X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fstream_out%2Frtp.c;h=56c988c7d88ccd69b96d45e395863e655c590773;hb=552e595131c5f1d66eba8e3c22c2b1c509be5153;hp=17f8785f6f4f6510347d7c46e52c8d3549b20c47;hpb=4db2dc94efb517783fb8e56f54eed282de743e5f;p=vlc diff --git a/modules/stream_out/rtp.c b/modules/stream_out/rtp.c index 17f8785f6f..56c988c7d8 100644 --- a/modules/stream_out/rtp.c +++ b/modules/stream_out/rtp.c @@ -2,6 +2,7 @@ * rtp.c: rtp stream output module ***************************************************************************** * Copyright (C) 2003-2004 the VideoLAN team + * Copyright © 2007 Rémi Denis-Courmont * $Id$ * * Authors: Laurent Aimar @@ -24,12 +25,6 @@ /***************************************************************************** * Preamble *****************************************************************************/ -#include "config.h" -#ifdef HAVE_UNISTD_H -# include -#endif - -#include #include #include @@ -43,12 +38,19 @@ #include "rtp.h" +#ifdef HAVE_UNISTD_H +# include +# include +# include +# include +#endif + +#include + /***************************************************************************** * Module descriptor *****************************************************************************/ -#define MTU_REDUCE 50 - #define DST_TEXT N_("Destination") #define DST_LONGTEXT N_( \ "This is the output URL that will be used." ) @@ -67,10 +69,10 @@ #define NAME_LONGTEXT N_( \ "This is the name of the session that will be announced in the SDP " \ "(Session Descriptor)." ) -#define DESC_TEXT N_("Session description") +#define DESC_TEXT N_("Session descriptipn") #define DESC_LONGTEXT N_( \ - "This allows you to give a broader description of the stream, that will " \ - "be announced in the SDP (Session Descriptor)." ) + "This allows you to give a short description with details about the stream, " \ + "that will be announced in the SDP (Session Descriptor)." ) #define URL_TEXT N_("Session URL") #define URL_LONGTEXT N_( \ "This allows you to give an URL with more details about the stream " \ @@ -78,8 +80,13 @@ "be announced in the SDP (Session Descriptor)." ) #define EMAIL_TEXT N_("Session email") #define EMAIL_LONGTEXT N_( \ - "This allows you to give a contact mail address for the stream, that will " \ - "be announced in the SDP (Session Descriptor)." ) + "This allows you to give a contact mail address for the stream, that will " \ + "be announced in the SDP (Session Descriptor)." ) +#define PHONE_TEXT N_("Session phone number") +#define PHONE_LONGTEXT N_( \ + "This allows you to give a contact telephone number for the stream, that will " \ + "be announced in the SDP (Session Descriptor)." ) + #define PORT_TEXT N_("Port") #define PORT_LONGTEXT N_( \ "This allows you to specify the base port for the RTP streaming." ) @@ -96,6 +103,16 @@ "the multicast packets sent by the stream output (0 = use operating " \ "system built-in default).") +#define DCCP_TEXT N_("DCCP transport") +#define DCCP_LONGTEXT N_( \ + "This enables DCCP instead of UDP as a transport for RTP." ) +#define TCP_TEXT N_("TCP transport") +#define TCP_LONGTEXT N_( \ + "This enables TCP instead of UDP as a transport for RTP." ) +#define UDP_LITE_TEXT N_("UDP-Lite transport") +#define UDP_LITE_LONGTEXT N_( \ + "This enables UDP-Lite instead of UDP as a transport for RTP." ) + #define RFC3016_TEXT N_("MP4A LATM") #define RFC3016_LONGTEXT N_( \ "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." ) @@ -104,6 +121,7 @@ static int Open ( vlc_object_t * ); static void Close( vlc_object_t * ); #define SOUT_CFG_PREFIX "sout-rtp-" +#define MAX_EMPTY_BLOCKS 200 vlc_module_begin(); set_shortname( _("RTP")); @@ -120,7 +138,7 @@ vlc_module_begin(); add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT, MUX_LONGTEXT, VLC_TRUE ); - add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT, + add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT, NAME_LONGTEXT, VLC_TRUE ); add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT, DESC_LONGTEXT, VLC_TRUE ); @@ -128,6 +146,8 @@ vlc_module_begin(); URL_LONGTEXT, VLC_TRUE ); add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT, EMAIL_LONGTEXT, VLC_TRUE ); + add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT, + PHONE_LONGTEXT, VLC_TRUE ); add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT, PORT_LONGTEXT, VLC_TRUE ); @@ -139,6 +159,13 @@ vlc_module_begin(); add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT, TTL_LONGTEXT, VLC_TRUE ); + add_bool( SOUT_CFG_PREFIX "dccp", 0, NULL, + DCCP_TEXT, DCCP_LONGTEXT, VLC_FALSE ); + add_bool( SOUT_CFG_PREFIX "tcp", 0, NULL, + TCP_TEXT, TCP_LONGTEXT, VLC_FALSE ); + add_bool( SOUT_CFG_PREFIX "udplite", 0, NULL, + UDP_LITE_TEXT, UDP_LITE_LONGTEXT, VLC_FALSE ); + add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT, RFC3016_LONGTEXT, VLC_FALSE ); @@ -150,15 +177,22 @@ vlc_module_end(); *****************************************************************************/ static const char *ppsz_sout_options[] = { "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux", - "description", "url","email", "mp4a-latm", NULL + "description", "url", "email", "phone", + "dccp", "tcp", "udplite", + "mp4a-latm", NULL }; static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * ); static int Del ( sout_stream_t *, sout_stream_id_t * ); static int Send( sout_stream_t *, sout_stream_id_t *, block_t* ); +static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * ); +static int MuxDel ( sout_stream_t *, sout_stream_id_t * ); +static int MuxSend( sout_stream_t *, sout_stream_id_t *, + block_t* ); -static int AccessOutGrabberWrite( sout_access_out_t *, block_t * ); +static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout ); +static void ThreadSend( vlc_object_t *p_this ); static void SDPHandleUrl( sout_stream_t *, char * ); @@ -166,6 +200,95 @@ 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 * ); +struct sout_stream_sys_t +{ + /* SDP */ + int64_t i_sdp_id; + int i_sdp_version; + char *psz_sdp; + vlc_mutex_t lock_sdp; + + /* SDP to disk */ + vlc_bool_t b_export_sdp_file; + char *psz_sdp_file; + + /* SDP via SAP */ + vlc_bool_t b_export_sap; + session_descriptor_t *p_session; + + /* SDP via HTTP */ + httpd_host_t *p_httpd_host; + httpd_file_t *p_httpd_file; + + /* RTSP */ + rtsp_stream_t *rtsp; + + /* */ + char *psz_destination; + uint8_t proto; + uint8_t i_ttl; + uint16_t i_port; + uint16_t i_port_audio; + uint16_t i_port_video; + 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_grab; + block_t *packet; + + /* */ + vlc_mutex_t lock_es; + int i_es; + sout_stream_id_t **es; +}; + +typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *, + block_t * ); + +typedef struct rtp_sink_t +{ + int rtp_fd; + rtcp_sender_t *rtcp; +} rtp_sink_t; + +struct sout_stream_id_t +{ + VLC_COMMON_MEMBERS + + sout_stream_t *p_stream; + /* rtp field */ + uint32_t i_timestamp_start; + uint16_t i_sequence; + uint8_t i_payload_type; + uint8_t ssrc[4]; + + /* for sdp */ + char *psz_rtpmap; + char *psz_fmtp; + int i_clock_rate; + int i_port; + int i_cat; + int i_bitrate; + + /* Packetizer specific fields */ + pf_rtp_packetizer_t pf_packetize; + int i_mtu; + + /* Packets sinks */ + vlc_mutex_t lock_sink; + int sinkc; + rtp_sink_t *sinkv; + rtsp_stream_id_t *rtsp_id; + + block_fifo_t *p_fifo; + int64_t i_caching; +}; + + /***************************************************************************** * Open: *****************************************************************************/ @@ -175,7 +298,7 @@ static int Open( vlc_object_t *p_this ) sout_instance_t *p_sout = p_stream->p_sout; sout_stream_sys_t *p_sys = NULL; config_chain_t *p_cfg = NULL; - vlc_value_t val; + char *psz; vlc_bool_t b_rtsp = VLC_FALSE; config_ChainParse( p_stream, SOUT_CFG_PREFIX, @@ -186,10 +309,6 @@ static int Open( vlc_object_t *p_this ) return VLC_ENOMEM; p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" ); - p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" ); - p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" ); - p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" ); - p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" ); p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" ); p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" ); @@ -204,47 +323,50 @@ static int Open( vlc_object_t *p_this ) p_sys->i_port_video = 0; } - if( !p_sys->psz_session_name ) - { - if( p_sys->psz_destination ) - p_sys->psz_session_name = strdup( p_sys->psz_destination ); - else - p_sys->psz_session_name = strdup( "NONE" ); - } - for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next ) { - if( !strcmp( p_cfg->psz_name, "sdp" ) ) + if( !strcmp( p_cfg->psz_name, "sdp" ) + && ( p_cfg->psz_value != NULL ) + && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) ) { - if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) ) - { - b_rtsp = VLC_TRUE; - break; - } + b_rtsp = VLC_TRUE; + break; } } if( !b_rtsp ) { - vlc_value_t val2; - var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 ); - if( !strncasecmp( val2.psz_string, "rtsp", 4 ) ) - b_rtsp = VLC_TRUE; - free( val2.psz_string ); + psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" ); + if( psz != NULL ) + { + if( !strncasecmp( psz, "rtsp:", 5 ) ) + b_rtsp = VLC_TRUE; + free( psz ); + } } - if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' ) + /* Transport protocol */ + p_sys->proto = IPPROTO_UDP; + +#if 0 + if( var_GetBool( p_stream, SOUT_CFG_PREFIX "dccp" ) ) { - if( !b_rtsp ) - { - msg_Err( p_stream, "missing destination and not in rtsp mode" ); - free( p_sys ); - return VLC_EGENERIC; - } - p_sys->psz_destination = NULL; + p_sys->sotype = SOCK_DCCP; + p_sys->proto = 33 /*IPPROTO_DCCP*/; + } + else + if( var_GetBool( p_stream, SOUT_CFG_PREFIX "tcp" ) ) + { + p_sys->sotype = SOCK_STREAM; + p_sys->proto = IPPROTO_TCP; } - else if( p_sys->i_port <= 0 ) + else +#endif + if( var_GetBool( p_stream, SOUT_CFG_PREFIX "udplite" ) ) + p_sys->proto = 136 /*IPPROTO_UDPLITE*/; + + if( ( p_sys->psz_destination == NULL ) && !b_rtsp ) { - msg_Err( p_stream, "invalid port" ); + msg_Err( p_stream, "missing destination and not in RTSP mode" ); free( p_sys ); return VLC_EGENERIC; } @@ -258,17 +380,13 @@ static int Open( vlc_object_t *p_this ) * ttl are set. */ p_sys->i_ttl = config_GetInt( p_stream, "ttl" ); } - if( p_sys->i_ttl > 255 ) - p_sys->i_ttl = 255; - /* must not exceed 999 once formatted */ p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" ); p_sys->i_payload_type = 96; p_sys->i_es = 0; p_sys->es = NULL; - p_sys->i_rtsp = 0; - p_sys->rtsp = NULL; + p_sys->rtsp = NULL; p_sys->psz_sdp = NULL; p_sys->i_sdp_id = mdate(); @@ -281,188 +399,77 @@ static int Open( vlc_object_t *p_this ) p_sys->p_httpd_host = NULL; p_sys->p_httpd_file = NULL; - p_sys->p_rtsp_host = NULL; - p_sys->p_rtsp_url = NULL; - p_sys->psz_rtsp_control = NULL; - p_sys->psz_rtsp_path = NULL; + + p_stream->p_sys = p_sys; vlc_mutex_init( p_stream, &p_sys->lock_sdp ); vlc_mutex_init( p_stream, &p_sys->lock_es ); - p_stream->pf_add = Add; - p_stream->pf_del = Del; - p_stream->pf_send = Send; - - p_stream->p_sys = p_sys; - - var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val ); - if( *val.psz_string ) + psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" ); + if( psz != NULL ) { - sout_access_out_t *p_grab; - const char *psz_rtpmap; - char url[NI_MAXHOST + 8], access[22], psz_ttl[5], ipv; - - if( b_rtsp ) - { - msg_Err( p_stream, "muxing is not supported in RTSP mode" ); - free( p_sys ); - return VLC_EGENERIC; - } - else if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' ) - { - msg_Err( p_stream, "RTP needs a destination when muxing" ); - free( p_sys ); - return VLC_EGENERIC; - } + sout_stream_id_t *id; /* Check muxer type */ - if( !strncasecmp( val.psz_string, "ps", 2 ) - || !strncasecmp( val.psz_string, "mpeg1", 5 ) ) - { - psz_rtpmap = "MP2P/90000"; - } - else if( !strncasecmp( val.psz_string, "ts", 2 ) ) + if( strncasecmp( psz, "ps", 2 ) + && strncasecmp( psz, "mpeg1", 5 ) + && strncasecmp( psz, "ts", 2 ) ) { - psz_rtpmap = "MP2T/90000"; - p_sys->i_payload_type = 33; - } - else - { - msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" ); + msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" ); + free( psz ); + vlc_mutex_destroy( &p_sys->lock_sdp ); + vlc_mutex_destroy( &p_sys->lock_es ); free( p_sys ); return VLC_EGENERIC; } - /* create the access out */ - if( p_sys->i_ttl > 0 ) - { - sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl ); - } - else - { - strcat( access, "udp{raw,rtcp}" ); - } + p_sys->p_grab = GrabberCreate( p_stream ); + p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab ); + free( psz ); - /* FIXME: we should check that url is a numerical address, otherwise - * the SDP will be quite broken (regardless of the IP protocol version) - * Also it might be IPv6 with no ':' if it is a DNS name. - */ - ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4'; - - /* IPv6 needs brackets if not already present */ - if ((ipv == '6') && (p_sys->psz_destination[0] != '[')) - snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination, - p_sys->i_port); - else - snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination, - p_sys->i_port); - - if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) ) + if( p_sys->p_mux == NULL ) { - msg_Err( p_stream, "cannot create the access out for %s://%s", - access, url ); + msg_Err( p_stream, "cannot create muxer" ); + sout_AccessOutDelete( p_sys->p_grab ); + vlc_mutex_destroy( &p_sys->lock_sdp ); + vlc_mutex_destroy( &p_sys->lock_es ); free( p_sys ); return VLC_EGENERIC; } - p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */ - if( p_sys->i_mtu <= 16 + MTU_REDUCE ) - { - /* better than nothing */ - p_sys->i_mtu = 1500; - } - p_sys->i_mtu -= MTU_REDUCE; - - /* the access out grabber TODO export it as sout_AccessOutGrabberNew */ - p_grab = p_sys->p_grab = - vlc_object_create( p_sout, sizeof( sout_access_out_t ) ); - p_grab->p_module = NULL; - p_grab->p_sout = p_sout; - p_grab->psz_access = strdup( "grab" ); - p_grab->p_cfg = NULL; - p_grab->psz_path = strdup( "" ); - p_grab->p_sys = (sout_access_out_sys_t*)p_stream; - p_grab->pf_seek = NULL; - p_grab->pf_write = AccessOutGrabberWrite; - - /* the muxer */ - if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) ) + + id = Add( p_stream, NULL ); + if( id == NULL ) { - msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string ); + sout_MuxDelete( p_sys->p_mux ); sout_AccessOutDelete( p_sys->p_grab ); - sout_AccessOutDelete( p_sys->p_access ); + vlc_mutex_destroy( &p_sys->lock_sdp ); + vlc_mutex_destroy( &p_sys->lock_es ); free( p_sys ); return VLC_EGENERIC; } - /* create the SDP for a muxed stream (only once) */ - /* FIXME http://www.faqs.org/rfcs/rfc4566.html - o= - should be local username (no spaces allowed) - o= time should be hashed with some other value to garantee uniqueness - o= don't use the localhost address. use fully qualified domain name or IP4 address - a= source-filter: we need our source address - a= x-plgroup: (missing) - RTP packets need to get the correct src IP address */ - if( ipv == '4' - && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) ) - { - snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl ); - psz_ttl[sizeof( psz_ttl ) - 1] = '\0'; - } - else - { - psz_ttl[0] = '\0'; - } - - asprintf( &p_sys->psz_sdp, - "v=0\r\n" - /* FIXME: source address not known :( */ - "o=- "I64Fd" %d IN IP%c %s\r\n" - "s=%s\r\n" - "i=%s\r\n" - "u=%s\r\n" - "e=%s\r\n" - "c=IN IP%c %s%s\r\n" - "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */ - "a=tool:"PACKAGE_STRING"\r\n" - "a=recvonly\r\n" - "a=type:broadcast\r\n" - "m=video %d RTP/AVP %d\r\n" - "a=rtpmap:%d %s\r\n", - p_sys->i_sdp_id, p_sys->i_sdp_version, - ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */, - p_sys->psz_session_name, - p_sys->psz_session_description, - p_sys->psz_session_url, - p_sys->psz_session_email, - ipv, p_sys->psz_destination, psz_ttl, - p_sys->i_port, p_sys->i_payload_type, - p_sys->i_payload_type, psz_rtpmap ); - msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp ); - - /* create the rtp context */ - p_sys->ssrc[0] = rand()&0xff; - p_sys->ssrc[1] = rand()&0xff; - p_sys->ssrc[2] = rand()&0xff; - p_sys->ssrc[3] = rand()&0xff; - p_sys->i_sequence = rand()&0xffff; - p_sys->i_timestamp_start = rand()&0xffffffff; p_sys->packet = NULL; + + p_stream->pf_add = MuxAdd; + p_stream->pf_del = MuxDel; + p_stream->pf_send = MuxSend; } else { p_sys->p_mux = NULL; - p_sys->p_access = NULL; p_sys->p_grab = NULL; - } - free( val.psz_string ); + p_stream->pf_add = Add; + p_stream->pf_del = Del; + p_stream->pf_send = Send; + } - var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val ); - if( *val.psz_string ) + psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" ); + if( psz != NULL ) { config_chain_t *p_cfg; - SDPHandleUrl( p_stream, val.psz_string ); + SDPHandleUrl( p_stream, psz ); for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next ) { @@ -472,14 +479,14 @@ static int Open( vlc_object_t *p_this ) continue; /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */ - if( !strcmp( p_cfg->psz_value, val.psz_string ) ) + if( !strcmp( p_cfg->psz_value, psz ) ) continue; SDPHandleUrl( p_stream, p_cfg->psz_value ); } } + free( psz ); } - free( val.psz_string ); /* update p_sout->i_out_pace_nocontrol */ p_stream->p_sout->i_out_pace_nocontrol++; @@ -500,8 +507,10 @@ static void Close( vlc_object_t * p_this ) if( p_sys->p_mux ) { + assert( p_sys->i_es == 1 ); + Del( p_stream, p_sys->es[0] ); + sout_MuxDelete( p_sys->p_mux ); - sout_AccessOutDelete( p_sys->p_access ); sout_AccessOutDelete( p_sys->p_grab ); if( p_sys->packet ) { @@ -514,9 +523,11 @@ static void Close( vlc_object_t * p_this ) } } - RtspUnsetup( p_stream ); + if( p_sys->rtsp != NULL ) + RtspUnsetup( p_sys->rtsp ); vlc_mutex_destroy( &p_sys->lock_sdp ); + vlc_mutex_destroy( &p_sys->lock_es ); if( p_sys->p_httpd_file ) httpd_FileDelete( p_sys->p_httpd_file ); @@ -524,26 +535,7 @@ static void Close( vlc_object_t * p_this ) if( p_sys->p_httpd_host ) httpd_HostDelete( p_sys->p_httpd_host ); - if( p_sys->p_rtsp_url ) - httpd_UrlDelete( p_sys->p_rtsp_url ); - - if( p_sys->p_rtsp_host ) - httpd_HostDelete( p_sys->p_rtsp_host ); - - if( p_sys->psz_session_name ) - free( p_sys->psz_session_name ); - - if( p_sys->psz_session_description ) - free( p_sys->psz_session_description ); - - if( p_sys->psz_session_url ) - free( p_sys->psz_session_url ); - - if( p_sys->psz_session_email ) - free( p_sys->psz_session_email ); - - if( p_sys->psz_sdp ) - free( p_sys->psz_sdp ); + free( p_sys->psz_sdp ); if( p_sys->b_export_sdp_file ) { @@ -552,8 +544,7 @@ static void Close( vlc_object_t * p_this ) #endif free( p_sys->psz_sdp_file ); } - if( p_sys->psz_destination ) - free( p_sys->psz_destination ); + free( p_sys->psz_destination ); free( p_sys ); } @@ -571,29 +562,38 @@ static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url ) if( p_sys->p_httpd_file ) { msg_Err( p_stream, "you can use sdp=http:// only once" ); - return; + goto out; } if( HttpSetup( p_stream, &url ) ) { - msg_Err( p_stream, "cannot export sdp as http" ); + msg_Err( p_stream, "cannot export SDP as HTTP" ); } } else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) ) { - if( p_sys->p_rtsp_url ) + if( p_sys->rtsp != NULL ) { msg_Err( p_stream, "you can use sdp=rtsp:// only once" ); - return; + goto out; + } + + /* FIXME test if destination is multicast or no destination at all */ + p_sys->rtsp = RtspSetup( p_stream, &url ); + if( p_sys->rtsp == NULL ) + { + msg_Err( p_stream, "cannot export SDP as RTSP" ); } - /* FIXME test if destination is multicast or no destination at all FIXME */ - if( RtspSetup( p_stream, &url ) ) + if( p_sys->p_mux != NULL ) { - msg_Err( p_stream, "cannot export sdp as rtsp" ); + sout_stream_id_t *id = p_sys->es[0]; + id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0, + p_sys->psz_destination, p_sys->i_ttl, + id->i_port, id->i_port + 1 ); } } - else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) || + else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) || ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) ) { p_sys->b_export_sap = VLC_TRUE; @@ -604,7 +604,7 @@ static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url ) if( p_sys->b_export_sdp_file ) { msg_Err( p_stream, "you can use sdp=file:// only once" ); - return; + goto out; } p_sys->b_export_sdp_file = VLC_TRUE; psz_url = &psz_url[5]; @@ -617,153 +617,111 @@ static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url ) msg_Warn( p_stream, "unknown protocol for SDP (%s)", url.psz_protocol ); } + +out: vlc_UrlClean( &url ); } /***************************************************************************** * SDPGenerate *****************************************************************************/ - /* FIXME http://www.faqs.org/rfcs/rfc2327.html - All text fields should be UTF-8 encoded. Use global a:charset to announce this. - o= - should be local username (no spaces allowed) - o= time should be hashed with some other value to garantue uniqueness - o= we need IP6 support? - o= don't use the localhost address. use fully qualified domain name or IP4 address - p= international phone number (pass via vars?) - c= IP6 support - a= recvonly (missing) - a= type:broadcast (missing) - 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, - const char *psz_destination, vlc_bool_t b_rtsp ) +/*static*/ +char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url ) { - sout_stream_sys_t *p_sys = p_stream->p_sys; - int i_size; - char *psz_sdp, *p, ipv; + const sout_stream_sys_t *p_sys = p_stream->p_sys; + char *psz_sdp; + struct sockaddr_storage dst; + socklen_t dstlen; int i; - - /* FIXME: breaks IP version check on unknown destination */ - if( psz_destination == NULL ) - psz_destination = "0.0.0.0"; - - i_size = sizeof( "v=0\r\n" ) + - sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 + - sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) + - sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) + - sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) + - sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) + - sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */ - sizeof( "b=RR:0\r\n" ) + - sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) + - sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 + - strlen( psz_destination ) ; - for( i = 0; i < p_sys->i_es; i++ ) - { - sout_stream_id_t *id = p_sys->es[i]; - - i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10; - if ( id->i_bitrate ) - { - i_size += strlen( "b=AS: *\r\n") + 10; - } - if( id->psz_rtpmap ) - { - i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10; - } - if( id->psz_fmtp ) - { - i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10; - } - if( b_rtsp ) - { - i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10; - } + /* + * When we have a fixed destination (typically when we do multicast), + * we need to put the actual port numbers in the SDP. + * When there is no fixed destination, we only support RTSP unicast + * on-demand setup, so we should rather let the clients decide which ports + * to use. + * When there is both a fixed destination and RTSP unicast, we need to + * put port numbers used by the fixed destination, otherwise the SDP would + * become totally incorrect for multicast use. It should be noted that + * port numbers from SDP with RTSP are only "recommendation" from the + * server to the clients (per RFC2326), so only broken clients will fail + * to handle this properly. There is no solution but to use two differents + * output chain with two different RTSP URLs if you need to handle this + * scenario. + */ + int inclport; + + if( p_sys->psz_destination != NULL ) + { + inclport = 1; + + /* Oh boy, this is really ugly! (+ race condition on lock_es) */ + dstlen = sizeof( dst ); + getpeername( p_sys->es[0]->sinkv[0].rtp_fd, (struct sockaddr *)&dst, + &dstlen ); } - if( p_sys->p_mux ) + else { - i_size += strlen( "m=video %d RTP/AVP %d\r\n" ) +10 +10; - } + inclport = 0; - ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4'; - - p = psz_sdp = malloc( i_size ); - p += sprintf( p, "v=0\r\n" ); - p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n", - p_sys->i_sdp_id, p_sys->i_sdp_version, - ipv, ipv == '6' ? "::1" : "127.0.0.1" ); - if( *p_sys->psz_session_name ) - p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name ); - if( *p_sys->psz_session_description ) - p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description ); - if( *p_sys->psz_session_url ) - p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url ); - if( *p_sys->psz_session_email ) - p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email ); - - p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */ - p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" ); - - p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination ); - - if( ( ipv == 4 ) - && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) ) - { - /* Add the deprecated TTL field if it is an IPv4 multicast address */ - p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 ); + /* Dummy destination address for RTSP */ + memset (&dst, 0, sizeof( struct sockaddr_in ) ); + dst.ss_family = AF_INET; +#ifdef HAVE_SA_LEN + dst.ss_len = +#endif + dstlen = sizeof( struct sockaddr_in ); } - p += sprintf( p, "\r\n" ); - p += sprintf( p, "b=RR:0\r\n" ); + psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_stream ), SOUT_CFG_PREFIX, + NULL, 0, (struct sockaddr *)&dst, dstlen ); + if( psz_sdp == NULL ) + return NULL; + + /* TODO: a=source-filter */ + + if( rtsp_url != NULL ) + sdp_AddAttribute ( &psz_sdp, "control", "%s", rtsp_url ); + + /* FIXME: locking?! */ for( i = 0; i < p_sys->i_es; i++ ) { sout_stream_id_t *id = p_sys->es[i]; + const char *mime_major; /* major MIME type */ - if( id->i_cat == AUDIO_ES ) - { - p += sprintf( p, "m=audio %d RTP/AVP %d\r\n", - id->i_port, id->i_payload_type ); - } - else if( id->i_cat == VIDEO_ES ) + switch( id->i_cat ) { - p += sprintf( p, "m=video %d RTP/AVP %d\r\n", - id->i_port, id->i_payload_type ); - } - else - { - continue; - } - if ( id->i_bitrate ) - { - p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate); - } - if( id->psz_rtpmap ) - { - p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type, - id->psz_rtpmap ); - } - if( id->psz_fmtp ) - { - p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type, - id->psz_fmtp ); + case VIDEO_ES: + mime_major = "video"; + break; + case AUDIO_ES: + mime_major = "audio"; + break; + case SPU_ES: + mime_major = "text"; + break; + default: + continue; } - if( b_rtsp ) + + sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", inclport * id->i_port, + id->i_payload_type, VLC_FALSE, id->i_bitrate, + id->psz_rtpmap, id->psz_fmtp); + + if( rtsp_url != NULL ) { - p += sprintf( p, "a=control:/trackID=%d\r\n", i ); + assert( strlen( rtsp_url ) > 0 ); + vlc_bool_t addslash = ( rtsp_url[strlen( rtsp_url ) - 1] != '/' ); + sdp_AddAttribute ( &psz_sdp, "control", + addslash ? "%s/trackID=%u" : "%strackID=%u", + rtsp_url, i ); } } - if( p_sys->p_mux ) - { - p += sprintf( p, "m=video %d RTP/AVP %d\r\n", - p_sys->i_port, p_sys->i_payload_type ); - } return psz_sdp; } /***************************************************************************** - * + * RTP mux *****************************************************************************/ static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * ); static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * ); @@ -776,6 +734,7 @@ static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_ static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * ); static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * ); static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * ); +static int rtp_packetize_t140 ( sout_stream_t *, sout_stream_id_t *, block_t * ); static void sprintf_hexa( char *s, uint8_t *p_data, int i_data ) { @@ -790,50 +749,42 @@ static void sprintf_hexa( char *s, uint8_t *p_data, int i_data ) s[2*i_data] = '\0'; } + +/** Add an ES as a new RTP stream */ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) { - sout_instance_t *p_sout = p_stream->p_sout; + /* NOTE: As a special case, if we use a non-RTP + * mux (TS/PS), then p_fmt is NULL. */ sout_stream_sys_t *p_sys = p_stream->p_sys; sout_stream_id_t *id; - sout_access_out_t *p_access = NULL; - int i_port; + int i_port, cscov = -1; char *psz_sdp; - if( p_sys->p_mux != NULL ) - { - sout_input_t *p_input = NULL; - if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL ) - { - msg_Err( p_stream, "cannot add this stream to the muxer" ); - return NULL; - } - - id = malloc( sizeof( sout_stream_id_t ) ); - memset( id, 0, sizeof( sout_stream_id_t ) ); - id->p_access = NULL; - id->p_input = p_input; - id->pf_packetize= NULL; - id->p_rtsp_url = NULL; - id->i_port = 0; - return id; - } - + id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) ); + if( id == NULL ) + return NULL; /* Choose the port */ i_port = 0; + if( p_fmt == NULL ) + ; + else if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 ) { i_port = p_sys->i_port_audio; p_sys->i_port_audio = 0; } - else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 ) + else + if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 ) { i_port = p_sys->i_port_video; p_sys->i_port_video = 0; } + while( i_port == 0 ) { - if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video ) + if( p_sys->i_port != p_sys->i_port_audio + && p_sys->i_port != p_sys->i_port_video ) { i_port = p_sys->i_port; p_sys->i_port += 2; @@ -842,50 +793,90 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) p_sys->i_port += 2; } - if( p_sys->psz_destination ) + id->p_stream = p_stream; + + id->i_timestamp_start = rand()&0xffffffff; + id->i_sequence = rand()&0xffff; + id->i_payload_type = p_sys->i_payload_type; + id->ssrc[0] = rand()&0xff; + id->ssrc[1] = rand()&0xff; + id->ssrc[2] = rand()&0xff; + id->ssrc[3] = rand()&0xff; + + id->psz_rtpmap = NULL; + id->psz_fmtp = NULL; + id->i_clock_rate = 90000; /* most common case */ + id->i_port = i_port; + if( p_fmt != NULL ) { - char access[22]; - char url[NI_MAXHOST + 8]; + id->i_cat = p_fmt->i_cat; + id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */ + } + else + { + id->i_cat = VIDEO_ES; + id->i_bitrate = 0; + } - /* first try to create the access out */ - if( p_sys->i_ttl > 0 ) - { - snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}", - p_sys->i_ttl ); - access[sizeof( access ) - 1] = '\0'; - } - else - strcpy( access, "udp{raw,rtcp}" ); + id->pf_packetize = NULL; + id->i_mtu = config_GetInt( p_stream, "mtu" ); + if( id->i_mtu <= 12 + 16 ) + id->i_mtu = 576 - 20 - 8; /* pessimistic */ + + msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu ); + + vlc_mutex_init( p_stream, &id->lock_sink ); + id->sinkc = 0; + id->sinkv = NULL; + id->rtsp_id = NULL; + + id->i_caching = + (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching"); + id->p_fifo = block_FifoNew( p_stream ); + + if( vlc_thread_create( id, "RTP send thread", ThreadSend, + VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) ) + { + vlc_mutex_destroy( &id->lock_sink ); + vlc_object_destroy( id ); + return NULL; + } - snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) && - strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d", - p_sys->psz_destination, i_port ); - url[sizeof( url ) - 1] = '\0'; + if( p_sys->psz_destination != NULL ) + { + int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1; + int fd = net_ConnectDgram( p_stream, p_sys->psz_destination, + i_port, ttl, p_sys->proto ); - if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL ) + if( fd == -1 ) { - msg_Err( p_stream, "cannot create the access out for %s://%s", - access, url ); + msg_Err( p_stream, "cannot create RTP socket" ); + vlc_thread_join( id ); + vlc_mutex_destroy( &id->lock_sink ); + vlc_object_destroy( id ); return NULL; } - msg_Dbg( p_stream, "access out %s:%s", access, url ); + rtp_add_sink( id, fd ); } - /* not create the rtp specific stuff */ - id = malloc( sizeof( sout_stream_id_t ) ); - memset( id, 0, sizeof( sout_stream_id_t ) ); - id->p_stream = p_stream; - id->p_access = p_access; - id->p_input = NULL; - id->psz_rtpmap = NULL; - id->psz_fmtp = NULL; - id->psz_destination = p_sys->psz_destination ? strdup( p_sys->psz_destination ) : NULL; - id->i_port = i_port; - id->p_rtsp_url = NULL; - vlc_mutex_init( p_stream, &id->lock_rtsp ); - id->i_rtsp_access = 0; - id->rtsp_access = NULL; + if( p_fmt == NULL ) + { + char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" ); + if( psz == NULL ) /* Uho! */ + ; + else + if( strncmp( psz, "ts", 2 ) == 0 ) + { + id->i_payload_type = 33; + id->psz_rtpmap = strdup( "MP2T/90000" ); + } + else + { + id->psz_rtpmap = strdup( "MP2P/90000" ); + } + } + else switch( p_fmt->i_codec ) { case VLC_FOURCC( 's', '1', '6', 'b' ): @@ -898,51 +889,38 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) { id->i_payload_type = 10; } - else - { - id->i_payload_type = p_sys->i_payload_type++; - } - id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 ); - sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate, - p_fmt->audio.i_channels ); + if( asprintf( &id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate, + p_fmt->audio.i_channels ) == -1 ) + id->psz_rtpmap = NULL; id->i_clock_rate = p_fmt->audio.i_rate; id->pf_packetize = rtp_packetize_l16; break; case VLC_FOURCC( 'u', '8', ' ', ' ' ): - id->i_payload_type = p_sys->i_payload_type++; - id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 ); - sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate, - p_fmt->audio.i_channels ); + if( asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate, + p_fmt->audio.i_channels ) == -1 ) + id->psz_rtpmap = NULL; id->i_clock_rate = p_fmt->audio.i_rate; id->pf_packetize = rtp_packetize_l8; break; case VLC_FOURCC( 'm', 'p', 'g', 'a' ): id->i_payload_type = 14; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "MPA/90000" ); id->pf_packetize = rtp_packetize_mpa; break; case VLC_FOURCC( 'm', 'p', 'g', 'v' ): id->i_payload_type = 32; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "MPV/90000" ); id->pf_packetize = rtp_packetize_mpv; break; case VLC_FOURCC( 'a', '5', '2', ' ' ): - id->i_payload_type = p_sys->i_payload_type++; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "ac3/90000" ); id->pf_packetize = rtp_packetize_ac3; break; case VLC_FOURCC( 'H', '2', '6', '3' ): - id->i_payload_type = p_sys->i_payload_type++; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "H263-1998/90000" ); id->pf_packetize = rtp_packetize_h263; break; case VLC_FOURCC( 'h', '2', '6', '4' ): - id->i_payload_type = p_sys->i_payload_type++; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "H264/90000" ); id->pf_packetize = rtp_packetize_h264; id->psz_fmtp = NULL; @@ -955,7 +933,7 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) char *p_64_pps = NULL; char hexa[6+1]; - while( i_buffer > 4 && + while( i_buffer > 4 && p_buffer[0] == 0 && p_buffer[1] == 0 && p_buffer[2] == 0 && p_buffer[3] == 1 ) { @@ -988,12 +966,14 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) p_buffer += i_size; } /* */ - if( p_64_sps && p_64_pps ) - asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps ); - if( p_64_sps ) - free( p_64_sps ); - if( p_64_pps ) - free( p_64_pps ); + if( p_64_sps && p_64_pps && + ( asprintf( &id->psz_fmtp, + "packetization-mode=1;profile-level-id=%s;" + "sprop-parameter-sets=%s,%s;", hexa, p_64_sps, + p_64_pps ) == -1 ) ) + id->psz_fmtp = NULL; + free( p_64_sps ); + free( p_64_pps ); } if( !id->psz_fmtp ) id->psz_fmtp = strdup( "packetization-mode=1" ); @@ -1003,37 +983,36 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) { char hexa[2*p_fmt->i_extra +1]; - id->i_payload_type = p_sys->i_payload_type++; - id->i_clock_rate = 90000; id->psz_rtpmap = strdup( "MP4V-ES/90000" ); id->pf_packetize = rtp_packetize_split; if( p_fmt->i_extra > 0 ) { - id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra ); sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra ); - sprintf( id->psz_fmtp, - "profile-level-id=3; config=%s;", hexa ); + if( asprintf( &id->psz_fmtp, + "profile-level-id=3; config=%s;", hexa ) == -1 ) + id->psz_fmtp = NULL; } break; } case VLC_FOURCC( 'm', 'p', '4', 'a' ): { - id->i_payload_type = p_sys->i_payload_type++; id->i_clock_rate = p_fmt->audio.i_rate; if(!p_sys->b_latm) { char hexa[2*p_fmt->i_extra +1]; - id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 ); - sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate ); + if( asprintf( &id->psz_rtpmap, "mpeg4-generic/%d", + p_fmt->audio.i_rate ) == -1 ) + id->psz_rtpmap = NULL; id->pf_packetize = rtp_packetize_mp4a; - id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra ); sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra ); - sprintf( id->psz_fmtp, - "streamtype=5; profile-level-id=15; mode=AAC-hbr; " - "config=%s; SizeLength=13;IndexLength=3; " - "IndexDeltaLength=3; Profile=1;", hexa ); + if( asprintf( &id->psz_fmtp, + "streamtype=5; profile-level-id=15; " + "mode=AAC-hbr; config=%s; SizeLength=13; " + "IndexLength=3; IndexDeltaLength=3; Profile=1;", + hexa ) == -1 ) + id->psz_fmtp = NULL; } else { @@ -1055,70 +1034,68 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) config[4]=0x3f; config[5]=0xc0; - asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d", - p_fmt->audio.i_rate, p_fmt->audio.i_channels ); + if( asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d", + p_fmt->audio.i_rate, + p_fmt->audio.i_channels ) == -1) + id->psz_rtpmap = NULL; id->pf_packetize = rtp_packetize_mp4a_latm; sprintf_hexa( hexa, config, 6 ); - asprintf( &id->psz_fmtp, "profile-level-id=15; " - "object=2; cpresent=0; config=%s", hexa ); + if( asprintf( &id->psz_fmtp, "profile-level-id=15; " + "object=2; cpresent=0; config=%s", hexa ) == -1 ) + id->psz_fmtp = NULL; } break; } case VLC_FOURCC( 's', 'a', 'm', 'r' ): - id->i_payload_type = p_sys->i_payload_type++; id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ? "AMR/8000/2" : "AMR/8000" ); id->psz_fmtp = strdup( "octet-align=1" ); id->i_clock_rate = p_fmt->audio.i_rate; id->pf_packetize = rtp_packetize_amr; - break; + break; case VLC_FOURCC( 's', 'a', 'w', 'b' ): - id->i_payload_type = p_sys->i_payload_type++; id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ? "AMR-WB/16000/2" : "AMR-WB/16000" ); id->psz_fmtp = strdup( "octet-align=1" ); id->i_clock_rate = p_fmt->audio.i_rate; id->pf_packetize = rtp_packetize_amr; - break; + break; + case VLC_FOURCC( 't', '1', '4', '0' ): + id->psz_rtpmap = strdup( "t140/1000" ); + id->i_clock_rate = 1000; + id->pf_packetize = rtp_packetize_t140; + break; default: msg_Err( p_stream, "cannot add this stream (unsupported " "codec:%4.4s)", (char*)&p_fmt->i_codec ); - if( p_access ) - { - sout_AccessOutDelete( p_access ); - } - free( id ); + if( id->sinkc > 0 ) + rtp_del_sink( id, id->sinkv[0].rtp_fd ); + vlc_thread_join( id ); + vlc_mutex_destroy( &id->lock_sink ); + vlc_object_destroy( id ); return NULL; } - id->i_cat = p_fmt->i_cat; - id->ssrc[0] = rand()&0xff; - id->ssrc[1] = rand()&0xff; - id->ssrc[2] = rand()&0xff; - id->ssrc[3] = rand()&0xff; - id->i_sequence = rand()&0xffff; - id->i_timestamp_start = rand()&0xffffffff; - id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */ + if( cscov != -1 ) + cscov += 8 /* UDP */ + 12 /* RTP */; + if( id->sinkc > 0 ) + net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 ); - id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */ - if( id->i_mtu <= 16 + MTU_REDUCE ) - { - /* better than nothing */ - id->i_mtu = 1500; - } - id->i_mtu -= MTU_REDUCE; - msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu ); + if( id->i_payload_type == p_sys->i_payload_type ) + p_sys->i_payload_type++; - if( p_sys->p_rtsp_url ) - RtspSetupId( p_stream, id ); + if( p_sys->rtsp != NULL ) + id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es, + p_sys->psz_destination, + p_sys->i_ttl, id->i_port, id->i_port + 1 ); /* Update p_sys context */ vlc_mutex_lock( &p_sys->lock_es ); TAB_APPEND( p_sys->i_es, p_sys->es, id ); vlc_mutex_unlock( &p_sys->lock_es ); - psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE ); + psz_sdp = SDPGenerate( p_stream, NULL ); vlc_mutex_lock( &p_sys->lock_sdp ); free( p_sys->psz_sdp ); @@ -1127,12 +1104,13 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) p_sys->i_sdp_version++; - msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp ); + msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp ); /* Update SDP (sap/file) */ if( p_sys->b_export_sap ) SapSetup( p_stream ); if( p_sys->b_export_sdp_file ) FileSetup( p_stream ); + vlc_object_attach( id, p_stream ); return id; } @@ -1140,6 +1118,9 @@ static int Del( sout_stream_t *p_stream, sout_stream_id_t *id ) { sout_stream_sys_t *p_sys = p_stream->p_sys; + vlc_object_kill( id ); + block_FifoWake( id->p_fifo ); + vlc_mutex_lock( &p_sys->lock_es ); TAB_REMOVE( p_sys->i_es, p_sys->es, id ); vlc_mutex_unlock( &p_sys->lock_es ); @@ -1153,36 +1134,24 @@ static int Del( sout_stream_t *p_stream, sout_stream_id_t *id ) p_sys->i_port_video = id->i_port; } - if( id->p_access ) - { - if( id->psz_rtpmap ) - { - free( id->psz_rtpmap ); - } - if( id->psz_fmtp ) - { - free( id->psz_fmtp ); - } - if( id->psz_destination ) - free( id->psz_destination ); - sout_AccessOutDelete( id->p_access ); - } - else if( id->p_input ) - { - sout_MuxDeleteStream( p_sys->p_mux, id->p_input ); - } - if( id->p_rtsp_url ) - { - httpd_UrlDelete( id->p_rtsp_url ); - } - vlc_mutex_destroy( &id->lock_rtsp ); - if( id->rtsp_access ) free( id->rtsp_access ); + free( id->psz_rtpmap ); + free( id->psz_fmtp ); + + if( id->rtsp_id ) + RtspDelId( p_sys->rtsp, id->rtsp_id ); + if( id->sinkc > 0 ) + rtp_del_sink( id, id->sinkv[0].rtp_fd ); /* sink for explicit dst= */ + + vlc_thread_join( id ); + vlc_mutex_destroy( &id->lock_sink ); + block_FifoRelease( id->p_fifo ); /* Update SDP (sap/file) */ if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream ); if( p_sys->b_export_sdp_file ) FileSetup( p_stream ); - free( id ); + vlc_object_detach( id ); + vlc_object_destroy( id ); return VLC_SUCCESS; } @@ -1191,110 +1160,17 @@ static int Send( sout_stream_t *p_stream, sout_stream_id_t *id, { block_t *p_next; - if( p_stream->p_sys->p_mux ) - { - sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer ); - } - else - { - while( p_buffer ) - { - p_next = p_buffer->p_next; - if( id->pf_packetize( p_stream, id, p_buffer ) ) - { - break; - } - block_Release( p_buffer ); - p_buffer = p_next; - } - } - return VLC_SUCCESS; -} - - -static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream, - block_t *p_buffer ) -{ - sout_stream_sys_t *p_sys = p_stream->p_sys; - - int64_t i_dts = p_buffer->i_dts; - uint32_t i_timestamp = i_dts * 9 / 100; - - uint8_t *p_data = p_buffer->p_buffer; - unsigned int i_data = p_buffer->i_buffer; - unsigned int i_max = p_sys->i_mtu - 12; - - unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max; + assert( p_stream->p_sys->p_mux == NULL ); - while( i_data > 0 ) + while( p_buffer != NULL ) { - unsigned int i_size; - - /* output complete packet */ - if( p_sys->packet && - p_sys->packet->i_buffer + i_data > i_max ) - { - sout_AccessOutWrite( p_sys->p_access, p_sys->packet ); - p_sys->packet = NULL; - } - - if( p_sys->packet == NULL ) - { - /* allocate a new packet */ - p_sys->packet = block_New( p_stream, p_sys->i_mtu ); - p_sys->packet->p_buffer[ 0] = 0x80; - p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type; - p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff; - p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff; - p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff; - p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff; - p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff; - p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff; - p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0]; - p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1]; - p_sys->packet->p_buffer[10] = p_sys->ssrc[2]; - p_sys->packet->p_buffer[11] = p_sys->ssrc[3]; - p_sys->packet->i_buffer = 12; - - p_sys->packet->i_dts = i_dts; - p_sys->packet->i_length = p_buffer->i_length / i_packet; - i_dts += p_sys->packet->i_length; - - p_sys->i_sequence++; - } - - i_size = __MIN( i_data, - (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) ); - - memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer], - p_data, i_size ); - - p_sys->packet->i_buffer += i_size; - p_data += i_size; - i_data -= i_size; - } - - return VLC_SUCCESS; -} - -static int AccessOutGrabberWrite( sout_access_out_t *p_access, - block_t *p_buffer ) -{ - sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys; - - //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer ); - // - while( p_buffer ) - { - block_t *p_next; - - AccessOutGrabberWriteBuffer( p_stream, p_buffer ); - p_next = p_buffer->p_next; + if( id->pf_packetize( p_stream, id, p_buffer ) ) + break; + block_Release( p_buffer ); p_buffer = p_next; } - return VLC_SUCCESS; } @@ -1305,25 +1181,24 @@ static int SapSetup( sout_stream_t *p_stream ) { sout_stream_sys_t *p_sys = p_stream->p_sys; sout_instance_t *p_sout = p_stream->p_sout; - announce_method_t *p_method = sout_SAPMethod(); /* Remove the previous session */ if( p_sys->p_session != NULL) { sout_AnnounceUnRegister( p_sout, p_sys->p_session); - sout_AnnounceSessionDestroy( p_sys->p_session ); p_sys->p_session = NULL; } if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp ) { + announce_method_t *p_method = sout_SAPMethod(); p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX, p_sys->psz_sdp, p_sys->psz_destination, p_method ); + sout_MethodRelease( p_method ); } - sout_MethodRelease( p_method ); return VLC_SUCCESS; } @@ -1337,12 +1212,12 @@ static int FileSetup( sout_stream_t *p_stream ) if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL ) { - msg_Err( p_stream, "cannot open file '%s' (%s)", - p_sys->psz_sdp_file, strerror(errno) ); + msg_Err( p_stream, "cannot open file '%s' (%m)", + p_sys->psz_sdp_file ); return VLC_EGENERIC; } - fprintf( f, "%s", p_sys->psz_sdp ); + fputs( p_sys->psz_sdp, f ); fclose( f ); return VLC_SUCCESS; @@ -1359,7 +1234,8 @@ static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url) { sout_stream_sys_t *p_sys = p_stream->p_sys; - p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 ); + p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, + url->i_port > 0 ? url->i_port : 80 ); if( p_sys->p_httpd_host ) { p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host, @@ -1398,6 +1274,111 @@ static int HttpCallback( httpd_file_sys_t *p_args, return VLC_SUCCESS; } +/**************************************************************************** + * RTP send + ****************************************************************************/ +static void ThreadSend( vlc_object_t *p_this ) +{ + sout_stream_id_t *id = (sout_stream_id_t *)p_this; + unsigned i_caching = id->i_caching; +#ifdef HAVE_TEE + int fd[5] = { -1, -1, -1, -1, -1 }; + + if( pipe( fd ) ) + fd[0] = fd[1] = -1; + else + if( pipe( fd ) ) + fd[2] = fd[3] = -1; + else + fd[4] = open( "/dev/null", O_WRONLY ); +#endif + + while( !id->b_die ) + { + block_t *out = block_FifoGet( id->p_fifo ); + if( out == NULL ) + continue; /* Forced wakeup */ + + mtime_t i_date = out->i_dts + i_caching; + ssize_t len = out->i_buffer; + +#ifdef HAVE_TEE + if( fd[4] != -1 ) + len = write( fd[1], out->p_buffer, len); + if( len == -1 ) + continue; /* Uho - should not happen */ +#endif + mwait( i_date ); + + vlc_mutex_lock( &id->lock_sink ); + for( int i = 0; i < id->sinkc; i++ ) + { + SendRTCP( id->sinkv[i].rtcp, out ); + +#ifdef HAVE_TEE + tee( fd[0], fd[3], len, 0 ); + if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len, + SPLICE_F_NONBLOCK ) >= 0 ) + continue; + + /* splice failed */ + splice( fd[2], NULL, fd[4], NULL, len, 0 ); +#endif + send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ); + } + vlc_mutex_unlock( &id->lock_sink ); + + block_Release( out ); +#ifdef HAVE_TEE + splice( fd[0], NULL, fd[4], NULL, len, 0 ); +#endif + } + +#ifdef HAVE_TEE + for( unsigned i = 0; i < 5; i++ ) + close( fd[i] ); +#endif +} + +static inline void rtp_packetize_send( sout_stream_id_t *id, block_t *out ) +{ + block_FifoPut( id->p_fifo, out ); +} + +int rtp_add_sink( sout_stream_id_t *id, int fd ) +{ + rtp_sink_t sink = { fd, NULL }; + sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP ); + if( sink.rtcp == NULL ) + msg_Err( id, "RTCP failed!" ); + + vlc_mutex_lock( &id->lock_sink ); + INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink ); + vlc_mutex_unlock( &id->lock_sink ); + return VLC_SUCCESS; +} + +void rtp_del_sink( sout_stream_id_t *id, int fd ) +{ + rtp_sink_t sink = { fd, NULL }; + + /* NOTE: must be safe to use if fd is not included */ + vlc_mutex_lock( &id->lock_sink ); + for( int i = 0; i < id->sinkc; i++ ) + { + if (id->sinkv[i].rtp_fd == fd) + { + sink = id->sinkv[i]; + REMOVE_ELEM( id->sinkv, id->sinkc, i ); + break; + } + } + vlc_mutex_unlock( &id->lock_sink ); + + CloseRTCP( sink.rtcp ); + net_Close( sink.rtp_fd ); +} + /**************************************************************************** * rtp_packetize_*: ****************************************************************************/ @@ -1415,49 +1396,12 @@ static void rtp_packetize_common( sout_stream_id_t *id, block_t *out, out->p_buffer[6] = ( i_timestamp >> 8 )&0xff; out->p_buffer[7] = ( i_timestamp )&0xff; - out->p_buffer[ 8] = id->ssrc[0]; - out->p_buffer[ 9] = id->ssrc[1]; - out->p_buffer[10] = id->ssrc[2]; - out->p_buffer[11] = id->ssrc[3]; + memcpy( out->p_buffer + 8, id->ssrc, 4 ); out->i_buffer = 12; id->i_sequence++; } -static void rtp_packetize_send( sout_stream_id_t *id, block_t *out ) -{ - int i; - vlc_mutex_lock( &id->lock_rtsp ); - for( i = 0; i < id->i_rtsp_access; i++ ) - { - sout_AccessOutWrite( id->rtsp_access[i], block_Duplicate( out ) ); - } - vlc_mutex_unlock( &id->lock_rtsp ); - - if( id->p_access ) - { - sout_AccessOutWrite( id->p_access, out ); - } - else - { - block_Release( out ); - } -} - -int rtp_add_sink( sout_stream_id_t *id, sout_access_out_t *access ) -{ - vlc_mutex_lock( &id->lock_rtsp ); - TAB_APPEND( id->i_rtsp_access, id->rtsp_access, access ); - vlc_mutex_unlock( &id->lock_rtsp ); -} - -void rtp_del_sink( sout_stream_id_t *id, sout_access_out_t *access ) -{ - vlc_mutex_lock( &id->lock_rtsp ); - TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, access ); - vlc_mutex_unlock( &id->lock_rtsp ); -} - static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id, block_t *in ) { @@ -1791,6 +1735,7 @@ static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id, return VLC_SUCCESS; } + static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id, block_t *in ) { @@ -1898,8 +1843,10 @@ static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id, } /* rfc3984 */ -static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id, - const uint8_t *p_data, int i_data, int64_t i_pts, int64_t i_dts, vlc_bool_t b_last, int64_t i_length ) +static int +rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id, + const uint8_t *p_data, int i_data, int64_t i_pts, + int64_t i_dts, vlc_bool_t b_last, int64_t i_length ) { const int i_max = id->i_mtu - 12; /* payload max in one packet */ int i_nal_hdr; @@ -1910,12 +1857,6 @@ static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id i_nal_hdr = p_data[3]; i_nal_type = i_nal_hdr&0x1f; - if( i_nal_type == 7 || i_nal_type == 8 ) - { - /* XXX Why do you want to remove them ? It will break streaming with - * SPS/PPS change (broadcast) ? */ - return VLC_SUCCESS; - } /* Skip start code */ p_data += 3; @@ -2000,7 +1941,7 @@ static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id, i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0); i_skip = i_offset; break; - } + } } /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */ rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size, @@ -2051,3 +1992,183 @@ static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id, return VLC_SUCCESS; } + +static int rtp_packetize_t140( sout_stream_t *p_stream, sout_stream_id_t *id, + block_t *in ) +{ + const size_t i_max = id->i_mtu - 12; + const uint8_t *p_data = in->p_buffer; + size_t i_data = in->i_buffer; + + for( unsigned i_packet = 0; i_data > 0; i_packet++ ) + { + size_t i_payload = i_data; + + /* Make sure we stop on an UTF-8 character boundary + * (assuming the input is valid UTF-8) */ + if( i_data > i_max ) + { + i_payload = i_max; + + while( ( p_data[i_payload] & 0xC0 ) == 0x80 ) + { + if( i_payload == 0 ) + return VLC_SUCCESS; /* fishy input! */ + + i_payload--; + } + } + + block_t *out = block_New( p_stream, 12 + i_payload ); + if( out == NULL ) + return VLC_SUCCESS; + + rtp_packetize_common( id, out, 0, in->i_pts + i_packet ); + memcpy( out->p_buffer + 12, p_data, i_payload ); + + out->i_buffer = 12 + i_payload; + out->i_dts = out->i_pts; + out->i_length = 0; + + rtp_packetize_send( id, out ); + + p_data += i_payload; + i_data -= i_payload; + } + + return VLC_SUCCESS; +} + +/***************************************************************************** + * Non-RTP mux + *****************************************************************************/ + +/** Add an ES to a non-RTP muxed stream */ +static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt ) +{ + sout_input_t *p_input; + sout_mux_t *p_mux = p_stream->p_sys->p_mux; + assert( p_mux != NULL ); + + p_input = sout_MuxAddStream( p_mux, p_fmt ); + if( p_input == NULL ) + { + msg_Err( p_stream, "cannot add this stream to the muxer" ); + return NULL; + } + + return (sout_stream_id_t *)p_input; +} + + +static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id, + block_t *p_buffer ) +{ + sout_mux_t *p_mux = p_stream->p_sys->p_mux; + assert( p_mux != NULL ); + + sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer ); + return VLC_SUCCESS; +} + + +/** Remove an ES from a non-RTP muxed stream */ +static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id ) +{ + sout_mux_t *p_mux = p_stream->p_sys->p_mux; + assert( p_mux != NULL ); + + sout_MuxDeleteStream( p_mux, (sout_input_t *)id ); + return VLC_SUCCESS; +} + + +static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream, + const block_t *p_buffer ) +{ + sout_stream_sys_t *p_sys = p_stream->p_sys; + sout_stream_id_t *id = p_sys->es[0]; + + int64_t i_dts = p_buffer->i_dts; + + uint8_t *p_data = p_buffer->p_buffer; + unsigned int i_data = p_buffer->i_buffer; + unsigned int i_max = id->i_mtu - 12; + + unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max; + + while( i_data > 0 ) + { + unsigned int i_size; + + /* output complete packet */ + if( p_sys->packet && + p_sys->packet->i_buffer + i_data > i_max ) + { + rtp_packetize_send( id, p_sys->packet ); + p_sys->packet = NULL; + } + + if( p_sys->packet == NULL ) + { + /* allocate a new packet */ + p_sys->packet = block_New( p_stream, id->i_mtu ); + rtp_packetize_common( id, p_sys->packet, 1, i_dts ); + p_sys->packet->i_dts = i_dts; + p_sys->packet->i_length = p_buffer->i_length / i_packet; + i_dts += p_sys->packet->i_length; + } + + i_size = __MIN( i_data, + (unsigned)(id->i_mtu - p_sys->packet->i_buffer) ); + + memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer], + p_data, i_size ); + + p_sys->packet->i_buffer += i_size; + p_data += i_size; + i_data -= i_size; + } + + return VLC_SUCCESS; +} + + +static int AccessOutGrabberWrite( sout_access_out_t *p_access, + block_t *p_buffer ) +{ + sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys; + + while( p_buffer ) + { + block_t *p_next; + + AccessOutGrabberWriteBuffer( p_stream, p_buffer ); + + p_next = p_buffer->p_next; + block_Release( p_buffer ); + p_buffer = p_next; + } + + return VLC_SUCCESS; +} + + +static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream ) +{ + sout_access_out_t *p_grab; + + p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) ); + if( p_grab == NULL ) + return NULL; + + p_grab->p_module = NULL; + p_grab->p_sout = p_stream->p_sout; + p_grab->psz_access = strdup( "grab" ); + p_grab->p_cfg = NULL; + p_grab->psz_path = strdup( "" ); + p_grab->p_sys = (sout_access_out_sys_t *)p_stream; + p_grab->pf_seek = NULL; + p_grab->pf_write = AccessOutGrabberWrite; + return p_grab; +}