1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
5 * Copyright © 2007 Rémi Denis-Courmont
8 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc_block.h>
33 #include <vlc_httpd.h>
35 #include <vlc_network.h>
36 #include <vlc_charset.h>
37 #include <vlc_strings.h>
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 sout_access_out_t *GrabberCreate( sout_stream_t *p_sout );
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;
244 sout_access_out_t *p_access;
246 vlc_mutex_t lock_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 /* TODO: factorize code with Add() */
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 strcpy( 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 p_sys->p_grab = GrabberCreate( p_stream );
461 if( !( p_sys->p_mux = sout_MuxNew( p_sout, psz, p_sys->p_grab ) ) )
463 msg_Err( p_stream, "cannot create the muxer (%s)", psz );
464 sout_AccessOutDelete( p_sys->p_grab );
465 sout_AccessOutDelete( id->p_access );
471 /* create the SDP for a muxed stream (only once) */
472 p_sys->psz_sdp = SDPGenerate( p_stream, NULL );
473 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
475 /* create the rtp context */
476 id->ssrc[0] = rand()&0xff;
477 id->ssrc[1] = rand()&0xff;
478 id->ssrc[2] = rand()&0xff;
479 id->ssrc[3] = rand()&0xff;
480 id->i_sequence = rand()&0xffff;
481 id->i_timestamp_start = rand()&0xffffffff;
482 p_sys->packet = NULL;
488 p_stream->pf_add = Add;
489 p_stream->pf_del = Del;
490 p_stream->pf_send = Send;
493 p_sys->p_grab = NULL;
496 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
497 vlc_mutex_init( p_stream, &p_sys->lock_es );
499 psz = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "sdp" );
502 config_chain_t *p_cfg;
504 SDPHandleUrl( p_stream, psz );
506 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
508 if( !strcmp( p_cfg->psz_name, "sdp" ) )
510 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
513 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
514 if( !strcmp( p_cfg->psz_value, psz ) )
517 SDPHandleUrl( p_stream, p_cfg->psz_value );
523 /* update p_sout->i_out_pace_nocontrol */
524 p_stream->p_sout->i_out_pace_nocontrol++;
529 /*****************************************************************************
531 *****************************************************************************/
532 static void Close( vlc_object_t * p_this )
534 sout_stream_t *p_stream = (sout_stream_t*)p_this;
535 sout_stream_sys_t *p_sys = p_stream->p_sys;
537 /* update p_sout->i_out_pace_nocontrol */
538 p_stream->p_sout->i_out_pace_nocontrol--;
542 assert( p_sys->i_es == 1 );
543 Del( p_stream, p_sys->es[0] );
546 sout_MuxDelete( p_sys->p_mux );
547 sout_AccessOutDelete( p_sys->p_grab );
550 block_Release( p_sys->packet );
552 if( p_sys->b_export_sap )
555 SapSetup( p_stream );
559 if( p_sys->rtsp != NULL )
560 RtspUnsetup( p_sys->rtsp );
562 vlc_mutex_destroy( &p_sys->lock_sdp );
563 vlc_mutex_destroy( &p_sys->lock_es );
565 if( p_sys->p_httpd_file )
566 httpd_FileDelete( p_sys->p_httpd_file );
568 if( p_sys->p_httpd_host )
569 httpd_HostDelete( p_sys->p_httpd_host );
571 free( p_sys->psz_session_name );
572 free( p_sys->psz_session_description );
573 free( p_sys->psz_session_url );
574 free( p_sys->psz_session_email );
575 free( p_sys->psz_sdp );
577 if( p_sys->b_export_sdp_file )
580 unlink( p_sys->psz_sdp_file );
582 free( p_sys->psz_sdp_file );
584 free( p_sys->psz_destination );
588 /*****************************************************************************
590 *****************************************************************************/
591 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
593 sout_stream_sys_t *p_sys = p_stream->p_sys;
596 vlc_UrlParse( &url, psz_url, 0 );
597 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
599 if( p_sys->p_httpd_file )
601 msg_Err( p_stream, "you can use sdp=http:// only once" );
605 if( HttpSetup( p_stream, &url ) )
607 msg_Err( p_stream, "cannot export SDP as HTTP" );
610 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
612 if( p_sys->rtsp != NULL )
614 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
618 /* FIXME test if destination is multicast or no destination at all FIXME */
619 p_sys->rtsp = RtspSetup( p_stream, &url );
620 if( p_sys->rtsp == NULL )
622 msg_Err( p_stream, "cannot export SDP as RTSP" );
625 if( p_sys->p_mux != NULL )
627 sout_stream_id_t *id = p_sys->es[0];
628 id->rtsp_id = RtspAddId( p_sys->rtsp, id, 0,
629 p_sys->psz_destination, p_sys->i_ttl,
630 id->i_port, id->i_port + 1 );
633 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
634 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
636 p_sys->b_export_sap = VLC_TRUE;
637 SapSetup( p_stream );
639 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
641 if( p_sys->b_export_sdp_file )
643 msg_Err( p_stream, "you can use sdp=file:// only once" );
646 p_sys->b_export_sdp_file = VLC_TRUE;
647 psz_url = &psz_url[5];
648 if( psz_url[0] == '/' && psz_url[1] == '/' )
650 p_sys->psz_sdp_file = strdup( psz_url );
654 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
659 vlc_UrlClean( &url );
662 /*****************************************************************************
664 *****************************************************************************/
665 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
666 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
667 o= - should be local username (no spaces allowed)
668 o= time should be hashed with some other value to garantue uniqueness
669 o= we need IP6 support?
670 o= don't use the localhost address. use fully qualified domain name or IP4 address
671 p= international phone number (pass via vars?)
673 a= recvonly (missing)
674 a= type:broadcast (missing)
675 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
676 a= x-plgroup: (missing)
677 RTP packets need to get the correct src IP address */
679 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
681 const sout_stream_sys_t *p_sys = p_stream->p_sys;
683 const char *psz_destination = p_sys->psz_destination;
684 char *psz_sdp, *p, ipv;
687 * When we have a fixed destination (typically when we do multicast),
688 * we need to put the actual port numbers in the SDP.
689 * When there is no fixed destination, we only support RTSP unicast
690 * on-demand setup, so we should rather let the clients decide which ports
692 * When there is both a fixed destination and RTSP unicast, we need to
693 * put port numbers used by the fixed destination, otherwise the SDP would
694 * become totally incorrect for multicast use. It should be noted that
695 * port numbers from SDP with RTSP are only "recommendation" from the
696 * server to the clients (per RFC2326), so only broken clients will fail
697 * to handle this properly. There is no solution but to use two differents
698 * output chain with two different RTSP URLs if you need to handle this
701 int inclport = (psz_destination != NULL);
703 /* FIXME: breaks IP version check on unknown destination */
704 if( psz_destination == NULL )
705 psz_destination = "0.0.0.0";
707 i_size = sizeof( "v=0\r\n" ) +
708 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
709 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
710 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
711 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
712 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
713 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
714 sizeof( "b=RR:0\r\n" ) +
715 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
716 sizeof( "a=recvonly\r\n" ) +
717 sizeof( "a=type:broadcast\r\n" ) +
718 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
719 strlen( psz_destination ) ;
720 for( i = 0; i < p_sys->i_es; i++ )
722 sout_stream_id_t *id = p_sys->es[i];
724 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
727 i_size += strlen( "b=AS: *\r\n") + 10;
731 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
735 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
737 if( rtsp_url != NULL )
739 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( rtsp_url ) + 10;
743 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
745 p = psz_sdp = malloc( i_size );
746 p += sprintf( p, "v=0\r\n" );
747 p += sprintf( p, "o=- "I64Fu" %d IN IP%c %s\r\n",
748 p_sys->i_sdp_id, p_sys->i_sdp_version,
749 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
750 if( *p_sys->psz_session_name )
751 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
752 if( *p_sys->psz_session_description )
753 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
754 if( *p_sys->psz_session_url )
755 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
756 if( *p_sys->psz_session_email )
757 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
759 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
760 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
761 p += sprintf( p, "a=recvonly\r\n" );
762 p += sprintf( p, "a=type:broadcast\r\n" );
764 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
767 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
769 /* Add the deprecated TTL field if it is an IPv4 multicast address */
770 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
772 p += sprintf( p, "\r\n" );
773 p += sprintf( p, "b=RR:0\r\n" );
775 for( i = 0; i < p_sys->i_es; i++ )
777 sout_stream_id_t *id = p_sys->es[i];
778 const char *mime_major; /* major MIME type */
780 if( id->i_cat == AUDIO_ES )
781 mime_major = "audio";
783 if( id->i_cat == VIDEO_ES )
784 mime_major = "video";
788 p += sprintf( p, "m=%s %d RTP/AVP %d\r\n", mime_major,
789 inclport * id->i_port, id->i_payload_type );
793 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
797 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
802 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
805 if( rtsp_url != NULL )
807 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
814 /*****************************************************************************
816 *****************************************************************************/
817 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
818 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
819 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
820 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
821 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
822 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
823 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
824 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
825 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
826 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
827 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
829 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
831 static const char hex[16] = "0123456789abcdef";
834 for( i = 0; i < i_data; i++ )
836 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
837 s[2*i+1] = hex[(p_data[i] )&0xf];
843 /** Add an ES as a new RTP stream */
844 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
846 sout_instance_t *p_sout = p_stream->p_sout;
847 sout_stream_sys_t *p_sys = p_stream->p_sys;
848 sout_stream_id_t *id;
849 sout_access_out_t *p_access;
853 assert( p_sys->p_mux == NULL );
855 /* Choose the port */
857 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
859 i_port = p_sys->i_port_audio;
860 p_sys->i_port_audio = 0;
862 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
864 i_port = p_sys->i_port_video;
865 p_sys->i_port_video = 0;
869 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
871 i_port = p_sys->i_port;
878 if( p_sys->psz_destination == NULL )
883 char url[NI_MAXHOST + 8];
885 /* first try to create the access out */
886 if( p_sys->i_ttl > 0 )
888 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
890 access[sizeof( access ) - 1] = '\0';
893 strcpy( access, "udp{raw,rtcp}" );
895 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
896 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
897 p_sys->psz_destination, i_port );
898 url[sizeof( url ) - 1] = '\0';
900 p_access = sout_AccessOutNew( p_sout, access, url );
901 if( p_access == NULL )
903 msg_Err( p_stream, "cannot create the access out for %s://%s",
907 msg_Dbg( p_stream, "access out %s:%s", access, url );
910 /* not create the rtp specific stuff */
911 id = malloc( sizeof( sout_stream_id_t ) );
912 memset( id, 0, sizeof( sout_stream_id_t ) );
913 id->p_stream = p_stream;
914 id->p_access = p_access;
915 id->psz_rtpmap = NULL;
920 vlc_mutex_init( p_stream, &id->lock_sink );
924 switch( p_fmt->i_codec )
926 case VLC_FOURCC( 's', '1', '6', 'b' ):
927 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
929 id->i_payload_type = 11;
931 else if( p_fmt->audio.i_channels == 2 &&
932 p_fmt->audio.i_rate == 44100 )
934 id->i_payload_type = 10;
938 id->i_payload_type = p_sys->i_payload_type++;
940 asprintf( &id->psz_rtpmap, "L16/%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_l16;
945 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
946 id->i_payload_type = p_sys->i_payload_type++;
947 asprintf( &id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
948 p_fmt->audio.i_channels );
949 id->i_clock_rate = p_fmt->audio.i_rate;
950 id->pf_packetize = rtp_packetize_l8;
952 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
953 id->i_payload_type = 14;
954 id->i_clock_rate = 90000;
955 id->psz_rtpmap = strdup( "MPA/90000" );
956 id->pf_packetize = rtp_packetize_mpa;
958 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
959 id->i_payload_type = 32;
960 id->i_clock_rate = 90000;
961 id->psz_rtpmap = strdup( "MPV/90000" );
962 id->pf_packetize = rtp_packetize_mpv;
964 case VLC_FOURCC( 'a', '5', '2', ' ' ):
965 id->i_payload_type = p_sys->i_payload_type++;
966 id->i_clock_rate = 90000;
967 id->psz_rtpmap = strdup( "ac3/90000" );
968 id->pf_packetize = rtp_packetize_ac3;
970 case VLC_FOURCC( 'H', '2', '6', '3' ):
971 id->i_payload_type = p_sys->i_payload_type++;
972 id->i_clock_rate = 90000;
973 id->psz_rtpmap = strdup( "H263-1998/90000" );
974 id->pf_packetize = rtp_packetize_h263;
976 case VLC_FOURCC( 'h', '2', '6', '4' ):
977 id->i_payload_type = p_sys->i_payload_type++;
978 id->i_clock_rate = 90000;
979 id->psz_rtpmap = strdup( "H264/90000" );
980 id->pf_packetize = rtp_packetize_h264;
983 if( p_fmt->i_extra > 0 )
985 uint8_t *p_buffer = p_fmt->p_extra;
986 int i_buffer = p_fmt->i_extra;
987 char *p_64_sps = NULL;
988 char *p_64_pps = NULL;
991 while( i_buffer > 4 &&
992 p_buffer[0] == 0 && p_buffer[1] == 0 &&
993 p_buffer[2] == 0 && p_buffer[3] == 1 )
995 const int i_nal_type = p_buffer[4]&0x1f;
999 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1002 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1004 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1006 /* we found another startcode */
1011 if( i_nal_type == 7 )
1013 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1014 sprintf_hexa( hexa, &p_buffer[5], 3 );
1016 else if( i_nal_type == 8 )
1018 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1024 if( p_64_sps && p_64_pps )
1025 asprintf( &id->psz_fmtp,
1026 "packetization-mode=1;profile-level-id=%s;"
1027 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
1035 id->psz_fmtp = strdup( "packetization-mode=1" );
1038 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1040 char hexa[2*p_fmt->i_extra +1];
1042 id->i_payload_type = p_sys->i_payload_type++;
1043 id->i_clock_rate = 90000;
1044 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1045 id->pf_packetize = rtp_packetize_split;
1046 if( p_fmt->i_extra > 0 )
1048 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1049 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1050 sprintf( id->psz_fmtp,
1051 "profile-level-id=3; config=%s;", hexa );
1055 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1057 id->i_payload_type = p_sys->i_payload_type++;
1058 id->i_clock_rate = p_fmt->audio.i_rate;
1062 char hexa[2*p_fmt->i_extra +1];
1064 asprintf( &id->psz_rtpmap, "mpeg4-generic/%d",
1065 p_fmt->audio.i_rate );
1066 id->pf_packetize = rtp_packetize_mp4a;
1067 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1068 asprintf( &id->psz_fmtp,
1069 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1070 "config=%s; SizeLength=13;IndexLength=3; "
1071 "IndexDeltaLength=3; Profile=1;", hexa );
1077 unsigned char config[6];
1078 unsigned int aacsrates[15] = {
1079 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1080 16000, 12000, 11025, 8000, 7350, 0, 0 };
1082 for( i = 0; i < 15; i++ )
1083 if( p_fmt->audio.i_rate == aacsrates[i] )
1089 config[3]=p_fmt->audio.i_channels<<4;
1093 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1094 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1095 id->pf_packetize = rtp_packetize_mp4a_latm;
1096 sprintf_hexa( hexa, config, 6 );
1097 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1098 "object=2; cpresent=0; config=%s", hexa );
1102 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1103 id->i_payload_type = p_sys->i_payload_type++;
1104 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1105 "AMR/8000/2" : "AMR/8000" );
1106 id->psz_fmtp = strdup( "octet-align=1" );
1107 id->i_clock_rate = p_fmt->audio.i_rate;
1108 id->pf_packetize = rtp_packetize_amr;
1110 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1111 id->i_payload_type = p_sys->i_payload_type++;
1112 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1113 "AMR-WB/16000/2" : "AMR-WB/16000" );
1114 id->psz_fmtp = strdup( "octet-align=1" );
1115 id->i_clock_rate = p_fmt->audio.i_rate;
1116 id->pf_packetize = rtp_packetize_amr;
1120 msg_Err( p_stream, "cannot add this stream (unsupported "
1121 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1124 sout_AccessOutDelete( p_access );
1129 id->i_cat = p_fmt->i_cat;
1131 id->ssrc[0] = rand()&0xff;
1132 id->ssrc[1] = rand()&0xff;
1133 id->ssrc[2] = rand()&0xff;
1134 id->ssrc[3] = rand()&0xff;
1135 id->i_sequence = rand()&0xffff;
1136 id->i_timestamp_start = rand()&0xffffffff;
1137 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1139 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1140 if( id->i_mtu <= 12 + 16 )
1142 /* better than nothing */
1143 id->i_mtu = 576 - 20 - 8;
1145 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1147 if( p_sys->rtsp != NULL )
1148 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1149 p_sys->psz_destination,
1150 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1152 /* Update p_sys context */
1153 vlc_mutex_lock( &p_sys->lock_es );
1154 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1155 vlc_mutex_unlock( &p_sys->lock_es );
1157 psz_sdp = SDPGenerate( p_stream, NULL );
1159 vlc_mutex_lock( &p_sys->lock_sdp );
1160 free( p_sys->psz_sdp );
1161 p_sys->psz_sdp = psz_sdp;
1162 vlc_mutex_unlock( &p_sys->lock_sdp );
1164 p_sys->i_sdp_version++;
1166 msg_Dbg( p_stream, "sdp=\n%s", p_sys->psz_sdp );
1168 /* Update SDP (sap/file) */
1169 if( p_sys->b_export_sap ) SapSetup( p_stream );
1170 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1175 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1177 sout_stream_sys_t *p_sys = p_stream->p_sys;
1179 vlc_mutex_lock( &p_sys->lock_es );
1180 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1181 vlc_mutex_unlock( &p_sys->lock_es );
1184 if( id->i_port > 0 )
1186 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1187 p_sys->i_port_audio = id->i_port;
1188 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1189 p_sys->i_port_video = id->i_port;
1194 if( id->psz_rtpmap )
1196 free( id->psz_rtpmap );
1200 free( id->psz_fmtp );
1202 sout_AccessOutDelete( id->p_access );
1206 RtspDelId( p_sys->rtsp, id->rtsp_id );
1208 vlc_mutex_destroy( &id->lock_sink );
1211 /* Update SDP (sap/file) */
1212 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1213 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1219 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1224 assert( p_stream->p_sys->p_mux == NULL );
1226 while( p_buffer != NULL )
1228 p_next = p_buffer->p_next;
1229 if( id->pf_packetize( p_stream, id, p_buffer ) )
1232 block_Release( p_buffer );
1238 /****************************************************************************
1240 ****************************************************************************/
1241 static int SapSetup( sout_stream_t *p_stream )
1243 sout_stream_sys_t *p_sys = p_stream->p_sys;
1244 sout_instance_t *p_sout = p_stream->p_sout;
1245 announce_method_t *p_method = sout_SAPMethod();
1247 /* Remove the previous session */
1248 if( p_sys->p_session != NULL)
1250 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1251 sout_AnnounceSessionDestroy( p_sys->p_session );
1252 p_sys->p_session = NULL;
1255 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1257 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1259 p_sys->psz_destination,
1263 sout_MethodRelease( p_method );
1267 /****************************************************************************
1269 ****************************************************************************/
1270 static int FileSetup( sout_stream_t *p_stream )
1272 sout_stream_sys_t *p_sys = p_stream->p_sys;
1275 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1277 msg_Err( p_stream, "cannot open file '%s' (%s)",
1278 p_sys->psz_sdp_file, strerror(errno) );
1279 return VLC_EGENERIC;
1282 fputs( p_sys->psz_sdp, f );
1288 /****************************************************************************
1290 ****************************************************************************/
1291 static int HttpCallback( httpd_file_sys_t *p_args,
1292 httpd_file_t *, uint8_t *p_request,
1293 uint8_t **pp_data, int *pi_data );
1295 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1297 sout_stream_sys_t *p_sys = p_stream->p_sys;
1299 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1300 if( p_sys->p_httpd_host )
1302 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1303 url->psz_path ? url->psz_path : "/",
1306 HttpCallback, (void*)p_sys );
1308 if( p_sys->p_httpd_file == NULL )
1310 return VLC_EGENERIC;
1315 static int HttpCallback( httpd_file_sys_t *p_args,
1316 httpd_file_t *f, uint8_t *p_request,
1317 uint8_t **pp_data, int *pi_data )
1319 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1321 vlc_mutex_lock( &p_sys->lock_sdp );
1322 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1324 *pi_data = strlen( p_sys->psz_sdp );
1325 *pp_data = malloc( *pi_data );
1326 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1333 vlc_mutex_unlock( &p_sys->lock_sdp );
1338 /****************************************************************************
1340 ****************************************************************************/
1341 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1342 int b_marker, int64_t i_pts )
1344 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1346 out->p_buffer[0] = 0x80;
1347 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1348 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1349 out->p_buffer[3] = ( id->i_sequence )&0xff;
1350 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1351 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1352 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1353 out->p_buffer[7] = ( i_timestamp )&0xff;
1355 memcpy( out->p_buffer + 8, id->ssrc, 4 );
1361 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1364 vlc_mutex_lock( &id->lock_sink );
1365 for( i = 0; i < id->fdc; i++ )
1367 send( id->fdv[i], out->p_buffer, out->i_buffer, 0 );
1369 vlc_mutex_unlock( &id->lock_sink );
1373 sout_AccessOutWrite( id->p_access, out );
1377 block_Release( out );
1381 int rtp_add_sink( sout_stream_id_t *id, int fd )
1383 vlc_mutex_lock( &id->lock_sink );
1384 TAB_APPEND( id->fdc, id->fdv, fd );
1385 vlc_mutex_unlock( &id->lock_sink );
1389 void rtp_del_sink( sout_stream_id_t *id, int fd )
1391 /* NOTE: must be safe to use if fd is not included */
1392 vlc_mutex_lock( &id->lock_sink );
1393 TAB_REMOVE( id->fdc, id->fdv, fd );
1394 vlc_mutex_unlock( &id->lock_sink );
1398 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1401 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1402 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1404 uint8_t *p_data = in->p_buffer;
1405 int i_data = in->i_buffer;
1408 for( i = 0; i < i_count; i++ )
1410 int i_payload = __MIN( i_max, i_data );
1411 block_t *out = block_New( p_stream, 16 + i_payload );
1413 /* rtp common header */
1414 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1416 out->p_buffer[12] = 0;
1417 out->p_buffer[13] = 0;
1418 /* fragment offset in the current frame */
1419 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1420 out->p_buffer[15] = ( (i*i_max) )&0xff;
1421 memcpy( &out->p_buffer[16], p_data, i_payload );
1423 out->i_buffer = 16 + i_payload;
1424 out->i_dts = in->i_dts + i * in->i_length / i_count;
1425 out->i_length = in->i_length / i_count;
1427 rtp_packetize_send( id, out );
1429 p_data += i_payload;
1430 i_data -= i_payload;
1437 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1440 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1441 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1443 uint8_t *p_data = in->p_buffer;
1444 int i_data = in->i_buffer;
1446 int b_sequence_start = 0;
1447 int i_temporal_ref = 0;
1448 int i_picture_coding_type = 0;
1449 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1450 int b_start_slice = 0;
1452 /* preparse this packet to get some info */
1453 if( in->i_buffer > 4 )
1455 uint8_t *p = p_data;
1456 int i_rest = in->i_buffer;
1460 while( i_rest > 4 &&
1461 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1475 /* sequence start code */
1476 b_sequence_start = 1;
1478 else if( *p == 0x00 && i_rest >= 4 )
1481 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1482 i_picture_coding_type = (p[2] >> 3)&0x07;
1484 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1485 i_picture_coding_type == 3 ) )
1487 i_ffv = (p[3] >> 2)&0x01;
1488 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1489 if( i_rest > 4 && i_picture_coding_type == 3 )
1491 i_fbv = (p[4]>>6)&0x01;
1492 i_bfc = (p[4]>>3)&0x07;
1496 else if( *p <= 0xaf )
1503 for( i = 0; i < i_count; i++ )
1505 int i_payload = __MIN( i_max, i_data );
1506 block_t *out = block_New( p_stream,
1508 uint32_t h = ( i_temporal_ref << 16 )|
1509 ( b_sequence_start << 13 )|
1510 ( b_start_slice << 12 )|
1511 ( i == i_count - 1 ? 1 << 11 : 0 )|
1512 ( i_picture_coding_type << 8 )|
1513 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1515 /* rtp common header */
1516 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1517 in->i_pts > 0 ? in->i_pts : in->i_dts );
1519 /* 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 */
1520 out->p_buffer[12] = ( h >> 24 )&0xff;
1521 out->p_buffer[13] = ( h >> 16 )&0xff;
1522 out->p_buffer[14] = ( h >> 8 )&0xff;
1523 out->p_buffer[15] = ( h )&0xff;
1525 memcpy( &out->p_buffer[16], p_data, i_payload );
1527 out->i_buffer = 16 + i_payload;
1528 out->i_dts = in->i_dts + i * in->i_length / i_count;
1529 out->i_length = in->i_length / i_count;
1531 rtp_packetize_send( id, out );
1533 p_data += i_payload;
1534 i_data -= i_payload;
1540 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1543 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1544 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1546 uint8_t *p_data = in->p_buffer;
1547 int i_data = in->i_buffer;
1550 for( i = 0; i < i_count; i++ )
1552 int i_payload = __MIN( i_max, i_data );
1553 block_t *out = block_New( p_stream, 14 + i_payload );
1555 /* rtp common header */
1556 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1558 out->p_buffer[12] = 1;
1560 out->p_buffer[13] = 0x00;
1562 memcpy( &out->p_buffer[14], p_data, i_payload );
1564 out->i_buffer = 14 + i_payload;
1565 out->i_dts = in->i_dts + i * in->i_length / i_count;
1566 out->i_length = in->i_length / i_count;
1568 rtp_packetize_send( id, out );
1570 p_data += i_payload;
1571 i_data -= i_payload;
1577 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1580 int i_max = id->i_mtu - 12; /* payload max in one packet */
1581 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1583 uint8_t *p_data = in->p_buffer;
1584 int i_data = in->i_buffer;
1587 for( i = 0; i < i_count; i++ )
1589 int i_payload = __MIN( i_max, i_data );
1590 block_t *out = block_New( p_stream, 12 + i_payload );
1592 /* rtp common header */
1593 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1594 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1595 memcpy( &out->p_buffer[12], p_data, i_payload );
1597 out->i_buffer = 12 + i_payload;
1598 out->i_dts = in->i_dts + i * in->i_length / i_count;
1599 out->i_length = in->i_length / i_count;
1601 rtp_packetize_send( id, out );
1603 p_data += i_payload;
1604 i_data -= i_payload;
1611 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1614 int i_max = id->i_mtu - 14; /* payload max in one packet */
1615 int latmhdrsize = in->i_buffer / 0xff + 1;
1616 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1618 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1619 int i_data = in->i_buffer;
1622 for( i = 0; i < i_count; i++ )
1624 int i_payload = __MIN( i_max, i_data );
1629 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1631 /* rtp common header */
1632 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1633 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1637 int tmp = in->i_buffer;
1639 p_header=out->p_buffer+12;
1649 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1651 out->i_buffer = 12 + latmhdrsize + 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_l16( 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;
1676 int i_payload = (__MIN( i_max, i_data )/4)*4;
1677 block_t *out = block_New( p_stream, 12 + i_payload );
1679 /* rtp common header */
1680 rtp_packetize_common( id, out, 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_packet * 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_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1701 int i_max = id->i_mtu - 12; /* payload max in one packet */
1702 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1704 uint8_t *p_data = in->p_buffer;
1705 int i_data = in->i_buffer;
1710 int i_payload = (__MIN( i_max, i_data )/2)*2;
1711 block_t *out = block_New( p_stream, 12 + i_payload );
1713 /* rtp common header */
1714 rtp_packetize_common( id, out, 0,
1715 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1716 memcpy( &out->p_buffer[12], p_data, i_payload );
1718 out->i_buffer = 12 + i_payload;
1719 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1720 out->i_length = in->i_length / i_count;
1722 rtp_packetize_send( id, out );
1724 p_data += i_payload;
1725 i_data -= i_payload;
1732 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1735 int i_max = id->i_mtu - 16; /* payload max in one packet */
1736 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1738 uint8_t *p_data = in->p_buffer;
1739 int i_data = in->i_buffer;
1742 for( i = 0; i < i_count; i++ )
1744 int i_payload = __MIN( i_max, i_data );
1745 block_t *out = block_New( p_stream, 16 + i_payload );
1747 /* rtp common header */
1748 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1749 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1751 /* AU headers length (bits) */
1752 out->p_buffer[12] = 0;
1753 out->p_buffer[13] = 2*8;
1754 /* for each AU length 13 bits + idx 3bits, */
1755 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1756 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1758 memcpy( &out->p_buffer[16], p_data, i_payload );
1760 out->i_buffer = 16 + i_payload;
1761 out->i_dts = in->i_dts + i * in->i_length / i_count;
1762 out->i_length = in->i_length / i_count;
1764 rtp_packetize_send( id, out );
1766 p_data += i_payload;
1767 i_data -= i_payload;
1775 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1776 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1777 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1780 uint8_t *p_data = in->p_buffer;
1781 int i_data = in->i_buffer;
1783 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1786 int b_v_bit = 0; // no pesky error resilience
1787 int i_plen = 0; // normally plen=0 for PSC packet
1788 int i_pebit = 0; // because plen=0
1793 return VLC_EGENERIC;
1795 if( p_data[0] || p_data[1] )
1797 return VLC_EGENERIC;
1799 /* remove 2 leading 0 bytes */
1802 i_count = ( i_data + i_max - 1 ) / i_max;
1804 for( i = 0; i < i_count; i++ )
1806 int i_payload = __MIN( i_max, i_data );
1807 block_t *out = block_New( p_stream,
1808 RTP_H263_PAYLOAD_START + i_payload );
1809 b_p_bit = (i == 0) ? 1 : 0;
1810 h = ( b_p_bit << 10 )|
1815 /* rtp common header */
1816 //b_m_bit = 1; // always contains end of frame
1817 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1818 in->i_pts > 0 ? in->i_pts : in->i_dts );
1821 out->p_buffer[12] = ( h >> 8 )&0xff;
1822 out->p_buffer[13] = ( h )&0xff;
1823 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1825 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1826 out->i_dts = in->i_dts + i * in->i_length / i_count;
1827 out->i_length = in->i_length / i_count;
1829 rtp_packetize_send( id, out );
1831 p_data += i_payload;
1832 i_data -= i_payload;
1840 rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1841 const uint8_t *p_data, int i_data, int64_t i_pts,
1842 int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1844 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1851 i_nal_hdr = p_data[3];
1852 i_nal_type = i_nal_hdr&0x1f;
1853 if( i_nal_type == 7 || i_nal_type == 8 )
1855 /* XXX Why do you want to remove them ? It will break streaming with
1856 * SPS/PPS change (broadcast) ? */
1860 /* Skip start code */
1865 if( i_data <= i_max )
1867 /* Single NAL unit packet */
1868 block_t *out = block_New( p_stream, 12 + i_data );
1870 out->i_length = i_length;
1873 rtp_packetize_common( id, out, b_last, i_pts );
1874 out->i_buffer = 12 + i_data;
1876 memcpy( &out->p_buffer[12], p_data, i_data );
1878 rtp_packetize_send( id, out );
1882 /* FU-A Fragmentation Unit without interleaving */
1883 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1889 for( i = 0; i < i_count; i++ )
1891 const int i_payload = __MIN( i_data, i_max-2 );
1892 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1893 out->i_dts = i_dts + i * i_length / i_count;
1894 out->i_length = i_length / i_count;
1897 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1898 out->i_buffer = 14 + i_payload;
1901 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1903 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1904 memcpy( &out->p_buffer[14], p_data, i_payload );
1906 rtp_packetize_send( id, out );
1908 i_data -= i_payload;
1909 p_data += i_payload;
1915 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1918 const uint8_t *p_buffer = in->p_buffer;
1919 int i_buffer = in->i_buffer;
1921 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
1927 /* Split nal units */
1928 while( i_buffer > 4 )
1931 int i_size = i_buffer;
1932 int i_skip = i_buffer;
1934 /* search nal end */
1935 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
1937 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
1939 /* we found another startcode */
1940 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
1945 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
1946 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
1947 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
1948 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
1956 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
1959 int i_max = id->i_mtu - 14; /* payload max in one packet */
1960 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1962 uint8_t *p_data = in->p_buffer;
1963 int i_data = in->i_buffer;
1966 /* Only supports octet-aligned mode */
1967 for( i = 0; i < i_count; i++ )
1969 int i_payload = __MIN( i_max, i_data );
1970 block_t *out = block_New( p_stream, 14 + i_payload );
1972 /* rtp common header */
1973 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1974 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1975 /* Payload header */
1976 out->p_buffer[12] = 0xF0; /* CMR */
1977 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
1979 /* FIXME: are we fed multiple frames ? */
1980 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
1982 out->i_buffer = 14 + i_payload-1;
1983 out->i_dts = in->i_dts + i * in->i_length / i_count;
1984 out->i_length = in->i_length / i_count;
1986 rtp_packetize_send( id, out );
1988 p_data += i_payload;
1989 i_data -= i_payload;
1995 /*****************************************************************************
1997 *****************************************************************************/
1999 /** Add an ES to a non-RTP muxed stream */
2000 static sout_stream_id_t *MuxAdd( sout_stream_t *p_stream, es_format_t *p_fmt )
2002 sout_input_t *p_input;
2003 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2004 assert( p_mux != NULL );
2006 p_input = sout_MuxAddStream( p_mux, p_fmt );
2007 if( p_input == NULL )
2009 msg_Err( p_stream, "cannot add this stream to the muxer" );
2013 return (sout_stream_id_t *)p_input;
2017 static int MuxSend( sout_stream_t *p_stream, sout_stream_id_t *id,
2020 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2021 assert( p_mux != NULL );
2023 sout_MuxSendBuffer( p_mux, (sout_input_t *)id, p_buffer );
2028 /** Remove an ES from a non-RTP muxed stream */
2029 static int MuxDel( sout_stream_t *p_stream, sout_stream_id_t *id )
2031 sout_mux_t *p_mux = p_stream->p_sys->p_mux;
2032 assert( p_mux != NULL );
2034 sout_MuxDeleteStream( p_mux, (sout_input_t *)id );
2039 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
2040 const block_t *p_buffer )
2042 sout_stream_sys_t *p_sys = p_stream->p_sys;
2043 sout_stream_id_t *id = p_sys->es[0];
2045 int64_t i_dts = p_buffer->i_dts;
2047 uint8_t *p_data = p_buffer->p_buffer;
2048 unsigned int i_data = p_buffer->i_buffer;
2049 unsigned int i_max = id->i_mtu - 12;
2051 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
2055 unsigned int i_size;
2057 /* output complete packet */
2058 if( p_sys->packet &&
2059 p_sys->packet->i_buffer + i_data > i_max )
2061 rtp_packetize_send( id, p_sys->packet );
2062 p_sys->packet = NULL;
2065 if( p_sys->packet == NULL )
2067 /* allocate a new packet */
2068 p_sys->packet = block_New( p_stream, id->i_mtu );
2069 rtp_packetize_common( id, p_sys->packet, 1, i_dts );
2070 p_sys->packet->i_dts = i_dts;
2071 p_sys->packet->i_length = p_buffer->i_length / i_packet;
2072 i_dts += p_sys->packet->i_length;
2075 i_size = __MIN( i_data,
2076 (unsigned)(id->i_mtu - p_sys->packet->i_buffer) );
2078 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
2081 p_sys->packet->i_buffer += i_size;
2090 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
2093 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
2099 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
2101 p_next = p_buffer->p_next;
2102 block_Release( p_buffer );
2110 static sout_access_out_t *GrabberCreate( sout_stream_t *p_stream )
2112 sout_access_out_t *p_grab;
2114 p_grab = vlc_object_create( p_stream->p_sout, sizeof( *p_grab ) );
2115 if( p_grab == NULL )
2118 p_grab->p_module = NULL;
2119 p_grab->p_sout = p_stream->p_sout;
2120 p_grab->psz_access = strdup( "grab" );
2121 p_grab->p_cfg = NULL;
2122 p_grab->psz_path = strdup( "" );
2123 p_grab->p_sys = (sout_access_out_sys_t *)p_stream;
2124 p_grab->pf_seek = NULL;
2125 p_grab->pf_write = AccessOutGrabberWrite;