1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
36 #include <vlc_block.h>
38 #include <vlc_httpd.h>
40 #include <vlc_network.h>
41 #include <vlc_charset.h>
42 #include <vlc_strings.h>
46 /*****************************************************************************
48 *****************************************************************************/
52 #define DST_TEXT N_("Destination")
53 #define DST_LONGTEXT N_( \
54 "This is the output URL that will be used." )
55 #define SDP_TEXT N_("SDP")
56 #define SDP_LONGTEXT N_( \
57 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
58 "session will be made available. You must use an url: http://location to " \
59 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
60 "for the SDP to be announced via SAP." )
61 #define MUX_TEXT N_("Muxer")
62 #define MUX_LONGTEXT N_( \
63 "This allows you to specify the muxer used for the streaming output. " \
64 "Default is to use no muxer (standard RTP stream)." )
66 #define NAME_TEXT N_("Session name")
67 #define NAME_LONGTEXT N_( \
68 "This is the name of the session that will be announced in the SDP " \
69 "(Session Descriptor)." )
70 #define DESC_TEXT N_("Session description")
71 #define DESC_LONGTEXT N_( \
72 "This allows you to give a broader description of the stream, that will " \
73 "be announced in the SDP (Session Descriptor)." )
74 #define URL_TEXT N_("Session URL")
75 #define URL_LONGTEXT N_( \
76 "This allows you to give an URL with more details about the stream " \
77 "(often the website of the streaming organization), that will " \
78 "be announced in the SDP (Session Descriptor)." )
79 #define EMAIL_TEXT N_("Session email")
80 #define EMAIL_LONGTEXT N_( \
81 "This allows you to give a contact mail address for the stream, that will " \
82 "be announced in the SDP (Session Descriptor)." )
83 #define PORT_TEXT N_("Port")
84 #define PORT_LONGTEXT N_( \
85 "This allows you to specify the base port for the RTP streaming." )
86 #define PORT_AUDIO_TEXT N_("Audio port")
87 #define PORT_AUDIO_LONGTEXT N_( \
88 "This allows you to specify the default audio port for the RTP streaming." )
89 #define PORT_VIDEO_TEXT N_("Video port")
90 #define PORT_VIDEO_LONGTEXT N_( \
91 "This allows you to specify the default video port for the RTP streaming." )
93 #define TTL_TEXT N_("Hop limit (TTL)")
94 #define TTL_LONGTEXT N_( \
95 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
96 "the multicast packets sent by the stream output (0 = use operating " \
97 "system built-in default).")
99 #define RFC3016_TEXT N_("MP4A LATM")
100 #define RFC3016_LONGTEXT N_( \
101 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
103 static int Open ( vlc_object_t * );
104 static void Close( vlc_object_t * );
106 #define SOUT_CFG_PREFIX "sout-rtp-"
109 set_shortname( _("RTP"));
110 set_description( _("RTP stream output") );
111 set_capability( "sout stream", 0 );
112 add_shortcut( "rtp" );
113 set_category( CAT_SOUT );
114 set_subcategory( SUBCAT_SOUT_STREAM );
116 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
117 DST_LONGTEXT, VLC_TRUE );
118 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
119 SDP_LONGTEXT, VLC_TRUE );
120 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
121 MUX_LONGTEXT, VLC_TRUE );
123 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
124 NAME_LONGTEXT, VLC_TRUE );
125 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
126 DESC_LONGTEXT, VLC_TRUE );
127 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
128 URL_LONGTEXT, VLC_TRUE );
129 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
130 EMAIL_LONGTEXT, VLC_TRUE );
132 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
133 PORT_LONGTEXT, VLC_TRUE );
134 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
135 PORT_AUDIO_LONGTEXT, VLC_TRUE );
136 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
137 PORT_VIDEO_LONGTEXT, VLC_TRUE );
139 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
140 TTL_LONGTEXT, VLC_TRUE );
142 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
143 RFC3016_LONGTEXT, VLC_FALSE );
145 set_callbacks( Open, Close );
148 /*****************************************************************************
149 * Exported prototypes
150 *****************************************************************************/
151 static const char *ppsz_sout_options[] = {
152 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
153 "description", "url","email", "mp4a-latm", NULL
156 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
157 static int Del ( sout_stream_t *, sout_stream_id_t * );
158 static int Send( sout_stream_t *, sout_stream_id_t *,
161 struct sout_stream_sys_t
167 vlc_mutex_t lock_sdp;
169 char *psz_session_name;
170 char *psz_session_description;
171 char *psz_session_url;
172 char *psz_session_email;
175 vlc_bool_t b_export_sdp_file;
178 vlc_bool_t b_export_sap;
179 session_descriptor_t *p_session;
181 httpd_host_t *p_httpd_host;
182 httpd_file_t *p_httpd_file;
184 httpd_host_t *p_rtsp_host;
185 httpd_url_t *p_rtsp_url;
186 char *psz_rtsp_control;
190 char *psz_destination;
197 /* when need to use a private one or when using muxer */
200 /* in case we do TS/PS over rtp */
202 sout_access_out_t *p_access;
204 sout_access_out_t *p_grab;
206 uint32_t i_timestamp_start;
213 sout_stream_id_t **es;
217 rtsp_client_t **rtsp;
220 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
222 static void SDPHandleUrl( sout_stream_t *, char * );
224 static int SapSetup( sout_stream_t *p_stream );
225 static int FileSetup( sout_stream_t *p_stream );
226 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
228 /*****************************************************************************
230 *****************************************************************************/
231 static int Open( vlc_object_t *p_this )
233 sout_stream_t *p_stream = (sout_stream_t*)p_this;
234 sout_instance_t *p_sout = p_stream->p_sout;
235 sout_stream_sys_t *p_sys = NULL;
236 config_chain_t *p_cfg = NULL;
238 vlc_bool_t b_rtsp = VLC_FALSE;
240 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
241 ppsz_sout_options, p_stream->p_cfg );
243 p_sys = malloc( sizeof( sout_stream_sys_t ) );
247 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
248 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
249 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
250 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
251 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
253 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
254 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
255 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
257 p_sys->psz_sdp_file = NULL;
259 if( p_sys->i_port_audio == p_sys->i_port_video )
261 msg_Err( p_stream, "audio and video port cannot be the same" );
262 p_sys->i_port_audio = 0;
263 p_sys->i_port_video = 0;
266 if( !p_sys->psz_session_name )
268 if( p_sys->psz_destination )
269 p_sys->psz_session_name = strdup( p_sys->psz_destination );
271 p_sys->psz_session_name = strdup( "NONE" );
274 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
276 if( !strcmp( p_cfg->psz_name, "sdp" ) )
278 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
288 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
289 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
291 free( val2.psz_string );
294 if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
298 msg_Err( p_stream, "missing destination and not in rtsp mode" );
302 p_sys->psz_destination = NULL;
304 else if( p_sys->i_port <= 0 )
306 msg_Err( p_stream, "invalid port" );
311 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
312 if( p_sys->i_ttl == 0 )
314 /* Normally, we should let the default hop limit up to the core,
315 * but we have to know it to build our SDP properly, which is why
316 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
318 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
320 if( p_sys->i_ttl > 255 )
322 /* must not exceed 999 once formatted */
324 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
326 p_sys->i_payload_type = 96;
331 p_sys->psz_sdp = NULL;
333 p_sys->i_sdp_id = mdate();
334 p_sys->i_sdp_version = 1;
335 p_sys->psz_sdp = NULL;
337 p_sys->b_export_sap = VLC_FALSE;
338 p_sys->b_export_sdp_file = VLC_FALSE;
339 p_sys->p_session = NULL;
341 p_sys->p_httpd_host = NULL;
342 p_sys->p_httpd_file = NULL;
343 p_sys->p_rtsp_host = NULL;
344 p_sys->p_rtsp_url = NULL;
345 p_sys->psz_rtsp_control = NULL;
346 p_sys->psz_rtsp_path = NULL;
348 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
349 vlc_mutex_init( p_stream, &p_sys->lock_es );
351 p_stream->pf_add = Add;
352 p_stream->pf_del = Del;
353 p_stream->pf_send = Send;
355 p_stream->p_sys = p_sys;
357 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
358 if( *val.psz_string )
360 sout_access_out_t *p_grab;
361 const char *psz_rtpmap;
362 char url[NI_MAXHOST + 8], access[22], psz_ttl[5], ipv;
366 msg_Err( p_stream, "muxing is not supported in RTSP mode" );
370 else if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
372 msg_Err( p_stream, "RTP needs a destination when muxing" );
377 /* Check muxer type */
378 if( !strncasecmp( val.psz_string, "ps", 2 )
379 || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
381 psz_rtpmap = "MP2P/90000";
383 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
385 psz_rtpmap = "MP2T/90000";
386 p_sys->i_payload_type = 33;
390 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
395 /* create the access out */
396 if( p_sys->i_ttl > 0 )
398 sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl );
402 strcat( access, "udp{raw,rtcp}" );
405 /* FIXME: we should check that url is a numerical address, otherwise
406 * the SDP will be quite broken (regardless of the IP protocol version)
407 * Also it might be IPv6 with no ':' if it is a DNS name.
409 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
411 /* IPv6 needs brackets if not already present */
412 if ((ipv == '6') && (p_sys->psz_destination[0] != '['))
413 snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination,
416 snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination,
419 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
421 msg_Err( p_stream, "cannot create the access out for %s://%s",
426 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
427 if( p_sys->i_mtu <= 16 + MTU_REDUCE )
429 /* better than nothing */
432 p_sys->i_mtu -= MTU_REDUCE;
434 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
435 p_grab = p_sys->p_grab =
436 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
437 p_grab->p_module = NULL;
438 p_grab->p_sout = p_sout;
439 p_grab->psz_access = strdup( "grab" );
440 p_grab->p_cfg = NULL;
441 p_grab->psz_path = strdup( "" );
442 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
443 p_grab->pf_seek = NULL;
444 p_grab->pf_write = AccessOutGrabberWrite;
447 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
449 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
450 sout_AccessOutDelete( p_sys->p_grab );
451 sout_AccessOutDelete( p_sys->p_access );
456 /* create the SDP for a muxed stream (only once) */
457 /* FIXME http://www.faqs.org/rfcs/rfc4566.html
458 o= - should be local username (no spaces allowed)
459 o= time should be hashed with some other value to garantee uniqueness
460 o= don't use the localhost address. use fully qualified domain name or IP4 address
461 a= source-filter: we need our source address
462 a= x-plgroup: (missing)
463 RTP packets need to get the correct src IP address */
465 && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) )
467 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
468 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
475 asprintf( &p_sys->psz_sdp,
477 /* FIXME: source address not known :( */
478 "o=- "I64Fd" %d IN IP%c %s\r\n"
484 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
485 "a=tool:"PACKAGE_STRING"\r\n"
487 "a=type:broadcast\r\n"
488 "m=video %d RTP/AVP %d\r\n"
489 "a=rtpmap:%d %s\r\n",
490 p_sys->i_sdp_id, p_sys->i_sdp_version,
491 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
492 p_sys->psz_session_name,
493 p_sys->psz_session_description,
494 p_sys->psz_session_url,
495 p_sys->psz_session_email,
496 ipv, p_sys->psz_destination, psz_ttl,
497 p_sys->i_port, p_sys->i_payload_type,
498 p_sys->i_payload_type, psz_rtpmap );
499 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
501 /* create the rtp context */
502 p_sys->ssrc[0] = rand()&0xff;
503 p_sys->ssrc[1] = rand()&0xff;
504 p_sys->ssrc[2] = rand()&0xff;
505 p_sys->ssrc[3] = rand()&0xff;
506 p_sys->i_sequence = rand()&0xffff;
507 p_sys->i_timestamp_start = rand()&0xffffffff;
508 p_sys->packet = NULL;
513 p_sys->p_access = NULL;
514 p_sys->p_grab = NULL;
516 free( val.psz_string );
519 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
520 if( *val.psz_string )
522 config_chain_t *p_cfg;
524 SDPHandleUrl( p_stream, val.psz_string );
526 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
528 if( !strcmp( p_cfg->psz_name, "sdp" ) )
530 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
533 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
534 if( !strcmp( p_cfg->psz_value, val.psz_string ) )
537 SDPHandleUrl( p_stream, p_cfg->psz_value );
541 free( val.psz_string );
543 /* update p_sout->i_out_pace_nocontrol */
544 p_stream->p_sout->i_out_pace_nocontrol++;
549 /*****************************************************************************
551 *****************************************************************************/
552 static void Close( vlc_object_t * p_this )
554 sout_stream_t *p_stream = (sout_stream_t*)p_this;
555 sout_stream_sys_t *p_sys = p_stream->p_sys;
557 /* update p_sout->i_out_pace_nocontrol */
558 p_stream->p_sout->i_out_pace_nocontrol--;
562 sout_MuxDelete( p_sys->p_mux );
563 sout_AccessOutDelete( p_sys->p_access );
564 sout_AccessOutDelete( p_sys->p_grab );
567 block_Release( p_sys->packet );
569 if( p_sys->b_export_sap )
572 SapSetup( p_stream );
576 while( p_sys->i_rtsp > 0 )
577 RtspClientDel( p_stream, p_sys->rtsp[0] );
579 vlc_mutex_destroy( &p_sys->lock_sdp );
581 if( p_sys->p_httpd_file )
582 httpd_FileDelete( p_sys->p_httpd_file );
584 if( p_sys->p_httpd_host )
585 httpd_HostDelete( p_sys->p_httpd_host );
587 if( p_sys->p_rtsp_url )
588 httpd_UrlDelete( p_sys->p_rtsp_url );
590 if( p_sys->p_rtsp_host )
591 httpd_HostDelete( p_sys->p_rtsp_host );
593 if( p_sys->psz_session_name )
594 free( p_sys->psz_session_name );
596 if( p_sys->psz_session_description )
597 free( p_sys->psz_session_description );
599 if( p_sys->psz_session_url )
600 free( p_sys->psz_session_url );
602 if( p_sys->psz_session_email )
603 free( p_sys->psz_session_email );
606 free( p_sys->psz_sdp );
608 if( p_sys->b_export_sdp_file )
611 unlink( p_sys->psz_sdp_file );
613 free( p_sys->psz_sdp_file );
615 if( p_sys->psz_destination )
616 free( p_sys->psz_destination );
620 /*****************************************************************************
622 *****************************************************************************/
623 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
625 sout_stream_sys_t *p_sys = p_stream->p_sys;
628 vlc_UrlParse( &url, psz_url, 0 );
629 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
631 if( p_sys->p_httpd_file )
633 msg_Err( p_stream, "you can use sdp=http:// only once" );
637 if( HttpSetup( p_stream, &url ) )
639 msg_Err( p_stream, "cannot export sdp as http" );
642 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
644 if( p_sys->p_rtsp_url )
646 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
650 /* FIXME test if destination is multicast or no destination at all FIXME */
651 if( RtspSetup( p_stream, &url ) )
653 msg_Err( p_stream, "cannot export sdp as rtsp" );
656 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
657 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
659 p_sys->b_export_sap = VLC_TRUE;
660 SapSetup( p_stream );
662 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
664 if( p_sys->b_export_sdp_file )
666 msg_Err( p_stream, "you can use sdp=file:// only once" );
669 p_sys->b_export_sdp_file = VLC_TRUE;
670 psz_url = &psz_url[5];
671 if( psz_url[0] == '/' && psz_url[1] == '/' )
673 p_sys->psz_sdp_file = strdup( psz_url );
677 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
680 vlc_UrlClean( &url );
683 /*****************************************************************************
685 *****************************************************************************/
686 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
687 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
688 o= - should be local username (no spaces allowed)
689 o= time should be hashed with some other value to garantue uniqueness
690 o= we need IP6 support?
691 o= don't use the localhost address. use fully qualified domain name or IP4 address
692 p= international phone number (pass via vars?)
694 a= recvonly (missing)
695 a= type:broadcast (missing)
696 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
697 a= x-plgroup: (missing)
698 RTP packets need to get the correct src IP address */
699 /*static*/ char *SDPGenerate( const sout_stream_t *p_stream,
700 const char *psz_destination, vlc_bool_t b_rtsp )
702 sout_stream_sys_t *p_sys = p_stream->p_sys;
704 char *psz_sdp, *p, ipv;
707 /* FIXME: breaks IP version check on unknown destination */
708 if( psz_destination == NULL )
709 psz_destination = "0.0.0.0";
711 i_size = sizeof( "v=0\r\n" ) +
712 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
713 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
714 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
715 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
716 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
717 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
718 sizeof( "b=RR:0\r\n" ) +
719 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
720 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
721 strlen( psz_destination ) ;
722 for( i = 0; i < p_sys->i_es; i++ )
724 sout_stream_id_t *id = p_sys->es[i];
726 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
729 i_size += strlen( "b=AS: *\r\n") + 10;
733 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
737 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
741 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
746 i_size += strlen( "m=video %d RTP/AVP %d\r\n" ) +10 +10;
749 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
751 p = psz_sdp = malloc( i_size );
752 p += sprintf( p, "v=0\r\n" );
753 p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
754 p_sys->i_sdp_id, p_sys->i_sdp_version,
755 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
756 if( *p_sys->psz_session_name )
757 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
758 if( *p_sys->psz_session_description )
759 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
760 if( *p_sys->psz_session_url )
761 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
762 if( *p_sys->psz_session_email )
763 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
765 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
766 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
768 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
771 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
773 /* Add the deprecated TTL field if it is an IPv4 multicast address */
774 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
776 p += sprintf( p, "\r\n" );
777 p += sprintf( p, "b=RR:0\r\n" );
779 for( i = 0; i < p_sys->i_es; i++ )
781 sout_stream_id_t *id = p_sys->es[i];
783 if( id->i_cat == AUDIO_ES )
785 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
786 id->i_port, id->i_payload_type );
788 else if( id->i_cat == VIDEO_ES )
790 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
791 id->i_port, id->i_payload_type );
799 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
803 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
808 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
813 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
818 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
819 p_sys->i_port, p_sys->i_payload_type );
825 /*****************************************************************************
827 *****************************************************************************/
828 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
829 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
830 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
831 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
832 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
833 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
834 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
835 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
836 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
837 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
838 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
840 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
842 static const char hex[16] = "0123456789abcdef";
845 for( i = 0; i < i_data; i++ )
847 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
848 s[2*i+1] = hex[(p_data[i] )&0xf];
853 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
855 sout_instance_t *p_sout = p_stream->p_sout;
856 sout_stream_sys_t *p_sys = p_stream->p_sys;
857 sout_stream_id_t *id;
858 sout_access_out_t *p_access = NULL;
862 if( p_sys->p_mux != NULL )
864 sout_input_t *p_input = NULL;
865 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
867 msg_Err( p_stream, "cannot add this stream to the muxer" );
871 id = malloc( sizeof( sout_stream_id_t ) );
872 memset( id, 0, sizeof( sout_stream_id_t ) );
874 id->p_input = p_input;
875 id->pf_packetize= NULL;
876 id->p_rtsp_url = NULL;
882 /* Choose the port */
884 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
886 i_port = p_sys->i_port_audio;
887 p_sys->i_port_audio = 0;
889 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
891 i_port = p_sys->i_port_video;
892 p_sys->i_port_video = 0;
896 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
898 i_port = p_sys->i_port;
905 if( p_sys->psz_destination )
908 char url[NI_MAXHOST + 8];
910 /* first try to create the access out */
913 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
915 access[sizeof( access ) - 1] = '\0';
918 strcpy( access, "udp{raw,rtcp}" );
920 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
921 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
922 p_sys->psz_destination, i_port );
923 url[sizeof( url ) - 1] = '\0';
925 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
927 msg_Err( p_stream, "cannot create the access out for %s://%s",
931 msg_Dbg( p_stream, "access out %s:%s", access, url );
934 /* not create the rtp specific stuff */
935 id = malloc( sizeof( sout_stream_id_t ) );
936 memset( id, 0, sizeof( sout_stream_id_t ) );
937 id->p_stream = p_stream;
938 id->p_access = p_access;
940 id->psz_rtpmap = NULL;
942 id->psz_destination = p_sys->psz_destination ? strdup( p_sys->psz_destination ) : NULL;
944 id->p_rtsp_url = NULL;
945 vlc_mutex_init( p_stream, &id->lock_rtsp );
946 id->i_rtsp_access = 0;
947 id->rtsp_access = NULL;
949 switch( p_fmt->i_codec )
951 case VLC_FOURCC( 's', '1', '6', 'b' ):
952 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
954 id->i_payload_type = 11;
956 else if( p_fmt->audio.i_channels == 2 &&
957 p_fmt->audio.i_rate == 44100 )
959 id->i_payload_type = 10;
963 id->i_payload_type = p_sys->i_payload_type++;
965 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
966 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
967 p_fmt->audio.i_channels );
968 id->i_clock_rate = p_fmt->audio.i_rate;
969 id->pf_packetize = rtp_packetize_l16;
971 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
972 id->i_payload_type = p_sys->i_payload_type++;
973 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
974 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
975 p_fmt->audio.i_channels );
976 id->i_clock_rate = p_fmt->audio.i_rate;
977 id->pf_packetize = rtp_packetize_l8;
979 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
980 id->i_payload_type = 14;
981 id->i_clock_rate = 90000;
982 id->psz_rtpmap = strdup( "MPA/90000" );
983 id->pf_packetize = rtp_packetize_mpa;
985 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
986 id->i_payload_type = 32;
987 id->i_clock_rate = 90000;
988 id->psz_rtpmap = strdup( "MPV/90000" );
989 id->pf_packetize = rtp_packetize_mpv;
991 case VLC_FOURCC( 'a', '5', '2', ' ' ):
992 id->i_payload_type = p_sys->i_payload_type++;
993 id->i_clock_rate = 90000;
994 id->psz_rtpmap = strdup( "ac3/90000" );
995 id->pf_packetize = rtp_packetize_ac3;
997 case VLC_FOURCC( 'H', '2', '6', '3' ):
998 id->i_payload_type = p_sys->i_payload_type++;
999 id->i_clock_rate = 90000;
1000 id->psz_rtpmap = strdup( "H263-1998/90000" );
1001 id->pf_packetize = rtp_packetize_h263;
1003 case VLC_FOURCC( 'h', '2', '6', '4' ):
1004 id->i_payload_type = p_sys->i_payload_type++;
1005 id->i_clock_rate = 90000;
1006 id->psz_rtpmap = strdup( "H264/90000" );
1007 id->pf_packetize = rtp_packetize_h264;
1008 id->psz_fmtp = NULL;
1010 if( p_fmt->i_extra > 0 )
1012 uint8_t *p_buffer = p_fmt->p_extra;
1013 int i_buffer = p_fmt->i_extra;
1014 char *p_64_sps = NULL;
1015 char *p_64_pps = NULL;
1018 while( i_buffer > 4 &&
1019 p_buffer[0] == 0 && p_buffer[1] == 0 &&
1020 p_buffer[2] == 0 && p_buffer[3] == 1 )
1022 const int i_nal_type = p_buffer[4]&0x1f;
1026 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1029 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1031 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1033 /* we found another startcode */
1038 if( i_nal_type == 7 )
1040 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1041 sprintf_hexa( hexa, &p_buffer[5], 3 );
1043 else if( i_nal_type == 8 )
1045 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1051 if( p_64_sps && p_64_pps )
1052 asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
1059 id->psz_fmtp = strdup( "packetization-mode=1" );
1062 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1064 char hexa[2*p_fmt->i_extra +1];
1066 id->i_payload_type = p_sys->i_payload_type++;
1067 id->i_clock_rate = 90000;
1068 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1069 id->pf_packetize = rtp_packetize_split;
1070 if( p_fmt->i_extra > 0 )
1072 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1073 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1074 sprintf( id->psz_fmtp,
1075 "profile-level-id=3; config=%s;", hexa );
1079 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1081 id->i_payload_type = p_sys->i_payload_type++;
1082 id->i_clock_rate = p_fmt->audio.i_rate;
1086 char hexa[2*p_fmt->i_extra +1];
1088 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1089 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1090 id->pf_packetize = rtp_packetize_mp4a;
1091 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1092 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1093 sprintf( id->psz_fmtp,
1094 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1095 "config=%s; SizeLength=13;IndexLength=3; "
1096 "IndexDeltaLength=3; Profile=1;", hexa );
1102 unsigned char config[6];
1103 unsigned int aacsrates[15] = {
1104 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1105 16000, 12000, 11025, 8000, 7350, 0, 0 };
1107 for( i = 0; i < 15; i++ )
1108 if( p_fmt->audio.i_rate == aacsrates[i] )
1114 config[3]=p_fmt->audio.i_channels<<4;
1118 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1119 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1120 id->pf_packetize = rtp_packetize_mp4a_latm;
1121 sprintf_hexa( hexa, config, 6 );
1122 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1123 "object=2; cpresent=0; config=%s", hexa );
1127 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1128 id->i_payload_type = p_sys->i_payload_type++;
1129 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1130 "AMR/8000/2" : "AMR/8000" );
1131 id->psz_fmtp = strdup( "octet-align=1" );
1132 id->i_clock_rate = p_fmt->audio.i_rate;
1133 id->pf_packetize = rtp_packetize_amr;
1135 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1136 id->i_payload_type = p_sys->i_payload_type++;
1137 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1138 "AMR-WB/16000/2" : "AMR-WB/16000" );
1139 id->psz_fmtp = strdup( "octet-align=1" );
1140 id->i_clock_rate = p_fmt->audio.i_rate;
1141 id->pf_packetize = rtp_packetize_amr;
1145 msg_Err( p_stream, "cannot add this stream (unsupported "
1146 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1149 sout_AccessOutDelete( p_access );
1154 id->i_cat = p_fmt->i_cat;
1156 id->ssrc[0] = rand()&0xff;
1157 id->ssrc[1] = rand()&0xff;
1158 id->ssrc[2] = rand()&0xff;
1159 id->ssrc[3] = rand()&0xff;
1160 id->i_sequence = rand()&0xffff;
1161 id->i_timestamp_start = rand()&0xffffffff;
1162 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1164 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1165 if( id->i_mtu <= 16 + MTU_REDUCE )
1167 /* better than nothing */
1170 id->i_mtu -= MTU_REDUCE;
1171 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1173 if( p_sys->p_rtsp_url )
1175 char psz_urlc[strlen( p_sys->psz_rtsp_control ) + 1 + 10];
1177 sprintf( psz_urlc, "%s/trackID=%d", p_sys->psz_rtsp_path, p_sys->i_es );
1178 msg_Dbg( p_stream, "rtsp: adding %s\n", psz_urlc );
1179 id->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, psz_urlc, NULL, NULL, NULL );
1181 if( id->p_rtsp_url )
1183 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_DESCRIBE, RtspCallbackId, (void*)id );
1184 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallbackId, (void*)id );
1185 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallbackId, (void*)id );
1186 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallbackId, (void*)id );
1187 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_TEARDOWN, RtspCallbackId, (void*)id );
1192 /* Update p_sys context */
1193 vlc_mutex_lock( &p_sys->lock_es );
1194 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1195 vlc_mutex_unlock( &p_sys->lock_es );
1197 psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE );
1199 vlc_mutex_lock( &p_sys->lock_sdp );
1200 free( p_sys->psz_sdp );
1201 p_sys->psz_sdp = psz_sdp;
1202 vlc_mutex_unlock( &p_sys->lock_sdp );
1204 p_sys->i_sdp_version++;
1206 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
1208 /* Update SDP (sap/file) */
1209 if( p_sys->b_export_sap ) SapSetup( p_stream );
1210 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1215 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1217 sout_stream_sys_t *p_sys = p_stream->p_sys;
1219 vlc_mutex_lock( &p_sys->lock_es );
1220 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1221 vlc_mutex_unlock( &p_sys->lock_es );
1224 if( id->i_port > 0 )
1226 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1227 p_sys->i_port_audio = id->i_port;
1228 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1229 p_sys->i_port_video = id->i_port;
1234 if( id->psz_rtpmap )
1236 free( id->psz_rtpmap );
1240 free( id->psz_fmtp );
1242 if( id->psz_destination )
1243 free( id->psz_destination );
1244 sout_AccessOutDelete( id->p_access );
1246 else if( id->p_input )
1248 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1250 if( id->p_rtsp_url )
1252 httpd_UrlDelete( id->p_rtsp_url );
1254 vlc_mutex_destroy( &id->lock_rtsp );
1255 if( id->rtsp_access ) free( id->rtsp_access );
1257 /* Update SDP (sap/file) */
1258 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1259 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1265 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1270 if( p_stream->p_sys->p_mux )
1272 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1278 p_next = p_buffer->p_next;
1279 if( id->pf_packetize( p_stream, id, p_buffer ) )
1283 block_Release( p_buffer );
1291 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1294 sout_stream_sys_t *p_sys = p_stream->p_sys;
1296 int64_t i_dts = p_buffer->i_dts;
1297 uint32_t i_timestamp = i_dts * 9 / 100;
1299 uint8_t *p_data = p_buffer->p_buffer;
1300 unsigned int i_data = p_buffer->i_buffer;
1301 unsigned int i_max = p_sys->i_mtu - 12;
1303 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1307 unsigned int i_size;
1309 /* output complete packet */
1310 if( p_sys->packet &&
1311 p_sys->packet->i_buffer + i_data > i_max )
1313 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1314 p_sys->packet = NULL;
1317 if( p_sys->packet == NULL )
1319 /* allocate a new packet */
1320 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1321 p_sys->packet->p_buffer[ 0] = 0x80;
1322 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1323 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1324 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1325 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1326 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1327 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1328 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1329 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1330 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1331 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1332 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1333 p_sys->packet->i_buffer = 12;
1335 p_sys->packet->i_dts = i_dts;
1336 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1337 i_dts += p_sys->packet->i_length;
1339 p_sys->i_sequence++;
1342 i_size = __MIN( i_data,
1343 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1345 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1348 p_sys->packet->i_buffer += i_size;
1356 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1359 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1361 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1367 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1369 p_next = p_buffer->p_next;
1370 block_Release( p_buffer );
1377 /****************************************************************************
1379 ****************************************************************************/
1380 static int SapSetup( sout_stream_t *p_stream )
1382 sout_stream_sys_t *p_sys = p_stream->p_sys;
1383 sout_instance_t *p_sout = p_stream->p_sout;
1384 announce_method_t *p_method = sout_SAPMethod();
1386 /* Remove the previous session */
1387 if( p_sys->p_session != NULL)
1389 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1390 sout_AnnounceSessionDestroy( p_sys->p_session );
1391 p_sys->p_session = NULL;
1394 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1396 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1398 p_sys->psz_destination,
1402 sout_MethodRelease( p_method );
1406 /****************************************************************************
1408 ****************************************************************************/
1409 static int FileSetup( sout_stream_t *p_stream )
1411 sout_stream_sys_t *p_sys = p_stream->p_sys;
1414 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1416 msg_Err( p_stream, "cannot open file '%s' (%s)",
1417 p_sys->psz_sdp_file, strerror(errno) );
1418 return VLC_EGENERIC;
1421 fprintf( f, "%s", p_sys->psz_sdp );
1427 /****************************************************************************
1429 ****************************************************************************/
1430 static int HttpCallback( httpd_file_sys_t *p_args,
1431 httpd_file_t *, uint8_t *p_request,
1432 uint8_t **pp_data, int *pi_data );
1434 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1436 sout_stream_sys_t *p_sys = p_stream->p_sys;
1438 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1439 if( p_sys->p_httpd_host )
1441 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1442 url->psz_path ? url->psz_path : "/",
1445 HttpCallback, (void*)p_sys );
1447 if( p_sys->p_httpd_file == NULL )
1449 return VLC_EGENERIC;
1454 static int HttpCallback( httpd_file_sys_t *p_args,
1455 httpd_file_t *f, uint8_t *p_request,
1456 uint8_t **pp_data, int *pi_data )
1458 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1460 vlc_mutex_lock( &p_sys->lock_sdp );
1461 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1463 *pi_data = strlen( p_sys->psz_sdp );
1464 *pp_data = malloc( *pi_data );
1465 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1472 vlc_mutex_unlock( &p_sys->lock_sdp );
1477 /****************************************************************************
1479 ****************************************************************************/
1480 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1481 int b_marker, int64_t i_pts )
1483 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1485 out->p_buffer[0] = 0x80;
1486 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1487 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1488 out->p_buffer[3] = ( id->i_sequence )&0xff;
1489 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1490 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1491 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1492 out->p_buffer[7] = ( i_timestamp )&0xff;
1494 out->p_buffer[ 8] = id->ssrc[0];
1495 out->p_buffer[ 9] = id->ssrc[1];
1496 out->p_buffer[10] = id->ssrc[2];
1497 out->p_buffer[11] = id->ssrc[3];
1503 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1506 vlc_mutex_lock( &id->lock_rtsp );
1507 for( i = 0; i < id->i_rtsp_access; i++ )
1509 sout_AccessOutWrite( id->rtsp_access[i], block_Duplicate( out ) );
1511 vlc_mutex_unlock( &id->lock_rtsp );
1515 sout_AccessOutWrite( id->p_access, out );
1519 block_Release( out );
1523 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1526 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1527 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1529 uint8_t *p_data = in->p_buffer;
1530 int i_data = in->i_buffer;
1533 for( i = 0; i < i_count; i++ )
1535 int i_payload = __MIN( i_max, i_data );
1536 block_t *out = block_New( p_stream, 16 + i_payload );
1538 /* rtp common header */
1539 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1541 out->p_buffer[12] = 0;
1542 out->p_buffer[13] = 0;
1543 /* fragment offset in the current frame */
1544 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1545 out->p_buffer[15] = ( (i*i_max) )&0xff;
1546 memcpy( &out->p_buffer[16], p_data, i_payload );
1548 out->i_buffer = 16 + i_payload;
1549 out->i_dts = in->i_dts + i * in->i_length / i_count;
1550 out->i_length = in->i_length / i_count;
1552 rtp_packetize_send( id, out );
1554 p_data += i_payload;
1555 i_data -= i_payload;
1562 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1565 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1566 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1568 uint8_t *p_data = in->p_buffer;
1569 int i_data = in->i_buffer;
1571 int b_sequence_start = 0;
1572 int i_temporal_ref = 0;
1573 int i_picture_coding_type = 0;
1574 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1575 int b_start_slice = 0;
1577 /* preparse this packet to get some info */
1578 if( in->i_buffer > 4 )
1580 uint8_t *p = p_data;
1581 int i_rest = in->i_buffer;
1585 while( i_rest > 4 &&
1586 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1600 /* sequence start code */
1601 b_sequence_start = 1;
1603 else if( *p == 0x00 && i_rest >= 4 )
1606 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1607 i_picture_coding_type = (p[2] >> 3)&0x07;
1609 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1610 i_picture_coding_type == 3 ) )
1612 i_ffv = (p[3] >> 2)&0x01;
1613 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1614 if( i_rest > 4 && i_picture_coding_type == 3 )
1616 i_fbv = (p[4]>>6)&0x01;
1617 i_bfc = (p[4]>>3)&0x07;
1621 else if( *p <= 0xaf )
1628 for( i = 0; i < i_count; i++ )
1630 int i_payload = __MIN( i_max, i_data );
1631 block_t *out = block_New( p_stream,
1633 uint32_t h = ( i_temporal_ref << 16 )|
1634 ( b_sequence_start << 13 )|
1635 ( b_start_slice << 12 )|
1636 ( i == i_count - 1 ? 1 << 11 : 0 )|
1637 ( i_picture_coding_type << 8 )|
1638 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
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 );
1644 /* 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 */
1645 out->p_buffer[12] = ( h >> 24 )&0xff;
1646 out->p_buffer[13] = ( h >> 16 )&0xff;
1647 out->p_buffer[14] = ( h >> 8 )&0xff;
1648 out->p_buffer[15] = ( h )&0xff;
1650 memcpy( &out->p_buffer[16], p_data, i_payload );
1652 out->i_buffer = 16 + i_payload;
1653 out->i_dts = in->i_dts + i * in->i_length / i_count;
1654 out->i_length = in->i_length / i_count;
1656 rtp_packetize_send( id, out );
1658 p_data += i_payload;
1659 i_data -= i_payload;
1665 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1668 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1669 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1671 uint8_t *p_data = in->p_buffer;
1672 int i_data = in->i_buffer;
1675 for( i = 0; i < i_count; i++ )
1677 int i_payload = __MIN( i_max, i_data );
1678 block_t *out = block_New( p_stream, 14 + i_payload );
1680 /* rtp common header */
1681 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1683 out->p_buffer[12] = 1;
1685 out->p_buffer[13] = 0x00;
1687 memcpy( &out->p_buffer[14], p_data, i_payload );
1689 out->i_buffer = 14 + i_payload;
1690 out->i_dts = in->i_dts + i * in->i_length / i_count;
1691 out->i_length = in->i_length / i_count;
1693 rtp_packetize_send( id, out );
1695 p_data += i_payload;
1696 i_data -= i_payload;
1702 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1705 int i_max = id->i_mtu - 12; /* payload max in one packet */
1706 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1708 uint8_t *p_data = in->p_buffer;
1709 int i_data = in->i_buffer;
1712 for( i = 0; i < i_count; i++ )
1714 int i_payload = __MIN( i_max, i_data );
1715 block_t *out = block_New( p_stream, 12 + i_payload );
1717 /* rtp common header */
1718 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1719 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1720 memcpy( &out->p_buffer[12], p_data, i_payload );
1722 out->i_buffer = 12 + i_payload;
1723 out->i_dts = in->i_dts + i * in->i_length / i_count;
1724 out->i_length = in->i_length / i_count;
1726 rtp_packetize_send( id, out );
1728 p_data += i_payload;
1729 i_data -= i_payload;
1736 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1739 int i_max = id->i_mtu - 14; /* payload max in one packet */
1740 int latmhdrsize = in->i_buffer / 0xff + 1;
1741 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1743 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1744 int i_data = in->i_buffer;
1747 for( i = 0; i < i_count; i++ )
1749 int i_payload = __MIN( i_max, i_data );
1754 out = block_New( p_stream, 12 + latmhdrsize + 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) );
1762 int tmp = in->i_buffer;
1764 p_header=out->p_buffer+12;
1774 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1776 out->i_buffer = 12 + latmhdrsize + i_payload;
1777 out->i_dts = in->i_dts + i * in->i_length / i_count;
1778 out->i_length = in->i_length / i_count;
1780 rtp_packetize_send( id, out );
1782 p_data += i_payload;
1783 i_data -= i_payload;
1789 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1792 int i_max = id->i_mtu - 12; /* payload max in one packet */
1793 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1795 uint8_t *p_data = in->p_buffer;
1796 int i_data = in->i_buffer;
1801 int i_payload = (__MIN( i_max, i_data )/4)*4;
1802 block_t *out = block_New( p_stream, 12 + i_payload );
1804 /* rtp common header */
1805 rtp_packetize_common( id, out, 0,
1806 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1807 memcpy( &out->p_buffer[12], p_data, i_payload );
1809 out->i_buffer = 12 + i_payload;
1810 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1811 out->i_length = in->i_length / i_count;
1813 rtp_packetize_send( id, out );
1815 p_data += i_payload;
1816 i_data -= i_payload;
1823 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1826 int i_max = id->i_mtu - 12; /* payload max in one packet */
1827 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1829 uint8_t *p_data = in->p_buffer;
1830 int i_data = in->i_buffer;
1835 int i_payload = (__MIN( i_max, i_data )/2)*2;
1836 block_t *out = block_New( p_stream, 12 + i_payload );
1838 /* rtp common header */
1839 rtp_packetize_common( id, out, 0,
1840 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1841 memcpy( &out->p_buffer[12], p_data, i_payload );
1843 out->i_buffer = 12 + i_payload;
1844 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1845 out->i_length = in->i_length / i_count;
1847 rtp_packetize_send( id, out );
1849 p_data += i_payload;
1850 i_data -= i_payload;
1856 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1859 int i_max = id->i_mtu - 16; /* payload max in one packet */
1860 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1862 uint8_t *p_data = in->p_buffer;
1863 int i_data = in->i_buffer;
1866 for( i = 0; i < i_count; i++ )
1868 int i_payload = __MIN( i_max, i_data );
1869 block_t *out = block_New( p_stream, 16 + i_payload );
1871 /* rtp common header */
1872 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1873 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1875 /* AU headers length (bits) */
1876 out->p_buffer[12] = 0;
1877 out->p_buffer[13] = 2*8;
1878 /* for each AU length 13 bits + idx 3bits, */
1879 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1880 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1882 memcpy( &out->p_buffer[16], p_data, i_payload );
1884 out->i_buffer = 16 + i_payload;
1885 out->i_dts = in->i_dts + i * in->i_length / i_count;
1886 out->i_length = in->i_length / i_count;
1888 rtp_packetize_send( id, out );
1890 p_data += i_payload;
1891 i_data -= i_payload;
1899 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1900 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1901 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1904 uint8_t *p_data = in->p_buffer;
1905 int i_data = in->i_buffer;
1907 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1910 int b_v_bit = 0; // no pesky error resilience
1911 int i_plen = 0; // normally plen=0 for PSC packet
1912 int i_pebit = 0; // because plen=0
1917 return VLC_EGENERIC;
1919 if( p_data[0] || p_data[1] )
1921 return VLC_EGENERIC;
1923 /* remove 2 leading 0 bytes */
1926 i_count = ( i_data + i_max - 1 ) / i_max;
1928 for( i = 0; i < i_count; i++ )
1930 int i_payload = __MIN( i_max, i_data );
1931 block_t *out = block_New( p_stream,
1932 RTP_H263_PAYLOAD_START + i_payload );
1933 b_p_bit = (i == 0) ? 1 : 0;
1934 h = ( b_p_bit << 10 )|
1939 /* rtp common header */
1940 //b_m_bit = 1; // always contains end of frame
1941 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1942 in->i_pts > 0 ? in->i_pts : in->i_dts );
1945 out->p_buffer[12] = ( h >> 8 )&0xff;
1946 out->p_buffer[13] = ( h )&0xff;
1947 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1949 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1950 out->i_dts = in->i_dts + i * in->i_length / i_count;
1951 out->i_length = in->i_length / i_count;
1953 rtp_packetize_send( id, out );
1955 p_data += i_payload;
1956 i_data -= i_payload;
1963 static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1964 const uint8_t *p_data, int i_data, int64_t i_pts, int64_t i_dts, vlc_bool_t b_last, int64_t i_length )
1966 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1973 i_nal_hdr = p_data[3];
1974 i_nal_type = i_nal_hdr&0x1f;
1975 if( i_nal_type == 7 || i_nal_type == 8 )
1977 /* XXX Why do you want to remove them ? It will break streaming with
1978 * SPS/PPS change (broadcast) ? */
1982 /* Skip start code */
1987 if( i_data <= i_max )
1989 /* Single NAL unit packet */
1990 block_t *out = block_New( p_stream, 12 + i_data );
1992 out->i_length = i_length;
1995 rtp_packetize_common( id, out, b_last, i_pts );
1996 out->i_buffer = 12 + i_data;
1998 memcpy( &out->p_buffer[12], p_data, i_data );
2000 rtp_packetize_send( id, out );
2004 /* FU-A Fragmentation Unit without interleaving */
2005 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
2011 for( i = 0; i < i_count; i++ )
2013 const int i_payload = __MIN( i_data, i_max-2 );
2014 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
2015 out->i_dts = i_dts + i * i_length / i_count;
2016 out->i_length = i_length / i_count;
2019 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
2020 out->i_buffer = 14 + i_payload;
2023 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
2025 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
2026 memcpy( &out->p_buffer[14], p_data, i_payload );
2028 rtp_packetize_send( id, out );
2030 i_data -= i_payload;
2031 p_data += i_payload;
2037 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
2040 const uint8_t *p_buffer = in->p_buffer;
2041 int i_buffer = in->i_buffer;
2043 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
2049 /* Split nal units */
2050 while( i_buffer > 4 )
2053 int i_size = i_buffer;
2054 int i_skip = i_buffer;
2056 /* search nal end */
2057 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
2059 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
2061 /* we found another startcode */
2062 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
2067 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
2068 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
2069 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
2070 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2078 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2081 int i_max = id->i_mtu - 14; /* payload max in one packet */
2082 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2084 uint8_t *p_data = in->p_buffer;
2085 int i_data = in->i_buffer;
2088 /* Only supports octet-aligned mode */
2089 for( i = 0; i < i_count; i++ )
2091 int i_payload = __MIN( i_max, i_data );
2092 block_t *out = block_New( p_stream, 14 + i_payload );
2094 /* rtp common header */
2095 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2096 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2097 /* Payload header */
2098 out->p_buffer[12] = 0xF0; /* CMR */
2099 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2101 /* FIXME: are we fed multiple frames ? */
2102 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2104 out->i_buffer = 14 + i_payload-1;
2105 out->i_dts = in->i_dts + i * in->i_length / i_count;
2106 out->i_length = in->i_length / i_count;
2108 rtp_packetize_send( id, out );
2110 p_data += i_payload;
2111 i_data -= i_payload;