X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fstream_out%2Frtp.c;h=c496ee34be6a96527b94e517f7bdfac9096fc208;hb=d76709e45d961e180791c799fe8daef0378330ad;hp=3739bdabe99be71aeeaa845e0a8ee23a9091f796;hpb=b33adb77a787df72b17bfea5717389838fbffbfe;p=vlc diff --git a/modules/stream_out/rtp.c b/modules/stream_out/rtp.c index 3739bdabe9..c496ee34be 100644 --- a/modules/stream_out/rtp.c +++ b/modules/stream_out/rtp.c @@ -2,7 +2,7 @@ * rtp.c: rtp stream output module ***************************************************************************** * Copyright (C) 2003-2004 the VideoLAN team - * $Id$ + * Copyright © 2007-2008 Rémi Denis-Courmont * * Authors: Laurent Aimar * @@ -24,16 +24,13 @@ /***************************************************************************** * Preamble *****************************************************************************/ -#include "config.h" -#include -#include -#ifdef HAVE_UNISTD_H -# include -#endif -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif -#include +#include +#include #include #include @@ -42,15 +39,37 @@ #include #include #include +#include +#include + +#include "rtp.h" + +#ifdef HAVE_UNISTD_H +# include +# include +# include +# include +#endif +#ifdef HAVE_LINUX_DCCP_H +# include +#endif +#ifndef IPPROTO_DCCP +# define IPPROTO_DCCP 33 +#endif +#ifndef IPPROTO_UDPLITE +# define IPPROTO_UDPLITE 136 +#endif + +#include + +#include /***************************************************************************** * Module descriptor *****************************************************************************/ -#define MTU_REDUCE 50 - -#define DST_TEXT N_("Destination") -#define DST_LONGTEXT N_( \ +#define DEST_TEXT N_("Destination") +#define DEST_LONGTEXT N_( \ "This is the output URL that will be used." ) #define SDP_TEXT N_("SDP") #define SDP_LONGTEXT N_( \ @@ -58,6 +77,8 @@ "session will be made available. You must use an url: http://location to " \ "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \ "for the SDP to be announced via SAP." ) +#define SAP_TEXT N_("SAP announcing") +#define SAP_LONGTEXT N_("Announce this session with SAP.") #define MUX_TEXT N_("Muxer") #define MUX_LONGTEXT N_( \ "This allows you to specify the muxer used for the streaming output. " \ @@ -69,8 +90,8 @@ "(Session Descriptor)." ) #define DESC_TEXT N_("Session description") #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 +99,13 @@ "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." ) @@ -93,9 +119,35 @@ #define TTL_TEXT N_("Hop limit (TTL)") #define TTL_LONGTEXT N_( \ "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \ - "the multicast packets sent by the stream output (0 = use operating " \ + "the multicast packets sent by the stream output (-1 = use operating " \ "system built-in default).") +#define RTCP_MUX_TEXT N_("RTP/RTCP multiplexing") +#define RTCP_MUX_LONGTEXT N_( \ + "This sends and receives RTCP packet multiplexed over the same port " \ + "as RTP packets." ) + +#define PROTO_TEXT N_("Transport protocol") +#define PROTO_LONGTEXT N_( \ + "This selects which transport protocol to use for RTP." ) + +#define SRTP_KEY_TEXT N_("SRTP key (hexadecimal)") +#define SRTP_KEY_LONGTEXT N_( \ + "RTP packets will be integrity-protected and ciphered "\ + "with this Secure RTP master shared secret key.") + +#define SRTP_SALT_TEXT N_("SRTP salt (hexadecimal)") +#define SRTP_SALT_LONGTEXT N_( \ + "Secure RTP requires a (non-secret) master salt value.") + +static const char *const ppsz_protos[] = { + "dccp", "sctp", "tcp", "udp", "udplite", +}; + +static const char *const ppsz_protocols[] = { + "DCCP", "SCTP", "TCP", "UDP", "UDP-Lite", +}; + #define RFC3016_TEXT N_("MP4A LATM") #define RFC3016_LONGTEXT N_( \ "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." ) @@ -104,193 +156,175 @@ static int Open ( vlc_object_t * ); static void Close( vlc_object_t * ); #define SOUT_CFG_PREFIX "sout-rtp-" - -vlc_module_begin(); - set_shortname( _("RTP")); - set_description( _("RTP stream output") ); - set_capability( "sout stream", 0 ); - add_shortcut( "rtp" ); - set_category( CAT_SOUT ); - set_subcategory( SUBCAT_SOUT_STREAM ); - - add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT, - DST_LONGTEXT, VLC_TRUE ); +#define MAX_EMPTY_BLOCKS 200 + +vlc_module_begin () + set_shortname( N_("RTP")) + set_description( N_("RTP stream output") ) + set_capability( "sout stream", 0 ) + add_shortcut( "rtp" ) + set_category( CAT_SOUT ) + set_subcategory( SUBCAT_SOUT_STREAM ) + + add_string( SOUT_CFG_PREFIX "dst", "", NULL, DEST_TEXT, + DEST_LONGTEXT, true ) add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT, - SDP_LONGTEXT, VLC_TRUE ); + SDP_LONGTEXT, true ) add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT, - MUX_LONGTEXT, VLC_TRUE ); + MUX_LONGTEXT, true ) + add_bool( SOUT_CFG_PREFIX "sap", false, NULL, SAP_TEXT, SAP_LONGTEXT, + true ) - add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT, - NAME_LONGTEXT, VLC_TRUE ); + add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT, + NAME_LONGTEXT, true ) add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT, - DESC_LONGTEXT, VLC_TRUE ); + DESC_LONGTEXT, true ) add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT, - URL_LONGTEXT, VLC_TRUE ); + URL_LONGTEXT, true ) add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT, - EMAIL_LONGTEXT, VLC_TRUE ); - - add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT, - PORT_LONGTEXT, VLC_TRUE ); - add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT, - PORT_AUDIO_LONGTEXT, VLC_TRUE ); - add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT, - PORT_VIDEO_LONGTEXT, VLC_TRUE ); - - add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT, - TTL_LONGTEXT, VLC_TRUE ); + EMAIL_LONGTEXT, true ) + add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT, + PHONE_LONGTEXT, true ) + + add_string( SOUT_CFG_PREFIX "proto", "udp", NULL, PROTO_TEXT, + PROTO_LONGTEXT, false ) + change_string_list( ppsz_protos, ppsz_protocols, NULL ) + add_integer( SOUT_CFG_PREFIX "port", 5004, NULL, PORT_TEXT, + PORT_LONGTEXT, true ) + add_integer( SOUT_CFG_PREFIX "port-audio", 0, NULL, PORT_AUDIO_TEXT, + PORT_AUDIO_LONGTEXT, true ) + add_integer( SOUT_CFG_PREFIX "port-video", 0, NULL, PORT_VIDEO_TEXT, + PORT_VIDEO_LONGTEXT, true ) + + add_integer( SOUT_CFG_PREFIX "ttl", -1, NULL, TTL_TEXT, + TTL_LONGTEXT, true ) + add_bool( SOUT_CFG_PREFIX "rtcp-mux", false, NULL, + RTCP_MUX_TEXT, RTCP_MUX_LONGTEXT, false ) + + add_string( SOUT_CFG_PREFIX "key", "", NULL, + SRTP_KEY_TEXT, SRTP_KEY_LONGTEXT, false ) + add_string( SOUT_CFG_PREFIX "salt", "", NULL, + SRTP_SALT_TEXT, SRTP_SALT_LONGTEXT, false ) add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT, - RFC3016_LONGTEXT, VLC_FALSE ); + RFC3016_LONGTEXT, false ) - set_callbacks( Open, Close ); -vlc_module_end(); + set_callbacks( Open, Close ) +vlc_module_end () /***************************************************************************** * Exported prototypes *****************************************************************************/ -static const char *ppsz_sout_options[] = { +static const char *const ppsz_sout_options[] = { "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux", - "description", "url","email", "mp4a-latm", NULL + "sap", "description", "url", "email", "phone", + "proto", "rtcp-mux", "key", "salt", + "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* ); -/* For unicast/interleaved streaming */ -typedef struct -{ - char *psz_session; - int64_t i_last; /* for timeout */ +static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout ); +static void* ThreadSend( vlc_object_t *p_this ); - /* is it in "play" state */ - vlc_bool_t b_playing; +static void SDPHandleUrl( sout_stream_t *, const char * ); - /* output (id-access) */ - int i_id; - sout_stream_id_t **id; - int i_access; - sout_access_out_t **access; -} rtsp_client_t; +static int SapSetup( sout_stream_t *p_stream ); +static int FileSetup( sout_stream_t *p_stream ); +static int HttpSetup( sout_stream_t *p_stream, const vlc_url_t * ); struct sout_stream_sys_t { - /* sdp */ - int64_t i_sdp_id; - int i_sdp_version; + /* SDP */ 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; + /* SDP to disk */ char *psz_sdp_file; - /* sap */ - vlc_bool_t b_export_sap; + + /* SDP via SAP */ + bool b_export_sap; session_descriptor_t *p_session; + /* SDP via HTTP */ 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; + /* RTSP */ + rtsp_stream_t *rtsp; /* */ - 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; + char *psz_destination; + uint32_t payload_bitmap; + uint16_t i_port; + uint16_t i_port_audio; + uint16_t i_port_video; + uint8_t proto; + bool rtcp_mux; + int i_ttl:9; + bool b_latm; /* 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; }; -typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *, - block_t * ); +typedef int (*pf_rtp_packetizer_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 */ - uint8_t i_payload_type; uint16_t i_sequence; - uint32_t i_timestamp_start; + uint8_t i_payload_type; uint8_t ssrc[4]; /* for sdp */ - int i_clock_rate; - char *psz_rtpmap; + const char *psz_enc; char *psz_fmtp; - char *psz_destination; - int i_port; - int i_cat; - int i_bitrate; + int i_clock_rate; + int i_port; + int i_cat; + int i_channels; + int i_bitrate; /* Packetizer specific fields */ + int i_mtu; + srtp_session_t *srtp; 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; + /* Packets sinks */ + vlc_mutex_t lock_sink; + int sinkc; + rtp_sink_t *sinkv; + rtsp_stream_id_t *rtsp_id; + int *listen_fd; - /* */ - sout_input_t *p_input; - - /* RTSP url control */ - httpd_url_t *p_rtsp_url; + block_fifo_t *p_fifo; + int64_t i_caching; }; -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: *****************************************************************************/ @@ -300,299 +334,197 @@ 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; - vlc_bool_t b_rtsp = VLC_FALSE; + char *psz; + bool b_rtsp = false; config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options, p_stream->p_cfg ); p_sys = malloc( sizeof( sout_stream_sys_t ) ); + if( p_sys == NULL ) + return VLC_ENOMEM; - p_sys->psz_destination = var_GetString( p_stream, SOUT_CFG_PREFIX "dst" ); - if( *p_sys->psz_destination == '\0' ) - { - free( p_sys->psz_destination ); - p_sys->psz_destination = NULL; - } - - 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->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" ); 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" ); p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" ); + p_sys->rtcp_mux = var_GetBool( p_stream, SOUT_CFG_PREFIX "rtcp-mux" ); - p_sys->psz_sdp_file = NULL; - - if( p_sys->i_port_audio == p_sys->i_port_video ) - { - msg_Err( p_stream, "audio and video port cannot be the same" ); - p_sys->i_port_audio = 0; - p_sys->i_port_video = 0; - } - - if( !p_sys->psz_session_name ) + if( p_sys->i_port_audio && p_sys->i_port_video == p_sys->i_port_audio ) { - if( p_sys->psz_destination ) - p_sys->psz_session_name = strdup( p_sys->psz_destination ); - else - p_sys->psz_session_name = strdup( "NONE" ); + msg_Err( p_stream, "audio and video RTP port must be distinct" ); + free( p_sys->psz_destination ); + free( p_sys ); + return VLC_EGENERIC; } 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 = 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 = true; + free( psz ); + } } - if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' ) + /* Transport protocol */ + p_sys->proto = IPPROTO_UDP; + psz = var_GetNonEmptyString (p_stream, SOUT_CFG_PREFIX"proto"); + + if ((psz == NULL) || !strcasecmp (psz, "udp")) + (void)0; /* default */ + else + if (!strcasecmp (psz, "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->proto = IPPROTO_DCCP; + p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */ + } +#if 0 + else + if (!strcasecmp (psz, "sctp")) + { + p_sys->proto = IPPROTO_TCP; + p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */ + } +#endif +#if 0 + else + if (!strcasecmp (psz, "tcp")) + { + p_sys->proto = IPPROTO_TCP; + p_sys->rtcp_mux = true; /* Force RTP/RTCP mux */ } - else if( p_sys->i_port <= 0 ) +#endif + else + if (!strcasecmp (psz, "udplite") || !strcasecmp (psz, "udp-lite")) + p_sys->proto = IPPROTO_UDPLITE; + else + msg_Warn (p_this, "unknown or unsupported transport protocol \"%s\"", + psz); + free (psz); + var_Create (p_this, "dccp-service", VLC_VAR_STRING); + + 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; } - var_Get( p_stream, SOUT_CFG_PREFIX "ttl", &val ); - if( val.i_int == 0 ) + p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" ); + if( p_sys->i_ttl == -1 ) { /* Normally, we should let the default hop limit up to the core, * but we have to know it to build our SDP properly, which is why * we ask the core. FIXME: broken when neither sout-rtp-ttl nor * ttl are set. */ - val.i_int = config_GetInt( p_stream, "ttl" ); + p_sys->i_ttl = config_GetInt( p_stream, "ttl" ); } - if( val.i_int > 255 ) val.i_int = 255; - /* must not exceed 999 once formatted */ - - if( val.i_int < 0 ) - msg_Warn( p_stream, "illegal TTL %d, the SDP advertised value will be faked", val.i_int ); - p_sys->i_ttl = val.i_int; - var_Get( p_stream, SOUT_CFG_PREFIX "mp4a-latm", &val ); - p_sys->b_latm = val.b_bool; + p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" ); - p_sys->i_payload_type = 96; + p_sys->payload_bitmap = 0; 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(); - p_sys->i_sdp_version = 1; - p_sys->psz_sdp = NULL; - - p_sys->b_export_sap = VLC_FALSE; - p_sys->b_export_sdp_file = VLC_FALSE; + p_sys->b_export_sap = false; p_sys->p_session = NULL; + p_sys->psz_sdp_file = NULL; 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; - - 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 ) - { - sout_access_out_t *p_grab; - const char *psz_rtpmap; - char url[NI_MAXHOST + 8], access[17], psz_ttl[5], ipv; + vlc_mutex_init( &p_sys->lock_sdp ); + vlc_mutex_init( &p_sys->lock_es ); - 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; - } + psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" ); + if( psz != NULL ) + { + 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 ) ) - { - psz_rtpmap = "MP2T/90000"; - p_sys->i_payload_type = 33; - } - else + if( strncasecmp( psz, "ps", 2 ) + && strncasecmp( psz, "mpeg1", 5 ) + && strncasecmp( psz, "ts", 2 ) ) { - 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->psz_destination ); free( p_sys ); return VLC_EGENERIC; } - /* create the access out */ - if( p_sys->i_ttl > 0 ) - { - sprintf( access, "udp{raw,ttl=%d}", p_sys->i_ttl ); - } - else - { - sprintf( access, "udp{raw}" ); - } + p_sys->p_grab = GrabberCreate( p_stream ); + p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab ); + free( psz ); - /* IPv6 needs brackets if not already present */ - snprintf( url, sizeof( url ), - ( ( p_sys->psz_destination[0] != '[' ) - && ( strchr( p_sys->psz_destination, ':' ) != NULL ) ) - ? "[%s]:%d" : "%s:%d", p_sys->psz_destination, - p_sys->i_port ); - url[sizeof( url ) - 1] = '\0'; - /* 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'; - - 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->psz_destination ); 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->psz_destination ); 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; + + p_stream->pf_add = Add; + p_stream->pf_del = Del; + p_stream->pf_send = Send; } - free( val.psz_string ); + if( var_GetBool( p_stream, SOUT_CFG_PREFIX"sap" ) ) + SDPHandleUrl( p_stream, "sap" ); - 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 ) { @@ -601,14 +533,15 @@ static int Open( vlc_object_t *p_this ) if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' ) continue; - if( !strcmp( p_cfg->psz_value, val.psz_string ) ) /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */ + /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */ + 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++; @@ -629,24 +562,28 @@ static void Close( vlc_object_t * p_this ) if( p_sys->p_mux ) { + assert( p_sys->i_es == 1 ); + sout_MuxDelete( p_sys->p_mux ); - sout_AccessOutDelete( p_sys->p_access ); + Del( p_stream, p_sys->es[0] ); sout_AccessOutDelete( p_sys->p_grab ); + if( p_sys->packet ) { block_Release( p_sys->packet ); } if( p_sys->b_export_sap ) - { + { p_sys->p_mux = NULL; SapSetup( p_stream ); } } - while( p_sys->i_rtsp > 0 ) - RtspClientDel( p_stream, p_sys->rtsp[0] ); + 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 ); @@ -654,43 +591,23 @@ 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 ) + if( p_sys->psz_sdp_file != NULL ) { #ifdef HAVE_UNISTD_H unlink( p_sys->psz_sdp_file ); #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 ); } /***************************************************************************** * SDPHandleUrl: *****************************************************************************/ -static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url ) +static void SDPHandleUrl( sout_stream_t *p_stream, const char *psz_url ) { sout_stream_sys_t *p_sys = p_stream->p_sys; vlc_url_t url; @@ -701,211 +618,204 @@ 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 FIXME */ - if( RtspSetup( p_stream, &url ) ) + /* 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" ); + else + 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, GetDWBE( id->ssrc ), + 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; + p_sys->b_export_sap = true; SapSetup( p_stream ); } else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) ) { - if( p_sys->b_export_sdp_file ) + if( p_sys->psz_sdp_file != NULL ) { 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]; if( psz_url[0] == '/' && psz_url[1] == '/' ) psz_url += 2; p_sys->psz_sdp_file = strdup( psz_url ); + if( p_sys->psz_sdp_file == NULL ) + goto out; + decode_URI( p_sys->psz_sdp_file ); /* FIXME? */ + FileSetup( p_stream ); } else { 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 ); + if( p_sys->es[0]->listen_fd != NULL ) + getsockname( p_sys->es[0]->listen_fd[0], + (struct sockaddr *)&dst, &dstlen ); + else + 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" ); + 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( p_sys->rtcp_mux ) + sdp_AddAttribute( &psz_sdp, "rtcp-mux", NULL ); + + 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 */ + const char *proto = "RTP/AVP"; /* protocol */ - 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 ) - { - p += sprintf( p, "m=video %d RTP/AVP %d\r\n", - id->i_port, id->i_payload_type ); - } - else - { - continue; - } - if ( id->i_bitrate ) + switch( id->i_cat ) { - p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate); + case VIDEO_ES: + mime_major = "video"; + break; + case AUDIO_ES: + mime_major = "audio"; + break; + case SPU_ES: + mime_major = "text"; + break; + default: + continue; } - p += sprintf( p, "b=RR:0\r\n" ); - if( id->psz_rtpmap ) + + if( rtsp_url == NULL ) { - p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type, - id->psz_rtpmap ); + switch( p_sys->proto ) + { + case IPPROTO_UDP: + break; + case IPPROTO_TCP: + proto = "TCP/RTP/AVP"; + break; + case IPPROTO_DCCP: + proto = "DCCP/RTP/AVP"; + break; + case IPPROTO_UDPLITE: + continue; + } } - if( id->psz_fmtp ) + + sdp_AddMedia( &psz_sdp, mime_major, proto, inclport * id->i_port, + id->i_payload_type, false, id->i_bitrate, + id->psz_enc, id->i_clock_rate, id->i_channels, + id->psz_fmtp); + + if( !p_sys->rtcp_mux && (id->i_port & 1) ) /* cf RFC4566 §5.14 */ + sdp_AddAttribute ( &psz_sdp, "rtcp", "%u", id->i_port + 1 ); + + if( rtsp_url != NULL ) { - p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type, - id->psz_fmtp ); + assert( strlen( rtsp_url ) > 0 ); + bool addslash = ( rtsp_url[strlen( rtsp_url ) - 1] != '/' ); + sdp_AddAttribute ( &psz_sdp, "control", + addslash ? "%s/trackID=%u" : "%strackID=%u", + rtsp_url, i ); } - if( b_rtsp ) + else { - p += sprintf( p, "a=control:/trackID=%d\r\n", i ); + if( id->listen_fd != NULL ) + sdp_AddAttribute( &psz_sdp, "setup", "passive" ); + if( p_sys->proto == IPPROTO_DCCP ) + sdp_AddAttribute( &psz_sdp, "dccp-service-code", + "SC:RTP%c", toupper( mime_major[0] ) ); } } - 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 * ); -static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * ); -static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * ); -static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * ); -static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * ); -static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * ); -static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * ); -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 void sprintf_hexa( char *s, uint8_t *p_data, int i_data ) { @@ -920,105 +830,223 @@ static void sprintf_hexa( char *s, uint8_t *p_data, int i_data ) s[2*i_data] = '\0'; } +/** + * Shrink the MTU down to a fixed packetization time (for audio). + */ +static void +rtp_set_ptime (sout_stream_id_t *id, unsigned ptime_ms, size_t bytes) +{ + /* Samples per second */ + size_t spl = (id->i_clock_rate - 1) * ptime_ms / 1000 + 1; + bytes *= id->i_channels; + spl *= bytes; + + if (spl < rtp_mtu (id)) /* MTU is big enough for ptime */ + id->i_mtu = 12 + spl; + else /* MTU is too small for ptime, align to a sample boundary */ + id->i_mtu = 12 + (((id->i_mtu - 12) / bytes) * bytes); +} + +/** 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 cscov = -1; char *psz_sdp; - if( p_sys->p_mux != NULL ) + if (0xffffffff == p_sys->payload_bitmap) + { + msg_Err (p_stream, "too many RTP elementary streams"); + return NULL; + } + + /* Choose the port */ + uint16_t 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; + else + if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 ) + i_port = p_sys->i_port_video; + + /* We do not need the ES lock (p_sys->lock_es) here, because this is the + * only one thread that can *modify* the ES table. The ES lock protects + * the other threads from our modifications (TAB_APPEND, TAB_REMOVE). */ + for (int i = 0; i_port && (i < p_sys->i_es); i++) + if (i_port == p_sys->es[i]->i_port) + i_port = 0; /* Port already in use! */ + for (uint16_t p = p_sys->i_port; i_port == 0; p += 2) { - sout_input_t *p_input = NULL; - if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL ) + if (p == 0) { - msg_Err( p_stream, "cannot add this stream to the muxer" ); + msg_Err (p_stream, "too many RTP elementary streams"); 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; + i_port = p; + for (int i = 0; i_port && (i < p_sys->i_es); i++) + if (p == p_sys->es[i]->i_port) + i_port = 0; } + id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) ); + if( id == NULL ) + return NULL; + vlc_object_attach( id, p_stream ); - /* Choose the port */ - i_port = 0; - if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 ) + id->p_stream = p_stream; + + /* Look for free dymanic payload type */ + id->i_payload_type = 96; + while (p_sys->payload_bitmap & (1 << (id->i_payload_type - 96))) + id->i_payload_type++; + assert (id->i_payload_type < 128); + + vlc_rand_bytes (&id->i_sequence, sizeof (id->i_sequence)); + vlc_rand_bytes (id->ssrc, sizeof (id->ssrc)); + + id->psz_enc = NULL; + id->psz_fmtp = NULL; + id->i_clock_rate = 90000; /* most common case for video */ + id->i_channels = 0; + id->i_port = i_port; + if( p_fmt != NULL ) { - i_port = p_sys->i_port_audio; - p_sys->i_port_audio = 0; + id->i_cat = p_fmt->i_cat; + if( p_fmt->i_cat == AUDIO_ES ) + { + id->i_clock_rate = p_fmt->audio.i_rate; + id->i_channels = p_fmt->audio.i_channels; + } + id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */ } - else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 ) + else { - i_port = p_sys->i_port_video; - p_sys->i_port_video = 0; + id->i_cat = VIDEO_ES; + id->i_bitrate = 0; } - while( i_port == 0 ) + + 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 ); + + id->srtp = NULL; + id->pf_packetize = NULL; + + char *key = var_CreateGetNonEmptyString (p_stream, SOUT_CFG_PREFIX"key"); + if (key) { - if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video ) + id->srtp = srtp_create (SRTP_ENCR_AES_CM, SRTP_AUTH_HMAC_SHA1, 10, + SRTP_PRF_AES_CM, SRTP_RCC_MODE1); + if (id->srtp == NULL) { - i_port = p_sys->i_port; - p_sys->i_port += 2; - break; + free (key); + goto error; } - p_sys->i_port += 2; + + char *salt = var_CreateGetNonEmptyString (p_stream, SOUT_CFG_PREFIX"salt"); + errno = srtp_setkeystring (id->srtp, key, salt ? salt : ""); + free (salt); + free (key); + if (errno) + { + msg_Err (p_stream, "bad SRTP key/salt combination (%m)"); + goto error; + } + id->i_sequence = 0; /* FIXME: awful hack for libvlc_srtp */ } - if( p_sys->psz_destination ) - { - char access[17]; - char url[NI_MAXHOST + 8]; + vlc_mutex_init( &id->lock_sink ); + id->sinkc = 0; + id->sinkv = NULL; + id->rtsp_id = NULL; + id->p_fifo = NULL; + id->listen_fd = NULL; - /* first try to create the access out */ - if( p_sys->i_ttl ) + id->i_caching = + (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching"); + + if( p_sys->psz_destination != NULL ) + switch( p_sys->proto ) { - snprintf( access, sizeof( access ), "udp{raw,ttl=%d}", - p_sys->i_ttl ); - access[sizeof( access ) - 1] = '\0'; + case IPPROTO_DCCP: + { + const char *code; + switch (id->i_cat) + { + case VIDEO_ES: code = "RTPV"; break; + case AUDIO_ES: code = "RTPARTPV"; break; + case SPU_ES: code = "RTPTRTPV"; break; + default: code = "RTPORTPV"; break; + } + var_SetString (p_stream, "dccp-service", code); + } /* fall through */ + case IPPROTO_TCP: + id->listen_fd = net_Listen( VLC_OBJECT(p_stream), + p_sys->psz_destination, i_port, + p_sys->proto ); + if( id->listen_fd == NULL ) + { + msg_Err( p_stream, "passive COMEDIA RTP socket failed" ); + goto error; + } + break; + + default: + { + 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( fd == -1 ) + { + msg_Err( p_stream, "cannot create RTP socket" ); + goto error; + } + rtp_add_sink( id, fd, p_sys->rtcp_mux ); + } } - else - strcpy( access, "udp{raw}" ); - 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_fmt == NULL ) + { + char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" ); - if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL ) + if( psz == NULL ) /* Uho! */ + ; + else + if( strncmp( psz, "ts", 2 ) == 0 ) { - msg_Err( p_stream, "cannot create the access out for %s://%s", - access, url ); - return NULL; + id->i_payload_type = 33; + id->psz_enc = "MP2T"; } - msg_Dbg( p_stream, "access out %s:%s", access, url ); + else + { + id->psz_enc = "MP2P"; + } + free( psz ); } - - /* 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; - + else switch( p_fmt->i_codec ) { - case VLC_FOURCC( 's', '1', '6', 'b' ): + case VLC_CODEC_MULAW: + if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 ) + id->i_payload_type = 0; + id->psz_enc = "PCMU"; + id->pf_packetize = rtp_packetize_split; + rtp_set_ptime (id, 20, 1); + break; + case VLC_CODEC_ALAW: + if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 ) + id->i_payload_type = 8; + id->psz_enc = "PCMA"; + id->pf_packetize = rtp_packetize_split; + rtp_set_ptime (id, 20, 1); + break; + case VLC_CODEC_S16B: if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 ) { id->i_payload_type = 11; @@ -1028,52 +1056,61 @@ 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 ); - id->i_clock_rate = p_fmt->audio.i_rate; - id->pf_packetize = rtp_packetize_l16; + id->psz_enc = "L16"; + id->pf_packetize = rtp_packetize_split; + rtp_set_ptime (id, 20, 2); 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 ); - id->i_clock_rate = p_fmt->audio.i_rate; - id->pf_packetize = rtp_packetize_l8; + case VLC_CODEC_U8: + id->psz_enc = "L8"; + id->pf_packetize = rtp_packetize_split; + rtp_set_ptime (id, 20, 1); break; - case VLC_FOURCC( 'm', 'p', 'g', 'a' ): + case VLC_CODEC_MPGA: id->i_payload_type = 14; - id->i_clock_rate = 90000; - id->psz_rtpmap = strdup( "MPA/90000" ); + id->psz_enc = "MPA"; + id->i_clock_rate = 90000; /* not 44100 */ id->pf_packetize = rtp_packetize_mpa; break; - case VLC_FOURCC( 'm', 'p', 'g', 'v' ): + case VLC_CODEC_MPGV: id->i_payload_type = 32; - id->i_clock_rate = 90000; - id->psz_rtpmap = strdup( "MPV/90000" ); + id->psz_enc = "MPV"; 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" ); + case VLC_CODEC_ADPCM_G726: + switch( p_fmt->i_bitrate / 1000 ) + { + case 16: + id->psz_enc = "G726-16"; + id->pf_packetize = rtp_packetize_g726_16; + break; + case 24: + id->psz_enc = "G726-24"; + id->pf_packetize = rtp_packetize_g726_24; + break; + case 32: + id->psz_enc = "G726-32"; + id->pf_packetize = rtp_packetize_g726_32; + break; + case 40: + id->psz_enc = "G726-40"; + id->pf_packetize = rtp_packetize_g726_40; + break; + default: + msg_Err( p_stream, "cannot add this stream (unsupported " + "G.726 bit rate: %u)", p_fmt->i_bitrate ); + goto error; + } + break; + case VLC_CODEC_A52: + id->psz_enc = "ac3"; 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" ); + case VLC_CODEC_H263: + id->psz_enc = "H263-1998"; 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" ); + case VLC_CODEC_H264: + id->psz_enc = "H264"; id->pf_packetize = rtp_packetize_h264; id->psz_fmtp = NULL; @@ -1085,7 +1122,7 @@ 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 ) { @@ -1098,12 +1135,12 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt ) i_size = i_buffer; for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++) { - if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 ) + if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) ) { /* we found another startcode */ i_size = i_offset; break; - } + } } if( i_nal_type == 7 ) { @@ -1118,52 +1155,49 @@ 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" ); break; - case VLC_FOURCC( 'm', 'p', '4', 'v' ): + case VLC_CODEC_MP4V: { 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->psz_enc = "MP4V-ES"; 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' ): + case VLC_CODEC_MP4A: { - 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 ); + id->psz_enc = "mpeg4-generic"; 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 { @@ -1185,148 +1219,125 @@ 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 ); + id->psz_enc = "MP4A-LATM"; 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" ); + case VLC_CODEC_AMR_NB: + id->psz_enc = "AMR"; id->psz_fmtp = strdup( "octet-align=1" ); - id->i_clock_rate = p_fmt->audio.i_rate; id->pf_packetize = rtp_packetize_amr; - 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" ); + break; + case VLC_CODEC_AMR_WB: + id->psz_enc = "AMR-WB"; 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_CODEC_SPEEX: + id->psz_enc = "SPEEX"; + id->pf_packetize = rtp_packetize_spx; + break; + case VLC_CODEC_ITU_T140: + id->psz_enc = "t140" ; + 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 ); - 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 */ - - 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( p_sys->p_rtsp_url ) - { - char psz_urlc[strlen( p_sys->psz_rtsp_control ) + 1 + 10]; + "codec: %4.4s)", (char*)&p_fmt->i_codec ); + goto error; + } + if (id->i_payload_type >= 96) + /* Mark dynamic payload type in use */ + p_sys->payload_bitmap |= 1 << (id->i_payload_type - 96); + +#if 0 /* No payload formats sets this at the moment */ + if( cscov != -1 ) + cscov += 8 /* UDP */ + 12 /* RTP */; + if( id->sinkc > 0 ) + net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 ); +#endif - sprintf( psz_urlc, "%s/trackID=%d", p_sys->psz_rtsp_path, p_sys->i_es ); - msg_Dbg( p_stream, "rtsp: adding %s\n", psz_urlc ); - id->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, psz_urlc, NULL, NULL, NULL ); - - if( id->p_rtsp_url ) - { - httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallbackId, (void*)id ); - //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream ); - //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream ); - } - } + if( p_sys->rtsp != NULL ) + id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es, + GetDWBE( id->ssrc ), + p_sys->psz_destination, + p_sys->i_ttl, id->i_port, id->i_port + 1 ); + id->p_fifo = block_FifoNew(); + if( vlc_thread_create( id, "RTP send thread", ThreadSend, + VLC_THREAD_PRIORITY_HIGHEST ) ) + goto error; /* 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 ); p_sys->psz_sdp = psz_sdp; vlc_mutex_unlock( &p_sys->lock_sdp ); - 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 ); + if( p_sys->psz_sdp_file != NULL ) FileSetup( p_stream ); return id; + +error: + Del( p_stream, id ); + return NULL; } static int Del( sout_stream_t *p_stream, sout_stream_id_t *id ) { sout_stream_sys_t *p_sys = p_stream->p_sys; + if( id->p_fifo != NULL ) + { + vlc_object_kill( id ); + vlc_thread_join( id ); + block_FifoRelease( 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 ); - /* Release port */ - if( id->i_port > 0 ) - { - if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 ) - p_sys->i_port_audio = id->i_port; - else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 ) - p_sys->i_port_video = id->i_port; - } + /* Release dynamic payload type */ + if (id->i_payload_type >= 96) + p_sys->payload_bitmap &= ~(1 << (id->i_payload_type - 96)); - 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_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= */ + if( id->listen_fd != NULL ) + net_ListenClose( id->listen_fd ); + if( id->srtp != NULL ) + srtp_destroy( id->srtp ); + + vlc_mutex_destroy( &id->lock_sink ); /* 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 ); + if( p_sys->psz_sdp_file != NULL ) FileSetup( p_stream ); - free( id ); + vlc_object_detach( id ); + vlc_object_release( id ); return VLC_SUCCESS; } @@ -1335,110 +1346,18 @@ 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; - - while( i_data > 0 ) - { - 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; -} + assert( p_stream->p_sys->p_mux == NULL ); + (void)p_stream; -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 ) + while( p_buffer != NULL ) { - block_t *p_next; - - AccessOutGrabberWriteBuffer( p_stream, p_buffer ); - p_next = p_buffer->p_next; + if( id->pf_packetize( id, p_buffer ) ) + break; + block_Release( p_buffer ); p_buffer = p_next; } - return VLC_SUCCESS; } @@ -1449,25 +1368,24 @@ 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 ) { - p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX, + announce_method_t *p_method = sout_SAPMethod(); + p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, p_sys->psz_sdp, p_sys->psz_destination, p_method ); + sout_MethodRelease( p_method ); } - sout_MethodRelease( p_method ); return VLC_SUCCESS; } @@ -1479,14 +1397,17 @@ static int FileSetup( sout_stream_t *p_stream ) sout_stream_sys_t *p_sys = p_stream->p_sys; FILE *f; + if( p_sys->psz_sdp == NULL ) + return VLC_EGENERIC; /* too early */ + 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; @@ -1499,11 +1420,12 @@ static int HttpCallback( httpd_file_sys_t *p_args, httpd_file_t *, uint8_t *p_request, uint8_t **pp_data, int *pi_data ); -static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url) +static int HttpSetup( sout_stream_t *p_stream, const 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, @@ -1523,6 +1445,7 @@ static int HttpCallback( httpd_file_sys_t *p_args, httpd_file_t *f, uint8_t *p_request, uint8_t **pp_data, int *pi_data ) { + VLC_UNUSED(f); VLC_UNUSED(p_request); sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args; vlc_mutex_lock( &p_sys->lock_sdp ); @@ -1543,378 +1466,180 @@ static int HttpCallback( httpd_file_sys_t *p_args, } /**************************************************************************** - * RTSP: + * RTP send ****************************************************************************/ -static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, const char *psz_session ) +static void* ThreadSend( vlc_object_t *p_this ) { - 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 ); +#ifdef WIN32 +# define ECONNREFUSED WSAECONNREFUSED +# define ENOPROTOOPT WSAENOPROTOOPT +# define EHOSTUNREACH WSAEHOSTUNREACH +# define ENETUNREACH WSAENETUNREACH +# define ENETDOWN WSAENETDOWN +# define ENOBUFS WSAENOBUFS +# define EAGAIN WSAEWOULDBLOCK +# define EWOULDBLOCK WSAEWOULDBLOCK +#endif + sout_stream_id_t *id = (sout_stream_id_t *)p_this; + unsigned i_caching = id->i_caching; - return rtsp; -} -static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, const char *psz_session ) -{ - int i; + for (;;) + { + block_t *out = block_FifoGet( id->p_fifo ); + block_cleanup_push (out); - if( !psz_session ) return NULL; + if( id->srtp ) + { /* FIXME: this is awfully inefficient */ + size_t len = out->i_buffer; + out = block_Realloc( out, 0, len + 10 ); + out->i_buffer = len; - 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]; + int canc = vlc_savecancel (); + int val = srtp_send( id->srtp, out->p_buffer, &len, len + 10 ); + vlc_restorecancel (canc); + if( val ) + { + errno = val; + msg_Dbg( id, "SRTP sending error: %m" ); + block_Release( out ); + out = NULL; + } + else + out->i_buffer = len; } - } - 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 ); + if (out) + mwait (out->i_dts + i_caching); + vlc_cleanup_pop (); + if (out == NULL) + continue; - 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 ); + ssize_t len = out->i_buffer; + int canc = vlc_savecancel (); - free( rtsp->psz_session ); - free( rtsp ); -} + vlc_mutex_lock( &id->lock_sink ); + unsigned deadc = 0; /* How many dead sockets? */ + int deadv[id->sinkc]; /* Dead sockets list */ -static int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url ) -{ - sout_stream_sys_t *p_sys = p_stream->p_sys; + for( int i = 0; i < id->sinkc; i++ ) + { + if( !id->srtp ) /* FIXME: SRTCP support */ + SendRTCP( id->sinkv[i].rtcp, out ); - msg_Dbg( p_stream, "rtsp setup: %s : %d / %s\n", url->psz_host, url->i_port, url->psz_path ); + if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) >= 0 ) + continue; + switch( net_errno ) + { + /* Soft errors (e.g. ICMP): */ + case ECONNREFUSED: /* Port unreachable */ + case ENOPROTOOPT: +#ifdef EPROTO + case EPROTO: /* Protocol unreachable */ +#endif + case EHOSTUNREACH: /* Host unreachable */ + case ENETUNREACH: /* Network unreachable */ + case ENETDOWN: /* Entire network down */ + send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ); + /* Transient congestion: */ + case ENOMEM: /* out of socket buffers */ + case ENOBUFS: + case EAGAIN: +#if (EAGAIN != EWOULDBLOCK) + case EWOULDBLOCK: +#endif + continue; + } - 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; - } + deadv[deadc++] = id->sinkv[i].rtp_fd; + } + vlc_mutex_unlock( &id->lock_sink ); + block_Release( out ); - 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 ); + for( unsigned i = 0; i < deadc; i++ ) + { + msg_Dbg( id, "removing socket %d", deadv[i] ); + rtp_del_sink( id, deadv[i] ); + } - 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; + /* Hopefully we won't overflow the SO_MAXCONN accept queue */ + while( id->listen_fd != NULL ) + { + int fd = net_Accept( id, id->listen_fd, 0 ); + if( fd == -1 ) + break; + msg_Dbg( id, "adding socket %d", fd ); + rtp_add_sink( id, fd, true ); + } + vlc_restorecancel (canc); } - httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_DESCRIBE, 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 NULL; +} +int rtp_add_sink( sout_stream_id_t *id, int fd, bool rtcp_mux ) +{ + rtp_sink_t sink = { fd, NULL }; + sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP, + rtcp_mux ); + 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; } -static int RtspCallback( httpd_callback_sys_t *p_args, - httpd_client_t *cl, - httpd_message_t *answer, httpd_message_t *query ) +void rtp_del_sink( sout_stream_id_t *id, int fd ) { - 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; - int i_cseq = 0; - - 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; + rtp_sink_t sink = { fd, NULL }; - switch( query->i_type ) + /* 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++ ) { - case HTTPD_MSG_DESCRIBE: - { - char *psz_sdp = SDPGenerate( p_stream, psz_destination ? psz_destination : "0.0.0.0", VLC_TRUE ); - - answer->i_status = 200; - answer->psz_status = strdup( "OK" ); - 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_PLAY: - { - rtsp_client_t *rtsp; - /* for now only multicast so easy */ - answer->i_status = 200; - answer->psz_status = strdup( "OK" ); - answer->i_body = 0; - answer->p_body = NULL; - - psz_session = httpd_MsgGet( query, "Session" ); - 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: - /* FIXME */ - return VLC_EGENERIC; - case HTTPD_MSG_TEARDOWN: + if (id->sinkv[i].rtp_fd == fd) { - rtsp_client_t *rtsp; - - /* for now only multicast so easy again */ - answer->i_status = 200; - answer->psz_status = strdup( "OK" ); - answer->i_body = 0; - answer->p_body = NULL; - - psz_session = httpd_MsgGet( query, "Session" ); - 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 ); - } + sink = id->sinkv[i]; + REMOVE_ELEM( id->sinkv, id->sinkc, i ); break; } - - default: - return VLC_EGENERIC; } - httpd_MsgAdd( answer, "Server", PACKAGE_STRING ); - httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body ); - psz_cseq = httpd_MsgGet( query, "Cseq" ); - if( psz_cseq ) - i_cseq = atoi( psz_cseq ); - else - i_cseq = 0; - httpd_MsgAdd( answer, "Cseq", "%d", i_cseq ); - httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" ); + vlc_mutex_unlock( &id->lock_sink ); - if( psz_session ) - httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session ); - return VLC_SUCCESS; + CloseRTCP( sink.rtcp ); + net_Close( sink.rtp_fd ); } -static int RtspCallbackId( httpd_callback_sys_t *p_args, - httpd_client_t *cl, - httpd_message_t *answer, httpd_message_t *query ) +uint16_t rtp_get_seq( const sout_stream_id_t *id ) { - 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[100]; - const char *psz_session = NULL; - const char *psz_cseq = NULL; - int i_cseq = 0; - - - if( answer == NULL || query == NULL ) - return VLC_SUCCESS; - //fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type ); - - /* */ - snprintf( psz_session_init, sizeof(psz_session_init), "%d", rand() ); + /* This will return values for the next packet. + * Accounting for caching would not be totally trivial. */ + return id->i_sequence; +} - /* */ - answer->i_proto = HTTPD_PROTO_RTSP; - answer->i_version= query->i_version; - answer->i_type = HTTPD_MSG_ANSWER; +/* FIXME: this is pretty bad - if we remove and then insert an ES + * the number will get unsynched from inside RTSP */ +unsigned rtp_get_num( const sout_stream_id_t *id ) +{ + sout_stream_sys_t *p_sys = id->p_stream->p_sys; + int i; - switch( query->i_type ) + vlc_mutex_lock( &p_sys->lock_es ); + for( i = 0; i < p_sys->i_es; i++ ) { - case HTTPD_MSG_SETUP: - { - const char *psz_transport = httpd_MsgGet( query, "Transport" ); - - //fprintf( stderr, "HTTPD_MSG_SETUP: transport=%s\n", psz_transport ); - - if( strstr( psz_transport, "multicast" ) && id->psz_destination ) - { - //fprintf( stderr, "HTTPD_MSG_SETUP: multicast\n" ); - answer->i_status = 200; - answer->psz_status = strdup( "OK" ); - answer->i_body = 0; - answer->p_body = NULL; - - psz_session = httpd_MsgGet( query, "Session" ); - if( !psz_session ) - psz_session = psz_session_init; - - httpd_MsgAdd( answer, "Transport", - "RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d", - id->psz_destination, id->i_port,id->i_port+1, - p_sys->i_ttl > 0 ? p_sys->i_ttl : 1); - } - else if( strstr( psz_transport, "unicast" ) && strstr( psz_transport, "client_port=" ) ) - { - int i_port = atoi( strstr( psz_transport, "client_port=" ) + strlen("client_port=") ); - char ip[NI_MAXNUMERICHOST], psz_access[17], psz_url[NI_MAXNUMERICHOST + 8]; - - sout_access_out_t *p_access; - - rtsp_client_t *rtsp = NULL; - - if( httpd_ClientIP( cl, ip ) == NULL ) - { - answer->i_status = 500; - answer->psz_status = strdup( "Internal server error" ); - answer->i_body = 0; - answer->p_body = NULL; - break; - } - - //fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%d\n", ip, i_port ); - - psz_session = httpd_MsgGet( query, "Session" ); - if( !psz_session ) - { - psz_session = psz_session_init; - rtsp = RtspClientNew( p_stream, psz_session_init ); - } - else - { - rtsp = RtspClientGet( p_stream, psz_session ); - if( rtsp == NULL ) - { - answer->i_status = 454; - answer->psz_status = strdup( "Unknown session id" ); - answer->i_body = 0; - answer->p_body = NULL; - break; - } - } - - /* first try to create the access out */ - if( p_sys->i_ttl ) - snprintf( psz_access, sizeof( psz_access ), - "udp{raw,ttl=%d}", p_sys->i_ttl ); - else - strlcpy( psz_access, "udp{raw}", sizeof( psz_access ) ); - - snprintf( psz_url, sizeof( psz_url ), - ( strchr( ip, ':' ) != NULL ) ? "[%s]:%d" : "%s:%d", - ip, i_port ); - - if( ( p_access = sout_AccessOutNew( p_stream->p_sout, psz_access, psz_url ) ) == NULL ) - { - msg_Err( p_stream, "cannot create the access out for %s://%s", - psz_access, psz_url ); - answer->i_status = 500; - answer->psz_status = strdup( "Internal server error" ); - answer->i_body = 0; - answer->p_body = NULL; - break; - } - - TAB_APPEND( rtsp->i_id, rtsp->id, id ); - TAB_APPEND( rtsp->i_access, rtsp->access, p_access ); - - answer->i_status = 200; - answer->psz_status = strdup( "OK" ); - answer->i_body = 0; - answer->p_body = NULL; - - httpd_MsgAdd( answer, "Transport", - "RTP/AVP/UDP;client_port=%d-%d", i_port, i_port + 1 ); - } - else /* TODO strstr( psz_transport, "interleaved" ) ) */ - { - answer->i_status = 461; - answer->psz_status = strdup( "Unsupported Transport" ); - answer->i_body = 0; - answer->p_body = NULL; - } + if( id == p_sys->es[i] ) break; - } - - default: - return VLC_EGENERIC; } - httpd_MsgAdd( answer, "Server", "VLC Server" ); - httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body ); - psz_cseq = httpd_MsgGet( query, "Cseq" ); - if( psz_cseq ) - i_cseq = atoi( psz_cseq ); - else - i_cseq = 0; - httpd_MsgAdd( answer, "Cseq", "%d", i_cseq ); - httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" ); + vlc_mutex_unlock( &p_sys->lock_es ); - if( psz_session ) - httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session ); - return VLC_SUCCESS; + return i; } -/**************************************************************************** - * rtp_packetize_*: - ****************************************************************************/ -static void rtp_packetize_common( sout_stream_id_t *id, block_t *out, - int b_marker, int64_t i_pts ) + +void rtp_packetize_common( sout_stream_id_t *id, block_t *out, + int b_marker, int64_t i_pts ) { - uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000); + uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / CLOCK_FREQ; out->p_buffer[0] = 0x80; out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type; @@ -1925,625 +1650,156 @@ 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 ) +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 ); - } + block_FifoPut( id->p_fifo, out ); } -static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) +/** + * @return configured max RTP payload size (including payload type-specific + * headers, excluding RTP and transport headers) + */ +size_t rtp_mtu (const sout_stream_id_t *id) { - int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; - - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, 16 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts ); - /* mbz set to 0 */ - out->p_buffer[12] = 0; - out->p_buffer[13] = 0; - /* fragment offset in the current frame */ - out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff; - out->p_buffer[15] = ( (i*i_max) )&0xff; - memcpy( &out->p_buffer[16], p_data, i_payload ); - - out->i_buffer = 16 + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - } - - return VLC_SUCCESS; + return id->i_mtu - 12; } -/* rfc2250 */ -static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; - int b_sequence_start = 0; - int i_temporal_ref = 0; - int i_picture_coding_type = 0; - int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0; - int b_start_slice = 0; - - /* preparse this packet to get some info */ - if( in->i_buffer > 4 ) - { - uint8_t *p = p_data; - int i_rest = in->i_buffer; - - for( ;; ) - { - while( i_rest > 4 && - ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) ) - { - p++; - i_rest--; - } - if( i_rest <= 4 ) - { - break; - } - p += 3; - i_rest -= 4; - - if( *p == 0xb3 ) - { - /* sequence start code */ - b_sequence_start = 1; - } - else if( *p == 0x00 && i_rest >= 4 ) - { - /* picture */ - i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03); - i_picture_coding_type = (p[2] >> 3)&0x07; - - if( i_rest >= 4 && ( i_picture_coding_type == 2 || - i_picture_coding_type == 3 ) ) - { - i_ffv = (p[3] >> 2)&0x01; - i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01); - if( i_rest > 4 && i_picture_coding_type == 3 ) - { - i_fbv = (p[4]>>6)&0x01; - i_bfc = (p[4]>>3)&0x07; - } - } - } - else if( *p <= 0xaf ) - { - b_start_slice = 1; - } - } - } - - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, - 16 + i_payload ); - uint32_t h = ( i_temporal_ref << 16 )| - ( b_sequence_start << 13 )| - ( b_start_slice << 12 )| - ( i == i_count - 1 ? 1 << 11 : 0 )| - ( i_picture_coding_type << 8 )| - ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc; - - /* rtp common header */ - rtp_packetize_common( id, out, (i == i_count - 1)?1:0, - in->i_pts > 0 ? in->i_pts : in->i_dts ); - - /* MBZ:5 T:1 TR:10 AN:1 N:1 S:1 B:1 E:1 P:3 FBV:1 BFC:3 FFV:1 FFC:3 */ - out->p_buffer[12] = ( h >> 24 )&0xff; - out->p_buffer[13] = ( h >> 16 )&0xff; - out->p_buffer[14] = ( h >> 8 )&0xff; - out->p_buffer[15] = ( h )&0xff; - - memcpy( &out->p_buffer[16], p_data, i_payload ); - - out->i_buffer = 16 + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - } - - return VLC_SUCCESS; -} +/***************************************************************************** + * Non-RTP mux + *****************************************************************************/ -static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) +/** 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 ) { - int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; + sout_input_t *p_input; + sout_mux_t *p_mux = p_stream->p_sys->p_mux; + assert( p_mux != NULL ); - for( i = 0; i < i_count; i++ ) + p_input = sout_MuxAddStream( p_mux, p_fmt ); + if( p_input == NULL ) { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, 14 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts ); - /* unit count */ - out->p_buffer[12] = 1; - /* unit header */ - out->p_buffer[13] = 0x00; - /* data */ - memcpy( &out->p_buffer[14], p_data, i_payload ); - - out->i_buffer = 14 + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; + msg_Err( p_stream, "cannot add this stream to the muxer" ); + return NULL; } - return VLC_SUCCESS; + return (sout_stream_id_t *)p_input; } -static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 12; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; - - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, 12 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, ((i == i_count - 1)?1:0), - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - memcpy( &out->p_buffer[12], p_data, i_payload ); - - out->i_buffer = 12 + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - p_data += i_payload; - i_data -= i_payload; - } +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; } -/* rfc3016 */ -static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 14; /* payload max in one packet */ - int latmhdrsize = in->i_buffer / 0xff + 1; - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer, *p_header = NULL; - int i_data = in->i_buffer; - int i; - - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out; - - if( i != 0 ) - latmhdrsize = 0; - out = block_New( p_stream, 12 + latmhdrsize + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0), - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - - if( i == 0 ) - { - int tmp = in->i_buffer; - - p_header=out->p_buffer+12; - while( tmp > 0xfe ) - { - *p_header = 0xff; - p_header++; - tmp -= 0xff; - } - *p_header = tmp; - } - memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload ); - - out->i_buffer = 12 + latmhdrsize + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - } +/** 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 rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 12; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i_packet = 0; - while( i_data > 0 ) - { - int i_payload = (__MIN( i_max, i_data )/4)*4; - block_t *out = block_New( p_stream, 12 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, 0, - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - memcpy( &out->p_buffer[12], p_data, i_payload ); - - out->i_buffer = 12 + i_payload; - out->i_dts = in->i_dts + i_packet * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - i_packet++; - } +static ssize_t 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]; - return VLC_SUCCESS; -} + int64_t i_dts = p_buffer->i_dts; -static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 12; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; + uint8_t *p_data = p_buffer->p_buffer; + size_t i_data = p_buffer->i_buffer; + size_t i_max = id->i_mtu - 12; - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i_packet = 0; + size_t i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max; while( i_data > 0 ) { - int i_payload = (__MIN( i_max, i_data )/2)*2; - block_t *out = block_New( p_stream, 12 + i_payload ); + size_t i_size; - /* rtp common header */ - rtp_packetize_common( id, out, 0, - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - memcpy( &out->p_buffer[12], p_data, i_payload ); - - out->i_buffer = 12 + i_payload; - out->i_dts = in->i_dts + i_packet * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); + /* 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; + } - p_data += i_payload; - i_data -= i_payload; - i_packet++; - } + 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; + } - return VLC_SUCCESS; -} -static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - int i_max = id->i_mtu - 16; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; + i_size = __MIN( i_data, + (unsigned)(id->i_mtu - p_sys->packet->i_buffer) ); - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; + memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer], + p_data, i_size ); - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, 16 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, ((i == i_count - 1)?1:0), - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - /* AU headers */ - /* AU headers length (bits) */ - out->p_buffer[12] = 0; - out->p_buffer[13] = 2*8; - /* for each AU length 13 bits + idx 3bits, */ - out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff; - out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0; - - memcpy( &out->p_buffer[16], p_data, i_payload ); - - out->i_buffer = 16 + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; + p_sys->packet->i_buffer += i_size; + p_data += i_size; + i_data -= i_size; } return VLC_SUCCESS; } -/* rfc2429 */ -#define RTP_H263_HEADER_SIZE (2) // plen = 0 -#define RTP_H263_PAYLOAD_START (14) // plen = 0 -static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) +static ssize_t AccessOutGrabberWrite( sout_access_out_t *p_access, + block_t *p_buffer ) { - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; - int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */ - int i_count; - int b_p_bit; - int b_v_bit = 0; // no pesky error resilience - int i_plen = 0; // normally plen=0 for PSC packet - int i_pebit = 0; // because plen=0 - uint16_t h; - - if( i_data < 2 ) - { - return VLC_EGENERIC; - } - if( p_data[0] || p_data[1] ) - { - return VLC_EGENERIC; - } - /* remove 2 leading 0 bytes */ - p_data += 2; - i_data -= 2; - i_count = ( i_data + i_max - 1 ) / i_max; - - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, - RTP_H263_PAYLOAD_START + i_payload ); - b_p_bit = (i == 0) ? 1 : 0; - h = ( b_p_bit << 10 )| - ( b_v_bit << 9 )| - ( i_plen << 3 )| - i_pebit; - - /* rtp common header */ - //b_m_bit = 1; // always contains end of frame - rtp_packetize_common( id, out, (i == i_count - 1)?1:0, - in->i_pts > 0 ? in->i_pts : in->i_dts ); - - /* h263 header */ - out->p_buffer[12] = ( h >> 8 )&0xff; - out->p_buffer[13] = ( h )&0xff; - memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload ); - - out->i_buffer = RTP_H263_PAYLOAD_START + i_payload; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - } - - return VLC_SUCCESS; -} - -/* 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 ) -{ - const int i_max = id->i_mtu - 12; /* payload max in one packet */ - int i_nal_hdr; - int i_nal_type; - - if( i_data < 5 ) - return VLC_SUCCESS; - - 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; - i_data -= 3; + sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys; - /* */ - if( i_data <= i_max ) + while( p_buffer ) { - /* Single NAL unit packet */ - block_t *out = block_New( p_stream, 12 + i_data ); - out->i_dts = i_dts; - out->i_length = i_length; - - /* */ - rtp_packetize_common( id, out, b_last, i_pts ); - out->i_buffer = 12 + i_data; + block_t *p_next; - memcpy( &out->p_buffer[12], p_data, i_data ); + AccessOutGrabberWriteBuffer( p_stream, p_buffer ); - rtp_packetize_send( id, out ); + p_next = p_buffer->p_next; + block_Release( p_buffer ); + p_buffer = p_next; } - else - { - /* FU-A Fragmentation Unit without interleaving */ - const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2); - int i; - p_data++; - i_data--; - - for( i = 0; i < i_count; i++ ) - { - const int i_payload = __MIN( i_data, i_max-2 ); - block_t *out = block_New( p_stream, 12 + 2 + i_payload ); - out->i_dts = i_dts + i * i_length / i_count; - out->i_length = i_length / i_count; - - /* */ - rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts ); - out->i_buffer = 14 + i_payload; - - /* FU indicator */ - out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28; - /* FU header */ - out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type; - memcpy( &out->p_buffer[14], p_data, i_payload ); - - rtp_packetize_send( id, out ); - - i_data -= i_payload; - p_data += i_payload; - } - } return VLC_SUCCESS; } -static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) -{ - const uint8_t *p_buffer = in->p_buffer; - int i_buffer = in->i_buffer; - - while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) ) - { - i_buffer--; - p_buffer++; - } - - /* Split nal units */ - while( i_buffer > 4 ) - { - int i_offset; - int i_size = i_buffer; - int i_skip = i_buffer; - - /* search nal end */ - for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++) - { - if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 ) - { - /* we found another startcode */ - 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, - (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts, - (i_size >= i_buffer), in->i_length * i_size / in->i_buffer ); - i_buffer -= i_skip; - p_buffer += i_skip; - } - return VLC_SUCCESS; -} - -static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id, - block_t *in ) +static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream ) { - int i_max = id->i_mtu - 14; /* payload max in one packet */ - int i_count = ( in->i_buffer + i_max - 1 ) / i_max; - - uint8_t *p_data = in->p_buffer; - int i_data = in->i_buffer; - int i; - - /* Only supports octet-aligned mode */ - for( i = 0; i < i_count; i++ ) - { - int i_payload = __MIN( i_max, i_data ); - block_t *out = block_New( p_stream, 14 + i_payload ); - - /* rtp common header */ - rtp_packetize_common( id, out, ((i == i_count - 1)?1:0), - (in->i_pts > 0 ? in->i_pts : in->i_dts) ); - /* Payload header */ - out->p_buffer[12] = 0xF0; /* CMR */ - out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */ - - /* FIXME: are we fed multiple frames ? */ - memcpy( &out->p_buffer[14], p_data+1, i_payload-1 ); - - out->i_buffer = 14 + i_payload-1; - out->i_dts = in->i_dts + i * in->i_length / i_count; - out->i_length = in->i_length / i_count; - - rtp_packetize_send( id, out ); - - p_data += i_payload; - i_data -= i_payload; - } + sout_access_out_t *p_grab; - return VLC_SUCCESS; + 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->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; + vlc_object_attach( p_grab, p_stream ); + return p_grab; }