rtsp.c
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上传日期:2009-03-27
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文件大小:31k
- /*****************************************************************************
- * rtsp.c: rtsp VoD server module
- *****************************************************************************
- * Copyright (C) 2003-2004 VideoLAN
- * $Id: rtsp.c 9020 2004-10-20 12:01:09Z gbazin $
- *
- * 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
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h>
- #include <errno.h>
- #include <vlc/vlc.h>
- #include <vlc/input.h>
- #include <vlc/sout.h>
- #include "vlc_httpd.h"
- #include "vlc_vod.h"
- #include "network.h"
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close( vlc_object_t * );
- #define HOST_TEXT N_( "Host address" )
- #define HOST_LONGTEXT N_(
- "You can set the address, port and path the rtsp interface will bind to." )
- vlc_module_begin();
- set_description( _("RTSP VoD server") );
- set_capability( "vod server", 1 );
- set_callbacks( Open, Close );
- add_shortcut( "rtsp" );
- add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, VLC_TRUE );
- vlc_module_end();
- /*****************************************************************************
- * Exported prototypes
- *****************************************************************************/
- 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;
- typedef struct
- {
- char *psz_session;
- int64_t i_last; /* for timeout */
- vlc_bool_t b_playing; /* is it in "play" state */
- vlc_bool_t b_paused; /* is it in "pause" state */
- int i_es;
- rtsp_client_es_t **es;
- } rtsp_client_t;
- struct media_es_t
- {
- /* VoD server */
- vod_t *p_vod;
- /* RTSP server */
- httpd_url_t *p_rtsp_url;
- vod_media_t *p_media;
- es_format_t fmt;
- int i_port;
- uint8_t i_payload_type;
- char *psz_rtpmap;
- char *psz_fmtp;
- };
- struct vod_media_t
- {
- /* VoD server */
- vod_t *p_vod;
- /* RTSP server */
- httpd_url_t *p_rtsp_url;
- char *psz_rtsp_control;
- char *psz_rtsp_path;
- char *psz_destination;
- int i_port;
- int i_port_audio;
- int i_port_video;
- int i_ttl;
- int i_payload_type;
- int64_t i_sdp_id;
- int i_sdp_version;
- vlc_bool_t b_multicast;
- vlc_mutex_t lock;
- /* ES list */
- int i_es;
- media_es_t **es;
- char *psz_mux;
- /* RTSP client */
- int i_rtsp;
- rtsp_client_t **rtsp;
- /* Infos */
- char *psz_session_name;
- char *psz_session_description;
- char *psz_session_url;
- char *psz_session_email;
- };
- struct vod_sys_t
- {
- /* RTSP server */
- httpd_host_t *p_rtsp_host;
- char *psz_host;
- char *psz_path;
- int i_port;
- /* List of media */
- int i_media;
- vod_media_t **media;
- };
- static vod_media_t *MediaNew( vod_t *, char *, input_item_t * );
- 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 * );
- static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
- httpd_message_t *, httpd_message_t * );
- static char *SDPGenerate( vod_media_t *, char * );
- 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] = ' ';
- }
- /*****************************************************************************
- * 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.psz_host || !*url.psz_host )
- {
- if( url.psz_host ) free( url.psz_host );
- url.psz_host = strdup( "localhost" );
- }
- 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;
- p_sys->p_rtsp_host =
- httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
- if( !p_sys->p_rtsp_host )
- {
- msg_Err( p_vod, "cannot create http server (%s:%i)",
- url.psz_host, url.i_port );
- goto error;
- }
- p_sys->psz_host = strdup( url.psz_host );
- p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
- p_sys->i_port = url.i_port;
- vlc_UrlClean( &url );
- p_sys->media = 0;
- 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;
- error:
- if( p_sys && p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
- if( p_sys ) free( p_sys );
- vlc_UrlClean( &url );
- 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 );
- /* TODO delete medias */
- free( p_sys );
- }
- /*****************************************************************************
- * Media handling
- *****************************************************************************/
- static vod_media_t *MediaNew( vod_t *p_vod, char *psz_name,
- input_item_t *p_item )
- {
- vod_sys_t *p_sys = p_vod->p_sys;
- vod_media_t *p_media = malloc( sizeof(vod_media_t) );
- int i;
- memset( p_media, 0, sizeof(vod_media_t) );
- p_media->es = 0;
- p_media->psz_mux = 0;
- p_media->rtsp = 0;
- asprintf( &p_media->psz_rtsp_path, "%s%s", p_sys->psz_path, psz_name );
- p_media->p_rtsp_url =
- httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, 0, 0 );
- if( !p_media->p_rtsp_url )
- {
- msg_Err( p_vod, "cannot create http url (%s)", p_media->psz_rtsp_path);
- free( p_media->psz_rtsp_path );
- free( p_media );
- return 0;
- }
- msg_Dbg( p_vod, "created rtsp url: %s", p_media->psz_rtsp_path );
- asprintf( &p_media->psz_rtsp_control, "rtsp://%s:%d%s",
- p_sys->psz_host, p_sys->i_port, p_media->psz_rtsp_path );
- 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 );
- 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 );
- 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;
- 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++ )
- {
- MediaAddES( p_vod, p_media, p_item->es[i] );
- }
- vlc_mutex_unlock( &p_item->lock );
- return p_media;
- }
- static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
- {
- vod_sys_t *p_sys = p_vod->p_sys;
- msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
- 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 );
- if( p_media->psz_rtsp_control ) free( p_media->psz_rtsp_control );
- TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
- while( p_media->i_es ) MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
- vlc_mutex_destroy( &p_media->lock );
- 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) );
- char *psz_urlc;
- memset( p_es, 0, sizeof(media_es_t) );
- p_media->psz_mux = NULL;
- /* TODO: update SDP, etc... */
- asprintf( &psz_urlc, "%s/trackid=%d",
- p_media->psz_rtsp_path, p_media->i_es );
- msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
- switch( p_fmt->i_codec )
- {
- 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', ' ', ' ' ):
- p_es->i_payload_type = p_media->i_payload_type++;
- 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;
- 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' ):
- p_media->psz_mux = "ts";
- p_es->i_payload_type = 33;
- p_es->psz_rtpmap = strdup( "MP2T/90000" );
- break;
- case VLC_FOURCC( 'm', 'p', '2', 'p' ):
- p_media->psz_mux = "ps";
- p_es->i_payload_type = p_media->i_payload_type++;
- p_es->psz_rtpmap = strdup( "MP2P/90000" );
- break;
- default:
- msg_Err( p_vod, "cannot add this stream (unsupported "
- "codec: %4.4s)", (char*)&p_fmt->i_codec );
- free( p_es );
- return VLC_EGENERIC;
- }
- p_es->p_rtsp_url =
- httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, 0, 0 );
- if( !p_es->p_rtsp_url )
- {
- msg_Err( p_vod, "cannot create http url (%s)", psz_urlc );
- free( psz_urlc );
- free( p_es );
- return VLC_EGENERIC;
- }
- free( psz_urlc );
- httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
- RtspCallbackES, (void*)p_es );
- 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 );
- es_format_Copy( &p_es->fmt, p_fmt );
- p_es->p_vod = p_vod;
- p_es->p_media = p_media;
- #if 0
- /* 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;
- }
- #else
- p_es->i_port = 0;
- #endif
- 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++;
- return VLC_SUCCESS;
- }
- static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
- {
- media_es_t *p_es = 0;
- 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;
- msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
- vlc_mutex_lock( &p_media->lock );
- TAB_REMOVE( p_media->i_es, p_media->es, p_es );
- vlc_mutex_unlock( &p_media->lock );
- 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++;
- if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
- es_format_Clean( &p_es->fmt );
- }
- /****************************************************************************
- * RTSP server implementation
- ****************************************************************************/
- static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
- {
- rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
- memset( p_rtsp, 0, sizeof(rtsp_client_t) );
- p_rtsp->es = 0;
- p_rtsp->psz_session = psz_session;
- TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
- msg_Dbg( p_media->p_vod, "new session: %s", psz_session );
- return p_rtsp;
- }
- static rtsp_client_t *RtspClientGet( vod_media_t *p_media, char *psz_session )
- {
- int i;
- for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
- {
- if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
- {
- return p_media->rtsp[i];
- }
- }
- return NULL;
- }
- static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
- {
- msg_Dbg( p_media->p_vod, "closing session: %s", p_rtsp->psz_session );
- while( p_rtsp->i_es-- )
- {
- 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 );
- }
- TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
- free( p_rtsp->psz_session );
- free( p_rtsp );
- }
- 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;
- char *psz_destination = p_media->psz_destination;
- char *psz_session = NULL;
- rtsp_client_t *p_rtsp;
- if( answer == NULL || query == NULL ) return VLC_SUCCESS;
- fprintf( stderr, "RtspCallback query: type=%dn", query->i_type );
- answer->i_proto = HTTPD_PROTO_RTSP;
- answer->i_version = query->i_version;
- answer->i_type = HTTPD_MSG_ANSWER;
- switch( query->i_type )
- {
- case HTTPD_MSG_DESCRIBE:
- {
- char *psz_sdp =
- SDPGenerate( p_media, psz_destination ?
- psz_destination : "0.0.0.0" );
- answer->i_status = 200;
- answer->psz_status = strdup( "OK" );
- httpd_MsgAdd( answer, "Content-type", "%s", "application/sdp" );
- answer->p_body = psz_sdp;
- answer->i_body = strlen( psz_sdp );
- break;
- }
- case HTTPD_MSG_PLAY:
- {
- char *psz_output, *ip;
- int i, i_port_audio = 0, i_port_video = 0;
- /* for now only multicast so easy */
- 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_PLAY for session: %s", psz_session );
- p_rtsp = RtspClientGet( p_media, psz_session );
- if( !p_rtsp ) break;
- 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;
- if( !(ip = httpd_ClientIP( cl )) ) break;
- p_rtsp->b_playing = VLC_TRUE;
- /* FIXME for != 1 video and 1 audio */
- for( i = 0; i < p_rtsp->i_es; i++ )
- {
- 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;
- }
- if( p_media->psz_mux )
- {
- asprintf( &psz_output, "rtp{dst=%s,port=%i,mux=%s}",
- ip, i_port_video, p_media->psz_mux );
- }
- else
- {
- asprintf( &psz_output, "rtp{dst=%s,port-video=%i,"
- "port-audio=%i}", ip, i_port_video, i_port_audio );
- }
- vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PLAY,
- psz_output );
- free( psz_output );
- free( ip );
- break;
- }
- case HTTPD_MSG_PAUSE:
- psz_session = httpd_MsgGet( query, "Session" );
- msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
- 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" );
- answer->i_body = 0;
- answer->p_body = NULL;
- break;
- 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);
- p_rtsp = RtspClientGet( p_media, psz_session );
- if( !p_rtsp ) break;
- vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_STOP );
- RtspClientDel( p_media, p_rtsp );
- break;
- default:
- return VLC_EGENERIC;
- }
- httpd_MsgAdd( answer, "Server", "VLC Server" );
- httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
- httpd_MsgAdd( answer, "Cseq", "%d",
- atoi( httpd_MsgGet( query, "Cseq" ) ) );
- httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
- if( psz_session )
- {
- httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session );
- }
- return VLC_SUCCESS;
- }
- static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
- httpd_message_t *answer, httpd_message_t *query )
- {
- media_es_t *p_es = (media_es_t*)p_args;
- vod_media_t *p_media = p_es->p_media;
- vod_t *p_vod = p_media->p_vod;
- char *psz_session = NULL;
- char *psz_transport = NULL;
- int i;
- if( answer == NULL || query == NULL ) return VLC_SUCCESS;
- fprintf( stderr, "RtspCallback query: type=%dn", query->i_type );
- answer->i_proto = HTTPD_PROTO_RTSP;
- answer->i_version = query->i_version;
- answer->i_type = HTTPD_MSG_ANSWER;
- switch( query->i_type )
- {
- case HTTPD_MSG_SETUP:
- psz_transport = httpd_MsgGet( query, "Transport" );
- fprintf( stderr, "HTTPD_MSG_SETUP: transport=%sn", psz_transport );
- if( strstr( psz_transport, "multicast" ) && p_media->psz_destination )
- {
- fprintf( stderr, "HTTPD_MSG_SETUP: multicastn" );
- answer->i_status = 200;
- answer->psz_status = strdup( "OK" );
- answer->i_body = 0;
- answer->p_body = NULL;
- psz_session = httpd_MsgGet( query, "Session" );
- if( !psz_session || !*psz_session )
- {
- asprintf( &psz_session, "%d", rand() );
- }
- httpd_MsgAdd( answer, "Transport",
- "RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d",
- p_media->psz_destination, p_media->i_port,
- p_media->i_port+1, p_media->i_ttl );
- }
- else if( strstr( psz_transport, "unicast" ) &&
- strstr( psz_transport, "client_port=" ) )
- {
- rtsp_client_t *p_rtsp;
- rtsp_client_es_t *p_rtsp_es;
- char *ip = httpd_ClientIP( cl );
- int i_port = atoi( strstr( psz_transport, "client_port=" ) +
- strlen("client_port=") );
- if( !ip )
- {
- answer->i_status = 400;
- answer->psz_status = strdup( "Internal server error" );
- answer->i_body = 0;
- answer->p_body = NULL;
- break;
- }
- fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%dn",
- ip, i_port );
- psz_session = httpd_MsgGet( query, "Session" );
- if( !psz_session || !*psz_session )
- {
- asprintf( &psz_session, "%d", rand() );
- p_rtsp = RtspClientNew( p_media, psz_session );
- }
- else
- {
- p_rtsp = RtspClientGet( p_media, psz_session );
- if( !p_rtsp )
- {
- /* FIXME right error code */
- answer->i_status = 400;
- answer->psz_status = strdup( "Unknown session id" );
- answer->i_body = 0;
- answer->p_body = NULL;
- free( ip );
- break;
- }
- }
- p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
- 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;
- httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
- i_port, i_port + 1 );
- }
- else /* TODO strstr( psz_transport, "interleaved" ) ) */
- {
- answer->i_status = 400;
- answer->psz_status = strdup( "Bad Request" );
- answer->i_body = 0;
- answer->p_body = NULL;
- }
- break;
- case HTTPD_MSG_TEARDOWN:
- {
- rtsp_client_t *p_rtsp;
- 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;
- }
- case HTTPD_MSG_PLAY:
- case HTTPD_MSG_PAUSE:
- answer->i_status = 460;
- answer->psz_status = strdup( "Only Aggregate Operation Allowed" );
- answer->i_body = 0;
- answer->p_body = NULL;
- break;
- default:
- return VLC_EGENERIC;
- break;
- }
- httpd_MsgAdd( answer, "Server", "VLC Server" );
- httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
- httpd_MsgAdd( answer, "Cseq", "%d",
- atoi( httpd_MsgGet( query, "Cseq" ) ) );
- 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 ?
- *****************************************************************************/
- static char *SDPGenerate( vod_media_t *p_media, char *psz_destination )
- {
- int i, i_size;
- char *p, *psz_sdp;
- /* Calculate size */
- i_size = strlen( "v=0rn" ) +
- strlen( "o=- * * IN IP4 127.0.0.1rn" ) + 10 + 10 +
- strlen( "s=*rn" ) + strlen( p_media->psz_session_name ) +
- strlen( "i=*rn" ) + strlen( p_media->psz_session_description ) +
- strlen( "u=*rn" ) + strlen( p_media->psz_session_url ) +
- strlen( "e=*rn" ) + strlen( p_media->psz_session_email ) +
- strlen( "t=0 0rn" ) + /* FIXME */
- strlen( "a=tool:"PACKAGE_STRING"rn" ) +
- strlen( "c=IN IP4 */*rn" ) + 20 + 10 +
- strlen( psz_destination ? psz_destination : "0.0.0.0" ) ;
- for( i = 0; i < p_media->i_es; i++ )
- {
- media_es_t *p_es = p_media->es[i];
- i_size += strlen( "m=**d*o * RTP/AVP *rn" ) + 10 + 10;
- if( p_es->psz_rtpmap )
- {
- i_size += strlen( "a=rtpmap:* *rn" ) +
- strlen( p_es->psz_rtpmap ) + 10;
- }
- if( p_es->psz_fmtp )
- {
- i_size += strlen( "a=fmtp:* *rn" ) +
- strlen( p_es->psz_fmtp ) + 10;
- }
- i_size += strlen( "a=control:*/trackid=*rn" ) +
- strlen( p_media->psz_rtsp_control ) + 10;
- }
- p = psz_sdp = malloc( i_size );
- p += sprintf( p, "v=0rn" );
- p += sprintf( p, "o=- "I64Fd" %d IN IP4 127.0.0.1rn",
- p_media->i_sdp_id, p_media->i_sdp_version );
- if( *p_media->psz_session_name )
- p += sprintf( p, "s=%srn", p_media->psz_session_name );
- if( *p_media->psz_session_description )
- p += sprintf( p, "i=%srn", p_media->psz_session_description );
- if( *p_media->psz_session_url )
- p += sprintf( p, "u=%srn", p_media->psz_session_url );
- if( *p_media->psz_session_email )
- p += sprintf( p, "e=%srn", p_media->psz_session_email );
- p += sprintf( p, "t=0 0rn" ); /* FIXME */
- p += sprintf( p, "a=tool:"PACKAGE_STRING"rn" );
- p += sprintf( p, "c=IN IP4 %s/%drn", psz_destination ?
- psz_destination : "0.0.0.0", p_media->i_ttl );
- for( i = 0; i < p_media->i_es; i++ )
- {
- media_es_t *p_es = p_media->es[i];
- if( p_es->fmt.i_cat == AUDIO_ES )
- {
- p += sprintf( p, "m=audio %d RTP/AVP %drn",
- p_es->i_port, p_es->i_payload_type );
- }
- else if( p_es->fmt.i_cat == VIDEO_ES )
- {
- p += sprintf( p, "m=video %d RTP/AVP %drn",
- p_es->i_port, p_es->i_payload_type );
- }
- else
- {
- continue;
- }
- if( p_es->psz_rtpmap )
- {
- p += sprintf( p, "a=rtpmap:%d %srn", p_es->i_payload_type,
- p_es->psz_rtpmap );
- }
- if( p_es->psz_fmtp )
- {
- p += sprintf( p, "a=fmtp:%d %srn", p_es->i_payload_type,
- p_es->psz_fmtp );
- }
- p += sprintf( p, "a=control:%s/trackid=%drn",
- p_media->psz_rtsp_control, i );
- }
- fprintf( stderr, psz_sdp );
- return psz_sdp;
- }