1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
5 * Copyright © 2007 Rémi Denis-Courmont
8 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc_block.h>
33 #include <vlc_httpd.h>
35 #include <vlc_network.h>
36 #include <vlc_charset.h>
37 #include <vlc_strings.h>
42 # include <sys/types.h>
45 # include <sys/stat.h>
47 #ifdef HAVE_LINUX_DCCP_H
48 # include <linux/dccp.h>
51 # define IPPROTO_DCCP 33
53 #ifndef IPPROTO_UDPLITE
54 # define IPPROTO_UDPLITE 136
59 /*****************************************************************************
61 *****************************************************************************/
63 #define DST_TEXT N_("Destination")
64 #define DST_LONGTEXT N_( \
65 "This is the output URL that will be used." )
66 #define SDP_TEXT N_("SDP")
67 #define SDP_LONGTEXT N_( \
68 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
69 "session will be made available. You must use an url: http://location to " \
70 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
71 "for the SDP to be announced via SAP." )
72 #define MUX_TEXT N_("Muxer")
73 #define MUX_LONGTEXT N_( \
74 "This allows you to specify the muxer used for the streaming output. " \
75 "Default is to use no muxer (standard RTP stream)." )
77 #define NAME_TEXT N_("Session name")
78 #define NAME_LONGTEXT N_( \
79 "This is the name of the session that will be announced in the SDP " \
80 "(Session Descriptor)." )
81 #define DESC_TEXT N_("Session description")
82 #define DESC_LONGTEXT N_( \
83 "This allows you to give a short description with details about the stream, " \
84 "that will be announced in the SDP (Session Descriptor)." )
85 #define URL_TEXT N_("Session URL")
86 #define URL_LONGTEXT N_( \
87 "This allows you to give an URL with more details about the stream " \
88 "(often the website of the streaming organization), that will " \
89 "be announced in the SDP (Session Descriptor)." )
90 #define EMAIL_TEXT N_("Session email")
91 #define EMAIL_LONGTEXT N_( \
92 "This allows you to give a contact mail address for the stream, that will " \
93 "be announced in the SDP (Session Descriptor)." )
94 #define PHONE_TEXT N_("Session phone number")
95 #define PHONE_LONGTEXT N_( \
96 "This allows you to give a contact telephone number for the stream, that will " \
97 "be announced in the SDP (Session Descriptor)." )
99 #define PORT_TEXT N_("Port")
100 #define PORT_LONGTEXT N_( \
101 "This allows you to specify the base port for the RTP streaming." )
102 #define PORT_AUDIO_TEXT N_("Audio port")
103 #define PORT_AUDIO_LONGTEXT N_( \
104 "This allows you to specify the default audio port for the RTP streaming." )
105 #define PORT_VIDEO_TEXT N_("Video port")
106 #define PORT_VIDEO_LONGTEXT N_( \
107 "This allows you to specify the default video port for the RTP streaming." )
109 #define TTL_TEXT N_("Hop limit (TTL)")
110 #define TTL_LONGTEXT N_( \
111 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
112 "the multicast packets sent by the stream output (0 = use operating " \
113 "system built-in default).")
115 #define RTCP_MUX_TEXT N_("RTP/RTCP multiplexing")
116 #define RTCP_MUX_LONGTEXT N_( \
117 "This sends and receives RTCP packet multiplexed over the same port " \
120 #define DCCP_TEXT N_("DCCP transport")
121 #define DCCP_LONGTEXT N_( \
122 "This enables DCCP instead of UDP as a transport for RTP." )
123 #define TCP_TEXT N_("TCP transport")
124 #define TCP_LONGTEXT N_( \
125 "This enables TCP instead of UDP as a transport for RTP." )
126 #define UDP_LITE_TEXT N_("UDP-Lite transport")
127 #define UDP_LITE_LONGTEXT N_( \
128 "This enables UDP-Lite instead of UDP as a transport for RTP." )
130 #define RFC3016_TEXT N_("MP4A LATM")
131 #define RFC3016_LONGTEXT N_( \
132 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
134 static int Open ( vlc_object_t * );
135 static void Close( vlc_object_t * );
137 #define SOUT_CFG_PREFIX "sout-rtp-"
138 #define MAX_EMPTY_BLOCKS 200
141 set_shortname( _("RTP"));
142 set_description( _("RTP stream output") );
143 set_capability( "sout stream", 0 );
144 add_shortcut( "rtp" );
145 set_category( CAT_SOUT );
146 set_subcategory( SUBCAT_SOUT_STREAM );
148 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
149 DST_LONGTEXT, VLC_TRUE );
150 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
151 SDP_LONGTEXT, VLC_TRUE );
152 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
153 MUX_LONGTEXT, VLC_TRUE );
155 add_string( SOUT_CFG_PREFIX "name", "", NULL, NAME_TEXT,
156 NAME_LONGTEXT, VLC_TRUE );
157 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
158 DESC_LONGTEXT, VLC_TRUE );
159 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
160 URL_LONGTEXT, VLC_TRUE );
161 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
162 EMAIL_LONGTEXT, VLC_TRUE );
163 add_string( SOUT_CFG_PREFIX "phone", "", NULL, PHONE_TEXT,
164 PHONE_LONGTEXT, VLC_TRUE );
166 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
167 PORT_LONGTEXT, VLC_TRUE );
168 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
169 PORT_AUDIO_LONGTEXT, VLC_TRUE );
170 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
171 PORT_VIDEO_LONGTEXT, VLC_TRUE );
173 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
174 TTL_LONGTEXT, VLC_TRUE );
176 add_bool( SOUT_CFG_PREFIX "rtcp-mux", VLC_FALSE, NULL,
177 RTCP_MUX_TEXT, RTCP_MUX_LONGTEXT, VLC_FALSE );
179 add_bool( SOUT_CFG_PREFIX "dccp", VLC_FALSE, NULL,
180 DCCP_TEXT, DCCP_LONGTEXT, VLC_FALSE );
181 add_bool( SOUT_CFG_PREFIX "tcp", VLC_FALSE, NULL,
182 TCP_TEXT, TCP_LONGTEXT, VLC_FALSE );
183 add_bool( SOUT_CFG_PREFIX "udplite", VLC_FALSE, NULL,
184 UDP_LITE_TEXT, UDP_LITE_LONGTEXT, VLC_FALSE );
186 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
187 RFC3016_LONGTEXT, VLC_FALSE );
189 set_callbacks( Open, Close );
192 /*****************************************************************************
193 * Exported prototypes
194 *****************************************************************************/
195 static const char *ppsz_sout_options[] = {
196 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
197 "description", "url", "email", "phone",
198 "rtcp-mux", "dccp", "tcp", "udplite",
202 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
203 static int Del ( sout_stream_t *, sout_stream_id_t * );
204 static int Send( sout_stream_t *, sout_stream_id_t *,
206 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
207 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
208 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
211 static sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
212 static void ThreadSend( vlc_object_t *p_this );
214 static void SDPHandleUrl( sout_stream_t *, char * );
216 static int SapSetup( sout_stream_t *p_stream );
217 static int FileSetup( sout_stream_t *p_stream );
218 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
220 struct sout_stream_sys_t
224 vlc_mutex_t lock_sdp;
227 vlc_bool_t b_export_sdp_file;
231 vlc_bool_t b_export_sap;
232 session_descriptor_t *p_session;
235 httpd_host_t *p_httpd_host;
236 httpd_file_t *p_httpd_file;
242 char *psz_destination;
246 uint16_t i_port_audio;
247 uint16_t i_port_video;
251 /* when need to use a private one or when using muxer */
254 /* in case we do TS/PS over rtp */
256 sout_access_out_t *p_grab;
262 sout_stream_id_t **es;
265 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
268 typedef struct rtp_sink_t
274 struct sout_stream_id_t
278 sout_stream_t *p_stream;
281 uint8_t i_payload_type;
293 /* Packetizer specific fields */
294 pf_rtp_packetizer_t pf_packetize;
298 vlc_mutex_t lock_sink;
301 rtsp_stream_id_t *rtsp_id;
304 block_fifo_t *p_fifo;
309 /*****************************************************************************
311 *****************************************************************************/
312 static int Open( vlc_object_t *p_this )
314 sout_stream_t *p_stream = (sout_stream_t*)p_this;
315 sout_instance_t *p_sout = p_stream->p_sout;
316 sout_stream_sys_t *p_sys = NULL;
317 config_chain_t *p_cfg = NULL;
319 vlc_bool_t b_rtsp = VLC_FALSE;
321 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
322 ppsz_sout_options, p_stream->p_cfg );
324 p_sys = malloc( sizeof( sout_stream_sys_t ) );
328 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
330 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
331 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
332 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
333 p_sys->rtcp_mux = var_GetBool( p_stream, SOUT_CFG_PREFIX "rtcp-mux" );
335 p_sys->psz_sdp_file = NULL;
337 if( p_sys->i_port_audio == p_sys->i_port_video )
339 msg_Err( p_stream, "audio and video port cannot be the same" );
340 p_sys->i_port_audio = 0;
341 p_sys->i_port_video = 0;
344 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
346 if( !strcmp( p_cfg->psz_name, "sdp" )
347 && ( p_cfg->psz_value != NULL )
348 && !strncasecmp( p_cfg->psz_value, "rtsp:", 5 ) )
356 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
359 if( !strncasecmp( psz, "rtsp:", 5 ) )
365 /* Transport protocol */
366 p_sys->proto = IPPROTO_UDP;
368 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "dccp" ) )
370 p_sys->proto = IPPROTO_DCCP;
371 p_sys->rtcp_mux = VLC_TRUE; /* Force RTP/RTCP mux */
375 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "tcp" ) )
377 p_sys->proto = IPPROTO_TCP;
378 p_sys->rtcp_mux = VLC_TRUE; /* Force RTP/RTCP mux */
382 if( var_GetBool( p_stream, SOUT_CFG_PREFIX "udplite" ) )
383 p_sys->proto = IPPROTO_UDPLITE;
385 if( ( p_sys->psz_destination == NULL ) && !b_rtsp )
387 msg_Err( p_stream, "missing destination and not in RTSP mode" );
392 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
393 if( p_sys->i_ttl == 0 )
395 /* Normally, we should let the default hop limit up to the core,
396 * but we have to know it to build our SDP properly, which is why
397 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
399 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
402 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
404 p_sys->i_payload_type = 96;
408 p_sys->psz_sdp = NULL;
410 p_sys->b_export_sap = VLC_FALSE;
411 p_sys->b_export_sdp_file = VLC_FALSE;
412 p_sys->p_session = NULL;
414 p_sys->p_httpd_host = NULL;
415 p_sys->p_httpd_file = NULL;
417 p_stream->p_sys = p_sys;
419 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
420 vlc_mutex_init( p_stream, &p_sys->lock_es );
422 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
425 sout_stream_id_t *id;
427 /* Check muxer type */
428 if( strncasecmp( psz, "ps", 2 )
429 && strncasecmp( psz, "mpeg1", 5 )
430 && strncasecmp( psz, "ts", 2 ) )
432 msg_Err( p_stream, "unsupported muxer type for RTP (only TS/PS)" );
434 vlc_mutex_destroy( &p_sys->lock_sdp );
435 vlc_mutex_destroy( &p_sys->lock_es );
440 p_sys->p_grab = GrabberCreate( p_stream );
441 p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab );
444 if( p_sys->p_mux == NULL )
446 msg_Err( p_stream, "cannot create muxer" );
447 sout_AccessOutDelete( p_sys->p_grab );
448 vlc_mutex_destroy( &p_sys->lock_sdp );
449 vlc_mutex_destroy( &p_sys->lock_es );
454 id = Add( p_stream, NULL );
457 sout_MuxDelete( p_sys->p_mux );
458 sout_AccessOutDelete( p_sys->p_grab );
459 vlc_mutex_destroy( &p_sys->lock_sdp );
460 vlc_mutex_destroy( &p_sys->lock_es );
465 p_sys->packet = NULL;
467 p_stream->pf_add = MuxAdd;
468 p_stream->pf_del = MuxDel;
469 p_stream->pf_send = MuxSend;
474 p_sys->p_grab = NULL;
476 p_stream->pf_add = Add;
477 p_stream->pf_del = Del;
478 p_stream->pf_send = Send;
481 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
484 config_chain_t *p_cfg;
486 SDPHandleUrl( p_stream, psz );
488 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
490 if( !strcmp( p_cfg->psz_name, "sdp" ) )
492 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
495 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
496 if( !strcmp( p_cfg->psz_value, psz ) )
499 SDPHandleUrl( p_stream, p_cfg->psz_value );
505 /* update p_sout->i_out_pace_nocontrol */
506 p_stream->p_sout->i_out_pace_nocontrol++;
511 /*****************************************************************************
513 *****************************************************************************/
514 static void Close( vlc_object_t * p_this )
516 sout_stream_t *p_stream = (sout_stream_t*)p_this;
517 sout_stream_sys_t *p_sys = p_stream->p_sys;
519 /* update p_sout->i_out_pace_nocontrol */
520 p_stream->p_sout->i_out_pace_nocontrol--;
524 assert( p_sys->i_es == 1 );
525 Del( p_stream, p_sys->es[0] );
527 sout_MuxDelete( p_sys->p_mux );
528 sout_AccessOutDelete( p_sys->p_grab );
531 block_Release( p_sys->packet );
533 if( p_sys->b_export_sap )
536 SapSetup( p_stream );
540 if( p_sys->rtsp != NULL )
541 RtspUnsetup( p_sys->rtsp );
543 vlc_mutex_destroy( &p_sys->lock_sdp );
544 vlc_mutex_destroy( &p_sys->lock_es );
546 if( p_sys->p_httpd_file )
547 httpd_FileDelete( p_sys->p_httpd_file );
549 if( p_sys->p_httpd_host )
550 httpd_HostDelete( p_sys->p_httpd_host );
552 free( p_sys->psz_sdp );
554 if( p_sys->b_export_sdp_file )
557 unlink( p_sys->psz_sdp_file );
559 free( p_sys->psz_sdp_file );
561 free( p_sys->psz_destination );
565 /*****************************************************************************
567 *****************************************************************************/
568 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
570 sout_stream_sys_t *p_sys = p_stream->p_sys;
573 vlc_UrlParse( &url, psz_url, 0 );
574 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
576 if( p_sys->p_httpd_file )
578 msg_Err( p_stream, "you can use sdp=http:// only once" );
582 if( HttpSetup( p_stream, &url ) )
584 msg_Err( p_stream, "cannot export SDP as HTTP" );
587 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
589 if( p_sys->rtsp != NULL )
591 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
595 /* FIXME test if destination is multicast or no destination at all */
596 p_sys->rtsp = RtspSetup( p_stream, &url );
597 if( p_sys->rtsp == NULL )
599 msg_Err( p_stream, "cannot export SDP as RTSP" );
602 if( p_sys->p_mux != NULL )
604 sout_stream_id_t *id = p_sys->es[0];
605 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0, GetDWBE( id->ssrc ),
606 p_sys->psz_destination, p_sys->i_ttl,
607 id->i_port, id->i_port + 1 );
610 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
611 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
613 p_sys->b_export_sap = VLC_TRUE;
614 SapSetup( p_stream );
616 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
618 if( p_sys->b_export_sdp_file )
620 msg_Err( p_stream, "you can use sdp=file:// only once" );
623 p_sys->b_export_sdp_file = VLC_TRUE;
624 psz_url = &psz_url[5];
625 if( psz_url[0] == '/' && psz_url[1] == '/' )
627 p_sys->psz_sdp_file = strdup( psz_url );
631 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
636 vlc_UrlClean( &url );
639 /*****************************************************************************
641 *****************************************************************************/
643 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
645 const sout_stream_sys_t *p_sys = p_stream->p_sys;
647 struct sockaddr_storage dst;
651 * When we have a fixed destination (typically when we do multicast),
652 * we need to put the actual port numbers in the SDP.
653 * When there is no fixed destination, we only support RTSP unicast
654 * on-demand setup, so we should rather let the clients decide which ports
656 * When there is both a fixed destination and RTSP unicast, we need to
657 * put port numbers used by the fixed destination, otherwise the SDP would
658 * become totally incorrect for multicast use. It should be noted that
659 * port numbers from SDP with RTSP are only "recommendation" from the
660 * server to the clients (per RFC2326), so only broken clients will fail
661 * to handle this properly. There is no solution but to use two differents
662 * output chain with two different RTSP URLs if you need to handle this
667 if( p_sys->psz_destination != NULL )
671 /* Oh boy, this is really ugly! (+ race condition on lock_es) */
672 dstlen = sizeof( dst );
673 if( p_sys->es[0]->listen_fd != NULL )
674 getsockname( p_sys->es[0]->listen_fd[0],
675 (struct sockaddr *)&dst, &dstlen );
677 getpeername( p_sys->es[0]->sinkv[0].rtp_fd,
678 (struct sockaddr *)&dst, &dstlen );
684 /* Dummy destination address for RTSP */
685 memset (&dst, 0, sizeof( struct sockaddr_in ) );
686 dst.ss_family = AF_INET;
690 dstlen = sizeof( struct sockaddr_in );
693 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_stream ), SOUT_CFG_PREFIX,
694 NULL, 0, (struct sockaddr *)&dst, dstlen );
695 if( psz_sdp == NULL )
698 /* TODO: a=source-filter */
699 if( p_sys->rtcp_mux )
700 sdp_AddAttribute( &psz_sdp, "rtcp-mux", NULL );
702 if( rtsp_url != NULL )
703 sdp_AddAttribute ( &psz_sdp, "control", "%s", rtsp_url );
705 /* FIXME: locking?! */
706 for( i = 0; i < p_sys->i_es; i++ )
708 sout_stream_id_t *id = p_sys->es[i];
709 const char *mime_major; /* major MIME type */
710 const char *proto = "RTP/AVP"; /* protocol */
715 mime_major = "video";
718 mime_major = "audio";
727 if( rtsp_url == NULL )
729 switch( p_sys->proto )
734 proto = "TCP/RTP/AVP";
737 proto = "DCCP/RTP/AVP";
739 case IPPROTO_UDPLITE:
744 sdp_AddMedia( &psz_sdp, mime_major, proto, inclport * id->i_port,
745 id->i_payload_type, VLC_FALSE, id->i_bitrate,
746 id->psz_enc, id->i_clock_rate, id->i_channels,
749 if( rtsp_url != NULL )
751 assert( strlen( rtsp_url ) > 0 );
752 vlc_bool_t addslash = ( rtsp_url[strlen( rtsp_url ) - 1] != '/' );
753 sdp_AddAttribute ( &psz_sdp, "control",
754 addslash ? "%s/trackID=%u" : "%strackID=%u",
759 if( id->listen_fd != NULL )
760 sdp_AddAttribute( &psz_sdp, "setup", "passive" );
762 if( p_sys->proto == IPPROTO_DCCP )
763 sdp_AddAttribute( &psz_sdp, "dccp-service-code",
764 "SC:RTP%c", toupper( mime_major[0] ) );
772 /*****************************************************************************
774 *****************************************************************************/
776 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
778 static const char hex[16] = "0123456789abcdef";
781 for( i = 0; i < i_data; i++ )
783 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
784 s[2*i+1] = hex[(p_data[i] )&0xf];
790 /** Add an ES as a new RTP stream */
791 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
793 /* NOTE: As a special case, if we use a non-RTP
794 * mux (TS/PS), then p_fmt is NULL. */
795 sout_stream_sys_t *p_sys = p_stream->p_sys;
796 sout_stream_id_t *id;
797 int i_port, cscov = -1;
800 id = vlc_object_create( p_stream, sizeof( sout_stream_id_t ) );
803 vlc_object_attach( id, p_stream );
805 /* Choose the port */
810 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
812 i_port = p_sys->i_port_audio;
813 p_sys->i_port_audio = 0;
816 if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
818 i_port = p_sys->i_port_video;
819 p_sys->i_port_video = 0;
824 if( p_sys->i_port != p_sys->i_port_audio
825 && p_sys->i_port != p_sys->i_port_video )
827 i_port = p_sys->i_port;
834 id->p_stream = p_stream;
836 id->i_sequence = rand()&0xffff;
837 id->i_payload_type = p_sys->i_payload_type;
838 id->ssrc[0] = rand()&0xff;
839 id->ssrc[1] = rand()&0xff;
840 id->ssrc[2] = rand()&0xff;
841 id->ssrc[3] = rand()&0xff;
845 id->i_clock_rate = 90000; /* most common case for video */
850 id->i_cat = p_fmt->i_cat;
851 if( p_fmt->i_cat == AUDIO_ES )
853 id->i_clock_rate = p_fmt->audio.i_rate;
854 id->i_channels = p_fmt->audio.i_channels;
856 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
860 id->i_cat = VIDEO_ES;
864 id->pf_packetize = NULL;
865 id->i_mtu = config_GetInt( p_stream, "mtu" );
866 if( id->i_mtu <= 12 + 16 )
867 id->i_mtu = 576 - 20 - 8; /* pessimistic */
869 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
871 vlc_mutex_init( p_stream, &id->lock_sink );
876 id->listen_fd = NULL;
879 (int64_t)1000 * var_GetInteger( p_stream, SOUT_CFG_PREFIX "caching");
881 if( p_sys->psz_destination != NULL )
882 switch( p_sys->proto )
886 id->listen_fd = net_Listen( VLC_OBJECT(p_stream),
887 p_sys->psz_destination, i_port,
889 if( id->listen_fd == NULL )
891 msg_Err( p_stream, "passive COMEDIA RTP socket failed" );
898 int ttl = (p_sys->i_ttl > 0) ? p_sys->i_ttl : -1;
899 int fd = net_ConnectDgram( p_stream, p_sys->psz_destination,
900 i_port, ttl, p_sys->proto );
903 msg_Err( p_stream, "cannot create RTP socket" );
906 rtp_add_sink( id, fd, p_sys->rtcp_mux );
912 char *psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
914 if( psz == NULL ) /* Uho! */
917 if( strncmp( psz, "ts", 2 ) == 0 )
919 id->i_payload_type = 33;
920 id->psz_enc = "MP2T";
924 id->psz_enc = "MP2P";
928 switch( p_fmt->i_codec )
930 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
931 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
932 id->i_payload_type = 0;
933 id->psz_enc = "PCMU";
934 id->pf_packetize = rtp_packetize_l8;
936 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
937 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 8000 )
938 id->i_payload_type = 8;
939 id->psz_enc = "PCMA";
940 id->pf_packetize = rtp_packetize_l8;
942 case VLC_FOURCC( 's', '1', '6', 'b' ):
943 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
945 id->i_payload_type = 11;
947 else if( p_fmt->audio.i_channels == 2 &&
948 p_fmt->audio.i_rate == 44100 )
950 id->i_payload_type = 10;
953 id->pf_packetize = rtp_packetize_l16;
955 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
957 id->pf_packetize = rtp_packetize_l8;
959 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
960 id->i_payload_type = 14;
962 id->pf_packetize = rtp_packetize_mpa;
964 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
965 id->i_payload_type = 32;
967 id->pf_packetize = rtp_packetize_mpv;
969 case VLC_FOURCC( 'a', '5', '2', ' ' ):
971 id->pf_packetize = rtp_packetize_ac3;
973 case VLC_FOURCC( 'H', '2', '6', '3' ):
974 id->psz_enc = "H263-1998";
975 id->pf_packetize = rtp_packetize_h263;
977 case VLC_FOURCC( 'h', '2', '6', '4' ):
978 id->psz_enc = "H264";
979 id->pf_packetize = rtp_packetize_h264;
982 if( p_fmt->i_extra > 0 )
984 uint8_t *p_buffer = p_fmt->p_extra;
985 int i_buffer = p_fmt->i_extra;
986 char *p_64_sps = NULL;
987 char *p_64_pps = NULL;
990 while( i_buffer > 4 &&
991 p_buffer[0] == 0 && p_buffer[1] == 0 &&
992 p_buffer[2] == 0 && p_buffer[3] == 1 )
994 const int i_nal_type = p_buffer[4]&0x1f;
998 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1001 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1003 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1005 /* we found another startcode */
1010 if( i_nal_type == 7 )
1012 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1013 sprintf_hexa( hexa, &p_buffer[5], 3 );
1015 else if( i_nal_type == 8 )
1017 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1023 if( p_64_sps && p_64_pps &&
1024 ( asprintf( &id->psz_fmtp,
1025 "packetization-mode=1;profile-level-id=%s;"
1026 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1027 p_64_pps ) == -1 ) )
1028 id->psz_fmtp = NULL;
1033 id->psz_fmtp = strdup( "packetization-mode=1" );
1036 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1038 char hexa[2*p_fmt->i_extra +1];
1040 id->psz_enc = "MP4V-ES";
1041 id->pf_packetize = rtp_packetize_split;
1042 if( p_fmt->i_extra > 0 )
1044 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1045 if( asprintf( &id->psz_fmtp,
1046 "profile-level-id=3; config=%s;", hexa ) == -1 )
1047 id->psz_fmtp = NULL;
1051 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1055 char hexa[2*p_fmt->i_extra +1];
1057 id->psz_enc = "mpeg4-generic";
1058 id->pf_packetize = rtp_packetize_mp4a;
1059 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1060 if( asprintf( &id->psz_fmtp,
1061 "streamtype=5; profile-level-id=15; "
1062 "mode=AAC-hbr; config=%s; SizeLength=13; "
1063 "IndexLength=3; IndexDeltaLength=3; Profile=1;",
1065 id->psz_fmtp = NULL;
1071 unsigned char config[6];
1072 unsigned int aacsrates[15] = {
1073 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1074 16000, 12000, 11025, 8000, 7350, 0, 0 };
1076 for( i = 0; i < 15; i++ )
1077 if( p_fmt->audio.i_rate == aacsrates[i] )
1083 config[3]=p_fmt->audio.i_channels<<4;
1087 id->psz_enc = "MP4A-LATM";
1088 id->pf_packetize = rtp_packetize_mp4a_latm;
1089 sprintf_hexa( hexa, config, 6 );
1090 if( asprintf( &id->psz_fmtp, "profile-level-id=15; "
1091 "object=2; cpresent=0; config=%s", hexa ) == -1 )
1092 id->psz_fmtp = NULL;
1096 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1097 id->psz_enc = "AMR";
1098 id->psz_fmtp = strdup( "octet-align=1" );
1099 id->pf_packetize = rtp_packetize_amr;
1101 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1102 id->psz_enc = "AMR-WB";
1103 id->psz_fmtp = strdup( "octet-align=1" );
1104 id->pf_packetize = rtp_packetize_amr;
1106 case VLC_FOURCC( 's', 'p', 'x', ' ' ):
1107 id->i_payload_type = p_sys->i_payload_type++;
1108 id->psz_enc = "SPEEX";
1109 id->pf_packetize = rtp_packetize_spx;
1111 case VLC_FOURCC( 't', '1', '4', '0' ):
1112 id->psz_enc = "t140" ;
1113 id->i_clock_rate = 1000;
1114 id->pf_packetize = rtp_packetize_t140;
1118 msg_Err( p_stream, "cannot add this stream (unsupported "
1119 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1124 cscov += 8 /* UDP */ + 12 /* RTP */;
1126 net_SetCSCov( id->sinkv[0].rtp_fd, cscov, -1 );
1128 if( id->i_payload_type == p_sys->i_payload_type )
1129 p_sys->i_payload_type++;
1131 if( p_sys->rtsp != NULL )
1132 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1133 GetDWBE( id->ssrc ),
1134 p_sys->psz_destination,
1135 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1137 id->p_fifo = block_FifoNew( p_stream );
1138 if( vlc_thread_create( id, "RTP send thread", ThreadSend,
1139 VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
1142 /* Update p_sys context */
1143 vlc_mutex_lock( &p_sys->lock_es );
1144 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1145 vlc_mutex_unlock( &p_sys->lock_es );
1147 psz_sdp = SDPGenerate( p_stream, NULL );
1149 vlc_mutex_lock( &p_sys->lock_sdp );
1150 free( p_sys->psz_sdp );
1151 p_sys->psz_sdp = psz_sdp;
1152 vlc_mutex_unlock( &p_sys->lock_sdp );
1154 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1156 /* Update SDP (sap/file) */
1157 if( p_sys->b_export_sap ) SapSetup( p_stream );
1158 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1163 Del( p_stream, id );
1167 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1169 sout_stream_sys_t *p_sys = p_stream->p_sys;
1171 if( id->p_fifo != NULL )
1173 vlc_object_kill( id );
1174 block_FifoWake( id->p_fifo );
1175 vlc_thread_join( id );
1176 block_FifoRelease( id->p_fifo );
1179 vlc_mutex_lock( &p_sys->lock_es );
1180 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1181 vlc_mutex_unlock( &p_sys->lock_es );
1184 if( id->i_port > 0 )
1186 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1187 p_sys->i_port_audio = id->i_port;
1188 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1189 p_sys->i_port_video = id->i_port;
1192 free( id->psz_fmtp );
1195 RtspDelId( p_sys->rtsp, id->rtsp_id );
1197 rtp_del_sink( id, id->sinkv[0].rtp_fd ); /* sink for explicit dst= */
1198 if( id->listen_fd != NULL )
1199 net_ListenClose( id->listen_fd );
1201 vlc_mutex_destroy( &id->lock_sink );
1203 /* Update SDP (sap/file) */
1204 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1205 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1207 vlc_object_detach( id );
1208 vlc_object_destroy( id );
1212 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1217 assert( p_stream->p_sys->p_mux == NULL );
1219 while( p_buffer != NULL )
1221 p_next = p_buffer->p_next;
1222 if( id->pf_packetize( p_stream, id, p_buffer ) )
1225 block_Release( p_buffer );
1231 /****************************************************************************
1233 ****************************************************************************/
1234 static int SapSetup( sout_stream_t *p_stream )
1236 sout_stream_sys_t *p_sys = p_stream->p_sys;
1237 sout_instance_t *p_sout = p_stream->p_sout;
1239 /* Remove the previous session */
1240 if( p_sys->p_session != NULL)
1242 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1243 p_sys->p_session = NULL;
1246 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1248 announce_method_t *p_method = sout_SAPMethod();
1249 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1251 p_sys->psz_destination,
1253 sout_MethodRelease( p_method );
1259 /****************************************************************************
1261 ****************************************************************************/
1262 static int FileSetup( sout_stream_t *p_stream )
1264 sout_stream_sys_t *p_sys = p_stream->p_sys;
1267 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1269 msg_Err( p_stream, "cannot open file '%s' (%m)",
1270 p_sys->psz_sdp_file );
1271 return VLC_EGENERIC;
1274 fputs( p_sys->psz_sdp, f );
1280 /****************************************************************************
1282 ****************************************************************************/
1283 static int HttpCallback( httpd_file_sys_t *p_args,
1284 httpd_file_t *, uint8_t *p_request,
1285 uint8_t **pp_data, int *pi_data );
1287 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1289 sout_stream_sys_t *p_sys = p_stream->p_sys;
1291 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host,
1292 url->i_port > 0 ? url->i_port : 80 );
1293 if( p_sys->p_httpd_host )
1295 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1296 url->psz_path ? url->psz_path : "/",
1299 HttpCallback, (void*)p_sys );
1301 if( p_sys->p_httpd_file == NULL )
1303 return VLC_EGENERIC;
1308 static int HttpCallback( httpd_file_sys_t *p_args,
1309 httpd_file_t *f, uint8_t *p_request,
1310 uint8_t **pp_data, int *pi_data )
1312 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1314 vlc_mutex_lock( &p_sys->lock_sdp );
1315 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1317 *pi_data = strlen( p_sys->psz_sdp );
1318 *pp_data = malloc( *pi_data );
1319 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1326 vlc_mutex_unlock( &p_sys->lock_sdp );
1331 /****************************************************************************
1333 ****************************************************************************/
1334 static void ThreadSend( vlc_object_t *p_this )
1336 sout_stream_id_t *id = (sout_stream_id_t *)p_this;
1337 unsigned i_caching = id->i_caching;
1339 int fd[5] = { -1, -1, -1, -1, -1 };
1347 fd[4] = open( "/dev/null", O_WRONLY );
1352 block_t *out = block_FifoGet( id->p_fifo );
1354 continue; /* Forced wakeup */
1356 mtime_t i_date = out->i_dts + i_caching;
1357 ssize_t len = out->i_buffer;
1361 len = write( fd[1], out->p_buffer, len);
1363 continue; /* Uho - should not happen */
1367 vlc_mutex_lock( &id->lock_sink );
1368 unsigned deadc = 0; /* How many dead sockets? */
1369 int deadv[id->sinkc]; /* Dead sockets list */
1371 for( int i = 0; i < id->sinkc; i++ )
1373 SendRTCP( id->sinkv[i].rtcp, out );
1376 tee( fd[0], fd[3], len, 0 );
1377 if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len,
1378 SPLICE_F_NONBLOCK ) >= 0 )
1380 if( errno == EAGAIN )
1384 splice( fd[2], NULL, fd[4], NULL, len, 0 );
1386 if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) >= 0 )
1389 /* Retry sending to root out soft-errors */
1390 if( send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 ) >= 0 )
1393 deadv[deadc++] = id->sinkv[i].rtp_fd;
1395 vlc_mutex_unlock( &id->lock_sink );
1397 block_Release( out );
1399 splice( fd[0], NULL, fd[4], NULL, len, 0 );
1402 for( unsigned i = 0; i < deadc; i++ )
1404 msg_Dbg( id, "removing socket %d", deadv[i] );
1405 rtp_del_sink( id, deadv[i] );
1408 /* Hopefully we won't overflow the SO_MAXCONN accept queue */
1409 while( id->listen_fd != NULL )
1411 int fd = net_Accept( id, id->listen_fd, 0 );
1414 msg_Dbg( id, "adding socket %d", fd );
1415 rtp_add_sink( id, fd, VLC_TRUE );
1420 for( unsigned i = 0; i < 5; i++ )
1425 int rtp_add_sink( sout_stream_id_t *id, int fd, vlc_bool_t rtcp_mux )
1427 rtp_sink_t sink = { fd, NULL };
1428 sink.rtcp = OpenRTCP( VLC_OBJECT( id->p_stream ), fd, IPPROTO_UDP,
1430 if( sink.rtcp == NULL )
1431 msg_Err( id, "RTCP failed!" );
1433 vlc_mutex_lock( &id->lock_sink );
1434 INSERT_ELEM( id->sinkv, id->sinkc, id->sinkc, sink );
1435 vlc_mutex_unlock( &id->lock_sink );
1439 void rtp_del_sink( sout_stream_id_t *id, int fd )
1441 rtp_sink_t sink = { fd, NULL };
1443 /* NOTE: must be safe to use if fd is not included */
1444 vlc_mutex_lock( &id->lock_sink );
1445 for( int i = 0; i < id->sinkc; i++ )
1447 if (id->sinkv[i].rtp_fd == fd)
1449 sink = id->sinkv[i];
1450 REMOVE_ELEM( id->sinkv, id->sinkc, i );
1454 vlc_mutex_unlock( &id->lock_sink );
1456 CloseRTCP( sink.rtcp );
1457 net_Close( sink.rtp_fd );
1460 uint16_t rtp_get_seq( const sout_stream_id_t *id )
1462 /* This will return values for the next packet.
1463 * Accounting for caching would not be totally trivial. */
1464 return id->i_sequence;
1467 /* FIXME: this is pretty bad - if we remove and then insert an ES
1468 * the number will get unsynched from inside RTSP */
1469 unsigned rtp_get_num( const sout_stream_id_t *id )
1471 sout_stream_sys_t *p_sys = id->p_stream->p_sys;
1474 vlc_mutex_lock( &p_sys->lock_es );
1475 for( i = 0; i < p_sys->i_es; i++ )
1477 if( id == p_sys->es[i] )
1480 vlc_mutex_unlock( &p_sys->lock_es );
1486 void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1487 int b_marker, int64_t i_pts )
1489 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1491 out->p_buffer[0] = 0x80;
1492 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1493 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1494 out->p_buffer[3] = ( id->i_sequence )&0xff;
1495 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1496 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1497 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1498 out->p_buffer[7] = ( i_timestamp )&0xff;
1500 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1506 void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1508 block_FifoPut( id->p_fifo, out );
1512 * @return configured max RTP payload size (including payload type-specific
1513 * headers, excluding RTP and transport headers)
1515 size_t rtp_mtu (const sout_stream_id_t *id)
1517 return id->i_mtu - 12;
1521 * @return number of audio samples to include for a given packetization time
1522 * (this really only makes sense for audio formats).
1524 size_t rtp_plen (const sout_stream_id_t * id, unsigned ptime_ms)
1526 return id->i_channels * (((id->i_clock_rate - 1) * ptime_ms / 1000) + 1);
1530 /*****************************************************************************
1532 *****************************************************************************/
1534 /** Add an ES to a non-RTP muxed stream */
1535 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
1537 sout_input_t *p_input;
1538 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1539 assert( p_mux != NULL );
1541 p_input = sout_MuxAddStream( p_mux, p_fmt );
1542 if( p_input == NULL )
1544 msg_Err( p_stream, "cannot add this stream to the muxer" );
1548 return (sout_stream_id_t *)p_input;
1552 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
1555 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1556 assert( p_mux != NULL );
1558 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
1563 /** Remove an ES from a non-RTP muxed stream */
1564 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
1566 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
1567 assert( p_mux != NULL );
1569 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
1574 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1575 const block_t *p_buffer )
1577 sout_stream_sys_t *p_sys = p_stream->p_sys;
1578 sout_stream_id_t *id = p_sys->es[0];
1580 int64_t i_dts = p_buffer->i_dts;
1582 uint8_t *p_data = p_buffer->p_buffer;
1583 unsigned int i_data = p_buffer->i_buffer;
1584 unsigned int i_max = id->i_mtu - 12;
1586 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1590 unsigned int i_size;
1592 /* output complete packet */
1593 if( p_sys->packet &&
1594 p_sys->packet->i_buffer + i_data > i_max )
1596 rtp_packetize_send( id, p_sys->packet );
1597 p_sys->packet = NULL;
1600 if( p_sys->packet == NULL )
1602 /* allocate a new packet */
1603 p_sys->packet = block_New( p_stream, id->i_mtu );
1604 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
1605 p_sys->packet->i_dts = i_dts;
1606 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1607 i_dts += p_sys->packet->i_length;
1610 i_size = __MIN( i_data,
1611 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
1613 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1616 p_sys->packet->i_buffer += i_size;
1625 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1628 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1634 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1636 p_next = p_buffer->p_next;
1637 block_Release( p_buffer );
1645 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
1647 sout_access_out_t *p_grab;
1649 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
1650 if( p_grab == NULL )
1653 p_grab->p_module = NULL;
1654 p_grab->p_sout = p_stream->p_sout;
1655 p_grab->psz_access = strdup( "grab" );
1656 p_grab->p_cfg = NULL;
1657 p_grab->psz_path = strdup( "" );
1658 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
1659 p_grab->pf_seek = NULL;
1660 p_grab->pf_write = AccessOutGrabberWrite;