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 *****************************************************************************/
37 #include <vlc_block.h>
39 #include <vlc_httpd.h>
41 #include <vlc_network.h>
42 #include <vlc_charset.h>
43 #include <vlc_strings.h>
47 /*****************************************************************************
49 *****************************************************************************/
51 #define DST_TEXT N_("Destination")
52 #define DST_LONGTEXT N_( \
53 "This is the output URL that will be used." )
54 #define SDP_TEXT N_("SDP")
55 #define SDP_LONGTEXT N_( \
56 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
57 "session will be made available. You must use an url: http://location to " \
58 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
59 "for the SDP to be announced via SAP." )
60 #define MUX_TEXT N_("Muxer")
61 #define MUX_LONGTEXT N_( \
62 "This allows you to specify the muxer used for the streaming output. " \
63 "Default is to use no muxer (standard RTP stream)." )
65 #define NAME_TEXT N_("Session name")
66 #define NAME_LONGTEXT N_( \
67 "This is the name of the session that will be announced in the SDP " \
68 "(Session Descriptor)." )
69 #define DESC_TEXT N_("Session description")
70 #define DESC_LONGTEXT N_( \
71 "This allows you to give a broader description of the stream, that will " \
72 "be announced in the SDP (Session Descriptor)." )
73 #define URL_TEXT N_("Session URL")
74 #define URL_LONGTEXT N_( \
75 "This allows you to give an URL with more details about the stream " \
76 "(often the website of the streaming organization), that will " \
77 "be announced in the SDP (Session Descriptor)." )
78 #define EMAIL_TEXT N_("Session email")
79 #define EMAIL_LONGTEXT N_( \
80 "This allows you to give a contact mail address for the stream, that will " \
81 "be announced in the SDP (Session Descriptor)." )
82 #define PORT_TEXT N_("Port")
83 #define PORT_LONGTEXT N_( \
84 "This allows you to specify the base port for the RTP streaming." )
85 #define PORT_AUDIO_TEXT N_("Audio port")
86 #define PORT_AUDIO_LONGTEXT N_( \
87 "This allows you to specify the default audio port for the RTP streaming." )
88 #define PORT_VIDEO_TEXT N_("Video port")
89 #define PORT_VIDEO_LONGTEXT N_( \
90 "This allows you to specify the default video port for the RTP streaming." )
92 #define TTL_TEXT N_("Hop limit (TTL)")
93 #define TTL_LONGTEXT N_( \
94 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
95 "the multicast packets sent by the stream output (0 = use operating " \
96 "system built-in default).")
98 #define RFC3016_TEXT N_("MP4A LATM")
99 #define RFC3016_LONGTEXT N_( \
100 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
102 static int Open ( vlc_object_t * );
103 static void Close( vlc_object_t * );
105 #define SOUT_CFG_PREFIX "sout-rtp-"
108 set_shortname( _("RTP"));
109 set_description( _("RTP stream output") );
110 set_capability( "sout stream", 0 );
111 add_shortcut( "rtp" );
112 set_category( CAT_SOUT );
113 set_subcategory( SUBCAT_SOUT_STREAM );
115 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
116 DST_LONGTEXT, VLC_TRUE );
117 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
118 SDP_LONGTEXT, VLC_TRUE );
119 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
120 MUX_LONGTEXT, VLC_TRUE );
122 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
123 NAME_LONGTEXT, VLC_TRUE );
124 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
125 DESC_LONGTEXT, VLC_TRUE );
126 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
127 URL_LONGTEXT, VLC_TRUE );
128 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
129 EMAIL_LONGTEXT, VLC_TRUE );
131 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
132 PORT_LONGTEXT, VLC_TRUE );
133 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
134 PORT_AUDIO_LONGTEXT, VLC_TRUE );
135 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
136 PORT_VIDEO_LONGTEXT, VLC_TRUE );
138 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
139 TTL_LONGTEXT, VLC_TRUE );
141 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
142 RFC3016_LONGTEXT, VLC_FALSE );
144 set_callbacks( Open, Close );
147 /*****************************************************************************
148 * Exported prototypes
149 *****************************************************************************/
150 static const char *ppsz_sout_options[] = {
151 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
152 "description", "url","email", "mp4a-latm", NULL
155 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
156 static int Del ( sout_stream_t *, sout_stream_id_t * );
157 static int Send( sout_stream_t *, sout_stream_id_t *,
159 static sout_stream_id_t *MuxAdd ( sout_stream_t *, es_format_t * );
160 static int MuxDel ( sout_stream_t *, sout_stream_id_t * );
161 static int MuxSend( sout_stream_t *, sout_stream_id_t *,
164 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
166 static void SDPHandleUrl( sout_stream_t *, char * );
168 static int SapSetup( sout_stream_t *p_stream );
169 static int FileSetup( sout_stream_t *p_stream );
170 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
172 struct sout_stream_sys_t
178 vlc_mutex_t lock_sdp;
180 char *psz_session_name;
181 char *psz_session_description;
182 char *psz_session_url;
183 char *psz_session_email;
186 vlc_bool_t b_export_sdp_file;
189 vlc_bool_t b_export_sap;
190 session_descriptor_t *p_session;
192 httpd_host_t *p_httpd_host;
193 httpd_file_t *p_httpd_file;
198 char *psz_destination;
205 /* when need to use a private one or when using muxer */
208 /* in case we do TS/PS over rtp */
210 sout_access_out_t *p_grab;
216 sout_stream_id_t **es;
219 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
222 struct sout_stream_id_t
224 sout_stream_t *p_stream;
226 uint32_t i_timestamp_start;
228 uint8_t i_payload_type;
239 /* Packetizer specific fields */
240 pf_rtp_packetizer_t pf_packetize;
243 /* for sending the packets */
244 sout_access_out_t *p_access;
246 vlc_mutex_t lock_sink;
248 sout_access_out_t **sink;
249 rtsp_stream_id_t *rtsp_id;
253 /*****************************************************************************
255 *****************************************************************************/
256 static int Open( vlc_object_t *p_this )
258 sout_stream_t *p_stream = (sout_stream_t*)p_this;
259 sout_instance_t *p_sout = p_stream->p_sout;
260 sout_stream_sys_t *p_sys = NULL;
261 config_chain_t *p_cfg = NULL;
263 vlc_bool_t b_rtsp = VLC_FALSE;
265 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
266 ppsz_sout_options, p_stream->p_cfg );
268 p_sys = malloc( sizeof( sout_stream_sys_t ) );
272 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
273 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
274 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
275 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
276 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
278 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
279 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
280 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
282 p_sys->psz_sdp_file = NULL;
284 if( p_sys->i_port_audio == p_sys->i_port_video )
286 msg_Err( p_stream, "audio and video port cannot be the same" );
287 p_sys->i_port_audio = 0;
288 p_sys->i_port_video = 0;
291 if( !p_sys->psz_session_name )
293 if( p_sys->psz_destination )
294 p_sys->psz_session_name = strdup( p_sys->psz_destination );
296 p_sys->psz_session_name = strdup( "NONE" );
299 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
301 if( !strcmp( p_cfg->psz_name, "sdp" ) )
303 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
312 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
315 if( !strncasecmp( psz, "rtsp", 4 ) )
321 if( p_sys->psz_destination == NULL )
325 msg_Err( p_stream, "missing destination and not in rtsp mode" );
330 else if( p_sys->i_port <= 0 )
332 msg_Err( p_stream, "invalid port" );
337 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
338 if( p_sys->i_ttl == 0 )
340 /* Normally, we should let the default hop limit up to the core,
341 * but we have to know it to build our SDP properly, which is why
342 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
344 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
346 if( p_sys->i_ttl > 255 )
348 /* must not exceed 999 once formatted */
350 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
352 p_sys->i_payload_type = 96;
356 p_sys->psz_sdp = NULL;
358 p_sys->i_sdp_id = mdate();
359 p_sys->i_sdp_version = 1;
360 p_sys->psz_sdp = NULL;
362 p_sys->b_export_sap = VLC_FALSE;
363 p_sys->b_export_sdp_file = VLC_FALSE;
364 p_sys->p_session = NULL;
366 p_sys->p_httpd_host = NULL;
367 p_sys->p_httpd_file = NULL;
369 p_stream->p_sys = p_sys;
371 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "mux" );
374 sout_access_out_t *p_grab;
375 sout_stream_id_t *id;
377 p_stream->pf_add = MuxAdd;
378 p_stream->pf_del = MuxDel;
379 p_stream->pf_send = MuxSend;
381 id = malloc( sizeof( *id ) );
383 /* We have one and only one "ES" from RTP perspective */
384 TAB_APPEND( p_sys->i_es, p_sys->es, id );
386 //p_sys->pr_rtp_packetizer = abort;
387 id->p_stream = p_stream;
389 vlc_mutex_init( p_stream, &id->lock_sink );
394 /* Check muxer type */
395 if( !strncasecmp( psz, "ps", 2 )
396 || !strncasecmp( psz, "mpeg1", 5 ) )
398 id->psz_rtpmap = strdup( "MP2P/90000" );
399 id->i_payload_type = p_sys->i_payload_type++;
401 else if( !strncasecmp( psz, "ts", 2 ) )
403 id->psz_rtpmap = strdup( "MP2T/90000" );
404 id->i_payload_type = 33;
408 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
414 id->i_clock_rate = 90000;
416 id->i_port = p_sys->i_port;
417 id->i_cat = VIDEO_ES;
420 /* create the access out */
421 if( p_sys->psz_destination == NULL )
425 char url[NI_MAXHOST + 8], access[22];
427 if( p_sys->i_ttl > 0 )
428 sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl );
430 strcat( access, "udp{raw,rtcp}" );
432 /* IPv6 needs brackets if not already present */
433 if (strchr( p_sys->psz_destination, ':' ) != NULL )
434 snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination,
437 snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination,
440 id->p_access = sout_AccessOutNew( p_sout, access, url );
441 if( id->p_access == NULL )
443 msg_Err( p_stream, "cannot create the access out for %s://%s",
451 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
452 if( id->i_mtu <= 12 + 16 )
454 /* better than nothing */
455 id->i_mtu = 576 - 20 - 8;
458 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
459 p_grab = p_sys->p_grab =
460 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
461 p_grab->p_module = NULL;
462 p_grab->p_sout = p_sout;
463 p_grab->psz_access = strdup( "grab" );
464 p_grab->p_cfg = NULL;
465 p_grab->psz_path = strdup( "" );
466 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
467 p_grab->pf_seek = NULL;
468 p_grab->pf_write = AccessOutGrabberWrite;
471 if( !( p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab ) ) )
473 msg_Err( p_stream, "cannot create the muxer (%s)", psz );
474 sout_AccessOutDelete( p_sys->p_grab );
475 sout_AccessOutDelete( id->p_access );
481 /* create the SDP for a muxed stream (only once) */
482 p_sys->psz_sdp = SDPGenerate( p_stream, NULL );
483 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
485 /* create the rtp context */
486 id->ssrc[0] = rand()&0xff;
487 id->ssrc[1] = rand()&0xff;
488 id->ssrc[2] = rand()&0xff;
489 id->ssrc[3] = rand()&0xff;
490 id->i_sequence = rand()&0xffff;
491 id->i_timestamp_start = rand()&0xffffffff;
492 p_sys->packet = NULL;
498 p_stream->pf_add = Add;
499 p_stream->pf_del = Del;
500 p_stream->pf_send = Send;
503 p_sys->p_grab = NULL;
506 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
507 vlc_mutex_init( p_stream, &p_sys->lock_es );
509 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
512 config_chain_t *p_cfg;
514 SDPHandleUrl( p_stream, psz );
516 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
518 if( !strcmp( p_cfg->psz_name, "sdp" ) )
520 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
523 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
524 if( !strcmp( p_cfg->psz_value, psz ) )
527 SDPHandleUrl( p_stream, p_cfg->psz_value );
533 /* update p_sout->i_out_pace_nocontrol */
534 p_stream->p_sout->i_out_pace_nocontrol++;
539 /*****************************************************************************
541 *****************************************************************************/
542 static void Close( vlc_object_t * p_this )
544 sout_stream_t *p_stream = (sout_stream_t*)p_this;
545 sout_stream_sys_t *p_sys = p_stream->p_sys;
547 /* update p_sout->i_out_pace_nocontrol */
548 p_stream->p_sout->i_out_pace_nocontrol--;
552 assert( p_sys->i_es == 1 );
553 Del( p_stream, p_sys->es[0] );
556 sout_MuxDelete( p_sys->p_mux );
557 sout_AccessOutDelete( p_sys->p_grab );
560 block_Release( p_sys->packet );
562 if( p_sys->b_export_sap )
565 SapSetup( p_stream );
569 if( p_sys->rtsp != NULL )
570 RtspUnsetup( p_sys->rtsp );
572 vlc_mutex_destroy( &p_sys->lock_sdp );
573 vlc_mutex_destroy( &p_sys->lock_es );
575 if( p_sys->p_httpd_file )
576 httpd_FileDelete( p_sys->p_httpd_file );
578 if( p_sys->p_httpd_host )
579 httpd_HostDelete( p_sys->p_httpd_host );
581 free( p_sys->psz_session_name );
582 free( p_sys->psz_session_description );
583 free( p_sys->psz_session_url );
584 free( p_sys->psz_session_email );
585 free( p_sys->psz_sdp );
587 if( p_sys->b_export_sdp_file )
590 unlink( p_sys->psz_sdp_file );
592 free( p_sys->psz_sdp_file );
594 free( p_sys->psz_destination );
598 /*****************************************************************************
600 *****************************************************************************/
601 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
603 sout_stream_sys_t *p_sys = p_stream->p_sys;
606 vlc_UrlParse( &url, psz_url, 0 );
607 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
609 if( p_sys->p_httpd_file )
611 msg_Err( p_stream, "you can use sdp=http:// only once" );
615 if( HttpSetup( p_stream, &url ) )
617 msg_Err( p_stream, "cannot export SDP as HTTP" );
620 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
622 if( p_sys->rtsp != NULL )
624 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
628 /* FIXME test if destination is multicast or no destination at all FIXME */
629 p_sys->rtsp = RtspSetup( p_stream, &url );
630 if( p_sys->rtsp == NULL )
632 msg_Err( p_stream, "cannot export SDP as RTSP" );
635 if( p_sys->p_mux != NULL )
637 sout_stream_id_t *id = p_sys->es[0];
638 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0,
639 p_sys->psz_destination, p_sys->i_ttl,
640 id->i_port, id->i_port + 1 );
643 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
644 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
646 p_sys->b_export_sap = VLC_TRUE;
647 SapSetup( p_stream );
649 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
651 if( p_sys->b_export_sdp_file )
653 msg_Err( p_stream, "you can use sdp=file:// only once" );
656 p_sys->b_export_sdp_file = VLC_TRUE;
657 psz_url = &psz_url[5];
658 if( psz_url[0] == '/' && psz_url[1] == '/' )
660 p_sys->psz_sdp_file = strdup( psz_url );
664 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
669 vlc_UrlClean( &url );
672 /*****************************************************************************
674 *****************************************************************************/
675 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
676 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
677 o= - should be local username (no spaces allowed)
678 o= time should be hashed with some other value to garantue uniqueness
679 o= we need IP6 support?
680 o= don't use the localhost address. use fully qualified domain name or IP4 address
681 p= international phone number (pass via vars?)
683 a= recvonly (missing)
684 a= type:broadcast (missing)
685 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
686 a= x-plgroup: (missing)
687 RTP packets need to get the correct src IP address */
689 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
691 const sout_stream_sys_t *p_sys = p_stream->p_sys;
693 const char *psz_destination = p_sys->psz_destination;
694 char *psz_sdp, *p, ipv;
697 * When we have a fixed destination (typically when we do multicast),
698 * we need to put the actual port numbers in the SDP.
699 * When there is no fixed destination, we only support RTSP unicast
700 * on-demand setup, so we should rather let the clients decide which ports
702 * When there is both a fixed destination and RTSP unicast, we need to
703 * put port numbers used by the fixed destination, otherwise the SDP would
704 * become totally incorrect for multicast use. It should be noted that
705 * port numbers from SDP with RTSP are only "recommendation" from the
706 * server to the clients (per RFC2326), so only broken clients will fail
707 * to handle this properly. There is no solution but to use two differents
708 * output chain with two different RTSP URLs if you need to handle this
711 int inclport = (psz_destination != NULL);
713 /* FIXME: breaks IP version check on unknown destination */
714 if( psz_destination == NULL )
715 psz_destination = "0.0.0.0";
717 i_size = sizeof( "v=0\r\n" ) +
718 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
719 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
720 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
721 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
722 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
723 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
724 sizeof( "b=RR:0\r\n" ) +
725 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
726 sizeof( "a=recvonly\r\n" ) +
727 sizeof( "a=type:broadcast\r\n" ) +
728 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
729 strlen( psz_destination ) ;
730 for( i = 0; i < p_sys->i_es; i++ )
732 sout_stream_id_t *id = p_sys->es[i];
734 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
737 i_size += strlen( "b=AS: *\r\n") + 10;
741 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
745 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
747 if( rtsp_url != NULL )
749 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( rtsp_url ) + 10;
753 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
755 p = psz_sdp = malloc( i_size );
756 p += sprintf( p, "v=0\r\n" );
757 p += sprintf( p, "o=- "I64Fu" %d IN IP%c %s\r\n",
758 p_sys->i_sdp_id, p_sys->i_sdp_version,
759 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
760 if( *p_sys->psz_session_name )
761 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
762 if( *p_sys->psz_session_description )
763 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
764 if( *p_sys->psz_session_url )
765 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
766 if( *p_sys->psz_session_email )
767 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
769 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
770 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
771 p += sprintf( p, "a=recvonly\r\n" );
772 p += sprintf( p, "a=type:broadcast\r\n" );
774 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
777 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
779 /* Add the deprecated TTL field if it is an IPv4 multicast address */
780 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
782 p += sprintf( p, "\r\n" );
783 p += sprintf( p, "b=RR:0\r\n" );
785 for( i = 0; i < p_sys->i_es; i++ )
787 sout_stream_id_t *id = p_sys->es[i];
788 const char *mime_major; /* major MIME type */
790 if( id->i_cat == AUDIO_ES )
791 mime_major = "audio";
793 if( id->i_cat == VIDEO_ES )
794 mime_major = "video";
798 p += sprintf( p, "m=%s %d RTP/AVP %d\r\n", mime_major,
799 inclport * id->i_port, id->i_payload_type );
803 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
807 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
812 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
815 if( rtsp_url != NULL )
817 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
824 /*****************************************************************************
826 *****************************************************************************/
827 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
828 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
829 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
830 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
831 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
832 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
833 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
834 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
835 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
836 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
837 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
839 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
841 static const char hex[16] = "0123456789abcdef";
844 for( i = 0; i < i_data; i++ )
846 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
847 s[2*i+1] = hex[(p_data[i] )&0xf];
853 /** Add an ES as a new RTP stream */
854 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
856 sout_instance_t *p_sout = p_stream->p_sout;
857 sout_stream_sys_t *p_sys = p_stream->p_sys;
858 sout_stream_id_t *id;
859 sout_access_out_t *p_access;
863 assert( p_sys->p_mux == NULL );
865 /* Choose the port */
867 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
869 i_port = p_sys->i_port_audio;
870 p_sys->i_port_audio = 0;
872 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
874 i_port = p_sys->i_port_video;
875 p_sys->i_port_video = 0;
879 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
881 i_port = p_sys->i_port;
888 if( p_sys->psz_destination == NULL )
893 char url[NI_MAXHOST + 8];
895 /* first try to create the access out */
896 if( p_sys->i_ttl > 0 )
898 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
900 access[sizeof( access ) - 1] = '\0';
903 strcpy( access, "udp{raw,rtcp}" );
905 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
906 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
907 p_sys->psz_destination, i_port );
908 url[sizeof( url ) - 1] = '\0';
910 p_access = sout_AccessOutNew( p_sout, access, url );
911 if( p_access == NULL )
913 msg_Err( p_stream, "cannot create the access out for %s://%s",
917 msg_Dbg( p_stream, "access out %s:%s", access, url );
920 /* not create the rtp specific stuff */
921 id = malloc( sizeof( sout_stream_id_t ) );
922 memset( id, 0, sizeof( sout_stream_id_t ) );
923 id->p_stream = p_stream;
924 id->p_access = p_access;
925 id->psz_rtpmap = NULL;
930 vlc_mutex_init( p_stream, &id->lock_sink );
934 switch( p_fmt->i_codec )
936 case VLC_FOURCC( 's', '1', '6', 'b' ):
937 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
939 id->i_payload_type = 11;
941 else if( p_fmt->audio.i_channels == 2 &&
942 p_fmt->audio.i_rate == 44100 )
944 id->i_payload_type = 10;
948 id->i_payload_type = p_sys->i_payload_type++;
950 asprintf( &id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
951 p_fmt->audio.i_channels );
952 id->i_clock_rate = p_fmt->audio.i_rate;
953 id->pf_packetize = rtp_packetize_l16;
955 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
956 id->i_payload_type = p_sys->i_payload_type++;
957 asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
958 p_fmt->audio.i_channels );
959 id->i_clock_rate = p_fmt->audio.i_rate;
960 id->pf_packetize = rtp_packetize_l8;
962 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
963 id->i_payload_type = 14;
964 id->i_clock_rate = 90000;
965 id->psz_rtpmap = strdup( "MPA/90000" );
966 id->pf_packetize = rtp_packetize_mpa;
968 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
969 id->i_payload_type = 32;
970 id->i_clock_rate = 90000;
971 id->psz_rtpmap = strdup( "MPV/90000" );
972 id->pf_packetize = rtp_packetize_mpv;
974 case VLC_FOURCC( 'a', '5', '2', ' ' ):
975 id->i_payload_type = p_sys->i_payload_type++;
976 id->i_clock_rate = 90000;
977 id->psz_rtpmap = strdup( "ac3/90000" );
978 id->pf_packetize = rtp_packetize_ac3;
980 case VLC_FOURCC( 'H', '2', '6', '3' ):
981 id->i_payload_type = p_sys->i_payload_type++;
982 id->i_clock_rate = 90000;
983 id->psz_rtpmap = strdup( "H263-1998/90000" );
984 id->pf_packetize = rtp_packetize_h263;
986 case VLC_FOURCC( 'h', '2', '6', '4' ):
987 id->i_payload_type = p_sys->i_payload_type++;
988 id->i_clock_rate = 90000;
989 id->psz_rtpmap = strdup( "H264/90000" );
990 id->pf_packetize = rtp_packetize_h264;
993 if( p_fmt->i_extra > 0 )
995 uint8_t *p_buffer = p_fmt->p_extra;
996 int i_buffer = p_fmt->i_extra;
997 char *p_64_sps = NULL;
998 char *p_64_pps = NULL;
1001 while( i_buffer > 4 &&
1002 p_buffer[0] == 0 && p_buffer[1] == 0 &&
1003 p_buffer[2] == 0 && p_buffer[3] == 1 )
1005 const int i_nal_type = p_buffer[4]&0x1f;
1009 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1012 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1014 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1016 /* we found another startcode */
1021 if( i_nal_type == 7 )
1023 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1024 sprintf_hexa( hexa, &p_buffer[5], 3 );
1026 else if( i_nal_type == 8 )
1028 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1034 if( p_64_sps && p_64_pps )
1035 asprintf( &id->psz_fmtp,
1036 "packetization-mode=1;profile-level-id=%s;"
1037 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1045 id->psz_fmtp = strdup( "packetization-mode=1" );
1048 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1050 char hexa[2*p_fmt->i_extra +1];
1052 id->i_payload_type = p_sys->i_payload_type++;
1053 id->i_clock_rate = 90000;
1054 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1055 id->pf_packetize = rtp_packetize_split;
1056 if( p_fmt->i_extra > 0 )
1058 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1059 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1060 sprintf( id->psz_fmtp,
1061 "profile-level-id=3; config=%s;", hexa );
1065 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1067 id->i_payload_type = p_sys->i_payload_type++;
1068 id->i_clock_rate = p_fmt->audio.i_rate;
1072 char hexa[2*p_fmt->i_extra +1];
1074 asprintf( &id->psz_rtpmap, "mpeg4-generic/%d",
1075 p_fmt->audio.i_rate );
1076 id->pf_packetize = rtp_packetize_mp4a;
1077 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1078 asprintf( &id->psz_fmtp,
1079 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1080 "config=%s; SizeLength=13;IndexLength=3; "
1081 "IndexDeltaLength=3; Profile=1;", hexa );
1087 unsigned char config[6];
1088 unsigned int aacsrates[15] = {
1089 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1090 16000, 12000, 11025, 8000, 7350, 0, 0 };
1092 for( i = 0; i < 15; i++ )
1093 if( p_fmt->audio.i_rate == aacsrates[i] )
1099 config[3]=p_fmt->audio.i_channels<<4;
1103 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1104 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1105 id->pf_packetize = rtp_packetize_mp4a_latm;
1106 sprintf_hexa( hexa, config, 6 );
1107 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1108 "object=2; cpresent=0; config=%s", hexa );
1112 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1113 id->i_payload_type = p_sys->i_payload_type++;
1114 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1115 "AMR/8000/2" : "AMR/8000" );
1116 id->psz_fmtp = strdup( "octet-align=1" );
1117 id->i_clock_rate = p_fmt->audio.i_rate;
1118 id->pf_packetize = rtp_packetize_amr;
1120 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1121 id->i_payload_type = p_sys->i_payload_type++;
1122 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1123 "AMR-WB/16000/2" : "AMR-WB/16000" );
1124 id->psz_fmtp = strdup( "octet-align=1" );
1125 id->i_clock_rate = p_fmt->audio.i_rate;
1126 id->pf_packetize = rtp_packetize_amr;
1130 msg_Err( p_stream, "cannot add this stream (unsupported "
1131 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1134 sout_AccessOutDelete( p_access );
1139 id->i_cat = p_fmt->i_cat;
1141 id->ssrc[0] = rand()&0xff;
1142 id->ssrc[1] = rand()&0xff;
1143 id->ssrc[2] = rand()&0xff;
1144 id->ssrc[3] = rand()&0xff;
1145 id->i_sequence = rand()&0xffff;
1146 id->i_timestamp_start = rand()&0xffffffff;
1147 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1149 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1150 if( id->i_mtu <= 12 + 16 )
1152 /* better than nothing */
1153 id->i_mtu = 576 - 20 - 8;
1155 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1157 if( p_sys->rtsp != NULL )
1158 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1159 p_sys->psz_destination,
1160 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1162 /* Update p_sys context */
1163 vlc_mutex_lock( &p_sys->lock_es );
1164 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1165 vlc_mutex_unlock( &p_sys->lock_es );
1167 psz_sdp = SDPGenerate( p_stream, NULL );
1169 vlc_mutex_lock( &p_sys->lock_sdp );
1170 free( p_sys->psz_sdp );
1171 p_sys->psz_sdp = psz_sdp;
1172 vlc_mutex_unlock( &p_sys->lock_sdp );
1174 p_sys->i_sdp_version++;
1176 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1178 /* Update SDP (sap/file) */
1179 if( p_sys->b_export_sap ) SapSetup( p_stream );
1180 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1185 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1187 sout_stream_sys_t *p_sys = p_stream->p_sys;
1189 vlc_mutex_lock( &p_sys->lock_es );
1190 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1191 vlc_mutex_unlock( &p_sys->lock_es );
1194 if( id->i_port > 0 )
1196 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1197 p_sys->i_port_audio = id->i_port;
1198 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1199 p_sys->i_port_video = id->i_port;
1204 if( id->psz_rtpmap )
1206 free( id->psz_rtpmap );
1210 free( id->psz_fmtp );
1212 sout_AccessOutDelete( id->p_access );
1216 RtspDelId( p_sys->rtsp, id->rtsp_id );
1218 vlc_mutex_destroy( &id->lock_sink );
1221 /* Update SDP (sap/file) */
1222 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1223 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1229 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1234 assert( p_stream->p_sys->p_mux == NULL );
1236 while( p_buffer != NULL )
1238 p_next = p_buffer->p_next;
1239 if( id->pf_packetize( p_stream, id, p_buffer ) )
1242 block_Release( p_buffer );
1248 /****************************************************************************
1250 ****************************************************************************/
1251 static int SapSetup( sout_stream_t *p_stream )
1253 sout_stream_sys_t *p_sys = p_stream->p_sys;
1254 sout_instance_t *p_sout = p_stream->p_sout;
1255 announce_method_t *p_method = sout_SAPMethod();
1257 /* Remove the previous session */
1258 if( p_sys->p_session != NULL)
1260 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1261 sout_AnnounceSessionDestroy( p_sys->p_session );
1262 p_sys->p_session = NULL;
1265 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1267 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1269 p_sys->psz_destination,
1273 sout_MethodRelease( p_method );
1277 /****************************************************************************
1279 ****************************************************************************/
1280 static int FileSetup( sout_stream_t *p_stream )
1282 sout_stream_sys_t *p_sys = p_stream->p_sys;
1285 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1287 msg_Err( p_stream, "cannot open file '%s' (%s)",
1288 p_sys->psz_sdp_file, strerror(errno) );
1289 return VLC_EGENERIC;
1292 fputs( p_sys->psz_sdp, f );
1298 /****************************************************************************
1300 ****************************************************************************/
1301 static int HttpCallback( httpd_file_sys_t *p_args,
1302 httpd_file_t *, uint8_t *p_request,
1303 uint8_t **pp_data, int *pi_data );
1305 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1307 sout_stream_sys_t *p_sys = p_stream->p_sys;
1309 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1310 if( p_sys->p_httpd_host )
1312 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1313 url->psz_path ? url->psz_path : "/",
1316 HttpCallback, (void*)p_sys );
1318 if( p_sys->p_httpd_file == NULL )
1320 return VLC_EGENERIC;
1325 static int HttpCallback( httpd_file_sys_t *p_args,
1326 httpd_file_t *f, uint8_t *p_request,
1327 uint8_t **pp_data, int *pi_data )
1329 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1331 vlc_mutex_lock( &p_sys->lock_sdp );
1332 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1334 *pi_data = strlen( p_sys->psz_sdp );
1335 *pp_data = malloc( *pi_data );
1336 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1343 vlc_mutex_unlock( &p_sys->lock_sdp );
1348 /****************************************************************************
1350 ****************************************************************************/
1351 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1352 int b_marker, int64_t i_pts )
1354 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1356 out->p_buffer[0] = 0x80;
1357 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1358 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1359 out->p_buffer[3] = ( id->i_sequence )&0xff;
1360 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1361 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1362 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1363 out->p_buffer[7] = ( i_timestamp )&0xff;
1365 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1371 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1374 vlc_mutex_lock( &id->lock_sink );
1375 for( i = 0; i < id->i_sink; i++ )
1377 sout_AccessOutWrite( id->sink[i], block_Duplicate( out ) );
1379 vlc_mutex_unlock( &id->lock_sink );
1383 sout_AccessOutWrite( id->p_access, out );
1387 block_Release( out );
1391 int rtp_add_sink( sout_stream_id_t *id, sout_access_out_t *access )
1393 vlc_mutex_lock( &id->lock_sink );
1394 TAB_APPEND( id->i_sink, id->sink, access );
1395 vlc_mutex_unlock( &id->lock_sink );
1399 void rtp_del_sink( sout_stream_id_t *id, sout_access_out_t *access )
1401 /* NOTE: must be safe to use if access is not a sink to id */
1402 vlc_mutex_lock( &id->lock_sink );
1403 TAB_REMOVE( id->i_sink, id->sink, access );
1404 vlc_mutex_unlock( &id->lock_sink );
1407 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1410 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1411 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1413 uint8_t *p_data = in->p_buffer;
1414 int i_data = in->i_buffer;
1417 for( i = 0; i < i_count; i++ )
1419 int i_payload = __MIN( i_max, i_data );
1420 block_t *out = block_New( p_stream, 16 + i_payload );
1422 /* rtp common header */
1423 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1425 out->p_buffer[12] = 0;
1426 out->p_buffer[13] = 0;
1427 /* fragment offset in the current frame */
1428 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1429 out->p_buffer[15] = ( (i*i_max) )&0xff;
1430 memcpy( &out->p_buffer[16], p_data, i_payload );
1432 out->i_buffer = 16 + i_payload;
1433 out->i_dts = in->i_dts + i * in->i_length / i_count;
1434 out->i_length = in->i_length / i_count;
1436 rtp_packetize_send( id, out );
1438 p_data += i_payload;
1439 i_data -= i_payload;
1446 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1449 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1450 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1452 uint8_t *p_data = in->p_buffer;
1453 int i_data = in->i_buffer;
1455 int b_sequence_start = 0;
1456 int i_temporal_ref = 0;
1457 int i_picture_coding_type = 0;
1458 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1459 int b_start_slice = 0;
1461 /* preparse this packet to get some info */
1462 if( in->i_buffer > 4 )
1464 uint8_t *p = p_data;
1465 int i_rest = in->i_buffer;
1469 while( i_rest > 4 &&
1470 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1484 /* sequence start code */
1485 b_sequence_start = 1;
1487 else if( *p == 0x00 && i_rest >= 4 )
1490 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1491 i_picture_coding_type = (p[2] >> 3)&0x07;
1493 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1494 i_picture_coding_type == 3 ) )
1496 i_ffv = (p[3] >> 2)&0x01;
1497 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1498 if( i_rest > 4 && i_picture_coding_type == 3 )
1500 i_fbv = (p[4]>>6)&0x01;
1501 i_bfc = (p[4]>>3)&0x07;
1505 else if( *p <= 0xaf )
1512 for( i = 0; i < i_count; i++ )
1514 int i_payload = __MIN( i_max, i_data );
1515 block_t *out = block_New( p_stream,
1517 uint32_t h = ( i_temporal_ref << 16 )|
1518 ( b_sequence_start << 13 )|
1519 ( b_start_slice << 12 )|
1520 ( i == i_count - 1 ? 1 << 11 : 0 )|
1521 ( i_picture_coding_type << 8 )|
1522 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1524 /* rtp common header */
1525 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1526 in->i_pts > 0 ? in->i_pts : in->i_dts );
1528 /* 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 */
1529 out->p_buffer[12] = ( h >> 24 )&0xff;
1530 out->p_buffer[13] = ( h >> 16 )&0xff;
1531 out->p_buffer[14] = ( h >> 8 )&0xff;
1532 out->p_buffer[15] = ( h )&0xff;
1534 memcpy( &out->p_buffer[16], p_data, i_payload );
1536 out->i_buffer = 16 + i_payload;
1537 out->i_dts = in->i_dts + i * in->i_length / i_count;
1538 out->i_length = in->i_length / i_count;
1540 rtp_packetize_send( id, out );
1542 p_data += i_payload;
1543 i_data -= i_payload;
1549 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1552 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1553 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1555 uint8_t *p_data = in->p_buffer;
1556 int i_data = in->i_buffer;
1559 for( i = 0; i < i_count; i++ )
1561 int i_payload = __MIN( i_max, i_data );
1562 block_t *out = block_New( p_stream, 14 + i_payload );
1564 /* rtp common header */
1565 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1567 out->p_buffer[12] = 1;
1569 out->p_buffer[13] = 0x00;
1571 memcpy( &out->p_buffer[14], p_data, i_payload );
1573 out->i_buffer = 14 + i_payload;
1574 out->i_dts = in->i_dts + i * in->i_length / i_count;
1575 out->i_length = in->i_length / i_count;
1577 rtp_packetize_send( id, out );
1579 p_data += i_payload;
1580 i_data -= i_payload;
1586 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1589 int i_max = id->i_mtu - 12; /* payload max in one packet */
1590 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1592 uint8_t *p_data = in->p_buffer;
1593 int i_data = in->i_buffer;
1596 for( i = 0; i < i_count; i++ )
1598 int i_payload = __MIN( i_max, i_data );
1599 block_t *out = block_New( p_stream, 12 + i_payload );
1601 /* rtp common header */
1602 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1603 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1604 memcpy( &out->p_buffer[12], p_data, i_payload );
1606 out->i_buffer = 12 + i_payload;
1607 out->i_dts = in->i_dts + i * in->i_length / i_count;
1608 out->i_length = in->i_length / i_count;
1610 rtp_packetize_send( id, out );
1612 p_data += i_payload;
1613 i_data -= i_payload;
1620 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1623 int i_max = id->i_mtu - 14; /* payload max in one packet */
1624 int latmhdrsize = in->i_buffer / 0xff + 1;
1625 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1627 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1628 int i_data = in->i_buffer;
1631 for( i = 0; i < i_count; i++ )
1633 int i_payload = __MIN( i_max, i_data );
1638 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1640 /* rtp common header */
1641 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1642 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1646 int tmp = in->i_buffer;
1648 p_header=out->p_buffer+12;
1658 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1660 out->i_buffer = 12 + latmhdrsize + i_payload;
1661 out->i_dts = in->i_dts + i * in->i_length / i_count;
1662 out->i_length = in->i_length / i_count;
1664 rtp_packetize_send( id, out );
1666 p_data += i_payload;
1667 i_data -= i_payload;
1673 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1676 int i_max = id->i_mtu - 12; /* payload max in one packet */
1677 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1679 uint8_t *p_data = in->p_buffer;
1680 int i_data = in->i_buffer;
1685 int i_payload = (__MIN( i_max, i_data )/4)*4;
1686 block_t *out = block_New( p_stream, 12 + i_payload );
1688 /* rtp common header */
1689 rtp_packetize_common( id, out, 0,
1690 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1691 memcpy( &out->p_buffer[12], p_data, i_payload );
1693 out->i_buffer = 12 + i_payload;
1694 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1695 out->i_length = in->i_length / i_count;
1697 rtp_packetize_send( id, out );
1699 p_data += i_payload;
1700 i_data -= i_payload;
1707 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1710 int i_max = id->i_mtu - 12; /* payload max in one packet */
1711 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1713 uint8_t *p_data = in->p_buffer;
1714 int i_data = in->i_buffer;
1719 int i_payload = (__MIN( i_max, i_data )/2)*2;
1720 block_t *out = block_New( p_stream, 12 + i_payload );
1722 /* rtp common header */
1723 rtp_packetize_common( id, out, 0,
1724 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1725 memcpy( &out->p_buffer[12], p_data, i_payload );
1727 out->i_buffer = 12 + i_payload;
1728 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1729 out->i_length = in->i_length / i_count;
1731 rtp_packetize_send( id, out );
1733 p_data += i_payload;
1734 i_data -= i_payload;
1741 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1744 int i_max = id->i_mtu - 16; /* payload max in one packet */
1745 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1747 uint8_t *p_data = in->p_buffer;
1748 int i_data = in->i_buffer;
1751 for( i = 0; i < i_count; i++ )
1753 int i_payload = __MIN( i_max, i_data );
1754 block_t *out = block_New( p_stream, 16 + i_payload );
1756 /* rtp common header */
1757 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1758 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1760 /* AU headers length (bits) */
1761 out->p_buffer[12] = 0;
1762 out->p_buffer[13] = 2*8;
1763 /* for each AU length 13 bits + idx 3bits, */
1764 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1765 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1767 memcpy( &out->p_buffer[16], p_data, i_payload );
1769 out->i_buffer = 16 + i_payload;
1770 out->i_dts = in->i_dts + i * in->i_length / i_count;
1771 out->i_length = in->i_length / i_count;
1773 rtp_packetize_send( id, out );
1775 p_data += i_payload;
1776 i_data -= i_payload;
1784 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1785 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1786 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1789 uint8_t *p_data = in->p_buffer;
1790 int i_data = in->i_buffer;
1792 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1795 int b_v_bit = 0; // no pesky error resilience
1796 int i_plen = 0; // normally plen=0 for PSC packet
1797 int i_pebit = 0; // because plen=0
1802 return VLC_EGENERIC;
1804 if( p_data[0] || p_data[1] )
1806 return VLC_EGENERIC;
1808 /* remove 2 leading 0 bytes */
1811 i_count = ( i_data + i_max - 1 ) / i_max;
1813 for( i = 0; i < i_count; i++ )
1815 int i_payload = __MIN( i_max, i_data );
1816 block_t *out = block_New( p_stream,
1817 RTP_H263_PAYLOAD_START + i_payload );
1818 b_p_bit = (i == 0) ? 1 : 0;
1819 h = ( b_p_bit << 10 )|
1824 /* rtp common header */
1825 //b_m_bit = 1; // always contains end of frame
1826 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1827 in->i_pts > 0 ? in->i_pts : in->i_dts );
1830 out->p_buffer[12] = ( h >> 8 )&0xff;
1831 out->p_buffer[13] = ( h )&0xff;
1832 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1834 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1835 out->i_dts = in->i_dts + i * in->i_length / i_count;
1836 out->i_length = in->i_length / i_count;
1838 rtp_packetize_send( id, out );
1840 p_data += i_payload;
1841 i_data -= i_payload;
1849 rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1850 const uint8_t *p_data, int i_data, int64_t i_pts,
1851 int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1853 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1860 i_nal_hdr = p_data[3];
1861 i_nal_type = i_nal_hdr&0x1f;
1862 if( i_nal_type == 7 || i_nal_type == 8 )
1864 /* XXX Why do you want to remove them ? It will break streaming with
1865 * SPS/PPS change (broadcast) ? */
1869 /* Skip start code */
1874 if( i_data <= i_max )
1876 /* Single NAL unit packet */
1877 block_t *out = block_New( p_stream, 12 + i_data );
1879 out->i_length = i_length;
1882 rtp_packetize_common( id, out, b_last, i_pts );
1883 out->i_buffer = 12 + i_data;
1885 memcpy( &out->p_buffer[12], p_data, i_data );
1887 rtp_packetize_send( id, out );
1891 /* FU-A Fragmentation Unit without interleaving */
1892 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1898 for( i = 0; i < i_count; i++ )
1900 const int i_payload = __MIN( i_data, i_max-2 );
1901 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1902 out->i_dts = i_dts + i * i_length / i_count;
1903 out->i_length = i_length / i_count;
1906 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1907 out->i_buffer = 14 + i_payload;
1910 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1912 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1913 memcpy( &out->p_buffer[14], p_data, i_payload );
1915 rtp_packetize_send( id, out );
1917 i_data -= i_payload;
1918 p_data += i_payload;
1924 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1927 const uint8_t *p_buffer = in->p_buffer;
1928 int i_buffer = in->i_buffer;
1930 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
1936 /* Split nal units */
1937 while( i_buffer > 4 )
1940 int i_size = i_buffer;
1941 int i_skip = i_buffer;
1943 /* search nal end */
1944 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
1946 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
1948 /* we found another startcode */
1949 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
1954 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
1955 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
1956 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
1957 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
1965 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
1968 int i_max = id->i_mtu - 14; /* payload max in one packet */
1969 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1971 uint8_t *p_data = in->p_buffer;
1972 int i_data = in->i_buffer;
1975 /* Only supports octet-aligned mode */
1976 for( i = 0; i < i_count; i++ )
1978 int i_payload = __MIN( i_max, i_data );
1979 block_t *out = block_New( p_stream, 14 + i_payload );
1981 /* rtp common header */
1982 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1983 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1984 /* Payload header */
1985 out->p_buffer[12] = 0xF0; /* CMR */
1986 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
1988 /* FIXME: are we fed multiple frames ? */
1989 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
1991 out->i_buffer = 14 + i_payload-1;
1992 out->i_dts = in->i_dts + i * in->i_length / i_count;
1993 out->i_length = in->i_length / i_count;
1995 rtp_packetize_send( id, out );
1997 p_data += i_payload;
1998 i_data -= i_payload;
2004 /*****************************************************************************
2006 *****************************************************************************/
2008 /** Add an ES to a non-RTP muxed stream */
2009 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
2011 sout_input_t *p_input;
2012 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2013 assert( p_mux != NULL );
2015 p_input = sout_MuxAddStream( p_mux, p_fmt );
2016 if( p_input == NULL )
2018 msg_Err( p_stream, "cannot add this stream to the muxer" );
2022 return (sout_stream_id_t *)p_input;
2026 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
2029 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2030 assert( p_mux != NULL );
2032 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
2037 /** Remove an ES from a non-RTP muxed stream */
2038 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
2040 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2041 assert( p_mux != NULL );
2043 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
2048 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
2049 const block_t *p_buffer )
2051 sout_stream_sys_t *p_sys = p_stream->p_sys;
2052 sout_stream_id_t *id = p_sys->es[0];
2054 int64_t i_dts = p_buffer->i_dts;
2056 uint8_t *p_data = p_buffer->p_buffer;
2057 unsigned int i_data = p_buffer->i_buffer;
2058 unsigned int i_max = id->i_mtu - 12;
2060 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
2064 unsigned int i_size;
2066 /* output complete packet */
2067 if( p_sys->packet &&
2068 p_sys->packet->i_buffer + i_data > i_max )
2070 rtp_packetize_send( id, p_sys->packet );
2071 p_sys->packet = NULL;
2074 if( p_sys->packet == NULL )
2076 /* allocate a new packet */
2077 p_sys->packet = block_New( p_stream, id->i_mtu );
2078 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
2079 p_sys->packet->i_dts = i_dts;
2080 p_sys->packet->i_length = p_buffer->i_length / i_packet;
2081 i_dts += p_sys->packet->i_length;
2086 i_size = __MIN( i_data,
2087 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
2089 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
2092 p_sys->packet->i_buffer += i_size;
2101 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
2104 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
2110 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
2112 p_next = p_buffer->p_next;
2113 block_Release( p_buffer );