audio &&
            p_media->i_port != p_media->i_port_video )
        {
            p_es->i_port = p_media->i_port;
            p_media->i_port += 2;
            break;
        }
        p_media->i_port += 2;
    }
585 586 587 588
#else

    p_es->i_port = 0;
#endif
589 590 591 592 593 594 595

    vlc_mutex_lock( &p_media->lock );
    TAB_APPEND( p_media->i_es, p_media->es, p_es );
    vlc_mutex_unlock( &p_media->lock );

    p_media->i_sdp_version++;

596 597 598 599 600
    return VLC_SUCCESS;
}

static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
{
601
    media_es_t *p_es = NULL;
602 603 604 605 606 607 608 609 610 611 612 613 614
    int i;

    /* Find the ES */
    for( i = 0; i < p_media->i_es; i++ )
    {
        if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
            p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
            p_media->es[i]->fmt.i_id == p_fmt->i_id )
        {
            p_es = p_media->es[i];
        }
    }
    if( !p_es ) return;
615

616 617 618
    msg_Dbg( p_vod, "  - Removing ES %4.4s", (char *)&p_fmt->i_codec );

    vlc_mutex_lock( &p_media->lock );
619
    TAB_REMOVE( p_media->i_es, p_media->es, p_es );
620
    vlc_mutex_unlock( &p_media->lock );
621

622 623 624
    if( p_es->psz_rtpmap ) free( p_es->psz_rtpmap );
    if( p_es->psz_fmtp ) free( p_es->psz_fmtp );
    p_media->i_sdp_version++;
625 626

    if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
627
    es_format_Clean( &p_es->fmt );
628 629 630 631 632 633 634
}

/****************************************************************************
 * RTSP server implementation
 ****************************************************************************/
static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
{
635
    rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
636 637

    if( !p_rtsp ) return NULL;
638 639
    memset( p_rtsp, 0, sizeof(rtsp_client_t) );
    p_rtsp->es = 0;
640

641 642
    p_rtsp->psz_session = psz_session;
    TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
643

644 645
    p_media->p_vod->p_sys->i_connections++;
    msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
646
             psz_session, p_media->p_vod->p_sys->i_throttle_users );
647

648
    return p_rtsp;
649 650 651 652 653 654
}

static rtsp_client_t *RtspClientGet( vod_media_t *p_media, char *psz_session )
{
    int i;

655
    for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
656 657 658 659 660 661 662 663 664 665
    {
        if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
        {
            return p_media->rtsp[i];
        }
    }

    return NULL;
}

666
static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
667
{
668 669
    p_media->p_vod->p_sys->i_connections--;
    msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
670
             p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
671

672 673
    while( p_rtsp->i_es-- )
    {
674 675 676 677
        if( p_rtsp->es[p_rtsp->i_es]->psz_ip )
            free( p_rtsp->es[p_rtsp->i_es]->psz_ip );
        free( p_rtsp->es[p_rtsp->i_es] );
        if( !p_rtsp->i_es ) free( p_rtsp->es );
678 679
    }

680
    TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
681

682 683
    free( p_rtsp->psz_session );
    free( p_rtsp );
684 685 686 687 688 689 690
}

static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
                         httpd_message_t *answer, httpd_message_t *query )
{
    vod_media_t *p_media = (vod_media_t*)p_args;
    vod_t *p_vod = p_media->p_vod;
691
    char *psz_transport = NULL;
692
    char *psz_playnow = NULL; /* support option: x-playNow */
693
    char *psz_session = NULL;
694
    char *psz_cseq = NULL;
695
    rtsp_client_t *p_rtsp;
696
    int i_port = 0;
697
    int i_cseq = 0;
698 699 700

    if( answer == NULL || query == NULL ) return VLC_SUCCESS;

701
    msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
702 703 704 705

    answer->i_proto   = HTTPD_PROTO_RTSP;
    answer->i_version = query->i_version;
    answer->i_type    = HTTPD_MSG_ANSWER;
706
    answer->i_body    = 0;
707
    answer->p_body    = NULL;
708 709 710

    switch( query->i_type )
    {
711 712
        case HTTPD_MSG_SETUP:
        {
713
            psz_playnow = httpd_MsgGet( query, "x-playNow" );
714 715 716 717 718 719
            psz_transport = httpd_MsgGet( query, "Transport" );
            msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );

            if( strstr( psz_transport, "unicast" ) &&
                strstr( psz_transport, "client_port=" ) )
            {
720
                rtsp_client_t *p_rtsp = NULL;
721
                char ip[NI_MAXNUMERICHOST];
722
                i_port = atoi( strstr( psz_transport, "client_port=" ) +
723 724
                                strlen("client_port=") );

725 726 727
                if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
                    strstr( psz_transport, "RAW/RAW/UDP" ) )
                {
728 729 730
                    if( p_media->psz_mux ) free( p_media->psz_mux );
                    p_media->psz_mux = NULL;
                    p_media->psz_mux = strdup( p_vod->p_sys->psz_raw_mux );
731
                    p_media->b_raw = VLC_TRUE;
732
                }
733

734 735 736 737 738 739 740 741 742 743
                if( httpd_ClientIP( cl, ip ) == NULL )
                {
                    answer->i_status = 500;
                    answer->psz_status = strdup( "Internal server error" );
                    answer->i_body = 0;
                    answer->p_body = NULL;
                    break;
                }

                msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
744
                         ip, i_port );
745 746 747 748

                psz_session = httpd_MsgGet( query, "Session" );
                if( !psz_session || !*psz_session )
                {
749 750
                    if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
                        ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
751
                    {
752
                        answer->i_status = 503;
753 754 755 756 757
                        answer->psz_status = strdup( "Too many connections" );
                        answer->i_body = 0;
                        answer->p_body = NULL;
                        break;
                    }
758 759
                    asprintf( &psz_session, "%d", rand() );
                    p_rtsp = RtspClientNew( p_media, psz_session );
760 761 762 763 764 765 766 767
                    if( !p_rtsp )
                    {
                        answer->i_status = 454;
                        answer->psz_status = strdup( "Unknown session id" );
                        answer->i_body = 0;
                        answer->p_body = NULL;
                        break;
                    }
768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786
                }
                else
                {
                    p_rtsp = RtspClientGet( p_media, psz_session );
                    if( !p_rtsp )
                    {
                        answer->i_status = 454;
                        answer->psz_status = strdup( "Unknown session id" );
                        answer->i_body = 0;
                        answer->p_body = NULL;
                        break;
                    }
                }

                answer->i_status = 200;
                answer->psz_status = strdup( "OK" );
                answer->i_body = 0;
                answer->p_body = NULL;

787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802
                if( p_media->b_raw )
                {
                    if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
                    {
                        httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
                                      i_port, i_port + 1 );
                    }
                    else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
                    {
                        httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
                                      i_port, i_port + 1 );
                    }
                }
                else
                    httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
                                  i_port, i_port + 1 );
803 804 805 806 807 808 809 810
            }
            else /* TODO  strstr( psz_transport, "interleaved" ) ) */
            {
                answer->i_status = 461;
                answer->psz_status = strdup( "Unsupported Transport" );
                answer->i_body = 0;
                answer->p_body = NULL;
            }
811

812 813
            /* Intentional fall-through on x-playNow option in RTSP request */
            if( !psz_playnow )
814
                break;
815 816 817 818
        }

        case HTTPD_MSG_PLAY:
        {
819
            char *psz_output, ip[NI_MAXNUMERICHOST];
820
            int i, i_port_audio = 0, i_port_video = 0;
821 822

            /* for now only multicast so easy */
823 824 825 826 827 828 829
            if( !psz_playnow )
            {
                answer->i_status = 200;
                answer->psz_status = strdup( "OK" );
                answer->i_body = 0;
                answer->p_body = NULL;
            }
830

831 832
            if( !psz_session )
                psz_session = httpd_MsgGet( query, "Session" );
833 834
            msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );

835
            p_rtsp = RtspClientGet( p_media, psz_session );
836 837 838 839 840 841 842 843
            if( !p_rtsp )
            {
                answer->i_status = 500;
                answer->psz_status = strdup( "Internal server error" );
                answer->i_body = 0;
                answer->p_body = NULL;
                break;
            }
844

845 846 847
            if( p_rtsp->b_playing )
            {
                char *psz_position = httpd_MsgGet( query, "Range" );
848
                char *psz_scale = httpd_MsgGet( query, "Scale" );
849
                if( psz_position ) psz_position = strstr( psz_position, "npt=" );
850
                if( psz_position && !psz_scale )
851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866
                {
                    double f_pos;
                    char *end;

                    msg_Dbg( p_vod, "seeking request: %s", psz_position );
                    psz_position += 4;
                    /* FIXME: npt= is not necessarily formatted as a float */
                    f_pos = us_strtod( psz_position, &end );
                    if( end > psz_position )
                    {
                        f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
                        vod_MediaControl( p_vod, p_media, psz_session,
                                      VOD_MEDIA_SEEK, f_pos );
                    }
                    break;
                }
867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897
                if( psz_scale )
                {
                    double f_scale = 0.0;
                    char *end;

                    f_scale = us_strtod( psz_scale, &end );
                    if( end > psz_scale )
                    {
                        f_scale = (f_scale * 30.0);
                        if( psz_scale[0] == '-' ) /* rewind */
                        {
                            msg_Dbg( p_vod, "rewind request: %s", psz_scale );
                            vod_MediaControl( p_vod, p_media, psz_session,
                                                VOD_MEDIA_REWIND, f_scale );
                        }
                        else if(psz_scale[0] != '1' ) /* fast-forward */
                        {
                            msg_Dbg( p_vod, "fastforward request: %s", psz_scale );
                            vod_MediaControl( p_vod, p_media, psz_session,
                                                VOD_MEDIA_FORWARD, f_scale );
                        }

                        if( p_rtsp->b_paused == VLC_TRUE )
                        {
                            p_rtsp->b_paused = VLC_FALSE;
                            vod_MediaControl( p_vod, p_media, psz_session,
                                                VOD_MEDIA_PAUSE, psz_output );
                        }
                    }
                    break;
                }
898 899
            }

900 901 902 903 904 905 906 907 908
            if( p_rtsp->b_playing && p_rtsp->b_paused )
            {
                vod_MediaControl( p_vod, p_media, psz_session,
                                  VOD_MEDIA_PAUSE );
                p_rtsp->b_paused = VLC_FALSE;
                break;
            }
            else if( p_rtsp->b_playing ) break;

909
            if( httpd_ClientIP( cl, ip ) == NULL ) break;
910

911
            p_rtsp->b_playing = VLC_TRUE;
912 913

            /* FIXME for != 1 video and 1 audio */
914
            for( i = 0; i < p_rtsp->i_es; i++ )
915
            {
916 917 918 919
                if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
                    i_port_audio = p_rtsp->es[i]->i_port;
                if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
                    i_port_video = p_rtsp->es[i]->i_port;
920
            }
921

922 923
            if( p_media->psz_mux )
            {
924 925 926 927 928 929 930 931 932 933
                if( p_media->b_raw )
                {
                    asprintf( &psz_output, "std{access=udp,dst=%s:%i,mux=%s}",
                              ip, i_port, p_media->psz_mux );
                }
                else
                {
                    asprintf( &psz_output, "rtp{dst=%s,port=%i,mux=%s}",
                              ip, i_port_video, p_media->psz_mux );
                }
934 935 936 937 938 939 940
            }
            else
            {
                asprintf( &psz_output, "rtp{dst=%s,port-video=%i,"
                          "port-audio=%i}", ip, i_port_video, i_port_audio );
            }

941 942 943
            vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PLAY,
                              psz_output );
            free( psz_output );
944 945 946
            break;
        }

947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970
        case HTTPD_MSG_DESCRIBE:
        {
            char *psz_sdp =
                SDPGenerate( p_media, cl );

            if( psz_sdp != NULL )
            {
                answer->i_status = 200;
                answer->psz_status = strdup( "OK" );
                httpd_MsgAdd( answer, "Content-type",  "%s", "application/sdp" );

                answer->p_body = (uint8_t *)psz_sdp;
                answer->i_body = strlen( psz_sdp );
            }
            else
            {
                answer->i_status = 500;
                answer->psz_status = strdup( "Internal server error" );
                answer->p_body = NULL;
                answer->i_body = 0;
            }
            break;
        }

971 972 973
        case HTTPD_MSG_PAUSE:
            psz_session = httpd_MsgGet( query, "Session" );
            msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
974

975 976 977
            p_rtsp = RtspClientGet( p_media, psz_session );
            if( !p_rtsp ) break;

978
            vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PAUSE );
979
            p_rtsp->b_paused = VLC_TRUE;
980 981 982 983 984 985

            answer->i_status = 200;
            answer->psz_status = strdup( "OK" );
            answer->i_body = 0;
            answer->p_body = NULL;
            break;
986 987 988 989 990 991 992 993 994 995 996

        case HTTPD_MSG_TEARDOWN:
            /* for now only multicast so easy again */
            answer->i_status = 200;
            answer->psz_status = strdup( "OK" );
            answer->i_body = 0;
            answer->p_body = NULL;

            psz_session = httpd_MsgGet( query, "Session" );
            msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);

997 998
            p_rtsp = RtspClientGet( p_media, psz_session );
            if( !p_rtsp ) break;
999 1000

            vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_STOP );
1001
            RtspClientDel( p_media, p_rtsp );
1002 1003
            break;

1004 1005 1006 1007 1008 1009 1010
        case HTTPD_MSG_GETPARAMETER:
            answer->i_status = 200;
            answer->psz_status = strdup( "OK" );
            answer->i_body = 0;
            answer->p_body = NULL;
            break;

1011 1012 1013 1014 1015 1016
        default:
            return VLC_EGENERIC;
    }

    httpd_MsgAdd( answer, "Server", "VLC Server" );
    httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1017 1018
    psz_cseq = httpd_MsgGet( query, "Cseq" );
    psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1019
    httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1020 1021 1022 1023
    httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );

    if( psz_session )
    {
1024 1025 1026 1027 1028 1029
         if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
             httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
               p_media->p_vod->p_sys->i_session_timeout );
         else
              httpd_MsgAdd( answer, "Session", "%s", psz_session );
    } 
1030 1031 1032 1033

    return VLC_SUCCESS;
}

1034
static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1035 1036
                           httpd_message_t *answer, httpd_message_t *query )
{
1037 1038
    media_es_t *p_es = (media_es_t*)p_args;
    vod_media_t *p_media = p_es->p_media;
1039
    vod_t *p_vod = p_media->p_vod;
1040
    rtsp_client_t *p_rtsp = NULL;
1041
    char *psz_transport = NULL;
1042 1043
    char *psz_playnow = NULL; /* support option: x-playNow */
    char *psz_session = NULL;
1044
    char *psz_position = NULL;
1045 1046
    char *psz_cseq = NULL;
    int i_cseq = 0;
1047
    int i;
1048 1049 1050

    if( answer == NULL || query == NULL ) return VLC_SUCCESS;

1051
    msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1052 1053 1054 1055

    answer->i_proto   = HTTPD_PROTO_RTSP;
    answer->i_version = query->i_version;
    answer->i_type    = HTTPD_MSG_ANSWER;
1056 1057
    answer->i_body    = 0;
    answer->p_body      = NULL;
1058 1059 1060

    switch( query->i_type )
    {
1061 1062 1063
        case HTTPD_MSG_SETUP:
            psz_playnow = httpd_MsgGet( query, "x-playNow" );
            psz_transport = httpd_MsgGet( query, "Transport" );
1064

1065
            msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1066

1067 1068
            if( strstr( psz_transport, "unicast" ) &&
                strstr( psz_transport, "client_port=" ) )
1069
            {
1070 1071
                rtsp_client_t *p_rtsp = NULL;
                rtsp_client_es_t *p_rtsp_es = NULL;
1072 1073 1074
                char ip[NI_MAXNUMERICHOST];
                int i_port = atoi( strstr( psz_transport, "client_port=" ) +
                                strlen("client_port=") );
1075

1076
                if( httpd_ClientIP( cl, ip ) == NULL )
1077
                {
1078 1079
                    answer->i_status = 500;
                    answer->psz_status = strdup( "Internal server error" );
1080 1081 1082 1083 1084
                    answer->i_body = 0;
                    answer->p_body = NULL;
                    break;
                }

1085 1086
                msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
                        ip, i_port );
1087

1088 1089 1090
                psz_session = httpd_MsgGet( query, "Session" );
                if( !psz_session || !*psz_session )
                {
1091 1092
                    if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
                        ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1093
                    {
1094
                        answer->i_status = 503;
1095 1096 1097 1098 1099
                        answer->psz_status = strdup( "Too many connections" );
                        answer->i_body = 0;
                        answer->p_body = NULL;
                        break;
                    }
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114
                    asprintf( &psz_session, "%d", rand() );
                    p_rtsp = RtspClientNew( p_media, psz_session );
                }
                else
                {
                    p_rtsp = RtspClientGet( p_media, psz_session );
                    if( !p_rtsp )
                    {
                        answer->i_status = 454;
                        answer->psz_status = strdup( "Unknown session id" );
                        answer->i_body = 0;
                        answer->p_body = NULL;
                        break;
                    }
                }
1115

1116
                p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1117 1118 1119 1120 1121 1122 1123 1124
                if( !p_rtsp_es )
                {
                    answer->i_status = 500;
                    answer->psz_status = strdup( "Internal server error" );
                    answer->i_body = 0;
                    answer->p_body = NULL;
                    break;
                }
1125 1126 1127 1128 1129 1130 1131 1132 1133 1134
                p_rtsp_es->i_port = i_port;
                p_rtsp_es->psz_ip = strdup( ip );
                p_rtsp_es->p_media_es = p_es;
                TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );

                answer->i_status = 200;
                answer->psz_status = strdup( "OK" );
                answer->i_body = 0;
                answer->p_body = NULL;

1135 1136 1137 1138 1139
                if( p_media->b_raw )
                {
                    if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
                    {
                        httpd_MsgAdd( answer, "Transport", "MP2T/H2221/UDP;client_port=%d-%d",
1140
                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1141 1142 1143 1144
                    }
                    else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
                    {
                        httpd_MsgAdd( answer, "Transport", "RAW/RAW/UDP;client_port=%d-%d",
1145
                                      p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1146 1147 1148 1149 1150
                    }
                }
                else
                {
                    httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
1151
                                  p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1152
                }
1153 1154 1155 1156 1157 1158 1159 1160
            }
            else /* TODO  strstr( psz_transport, "interleaved" ) ) */
            {
                answer->i_status = 461;
                answer->psz_status = strdup( "Unsupported Transport" );
                answer->i_body = 0;
                answer->p_body = NULL;
            }
1161

1162 1163
            /* Intentional fall-through on x-playNow option in RTSP request */
            if( !psz_playnow )
1164
                break;
1165 1166

        case HTTPD_MSG_PLAY:
1167 1168
            /* This is kind of a kludge. Should we only support Aggregate
             * Operations ? */
1169 1170 1171 1172 1173 1174 1175 1176 1177
            psz_session = httpd_MsgGet( query, "Session" );
            msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );

            p_rtsp = RtspClientGet( p_media, psz_session );

            psz_position = httpd_MsgGet( query, "Range" );
            if( psz_position ) psz_position = strstr( psz_position, "npt=" );
            if( psz_position )
            {
1178 1179
                double f_pos;
                char *end;
1180 1181 1182 1183

                msg_Dbg( p_vod, "seeking request: %s", psz_position );

                psz_position += 4;
1184 1185 1186
                /* FIXME: npt= is not necessarily formatted as a float */
                f_pos = us_strtod( psz_position, &end );
                if( end > psz_position )
1187
                {
1188
                    f_pos /= ((double)(p_media->i_length))/1000 /1000 / 100;
1189
                    vod_MediaControl( p_vod, p_media, psz_session,
1190
                                      VOD_MEDIA_SEEK, f_pos );
1191 1192 1193
                }
            }

1194 1195 1196 1197 1198 1199 1200
            if( !psz_playnow )
            {
                answer->i_status = 200;
                answer->psz_status = strdup( "OK" );
                answer->i_body = 0;
                answer->p_body = NULL;
            }
1201 1202
            break;

1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232
        case HTTPD_MSG_TEARDOWN:
            answer->i_status = 200;
            answer->psz_status = strdup( "OK" );
            answer->i_body = 0;
            answer->p_body = NULL;

            psz_session = httpd_MsgGet( query, "Session" );
            msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);

            p_rtsp = RtspClientGet( p_media, psz_session );
            if( !p_rtsp ) break;

            for( i = 0; i < p_rtsp->i_es; i++ )
            {
                if( p_rtsp->es[i]->p_media_es == p_es )
                {
                    if( p_rtsp->es[i]->psz_ip ) free( p_rtsp->es[i]->psz_ip );
                    TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
                    break;
                }
            }

            if( !p_rtsp->i_es )
            {
                vod_MediaControl( p_vod, p_media, psz_session,
                                  VOD_MEDIA_STOP );
                RtspClientDel( p_media, p_rtsp );
            }
            break;

1233
        case HTTPD_MSG_PAUSE:
1234 1235
            /* This is kind of a kludge. Should we only support Aggregate
             * Operations ? */
1236 1237 1238
            psz_session = httpd_MsgGet( query, "Session" );
            msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );

1239 1240 1241 1242 1243 1244 1245 1246
            p_rtsp = RtspClientGet( p_media, psz_session );
            if( !p_rtsp ) break;

            vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PAUSE );
            p_rtsp->b_paused = VLC_TRUE;

            answer->i_status = 200;
            answer->psz_status = strdup( "OK" );
1247 1248 1249 1250
            answer->i_body = 0;
            answer->p_body = NULL;
            break;

1251 1252 1253 1254 1255 1256 1257
        default:
            return VLC_EGENERIC;
            break;
    }

    httpd_MsgAdd( answer, "Server", "VLC Server" );
    httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1258 1259 1260 1261 1262 1263
    psz_cseq = httpd_MsgGet( query, "Cseq" );
    if (psz_cseq)
        i_cseq = atoi( psz_cseq );
    else
        i_cseq = 0;
    httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275
    httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );

    if( psz_session )
        httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );

    return VLC_SUCCESS;
}

/*****************************************************************************
 * SDPGenerate: TODO
 * FIXME: need to be moved to a common place ?
 *****************************************************************************/
1276
static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1277
{
1278
    int i, i_size;
1279
    char *p, *psz_sdp, ip[NI_MAXNUMERICHOST], ipv;
1280
    const char *psz_control;
1281 1282 1283 1284 1285 1286 1287 1288 1289

    if( httpd_ServerIP( cl, ip ) == NULL )
        return NULL;

    p = strchr( ip, '%' );
    if( p != NULL )
        *p = '\0'; /* remove scope if present */

    ipv = ( strchr( ip, ':' ) != NULL ) ? '6' : '4';
1290 1291

    /* Calculate size */
1292 1293 1294 1295 1296 1297
    i_size = sizeof( "v=0\r\n" ) +
        sizeof( "o=- * * IN IP4 \r\n" ) + 10 + NI_MAXNUMERICHOST +
        sizeof( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
        sizeof( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
        sizeof( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
        sizeof( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
1298
        sizeof( "c=IN IP4 0.0.0.0\r\n" ) + 20 + 10 +