Even then rtp.c is quite big...
SOURCES_stream_out_es = es.c
SOURCES_stream_out_display = display.c
SOURCES_stream_out_gather = gather.c
-SOURCES_stream_out_rtp = rtp.c
+SOURCES_stream_out_rtp = rtp.c rtp.h rtsp.c
SOURCES_stream_out_switcher = switcher.c
SOURCES_stream_out_bridge = bridge.c
SOURCES_stream_out_mosaic_bridge = mosaic_bridge.c
#include <vlc_charset.h>
#include <vlc_strings.h>
+#include "rtp.h"
+
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Send( sout_stream_t *, sout_stream_id_t *,
block_t* );
-/* For unicast/interleaved streaming */
-typedef struct
-{
- char *psz_session;
- int64_t i_last; /* for timeout */
-
- /* is it in "play" state */
- vlc_bool_t b_playing;
-
- /* output (id-access) */
- int i_id;
- sout_stream_id_t **id;
- int i_access;
- sout_access_out_t **access;
-} rtsp_client_t;
-
struct sout_stream_sys_t
{
/* sdp */
rtsp_client_t **rtsp;
};
-typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
- block_t * );
-
-struct sout_stream_id_t
-{
- sout_stream_t *p_stream;
- /* rtp field */
- uint8_t i_payload_type;
- uint16_t i_sequence;
- uint32_t i_timestamp_start;
- uint8_t ssrc[4];
-
- /* for sdp */
- int i_clock_rate;
- char *psz_rtpmap;
- char *psz_fmtp;
- char *psz_destination;
- int i_port;
- int i_cat;
- int i_bitrate;
-
- /* Packetizer specific fields */
- pf_rtp_packetizer_t pf_packetize;
- int i_mtu;
-
- /* for sending the packets */
- sout_access_out_t *p_access;
-
- vlc_mutex_t lock_rtsp;
- int i_rtsp_access;
- sout_access_out_t **rtsp_access;
-
- /* */
- sout_input_t *p_input;
-
- /* RTSP url control */
- httpd_url_t *p_rtsp_url;
-};
-
static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
static void SDPHandleUrl( sout_stream_t *, char * );
static int SapSetup( sout_stream_t *p_stream );
static int FileSetup( sout_stream_t *p_stream );
static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
-static int RtspSetup( sout_stream_t *p_stream, vlc_url_t * );
-
-static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
- httpd_message_t *, httpd_message_t * );
-static int RtspCallbackId( httpd_callback_sys_t *, httpd_client_t *,
- httpd_message_t *, httpd_message_t * );
-
-
-static rtsp_client_t *RtspClientNew( sout_stream_t *, const char *psz_session );
-static rtsp_client_t *RtspClientGet( sout_stream_t *, const char *psz_session );
-static void RtspClientDel( sout_stream_t *, rtsp_client_t * );
/*****************************************************************************
* Open:
a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
a= x-plgroup: (missing)
RTP packets need to get the correct src IP address */
-static char *SDPGenerate( const sout_stream_t *p_stream,
+/*static*/ char *SDPGenerate( const sout_stream_t *p_stream,
const char *psz_destination, vlc_bool_t b_rtsp )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
return VLC_SUCCESS;
}
-/****************************************************************************
- * RTSP:
- ****************************************************************************/
-static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, const char *psz_session )
-{
- rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t ));
-
- 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;
-
- TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
-
- return rtsp;
-}
-static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, const char *psz_session )
-{
- int i;
-
- 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;
-}
-
-static void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp )
-{
- int i;
- TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
-
- 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 );
-}
-
-static int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url )
-{
- sout_stream_sys_t *p_sys = p_stream->p_sys;
-
- 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 )
- {
- return VLC_EGENERIC;
- }
-
- 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 );
-
- return VLC_SUCCESS;
-}
-
-static int RtspCallback( httpd_callback_sys_t *p_args,
- httpd_client_t *cl,
- httpd_message_t *answer, httpd_message_t *query )
-{
- 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;
-
- if( answer == NULL || query == NULL )
- {
- return VLC_SUCCESS;
- }
- //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;
-
- if( httpd_MsgGet( query, "Require" ) != NULL )
- {
- answer->i_status = 551;
- httpd_MsgAdd( query, "Unsupported", "%s",
- httpd_MsgGet( query, "Require" ) );
- }
- 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;
- /* for now only multicast so easy */
- answer->i_status = 200;
-
- 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;
-
- 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;
-
- vlc_mutex_lock( &id->lock_rtsp );
- TAB_APPEND( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
- vlc_mutex_unlock( &id->lock_rtsp );
- }
- vlc_mutex_unlock( &p_sys->lock_es );
- }
- break;
- }
-
- case HTTPD_MSG_PAUSE:
- answer->i_status = 405;
- httpd_MsgAdd( answer, "Allow", "DESCRIBE, PLAY, TEARDOWN" );
- break;
-
- case HTTPD_MSG_TEARDOWN:
- {
- rtsp_client_t *rtsp;
-
- /* for now only multicast so easy again */
- answer->i_status = 200;
-
- psz_session = httpd_MsgGet( query, "Session" );
- rtsp = RtspClientGet( p_stream, psz_session );
- if( rtsp )
- {
- int i_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;
-
- vlc_mutex_lock( &id->lock_rtsp );
- TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
- vlc_mutex_unlock( &id->lock_rtsp );
- }
- vlc_mutex_unlock( &p_sys->lock_es );
-
- RtspClientDel( p_stream, rtsp );
- }
- break;
- }
-
- default:
- return VLC_EGENERIC;
- }
-
- 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;
-}
-
-
-/** Finds the next transport choice */
-static inline const char *transport_next( const char *str )
-{
- /* Looks for comma */
- str = strchr( str, ',' );
- if( str == NULL )
- return NULL; /* No more transport options */
-
- str++; /* skips comma */
- while( strchr( "\r\n\t ", *str ) )
- str++;
-
- return (*str) ? str : NULL;
-}
-
-
-/** Finds the next transport parameter */
-static inline const char *parameter_next( const char *str )
-{
- while( strchr( ",;", *str ) == NULL )
- str++;
-
- return (*str == ';') ? (str + 1) : NULL;
-}
-
-
-static int RtspCallbackId( httpd_callback_sys_t *p_args,
- httpd_client_t *cl,
- httpd_message_t *answer, 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 )
- return VLC_SUCCESS;
- //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;
-
- /* 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() );
- }
-
- if( httpd_MsgGet( query, "Require" ) != NULL )
- {
- answer->i_status = 551;
- httpd_MsgAdd( query, "Unsupported", "%s",
- httpd_MsgGet( query, "Require" ) );
- }
- else
- switch( query->i_type )
- {
- case HTTPD_MSG_SETUP:
- {
- 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;
- unsigned loport = 5004, hiport = 5005; /* from RFC3551 */
-
- /* Check transport protocol. */
- /* Currently, we only support RTP/AVP over UDP */
- if( strncmp( tpt, "RTP/AVP", 7 ) )
- continue;
- tpt += 7;
- if( strncmp( tpt, "/UDP", 4 ) == 0 )
- tpt += 4;
- if( strchr( ";,", *tpt ) == NULL )
- continue;
-
- /* Parse transport options */
- for( const char *opt = parameter_next( tpt );
- opt != NULL;
- opt = parameter_next( opt ) )
- {
- if( strncmp( opt, "multicast", 9 ) == 0)
- b_multicast = VLC_TRUE;
- else
- if( strncmp( opt, "unicast", 7 ) == 0 )
- b_multicast = VLC_FALSE;
- else
- if( sscanf( opt, "client_port=%u-%u", &loport, &hiport ) == 2 )
- ;
- else
- if( strncmp( opt, "mode=", 5 ) == 0 )
- {
- if( strncasecmp( opt + 5, "play", 4 )
- && strncasecmp( opt + 5, "\"PLAY\"", 6 ) )
- {
- /* Not playing?! */
- b_unsupp = VLC_TRUE;
- break;
- }
- }
- else
- {
- /*
- * Every other option is unsupported:
- *
- * "source" and "append" are invalid.
- *
- * 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".
- *
- * "interleaved" and "ssrc" are not implemented.
- */
- b_unsupp = VLC_TRUE;
- break;
- }
- }
-
- if( b_unsupp )
- continue;
-
- if( b_multicast )
- {
- if( id->psz_destination == NULL )
- continue;
-
- answer->i_status = 200;
-
- httpd_MsgAdd( answer, "Transport",
- "RTP/AVP/UDP;destination=%s;port=%d-%d;"
- "ttl=%d;mode=play",
- id->psz_destination, id->i_port, id->i_port+1,
- ( p_sys->i_ttl > 0 ) ? p_sys->i_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;
-
- if( ( hiport - loport ) > 1 )
- continue;
-
- if( psz_session == NULL )
- {
- psz_session = psz_session_init;
- rtsp = RtspClientNew( p_stream, psz_session );
- }
- 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 )
- {
- answer->i_status = 454;
- continue;
- }
- }
-
- if( httpd_ClientIP( cl, ip ) == NULL )
- {
- answer->i_status = 500;
- continue;
- }
-
- if( p_sys->i_ttl )
- 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");
-
- httpd_ServerIP( cl, ip );
-
- if( ( src != NULL ) && strcmp( src, ip ) )
- {
- /* Specify source IP if it is different from the RTSP
- * control connection server address */
- char *ptr = strchr( src, '%' );
- if( ptr != NULL ) *ptr = '\0'; /* remove scope ID */
-
- 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 );
- }
- else
- {
- httpd_MsgAdd( answer, "Transport",
- "RTP/AVP/UDP;unicast;"
- "client_port=%u-%u;server_port=%u-%u;"
- "mode=play",
- loport, hiport, sport, sport + 1 );
- }
-
- answer->i_status = 200;
- free( src );
- }
- break;
- }
- break;
- }
-
- default:
- answer->i_status = 460;
- break;
- }
-
- 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 );
- return VLC_SUCCESS;
-}
-
/****************************************************************************
* rtp_packetize_*:
****************************************************************************/
--- /dev/null
+/*****************************************************************************
+ * rtp.h: rtp stream output module header
+ *****************************************************************************
+ * Copyright (C) 2003-2007 the VideoLAN team
+ * $Id: rtp.c 21407 2007-08-22 20:10:41Z courmisch $
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * Rémi Denis-Courmont
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+typedef struct rtsp_client_t rtsp_client_t;
+
+int RtspSetup( sout_stream_t *p_stream, vlc_url_t * );
+
+int RtspCallbackId( httpd_callback_sys_t *, httpd_client_t *,
+ httpd_message_t *, httpd_message_t * );
+
+void RtspClientDel( sout_stream_t *, rtsp_client_t * );
+
+char *SDPGenerate( const sout_stream_t *p_stream,
+ const char *psz_destination, vlc_bool_t b_rtsp );
+
+typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
+ block_t * );
+
+struct sout_stream_id_t
+{
+ sout_stream_t *p_stream;
+ /* rtp field */
+ uint8_t i_payload_type;
+ uint16_t i_sequence;
+ uint32_t i_timestamp_start;
+ uint8_t ssrc[4];
+
+ /* for sdp */
+ int i_clock_rate;
+ char *psz_rtpmap;
+ char *psz_fmtp;
+ char *psz_destination;
+ int i_port;
+ int i_cat;
+ int i_bitrate;
+
+ /* Packetizer specific fields */
+ pf_rtp_packetizer_t pf_packetize;
+ int i_mtu;
+
+ /* for sending the packets */
+ sout_access_out_t *p_access;
+
+ vlc_mutex_t lock_rtsp;
+ int i_rtsp_access;
+ sout_access_out_t **rtsp_access;
+
+ /* */
+ sout_input_t *p_input;
+
+ /* RTSP url control */
+ httpd_url_t *p_rtsp_url;
+};
--- /dev/null
+/*****************************************************************************
+ * 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 $
+ *
+ * Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+#include <vlc_sout.h>
+#include <vlc_block.h>
+
+#include <vlc_httpd.h>
+#include <vlc_url.h>
+#include <vlc_network.h>
+#include <vlc_charset.h>
+#include <vlc_strings.h>
+
+#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;
+
+ /* output (id-access) */
+ int i_id;
+ sout_stream_id_t **id;
+ int i_access;
+ sout_access_out_t **access;
+};
+
+struct sout_stream_sys_t
+{
+ /* sdp */
+ int64_t i_sdp_id;
+ int i_sdp_version;
+ char *psz_sdp;
+ vlc_mutex_t lock_sdp;
+
+ char *psz_session_name;
+ char *psz_session_description;
+ char *psz_session_url;
+ char *psz_session_email;
+
+ /* */
+ vlc_bool_t b_export_sdp_file;
+ char *psz_sdp_file;
+ /* sap */
+ vlc_bool_t b_export_sap;
+ session_descriptor_t *p_session;
+
+ httpd_host_t *p_httpd_host;
+ httpd_file_t *p_httpd_file;
+
+ httpd_host_t *p_rtsp_host;
+ 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;
+ vlc_bool_t b_latm;
+
+ /* when need to use a private one or when using muxer */
+ int i_payload_type;
+
+ /* in case we do TS/PS over rtp */
+ sout_mux_t *p_mux;
+ sout_access_out_t *p_access;
+ int i_mtu;
+ sout_access_out_t *p_grab;
+ uint16_t i_sequence;
+ uint32_t i_timestamp_start;
+ uint8_t ssrc[4];
+ block_t *packet;
+
+ /* */
+ vlc_mutex_t lock_es;
+ int i_es;
+ sout_stream_id_t **es;
+
+ /* */
+ int i_rtsp;
+ rtsp_client_t **rtsp;
+};
+
+
+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 )
+{
+ sout_stream_sys_t *p_sys = p_stream->p_sys;
+
+ 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 )
+ {
+ return VLC_EGENERIC;
+ }
+
+ 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 );
+
+ return VLC_SUCCESS;
+}
+
+
+static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, const char *psz_session )
+{
+ rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t ));
+
+ 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;
+
+ TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
+
+ return rtsp;
+}
+
+
+static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, const char *psz_session )
+{
+ int i;
+
+ 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;
+}
+
+
+/*static*/ void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp )
+{
+ int i;
+ TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
+
+ 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 );
+}
+
+
+/** Aggregate RTSP callback */
+static int RtspCallback( httpd_callback_sys_t *p_args,
+ httpd_client_t *cl,
+ httpd_message_t *answer, httpd_message_t *query )
+{
+ 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;
+
+ if( answer == NULL || query == NULL )
+ {
+ return VLC_SUCCESS;
+ }
+ //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;
+
+ if( httpd_MsgGet( query, "Require" ) != NULL )
+ {
+ answer->i_status = 551;
+ httpd_MsgAdd( query, "Unsupported", "%s",
+ httpd_MsgGet( query, "Require" ) );
+ }
+ 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;
+ /* for now only multicast so easy */
+ answer->i_status = 200;
+
+ 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;
+
+ 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;
+
+ vlc_mutex_lock( &id->lock_rtsp );
+ TAB_APPEND( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
+ vlc_mutex_unlock( &id->lock_rtsp );
+ }
+ vlc_mutex_unlock( &p_sys->lock_es );
+ }
+ break;
+ }
+
+ case HTTPD_MSG_PAUSE:
+ answer->i_status = 405;
+ httpd_MsgAdd( answer, "Allow", "DESCRIBE, PLAY, TEARDOWN" );
+ break;
+
+ case HTTPD_MSG_TEARDOWN:
+ {
+ rtsp_client_t *rtsp;
+
+ /* for now only multicast so easy again */
+ answer->i_status = 200;
+
+ psz_session = httpd_MsgGet( query, "Session" );
+ rtsp = RtspClientGet( p_stream, psz_session );
+ if( rtsp )
+ {
+ int i_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;
+
+ vlc_mutex_lock( &id->lock_rtsp );
+ TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
+ vlc_mutex_unlock( &id->lock_rtsp );
+ }
+ vlc_mutex_unlock( &p_sys->lock_es );
+
+ RtspClientDel( p_stream, rtsp );
+ }
+ break;
+ }
+
+ default:
+ return VLC_EGENERIC;
+ }
+
+ 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;
+}
+
+
+/** Finds the next transport choice */
+static inline const char *transport_next( const char *str )
+{
+ /* Looks for comma */
+ str = strchr( str, ',' );
+ if( str == NULL )
+ return NULL; /* No more transport options */
+
+ str++; /* skips comma */
+ while( strchr( "\r\n\t ", *str ) )
+ str++;
+
+ return (*str) ? str : NULL;
+}
+
+
+/** Finds the next transport parameter */
+static inline const char *parameter_next( const char *str )
+{
+ while( strchr( ",;", *str ) == NULL )
+ str++;
+
+ return (*str == ';') ? (str + 1) : NULL;
+}
+
+
+/** 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 )
+{
+ 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 )
+ return VLC_SUCCESS;
+ //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;
+
+ /* 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() );
+ }
+
+ if( httpd_MsgGet( query, "Require" ) != NULL )
+ {
+ answer->i_status = 551;
+ httpd_MsgAdd( query, "Unsupported", "%s",
+ httpd_MsgGet( query, "Require" ) );
+ }
+ else
+ switch( query->i_type )
+ {
+ case HTTPD_MSG_SETUP:
+ {
+ 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;
+ unsigned loport = 5004, hiport = 5005; /* from RFC3551 */
+
+ /* Check transport protocol. */
+ /* Currently, we only support RTP/AVP over UDP */
+ if( strncmp( tpt, "RTP/AVP", 7 ) )
+ continue;
+ tpt += 7;
+ if( strncmp( tpt, "/UDP", 4 ) == 0 )
+ tpt += 4;
+ if( strchr( ";,", *tpt ) == NULL )
+ continue;
+
+ /* Parse transport options */
+ for( const char *opt = parameter_next( tpt );
+ opt != NULL;
+ opt = parameter_next( opt ) )
+ {
+ if( strncmp( opt, "multicast", 9 ) == 0)
+ b_multicast = VLC_TRUE;
+ else
+ if( strncmp( opt, "unicast", 7 ) == 0 )
+ b_multicast = VLC_FALSE;
+ else
+ if( sscanf( opt, "client_port=%u-%u", &loport, &hiport ) == 2 )
+ ;
+ else
+ if( strncmp( opt, "mode=", 5 ) == 0 )
+ {
+ if( strncasecmp( opt + 5, "play", 4 )
+ && strncasecmp( opt + 5, "\"PLAY\"", 6 ) )
+ {
+ /* Not playing?! */
+ b_unsupp = VLC_TRUE;
+ break;
+ }
+ }
+ else
+ {
+ /*
+ * Every other option is unsupported:
+ *
+ * "source" and "append" are invalid.
+ *
+ * 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".
+ *
+ * "interleaved" and "ssrc" are not implemented.
+ */
+ b_unsupp = VLC_TRUE;
+ break;
+ }
+ }
+
+ if( b_unsupp )
+ continue;
+
+ if( b_multicast )
+ {
+ if( id->psz_destination == NULL )
+ continue;
+
+ answer->i_status = 200;
+
+ httpd_MsgAdd( answer, "Transport",
+ "RTP/AVP/UDP;destination=%s;port=%d-%d;"
+ "ttl=%d;mode=play",
+ id->psz_destination, id->i_port, id->i_port+1,
+ ( p_sys->i_ttl > 0 ) ? p_sys->i_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;
+
+ if( ( hiport - loport ) > 1 )
+ continue;
+
+ if( psz_session == NULL )
+ {
+ psz_session = psz_session_init;
+ rtsp = RtspClientNew( p_stream, psz_session );
+ }
+ 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 )
+ {
+ answer->i_status = 454;
+ continue;
+ }
+ }
+
+ if( httpd_ClientIP( cl, ip ) == NULL )
+ {
+ answer->i_status = 500;
+ continue;
+ }
+
+ if( p_sys->i_ttl )
+ 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");
+
+ httpd_ServerIP( cl, ip );
+
+ if( ( src != NULL ) && strcmp( src, ip ) )
+ {
+ /* Specify source IP if it is different from the RTSP
+ * control connection server address */
+ char *ptr = strchr( src, '%' );
+ if( ptr != NULL ) *ptr = '\0'; /* remove scope ID */
+
+ 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 );
+ }
+ else
+ {
+ httpd_MsgAdd( answer, "Transport",
+ "RTP/AVP/UDP;unicast;"
+ "client_port=%u-%u;server_port=%u-%u;"
+ "mode=play",
+ loport, hiport, sport, sport + 1 );
+ }
+
+ answer->i_status = 200;
+ free( src );
+ }
+ break;
+ }
+ break;
+ }
+
+ default:
+ answer->i_status = 460;
+ break;
+ }
+
+ 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 );
+ return VLC_SUCCESS;
+}
projects / vlc / commitdiff