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 /*****************************************************************************
171 *****************************************************************************/
172 static int Open( vlc_object_t *p_this )
174 sout_stream_t *p_stream = (sout_stream_t*)p_this;
175 sout_instance_t *p_sout = p_stream->p_sout;
176 sout_stream_sys_t *p_sys = NULL;
177 config_chain_t *p_cfg = NULL;
179 vlc_bool_t b_rtsp = VLC_FALSE;
181 config_ChainParse( p_stream, SOUT_CFG_PREFIX,
182 ppsz_sout_options, p_stream->p_cfg );
184 p_sys = malloc( sizeof( sout_stream_sys_t ) );
188 p_sys->psz_destination = var_GetNonEmptyString( p_stream, SOUT_CFG_PREFIX "dst" );
189 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
190 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
191 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
192 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
194 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
195 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
196 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
198 p_sys->psz_sdp_file = NULL;
200 if( p_sys->i_port_audio == p_sys->i_port_video )
202 msg_Err( p_stream, "audio and video port cannot be the same" );
203 p_sys->i_port_audio = 0;
204 p_sys->i_port_video = 0;
207 if( !p_sys->psz_session_name )
209 if( p_sys->psz_destination )
210 p_sys->psz_session_name = strdup( p_sys->psz_destination );
212 p_sys->psz_session_name = strdup( "NONE" );
215 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
217 if( !strcmp( p_cfg->psz_name, "sdp" ) )
219 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
229 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
230 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
232 free( val2.psz_string );
235 if( p_sys->psz_destination == NULL )
239 msg_Err( p_stream, "missing destination and not in rtsp mode" );
244 else if( p_sys->i_port <= 0 )
246 msg_Err( p_stream, "invalid port" );
251 p_sys->i_ttl = var_GetInteger( p_stream, SOUT_CFG_PREFIX "ttl" );
252 if( p_sys->i_ttl == 0 )
254 /* Normally, we should let the default hop limit up to the core,
255 * but we have to know it to build our SDP properly, which is why
256 * we ask the core. FIXME: broken when neither sout-rtp-ttl nor
258 p_sys->i_ttl = config_GetInt( p_stream, "ttl" );
260 if( p_sys->i_ttl > 255 )
262 /* must not exceed 999 once formatted */
264 p_sys->b_latm = var_GetBool( p_stream, SOUT_CFG_PREFIX "mp4a-latm" );
266 p_sys->i_payload_type = 96;
271 p_sys->psz_sdp = NULL;
273 p_sys->i_sdp_id = mdate();
274 p_sys->i_sdp_version = 1;
275 p_sys->psz_sdp = NULL;
277 p_sys->b_export_sap = VLC_FALSE;
278 p_sys->b_export_sdp_file = VLC_FALSE;
279 p_sys->p_session = NULL;
281 p_sys->p_httpd_host = NULL;
282 p_sys->p_httpd_file = NULL;
283 p_sys->p_rtsp_host = NULL;
284 p_sys->p_rtsp_url = NULL;
285 p_sys->psz_rtsp_control = NULL;
286 p_sys->psz_rtsp_path = NULL;
288 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
289 vlc_mutex_init( p_stream, &p_sys->lock_es );
291 p_stream->pf_add = Add;
292 p_stream->pf_del = Del;
293 p_stream->pf_send = Send;
295 p_stream->p_sys = p_sys;
297 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
298 if( *val.psz_string )
300 sout_access_out_t *p_grab;
301 const char *psz_rtpmap;
302 char url[NI_MAXHOST + 8], access[22], psz_ttl[5], ipv;
306 msg_Err( p_stream, "muxing is not supported in RTSP mode" );
310 else if( p_sys->psz_destination == NULL )
312 msg_Err( p_stream, "RTP needs a destination when muxing" );
317 /* Check muxer type */
318 if( !strncasecmp( val.psz_string, "ps", 2 )
319 || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
321 psz_rtpmap = "MP2P/90000";
323 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
325 psz_rtpmap = "MP2T/90000";
326 p_sys->i_payload_type = 33;
330 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
335 /* create the access out */
336 if( p_sys->i_ttl > 0 )
338 sprintf( access, "udp{raw,rtcp,ttl=%d}", p_sys->i_ttl );
342 strcat( access, "udp{raw,rtcp}" );
345 /* FIXME: we should check that url is a numerical address, otherwise
346 * the SDP will be quite broken (regardless of the IP protocol version)
347 * Also it might be IPv6 with no ':' if it is a DNS name.
349 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
351 /* IPv6 needs brackets if not already present */
352 if ((ipv == '6') && (p_sys->psz_destination[0] != '['))
353 snprintf (url, sizeof (url), "[%s]:%d",p_sys->psz_destination,
356 snprintf (url, sizeof (url), "%s:%d",p_sys->psz_destination,
359 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
361 msg_Err( p_stream, "cannot create the access out for %s://%s",
366 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
367 if( p_sys->i_mtu <= 16 + MTU_REDUCE )
369 /* better than nothing */
372 p_sys->i_mtu -= MTU_REDUCE;
374 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
375 p_grab = p_sys->p_grab =
376 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
377 p_grab->p_module = NULL;
378 p_grab->p_sout = p_sout;
379 p_grab->psz_access = strdup( "grab" );
380 p_grab->p_cfg = NULL;
381 p_grab->psz_path = strdup( "" );
382 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
383 p_grab->pf_seek = NULL;
384 p_grab->pf_write = AccessOutGrabberWrite;
387 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
389 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
390 sout_AccessOutDelete( p_sys->p_grab );
391 sout_AccessOutDelete( p_sys->p_access );
396 /* create the SDP for a muxed stream (only once) */
397 /* FIXME http://www.faqs.org/rfcs/rfc4566.html
398 o= - should be local username (no spaces allowed)
399 o= time should be hashed with some other value to garantee uniqueness
400 o= don't use the localhost address. use fully qualified domain name or IP4 address
401 a= source-filter: we need our source address
402 a= x-plgroup: (missing)
403 RTP packets need to get the correct src IP address */
405 && net_AddressIsMulticast( VLC_OBJECT(p_stream), p_sys->psz_destination ) )
407 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
408 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
415 asprintf( &p_sys->psz_sdp,
417 /* FIXME: source address not known :( */
418 "o=- "I64Fd" %d IN IP%c %s\r\n"
424 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
425 "a=tool:"PACKAGE_STRING"\r\n"
427 "a=type:broadcast\r\n"
428 "m=video %d RTP/AVP %d\r\n"
429 "a=rtpmap:%d %s\r\n",
430 p_sys->i_sdp_id, p_sys->i_sdp_version,
431 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
432 p_sys->psz_session_name,
433 p_sys->psz_session_description,
434 p_sys->psz_session_url,
435 p_sys->psz_session_email,
436 ipv, p_sys->psz_destination, psz_ttl,
437 p_sys->i_port, p_sys->i_payload_type,
438 p_sys->i_payload_type, psz_rtpmap );
439 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
441 /* create the rtp context */
442 p_sys->ssrc[0] = rand()&0xff;
443 p_sys->ssrc[1] = rand()&0xff;
444 p_sys->ssrc[2] = rand()&0xff;
445 p_sys->ssrc[3] = rand()&0xff;
446 p_sys->i_sequence = rand()&0xffff;
447 p_sys->i_timestamp_start = rand()&0xffffffff;
448 p_sys->packet = NULL;
453 p_sys->p_access = NULL;
454 p_sys->p_grab = NULL;
456 free( val.psz_string );
459 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
460 if( *val.psz_string )
462 config_chain_t *p_cfg;
464 SDPHandleUrl( p_stream, val.psz_string );
466 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
468 if( !strcmp( p_cfg->psz_name, "sdp" ) )
470 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
473 /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
474 if( !strcmp( p_cfg->psz_value, val.psz_string ) )
477 SDPHandleUrl( p_stream, p_cfg->psz_value );
481 free( val.psz_string );
483 /* update p_sout->i_out_pace_nocontrol */
484 p_stream->p_sout->i_out_pace_nocontrol++;
489 /*****************************************************************************
491 *****************************************************************************/
492 static void Close( vlc_object_t * p_this )
494 sout_stream_t *p_stream = (sout_stream_t*)p_this;
495 sout_stream_sys_t *p_sys = p_stream->p_sys;
497 /* update p_sout->i_out_pace_nocontrol */
498 p_stream->p_sout->i_out_pace_nocontrol--;
502 sout_MuxDelete( p_sys->p_mux );
503 sout_AccessOutDelete( p_sys->p_access );
504 sout_AccessOutDelete( p_sys->p_grab );
507 block_Release( p_sys->packet );
509 if( p_sys->b_export_sap )
512 SapSetup( p_stream );
516 RtspUnsetup( p_stream );
518 vlc_mutex_destroy( &p_sys->lock_sdp );
520 if( p_sys->p_httpd_file )
521 httpd_FileDelete( p_sys->p_httpd_file );
523 if( p_sys->p_httpd_host )
524 httpd_HostDelete( p_sys->p_httpd_host );
526 if( p_sys->psz_session_name )
527 free( p_sys->psz_session_name );
529 if( p_sys->psz_session_description )
530 free( p_sys->psz_session_description );
532 if( p_sys->psz_session_url )
533 free( p_sys->psz_session_url );
535 if( p_sys->psz_session_email )
536 free( p_sys->psz_session_email );
539 free( p_sys->psz_sdp );
541 if( p_sys->b_export_sdp_file )
544 unlink( p_sys->psz_sdp_file );
546 free( p_sys->psz_sdp_file );
548 free( p_sys->psz_destination );
552 /*****************************************************************************
554 *****************************************************************************/
555 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
557 sout_stream_sys_t *p_sys = p_stream->p_sys;
560 vlc_UrlParse( &url, psz_url, 0 );
561 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
563 if( p_sys->p_httpd_file )
565 msg_Err( p_stream, "you can use sdp=http:// only once" );
569 if( HttpSetup( p_stream, &url ) )
571 msg_Err( p_stream, "cannot export sdp as http" );
574 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
576 if( p_sys->p_rtsp_url )
578 msg_Err( p_stream, "you can use sdp=rtsp:// only once" );
582 /* FIXME test if destination is multicast or no destination at all FIXME */
583 if( RtspSetup( p_stream, &url ) )
585 msg_Err( p_stream, "cannot export sdp as rtsp" );
588 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
589 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
591 p_sys->b_export_sap = VLC_TRUE;
592 SapSetup( p_stream );
594 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
596 if( p_sys->b_export_sdp_file )
598 msg_Err( p_stream, "you can use sdp=file:// only once" );
601 p_sys->b_export_sdp_file = VLC_TRUE;
602 psz_url = &psz_url[5];
603 if( psz_url[0] == '/' && psz_url[1] == '/' )
605 p_sys->psz_sdp_file = strdup( psz_url );
609 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
612 vlc_UrlClean( &url );
615 /*****************************************************************************
617 *****************************************************************************/
618 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
619 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
620 o= - should be local username (no spaces allowed)
621 o= time should be hashed with some other value to garantue uniqueness
622 o= we need IP6 support?
623 o= don't use the localhost address. use fully qualified domain name or IP4 address
624 p= international phone number (pass via vars?)
626 a= recvonly (missing)
627 a= type:broadcast (missing)
628 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
629 a= x-plgroup: (missing)
630 RTP packets need to get the correct src IP address */
631 /*static*/ char *SDPGenerate( const sout_stream_t *p_stream,
632 const char *psz_destination, vlc_bool_t b_rtsp )
634 sout_stream_sys_t *p_sys = p_stream->p_sys;
636 char *psz_sdp, *p, ipv;
639 /* FIXME: breaks IP version check on unknown destination */
640 if( psz_destination == NULL )
641 psz_destination = "0.0.0.0";
643 i_size = sizeof( "v=0\r\n" ) +
644 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
645 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
646 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
647 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
648 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
649 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
650 sizeof( "b=RR:0\r\n" ) +
651 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
652 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
653 strlen( psz_destination ) ;
654 for( i = 0; i < p_sys->i_es; i++ )
656 sout_stream_id_t *id = p_sys->es[i];
658 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
661 i_size += strlen( "b=AS: *\r\n") + 10;
665 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
669 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
673 i_size += strlen( "a=control:*/trackID=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
678 i_size += strlen( "m=video %d RTP/AVP %d\r\n" ) +10 +10;
681 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
683 p = psz_sdp = malloc( i_size );
684 p += sprintf( p, "v=0\r\n" );
685 p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
686 p_sys->i_sdp_id, p_sys->i_sdp_version,
687 ipv, ipv == '6' ? "::1" : "127.0.0.1" );
688 if( *p_sys->psz_session_name )
689 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
690 if( *p_sys->psz_session_description )
691 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
692 if( *p_sys->psz_session_url )
693 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
694 if( *p_sys->psz_session_email )
695 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
697 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
698 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
700 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
703 && net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
705 /* Add the deprecated TTL field if it is an IPv4 multicast address */
706 p += sprintf( p, "/%d", p_sys->i_ttl ?: 1 );
708 p += sprintf( p, "\r\n" );
709 p += sprintf( p, "b=RR:0\r\n" );
711 for( i = 0; i < p_sys->i_es; i++ )
713 sout_stream_id_t *id = p_sys->es[i];
715 if( id->i_cat == AUDIO_ES )
717 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
718 id->i_port, id->i_payload_type );
720 else if( id->i_cat == VIDEO_ES )
722 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
723 id->i_port, id->i_payload_type );
731 p += sprintf(p,"b=AS:%d\r\n",id->i_bitrate);
735 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
740 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
745 p += sprintf( p, "a=control:/trackID=%d\r\n", i );
750 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
751 p_sys->i_port, p_sys->i_payload_type );
757 /*****************************************************************************
759 *****************************************************************************/
760 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
761 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
762 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
763 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
764 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
765 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
766 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
767 static int rtp_packetize_mp4a_latm ( sout_stream_t *, sout_stream_id_t *, block_t * );
768 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
769 static int rtp_packetize_h264 ( sout_stream_t *, sout_stream_id_t *, block_t * );
770 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
772 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
774 static const char hex[16] = "0123456789abcdef";
777 for( i = 0; i < i_data; i++ )
779 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
780 s[2*i+1] = hex[(p_data[i] )&0xf];
785 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
787 sout_instance_t *p_sout = p_stream->p_sout;
788 sout_stream_sys_t *p_sys = p_stream->p_sys;
789 sout_stream_id_t *id;
790 sout_access_out_t *p_access = NULL;
794 if( p_sys->p_mux != NULL )
796 sout_input_t *p_input = NULL;
797 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
799 msg_Err( p_stream, "cannot add this stream to the muxer" );
803 id = malloc( sizeof( sout_stream_id_t ) );
804 memset( id, 0, sizeof( sout_stream_id_t ) );
806 id->p_input = p_input;
807 id->pf_packetize= NULL;
808 id->p_rtsp_url = NULL;
814 /* Choose the port */
816 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
818 i_port = p_sys->i_port_audio;
819 p_sys->i_port_audio = 0;
821 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
823 i_port = p_sys->i_port_video;
824 p_sys->i_port_video = 0;
828 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
830 i_port = p_sys->i_port;
837 if( p_sys->psz_destination )
840 char url[NI_MAXHOST + 8];
842 /* first try to create the access out */
843 if( p_sys->i_ttl > 0 )
845 snprintf( access, sizeof( access ), "udp{raw,rtcp,ttl=%d}",
847 access[sizeof( access ) - 1] = '\0';
850 strcpy( access, "udp{raw,rtcp}" );
852 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
853 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
854 p_sys->psz_destination, i_port );
855 url[sizeof( url ) - 1] = '\0';
857 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
859 msg_Err( p_stream, "cannot create the access out for %s://%s",
863 msg_Dbg( p_stream, "access out %s:%s", access, url );
866 /* not create the rtp specific stuff */
867 id = malloc( sizeof( sout_stream_id_t ) );
868 memset( id, 0, sizeof( sout_stream_id_t ) );
869 id->p_stream = p_stream;
870 id->p_access = p_access;
872 id->psz_rtpmap = NULL;
875 id->p_rtsp_url = NULL;
877 vlc_mutex_init( p_stream, &id->lock_sink );
881 switch( p_fmt->i_codec )
883 case VLC_FOURCC( 's', '1', '6', 'b' ):
884 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
886 id->i_payload_type = 11;
888 else if( p_fmt->audio.i_channels == 2 &&
889 p_fmt->audio.i_rate == 44100 )
891 id->i_payload_type = 10;
895 id->i_payload_type = p_sys->i_payload_type++;
897 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
898 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
899 p_fmt->audio.i_channels );
900 id->i_clock_rate = p_fmt->audio.i_rate;
901 id->pf_packetize = rtp_packetize_l16;
903 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
904 id->i_payload_type = p_sys->i_payload_type++;
905 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
906 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
907 p_fmt->audio.i_channels );
908 id->i_clock_rate = p_fmt->audio.i_rate;
909 id->pf_packetize = rtp_packetize_l8;
911 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
912 id->i_payload_type = 14;
913 id->i_clock_rate = 90000;
914 id->psz_rtpmap = strdup( "MPA/90000" );
915 id->pf_packetize = rtp_packetize_mpa;
917 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
918 id->i_payload_type = 32;
919 id->i_clock_rate = 90000;
920 id->psz_rtpmap = strdup( "MPV/90000" );
921 id->pf_packetize = rtp_packetize_mpv;
923 case VLC_FOURCC( 'a', '5', '2', ' ' ):
924 id->i_payload_type = p_sys->i_payload_type++;
925 id->i_clock_rate = 90000;
926 id->psz_rtpmap = strdup( "ac3/90000" );
927 id->pf_packetize = rtp_packetize_ac3;
929 case VLC_FOURCC( 'H', '2', '6', '3' ):
930 id->i_payload_type = p_sys->i_payload_type++;
931 id->i_clock_rate = 90000;
932 id->psz_rtpmap = strdup( "H263-1998/90000" );
933 id->pf_packetize = rtp_packetize_h263;
935 case VLC_FOURCC( 'h', '2', '6', '4' ):
936 id->i_payload_type = p_sys->i_payload_type++;
937 id->i_clock_rate = 90000;
938 id->psz_rtpmap = strdup( "H264/90000" );
939 id->pf_packetize = rtp_packetize_h264;
942 if( p_fmt->i_extra > 0 )
944 uint8_t *p_buffer = p_fmt->p_extra;
945 int i_buffer = p_fmt->i_extra;
946 char *p_64_sps = NULL;
947 char *p_64_pps = NULL;
950 while( i_buffer > 4 &&
951 p_buffer[0] == 0 && p_buffer[1] == 0 &&
952 p_buffer[2] == 0 && p_buffer[3] == 1 )
954 const int i_nal_type = p_buffer[4]&0x1f;
958 msg_Dbg( p_stream, "we found a startcode for NAL with TYPE:%d", i_nal_type );
961 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
963 if( !memcmp (p_buffer + i_offset, "\x00\x00\x00\x01", 4 ) )
965 /* we found another startcode */
970 if( i_nal_type == 7 )
972 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
973 sprintf_hexa( hexa, &p_buffer[5], 3 );
975 else if( i_nal_type == 8 )
977 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
983 if( p_64_sps && p_64_pps )
984 asprintf( &id->psz_fmtp, "packetization-mode=1;profile-level-id=%s;sprop-parameter-sets=%s,%s;", hexa, p_64_sps, p_64_pps );
991 id->psz_fmtp = strdup( "packetization-mode=1" );
994 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
996 char hexa[2*p_fmt->i_extra +1];
998 id->i_payload_type = p_sys->i_payload_type++;
999 id->i_clock_rate = 90000;
1000 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1001 id->pf_packetize = rtp_packetize_split;
1002 if( p_fmt->i_extra > 0 )
1004 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1005 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1006 sprintf( id->psz_fmtp,
1007 "profile-level-id=3; config=%s;", hexa );
1011 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1013 id->i_payload_type = p_sys->i_payload_type++;
1014 id->i_clock_rate = p_fmt->audio.i_rate;
1018 char hexa[2*p_fmt->i_extra +1];
1020 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1021 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1022 id->pf_packetize = rtp_packetize_mp4a;
1023 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1024 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1025 sprintf( id->psz_fmtp,
1026 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1027 "config=%s; SizeLength=13;IndexLength=3; "
1028 "IndexDeltaLength=3; Profile=1;", hexa );
1034 unsigned char config[6];
1035 unsigned int aacsrates[15] = {
1036 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050,
1037 16000, 12000, 11025, 8000, 7350, 0, 0 };
1039 for( i = 0; i < 15; i++ )
1040 if( p_fmt->audio.i_rate == aacsrates[i] )
1046 config[3]=p_fmt->audio.i_channels<<4;
1050 asprintf( &id->psz_rtpmap, "MP4A-LATM/%d/%d",
1051 p_fmt->audio.i_rate, p_fmt->audio.i_channels );
1052 id->pf_packetize = rtp_packetize_mp4a_latm;
1053 sprintf_hexa( hexa, config, 6 );
1054 asprintf( &id->psz_fmtp, "profile-level-id=15; "
1055 "object=2; cpresent=0; config=%s", hexa );
1059 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1060 id->i_payload_type = p_sys->i_payload_type++;
1061 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1062 "AMR/8000/2" : "AMR/8000" );
1063 id->psz_fmtp = strdup( "octet-align=1" );
1064 id->i_clock_rate = p_fmt->audio.i_rate;
1065 id->pf_packetize = rtp_packetize_amr;
1067 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1068 id->i_payload_type = p_sys->i_payload_type++;
1069 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1070 "AMR-WB/16000/2" : "AMR-WB/16000" );
1071 id->psz_fmtp = strdup( "octet-align=1" );
1072 id->i_clock_rate = p_fmt->audio.i_rate;
1073 id->pf_packetize = rtp_packetize_amr;
1077 msg_Err( p_stream, "cannot add this stream (unsupported "
1078 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1081 sout_AccessOutDelete( p_access );
1086 id->i_cat = p_fmt->i_cat;
1088 id->ssrc[0] = rand()&0xff;
1089 id->ssrc[1] = rand()&0xff;
1090 id->ssrc[2] = rand()&0xff;
1091 id->ssrc[3] = rand()&0xff;
1092 id->i_sequence = rand()&0xffff;
1093 id->i_timestamp_start = rand()&0xffffffff;
1094 id->i_bitrate = p_fmt->i_bitrate/1000; /* Stream bitrate in kbps */
1096 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1097 if( id->i_mtu <= 16 + MTU_REDUCE )
1099 /* better than nothing */
1102 id->i_mtu -= MTU_REDUCE;
1103 msg_Dbg( p_stream, "maximum RTP packet size: %d bytes", id->i_mtu );
1105 if( p_sys->p_rtsp_url )
1106 RtspAddId( p_stream, id );
1108 /* Update p_sys context */
1109 vlc_mutex_lock( &p_sys->lock_es );
1110 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1111 vlc_mutex_unlock( &p_sys->lock_es );
1113 psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE );
1115 vlc_mutex_lock( &p_sys->lock_sdp );
1116 free( p_sys->psz_sdp );
1117 p_sys->psz_sdp = psz_sdp;
1118 vlc_mutex_unlock( &p_sys->lock_sdp );
1120 p_sys->i_sdp_version++;
1122 msg_Dbg( p_stream, "sdp=%s", p_sys->psz_sdp );
1124 /* Update SDP (sap/file) */
1125 if( p_sys->b_export_sap ) SapSetup( p_stream );
1126 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1131 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1133 sout_stream_sys_t *p_sys = p_stream->p_sys;
1135 vlc_mutex_lock( &p_sys->lock_es );
1136 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1137 vlc_mutex_unlock( &p_sys->lock_es );
1140 if( id->i_port > 0 )
1142 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1143 p_sys->i_port_audio = id->i_port;
1144 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1145 p_sys->i_port_video = id->i_port;
1150 if( id->psz_rtpmap )
1152 free( id->psz_rtpmap );
1156 free( id->psz_fmtp );
1158 sout_AccessOutDelete( id->p_access );
1160 else if( id->p_input )
1162 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1164 if( id->p_rtsp_url )
1165 RtspDelId( p_stream, id );
1167 vlc_mutex_destroy( &id->lock_sink );
1170 /* Update SDP (sap/file) */
1171 if( p_sys->b_export_sap && !p_sys->p_mux ) SapSetup( p_stream );
1172 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1178 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1183 if( p_stream->p_sys->p_mux )
1185 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1191 p_next = p_buffer->p_next;
1192 if( id->pf_packetize( p_stream, id, p_buffer ) )
1196 block_Release( p_buffer );
1204 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1207 sout_stream_sys_t *p_sys = p_stream->p_sys;
1209 int64_t i_dts = p_buffer->i_dts;
1210 uint32_t i_timestamp = i_dts * 9 / 100;
1212 uint8_t *p_data = p_buffer->p_buffer;
1213 unsigned int i_data = p_buffer->i_buffer;
1214 unsigned int i_max = p_sys->i_mtu - 12;
1216 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1220 unsigned int i_size;
1222 /* output complete packet */
1223 if( p_sys->packet &&
1224 p_sys->packet->i_buffer + i_data > i_max )
1226 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1227 p_sys->packet = NULL;
1230 if( p_sys->packet == NULL )
1232 /* allocate a new packet */
1233 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1234 p_sys->packet->p_buffer[ 0] = 0x80;
1235 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1236 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1237 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1238 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1239 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1240 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1241 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1242 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1243 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1244 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1245 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1246 p_sys->packet->i_buffer = 12;
1248 p_sys->packet->i_dts = i_dts;
1249 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1250 i_dts += p_sys->packet->i_length;
1252 p_sys->i_sequence++;
1255 i_size = __MIN( i_data,
1256 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1258 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1261 p_sys->packet->i_buffer += i_size;
1269 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1272 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1274 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1280 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1282 p_next = p_buffer->p_next;
1283 block_Release( p_buffer );
1290 /****************************************************************************
1292 ****************************************************************************/
1293 static int SapSetup( sout_stream_t *p_stream )
1295 sout_stream_sys_t *p_sys = p_stream->p_sys;
1296 sout_instance_t *p_sout = p_stream->p_sout;
1297 announce_method_t *p_method = sout_SAPMethod();
1299 /* Remove the previous session */
1300 if( p_sys->p_session != NULL)
1302 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1303 sout_AnnounceSessionDestroy( p_sys->p_session );
1304 p_sys->p_session = NULL;
1307 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1309 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, SOUT_CFG_PREFIX,
1311 p_sys->psz_destination,
1315 sout_MethodRelease( p_method );
1319 /****************************************************************************
1321 ****************************************************************************/
1322 static int FileSetup( sout_stream_t *p_stream )
1324 sout_stream_sys_t *p_sys = p_stream->p_sys;
1327 if( ( f = utf8_fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1329 msg_Err( p_stream, "cannot open file '%s' (%s)",
1330 p_sys->psz_sdp_file, strerror(errno) );
1331 return VLC_EGENERIC;
1334 fprintf( f, "%s", p_sys->psz_sdp );
1340 /****************************************************************************
1342 ****************************************************************************/
1343 static int HttpCallback( httpd_file_sys_t *p_args,
1344 httpd_file_t *, uint8_t *p_request,
1345 uint8_t **pp_data, int *pi_data );
1347 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1349 sout_stream_sys_t *p_sys = p_stream->p_sys;
1351 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1352 if( p_sys->p_httpd_host )
1354 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1355 url->psz_path ? url->psz_path : "/",
1358 HttpCallback, (void*)p_sys );
1360 if( p_sys->p_httpd_file == NULL )
1362 return VLC_EGENERIC;
1367 static int HttpCallback( httpd_file_sys_t *p_args,
1368 httpd_file_t *f, uint8_t *p_request,
1369 uint8_t **pp_data, int *pi_data )
1371 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1373 vlc_mutex_lock( &p_sys->lock_sdp );
1374 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1376 *pi_data = strlen( p_sys->psz_sdp );
1377 *pp_data = malloc( *pi_data );
1378 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1385 vlc_mutex_unlock( &p_sys->lock_sdp );
1390 /****************************************************************************
1392 ****************************************************************************/
1393 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1394 int b_marker, int64_t i_pts )
1396 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1398 out->p_buffer[0] = 0x80;
1399 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1400 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1401 out->p_buffer[3] = ( id->i_sequence )&0xff;
1402 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1403 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1404 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1405 out->p_buffer[7] = ( i_timestamp )&0xff;
1407 out->p_buffer[ 8] = id->ssrc[0];
1408 out->p_buffer[ 9] = id->ssrc[1];
1409 out->p_buffer[10] = id->ssrc[2];
1410 out->p_buffer[11] = id->ssrc[3];
1416 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1419 vlc_mutex_lock( &id->lock_sink );
1420 for( i = 0; i < id->i_sink; i++ )
1422 sout_AccessOutWrite( id->sink[i], block_Duplicate( out ) );
1424 vlc_mutex_unlock( &id->lock_sink );
1428 sout_AccessOutWrite( id->p_access, out );
1432 block_Release( out );
1436 int rtp_add_sink( sout_stream_id_t *id, sout_access_out_t *access )
1438 vlc_mutex_lock( &id->lock_sink );
1439 TAB_APPEND( id->i_sink, id->sink, access );
1440 vlc_mutex_unlock( &id->lock_sink );
1443 void rtp_del_sink( sout_stream_id_t *id, sout_access_out_t *access )
1445 vlc_mutex_lock( &id->lock_sink );
1446 TAB_REMOVE( id->i_sink, id->sink, access );
1447 vlc_mutex_unlock( &id->lock_sink );
1450 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1453 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1454 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1456 uint8_t *p_data = in->p_buffer;
1457 int i_data = in->i_buffer;
1460 for( i = 0; i < i_count; i++ )
1462 int i_payload = __MIN( i_max, i_data );
1463 block_t *out = block_New( p_stream, 16 + i_payload );
1465 /* rtp common header */
1466 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1468 out->p_buffer[12] = 0;
1469 out->p_buffer[13] = 0;
1470 /* fragment offset in the current frame */
1471 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1472 out->p_buffer[15] = ( (i*i_max) )&0xff;
1473 memcpy( &out->p_buffer[16], p_data, i_payload );
1475 out->i_buffer = 16 + i_payload;
1476 out->i_dts = in->i_dts + i * in->i_length / i_count;
1477 out->i_length = in->i_length / i_count;
1479 rtp_packetize_send( id, out );
1481 p_data += i_payload;
1482 i_data -= i_payload;
1489 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1492 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1493 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1495 uint8_t *p_data = in->p_buffer;
1496 int i_data = in->i_buffer;
1498 int b_sequence_start = 0;
1499 int i_temporal_ref = 0;
1500 int i_picture_coding_type = 0;
1501 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1502 int b_start_slice = 0;
1504 /* preparse this packet to get some info */
1505 if( in->i_buffer > 4 )
1507 uint8_t *p = p_data;
1508 int i_rest = in->i_buffer;
1512 while( i_rest > 4 &&
1513 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1527 /* sequence start code */
1528 b_sequence_start = 1;
1530 else if( *p == 0x00 && i_rest >= 4 )
1533 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1534 i_picture_coding_type = (p[2] >> 3)&0x07;
1536 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1537 i_picture_coding_type == 3 ) )
1539 i_ffv = (p[3] >> 2)&0x01;
1540 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1541 if( i_rest > 4 && i_picture_coding_type == 3 )
1543 i_fbv = (p[4]>>6)&0x01;
1544 i_bfc = (p[4]>>3)&0x07;
1548 else if( *p <= 0xaf )
1555 for( i = 0; i < i_count; i++ )
1557 int i_payload = __MIN( i_max, i_data );
1558 block_t *out = block_New( p_stream,
1560 uint32_t h = ( i_temporal_ref << 16 )|
1561 ( b_sequence_start << 13 )|
1562 ( b_start_slice << 12 )|
1563 ( i == i_count - 1 ? 1 << 11 : 0 )|
1564 ( i_picture_coding_type << 8 )|
1565 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1567 /* rtp common header */
1568 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1569 in->i_pts > 0 ? in->i_pts : in->i_dts );
1571 /* 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 */
1572 out->p_buffer[12] = ( h >> 24 )&0xff;
1573 out->p_buffer[13] = ( h >> 16 )&0xff;
1574 out->p_buffer[14] = ( h >> 8 )&0xff;
1575 out->p_buffer[15] = ( h )&0xff;
1577 memcpy( &out->p_buffer[16], p_data, i_payload );
1579 out->i_buffer = 16 + i_payload;
1580 out->i_dts = in->i_dts + i * in->i_length / i_count;
1581 out->i_length = in->i_length / i_count;
1583 rtp_packetize_send( id, out );
1585 p_data += i_payload;
1586 i_data -= i_payload;
1592 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1595 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1596 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1598 uint8_t *p_data = in->p_buffer;
1599 int i_data = in->i_buffer;
1602 for( i = 0; i < i_count; i++ )
1604 int i_payload = __MIN( i_max, i_data );
1605 block_t *out = block_New( p_stream, 14 + i_payload );
1607 /* rtp common header */
1608 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1610 out->p_buffer[12] = 1;
1612 out->p_buffer[13] = 0x00;
1614 memcpy( &out->p_buffer[14], p_data, i_payload );
1616 out->i_buffer = 14 + i_payload;
1617 out->i_dts = in->i_dts + i * in->i_length / i_count;
1618 out->i_length = in->i_length / i_count;
1620 rtp_packetize_send( id, out );
1622 p_data += i_payload;
1623 i_data -= i_payload;
1629 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1632 int i_max = id->i_mtu - 12; /* payload max in one packet */
1633 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1635 uint8_t *p_data = in->p_buffer;
1636 int i_data = in->i_buffer;
1639 for( i = 0; i < i_count; i++ )
1641 int i_payload = __MIN( i_max, i_data );
1642 block_t *out = block_New( p_stream, 12 + i_payload );
1644 /* rtp common header */
1645 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1646 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1647 memcpy( &out->p_buffer[12], p_data, i_payload );
1649 out->i_buffer = 12 + i_payload;
1650 out->i_dts = in->i_dts + i * in->i_length / i_count;
1651 out->i_length = in->i_length / i_count;
1653 rtp_packetize_send( id, out );
1655 p_data += i_payload;
1656 i_data -= i_payload;
1663 static int rtp_packetize_mp4a_latm( sout_stream_t *p_stream, sout_stream_id_t *id,
1666 int i_max = id->i_mtu - 14; /* payload max in one packet */
1667 int latmhdrsize = in->i_buffer / 0xff + 1;
1668 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1670 uint8_t *p_data = in->p_buffer, *p_header = NULL;
1671 int i_data = in->i_buffer;
1674 for( i = 0; i < i_count; i++ )
1676 int i_payload = __MIN( i_max, i_data );
1681 out = block_New( p_stream, 12 + latmhdrsize + i_payload );
1683 /* rtp common header */
1684 rtp_packetize_common( id, out, ((i == i_count - 1) ? 1 : 0),
1685 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1689 int tmp = in->i_buffer;
1691 p_header=out->p_buffer+12;
1701 memcpy( &out->p_buffer[12+latmhdrsize], p_data, i_payload );
1703 out->i_buffer = 12 + latmhdrsize + i_payload;
1704 out->i_dts = in->i_dts + i * in->i_length / i_count;
1705 out->i_length = in->i_length / i_count;
1707 rtp_packetize_send( id, out );
1709 p_data += i_payload;
1710 i_data -= i_payload;
1716 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
1719 int i_max = id->i_mtu - 12; /* payload max in one packet */
1720 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1722 uint8_t *p_data = in->p_buffer;
1723 int i_data = in->i_buffer;
1728 int i_payload = (__MIN( i_max, i_data )/4)*4;
1729 block_t *out = block_New( p_stream, 12 + i_payload );
1731 /* rtp common header */
1732 rtp_packetize_common( id, out, 0,
1733 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1734 memcpy( &out->p_buffer[12], p_data, i_payload );
1736 out->i_buffer = 12 + i_payload;
1737 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1738 out->i_length = in->i_length / i_count;
1740 rtp_packetize_send( id, out );
1742 p_data += i_payload;
1743 i_data -= i_payload;
1750 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
1753 int i_max = id->i_mtu - 12; /* payload max in one packet */
1754 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1756 uint8_t *p_data = in->p_buffer;
1757 int i_data = in->i_buffer;
1762 int i_payload = (__MIN( i_max, i_data )/2)*2;
1763 block_t *out = block_New( p_stream, 12 + i_payload );
1765 /* rtp common header */
1766 rtp_packetize_common( id, out, 0,
1767 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1768 memcpy( &out->p_buffer[12], p_data, i_payload );
1770 out->i_buffer = 12 + i_payload;
1771 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
1772 out->i_length = in->i_length / i_count;
1774 rtp_packetize_send( id, out );
1776 p_data += i_payload;
1777 i_data -= i_payload;
1783 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
1786 int i_max = id->i_mtu - 16; /* payload max in one packet */
1787 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1789 uint8_t *p_data = in->p_buffer;
1790 int i_data = in->i_buffer;
1793 for( i = 0; i < i_count; i++ )
1795 int i_payload = __MIN( i_max, i_data );
1796 block_t *out = block_New( p_stream, 16 + i_payload );
1798 /* rtp common header */
1799 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1800 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1802 /* AU headers length (bits) */
1803 out->p_buffer[12] = 0;
1804 out->p_buffer[13] = 2*8;
1805 /* for each AU length 13 bits + idx 3bits, */
1806 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
1807 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
1809 memcpy( &out->p_buffer[16], p_data, i_payload );
1811 out->i_buffer = 16 + i_payload;
1812 out->i_dts = in->i_dts + i * in->i_length / i_count;
1813 out->i_length = in->i_length / i_count;
1815 rtp_packetize_send( id, out );
1817 p_data += i_payload;
1818 i_data -= i_payload;
1826 #define RTP_H263_HEADER_SIZE (2) // plen = 0
1827 #define RTP_H263_PAYLOAD_START (14) // plen = 0
1828 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
1831 uint8_t *p_data = in->p_buffer;
1832 int i_data = in->i_buffer;
1834 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
1837 int b_v_bit = 0; // no pesky error resilience
1838 int i_plen = 0; // normally plen=0 for PSC packet
1839 int i_pebit = 0; // because plen=0
1844 return VLC_EGENERIC;
1846 if( p_data[0] || p_data[1] )
1848 return VLC_EGENERIC;
1850 /* remove 2 leading 0 bytes */
1853 i_count = ( i_data + i_max - 1 ) / i_max;
1855 for( i = 0; i < i_count; i++ )
1857 int i_payload = __MIN( i_max, i_data );
1858 block_t *out = block_New( p_stream,
1859 RTP_H263_PAYLOAD_START + i_payload );
1860 b_p_bit = (i == 0) ? 1 : 0;
1861 h = ( b_p_bit << 10 )|
1866 /* rtp common header */
1867 //b_m_bit = 1; // always contains end of frame
1868 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1869 in->i_pts > 0 ? in->i_pts : in->i_dts );
1872 out->p_buffer[12] = ( h >> 8 )&0xff;
1873 out->p_buffer[13] = ( h )&0xff;
1874 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
1876 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
1877 out->i_dts = in->i_dts + i * in->i_length / i_count;
1878 out->i_length = in->i_length / i_count;
1880 rtp_packetize_send( id, out );
1882 p_data += i_payload;
1883 i_data -= i_payload;
1890 static int rtp_packetize_h264_nal( sout_stream_t *p_stream, sout_stream_id_t *id,
1891 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 )
1893 const int i_max = id->i_mtu - 12; /* payload max in one packet */
1900 i_nal_hdr = p_data[3];
1901 i_nal_type = i_nal_hdr&0x1f;
1902 if( i_nal_type == 7 || i_nal_type == 8 )
1904 /* XXX Why do you want to remove them ? It will break streaming with
1905 * SPS/PPS change (broadcast) ? */
1909 /* Skip start code */
1914 if( i_data <= i_max )
1916 /* Single NAL unit packet */
1917 block_t *out = block_New( p_stream, 12 + i_data );
1919 out->i_length = i_length;
1922 rtp_packetize_common( id, out, b_last, i_pts );
1923 out->i_buffer = 12 + i_data;
1925 memcpy( &out->p_buffer[12], p_data, i_data );
1927 rtp_packetize_send( id, out );
1931 /* FU-A Fragmentation Unit without interleaving */
1932 const int i_count = ( i_data-1 + i_max-2 - 1 ) / (i_max-2);
1938 for( i = 0; i < i_count; i++ )
1940 const int i_payload = __MIN( i_data, i_max-2 );
1941 block_t *out = block_New( p_stream, 12 + 2 + i_payload );
1942 out->i_dts = i_dts + i * i_length / i_count;
1943 out->i_length = i_length / i_count;
1946 rtp_packetize_common( id, out, (b_last && i_payload == i_data), i_pts );
1947 out->i_buffer = 14 + i_payload;
1950 out->p_buffer[12] = 0x00 | (i_nal_hdr & 0x60) | 28;
1952 out->p_buffer[13] = ( i == 0 ? 0x80 : 0x00 ) | ( (i == i_count-1) ? 0x40 : 0x00 ) | i_nal_type;
1953 memcpy( &out->p_buffer[14], p_data, i_payload );
1955 rtp_packetize_send( id, out );
1957 i_data -= i_payload;
1958 p_data += i_payload;
1964 static int rtp_packetize_h264( sout_stream_t *p_stream, sout_stream_id_t *id,
1967 const uint8_t *p_buffer = in->p_buffer;
1968 int i_buffer = in->i_buffer;
1970 while( i_buffer > 4 && ( p_buffer[0] != 0 || p_buffer[1] != 0 || p_buffer[2] != 1 ) )
1976 /* Split nal units */
1977 while( i_buffer > 4 )
1980 int i_size = i_buffer;
1981 int i_skip = i_buffer;
1983 /* search nal end */
1984 for( i_offset = 4; i_offset+2 < i_buffer ; i_offset++)
1986 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 1 )
1988 /* we found another startcode */
1989 i_size = i_offset - ( p_buffer[i_offset-1] == 0 ? 1 : 0);
1994 /* TODO add STAP-A to remove a lot of overhead with small slice/sei/... */
1995 rtp_packetize_h264_nal( p_stream, id, p_buffer, i_size,
1996 (in->i_pts > 0 ? in->i_pts : in->i_dts), in->i_dts,
1997 (i_size >= i_buffer), in->i_length * i_size / in->i_buffer );
2005 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2008 int i_max = id->i_mtu - 14; /* payload max in one packet */
2009 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2011 uint8_t *p_data = in->p_buffer;
2012 int i_data = in->i_buffer;
2015 /* Only supports octet-aligned mode */
2016 for( i = 0; i < i_count; i++ )
2018 int i_payload = __MIN( i_max, i_data );
2019 block_t *out = block_New( p_stream, 14 + i_payload );
2021 /* rtp common header */
2022 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2023 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2024 /* Payload header */
2025 out->p_buffer[12] = 0xF0; /* CMR */
2026 out->p_buffer[13] = p_data[0]&0x7C; /* ToC */ /* FIXME: frame type */
2028 /* FIXME: are we fed multiple frames ? */
2029 memcpy( &out->p_buffer[14], p_data+1, i_payload-1 );
2031 out->i_buffer = 14 + i_payload-1;
2032 out->i_dts = in->i_dts + i * in->i_length / i_count;
2033 out->i_length = in->i_length / i_count;
2035 rtp_packetize_send( id, out );
2037 p_data += i_payload;
2038 i_data -= i_payload;