X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fstream_out%2Frtsp.c;h=30e35526bc87da2150294ab9287a93cafb915265;hb=5cf39390c0d9a4c9ef2860746126f0bbad3370b6;hp=51c5c3c7e108b6c56c68877d01be3f508cdc2751;hpb=39d3b160af5cb532620d80947f2c71cf297ffcf8;p=vlc diff --git a/modules/stream_out/rtsp.c b/modules/stream_out/rtsp.c index 51c5c3c7e1..30e35526bc 100644 --- a/modules/stream_out/rtsp.c +++ b/modules/stream_out/rtsp.c @@ -1,8 +1,10 @@ /***************************************************************************** * rtsp.c: RTSP support for RTP stream output module ***************************************************************************** - * Copyright (C) 2003-2007 the VideoLAN team - * $Id: rtp.c 21407 2007-08-22 20:10:41Z courmisch $ + * Copyright (C) 2003-2004 the VideoLAN team + * Copyright © 2007 Rémi Denis-Courmont + * + * $Id$ * * Authors: Laurent Aimar * @@ -24,256 +26,287 @@ /***************************************************************************** * Preamble *****************************************************************************/ -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include #include #include #include #include +#include +#include +#include +#include #include "rtp.h" -/* For unicast/interleaved streaming */ -struct rtsp_client_t -{ - char *psz_session; - int64_t i_last; /* for timeout */ - - /* is it in "play" state */ - vlc_bool_t b_playing; +typedef struct rtsp_session_t rtsp_session_t; - /* output (id-access) */ - int i_id; - sout_stream_id_t **id; - int i_access; - sout_access_out_t **access; +struct rtsp_stream_t +{ + vlc_mutex_t lock; + sout_stream_t *owner; + httpd_host_t *host; + httpd_url_t *url; + char *psz_path; + const char *track_fmt; + unsigned port; + + int sessionc; + rtsp_session_t **sessionv; }; -static int RtspCallback( httpd_callback_sys_t *p_args, - httpd_client_t *cl, - httpd_message_t *answer, httpd_message_t *query ); - - -int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url ) +static int RtspCallback( httpd_callback_sys_t *p_args, + httpd_client_t *cl, httpd_message_t *answer, + const httpd_message_t *query ); +static int RtspCallbackId( httpd_callback_sys_t *p_args, + httpd_client_t *cl, httpd_message_t *answer, + const httpd_message_t *query ); +static void RtspClientDel( rtsp_stream_t *rtsp, rtsp_session_t *session ); + +rtsp_stream_t *RtspSetup( sout_stream_t *p_stream, const vlc_url_t *url ) { - sout_stream_sys_t *p_sys = p_stream->p_sys; + rtsp_stream_t *rtsp = malloc( sizeof( *rtsp ) ); - msg_Dbg( p_stream, "rtsp setup: %s : %d / %s\n", url->psz_host, url->i_port, url->psz_path ); - - p_sys->p_rtsp_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 554 ); - if( p_sys->p_rtsp_host == NULL ) + if( rtsp == NULL || ( url->i_port > 99999 ) ) { - return VLC_EGENERIC; + free( rtsp ); + return NULL; } - p_sys->psz_rtsp_path = strdup( url->psz_path ? url->psz_path : "/" ); - p_sys->psz_rtsp_control = malloc (strlen( url->psz_host ) + 20 + strlen( p_sys->psz_rtsp_path ) + 1 ); - sprintf( p_sys->psz_rtsp_control, "rtsp://%s:%d%s", - url->psz_host, url->i_port > 0 ? url->i_port : 554, p_sys->psz_rtsp_path ); - - p_sys->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, p_sys->psz_rtsp_path, NULL, NULL, NULL ); - if( p_sys->p_rtsp_url == 0 ) - { - return VLC_EGENERIC; - } - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_DESCRIBE, RtspCallback, (void*)p_stream ); - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallback, (void*)p_stream ); - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream ); - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream ); - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)p_stream ); + rtsp->owner = p_stream; + rtsp->sessionc = 0; + rtsp->sessionv = NULL; + rtsp->host = NULL; + rtsp->url = NULL; + rtsp->psz_path = NULL; + vlc_mutex_init( &rtsp->lock ); + + rtsp->port = (url->i_port > 0) ? url->i_port : 554; + rtsp->psz_path = strdup( ( url->psz_path != NULL ) ? url->psz_path : "/" ); + if( rtsp->psz_path == NULL ) + goto error; + + assert( strlen( rtsp->psz_path ) > 0 ); + if( rtsp->psz_path[strlen( rtsp->psz_path ) - 1] == '/' ) + rtsp->track_fmt = "%strackID=%u"; + else + rtsp->track_fmt = "%s/trackID=%u"; + + msg_Dbg( p_stream, "RTSP stream: host %s port %d at %s", + url->psz_host, rtsp->port, rtsp->psz_path ); + + rtsp->host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, + rtsp->port ); + if( rtsp->host == NULL ) + goto error; + + rtsp->url = httpd_UrlNewUnique( rtsp->host, rtsp->psz_path, + NULL, NULL, NULL ); + if( rtsp->url == NULL ) + goto error; + + httpd_UrlCatch( rtsp->url, HTTPD_MSG_DESCRIBE, RtspCallback, (void*)rtsp ); + httpd_UrlCatch( rtsp->url, HTTPD_MSG_SETUP, RtspCallback, (void*)rtsp ); + httpd_UrlCatch( rtsp->url, HTTPD_MSG_PLAY, RtspCallback, (void*)rtsp ); + httpd_UrlCatch( rtsp->url, HTTPD_MSG_PAUSE, RtspCallback, (void*)rtsp ); + httpd_UrlCatch( rtsp->url, HTTPD_MSG_GETPARAMETER, RtspCallback, + (void*)rtsp ); + httpd_UrlCatch( rtsp->url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)rtsp ); + return rtsp; - return VLC_SUCCESS; +error: + RtspUnsetup( rtsp ); + return NULL; } -static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, const char *psz_session ) +void RtspUnsetup( rtsp_stream_t *rtsp ) { - rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t )); + while( rtsp->sessionc > 0 ) + RtspClientDel( rtsp, rtsp->sessionv[0] ); - rtsp->psz_session = strdup( psz_session ); - rtsp->i_last = 0; - rtsp->b_playing = VLC_FALSE; - rtsp->i_id = 0; - rtsp->id = NULL; - rtsp->i_access = 0; - rtsp->access = NULL; + if( rtsp->url ) + httpd_UrlDelete( rtsp->url ); - TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp ); + if( rtsp->host ) + httpd_HostDelete( rtsp->host ); - return rtsp; + free( rtsp->psz_path ); + vlc_mutex_destroy( &rtsp->lock ); + + free( rtsp ); } -static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, const char *psz_session ) +struct rtsp_stream_id_t { - int i; + rtsp_stream_t *stream; + sout_stream_id_t *sout_id; + httpd_url_t *url; + const char *dst; + int ttl; + uint32_t ssrc; + uint16_t loport, hiport; +}; - if( !psz_session ) return NULL; - - for( i = 0; i < p_stream->p_sys->i_rtsp; i++ ) - { - if( !strcmp( p_stream->p_sys->rtsp[i]->psz_session, psz_session ) ) - { - return p_stream->p_sys->rtsp[i]; - } - } - return NULL; -} +typedef struct rtsp_strack_t rtsp_strack_t; -/*static*/ void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp ) +/* For unicast streaming */ +struct rtsp_session_t { - int i; - TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp ); + rtsp_stream_t *stream; + uint64_t id; - for( i = 0; i < rtsp->i_access; i++ ) - { - sout_AccessOutDelete( rtsp->access[i] ); - } - if( rtsp->id ) free( rtsp->id ); - if( rtsp->access ) free( rtsp->access ); - - free( rtsp->psz_session ); - free( rtsp ); -} + /* output (id-access) */ + int trackc; + rtsp_strack_t *trackv; +}; -/** Aggregate RTSP callback */ -static int RtspCallback( httpd_callback_sys_t *p_args, - httpd_client_t *cl, - httpd_message_t *answer, httpd_message_t *query ) +/* Unicast session track */ +struct rtsp_strack_t { - sout_stream_t *p_stream = (sout_stream_t*)p_args; - sout_stream_sys_t *p_sys = p_stream->p_sys; - char *psz_destination = p_sys->psz_destination; - const char *psz_session = NULL; - const char *psz_cseq = NULL; + sout_stream_id_t *id; + int fd; + bool playing; +}; - if( answer == NULL || query == NULL ) + +rtsp_stream_id_t *RtspAddId( rtsp_stream_t *rtsp, sout_stream_id_t *sid, + unsigned num, uint32_t ssrc, + /* Multicast stuff - TODO: cleanup */ + const char *dst, int ttl, + unsigned loport, unsigned hiport ) +{ + char urlbuf[sizeof( "/trackID=123" ) + strlen( rtsp->psz_path )]; + rtsp_stream_id_t *id = malloc( sizeof( *id ) ); + httpd_url_t *url; + + if( id == NULL ) + return NULL; + + id->stream = rtsp; + id->sout_id = sid; + id->ssrc = ssrc; + /* TODO: can we assume that this need not be strdup'd? */ + id->dst = dst; + if( id->dst != NULL ) { - return VLC_SUCCESS; + id->ttl = ttl; + id->loport = loport; + id->hiport = hiport; } - //fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type ); - answer->i_proto = HTTPD_PROTO_RTSP; - answer->i_version= query->i_version; - answer->i_type = HTTPD_MSG_ANSWER; - answer->i_body = 0; - answer->p_body = NULL; + /* FIXME: num screws up if any ES has been removed and re-added */ + snprintf( urlbuf, sizeof( urlbuf ), rtsp->track_fmt, rtsp->psz_path, + num ); + msg_Dbg( rtsp->owner, "RTSP: adding %s", urlbuf ); + url = id->url = httpd_UrlNewUnique( rtsp->host, urlbuf, NULL, NULL, NULL ); - if( httpd_MsgGet( query, "Require" ) != NULL ) + if( url == NULL ) { - answer->i_status = 551; - httpd_MsgAdd( query, "Unsupported", "%s", - httpd_MsgGet( query, "Require" ) ); + free( id ); + return NULL; } - else - switch( query->i_type ) - { - case HTTPD_MSG_DESCRIBE: - { - char *psz_sdp = SDPGenerate( p_stream, psz_destination, VLC_TRUE ); - - answer->i_status = 200; - httpd_MsgAdd( answer, "Content-Type", "%s", "application/sdp" ); - httpd_MsgAdd( answer, "Content-Base", "%s", p_sys->psz_rtsp_control ); - answer->p_body = (uint8_t *)psz_sdp; - answer->i_body = strlen( psz_sdp ); - break; - } - - case HTTPD_MSG_SETUP: - answer->i_status = 459; - break; - case HTTPD_MSG_PLAY: - { - rtsp_client_t *rtsp; - answer->i_status = 200; + httpd_UrlCatch( url, HTTPD_MSG_DESCRIBE, RtspCallbackId, (void *)id ); + httpd_UrlCatch( url, HTTPD_MSG_SETUP, RtspCallbackId, (void *)id ); + httpd_UrlCatch( url, HTTPD_MSG_PLAY, RtspCallbackId, (void *)id ); + httpd_UrlCatch( url, HTTPD_MSG_PAUSE, RtspCallbackId, (void *)id ); + httpd_UrlCatch( url, HTTPD_MSG_GETPARAMETER, RtspCallbackId, (void *)id ); + httpd_UrlCatch( url, HTTPD_MSG_TEARDOWN, RtspCallbackId, (void *)id ); - psz_session = httpd_MsgGet( query, "Session" ); - rtsp = RtspClientGet( p_stream, psz_session ); - if( rtsp && !rtsp->b_playing ) - { - int i_id; - /* FIXME */ - rtsp->b_playing = VLC_TRUE; + return id; +} - vlc_mutex_lock( &p_sys->lock_es ); - for( i_id = 0; i_id < rtsp->i_id; i_id++ ) - { - sout_stream_id_t *id = rtsp->id[i_id]; - int i; - for( i = 0; i < p_sys->i_es; i++ ) - { - if( id == p_sys->es[i] ) - break; - } - if( i >= p_sys->i_es ) continue; +void RtspDelId( rtsp_stream_t *rtsp, rtsp_stream_id_t *id ) +{ + vlc_mutex_lock( &rtsp->lock ); + for( int i = 0; i < rtsp->sessionc; i++ ) + { + rtsp_session_t *ses = rtsp->sessionv[i]; - rtp_add_sink( id, rtsp->access[i_id] ); - } - vlc_mutex_unlock( &p_sys->lock_es ); + for( int j = 0; j < ses->trackc; j++ ) + { + if( ses->trackv[j].id == id->sout_id ) + { + rtsp_strack_t *tr = ses->trackv + j; + net_Close( tr->fd ); + REMOVE_ELEM( ses->trackv, ses->trackc, j ); } - break; } + } - case HTTPD_MSG_PAUSE: - answer->i_status = 405; - httpd_MsgAdd( answer, "Allow", "DESCRIBE, PLAY, TEARDOWN" ); - break; + vlc_mutex_unlock( &rtsp->lock ); + httpd_UrlDelete( id->url ); + free( id ); +} - case HTTPD_MSG_TEARDOWN: - { - rtsp_client_t *rtsp; - /* for now only multicast so easy again */ - answer->i_status = 200; +/** rtsp must be locked */ +static +rtsp_session_t *RtspClientNew( rtsp_stream_t *rtsp ) +{ + rtsp_session_t *s = malloc( sizeof( *s ) ); + if( s == NULL ) + return NULL; - psz_session = httpd_MsgGet( query, "Session" ); - rtsp = RtspClientGet( p_stream, psz_session ); - if( rtsp ) - { - int i_id; + s->stream = rtsp; + vlc_rand_bytes (&s->id, sizeof (s->id)); + s->trackc = 0; + s->trackv = NULL; - vlc_mutex_lock( &p_sys->lock_es ); - for( i_id = 0; i_id < rtsp->i_id; i_id++ ) - { - sout_stream_id_t *id = rtsp->id[i_id]; - int i; + TAB_APPEND( rtsp->sessionc, rtsp->sessionv, s ); - for( i = 0; i < p_sys->i_es; i++ ) - { - if( id == p_sys->es[i] ) - break; - } - if( i >= p_sys->i_es ) continue; + return s; +} - rtp_del_sink( id, rtsp->access[i_id] ); - } - vlc_mutex_unlock( &p_sys->lock_es ); - RtspClientDel( p_stream, rtsp ); - } - break; - } +/** rtsp must be locked */ +static +rtsp_session_t *RtspClientGet( rtsp_stream_t *rtsp, const char *name ) +{ + char *end; + uint64_t id; + int i; - default: - return VLC_EGENERIC; + if( name == NULL ) + return NULL; + + errno = 0; + id = strtoull( name, &end, 0x10 ); + if( errno || *end ) + return NULL; + + /* FIXME: use a hash/dictionary */ + for( i = 0; i < rtsp->sessionc; i++ ) + { + if( rtsp->sessionv[i]->id == id ) + return rtsp->sessionv[i]; } + return NULL; +} - httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING ); - httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body ); - psz_cseq = httpd_MsgGet( query, "Cseq" ); - if( psz_cseq ) - httpd_MsgAdd( answer, "Cseq", "%s", psz_cseq ); - httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" ); - if( psz_session ) - httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session ); - return VLC_SUCCESS; +/** rtsp must be locked */ +static +void RtspClientDel( rtsp_stream_t *rtsp, rtsp_session_t *session ) +{ + int i; + TAB_REMOVE( rtsp->sessionc, rtsp->sessionv, session ); + + for( i = 0; i < session->trackc; i++ ) + rtp_del_sink( session->trackv[i].id, session->trackv[i].fd ); + + free( session->trackv ); + free( session ); } @@ -303,56 +336,116 @@ static inline const char *parameter_next( const char *str ) } -/** Non-aggregate RTSP callback */ -/*static*/ int RtspCallbackId( httpd_callback_sys_t *p_args, - httpd_client_t *cl, - httpd_message_t *answer, httpd_message_t *query ) +/** RTSP requests handler + * @param id selected track for non-aggregate URLs, + * NULL for aggregate URLs + */ +static int RtspHandler( rtsp_stream_t *rtsp, rtsp_stream_id_t *id, + httpd_client_t *cl, + httpd_message_t *answer, + const httpd_message_t *query ) { - sout_stream_id_t *id = (sout_stream_id_t*)p_args; - sout_stream_t *p_stream = id->p_stream; - sout_stream_sys_t *p_sys = p_stream->p_sys; - char psz_session_init[21]; - const char *psz_session; - const char *psz_cseq; - - if( answer == NULL || query == NULL ) + sout_stream_t *p_stream = rtsp->owner; + char psz_sesbuf[17]; + const char *psz_session = NULL, *psz; + char control[sizeof("rtsp://[]:12345") + NI_MAXNUMERICHOST + + strlen( rtsp->psz_path )]; + time_t now; + + time (&now); + + if( answer == NULL || query == NULL || cl == NULL ) return VLC_SUCCESS; - //fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type ); + else + { + /* Build self-referential control URL */ + char ip[NI_MAXNUMERICHOST], *ptr; + + httpd_ServerIP( cl, ip ); + ptr = strchr( ip, '%' ); + if( ptr != NULL ) + *ptr = '\0'; + + if( strchr( ip, ':' ) != NULL ) + sprintf( control, "rtsp://[%s]:%u%s", ip, rtsp->port, + rtsp->psz_path ); + else + sprintf( control, "rtsp://%s:%u%s", ip, rtsp->port, + rtsp->psz_path ); + } /* */ answer->i_proto = HTTPD_PROTO_RTSP; - answer->i_version= query->i_version; + answer->i_version= 0; answer->i_type = HTTPD_MSG_ANSWER; answer->i_body = 0; answer->p_body = NULL; - /* Create new session ID if needed */ - psz_session = httpd_MsgGet( query, "Session" ); - if( psz_session == NULL ) - { - /* FIXME: should be somewhat secure randomness */ - snprintf( psz_session_init, sizeof(psz_session_init), I64Fd, - NTPtime64() + rand() ); + httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING ); + + /* Date: is always allowed, and sometimes mandatory with RTSP/2.0. */ + struct tm ut; + if (gmtime_r (&now, &ut) != NULL) + { /* RFC1123 format, GMT is mandatory */ + static const char wdays[7][4] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; + static const char mons[12][4] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; + httpd_MsgAdd (answer, "Date", "%s, %02u %s %04u %02u:%02u:%02u GMT", + wdays[ut.tm_wday], ut.tm_mday, mons[ut.tm_mon], + 1900 + ut.tm_year, ut.tm_hour, ut.tm_min, ut.tm_sec); } + if( query->i_proto != HTTPD_PROTO_RTSP ) + { + answer->i_status = 505; + } + else if( httpd_MsgGet( query, "Require" ) != NULL ) { answer->i_status = 551; - httpd_MsgAdd( query, "Unsupported", "%s", + httpd_MsgAdd( answer, "Unsupported", "%s", httpd_MsgGet( query, "Require" ) ); } else switch( query->i_type ) { + case HTTPD_MSG_DESCRIBE: + { /* Aggregate-only */ + if( id != NULL ) + { + answer->i_status = 460; + break; + } + + answer->i_status = 200; + httpd_MsgAdd( answer, "Content-Type", "%s", "application/sdp" ); + httpd_MsgAdd( answer, "Content-Base", "%s", control ); + answer->p_body = (uint8_t *)SDPGenerate( rtsp->owner, control ); + if( answer->p_body != NULL ) + answer->i_body = strlen( (char *)answer->p_body ); + else + answer->i_status = 500; + break; + } + case HTTPD_MSG_SETUP: - { + /* Non-aggregate-only */ + if( id == NULL ) + { + answer->i_status = 459; + break; + } + + psz_session = httpd_MsgGet( query, "Session" ); answer->i_status = 461; for( const char *tpt = httpd_MsgGet( query, "Transport" ); tpt != NULL; tpt = transport_next( tpt ) ) { - vlc_bool_t b_multicast = VLC_TRUE, b_unsupp = VLC_FALSE; + bool b_multicast = true, b_unsupp = false; unsigned loport = 5004, hiport = 5005; /* from RFC3551 */ /* Check transport protocol. */ @@ -371,12 +464,13 @@ static inline const char *parameter_next( const char *str ) opt = parameter_next( opt ) ) { if( strncmp( opt, "multicast", 9 ) == 0) - b_multicast = VLC_TRUE; + b_multicast = true; else if( strncmp( opt, "unicast", 7 ) == 0 ) - b_multicast = VLC_FALSE; + b_multicast = false; else - if( sscanf( opt, "client_port=%u-%u", &loport, &hiport ) == 2 ) + if( sscanf( opt, "client_port=%u-%u", &loport, &hiport ) + == 2 ) ; else if( strncmp( opt, "mode=", 5 ) == 0 ) @@ -385,26 +479,32 @@ static inline const char *parameter_next( const char *str ) && strncasecmp( opt + 5, "\"PLAY\"", 6 ) ) { /* Not playing?! */ - b_unsupp = VLC_TRUE; + b_unsupp = true; break; } } else + if( strncmp( opt,"destination=", 12 ) == 0 ) + { + answer->i_status = 403; + b_unsupp = true; + } + else { /* * Every other option is unsupported: * - * "source" and "append" are invalid. + * "source" and "append" are invalid (server-only); + * "ssrc" also (as clarified per RFC2326bis). * * For multicast, "port", "layers", "ttl" are set by the * stream output configuration. * - * For unicast, we do not allow "destination" as it - * carries a DoS risk, and we decide on "server_port". + * For unicast, we want to decide "server_port" values. * - * "interleaved" and "ssrc" are not implemented. + * "interleaved" is not implemented. */ - b_unsupp = VLC_TRUE; + b_unsupp = true; break; } } @@ -414,80 +514,79 @@ static inline const char *parameter_next( const char *str ) if( b_multicast ) { - if( p_sys->psz_destination == NULL ) + const char *dst = id->dst; + if( dst == NULL ) continue; + if( psz_session == NULL ) + { + /* Create a dummy session ID */ + snprintf( psz_sesbuf, sizeof( psz_sesbuf ), "%d", + rand() ); + psz_session = psz_sesbuf; + } answer->i_status = 200; httpd_MsgAdd( answer, "Transport", - "RTP/AVP/UDP;destination=%s;port=%d-%d;" + "RTP/AVP/UDP;destination=%s;port=%u-%u;" "ttl=%d;mode=play", - p_sys->psz_destination, id->i_port, id->i_port+1, - ( p_sys->i_ttl > 0 ) ? p_sys->i_ttl : 1 ); + dst, id->loport, id->hiport, + ( id->ttl > 0 ) ? id->ttl : 1 ); } else { - char ip[NI_MAXNUMERICHOST], psz_access[22], - url[NI_MAXNUMERICHOST + 8]; - sout_access_out_t *p_access; - rtsp_client_t *rtsp = NULL; + char ip[NI_MAXNUMERICHOST], src[NI_MAXNUMERICHOST]; + rtsp_session_t *ses = NULL; + rtsp_strack_t track = { id->sout_id, -1, false }; + int sport; + + if( httpd_ClientIP( cl, ip ) == NULL ) + { + answer->i_status = 500; + continue; + } - if( ( hiport - loport ) > 1 ) + track.fd = net_ConnectDgram( p_stream, ip, loport, -1, + IPPROTO_UDP ); + if( track.fd == -1 ) + { + msg_Err( p_stream, + "cannot create RTP socket for %s port %u", + ip, loport ); + answer->i_status = 500; continue; + } + net_GetSockAddress( track.fd, src, &sport ); + + vlc_mutex_lock( &rtsp->lock ); if( psz_session == NULL ) { - psz_session = psz_session_init; - rtsp = RtspClientNew( p_stream, psz_session ); + ses = RtspClientNew( rtsp ); + snprintf( psz_sesbuf, sizeof( psz_sesbuf ), "%"PRIx64, + ses->id ); + psz_session = psz_sesbuf; } else { /* FIXME: we probably need to remove an access out, * if there is already one for the same ID */ - rtsp = RtspClientGet( p_stream, psz_session ); - if( rtsp == NULL ) + ses = RtspClientGet( rtsp, psz_session ); + if( ses == NULL ) { answer->i_status = 454; + vlc_mutex_unlock( &rtsp->lock ); continue; } } - if( httpd_ClientIP( cl, ip ) == NULL ) - { - answer->i_status = 500; - continue; - } - - if( p_sys->i_ttl > 0 ) - snprintf( psz_access, sizeof( psz_access ), - "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl ); - else - strcpy( psz_access, "udp{raw,rtcp}" ); - - snprintf( url, sizeof( url ), - ( strchr( ip, ':' ) != NULL ) ? "[%s]:%d" : "%s:%d", - ip, loport ); - - p_access = sout_AccessOutNew( p_stream->p_sout, - psz_access, url ); - if( p_access == NULL ) - { - msg_Err( p_stream, - "cannot create access output for %s://%s", - psz_access, url ); - answer->i_status = 500; - break; - } - - TAB_APPEND( rtsp->i_id, rtsp->id, id ); - TAB_APPEND( rtsp->i_access, rtsp->access, p_access ); - - char *src = var_GetNonEmptyString (p_access, "src-addr"); - int sport = var_GetInteger (p_access, "src-port"); + INSERT_ELEM( ses->trackv, ses->trackc, ses->trackc, + track ); + vlc_mutex_unlock( &rtsp->lock ); httpd_ServerIP( cl, ip ); - if( ( src != NULL ) && strcmp( src, ip ) ) + if( strcmp( src, ip ) ) { /* Specify source IP if it is different from the RTSP * control connection server address */ @@ -497,39 +596,160 @@ static inline const char *parameter_next( const char *str ) httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;unicast;source=%s;" "client_port=%u-%u;server_port=%u-%u;" - "mode=play", - src, loport, hiport, sport, sport + 1 ); + "ssrc=%08X;mode=play", + src, loport, loport + 1, sport, + sport + 1, id->ssrc ); } else { httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;unicast;" "client_port=%u-%u;server_port=%u-%u;" - "mode=play", - loport, hiport, sport, sport + 1 ); + "ssrc=%08X;mode=play", + loport, loport + 1, sport, sport + 1, + id->ssrc ); } answer->i_status = 200; - free( src ); } break; } break; + + case HTTPD_MSG_PLAY: + { + rtsp_session_t *ses; + answer->i_status = 200; + + psz_session = httpd_MsgGet( query, "Session" ); + const char *range = httpd_MsgGet (query, "Range"); + if (range && strncmp (range, "npt=", 4)) + { + answer->i_status = 501; + break; + } + + vlc_mutex_lock( &rtsp->lock ); + ses = RtspClientGet( rtsp, psz_session ); + if( ses != NULL ) + { + /* FIXME: we really need to limit the number of tracks... */ + char info[ses->trackc * ( strlen( control ) + + sizeof("/trackID=123;seq=65535, ") ) + 1]; + size_t infolen = 0; + + for( int i = 0; i < ses->trackc; i++ ) + { + rtsp_strack_t *tr = ses->trackv + i; + if( ( id == NULL ) || ( tr->id == id->sout_id ) ) + { + if( !tr->playing ) + { + tr->playing = true; + rtp_add_sink( tr->id, tr->fd, false ); + } + infolen += sprintf( info + infolen, + "%s/trackID=%u;seq=%u, ", control, + rtp_get_num( tr->id ), + rtp_get_seq( tr->id ) ); + } + } + if( infolen > 0 ) + { + info[infolen - 2] = '\0'; /* remove trailing ", " */ + httpd_MsgAdd( answer, "RTP-Info", "%s", info ); + } + } + vlc_mutex_unlock( &rtsp->lock ); + + if( httpd_MsgGet( query, "Scale" ) != NULL ) + httpd_MsgAdd( answer, "Scale", "1." ); + break; + } + + case HTTPD_MSG_PAUSE: + answer->i_status = 405; + httpd_MsgAdd( answer, "Allow", + "%s, TEARDOWN, PLAY, GET_PARAMETER", + ( id != NULL ) ? "SETUP" : "DESCRIBE" ); + break; + + case HTTPD_MSG_GETPARAMETER: + if( query->i_body > 0 ) + { + answer->i_status = 451; + break; + } + + psz_session = httpd_MsgGet( query, "Session" ); + answer->i_status = 200; + break; + + case HTTPD_MSG_TEARDOWN: + { + rtsp_session_t *ses; + + answer->i_status = 200; + + psz_session = httpd_MsgGet( query, "Session" ); + + vlc_mutex_lock( &rtsp->lock ); + ses = RtspClientGet( rtsp, psz_session ); + if( ses != NULL ) + { + if( id == NULL ) /* Delete the entire session */ + RtspClientDel( rtsp, ses ); + else /* Delete one track from the session */ + for( int i = 0; i < ses->trackc; i++ ) + { + if( ses->trackv[i].id == id->sout_id ) + { + rtp_del_sink( id->sout_id, ses->trackv[i].fd ); + REMOVE_ELEM( ses->trackv, ses->trackc, i ); + } + } + } + vlc_mutex_unlock( &rtsp->lock ); + break; } default: - answer->i_status = 460; - break; + return VLC_EGENERIC; } - psz_cseq = httpd_MsgGet( query, "Cseq" ); - if( psz_cseq ) - httpd_MsgAdd( answer, "Cseq", "%s", psz_cseq ); - httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING ); - httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body ); - httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" ); - if( psz_session ) httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session ); + + httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body ); + httpd_MsgAdd( answer, "Cache-Control", "no-cache" ); + + psz = httpd_MsgGet( query, "Cseq" ); + if( psz != NULL ) + httpd_MsgAdd( answer, "Cseq", "%s", psz ); + psz = httpd_MsgGet( query, "Timestamp" ); + if( psz != NULL ) + httpd_MsgAdd( answer, "Timestamp", "%s", psz ); + return VLC_SUCCESS; } + + +/** Aggregate RTSP callback */ +static int RtspCallback( httpd_callback_sys_t *p_args, + httpd_client_t *cl, + httpd_message_t *answer, + const httpd_message_t *query ) +{ + return RtspHandler( (rtsp_stream_t *)p_args, NULL, cl, answer, query ); +} + + +/** Non-aggregate RTSP callback */ +static int RtspCallbackId( httpd_callback_sys_t *p_args, + httpd_client_t *cl, + httpd_message_t *answer, + const httpd_message_t *query ) +{ + rtsp_stream_id_t *id = (rtsp_stream_id_t *)p_args; + return RtspHandler( id->stream, id, cl, answer, query ); +}