1 /*****************************************************************************
2 * rtp.c: rtp stream output module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
36 #include <vlc_block.h>
38 #include <vlc_httpd.h>
40 #include <vlc_network.h>
41 #include <vlc_charset.h>
42 #include <vlc_strings.h>
46 /*****************************************************************************
48 *****************************************************************************/
52 #define DST_TEXT N_("Destination")
53 #define DST_LONGTEXT N_( \
54 "This is the output URL that will be used." )
55 #define SDP_TEXT N_("SDP")
56 #define SDP_LONGTEXT N_( \
57 "This allows you to specify how the SDP (Session Descriptor) for this RTP "\
58 "session will be made available. You must use an url: http://location to " \
59 "access the SDP via HTTP, rtsp://location for RTSP access, and sap:// " \
60 "for the SDP to be announced via SAP." )
61 #define MUX_TEXT N_("Muxer")
62 #define MUX_LONGTEXT N_( \
63 "This allows you to specify the muxer used for the streaming output. " \
64 "Default is to use no muxer (standard RTP stream)." )
66 #define NAME_TEXT N_("Session name")
67 #define NAME_LONGTEXT N_( \
68 "This is the name of the session that will be announced in the SDP " \
69 "(Session Descriptor)." )
70 #define DESC_TEXT N_("Session description")
71 #define DESC_LONGTEXT N_( \
72 "This allows you to give a broader description of the stream, that will " \
73 "be announced in the SDP (Session Descriptor)." )
74 #define URL_TEXT N_("Session URL")
75 #define URL_LONGTEXT N_( \
76 "This allows you to give an URL with more details about the stream " \
77 "(often the website of the streaming organization), that will " \
78 "be announced in the SDP (Session Descriptor)." )
79 #define EMAIL_TEXT N_("Session email")
80 #define EMAIL_LONGTEXT N_( \
81 "This allows you to give a contact mail address for the stream, that will " \
82 "be announced in the SDP (Session Descriptor)." )
83 #define PORT_TEXT N_("Port")
84 #define PORT_LONGTEXT N_( \
85 "This allows you to specify the base port for the RTP streaming." )
86 #define PORT_AUDIO_TEXT N_("Audio port")
87 #define PORT_AUDIO_LONGTEXT N_( \
88 "This allows you to specify the default audio port for the RTP streaming." )
89 #define PORT_VIDEO_TEXT N_("Video port")
90 #define PORT_VIDEO_LONGTEXT N_( \
91 "This allows you to specify the default video port for the RTP streaming." )
93 #define TTL_TEXT N_("Hop limit (TTL)")
94 #define TTL_LONGTEXT N_( \
95 "This is the hop limit (also known as \"Time-To-Live\" or TTL) of " \
96 "the multicast packets sent by the stream output (0 = use operating " \
97 "system built-in default).")
99 #define RFC3016_TEXT N_("MP4A LATM")
100 #define RFC3016_LONGTEXT N_( \
101 "This allows you to stream MPEG4 LATM audio streams (see RFC3016)." )
103 static int Open ( vlc_object_t * );
104 static void Close( vlc_object_t * );
106 #define SOUT_CFG_PREFIX "sout-rtp-"
109 set_shortname( _("RTP"));
110 set_description( _("RTP stream output") );
111 set_capability( "sout stream", 0 );
112 add_shortcut( "rtp" );
113 set_category( CAT_SOUT );
114 set_subcategory( SUBCAT_SOUT_STREAM );
116 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
117 DST_LONGTEXT, VLC_TRUE );
118 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
119 SDP_LONGTEXT, VLC_TRUE );
120 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
121 MUX_LONGTEXT, VLC_TRUE );
123 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
124 NAME_LONGTEXT, VLC_TRUE );
125 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
126 DESC_LONGTEXT, VLC_TRUE );
127 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
128 URL_LONGTEXT, VLC_TRUE );
129 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
130 EMAIL_LONGTEXT, VLC_TRUE );
132 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
133 PORT_LONGTEXT, VLC_TRUE );
134 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
135 PORT_AUDIO_LONGTEXT, VLC_TRUE );
136 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
137 PORT_VIDEO_LONGTEXT, VLC_TRUE );
139 add_integer( SOUT_CFG_PREFIX "ttl", 0, NULL, TTL_TEXT,
140 TTL_LONGTEXT, VLC_TRUE );
142 add_bool( SOUT_CFG_PREFIX "mp4a-latm", 0, NULL, RFC3016_TEXT,
143 RFC3016_LONGTEXT, VLC_FALSE );
145 set_callbacks( Open, Close );
148 /*****************************************************************************
149 * Exported prototypes
150 *****************************************************************************/
151 static const char *ppsz_sout_options[] = {
152 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
153 "description", "url","email", "mp4a-latm", NULL
156 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
157 static int Del ( sout_stream_t *, sout_stream_id_t * );
158 static int Send( sout_stream_t *, sout_stream_id_t *,
161 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
163 static void SDPHandleUrl( sout_stream_t *, char * );
165 static int SapSetup( sout_stream_t *p_stream );
166 static int FileSetup( sout_stream_t *p_stream );
167 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
169 struct sout_stream_sys_t
175 vlc_mutex_t lock_sdp;
177 char *psz_session_name;
178 char *psz_session_description;
179 char *psz_session_url;
180 char *psz_session_email;
183 vlc_bool_t b_export_sdp_file;
186 vlc_bool_t b_export_sap;
187 session_descriptor_t *p_session;
189 httpd_host_t *p_httpd_host;
190 httpd_file_t *p_httpd_file;
195 char *psz_destination;
202 /* when need to use a private one or when using muxer */
205 /* in case we do TS/PS over rtp */
207 sout_access_out_t *p_access;
209 sout_access_out_t *p_grab;
211 uint32_t i_timestamp_start;
218 sout_stream_id_t **es;
221 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
224 struct sout_stream_id_t
226 sout_stream_t *p_stream;
228 uint8_t i_payload_type;
230 uint32_t i_timestamp_start;
241 /* Packetizer specific fields */
242 pf_rtp_packetizer_t pf_packetize;
245 /* for sending the packets */
246 sout_access_out_t *p_access;
248 vlc_mutex_t lock_sink;
250 sout_access_out_t **sink;
251 rtsp_stream_id_t *rtsp_id;
254 sout_input_t *p_input;
258 /*****************************************************************************
260 *****************************************************************************/
261 static int Open( vlc_object_t *p_this )
263 sout_stream_t *p_stream = (sout_stream_t*)p_this;
264 sout_instance_t *p_sout = p_stream->p_sout;
265 sout_stream_sys_t *p_sys = NULL;
266 config_chain_t *p_cfg = NULL;
268 vlc_bool_t b_rtsp = VLC_FALSE;
270 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
271 ppsz_sout_options, p_stream->p_cfg );
273 p_sys = malloc( sizeof( sout_stream_sys_t ) );
277 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
278 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
279 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
280 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
281 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
283 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
284 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
285 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
287 p_sys->psz_sdp_file = NULL;
289 if( p_sys->i_port_audio == p_sys->i_port_video )
291 msg_Err( p_stream, "audio and video port cannot be the same" );
292 p_sys->i_port_audio = 0;
293 p_sys->i_port_video = 0;
296 if( !p_sys->psz_session_name )
298 if( p_sys->psz_destination )
299 p_sys->psz_session_name = strdup( p_sys->psz_destination );
301 p_sys->psz_session_name = strdup( "NONE" );
304 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
306 if( !strcmp( p_cfg->psz_name, "sdp" ) )
308 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
318 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
319 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
321 free( val2.psz_string );
324 if( p_sys->psz_destination == NULL )
328 msg_Err( p_stream, "missing destination and not in rtsp mode" );
333 else if( p_sys->i_port <= 0 )
335 msg_Err( p_stream, "invalid port" );
340 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
341 if( p_sys->i_ttl == 0 )
343 /* Normally, we should let the default hop limit up to the core,
344 * but we have to know it to build our SDP properly, which is why
345 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
347 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
349 if( p_sys->i_ttl > 255 )
351 /* must not exceed 999 once formatted */
353 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
355 p_sys->i_payload_type = 96;
359 p_sys->psz_sdp = NULL;
361 p_sys->i_sdp_id = mdate();
362 p_sys->i_sdp_version = 1;
363 p_sys->psz_sdp = NULL;
365 p_sys->b_export_sap = VLC_FALSE;
366 p_sys->b_export_sdp_file = VLC_FALSE;
367 p_sys->p_session = NULL;
369 p_sys->p_httpd_host = NULL;
370 p_sys->p_httpd_file = NULL;
372 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
373 vlc_mutex_init( p_stream, &p_sys->lock_es );
375 p_stream->pf_add = Add;
376 p_stream->pf_del = Del;
377 p_stream->pf_send = Send;
379 p_stream->p_sys = p_sys;
381 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
382 if( *val.psz_string )
384 sout_access_out_t *p_grab;
385 const char *psz_rtpmap;
386 char url[NI_MAXHOST + 8], access[22], psz_ttl[5], ipv;
390 msg_Err( p_stream, "muxing is not supported in RTSP mode" );
394 else if( p_sys->psz_destination == NULL )
396 msg_Err( p_stream, "RTP needs a destination when muxing" );
401 /* Check muxer type */
402 if( !strncasecmp( val.psz_string, "ps", 2 )
403 || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
405 psz_rtpmap = "MP2P/90000";
407 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
409 psz_rtpmap = "MP2T/90000";
410 p_sys->i_payload_type = 33;
414 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
419 /* create the access out */
420 if( p_sys->i_ttl > 0 )
422 sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl );
426 strcat( access, "udp{raw,rtcp}" );
429 /* FIXME: we should check that url is a numerical address, otherwise
430 * the SDP will be quite broken (regardless of the IP protocol version)
431 * Also it might be IPv6 with no ':' if it is a DNS name.
433 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
435 /* IPv6 needs brackets if not already present */
436 if ((ipv == '6') && (p_sys->psz_destination[0] != '['))
437 snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination,
440 snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination,
443 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
445 msg_Err( p_stream, "cannot create the access out for %s://%s",
450 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
451 if( p_sys->i_mtu <= 16 + MTU_REDUCE )
453 /* better than nothing */
456 p_sys->i_mtu -= MTU_REDUCE;
458 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
459 p_grab = p_sys->p_grab =
460 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
461 p_grab->p_module = NULL;
462 p_grab->p_sout = p_sout;
463 p_grab->psz_access = strdup( "grab" );
464 p_grab->p_cfg = NULL;
465 p_grab->psz_path = strdup( "" );
466 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
467 p_grab->pf_seek = NULL;
468 p_grab->pf_write = AccessOutGrabberWrite;
471 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
473 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
474 sout_AccessOutDelete( p_sys->p_grab );
475 sout_AccessOutDelete( p_sys->p_access );
480 /* create the SDP for a muxed stream (only once) */
481 /* FIXME http://www.faqs.org/rfcs/rfc4566.html
482 o= - should be local username (no spaces allowed)
483 o= time should be hashed with some other value to garantee uniqueness
484 o= don't use the localhost address. use fully qualified domain name or IP4 address
485 a= source-filter: we need our source address
486 a= x-plgroup: (missing)
487 RTP packets need to get the correct src IP address */
489 && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) )
491 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
492 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
499 asprintf( &p_sys->psz_sdp,
501 /* FIXME: source address not known :( */
502 "o=- "I64Fu" %d IN IP%c %s\r\n"
508 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
509 "a=tool:"PACKAGE_STRING"\r\n"
511 "a=type:broadcast\r\n"
512 "m=video %d RTP/AVP %d\r\n"
513 "a=rtpmap:%d %s\r\n",
514 p_sys->i_sdp_id, p_sys->i_sdp_version,
515 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
516 p_sys->psz_session_name,
517 p_sys->psz_session_description,
518 p_sys->psz_session_url,
519 p_sys->psz_session_email,
520 ipv, p_sys->psz_destination, psz_ttl,
521 p_sys->i_port, p_sys->i_payload_type,
522 p_sys->i_payload_type, psz_rtpmap );
523 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
525 /* create the rtp context */
526 p_sys->ssrc[0] = rand()&0xff;
527 p_sys->ssrc[1] = rand()&0xff;
528 p_sys->ssrc[2] = rand()&0xff;
529 p_sys->ssrc[3] = rand()&0xff;
530 p_sys->i_sequence = rand()&0xffff;
531 p_sys->i_timestamp_start = rand()&0xffffffff;
532 p_sys->packet = NULL;
537 p_sys->p_access = NULL;
538 p_sys->p_grab = NULL;
540 free( val.psz_string );
543 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
544 if( *val.psz_string )
546 config_chain_t *p_cfg;
548 SDPHandleUrl( p_stream, val.psz_string );
550 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
552 if( !strcmp( p_cfg->psz_name, "sdp" ) )
554 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
557 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
558 if( !strcmp( p_cfg->psz_value, val.psz_string ) )
561 SDPHandleUrl( p_stream, p_cfg->psz_value );
565 free( val.psz_string );
567 /* update p_sout->i_out_pace_nocontrol */
568 p_stream->p_sout->i_out_pace_nocontrol++;
573 /*****************************************************************************
575 *****************************************************************************/
576 static void Close( vlc_object_t * p_this )
578 sout_stream_t *p_stream = (sout_stream_t*)p_this;
579 sout_stream_sys_t *p_sys = p_stream->p_sys;
581 /* update p_sout->i_out_pace_nocontrol */
582 p_stream->p_sout->i_out_pace_nocontrol--;
586 sout_MuxDelete( p_sys->p_mux );
587 sout_AccessOutDelete( p_sys->p_access );
588 sout_AccessOutDelete( p_sys->p_grab );
591 block_Release( p_sys->packet );
593 if( p_sys->b_export_sap )
596 SapSetup( p_stream );
600 if( p_sys->rtsp != NULL )
601 RtspUnsetup( p_sys->rtsp );
603 vlc_mutex_destroy( &p_sys->lock_sdp );
605 if( p_sys->p_httpd_file )
606 httpd_FileDelete( p_sys->p_httpd_file );
608 if( p_sys->p_httpd_host )
609 httpd_HostDelete( p_sys->p_httpd_host );
611 if( p_sys->psz_session_name )
612 free( p_sys->psz_session_name );
614 if( p_sys->psz_session_description )
615 free( p_sys->psz_session_description );
617 if( p_sys->psz_session_url )
618 free( p_sys->psz_session_url );
620 if( p_sys->psz_session_email )
621 free( p_sys->psz_session_email );
624 free( p_sys->psz_sdp );
626 if( p_sys->b_export_sdp_file )
629 unlink( p_sys->psz_sdp_file );
631 free( p_sys->psz_sdp_file );
633 free( p_sys->psz_destination );
637 /*****************************************************************************
639 *****************************************************************************/
640 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
642 sout_stream_sys_t *p_sys = p_stream->p_sys;
645 vlc_UrlParse( &url, psz_url, 0 );
646 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
648 if( p_sys->p_httpd_file )
650 msg_Err( p_stream, "you can use sdp=http:// only once" );
654 if( HttpSetup( p_stream, &url ) )
656 msg_Err( p_stream, "cannot export SDP as HTTP" );
659 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
661 if( p_sys->rtsp != NULL )
663 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
667 /* FIXME test if destination is multicast or no destination at all FIXME */
668 p_sys->rtsp = RtspSetup( p_stream, &url );
669 if( p_sys->rtsp == NULL )
671 msg_Err( p_stream, "cannot export SDP as RTSP" );
674 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
675 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
677 p_sys->b_export_sap = VLC_TRUE;
678 SapSetup( p_stream );
680 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
682 if( p_sys->b_export_sdp_file )
684 msg_Err( p_stream, "you can use sdp=file:// only once" );
687 p_sys->b_export_sdp_file = VLC_TRUE;
688 psz_url = &psz_url[5];
689 if( psz_url[0] == '/' && psz_url[1] == '/' )
691 p_sys->psz_sdp_file = strdup( psz_url );
695 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
700 vlc_UrlClean( &url );
703 /*****************************************************************************
705 *****************************************************************************/
706 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
707 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
708 o= - should be local username (no spaces allowed)
709 o= time should be hashed with some other value to garantue uniqueness
710 o= we need IP6 support?
711 o= don't use the localhost address. use fully qualified domain name or IP4 address
712 p= international phone number (pass via vars?)
714 a= recvonly (missing)
715 a= type:broadcast (missing)
716 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
717 a= x-plgroup: (missing)
718 RTP packets need to get the correct src IP address */
720 char *SDPGenerate( const sout_stream_t *p_stream, const char *rtsp_url )
722 const sout_stream_sys_t *p_sys = p_stream->p_sys;
724 const char *psz_destination = p_sys->psz_destination;
725 char *psz_sdp, *p, ipv;
728 * When we have a fixed destination (typically when we do multicast),
729 * we need to put the actual port numbers in the SDP.
730 * When there is no fixed destination, we only support RTSP unicast
731 * on-demand setup, so we should rather let the clients decide which ports
733 * When there is both a fixed destination and RTSP unicast, we need to
734 * put port numbers used by the fixed destination, otherwise the SDP would
735 * become totally incorrect for multicast use. It should be noted that
736 * port numbers from SDP with RTSP are only "recommendation" from the
737 * server to the clients (per RFC2326), so only broken clients will fail
738 * to handle this properly. There is no solution but to use two differents
739 * output chain with two different RTSP URLs if you need to handle this
742 int inclport = (psz_destination != NULL);
744 /* FIXME: breaks IP version check on unknown destination */
745 if( psz_destination == NULL )
746 psz_destination = "0.0.0.0";
748 i_size = sizeof( "v=0\r\n" ) +
749 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
750 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
751 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
752 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
753 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
754 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
755 sizeof( "b=RR:0\r\n" ) +
756 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
757 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
758 strlen( psz_destination ) ;
759 for( i = 0; i < p_sys->i_es; i++ )
761 sout_stream_id_t *id = p_sys->es[i];
763 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
766 i_size += strlen( "b=AS: *\r\n") + 10;
770 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
774 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
776 if( rtsp_url != NULL )
778 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( rtsp_url ) + 10;
783 i_size += strlen( "m=video 12345 RTP/AVP 123\r\n" );
786 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
788 p = psz_sdp = malloc( i_size );
789 p += sprintf( p, "v=0\r\n" );
790 p += sprintf( p, "o=- "I64Fu" %d IN IP%c %s\r\n",
791 p_sys->i_sdp_id, p_sys->i_sdp_version,
792 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
793 if( *p_sys->psz_session_name )
794 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
795 if( *p_sys->psz_session_description )
796 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
797 if( *p_sys->psz_session_url )
798 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
799 if( *p_sys->psz_session_email )
800 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
802 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
803 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
805 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
808 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
810 /* Add the deprecated TTL field if it is an IPv4 multicast address */
811 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
813 p += sprintf( p, "\r\n" );
814 p += sprintf( p, "b=RR:0\r\n" );
816 for( i = 0; i < p_sys->i_es; i++ )
818 sout_stream_id_t *id = p_sys->es[i];
819 const char *mime_major; /* major MIME type */
821 if( id->i_cat == AUDIO_ES )
822 mime_major = "audio";
824 if( id->i_cat == VIDEO_ES )
825 mime_major = "video";
829 p += sprintf( p, "m=%s %d RTP/AVP %d\r\n", mime_major,
830 inclport * id->i_port, id->i_payload_type );
834 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
838 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
843 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
846 if( rtsp_url != NULL )
848 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
853 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
854 p_sys->i_port, p_sys->i_payload_type );
860 /*****************************************************************************
862 *****************************************************************************/
863 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
864 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
865 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
866 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
867 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
868 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
869 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
870 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
871 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
872 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
873 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
875 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
877 static const char hex[16] = "0123456789abcdef";
880 for( i = 0; i < i_data; i++ )
882 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
883 s[2*i+1] = hex[(p_data[i] )&0xf];
888 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
890 sout_instance_t *p_sout = p_stream->p_sout;
891 sout_stream_sys_t *p_sys = p_stream->p_sys;
892 sout_stream_id_t *id;
893 sout_access_out_t *p_access = NULL;
897 if( p_sys->p_mux != NULL )
899 sout_input_t *p_input = NULL;
900 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
902 msg_Err( p_stream, "cannot add this stream to the muxer" );
906 id = malloc( sizeof( sout_stream_id_t ) );
907 memset( id, 0, sizeof( sout_stream_id_t ) );
909 id->p_input = p_input;
910 id->pf_packetize= NULL;
917 /* Choose the port */
919 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
921 i_port = p_sys->i_port_audio;
922 p_sys->i_port_audio = 0;
924 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
926 i_port = p_sys->i_port_video;
927 p_sys->i_port_video = 0;
931 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
933 i_port = p_sys->i_port;
940 if( p_sys->psz_destination )
943 char url[NI_MAXHOST + 8];
945 /* first try to create the access out */
946 if( p_sys->i_ttl > 0 )
948 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
950 access[sizeof( access ) - 1] = '\0';
953 strcpy( access, "udp{raw,rtcp}" );
955 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
956 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
957 p_sys->psz_destination, i_port );
958 url[sizeof( url ) - 1] = '\0';
960 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
962 msg_Err( p_stream, "cannot create the access out for %s://%s",
966 msg_Dbg( p_stream, "access out %s:%s", access, url );
969 /* not create the rtp specific stuff */
970 id = malloc( sizeof( sout_stream_id_t ) );
971 memset( id, 0, sizeof( sout_stream_id_t ) );
972 id->p_stream = p_stream;
973 id->p_access = p_access;
975 id->psz_rtpmap = NULL;
980 vlc_mutex_init( p_stream, &id->lock_sink );
984 switch( p_fmt->i_codec )
986 case VLC_FOURCC( 's', '1', '6', 'b' ):
987 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
989 id->i_payload_type = 11;
991 else if( p_fmt->audio.i_channels == 2 &&
992 p_fmt->audio.i_rate == 44100 )
994 id->i_payload_type = 10;
998 id->i_payload_type = p_sys->i_payload_type++;
1000 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
1001 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
1002 p_fmt->audio.i_channels );
1003 id->i_clock_rate = p_fmt->audio.i_rate;
1004 id->pf_packetize = rtp_packetize_l16;
1006 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
1007 id->i_payload_type = p_sys->i_payload_type++;
1008 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
1009 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
1010 p_fmt->audio.i_channels );
1011 id->i_clock_rate = p_fmt->audio.i_rate;
1012 id->pf_packetize = rtp_packetize_l8;
1014 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
1015 id->i_payload_type = 14;
1016 id->i_clock_rate = 90000;
1017 id->psz_rtpmap = strdup( "MPA/90000" );
1018 id->pf_packetize = rtp_packetize_mpa;
1020 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
1021 id->i_payload_type = 32;
1022 id->i_clock_rate = 90000;
1023 id->psz_rtpmap = strdup( "MPV/90000" );
1024 id->pf_packetize = rtp_packetize_mpv;
1026 case VLC_FOURCC( 'a', '5', '2', ' ' ):
1027 id->i_payload_type = p_sys->i_payload_type++;
1028 id->i_clock_rate = 90000;
1029 id->psz_rtpmap = strdup( "ac3/90000" );
1030 id->pf_packetize = rtp_packetize_ac3;
1032 case VLC_FOURCC( 'H', '2', '6', '3' ):
1033 id->i_payload_type = p_sys->i_payload_type++;
1034 id->i_clock_rate = 90000;
1035 id->psz_rtpmap = strdup( "H263-1998/90000" );
1036 id->pf_packetize = rtp_packetize_h263;
1038 case VLC_FOURCC( 'h', '2', '6', '4' ):
1039 id->i_payload_type = p_sys->i_payload_type++;
1040 id->i_clock_rate = 90000;
1041 id->psz_rtpmap = strdup( "H264/90000" );
1042 id->pf_packetize = rtp_packetize_h264;
1043 id->psz_fmtp = NULL;
1045 if( p_fmt->i_extra > 0 )
1047 uint8_t *p_buffer = p_fmt->p_extra;
1048 int i_buffer = p_fmt->i_extra;
1049 char *p_64_sps = NULL;
1050 char *p_64_pps = NULL;
1053 while( i_buffer > 4 &&
1054 p_buffer[0] == 0 && p_buffer[1] == 0 &&
1055 p_buffer[2] == 0 && p_buffer[3] == 1 )
1057 const int i_nal_type = p_buffer[4]&0x1f;
1061 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
1064 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
1066 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
1068 /* we found another startcode */
1073 if( i_nal_type == 7 )
1075 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1076 sprintf_hexa( hexa, &p_buffer[5], 3 );
1078 else if( i_nal_type == 8 )
1080 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
1086 if( p_64_sps && p_64_pps )
1087 asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
1094 id->psz_fmtp = strdup( "packetization-mode=1" );
1097 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1099 char hexa[2*p_fmt->i_extra +1];
1101 id->i_payload_type = p_sys->i_payload_type++;
1102 id->i_clock_rate = 90000;
1103 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1104 id->pf_packetize = rtp_packetize_split;
1105 if( p_fmt->i_extra > 0 )
1107 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1108 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1109 sprintf( id->psz_fmtp,
1110 "profile-level-id=3; config=%s;", hexa );
1114 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1116 id->i_payload_type = p_sys->i_payload_type++;
1117 id->i_clock_rate = p_fmt->audio.i_rate;
1121 char hexa[2*p_fmt->i_extra +1];
1123 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1124 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1125 id->pf_packetize = rtp_packetize_mp4a;
1126 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1127 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1128 sprintf( id->psz_fmtp,
1129 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1130 "config=%s; SizeLength=13;IndexLength=3; "
1131 "IndexDeltaLength=3; Profile=1;", hexa );
1137 unsigned char config[6];
1138 unsigned int aacsrates[15] = {
1139 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1140 16000, 12000, 11025, 8000, 7350, 0, 0 };
1142 for( i = 0; i < 15; i++ )
1143 if( p_fmt->audio.i_rate == aacsrates[i] )
1149 config[3]=p_fmt->audio.i_channels<<4;
1153 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1154 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1155 id->pf_packetize = rtp_packetize_mp4a_latm;
1156 sprintf_hexa( hexa, config, 6 );
1157 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1158 "object=2; cpresent=0; config=%s", hexa );
1162 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1163 id->i_payload_type = p_sys->i_payload_type++;
1164 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1165 "AMR/8000/2" : "AMR/8000" );
1166 id->psz_fmtp = strdup( "octet-align=1" );
1167 id->i_clock_rate = p_fmt->audio.i_rate;
1168 id->pf_packetize = rtp_packetize_amr;
1170 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1171 id->i_payload_type = p_sys->i_payload_type++;
1172 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1173 "AMR-WB/16000/2" : "AMR-WB/16000" );
1174 id->psz_fmtp = strdup( "octet-align=1" );
1175 id->i_clock_rate = p_fmt->audio.i_rate;
1176 id->pf_packetize = rtp_packetize_amr;
1180 msg_Err( p_stream, "cannot add this stream (unsupported "
1181 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1184 sout_AccessOutDelete( p_access );
1189 id->i_cat = p_fmt->i_cat;
1191 id->ssrc[0] = rand()&0xff;
1192 id->ssrc[1] = rand()&0xff;
1193 id->ssrc[2] = rand()&0xff;
1194 id->ssrc[3] = rand()&0xff;
1195 id->i_sequence = rand()&0xffff;
1196 id->i_timestamp_start = rand()&0xffffffff;
1197 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1199 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1200 if( id->i_mtu <= 16 + MTU_REDUCE )
1202 /* better than nothing */
1205 id->i_mtu -= MTU_REDUCE;
1206 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1208 if( p_sys->rtsp != NULL )
1209 id->rtsp_id = RtspAddId( p_sys->rtsp, id, p_sys->i_es,
1210 p_sys->psz_destination,
1211 p_sys->i_ttl, id->i_port, id->i_port + 1 );
1213 /* Update p_sys context */
1214 vlc_mutex_lock( &p_sys->lock_es );
1215 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1216 vlc_mutex_unlock( &p_sys->lock_es );
1218 psz_sdp = SDPGenerate( p_stream, NULL );
1220 vlc_mutex_lock( &p_sys->lock_sdp );
1221 free( p_sys->psz_sdp );
1222 p_sys->psz_sdp = psz_sdp;
1223 vlc_mutex_unlock( &p_sys->lock_sdp );
1225 p_sys->i_sdp_version++;
1227 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
1229 /* Update SDP (sap/file) */
1230 if( p_sys->b_export_sap ) SapSetup( p_stream );
1231 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1236 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1238 sout_stream_sys_t *p_sys = p_stream->p_sys;
1240 vlc_mutex_lock( &p_sys->lock_es );
1241 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1242 vlc_mutex_unlock( &p_sys->lock_es );
1245 if( id->i_port > 0 )
1247 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1248 p_sys->i_port_audio = id->i_port;
1249 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1250 p_sys->i_port_video = id->i_port;
1255 if( id->psz_rtpmap )
1257 free( id->psz_rtpmap );
1261 free( id->psz_fmtp );
1263 sout_AccessOutDelete( id->p_access );
1265 else if( id->p_input )
1267 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1270 RtspDelId( p_sys->rtsp, id->rtsp_id );
1272 vlc_mutex_destroy( &id->lock_sink );
1275 /* Update SDP (sap/file) */
1276 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1277 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1283 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1288 if( p_stream->p_sys->p_mux )
1290 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1296 p_next = p_buffer->p_next;
1297 if( id->pf_packetize( p_stream, id, p_buffer ) )
1301 block_Release( p_buffer );
1309 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1312 sout_stream_sys_t *p_sys = p_stream->p_sys;
1314 int64_t i_dts = p_buffer->i_dts;
1315 uint32_t i_timestamp = i_dts * 9 / 100;
1317 uint8_t *p_data = p_buffer->p_buffer;
1318 unsigned int i_data = p_buffer->i_buffer;
1319 unsigned int i_max = p_sys->i_mtu - 12;
1321 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1325 unsigned int i_size;
1327 /* output complete packet */
1328 if( p_sys->packet &&
1329 p_sys->packet->i_buffer + i_data > i_max )
1331 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1332 p_sys->packet = NULL;
1335 if( p_sys->packet == NULL )
1337 /* allocate a new packet */
1338 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1339 p_sys->packet->p_buffer[ 0] = 0x80;
1340 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1341 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1342 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1343 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1344 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1345 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1346 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1347 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1348 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1349 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1350 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1351 p_sys->packet->i_buffer = 12;
1353 p_sys->packet->i_dts = i_dts;
1354 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1355 i_dts += p_sys->packet->i_length;
1357 p_sys->i_sequence++;
1360 i_size = __MIN( i_data,
1361 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1363 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1366 p_sys->packet->i_buffer += i_size;
1374 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1377 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1379 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1385 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1387 p_next = p_buffer->p_next;
1388 block_Release( p_buffer );
1395 /****************************************************************************
1397 ****************************************************************************/
1398 static int SapSetup( sout_stream_t *p_stream )
1400 sout_stream_sys_t *p_sys = p_stream->p_sys;
1401 sout_instance_t *p_sout = p_stream->p_sout;
1402 announce_method_t *p_method = sout_SAPMethod();
1404 /* Remove the previous session */
1405 if( p_sys->p_session != NULL)
1407 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1408 sout_AnnounceSessionDestroy( p_sys->p_session );
1409 p_sys->p_session = NULL;
1412 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1414 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1416 p_sys->psz_destination,
1420 sout_MethodRelease( p_method );
1424 /****************************************************************************
1426 ****************************************************************************/
1427 static int FileSetup( sout_stream_t *p_stream )
1429 sout_stream_sys_t *p_sys = p_stream->p_sys;
1432 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1434 msg_Err( p_stream, "cannot open file '%s' (%s)",
1435 p_sys->psz_sdp_file, strerror(errno) );
1436 return VLC_EGENERIC;
1439 fprintf( f, "%s", p_sys->psz_sdp );
1445 /****************************************************************************
1447 ****************************************************************************/
1448 static int HttpCallback( httpd_file_sys_t *p_args,
1449 httpd_file_t *, uint8_t *p_request,
1450 uint8_t **pp_data, int *pi_data );
1452 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1454 sout_stream_sys_t *p_sys = p_stream->p_sys;
1456 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1457 if( p_sys->p_httpd_host )
1459 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1460 url->psz_path ? url->psz_path : "/",
1463 HttpCallback, (void*)p_sys );
1465 if( p_sys->p_httpd_file == NULL )
1467 return VLC_EGENERIC;
1472 static int HttpCallback( httpd_file_sys_t *p_args,
1473 httpd_file_t *f, uint8_t *p_request,
1474 uint8_t **pp_data, int *pi_data )
1476 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1478 vlc_mutex_lock( &p_sys->lock_sdp );
1479 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1481 *pi_data = strlen( p_sys->psz_sdp );
1482 *pp_data = malloc( *pi_data );
1483 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1490 vlc_mutex_unlock( &p_sys->lock_sdp );
1495 /****************************************************************************
1497 ****************************************************************************/
1498 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1499 int b_marker, int64_t i_pts )
1501 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1503 out->p_buffer[0] = 0x80;
1504 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1505 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1506 out->p_buffer[3] = ( id->i_sequence )&0xff;
1507 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1508 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1509 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1510 out->p_buffer[7] = ( i_timestamp )&0xff;
1512 out->p_buffer[ 8] = id->ssrc[0];
1513 out->p_buffer[ 9] = id->ssrc[1];
1514 out->p_buffer[10] = id->ssrc[2];
1515 out->p_buffer[11] = id->ssrc[3];
1521 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1524 vlc_mutex_lock( &id->lock_sink );
1525 for( i = 0; i < id->i_sink; i++ )
1527 sout_AccessOutWrite( id->sink[i], block_Duplicate( out ) );
1529 vlc_mutex_unlock( &id->lock_sink );
1533 sout_AccessOutWrite( id->p_access, out );
1537 block_Release( out );
1541 int rtp_add_sink( sout_stream_id_t *id, sout_access_out_t *access )
1543 vlc_mutex_lock( &id->lock_sink );
1544 TAB_APPEND( id->i_sink, id->sink, access );
1545 vlc_mutex_unlock( &id->lock_sink );
1549 void rtp_del_sink( sout_stream_id_t *id, sout_access_out_t *access )
1551 /* NOTE: must be safe to use if access is not a sink to id */
1552 vlc_mutex_lock( &id->lock_sink );
1553 TAB_REMOVE( id->i_sink, id->sink, access );
1554 vlc_mutex_unlock( &id->lock_sink );
1557 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1560 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1561 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1563 uint8_t *p_data = in->p_buffer;
1564 int i_data = in->i_buffer;
1567 for( i = 0; i < i_count; i++ )
1569 int i_payload = __MIN( i_max, i_data );
1570 block_t *out = block_New( p_stream, 16 + i_payload );
1572 /* rtp common header */
1573 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1575 out->p_buffer[12] = 0;
1576 out->p_buffer[13] = 0;
1577 /* fragment offset in the current frame */
1578 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1579 out->p_buffer[15] = ( (i*i_max) )&0xff;
1580 memcpy( &out->p_buffer[16], p_data, i_payload );
1582 out->i_buffer = 16 + i_payload;
1583 out->i_dts = in->i_dts + i * in->i_length / i_count;
1584 out->i_length = in->i_length / i_count;
1586 rtp_packetize_send( id, out );
1588 p_data += i_payload;
1589 i_data -= i_payload;
1596 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1599 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1600 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1602 uint8_t *p_data = in->p_buffer;
1603 int i_data = in->i_buffer;
1605 int b_sequence_start = 0;
1606 int i_temporal_ref = 0;
1607 int i_picture_coding_type = 0;
1608 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1609 int b_start_slice = 0;
1611 /* preparse this packet to get some info */
1612 if( in->i_buffer > 4 )
1614 uint8_t *p = p_data;
1615 int i_rest = in->i_buffer;
1619 while( i_rest > 4 &&
1620 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1634 /* sequence start code */
1635 b_sequence_start = 1;
1637 else if( *p == 0x00 && i_rest >= 4 )
1640 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1641 i_picture_coding_type = (p[2] >> 3)&0x07;
1643 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1644 i_picture_coding_type == 3 ) )
1646 i_ffv = (p[3] >> 2)&0x01;
1647 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1648 if( i_rest > 4 && i_picture_coding_type == 3 )
1650 i_fbv = (p[4]>>6)&0x01;
1651 i_bfc = (p[4]>>3)&0x07;
1655 else if( *p <= 0xaf )
1662 for( i = 0; i < i_count; i++ )
1664 int i_payload = __MIN( i_max, i_data );
1665 block_t *out = block_New( p_stream,
1667 uint32_t h = ( i_temporal_ref << 16 )|
1668 ( b_sequence_start << 13 )|
1669 ( b_start_slice << 12 )|
1670 ( i == i_count - 1 ? 1 << 11 : 0 )|
1671 ( i_picture_coding_type << 8 )|
1672 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1674 /* rtp common header */
1675 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1676 in->i_pts > 0 ? in->i_pts : in->i_dts );
1678 /* 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 */
1679 out->p_buffer[12] = ( h >> 24 )&0xff;
1680 out->p_buffer[13] = ( h >> 16 )&0xff;
1681 out->p_buffer[14] = ( h >> 8 )&0xff;
1682 out->p_buffer[15] = ( h )&0xff;
1684 memcpy( &out->p_buffer[16], p_data, i_payload );
1686 out->i_buffer = 16 + i_payload;
1687 out->i_dts = in->i_dts + i * in->i_length / i_count;
1688 out->i_length = in->i_length / i_count;
1690 rtp_packetize_send( id, out );
1692 p_data += i_payload;
1693 i_data -= i_payload;
1699 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1702 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1703 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1705 uint8_t *p_data = in->p_buffer;
1706 int i_data = in->i_buffer;
1709 for( i = 0; i < i_count; i++ )
1711 int i_payload = __MIN( i_max, i_data );
1712 block_t *out = block_New( p_stream, 14 + i_payload );
1714 /* rtp common header */
1715 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1717 out->p_buffer[12] = 1;
1719 out->p_buffer[13] = 0x00;
1721 memcpy( &out->p_buffer[14], p_data, i_payload );
1723 out->i_buffer = 14 + i_payload;
1724 out->i_dts = in->i_dts + i * in->i_length / i_count;
1725 out->i_length = in->i_length / i_count;
1727 rtp_packetize_send( id, out );
1729 p_data += i_payload;
1730 i_data -= i_payload;
1736 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1739 int i_max = id->i_mtu - 12; /* payload max in one packet */
1740 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1742 uint8_t *p_data = in->p_buffer;
1743 int i_data = in->i_buffer;
1746 for( i = 0; i < i_count; i++ )
1748 int i_payload = __MIN( i_max, i_data );
1749 block_t *out = block_New( p_stream, 12 + i_payload );
1751 /* rtp common header */
1752 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1753 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1754 memcpy( &out->p_buffer[12], p_data, i_payload );
1756 out->i_buffer = 12 + i_payload;
1757 out->i_dts = in->i_dts + i * in->i_length / i_count;
1758 out->i_length = in->i_length / i_count;
1760 rtp_packetize_send( id, out );
1762 p_data += i_payload;
1763 i_data -= i_payload;
1770 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1773 int i_max = id->i_mtu - 14; /* payload max in one packet */
1774 int latmhdrsize = in->i_buffer / 0xff + 1;
1775 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1777 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1778 int i_data = in->i_buffer;
1781 for( i = 0; i < i_count; i++ )
1783 int i_payload = __MIN( i_max, i_data );
1788 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1790 /* rtp common header */
1791 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1792 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1796 int tmp = in->i_buffer;
1798 p_header=out->p_buffer+12;
1808 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1810 out->i_buffer = 12 + latmhdrsize + i_payload;
1811 out->i_dts = in->i_dts + i * in->i_length / i_count;
1812 out->i_length = in->i_length / i_count;
1814 rtp_packetize_send( id, out );
1816 p_data += i_payload;
1817 i_data -= i_payload;
1823 static int rtp_packetize_l16( 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 )/4)*4;
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;
1857 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1860 int i_max = id->i_mtu - 12; /* payload max in one packet */
1861 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1863 uint8_t *p_data = in->p_buffer;
1864 int i_data = in->i_buffer;
1869 int i_payload = (__MIN( i_max, i_data )/2)*2;
1870 block_t *out = block_New( p_stream, 12 + i_payload );
1872 /* rtp common header */
1873 rtp_packetize_common( id, out, 0,
1874 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1875 memcpy( &out->p_buffer[12], p_data, i_payload );
1877 out->i_buffer = 12 + i_payload;
1878 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1879 out->i_length = in->i_length / i_count;
1881 rtp_packetize_send( id, out );
1883 p_data += i_payload;
1884 i_data -= i_payload;
1890 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1893 int i_max = id->i_mtu - 16; /* payload max in one packet */
1894 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1896 uint8_t *p_data = in->p_buffer;
1897 int i_data = in->i_buffer;
1900 for( i = 0; i < i_count; i++ )
1902 int i_payload = __MIN( i_max, i_data );
1903 block_t *out = block_New( p_stream, 16 + i_payload );
1905 /* rtp common header */
1906 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1907 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1909 /* AU headers length (bits) */
1910 out->p_buffer[12] = 0;
1911 out->p_buffer[13] = 2*8;
1912 /* for each AU length 13 bits + idx 3bits, */
1913 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1914 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1916 memcpy( &out->p_buffer[16], p_data, i_payload );
1918 out->i_buffer = 16 + i_payload;
1919 out->i_dts = in->i_dts + i * in->i_length / i_count;
1920 out->i_length = in->i_length / i_count;
1922 rtp_packetize_send( id, out );
1924 p_data += i_payload;
1925 i_data -= i_payload;
1933 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1934 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1935 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1938 uint8_t *p_data = in->p_buffer;
1939 int i_data = in->i_buffer;
1941 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1944 int b_v_bit = 0; // no pesky error resilience
1945 int i_plen = 0; // normally plen=0 for PSC packet
1946 int i_pebit = 0; // because plen=0
1951 return VLC_EGENERIC;
1953 if( p_data[0] || p_data[1] )
1955 return VLC_EGENERIC;
1957 /* remove 2 leading 0 bytes */
1960 i_count = ( i_data + i_max - 1 ) / i_max;
1962 for( i = 0; i < i_count; i++ )
1964 int i_payload = __MIN( i_max, i_data );
1965 block_t *out = block_New( p_stream,
1966 RTP_H263_PAYLOAD_START + i_payload );
1967 b_p_bit = (i == 0) ? 1 : 0;
1968 h = ( b_p_bit << 10 )|
1973 /* rtp common header */
1974 //b_m_bit = 1; // always contains end of frame
1975 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1976 in->i_pts > 0 ? in->i_pts : in->i_dts );
1979 out->p_buffer[12] = ( h >> 8 )&0xff;
1980 out->p_buffer[13] = ( h )&0xff;
1981 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1983 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1984 out->i_dts = in->i_dts + i * in->i_length / i_count;
1985 out->i_length = in->i_length / i_count;
1987 rtp_packetize_send( id, out );
1989 p_data += i_payload;
1990 i_data -= i_payload;
1997 static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1998 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 )
2000 const int i_max = id->i_mtu - 12; /* payload max in one packet */
2007 i_nal_hdr = p_data[3];
2008 i_nal_type = i_nal_hdr&0x1f;
2009 if( i_nal_type == 7 || i_nal_type == 8 )
2011 /* XXX Why do you want to remove them ? It will break streaming with
2012 * SPS/PPS change (broadcast) ? */
2016 /* Skip start code */
2021 if( i_data <= i_max )
2023 /* Single NAL unit packet */
2024 block_t *out = block_New( p_stream, 12 + i_data );
2026 out->i_length = i_length;
2029 rtp_packetize_common( id, out, b_last, i_pts );
2030 out->i_buffer = 12 + i_data;
2032 memcpy( &out->p_buffer[12], p_data, i_data );
2034 rtp_packetize_send( id, out );
2038 /* FU-A Fragmentation Unit without interleaving */
2039 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
2045 for( i = 0; i < i_count; i++ )
2047 const int i_payload = __MIN( i_data, i_max-2 );
2048 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
2049 out->i_dts = i_dts + i * i_length / i_count;
2050 out->i_length = i_length / i_count;
2053 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
2054 out->i_buffer = 14 + i_payload;
2057 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
2059 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
2060 memcpy( &out->p_buffer[14], p_data, i_payload );
2062 rtp_packetize_send( id, out );
2064 i_data -= i_payload;
2065 p_data += i_payload;
2071 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
2074 const uint8_t *p_buffer = in->p_buffer;
2075 int i_buffer = in->i_buffer;
2077 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
2083 /* Split nal units */
2084 while( i_buffer > 4 )
2087 int i_size = i_buffer;
2088 int i_skip = i_buffer;
2090 /* search nal end */
2091 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
2093 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
2095 /* we found another startcode */
2096 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
2101 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
2102 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
2103 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
2104 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2112 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2115 int i_max = id->i_mtu - 14; /* payload max in one packet */
2116 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2118 uint8_t *p_data = in->p_buffer;
2119 int i_data = in->i_buffer;
2122 /* Only supports octet-aligned mode */
2123 for( i = 0; i < i_count; i++ )
2125 int i_payload = __MIN( i_max, i_data );
2126 block_t *out = block_New( p_stream, 14 + i_payload );
2128 /* rtp common header */
2129 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2130 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2131 /* Payload header */
2132 out->p_buffer[12] = 0xF0; /* CMR */
2133 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2135 /* FIXME: are we fed multiple frames ? */
2136 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2138 out->i_buffer = 14 + i_payload-1;
2139 out->i_dts = in->i_dts + i * in->i_length / i_count;
2140 out->i_length = in->i_length / i_count;
2142 rtp_packetize_send( id, out );
2144 p_data += i_payload;
2145 i_data -= i_payload;