1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
36 #include <vlc_block.h>
38 #include <vlc_httpd.h>
40 #include <vlc_network.h>
41 #include <vlc_charset.h>
42 #include <vlc_strings.h>
46 /*****************************************************************************
48 *****************************************************************************/
52 #define DST_TEXT N_("Destination")
53 #define DST_LONGTEXT N_( \
54 "This is the output URL that will be used." )
55 #define SDP_TEXT N_("SDP")
56 #define SDP_LONGTEXT N_( \
57 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
58 "session will be made available. You must use an url: http://location to " \
59 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
60 "for the SDP to be announced via SAP." )
61 #define MUX_TEXT N_("Muxer")
62 #define MUX_LONGTEXT N_( \
63 "This allows you to specify the muxer used for the streaming output. " \
64 "Default is to use no muxer (standard RTP stream)." )
66 #define NAME_TEXT N_("Session name")
67 #define NAME_LONGTEXT N_( \
68 "This is the name of the session that will be announced in the SDP " \
69 "(Session Descriptor)." )
70 #define DESC_TEXT N_("Session description")
71 #define DESC_LONGTEXT N_( \
72 "This allows you to give a broader description of the stream, that will " \
73 "be announced in the SDP (Session Descriptor)." )
74 #define URL_TEXT N_("Session URL")
75 #define URL_LONGTEXT N_( \
76 "This allows you to give an URL with more details about the stream " \
77 "(often the website of the streaming organization), that will " \
78 "be announced in the SDP (Session Descriptor)." )
79 #define EMAIL_TEXT N_("Session email")
80 #define EMAIL_LONGTEXT N_( \
81 "This allows you to give a contact mail address for the stream, that will " \
82 "be announced in the SDP (Session Descriptor)." )
83 #define PORT_TEXT N_("Port")
84 #define PORT_LONGTEXT N_( \
85 "This allows you to specify the base port for the RTP streaming." )
86 #define PORT_AUDIO_TEXT N_("Audio port")
87 #define PORT_AUDIO_LONGTEXT N_( \
88 "This allows you to specify the default audio port for the RTP streaming." )
89 #define PORT_VIDEO_TEXT N_("Video port")
90 #define PORT_VIDEO_LONGTEXT N_( \
91 "This allows you to specify the default video port for the RTP streaming." )
93 #define TTL_TEXT N_("Hop limit (TTL)")
94 #define TTL_LONGTEXT N_( \
95 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
96 "the multicast packets sent by the stream output (0 = use operating " \
97 "system built-in default).")
99 #define RFC3016_TEXT N_("MP4A LATM")
100 #define RFC3016_LONGTEXT N_( \
101 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
103 static int Open ( vlc_object_t * );
104 static void Close( vlc_object_t * );
106 #define SOUT_CFG_PREFIX "sout-rtp-"
109 set_shortname( _("RTP"));
110 set_description( _("RTP stream output") );
111 set_capability( "sout stream", 0 );
112 add_shortcut( "rtp" );
113 set_category( CAT_SOUT );
114 set_subcategory( SUBCAT_SOUT_STREAM );
116 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
117 DST_LONGTEXT, VLC_TRUE );
118 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
119 SDP_LONGTEXT, VLC_TRUE );
120 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
121 MUX_LONGTEXT, VLC_TRUE );
123 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
124 NAME_LONGTEXT, VLC_TRUE );
125 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
126 DESC_LONGTEXT, VLC_TRUE );
127 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
128 URL_LONGTEXT, VLC_TRUE );
129 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
130 EMAIL_LONGTEXT, VLC_TRUE );
132 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
133 PORT_LONGTEXT, VLC_TRUE );
134 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
135 PORT_AUDIO_LONGTEXT, VLC_TRUE );
136 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
137 PORT_VIDEO_LONGTEXT, VLC_TRUE );
139 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
140 TTL_LONGTEXT, VLC_TRUE );
142 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
143 RFC3016_LONGTEXT, VLC_FALSE );
145 set_callbacks( Open, Close );
148 /*****************************************************************************
149 * Exported prototypes
150 *****************************************************************************/
151 static const char *ppsz_sout_options[] = {
152 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
153 "description", "url","email", "mp4a-latm", NULL
156 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
157 static int Del ( sout_stream_t *, sout_stream_id_t * );
158 static int Send( sout_stream_t *, sout_stream_id_t *,
161 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
163 static void SDPHandleUrl( sout_stream_t *, char * );
165 static int SapSetup( sout_stream_t *p_stream );
166 static int FileSetup( sout_stream_t *p_stream );
167 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
169 struct sout_stream_id_t
171 sout_stream_t *p_stream;
173 uint8_t i_payload_type;
175 uint32_t i_timestamp_start;
186 /* Packetizer specific fields */
187 pf_rtp_packetizer_t pf_packetize;
190 /* for sending the packets */
191 sout_access_out_t *p_access;
193 vlc_mutex_t lock_sink;
195 sout_access_out_t **sink;
196 rtsp_stream_id_t *rtsp_id;
199 sout_input_t *p_input;
203 /*****************************************************************************
205 *****************************************************************************/
206 static int Open( vlc_object_t *p_this )
208 sout_stream_t *p_stream = (sout_stream_t*)p_this;
209 sout_instance_t *p_sout = p_stream->p_sout;
210 sout_stream_sys_t *p_sys = NULL;
211 config_chain_t *p_cfg = NULL;
213 vlc_bool_t b_rtsp = VLC_FALSE;
215 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
216 ppsz_sout_options, p_stream->p_cfg );
218 p_sys = malloc( sizeof( sout_stream_sys_t ) );
222 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
223 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
224 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
225 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
226 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
228 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
229 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
230 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
232 p_sys->psz_sdp_file = NULL;
234 if( p_sys->i_port_audio == p_sys->i_port_video )
236 msg_Err( p_stream, "audio and video port cannot be the same" );
237 p_sys->i_port_audio = 0;
238 p_sys->i_port_video = 0;
241 if( !p_sys->psz_session_name )
243 if( p_sys->psz_destination )
244 p_sys->psz_session_name = strdup( p_sys->psz_destination );
246 p_sys->psz_session_name = strdup( "NONE" );
249 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
251 if( !strcmp( p_cfg->psz_name, "sdp" ) )
253 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
263 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
264 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
266 free( val2.psz_string );
269 if( p_sys->psz_destination == NULL )
273 msg_Err( p_stream, "missing destination and not in rtsp mode" );
278 else if( p_sys->i_port <= 0 )
280 msg_Err( p_stream, "invalid port" );
285 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
286 if( p_sys->i_ttl == 0 )
288 /* Normally, we should let the default hop limit up to the core,
289 * but we have to know it to build our SDP properly, which is why
290 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
292 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
294 if( p_sys->i_ttl > 255 )
296 /* must not exceed 999 once formatted */
298 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
300 p_sys->i_payload_type = 96;
305 p_sys->psz_sdp = NULL;
307 p_sys->i_sdp_id = mdate();
308 p_sys->i_sdp_version = 1;
309 p_sys->psz_sdp = NULL;
311 p_sys->b_export_sap = VLC_FALSE;
312 p_sys->b_export_sdp_file = VLC_FALSE;
313 p_sys->p_session = NULL;
315 p_sys->p_httpd_host = NULL;
316 p_sys->p_httpd_file = NULL;
317 p_sys->p_rtsp_host = NULL;
318 p_sys->p_rtsp_url = NULL;
319 p_sys->psz_rtsp_control = NULL;
320 p_sys->psz_rtsp_path = NULL;
322 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
323 vlc_mutex_init( p_stream, &p_sys->lock_es );
325 p_stream->pf_add = Add;
326 p_stream->pf_del = Del;
327 p_stream->pf_send = Send;
329 p_stream->p_sys = p_sys;
331 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
332 if( *val.psz_string )
334 sout_access_out_t *p_grab;
335 const char *psz_rtpmap;
336 char url[NI_MAXHOST + 8], access[22], psz_ttl[5], ipv;
340 msg_Err( p_stream, "muxing is not supported in RTSP mode" );
344 else if( p_sys->psz_destination == NULL )
346 msg_Err( p_stream, "RTP needs a destination when muxing" );
351 /* Check muxer type */
352 if( !strncasecmp( val.psz_string, "ps", 2 )
353 || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
355 psz_rtpmap = "MP2P/90000";
357 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
359 psz_rtpmap = "MP2T/90000";
360 p_sys->i_payload_type = 33;
364 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
369 /* create the access out */
370 if( p_sys->i_ttl > 0 )
372 sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl );
376 strcat( access, "udp{raw,rtcp}" );
379 /* FIXME: we should check that url is a numerical address, otherwise
380 * the SDP will be quite broken (regardless of the IP protocol version)
381 * Also it might be IPv6 with no ':' if it is a DNS name.
383 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
385 /* IPv6 needs brackets if not already present */
386 if ((ipv == '6') && (p_sys->psz_destination[0] != '['))
387 snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination,
390 snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination,
393 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
395 msg_Err( p_stream, "cannot create the access out for %s://%s",
400 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
401 if( p_sys->i_mtu <= 16 + MTU_REDUCE )
403 /* better than nothing */
406 p_sys->i_mtu -= MTU_REDUCE;
408 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
409 p_grab = p_sys->p_grab =
410 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
411 p_grab->p_module = NULL;
412 p_grab->p_sout = p_sout;
413 p_grab->psz_access = strdup( "grab" );
414 p_grab->p_cfg = NULL;
415 p_grab->psz_path = strdup( "" );
416 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
417 p_grab->pf_seek = NULL;
418 p_grab->pf_write = AccessOutGrabberWrite;
421 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
423 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
424 sout_AccessOutDelete( p_sys->p_grab );
425 sout_AccessOutDelete( p_sys->p_access );
430 /* create the SDP for a muxed stream (only once) */
431 /* FIXME http://www.faqs.org/rfcs/rfc4566.html
432 o= - should be local username (no spaces allowed)
433 o= time should be hashed with some other value to garantee uniqueness
434 o= don't use the localhost address. use fully qualified domain name or IP4 address
435 a= source-filter: we need our source address
436 a= x-plgroup: (missing)
437 RTP packets need to get the correct src IP address */
439 && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) )
441 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
442 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
449 asprintf( &p_sys->psz_sdp,
451 /* FIXME: source address not known :( */
452 "o=- "I64Fd" %d IN IP%c %s\r\n"
458 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
459 "a=tool:"PACKAGE_STRING"\r\n"
461 "a=type:broadcast\r\n"
462 "m=video %d RTP/AVP %d\r\n"
463 "a=rtpmap:%d %s\r\n",
464 p_sys->i_sdp_id, p_sys->i_sdp_version,
465 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
466 p_sys->psz_session_name,
467 p_sys->psz_session_description,
468 p_sys->psz_session_url,
469 p_sys->psz_session_email,
470 ipv, p_sys->psz_destination, psz_ttl,
471 p_sys->i_port, p_sys->i_payload_type,
472 p_sys->i_payload_type, psz_rtpmap );
473 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
475 /* create the rtp context */
476 p_sys->ssrc[0] = rand()&0xff;
477 p_sys->ssrc[1] = rand()&0xff;
478 p_sys->ssrc[2] = rand()&0xff;
479 p_sys->ssrc[3] = rand()&0xff;
480 p_sys->i_sequence = rand()&0xffff;
481 p_sys->i_timestamp_start = rand()&0xffffffff;
482 p_sys->packet = NULL;
487 p_sys->p_access = NULL;
488 p_sys->p_grab = NULL;
490 free( val.psz_string );
493 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
494 if( *val.psz_string )
496 config_chain_t *p_cfg;
498 SDPHandleUrl( p_stream, val.psz_string );
500 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
502 if( !strcmp( p_cfg->psz_name, "sdp" ) )
504 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
507 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
508 if( !strcmp( p_cfg->psz_value, val.psz_string ) )
511 SDPHandleUrl( p_stream, p_cfg->psz_value );
515 free( val.psz_string );
517 /* update p_sout->i_out_pace_nocontrol */
518 p_stream->p_sout->i_out_pace_nocontrol++;
523 /*****************************************************************************
525 *****************************************************************************/
526 static void Close( vlc_object_t * p_this )
528 sout_stream_t *p_stream = (sout_stream_t*)p_this;
529 sout_stream_sys_t *p_sys = p_stream->p_sys;
531 /* update p_sout->i_out_pace_nocontrol */
532 p_stream->p_sout->i_out_pace_nocontrol--;
536 sout_MuxDelete( p_sys->p_mux );
537 sout_AccessOutDelete( p_sys->p_access );
538 sout_AccessOutDelete( p_sys->p_grab );
541 block_Release( p_sys->packet );
543 if( p_sys->b_export_sap )
546 SapSetup( p_stream );
550 RtspUnsetup( p_stream );
552 vlc_mutex_destroy( &p_sys->lock_sdp );
554 if( p_sys->p_httpd_file )
555 httpd_FileDelete( p_sys->p_httpd_file );
557 if( p_sys->p_httpd_host )
558 httpd_HostDelete( p_sys->p_httpd_host );
560 if( p_sys->psz_session_name )
561 free( p_sys->psz_session_name );
563 if( p_sys->psz_session_description )
564 free( p_sys->psz_session_description );
566 if( p_sys->psz_session_url )
567 free( p_sys->psz_session_url );
569 if( p_sys->psz_session_email )
570 free( p_sys->psz_session_email );
573 free( p_sys->psz_sdp );
575 if( p_sys->b_export_sdp_file )
578 unlink( p_sys->psz_sdp_file );
580 free( p_sys->psz_sdp_file );
582 free( p_sys->psz_destination );
586 /*****************************************************************************
588 *****************************************************************************/
589 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
591 sout_stream_sys_t *p_sys = p_stream->p_sys;
594 vlc_UrlParse( &url, psz_url, 0 );
595 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
597 if( p_sys->p_httpd_file )
599 msg_Err( p_stream, "you can use sdp=http:// only once" );
603 if( HttpSetup( p_stream, &url ) )
605 msg_Err( p_stream, "cannot export sdp as http" );
608 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
610 if( p_sys->p_rtsp_url )
612 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
616 /* FIXME test if destination is multicast or no destination at all FIXME */
617 if( RtspSetup( p_stream, &url ) )
619 msg_Err( p_stream, "cannot export sdp as rtsp" );
622 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
623 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
625 p_sys->b_export_sap = VLC_TRUE;
626 SapSetup( p_stream );
628 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
630 if( p_sys->b_export_sdp_file )
632 msg_Err( p_stream, "you can use sdp=file:// only once" );
635 p_sys->b_export_sdp_file = VLC_TRUE;
636 psz_url = &psz_url[5];
637 if( psz_url[0] == '/' && psz_url[1] == '/' )
639 p_sys->psz_sdp_file = strdup( psz_url );
643 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
646 vlc_UrlClean( &url );
649 /*****************************************************************************
651 *****************************************************************************/
652 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
653 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
654 o= - should be local username (no spaces allowed)
655 o= time should be hashed with some other value to garantue uniqueness
656 o= we need IP6 support?
657 o= don't use the localhost address. use fully qualified domain name or IP4 address
658 p= international phone number (pass via vars?)
660 a= recvonly (missing)
661 a= type:broadcast (missing)
662 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
663 a= x-plgroup: (missing)
664 RTP packets need to get the correct src IP address */
665 /*static*/ char *SDPGenerate( const sout_stream_t *p_stream,
666 const char *psz_destination, vlc_bool_t b_rtsp )
668 sout_stream_sys_t *p_sys = p_stream->p_sys;
670 char *psz_sdp, *p, ipv;
673 /* FIXME: breaks IP version check on unknown destination */
674 if( psz_destination == NULL )
675 psz_destination = "0.0.0.0";
677 i_size = sizeof( "v=0\r\n" ) +
678 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
679 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
680 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
681 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
682 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
683 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
684 sizeof( "b=RR:0\r\n" ) +
685 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
686 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
687 strlen( psz_destination ) ;
688 for( i = 0; i < p_sys->i_es; i++ )
690 sout_stream_id_t *id = p_sys->es[i];
692 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
695 i_size += strlen( "b=AS: *\r\n") + 10;
699 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
703 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
707 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
712 i_size += strlen( "m=video %d RTP/AVP %d\r\n" ) +10 +10;
715 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
717 p = psz_sdp = malloc( i_size );
718 p += sprintf( p, "v=0\r\n" );
719 p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
720 p_sys->i_sdp_id, p_sys->i_sdp_version,
721 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
722 if( *p_sys->psz_session_name )
723 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
724 if( *p_sys->psz_session_description )
725 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
726 if( *p_sys->psz_session_url )
727 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
728 if( *p_sys->psz_session_email )
729 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
731 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
732 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
734 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
737 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
739 /* Add the deprecated TTL field if it is an IPv4 multicast address */
740 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
742 p += sprintf( p, "\r\n" );
743 p += sprintf( p, "b=RR:0\r\n" );
745 for( i = 0; i < p_sys->i_es; i++ )
747 sout_stream_id_t *id = p_sys->es[i];
749 if( id->i_cat == AUDIO_ES )
751 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
752 id->i_port, id->i_payload_type );
754 else if( id->i_cat == VIDEO_ES )
756 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
757 id->i_port, id->i_payload_type );
765 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
769 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
774 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
779 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
784 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
785 p_sys->i_port, p_sys->i_payload_type );
791 /*****************************************************************************
793 *****************************************************************************/
794 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
795 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
796 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
797 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
798 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
799 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
800 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
801 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
802 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
803 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
804 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
806 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
808 static const char hex[16] = "0123456789abcdef";
811 for( i = 0; i < i_data; i++ )
813 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
814 s[2*i+1] = hex[(p_data[i] )&0xf];
819 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
821 sout_instance_t *p_sout = p_stream->p_sout;
822 sout_stream_sys_t *p_sys = p_stream->p_sys;
823 sout_stream_id_t *id;
824 sout_access_out_t *p_access = NULL;
828 if( p_sys->p_mux != NULL )
830 sout_input_t *p_input = NULL;
831 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
833 msg_Err( p_stream, "cannot add this stream to the muxer" );
837 id = malloc( sizeof( sout_stream_id_t ) );
838 memset( id, 0, sizeof( sout_stream_id_t ) );
840 id->p_input = p_input;
841 id->pf_packetize= NULL;
848 /* Choose the port */
850 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
852 i_port = p_sys->i_port_audio;
853 p_sys->i_port_audio = 0;
855 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
857 i_port = p_sys->i_port_video;
858 p_sys->i_port_video = 0;
862 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
864 i_port = p_sys->i_port;
871 if( p_sys->psz_destination )
874 char url[NI_MAXHOST + 8];
876 /* first try to create the access out */
877 if( p_sys->i_ttl > 0 )
879 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
881 access[sizeof( access ) - 1] = '\0';
884 strcpy( access, "udp{raw,rtcp}" );
886 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
887 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
888 p_sys->psz_destination, i_port );
889 url[sizeof( url ) - 1] = '\0';
891 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
893 msg_Err( p_stream, "cannot create the access out for %s://%s",
897 msg_Dbg( p_stream, "access out %s:%s", access, url );
900 /* not create the rtp specific stuff */
901 id = malloc( sizeof( sout_stream_id_t ) );
902 memset( id, 0, sizeof( sout_stream_id_t ) );
903 id->p_stream = p_stream;
904 id->p_access = p_access;
906 id->psz_rtpmap = NULL;
911 vlc_mutex_init( p_stream, &id->lock_sink );
915 switch( p_fmt->i_codec )
917 case VLC_FOURCC( 's', '1', '6', 'b' ):
918 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
920 id->i_payload_type = 11;
922 else if( p_fmt->audio.i_channels == 2 &&
923 p_fmt->audio.i_rate == 44100 )
925 id->i_payload_type = 10;
929 id->i_payload_type = p_sys->i_payload_type++;
931 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
932 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
933 p_fmt->audio.i_channels );
934 id->i_clock_rate = p_fmt->audio.i_rate;
935 id->pf_packetize = rtp_packetize_l16;
937 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
938 id->i_payload_type = p_sys->i_payload_type++;
939 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
940 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
941 p_fmt->audio.i_channels );
942 id->i_clock_rate = p_fmt->audio.i_rate;
943 id->pf_packetize = rtp_packetize_l8;
945 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
946 id->i_payload_type = 14;
947 id->i_clock_rate = 90000;
948 id->psz_rtpmap = strdup( "MPA/90000" );
949 id->pf_packetize = rtp_packetize_mpa;
951 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
952 id->i_payload_type = 32;
953 id->i_clock_rate = 90000;
954 id->psz_rtpmap = strdup( "MPV/90000" );
955 id->pf_packetize = rtp_packetize_mpv;
957 case VLC_FOURCC( 'a', '5', '2', ' ' ):
958 id->i_payload_type = p_sys->i_payload_type++;
959 id->i_clock_rate = 90000;
960 id->psz_rtpmap = strdup( "ac3/90000" );
961 id->pf_packetize = rtp_packetize_ac3;
963 case VLC_FOURCC( 'H', '2', '6', '3' ):
964 id->i_payload_type = p_sys->i_payload_type++;
965 id->i_clock_rate = 90000;
966 id->psz_rtpmap = strdup( "H263-1998/90000" );
967 id->pf_packetize = rtp_packetize_h263;
969 case VLC_FOURCC( 'h', '2', '6', '4' ):
970 id->i_payload_type = p_sys->i_payload_type++;
971 id->i_clock_rate = 90000;
972 id->psz_rtpmap = strdup( "H264/90000" );
973 id->pf_packetize = rtp_packetize_h264;
976 if( p_fmt->i_extra > 0 )
978 uint8_t *p_buffer = p_fmt->p_extra;
979 int i_buffer = p_fmt->i_extra;
980 char *p_64_sps = NULL;
981 char *p_64_pps = NULL;
984 while( i_buffer > 4 &&
985 p_buffer[0] == 0 && p_buffer[1] == 0 &&
986 p_buffer[2] == 0 && p_buffer[3] == 1 )
988 const int i_nal_type = p_buffer[4]&0x1f;
992 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
995 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
997 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
999 /* we found another startcode */
1004 if( i_nal_type == 7 )
1006 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1007 sprintf_hexa( hexa, &p_buffer[5], 3 );
1009 else if( i_nal_type == 8 )
1011 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1017 if( p_64_sps && p_64_pps )
1018 asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
1025 id->psz_fmtp = strdup( "packetization-mode=1" );
1028 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1030 char hexa[2*p_fmt->i_extra +1];
1032 id->i_payload_type = p_sys->i_payload_type++;
1033 id->i_clock_rate = 90000;
1034 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1035 id->pf_packetize = rtp_packetize_split;
1036 if( p_fmt->i_extra > 0 )
1038 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1039 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1040 sprintf( id->psz_fmtp,
1041 "profile-level-id=3; config=%s;", hexa );
1045 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1047 id->i_payload_type = p_sys->i_payload_type++;
1048 id->i_clock_rate = p_fmt->audio.i_rate;
1052 char hexa[2*p_fmt->i_extra +1];
1054 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1055 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1056 id->pf_packetize = rtp_packetize_mp4a;
1057 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1058 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1059 sprintf( id->psz_fmtp,
1060 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1061 "config=%s; SizeLength=13;IndexLength=3; "
1062 "IndexDeltaLength=3; Profile=1;", hexa );
1068 unsigned char config[6];
1069 unsigned int aacsrates[15] = {
1070 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1071 16000, 12000, 11025, 8000, 7350, 0, 0 };
1073 for( i = 0; i < 15; i++ )
1074 if( p_fmt->audio.i_rate == aacsrates[i] )
1080 config[3]=p_fmt->audio.i_channels<<4;
1084 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1085 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1086 id->pf_packetize = rtp_packetize_mp4a_latm;
1087 sprintf_hexa( hexa, config, 6 );
1088 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1089 "object=2; cpresent=0; config=%s", hexa );
1093 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1094 id->i_payload_type = p_sys->i_payload_type++;
1095 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1096 "AMR/8000/2" : "AMR/8000" );
1097 id->psz_fmtp = strdup( "octet-align=1" );
1098 id->i_clock_rate = p_fmt->audio.i_rate;
1099 id->pf_packetize = rtp_packetize_amr;
1101 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1102 id->i_payload_type = p_sys->i_payload_type++;
1103 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1104 "AMR-WB/16000/2" : "AMR-WB/16000" );
1105 id->psz_fmtp = strdup( "octet-align=1" );
1106 id->i_clock_rate = p_fmt->audio.i_rate;
1107 id->pf_packetize = rtp_packetize_amr;
1111 msg_Err( p_stream, "cannot add this stream (unsupported "
1112 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1115 sout_AccessOutDelete( p_access );
1120 id->i_cat = p_fmt->i_cat;
1122 id->ssrc[0] = rand()&0xff;
1123 id->ssrc[1] = rand()&0xff;
1124 id->ssrc[2] = rand()&0xff;
1125 id->ssrc[3] = rand()&0xff;
1126 id->i_sequence = rand()&0xffff;
1127 id->i_timestamp_start = rand()&0xffffffff;
1128 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1130 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1131 if( id->i_mtu <= 16 + MTU_REDUCE )
1133 /* better than nothing */
1136 id->i_mtu -= MTU_REDUCE;
1137 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1139 if( p_sys->p_rtsp_url )
1140 id->rtsp_id = RtspAddId( p_stream, id, id->i_port, id->i_port + 1 );
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, p_sys->psz_destination, VLC_FALSE );
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 p_sys->i_sdp_version++;
1156 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
1158 /* Update SDP (sap/file) */
1159 if( p_sys->b_export_sap ) SapSetup( p_stream );
1160 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1165 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1167 sout_stream_sys_t *p_sys = p_stream->p_sys;
1169 vlc_mutex_lock( &p_sys->lock_es );
1170 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1171 vlc_mutex_unlock( &p_sys->lock_es );
1174 if( id->i_port > 0 )
1176 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1177 p_sys->i_port_audio = id->i_port;
1178 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1179 p_sys->i_port_video = id->i_port;
1184 if( id->psz_rtpmap )
1186 free( id->psz_rtpmap );
1190 free( id->psz_fmtp );
1192 sout_AccessOutDelete( id->p_access );
1194 else if( id->p_input )
1196 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1199 RtspDelId( p_stream, id->rtsp_id );
1201 vlc_mutex_destroy( &id->lock_sink );
1204 /* Update SDP (sap/file) */
1205 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1206 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1212 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1217 if( p_stream->p_sys->p_mux )
1219 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1225 p_next = p_buffer->p_next;
1226 if( id->pf_packetize( p_stream, id, p_buffer ) )
1230 block_Release( p_buffer );
1238 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1241 sout_stream_sys_t *p_sys = p_stream->p_sys;
1243 int64_t i_dts = p_buffer->i_dts;
1244 uint32_t i_timestamp = i_dts * 9 / 100;
1246 uint8_t *p_data = p_buffer->p_buffer;
1247 unsigned int i_data = p_buffer->i_buffer;
1248 unsigned int i_max = p_sys->i_mtu - 12;
1250 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1254 unsigned int i_size;
1256 /* output complete packet */
1257 if( p_sys->packet &&
1258 p_sys->packet->i_buffer + i_data > i_max )
1260 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1261 p_sys->packet = NULL;
1264 if( p_sys->packet == NULL )
1266 /* allocate a new packet */
1267 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1268 p_sys->packet->p_buffer[ 0] = 0x80;
1269 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1270 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1271 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1272 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1273 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1274 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1275 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1276 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1277 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1278 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1279 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1280 p_sys->packet->i_buffer = 12;
1282 p_sys->packet->i_dts = i_dts;
1283 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1284 i_dts += p_sys->packet->i_length;
1286 p_sys->i_sequence++;
1289 i_size = __MIN( i_data,
1290 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1292 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1295 p_sys->packet->i_buffer += i_size;
1303 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1306 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1308 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1314 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1316 p_next = p_buffer->p_next;
1317 block_Release( p_buffer );
1324 /****************************************************************************
1326 ****************************************************************************/
1327 static int SapSetup( sout_stream_t *p_stream )
1329 sout_stream_sys_t *p_sys = p_stream->p_sys;
1330 sout_instance_t *p_sout = p_stream->p_sout;
1331 announce_method_t *p_method = sout_SAPMethod();
1333 /* Remove the previous session */
1334 if( p_sys->p_session != NULL)
1336 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1337 sout_AnnounceSessionDestroy( p_sys->p_session );
1338 p_sys->p_session = NULL;
1341 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1343 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1345 p_sys->psz_destination,
1349 sout_MethodRelease( p_method );
1353 /****************************************************************************
1355 ****************************************************************************/
1356 static int FileSetup( sout_stream_t *p_stream )
1358 sout_stream_sys_t *p_sys = p_stream->p_sys;
1361 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1363 msg_Err( p_stream, "cannot open file '%s' (%s)",
1364 p_sys->psz_sdp_file, strerror(errno) );
1365 return VLC_EGENERIC;
1368 fprintf( f, "%s", p_sys->psz_sdp );
1374 /****************************************************************************
1376 ****************************************************************************/
1377 static int HttpCallback( httpd_file_sys_t *p_args,
1378 httpd_file_t *, uint8_t *p_request,
1379 uint8_t **pp_data, int *pi_data );
1381 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1383 sout_stream_sys_t *p_sys = p_stream->p_sys;
1385 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1386 if( p_sys->p_httpd_host )
1388 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1389 url->psz_path ? url->psz_path : "/",
1392 HttpCallback, (void*)p_sys );
1394 if( p_sys->p_httpd_file == NULL )
1396 return VLC_EGENERIC;
1401 static int HttpCallback( httpd_file_sys_t *p_args,
1402 httpd_file_t *f, uint8_t *p_request,
1403 uint8_t **pp_data, int *pi_data )
1405 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1407 vlc_mutex_lock( &p_sys->lock_sdp );
1408 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1410 *pi_data = strlen( p_sys->psz_sdp );
1411 *pp_data = malloc( *pi_data );
1412 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1419 vlc_mutex_unlock( &p_sys->lock_sdp );
1424 /****************************************************************************
1426 ****************************************************************************/
1427 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1428 int b_marker, int64_t i_pts )
1430 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1432 out->p_buffer[0] = 0x80;
1433 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1434 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1435 out->p_buffer[3] = ( id->i_sequence )&0xff;
1436 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1437 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1438 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1439 out->p_buffer[7] = ( i_timestamp )&0xff;
1441 out->p_buffer[ 8] = id->ssrc[0];
1442 out->p_buffer[ 9] = id->ssrc[1];
1443 out->p_buffer[10] = id->ssrc[2];
1444 out->p_buffer[11] = id->ssrc[3];
1450 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1453 vlc_mutex_lock( &id->lock_sink );
1454 for( i = 0; i < id->i_sink; i++ )
1456 sout_AccessOutWrite( id->sink[i], block_Duplicate( out ) );
1458 vlc_mutex_unlock( &id->lock_sink );
1462 sout_AccessOutWrite( id->p_access, out );
1466 block_Release( out );
1470 int rtp_add_sink( sout_stream_id_t *id, sout_access_out_t *access )
1472 vlc_mutex_lock( &id->lock_sink );
1473 TAB_APPEND( id->i_sink, id->sink, access );
1474 vlc_mutex_unlock( &id->lock_sink );
1478 void rtp_del_sink( sout_stream_id_t *id, sout_access_out_t *access )
1480 vlc_mutex_lock( &id->lock_sink );
1481 TAB_REMOVE( id->i_sink, id->sink, access );
1482 vlc_mutex_unlock( &id->lock_sink );
1485 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1488 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1489 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1491 uint8_t *p_data = in->p_buffer;
1492 int i_data = in->i_buffer;
1495 for( i = 0; i < i_count; i++ )
1497 int i_payload = __MIN( i_max, i_data );
1498 block_t *out = block_New( p_stream, 16 + i_payload );
1500 /* rtp common header */
1501 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1503 out->p_buffer[12] = 0;
1504 out->p_buffer[13] = 0;
1505 /* fragment offset in the current frame */
1506 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1507 out->p_buffer[15] = ( (i*i_max) )&0xff;
1508 memcpy( &out->p_buffer[16], p_data, i_payload );
1510 out->i_buffer = 16 + i_payload;
1511 out->i_dts = in->i_dts + i * in->i_length / i_count;
1512 out->i_length = in->i_length / i_count;
1514 rtp_packetize_send( id, out );
1516 p_data += i_payload;
1517 i_data -= i_payload;
1524 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1527 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1528 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1530 uint8_t *p_data = in->p_buffer;
1531 int i_data = in->i_buffer;
1533 int b_sequence_start = 0;
1534 int i_temporal_ref = 0;
1535 int i_picture_coding_type = 0;
1536 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1537 int b_start_slice = 0;
1539 /* preparse this packet to get some info */
1540 if( in->i_buffer > 4 )
1542 uint8_t *p = p_data;
1543 int i_rest = in->i_buffer;
1547 while( i_rest > 4 &&
1548 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1562 /* sequence start code */
1563 b_sequence_start = 1;
1565 else if( *p == 0x00 && i_rest >= 4 )
1568 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1569 i_picture_coding_type = (p[2] >> 3)&0x07;
1571 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1572 i_picture_coding_type == 3 ) )
1574 i_ffv = (p[3] >> 2)&0x01;
1575 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1576 if( i_rest > 4 && i_picture_coding_type == 3 )
1578 i_fbv = (p[4]>>6)&0x01;
1579 i_bfc = (p[4]>>3)&0x07;
1583 else if( *p <= 0xaf )
1590 for( i = 0; i < i_count; i++ )
1592 int i_payload = __MIN( i_max, i_data );
1593 block_t *out = block_New( p_stream,
1595 uint32_t h = ( i_temporal_ref << 16 )|
1596 ( b_sequence_start << 13 )|
1597 ( b_start_slice << 12 )|
1598 ( i == i_count - 1 ? 1 << 11 : 0 )|
1599 ( i_picture_coding_type << 8 )|
1600 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1602 /* rtp common header */
1603 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1604 in->i_pts > 0 ? in->i_pts : in->i_dts );
1606 /* 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 */
1607 out->p_buffer[12] = ( h >> 24 )&0xff;
1608 out->p_buffer[13] = ( h >> 16 )&0xff;
1609 out->p_buffer[14] = ( h >> 8 )&0xff;
1610 out->p_buffer[15] = ( h )&0xff;
1612 memcpy( &out->p_buffer[16], p_data, i_payload );
1614 out->i_buffer = 16 + i_payload;
1615 out->i_dts = in->i_dts + i * in->i_length / i_count;
1616 out->i_length = in->i_length / i_count;
1618 rtp_packetize_send( id, out );
1620 p_data += i_payload;
1621 i_data -= i_payload;
1627 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1630 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1631 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1633 uint8_t *p_data = in->p_buffer;
1634 int i_data = in->i_buffer;
1637 for( i = 0; i < i_count; i++ )
1639 int i_payload = __MIN( i_max, i_data );
1640 block_t *out = block_New( p_stream, 14 + i_payload );
1642 /* rtp common header */
1643 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1645 out->p_buffer[12] = 1;
1647 out->p_buffer[13] = 0x00;
1649 memcpy( &out->p_buffer[14], p_data, i_payload );
1651 out->i_buffer = 14 + i_payload;
1652 out->i_dts = in->i_dts + i * in->i_length / i_count;
1653 out->i_length = in->i_length / i_count;
1655 rtp_packetize_send( id, out );
1657 p_data += i_payload;
1658 i_data -= i_payload;
1664 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1667 int i_max = id->i_mtu - 12; /* payload max in one packet */
1668 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1670 uint8_t *p_data = in->p_buffer;
1671 int i_data = in->i_buffer;
1674 for( i = 0; i < i_count; i++ )
1676 int i_payload = __MIN( i_max, i_data );
1677 block_t *out = block_New( p_stream, 12 + i_payload );
1679 /* rtp common header */
1680 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1681 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1682 memcpy( &out->p_buffer[12], p_data, i_payload );
1684 out->i_buffer = 12 + i_payload;
1685 out->i_dts = in->i_dts + i * in->i_length / i_count;
1686 out->i_length = in->i_length / i_count;
1688 rtp_packetize_send( id, out );
1690 p_data += i_payload;
1691 i_data -= i_payload;
1698 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1701 int i_max = id->i_mtu - 14; /* payload max in one packet */
1702 int latmhdrsize = in->i_buffer / 0xff + 1;
1703 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1705 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1706 int i_data = in->i_buffer;
1709 for( i = 0; i < i_count; i++ )
1711 int i_payload = __MIN( i_max, i_data );
1716 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1718 /* rtp common header */
1719 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1720 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1724 int tmp = in->i_buffer;
1726 p_header=out->p_buffer+12;
1736 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1738 out->i_buffer = 12 + latmhdrsize + i_payload;
1739 out->i_dts = in->i_dts + i * in->i_length / i_count;
1740 out->i_length = in->i_length / i_count;
1742 rtp_packetize_send( id, out );
1744 p_data += i_payload;
1745 i_data -= i_payload;
1751 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1754 int i_max = id->i_mtu - 12; /* payload max in one packet */
1755 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1757 uint8_t *p_data = in->p_buffer;
1758 int i_data = in->i_buffer;
1763 int i_payload = (__MIN( i_max, i_data )/4)*4;
1764 block_t *out = block_New( p_stream, 12 + i_payload );
1766 /* rtp common header */
1767 rtp_packetize_common( id, out, 0,
1768 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1769 memcpy( &out->p_buffer[12], p_data, i_payload );
1771 out->i_buffer = 12 + i_payload;
1772 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1773 out->i_length = in->i_length / i_count;
1775 rtp_packetize_send( id, out );
1777 p_data += i_payload;
1778 i_data -= i_payload;
1785 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1788 int i_max = id->i_mtu - 12; /* payload max in one packet */
1789 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1791 uint8_t *p_data = in->p_buffer;
1792 int i_data = in->i_buffer;
1797 int i_payload = (__MIN( i_max, i_data )/2)*2;
1798 block_t *out = block_New( p_stream, 12 + i_payload );
1800 /* rtp common header */
1801 rtp_packetize_common( id, out, 0,
1802 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1803 memcpy( &out->p_buffer[12], p_data, i_payload );
1805 out->i_buffer = 12 + i_payload;
1806 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1807 out->i_length = in->i_length / i_count;
1809 rtp_packetize_send( id, out );
1811 p_data += i_payload;
1812 i_data -= i_payload;
1818 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1821 int i_max = id->i_mtu - 16; /* payload max in one packet */
1822 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1824 uint8_t *p_data = in->p_buffer;
1825 int i_data = in->i_buffer;
1828 for( i = 0; i < i_count; i++ )
1830 int i_payload = __MIN( i_max, i_data );
1831 block_t *out = block_New( p_stream, 16 + i_payload );
1833 /* rtp common header */
1834 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1835 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1837 /* AU headers length (bits) */
1838 out->p_buffer[12] = 0;
1839 out->p_buffer[13] = 2*8;
1840 /* for each AU length 13 bits + idx 3bits, */
1841 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1842 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1844 memcpy( &out->p_buffer[16], p_data, i_payload );
1846 out->i_buffer = 16 + i_payload;
1847 out->i_dts = in->i_dts + i * in->i_length / i_count;
1848 out->i_length = in->i_length / i_count;
1850 rtp_packetize_send( id, out );
1852 p_data += i_payload;
1853 i_data -= i_payload;
1861 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1862 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1863 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1866 uint8_t *p_data = in->p_buffer;
1867 int i_data = in->i_buffer;
1869 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1872 int b_v_bit = 0; // no pesky error resilience
1873 int i_plen = 0; // normally plen=0 for PSC packet
1874 int i_pebit = 0; // because plen=0
1879 return VLC_EGENERIC;
1881 if( p_data[0] || p_data[1] )
1883 return VLC_EGENERIC;
1885 /* remove 2 leading 0 bytes */
1888 i_count = ( i_data + i_max - 1 ) / i_max;
1890 for( i = 0; i < i_count; i++ )
1892 int i_payload = __MIN( i_max, i_data );
1893 block_t *out = block_New( p_stream,
1894 RTP_H263_PAYLOAD_START + i_payload );
1895 b_p_bit = (i == 0) ? 1 : 0;
1896 h = ( b_p_bit << 10 )|
1901 /* rtp common header */
1902 //b_m_bit = 1; // always contains end of frame
1903 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1904 in->i_pts > 0 ? in->i_pts : in->i_dts );
1907 out->p_buffer[12] = ( h >> 8 )&0xff;
1908 out->p_buffer[13] = ( h )&0xff;
1909 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1911 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1912 out->i_dts = in->i_dts + i * in->i_length / i_count;
1913 out->i_length = in->i_length / i_count;
1915 rtp_packetize_send( id, out );
1917 p_data += i_payload;
1918 i_data -= i_payload;
1925 static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1926 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 )
1928 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1935 i_nal_hdr = p_data[3];
1936 i_nal_type = i_nal_hdr&0x1f;
1937 if( i_nal_type == 7 || i_nal_type == 8 )
1939 /* XXX Why do you want to remove them ? It will break streaming with
1940 * SPS/PPS change (broadcast) ? */
1944 /* Skip start code */
1949 if( i_data <= i_max )
1951 /* Single NAL unit packet */
1952 block_t *out = block_New( p_stream, 12 + i_data );
1954 out->i_length = i_length;
1957 rtp_packetize_common( id, out, b_last, i_pts );
1958 out->i_buffer = 12 + i_data;
1960 memcpy( &out->p_buffer[12], p_data, i_data );
1962 rtp_packetize_send( id, out );
1966 /* FU-A Fragmentation Unit without interleaving */
1967 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1973 for( i = 0; i < i_count; i++ )
1975 const int i_payload = __MIN( i_data, i_max-2 );
1976 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1977 out->i_dts = i_dts + i * i_length / i_count;
1978 out->i_length = i_length / i_count;
1981 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1982 out->i_buffer = 14 + i_payload;
1985 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1987 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1988 memcpy( &out->p_buffer[14], p_data, i_payload );
1990 rtp_packetize_send( id, out );
1992 i_data -= i_payload;
1993 p_data += i_payload;
1999 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
2002 const uint8_t *p_buffer = in->p_buffer;
2003 int i_buffer = in->i_buffer;
2005 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
2011 /* Split nal units */
2012 while( i_buffer > 4 )
2015 int i_size = i_buffer;
2016 int i_skip = i_buffer;
2018 /* search nal end */
2019 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
2021 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
2023 /* we found another startcode */
2024 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
2029 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
2030 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
2031 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
2032 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2040 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2043 int i_max = id->i_mtu - 14; /* payload max in one packet */
2044 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2046 uint8_t *p_data = in->p_buffer;
2047 int i_data = in->i_buffer;
2050 /* Only supports octet-aligned mode */
2051 for( i = 0; i < i_count; i++ )
2053 int i_payload = __MIN( i_max, i_data );
2054 block_t *out = block_New( p_stream, 14 + i_payload );
2056 /* rtp common header */
2057 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2058 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2059 /* Payload header */
2060 out->p_buffer[12] = 0xF0; /* CMR */
2061 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2063 /* FIXME: are we fed multiple frames ? */
2064 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2066 out->i_buffer = 14 + i_payload-1;
2067 out->i_dts = in->i_dts + i * in->i_length / i_count;
2068 out->i_length = in->i_length / i_count;
2070 rtp_packetize_send( id, out );
2072 p_data += i_payload;
2073 i_data -= i_payload;