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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc/input.h>
35 #include "vlc_httpd.h"
38 /*****************************************************************************
40 *****************************************************************************/
41 #define DST_TEXT N_("Destination")
42 #define DST_LONGTEXT N_( \
43 "Allows you to specify the output URL used for the streaming output." )
44 #define SDP_TEXT N_("SDP")
45 #define SDP_LONGTEXT N_( \
46 "Allows you to specify the SDP used for the streaming output. " \
47 "You must use an url: http://location to access the SDP via HTTP, " \
48 "rtsp://location for RTSP access, and sap:// for the SDP to be " \
49 "announced via SAP." )
50 #define MUX_TEXT N_("Muxer")
51 #define MUX_LONGTEXT N_( \
52 "Allows you to specify the muxer used for the streaming output." )
54 #define NAME_TEXT N_("Session name")
55 #define NAME_LONGTEXT N_( \
56 "Allows you to specify the session name used for the streaming output." )
57 #define DESC_TEXT N_("Session description")
58 #define DESC_LONGTEXT N_( \
59 "Allows you to give a broader description of the stream." )
60 #define URL_TEXT N_("Session URL")
61 #define URL_LONGTEXT N_( \
62 "Allows you to specify a URL with additional information on the stream." )
63 #define EMAIL_TEXT N_("Session email")
64 #define EMAIL_LONGTEXT N_( \
65 "Allows you to specify contact e-mail address for this session." )
67 #define PORT_TEXT N_("Port")
68 #define PORT_LONGTEXT N_( \
69 "Allows you to specify the base port used for the RTP streaming." )
70 #define PORT_AUDIO_TEXT N_("Audio port")
71 #define PORT_AUDIO_LONGTEXT N_( \
72 "Allows you to specify the default audio port used for the RTP streaming." )
73 #define PORT_VIDEO_TEXT N_("Video port")
74 #define PORT_VIDEO_LONGTEXT N_( \
75 "Allows you to specify the default video port used for the RTP streaming." )
77 #define TTL_TEXT N_("Time To Live")
78 #define TTL_LONGTEXT N_( \
79 "Allows you to specify the time to live for the output stream." )
81 static int Open ( vlc_object_t * );
82 static void Close( vlc_object_t * );
84 #define SOUT_CFG_PREFIX "sout-rtp-"
87 set_shortname( _("RTP"));
88 set_description( _("RTP stream output") );
89 set_capability( "sout stream", 0 );
90 add_shortcut( "rtp" );
91 set_category( CAT_SOUT );
92 set_subcategory( SUBCAT_SOUT_STREAM );
94 add_string( SOUT_CFG_PREFIX "dst", "", NULL, DST_TEXT,
95 DST_LONGTEXT, VLC_TRUE );
96 add_string( SOUT_CFG_PREFIX "sdp", "", NULL, SDP_TEXT,
97 SDP_LONGTEXT, VLC_TRUE );
98 add_string( SOUT_CFG_PREFIX "mux", "", NULL, MUX_TEXT,
99 MUX_LONGTEXT, VLC_TRUE );
101 add_string( SOUT_CFG_PREFIX "name", "NONE", NULL, NAME_TEXT,
102 NAME_LONGTEXT, VLC_TRUE );
103 add_string( SOUT_CFG_PREFIX "description", "", NULL, DESC_TEXT,
104 DESC_LONGTEXT, VLC_TRUE );
105 add_string( SOUT_CFG_PREFIX "url", "", NULL, URL_TEXT,
106 URL_LONGTEXT, VLC_TRUE );
107 add_string( SOUT_CFG_PREFIX "email", "", NULL, EMAIL_TEXT,
108 EMAIL_LONGTEXT, VLC_TRUE );
110 add_integer( SOUT_CFG_PREFIX "port", 1234, NULL, PORT_TEXT,
111 PORT_LONGTEXT, VLC_TRUE );
112 add_integer( SOUT_CFG_PREFIX "port-audio", 1230, NULL, PORT_AUDIO_TEXT,
113 PORT_AUDIO_LONGTEXT, VLC_TRUE );
114 add_integer( SOUT_CFG_PREFIX "port-video", 1232, NULL, PORT_VIDEO_TEXT,
115 PORT_VIDEO_LONGTEXT, VLC_TRUE );
117 add_integer( SOUT_CFG_PREFIX "ttl", 1, NULL, TTL_TEXT,
118 TTL_LONGTEXT, VLC_TRUE );
120 set_callbacks( Open, Close );
123 /*****************************************************************************
124 * Exported prototypes
125 *****************************************************************************/
126 static const char *ppsz_sout_options[] = {
127 "dst", "name", "port", "port-audio", "port-video", "*sdp", "ttl", "mux",
128 "description", "url","email", NULL
131 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
132 static int Del ( sout_stream_t *, sout_stream_id_t * );
133 static int Send( sout_stream_t *, sout_stream_id_t *,
136 /* For unicast/interleaved streaming */
140 int64_t i_last; /* for timeout */
142 /* is it in "play" state */
143 vlc_bool_t b_playing;
145 /* output (id-access) */
147 sout_stream_id_t **id;
149 sout_access_out_t **access;
152 struct sout_stream_sys_t
158 vlc_mutex_t lock_sdp;
160 char *psz_session_name;
161 char *psz_session_description;
162 char *psz_session_url;
163 char *psz_session_email;
166 vlc_bool_t b_export_sdp_file;
169 vlc_bool_t b_export_sap;
170 session_descriptor_t *p_session;
172 httpd_host_t *p_httpd_host;
173 httpd_file_t *p_httpd_file;
175 httpd_host_t *p_rtsp_host;
176 httpd_url_t *p_rtsp_url;
177 char *psz_rtsp_control;
181 char *psz_destination;
187 /* when need to use a private one or when using muxer */
190 /* in case we do TS/PS over rtp */
192 sout_access_out_t *p_access;
194 sout_access_out_t *p_grab;
196 uint32_t i_timestamp_start;
203 sout_stream_id_t **es;
207 rtsp_client_t **rtsp;
210 typedef int (*pf_rtp_packetizer_t)( sout_stream_t *, sout_stream_id_t *,
213 struct sout_stream_id_t
215 sout_stream_t *p_stream;
217 uint8_t i_payload_type;
219 uint32_t i_timestamp_start;
226 char *psz_destination;
230 /* Packetizer specific fields */
231 pf_rtp_packetizer_t pf_packetize;
234 /* for sending the packets */
235 sout_access_out_t *p_access;
237 vlc_mutex_t lock_rtsp;
239 sout_access_out_t **rtsp_access;
242 sout_input_t *p_input;
244 /* RTSP url control */
245 httpd_url_t *p_rtsp_url;
248 static int AccessOutGrabberWrite( sout_access_out_t *, block_t * );
250 static void SDPHandleUrl( sout_stream_t *, char * );
252 static int SapSetup( sout_stream_t *p_stream );
253 static int FileSetup( sout_stream_t *p_stream );
254 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t * );
255 static int RtspSetup( sout_stream_t *p_stream, vlc_url_t * );
257 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
258 httpd_message_t *, httpd_message_t * );
259 static int RtspCallbackId( httpd_callback_sys_t *, httpd_client_t *,
260 httpd_message_t *, httpd_message_t * );
263 static rtsp_client_t *RtspClientNew( sout_stream_t *, char *psz_session );
264 static rtsp_client_t *RtspClientGet( sout_stream_t *, char *psz_session );
265 static void RtspClientDel( sout_stream_t *, rtsp_client_t * );
267 /*****************************************************************************
269 *****************************************************************************/
270 static int Open( vlc_object_t *p_this )
272 sout_stream_t *p_stream = (sout_stream_t*)p_this;
273 sout_instance_t *p_sout = p_stream->p_sout;
274 sout_stream_sys_t *p_sys;
277 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options, p_stream->p_cfg );
279 p_sys = malloc( sizeof( sout_stream_sys_t ) );
281 p_sys->psz_destination = var_GetString( p_stream, SOUT_CFG_PREFIX "dst" );
282 if( *p_sys->psz_destination == '\0' )
284 free( p_sys->psz_destination );
285 p_sys->psz_destination = NULL;
288 p_sys->psz_session_name = var_GetString( p_stream, SOUT_CFG_PREFIX "name" );
289 p_sys->psz_session_description = var_GetString( p_stream, SOUT_CFG_PREFIX "description" );
290 p_sys->psz_session_url = var_GetString( p_stream, SOUT_CFG_PREFIX "url" );
291 p_sys->psz_session_email = var_GetString( p_stream, SOUT_CFG_PREFIX "email" );
293 p_sys->i_port = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port" );
294 p_sys->i_port_audio = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-audio" );
295 p_sys->i_port_video = var_GetInteger( p_stream, SOUT_CFG_PREFIX "port-video" );
297 p_sys->psz_sdp_file = NULL;
299 if( p_sys->i_port_audio == p_sys->i_port_video )
301 msg_Err( p_stream, "audio and video port cannot be the same" );
302 p_sys->i_port_audio = 0;
303 p_sys->i_port_video = 0;
306 if( !p_sys->psz_session_name )
308 if( p_sys->psz_destination )
309 p_sys->psz_session_name = strdup( p_sys->psz_destination );
311 p_sys->psz_session_name = strdup( "NONE" );
314 if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
317 vlc_bool_t b_ok = VLC_FALSE;
319 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
321 if( !strcmp( p_cfg->psz_name, "sdp" ) )
323 if( p_cfg->psz_value && !strncasecmp( p_cfg->psz_value, "rtsp", 4 ) )
333 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val2 );
334 if( !strncasecmp( val2.psz_string, "rtsp", 4 ) )
336 free( val2.psz_string );
341 msg_Err( p_stream, "missing destination and not in rtsp mode" );
345 p_sys->psz_destination = NULL;
347 else if( p_sys->i_port <= 0 )
349 msg_Err( p_stream, "invalid port" );
354 var_Get( p_stream, SOUT_CFG_PREFIX "ttl", &val );
355 if( ( val.i_int > 255 ) || ( val.i_int < 0 ) )
357 msg_Err( p_stream, "illegal TTL %d", val.i_int );
361 p_sys->i_ttl = val.i_int;
363 p_sys->i_payload_type = 96;
368 p_sys->psz_sdp = NULL;
370 p_sys->i_sdp_id = mdate();
371 p_sys->i_sdp_version = 1;
372 p_sys->psz_sdp = NULL;
374 p_sys->b_export_sap = VLC_FALSE;
375 p_sys->b_export_sdp_file = VLC_FALSE;
376 p_sys->p_session = NULL;
378 p_sys->p_httpd_host = NULL;
379 p_sys->p_httpd_file = NULL;
380 p_sys->p_rtsp_host = NULL;
381 p_sys->p_rtsp_url = NULL;
382 p_sys->psz_rtsp_control = NULL;
383 p_sys->psz_rtsp_path = NULL;
385 vlc_mutex_init( p_stream, &p_sys->lock_sdp );
386 vlc_mutex_init( p_stream, &p_sys->lock_es );
388 p_stream->pf_add = Add;
389 p_stream->pf_del = Del;
390 p_stream->pf_send = Send;
392 p_stream->p_sys = p_sys;
394 var_Get( p_stream, SOUT_CFG_PREFIX "mux", &val );
395 if( *val.psz_string )
397 sout_access_out_t *p_grab;
398 char *psz_rtpmap, url[NI_MAXHOST + 8], access[17], psz_ttl[5], ipv;
400 if( !p_sys->psz_destination || *p_sys->psz_destination == '\0' )
402 msg_Err( p_stream, "rtp needs a destination when muxing" );
407 /* Check muxer type */
408 if( !strncasecmp( val.psz_string, "ps", 2 ) || !strncasecmp( val.psz_string, "mpeg1", 5 ) )
410 psz_rtpmap = "MP2P/90000";
412 else if( !strncasecmp( val.psz_string, "ts", 2 ) )
414 psz_rtpmap = "MP2T/90000";
415 p_sys->i_payload_type = 33;
419 msg_Err( p_stream, "unsupported muxer type with rtp (only ts/ps)" );
424 /* create the access out */
425 if( p_sys->i_ttl > 0 )
427 sprintf( access, "udp{raw,ttl=%d}", p_sys->i_ttl );
431 sprintf( access, "udp{raw}" );
434 /* IPv6 needs brackets if not already present */
435 snprintf( url, sizeof( url ),
436 ( ( p_sys->psz_destination[0] != '[' )
437 && ( strchr( p_sys->psz_destination, ':' ) != NULL ) )
438 ? "[%s]:%d" : "%s:%d", p_sys->psz_destination,
440 url[sizeof( url ) - 1] = '\0';
441 /* FIXME: we should check that url is a numerical address, otherwise
442 * the SDP will be quite broken (regardless of the IP protocol version)
444 ipv = ( strchr( p_sys->psz_destination, ':' ) != NULL ) ? '6' : '4';
446 if( !( p_sys->p_access = sout_AccessOutNew( p_sout, access, url ) ) )
448 msg_Err( p_stream, "cannot create the access out for %s://%s",
453 p_sys->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beurk */
454 if( p_sys->i_mtu <= 16 )
456 /* better than nothing */
460 /* the access out grabber TODO export it as sout_AccessOutGrabberNew */
461 p_grab = p_sys->p_grab =
462 vlc_object_create( p_sout, sizeof( sout_access_out_t ) );
463 p_grab->p_module = NULL;
464 p_grab->p_sout = p_sout;
465 p_grab->psz_access = strdup( "grab" );
466 p_grab->p_cfg = NULL;
467 p_grab->psz_name = strdup( "" );
468 p_grab->p_sys = (sout_access_out_sys_t*)p_stream;
469 p_grab->pf_seek = NULL;
470 p_grab->pf_write = AccessOutGrabberWrite;
473 if( !( p_sys->p_mux = sout_MuxNew( p_sout, val.psz_string, p_sys->p_grab ) ) )
475 msg_Err( p_stream, "cannot create the muxer (%s)", val.psz_string );
476 sout_AccessOutDelete( p_sys->p_grab );
477 sout_AccessOutDelete( p_sys->p_access );
482 /* create the SDP for a muxed stream (only once) */
483 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
484 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
485 o= - should be local username (no spaces allowed)
486 o= time should be hashed with some other value to garantue uniqueness
487 o= we need IP6 support?
488 o= don't use the localhost address. use fully qualified domain name or IP4 address
489 p= international phone number (pass via vars?)
491 a= recvonly (missing)
492 a= type:broadcast (missing)
493 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
494 a= x-plgroup: (missing)
495 RTP packets need to get the correct src IP address */
496 if( net_AddressIsMulticast( (vlc_object_t *)p_stream, p_sys->psz_destination ) )
498 snprintf( psz_ttl, sizeof( psz_ttl ), "/%d", p_sys->i_ttl );
499 psz_ttl[sizeof( psz_ttl ) - 1] = '\0';
506 asprintf( &p_sys->psz_sdp,
508 /* FIXME: source address not known :( */
509 "o=- "I64Fd" %d IN IP%c %s\r\n"
514 "t=0 0\r\n" /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
515 "a=tool:"PACKAGE_STRING"\r\n"
517 "m=video %d RTP/AVP %d\r\n"
518 "a=rtpmap:%d %s\r\n",
519 p_sys->i_sdp_id, p_sys->i_sdp_version,
520 ipv, ipv == '6' ? "::1" : "127.0.0.1" /* FIXME */,
521 p_sys->psz_session_name,
522 p_sys->psz_session_description,
523 p_sys->psz_session_url,
524 p_sys->psz_session_email,
525 ipv, p_sys->psz_destination, psz_ttl,
526 p_sys->i_port, p_sys->i_payload_type,
527 p_sys->i_payload_type, psz_rtpmap );
528 fprintf( stderr, "sdp=%s", p_sys->psz_sdp );
530 /* create the rtp context */
531 p_sys->ssrc[0] = rand()&0xff;
532 p_sys->ssrc[1] = rand()&0xff;
533 p_sys->ssrc[2] = rand()&0xff;
534 p_sys->ssrc[3] = rand()&0xff;
535 p_sys->i_sequence = rand()&0xffff;
536 p_sys->i_timestamp_start = rand()&0xffffffff;
537 p_sys->packet = NULL;
542 p_sys->p_access = NULL;
543 p_sys->p_grab = NULL;
545 free( val.psz_string );
548 var_Get( p_stream, SOUT_CFG_PREFIX "sdp", &val );
549 if( *val.psz_string )
553 SDPHandleUrl( p_stream, val.psz_string );
555 for( p_cfg = p_stream->p_cfg; p_cfg != NULL; p_cfg = p_cfg->p_next )
557 if( !strcmp( p_cfg->psz_name, "sdp" ) )
559 if( p_cfg->psz_value == NULL || *p_cfg->psz_value == '\0' )
562 if( !strcmp( p_cfg->psz_value, val.psz_string ) ) /* needed both :sout-rtp-sdp= and rtp{sdp=} can be used */
565 SDPHandleUrl( p_stream, p_cfg->psz_value );
569 free( val.psz_string );
571 /* update p_sout->i_out_pace_nocontrol */
572 p_stream->p_sout->i_out_pace_nocontrol++;
577 /*****************************************************************************
579 *****************************************************************************/
580 static void Close( vlc_object_t * p_this )
582 sout_stream_t *p_stream = (sout_stream_t*)p_this;
583 sout_stream_sys_t *p_sys = p_stream->p_sys;
585 /* update p_sout->i_out_pace_nocontrol */
586 p_stream->p_sout->i_out_pace_nocontrol--;
590 sout_MuxDelete( p_sys->p_mux );
591 sout_AccessOutDelete( p_sys->p_access );
592 sout_AccessOutDelete( p_sys->p_grab );
595 block_Release( p_sys->packet );
599 while( p_sys->i_rtsp > 0 )
601 RtspClientDel( p_stream, p_sys->rtsp[0] );
604 vlc_mutex_destroy( &p_sys->lock_sdp );
606 if( p_sys->p_httpd_file )
608 httpd_FileDelete( p_sys->p_httpd_file );
610 if( p_sys->p_httpd_host )
612 httpd_HostDelete( p_sys->p_httpd_host );
614 if( p_sys->p_rtsp_url )
616 httpd_UrlDelete( p_sys->p_rtsp_url );
618 if( p_sys->p_rtsp_host )
620 httpd_HostDelete( p_sys->p_rtsp_host );
623 /* why? is this disabled? */
624 if( p_sys->psz_session_name )
626 free( p_sys->psz_session_name );
627 p_sys->psz_session_name = NULL;
629 if( p_sys->psz_session_description )
631 free( p_sys->psz_session_description );
632 p_sys->psz_session_description = NULL;
634 if( p_sys->psz_session_url )
636 free( p_sys->psz_session_url );
637 p_sys->psz_session_url = NULL;
639 if( p_sys->psz_session_email )
641 free( p_sys->psz_session_email );
642 p_sys->psz_session_email = NULL;
647 free( p_sys->psz_sdp );
652 /*****************************************************************************
654 *****************************************************************************/
655 static void SDPHandleUrl( sout_stream_t *p_stream, char *psz_url )
657 sout_stream_sys_t *p_sys = p_stream->p_sys;
660 vlc_UrlParse( &url, psz_url, 0 );
661 if( url.psz_protocol && !strcasecmp( url.psz_protocol, "http" ) )
663 if( p_sys->p_httpd_file )
665 msg_Err( p_stream, "You can used sdp=http:// only once" );
669 if( HttpSetup( p_stream, &url ) )
671 msg_Err( p_stream, "cannot export sdp as http" );
674 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "rtsp" ) )
676 if( p_sys->p_rtsp_url )
678 msg_Err( p_stream, "You can used sdp=rtsp:// only once" );
682 /* FIXME test if destination is multicast or no destination at all FIXME */
683 if( RtspSetup( p_stream, &url ) )
685 msg_Err( p_stream, "cannot export sdp as rtsp" );
688 else if( ( url.psz_protocol && !strcasecmp( url.psz_protocol, "sap" ) ) ||
689 ( url.psz_host && !strcasecmp( url.psz_host, "sap" ) ) )
691 p_sys->b_export_sap = VLC_TRUE;
692 SapSetup( p_stream );
694 else if( url.psz_protocol && !strcasecmp( url.psz_protocol, "file" ) )
696 if( p_sys->b_export_sdp_file )
698 msg_Err( p_stream, "You can used sdp=file:// only once" );
701 p_sys->b_export_sdp_file = VLC_TRUE;
702 psz_url = &psz_url[5];
703 if( psz_url[0] == '/' && psz_url[1] == '/' )
705 p_sys->psz_sdp_file = strdup( psz_url );
709 msg_Warn( p_stream, "unknown protocol for SDP (%s)",
712 vlc_UrlClean( &url );
715 /*****************************************************************************
717 *****************************************************************************/
718 /* FIXME http://www.faqs.org/rfcs/rfc2327.html
719 All text fields should be UTF-8 encoded. Use global a:charset to announce this.
720 o= - should be local username (no spaces allowed)
721 o= time should be hashed with some other value to garantue uniqueness
722 o= we need IP6 support?
723 o= don't use the localhost address. use fully qualified domain name or IP4 address
724 p= international phone number (pass via vars?)
726 a= recvonly (missing)
727 a= type:broadcast (missing)
728 a= charset: (normally charset should be UTF-8, this can be used to override s= and i=)
729 a= x-plgroup: (missing)
730 RTP packets need to get the correct src IP address */
731 static char *SDPGenerate( const sout_stream_t *p_stream,
732 const char *psz_destination, vlc_bool_t b_rtsp )
734 sout_stream_sys_t *p_sys = p_stream->p_sys;
736 char *psz_sdp, *p, ipv;
739 /* FIXME: breaks IP version check on unknown destination */
740 if( psz_destination == NULL )
741 psz_destination = "0.0.0.0";
743 i_size = sizeof( "v=0\r\n" ) +
744 sizeof( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
745 sizeof( "s=*\r\n" ) + strlen( p_sys->psz_session_name ) +
746 sizeof( "i=*\r\n" ) + strlen( p_sys->psz_session_description ) +
747 sizeof( "u=*\r\n" ) + strlen( p_sys->psz_session_url ) +
748 sizeof( "e=*\r\n" ) + strlen( p_sys->psz_session_email ) +
749 sizeof( "t=0 0\r\n" ) + /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
750 sizeof( "a=tool:"PACKAGE_STRING"\r\n" ) +
751 sizeof( "c=IN IP4 */*\r\n" ) + 20 + 10 +
752 strlen( psz_destination ) ;
753 for( i = 0; i < p_sys->i_es; i++ )
755 sout_stream_id_t *id = p_sys->es[i];
757 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
760 i_size += strlen( "a=rtpmap:* *\r\n" ) + strlen( id->psz_rtpmap )+10;
764 i_size += strlen( "a=fmtp:* *\r\n" ) + strlen( id->psz_fmtp ) + 10;
768 i_size += strlen( "a=control:*/trackid=*\r\n" ) + strlen( p_sys->psz_rtsp_control ) + 10;
772 ipv = ( strchr( psz_destination, ':' ) != NULL ) ? '6' : '4';
774 p = psz_sdp = malloc( i_size );
775 p += sprintf( p, "v=0\r\n" );
776 p += sprintf( p, "o=- "I64Fd" %d IN IP%c %s\r\n",
777 p_sys->i_sdp_id, p_sys->i_sdp_version,
778 ipv, ipv == '6' ? "::" : "127.0.0.1" );
779 if( *p_sys->psz_session_name )
780 p += sprintf( p, "s=%s\r\n", p_sys->psz_session_name );
781 if( *p_sys->psz_session_description )
782 p += sprintf( p, "i=%s\r\n", p_sys->psz_session_description );
783 if( *p_sys->psz_session_url )
784 p += sprintf( p, "u=%s\r\n", p_sys->psz_session_url );
785 if( *p_sys->psz_session_email )
786 p += sprintf( p, "e=%s\r\n", p_sys->psz_session_email );
788 p += sprintf( p, "t=0 0\r\n" ); /* permanent stream */ /* when scheduled from vlm, we should set this info correctly */
789 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
791 p += sprintf( p, "c=IN IP%c %s", ipv, psz_destination );
793 if( net_AddressIsMulticast( (vlc_object_t *)p_stream, psz_destination ) )
795 /* Add the ttl if it is a multicast address */
796 p += sprintf( p, "/%d\r\n", p_sys->i_ttl );
800 p += sprintf( p, "\r\n" );
803 for( i = 0; i < p_sys->i_es; i++ )
805 sout_stream_id_t *id = p_sys->es[i];
807 if( id->i_cat == AUDIO_ES )
809 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
810 id->i_port, id->i_payload_type );
812 else if( id->i_cat == VIDEO_ES )
814 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
815 id->i_port, id->i_payload_type );
823 p += sprintf( p, "a=rtpmap:%d %s\r\n", id->i_payload_type,
828 p += sprintf( p, "a=fmtp:%d %s\r\n", id->i_payload_type,
833 p += sprintf( p, "a=control:%s/trackid=%d\r\n", p_sys->psz_rtsp_control, i );
840 /*****************************************************************************
842 *****************************************************************************/
843 static int rtp_packetize_l16 ( sout_stream_t *, sout_stream_id_t *, block_t * );
844 static int rtp_packetize_l8 ( sout_stream_t *, sout_stream_id_t *, block_t * );
845 static int rtp_packetize_mpa ( sout_stream_t *, sout_stream_id_t *, block_t * );
846 static int rtp_packetize_mpv ( sout_stream_t *, sout_stream_id_t *, block_t * );
847 static int rtp_packetize_ac3 ( sout_stream_t *, sout_stream_id_t *, block_t * );
848 static int rtp_packetize_split( sout_stream_t *, sout_stream_id_t *, block_t * );
849 static int rtp_packetize_mp4a ( sout_stream_t *, sout_stream_id_t *, block_t * );
850 static int rtp_packetize_h263 ( sout_stream_t *, sout_stream_id_t *, block_t * );
851 static int rtp_packetize_amr ( sout_stream_t *, sout_stream_id_t *, block_t * );
853 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
855 static const char hex[16] = "0123456789abcdef";
858 for( i = 0; i < i_data; i++ )
860 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
861 s[2*i+1] = hex[(p_data[i] )&0xf];
866 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
868 sout_instance_t *p_sout = p_stream->p_sout;
869 sout_stream_sys_t *p_sys = p_stream->p_sys;
870 sout_stream_id_t *id;
871 sout_access_out_t *p_access = NULL;
875 if( p_sys->p_mux != NULL )
877 sout_input_t *p_input = NULL;
878 if( ( p_input = sout_MuxAddStream( p_sys->p_mux, p_fmt ) ) == NULL )
880 msg_Err( p_stream, "cannot add this stream to the muxer" );
884 id = malloc( sizeof( sout_stream_id_t ) );
885 memset( id, 0, sizeof( sout_stream_id_t ) );
887 id->p_input = p_input;
888 id->pf_packetize= NULL;
889 id->p_rtsp_url = NULL;
895 /* Choose the port */
897 if( p_fmt->i_cat == AUDIO_ES && p_sys->i_port_audio > 0 )
899 i_port = p_sys->i_port_audio;
900 p_sys->i_port_audio = 0;
902 else if( p_fmt->i_cat == VIDEO_ES && p_sys->i_port_video > 0 )
904 i_port = p_sys->i_port_video;
905 p_sys->i_port_video = 0;
909 if( p_sys->i_port != p_sys->i_port_audio && p_sys->i_port != p_sys->i_port_video )
911 i_port = p_sys->i_port;
918 if( p_sys->psz_destination )
921 char url[NI_MAXHOST + 8];
923 /* first try to create the access out */
924 if( p_sys->i_ttl > 0 )
926 snprintf( access, sizeof( access ), "udp{raw,ttl=%d}",
928 access[sizeof( access ) - 1] = '\0';
931 strcpy( access, "udp{raw}" );
933 snprintf( url, sizeof( url ), (( p_sys->psz_destination[0] != '[' ) &&
934 strchr( p_sys->psz_destination, ':' )) ? "[%s]:%d" : "%s:%d",
935 p_sys->psz_destination, i_port );
936 url[sizeof( url ) - 1] = '\0';
938 if( ( p_access = sout_AccessOutNew( p_sout, access, url ) ) == NULL )
940 msg_Err( p_stream, "cannot create the access out for %s://%s",
944 msg_Dbg( p_stream, "access out %s:%s", access, url );
947 /* not create the rtp specific stuff */
948 id = malloc( sizeof( sout_stream_id_t ) );
949 memset( id, 0, sizeof( sout_stream_id_t ) );
950 id->p_stream = p_stream;
951 id->p_access = p_access;
953 id->psz_rtpmap = NULL;
955 id->psz_destination = p_sys->psz_destination ? strdup( p_sys->psz_destination ) : NULL;
957 id->p_rtsp_url = NULL;
958 vlc_mutex_init( p_stream, &id->lock_rtsp );
959 id->i_rtsp_access = 0;
960 id->rtsp_access = NULL;
962 switch( p_fmt->i_codec )
964 case VLC_FOURCC( 's', '1', '6', 'b' ):
965 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
967 id->i_payload_type = 11;
969 else if( p_fmt->audio.i_channels == 2 &&
970 p_fmt->audio.i_rate == 44100 )
972 id->i_payload_type = 10;
976 id->i_payload_type = p_sys->i_payload_type++;
978 id->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
979 sprintf( id->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
980 p_fmt->audio.i_channels );
981 id->i_clock_rate = p_fmt->audio.i_rate;
982 id->pf_packetize = rtp_packetize_l16;
984 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
985 id->i_payload_type = p_sys->i_payload_type++;
986 id->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
987 sprintf( id->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
988 p_fmt->audio.i_channels );
989 id->i_clock_rate = p_fmt->audio.i_rate;
990 id->pf_packetize = rtp_packetize_l8;
992 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
993 id->i_payload_type = 14;
994 id->i_clock_rate = 90000;
995 id->psz_rtpmap = strdup( "MPA/90000" );
996 id->pf_packetize = rtp_packetize_mpa;
998 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
999 id->i_payload_type = 32;
1000 id->i_clock_rate = 90000;
1001 id->psz_rtpmap = strdup( "MPV/90000" );
1002 id->pf_packetize = rtp_packetize_mpv;
1004 case VLC_FOURCC( 'a', '5', '2', ' ' ):
1005 id->i_payload_type = p_sys->i_payload_type++;
1006 id->i_clock_rate = 90000;
1007 id->psz_rtpmap = strdup( "ac3/90000" );
1008 id->pf_packetize = rtp_packetize_ac3;
1010 case VLC_FOURCC( 'H', '2', '6', '3' ):
1011 id->i_payload_type = p_sys->i_payload_type++;
1012 id->i_clock_rate = 90000;
1013 id->psz_rtpmap = strdup( "H263-1998/90000" );
1014 id->pf_packetize = rtp_packetize_h263;
1017 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
1019 char hexa[2*p_fmt->i_extra +1];
1021 id->i_payload_type = p_sys->i_payload_type++;
1022 id->i_clock_rate = 90000;
1023 id->psz_rtpmap = strdup( "MP4V-ES/90000" );
1024 id->pf_packetize = rtp_packetize_split;
1025 if( p_fmt->i_extra > 0 )
1027 id->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
1028 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1029 sprintf( id->psz_fmtp,
1030 "profile-level-id=3; config=%s;", hexa );
1034 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
1036 char hexa[2*p_fmt->i_extra +1];
1038 id->i_payload_type = p_sys->i_payload_type++;
1039 id->i_clock_rate = p_fmt->audio.i_rate;
1040 id->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
1041 sprintf( id->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
1042 id->pf_packetize = rtp_packetize_mp4a;
1043 id->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
1044 sprintf_hexa( hexa, p_fmt->p_extra, p_fmt->i_extra );
1045 sprintf( id->psz_fmtp,
1046 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
1047 "config=%s; SizeLength=13;IndexLength=3; "
1048 "IndexDeltaLength=3; Profile=1;", hexa );
1051 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1052 id->i_payload_type = p_sys->i_payload_type++;
1053 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1054 "AMR/8000/2" : "AMR/8000" );
1055 id->psz_fmtp = strdup( "octet-align=1" );
1056 id->i_clock_rate = p_fmt->audio.i_rate;
1057 id->pf_packetize = rtp_packetize_amr;
1059 case VLC_FOURCC( 's', 'a', 'w', 'b' ):
1060 id->i_payload_type = p_sys->i_payload_type++;
1061 id->psz_rtpmap = strdup( p_fmt->audio.i_channels == 2 ?
1062 "AMR-WB/16000/2" : "AMR-WB/16000" );
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;
1069 msg_Err( p_stream, "cannot add this stream (unsupported "
1070 "codec:%4.4s)", (char*)&p_fmt->i_codec );
1073 sout_AccessOutDelete( p_access );
1078 id->i_cat = p_fmt->i_cat;
1080 id->ssrc[0] = rand()&0xff;
1081 id->ssrc[1] = rand()&0xff;
1082 id->ssrc[2] = rand()&0xff;
1083 id->ssrc[3] = rand()&0xff;
1084 id->i_sequence = rand()&0xffff;
1085 id->i_timestamp_start = rand()&0xffffffff;
1087 id->i_mtu = config_GetInt( p_stream, "mtu" ); /* XXX beuk */
1088 if( id->i_mtu <= 16 )
1090 /* better than nothing */
1093 msg_Dbg( p_stream, "using mtu=%d", id->i_mtu );
1095 if( p_sys->p_rtsp_url )
1097 char psz_urlc[strlen( p_sys->psz_rtsp_control ) + 1 + 10];
1099 sprintf( psz_urlc, "%s/trackid=%d", p_sys->psz_rtsp_path, p_sys->i_es );
1100 fprintf( stderr, "rtsp: adding %s\n", psz_urlc );
1101 id->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, psz_urlc, NULL, NULL, NULL );
1103 if( id->p_rtsp_url )
1105 httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_SETUP, RtspCallbackId, (void*)id );
1106 //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
1107 //httpd_UrlCatch( id->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
1112 /* Update p_sys context */
1113 vlc_mutex_lock( &p_sys->lock_es );
1114 TAB_APPEND( p_sys->i_es, p_sys->es, id );
1115 vlc_mutex_unlock( &p_sys->lock_es );
1117 psz_sdp = SDPGenerate( p_stream, p_sys->psz_destination, VLC_FALSE );
1119 vlc_mutex_lock( &p_sys->lock_sdp );
1120 free( p_sys->psz_sdp );
1121 p_sys->psz_sdp = psz_sdp;
1122 vlc_mutex_unlock( &p_sys->lock_sdp );
1124 p_sys->i_sdp_version++;
1126 fprintf( stderr, "sdp=%s", p_sys->psz_sdp );
1128 /* Update SDP (sap/file) */
1129 if( p_sys->b_export_sap ) SapSetup( p_stream );
1130 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1135 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
1137 sout_stream_sys_t *p_sys = p_stream->p_sys;
1139 vlc_mutex_lock( &p_sys->lock_es );
1140 TAB_REMOVE( p_sys->i_es, p_sys->es, id );
1141 vlc_mutex_unlock( &p_sys->lock_es );
1144 if( id->i_port > 0 )
1146 if( id->i_cat == AUDIO_ES && p_sys->i_port_audio == 0 )
1147 p_sys->i_port_audio = id->i_port;
1148 else if( id->i_cat == VIDEO_ES && p_sys->i_port_video == 0 )
1149 p_sys->i_port_video = id->i_port;
1154 if( id->psz_rtpmap )
1156 free( id->psz_rtpmap );
1160 free( id->psz_fmtp );
1162 if( id->psz_destination )
1163 free( id->psz_destination );
1164 sout_AccessOutDelete( id->p_access );
1166 else if( id->p_input )
1168 sout_MuxDeleteStream( p_sys->p_mux, id->p_input );
1170 if( id->p_rtsp_url )
1172 httpd_UrlDelete( id->p_rtsp_url );
1174 vlc_mutex_destroy( &id->lock_rtsp );
1175 if( id->rtsp_access ) free( id->rtsp_access );
1177 /* Update SDP (sap/file) */
1178 if( p_sys->b_export_sap ) SapSetup( p_stream );
1179 if( p_sys->b_export_sdp_file ) FileSetup( p_stream );
1185 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
1190 if( p_stream->p_sys->p_mux )
1192 sout_MuxSendBuffer( p_stream->p_sys->p_mux, id->p_input, p_buffer );
1198 p_next = p_buffer->p_next;
1199 if( id->pf_packetize( p_stream, id, p_buffer ) )
1203 block_Release( p_buffer );
1211 static int AccessOutGrabberWriteBuffer( sout_stream_t *p_stream,
1214 sout_stream_sys_t *p_sys = p_stream->p_sys;
1216 int64_t i_dts = p_buffer->i_dts;
1217 uint32_t i_timestamp = i_dts * 9 / 100;
1219 uint8_t *p_data = p_buffer->p_buffer;
1220 unsigned int i_data = p_buffer->i_buffer;
1221 unsigned int i_max = p_sys->i_mtu - 12;
1223 unsigned i_packet = ( p_buffer->i_buffer + i_max - 1 ) / i_max;
1227 unsigned int i_size;
1229 /* output complete packet */
1230 if( p_sys->packet &&
1231 p_sys->packet->i_buffer + i_data > i_max )
1233 sout_AccessOutWrite( p_sys->p_access, p_sys->packet );
1234 p_sys->packet = NULL;
1237 if( p_sys->packet == NULL )
1239 /* allocate a new packet */
1240 p_sys->packet = block_New( p_stream, p_sys->i_mtu );
1241 p_sys->packet->p_buffer[ 0] = 0x80;
1242 p_sys->packet->p_buffer[ 1] = 0x80|p_sys->i_payload_type;
1243 p_sys->packet->p_buffer[ 2] = ( p_sys->i_sequence >> 8)&0xff;
1244 p_sys->packet->p_buffer[ 3] = ( p_sys->i_sequence )&0xff;
1245 p_sys->packet->p_buffer[ 4] = ( i_timestamp >> 24 )&0xff;
1246 p_sys->packet->p_buffer[ 5] = ( i_timestamp >> 16 )&0xff;
1247 p_sys->packet->p_buffer[ 6] = ( i_timestamp >> 8 )&0xff;
1248 p_sys->packet->p_buffer[ 7] = ( i_timestamp )&0xff;
1249 p_sys->packet->p_buffer[ 8] = p_sys->ssrc[0];
1250 p_sys->packet->p_buffer[ 9] = p_sys->ssrc[1];
1251 p_sys->packet->p_buffer[10] = p_sys->ssrc[2];
1252 p_sys->packet->p_buffer[11] = p_sys->ssrc[3];
1253 p_sys->packet->i_buffer = 12;
1255 p_sys->packet->i_dts = i_dts;
1256 p_sys->packet->i_length = p_buffer->i_length / i_packet;
1257 i_dts += p_sys->packet->i_length;
1259 p_sys->i_sequence++;
1262 i_size = __MIN( i_data,
1263 (unsigned)(p_sys->i_mtu - p_sys->packet->i_buffer) );
1265 memcpy( &p_sys->packet->p_buffer[p_sys->packet->i_buffer],
1268 p_sys->packet->i_buffer += i_size;
1276 static int AccessOutGrabberWrite( sout_access_out_t *p_access,
1279 sout_stream_t *p_stream = (sout_stream_t*)p_access->p_sys;
1281 //fprintf( stderr, "received buffer size=%d\n", p_buffer->i_buffer );
1287 AccessOutGrabberWriteBuffer( p_stream, p_buffer );
1289 p_next = p_buffer->p_next;
1290 block_Release( p_buffer );
1297 /****************************************************************************
1299 ****************************************************************************/
1300 static int SapSetup( sout_stream_t *p_stream )
1302 sout_stream_sys_t *p_sys = p_stream->p_sys;
1303 sout_instance_t *p_sout = p_stream->p_sout;
1304 announce_method_t *p_method = sout_AnnounceMethodCreate( METHOD_TYPE_SAP );
1306 /* Remove the previous session */
1307 if( p_sys->p_session != NULL)
1309 sout_AnnounceUnRegister( p_sout, p_sys->p_session);
1310 sout_AnnounceSessionDestroy( p_sys->p_session );
1311 p_sys->p_session = NULL;
1314 if( ( p_sys->i_es > 0 || p_sys->p_mux ) && p_sys->psz_sdp && *p_sys->psz_sdp )
1316 p_sys->p_session = sout_AnnounceRegisterSDP( p_sout, p_sys->psz_sdp,
1317 p_sys->psz_destination,
1325 /****************************************************************************
1327 ****************************************************************************/
1328 static int FileSetup( sout_stream_t *p_stream )
1330 sout_stream_sys_t *p_sys = p_stream->p_sys;
1333 if( ( f = fopen( p_sys->psz_sdp_file, "wt" ) ) == NULL )
1335 msg_Err( p_stream, "cannot open file '%s' (%s)",
1336 p_sys->psz_sdp_file, strerror(errno) );
1337 return VLC_EGENERIC;
1340 fprintf( f, "%s", p_sys->psz_sdp );
1346 /****************************************************************************
1348 ****************************************************************************/
1349 static int HttpCallback( httpd_file_sys_t *p_args,
1350 httpd_file_t *, uint8_t *p_request,
1351 uint8_t **pp_data, int *pi_data );
1353 static int HttpSetup( sout_stream_t *p_stream, vlc_url_t *url)
1355 sout_stream_sys_t *p_sys = p_stream->p_sys;
1357 p_sys->p_httpd_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 80 );
1358 if( p_sys->p_httpd_host )
1360 p_sys->p_httpd_file = httpd_FileNew( p_sys->p_httpd_host,
1361 url->psz_path ? url->psz_path : "/",
1364 HttpCallback, (void*)p_sys );
1366 if( p_sys->p_httpd_file == NULL )
1368 return VLC_EGENERIC;
1373 static int HttpCallback( httpd_file_sys_t *p_args,
1374 httpd_file_t *f, uint8_t *p_request,
1375 uint8_t **pp_data, int *pi_data )
1377 sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_args;
1379 vlc_mutex_lock( &p_sys->lock_sdp );
1380 if( p_sys->psz_sdp && *p_sys->psz_sdp )
1382 *pi_data = strlen( p_sys->psz_sdp );
1383 *pp_data = malloc( *pi_data );
1384 memcpy( *pp_data, p_sys->psz_sdp, *pi_data );
1391 vlc_mutex_unlock( &p_sys->lock_sdp );
1396 /****************************************************************************
1398 ****************************************************************************/
1399 static rtsp_client_t *RtspClientNew( sout_stream_t *p_stream, char *psz_session )
1401 rtsp_client_t *rtsp = malloc( sizeof( rtsp_client_t ));
1403 rtsp->psz_session = psz_session;
1405 rtsp->b_playing = VLC_FALSE;
1409 rtsp->access = NULL;
1411 TAB_APPEND( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
1415 static rtsp_client_t *RtspClientGet( sout_stream_t *p_stream, char *psz_session )
1418 for( i = 0; i < p_stream->p_sys->i_rtsp; i++ )
1420 if( !strcmp( p_stream->p_sys->rtsp[i]->psz_session, psz_session ) )
1422 return p_stream->p_sys->rtsp[i];
1428 static void RtspClientDel( sout_stream_t *p_stream, rtsp_client_t *rtsp )
1431 TAB_REMOVE( p_stream->p_sys->i_rtsp, p_stream->p_sys->rtsp, rtsp );
1433 for( i = 0; i < rtsp->i_access; i++ )
1435 sout_AccessOutDelete( rtsp->access[i] );
1437 if( rtsp->id ) free( rtsp->id );
1438 if( rtsp->access ) free( rtsp->access );
1440 free( rtsp->psz_session );
1444 static int RtspSetup( sout_stream_t *p_stream, vlc_url_t *url )
1446 sout_stream_sys_t *p_sys = p_stream->p_sys;
1448 fprintf( stderr, "rtsp setup: %s : %d / %s\n", url->psz_host, url->i_port, url->psz_path );
1450 p_sys->p_rtsp_host = httpd_HostNew( VLC_OBJECT(p_stream), url->psz_host, url->i_port > 0 ? url->i_port : 554 );
1451 if( p_sys->p_rtsp_host == NULL )
1453 return VLC_EGENERIC;
1456 p_sys->psz_rtsp_path = strdup( url->psz_path ? url->psz_path : "/" );
1457 p_sys->psz_rtsp_control = malloc (strlen( url->psz_host ) + 20 + strlen( p_sys->psz_rtsp_path ) + 1 );
1458 sprintf( p_sys->psz_rtsp_control, "rtsp://%s:%d%s",
1459 url->psz_host, url->i_port > 0 ? url->i_port : 554, p_sys->psz_rtsp_path );
1461 p_sys->p_rtsp_url = httpd_UrlNewUnique( p_sys->p_rtsp_host, p_sys->psz_rtsp_path, NULL, NULL, NULL );
1462 if( p_sys->p_rtsp_url == 0 )
1464 return VLC_EGENERIC;
1466 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_DESCRIBE, RtspCallback, (void*)p_stream );
1467 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PLAY, RtspCallback, (void*)p_stream );
1468 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_PAUSE, RtspCallback, (void*)p_stream );
1469 httpd_UrlCatch( p_sys->p_rtsp_url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)p_stream );
1474 static int RtspCallback( httpd_callback_sys_t *p_args,
1476 httpd_message_t *answer, httpd_message_t *query )
1478 sout_stream_t *p_stream = (sout_stream_t*)p_args;
1479 sout_stream_sys_t *p_sys = p_stream->p_sys;
1480 char *psz_destination = p_sys->psz_destination;
1481 char *psz_session = NULL;
1483 if( answer == NULL || query == NULL )
1487 fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
1489 answer->i_proto = HTTPD_PROTO_RTSP;
1490 answer->i_version= query->i_version;
1491 answer->i_type = HTTPD_MSG_ANSWER;
1493 switch( query->i_type )
1495 case HTTPD_MSG_DESCRIBE:
1497 char *psz_sdp = SDPGenerate( p_stream, psz_destination ? psz_destination : "0.0.0.0", VLC_TRUE );
1499 answer->i_status = 200;
1500 answer->psz_status = strdup( "OK" );
1501 httpd_MsgAdd( answer, "Content-type", "%s", "application/sdp" );
1503 answer->p_body = (uint8_t *)psz_sdp;
1504 answer->i_body = strlen( psz_sdp );
1508 case HTTPD_MSG_PLAY:
1510 rtsp_client_t *rtsp;
1511 /* for now only multicast so easy */
1512 answer->i_status = 200;
1513 answer->psz_status = strdup( "OK" );
1515 answer->p_body = NULL;
1517 psz_session = httpd_MsgGet( query, "Session" );
1518 rtsp = RtspClientGet( p_stream, psz_session );
1519 if( rtsp && !rtsp->b_playing )
1523 rtsp->b_playing = VLC_TRUE;
1525 vlc_mutex_lock( &p_sys->lock_es );
1526 for( i_id = 0; i_id < rtsp->i_id; i_id++ )
1528 sout_stream_id_t *id = rtsp->id[i_id];
1531 for( i = 0; i < p_sys->i_es; i++ )
1533 if( id == p_sys->es[i] )
1536 if( i >= p_sys->i_es ) continue;
1538 vlc_mutex_lock( &id->lock_rtsp );
1539 TAB_APPEND( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
1540 vlc_mutex_unlock( &id->lock_rtsp );
1542 vlc_mutex_unlock( &p_sys->lock_es );
1546 case HTTPD_MSG_PAUSE:
1548 return VLC_EGENERIC;
1549 case HTTPD_MSG_TEARDOWN:
1551 rtsp_client_t *rtsp;
1553 /* for now only multicast so easy again */
1554 answer->i_status = 200;
1555 answer->psz_status = strdup( "OK" );
1557 answer->p_body = NULL;
1559 psz_session = httpd_MsgGet( query, "Session" );
1560 rtsp = RtspClientGet( p_stream, psz_session );
1565 vlc_mutex_lock( &p_sys->lock_es );
1566 for( i_id = 0; i_id < rtsp->i_id; i_id++ )
1568 sout_stream_id_t *id = rtsp->id[i_id];
1571 for( i = 0; i < p_sys->i_es; i++ )
1573 if( id == p_sys->es[i] )
1576 if( i >= p_sys->i_es ) continue;
1578 vlc_mutex_lock( &id->lock_rtsp );
1579 TAB_REMOVE( id->i_rtsp_access, id->rtsp_access, rtsp->access[i_id] );
1580 vlc_mutex_unlock( &id->lock_rtsp );
1582 vlc_mutex_unlock( &p_sys->lock_es );
1584 RtspClientDel( p_stream, rtsp );
1590 return VLC_EGENERIC;
1592 httpd_MsgAdd( answer, "Server", "VLC Server" );
1593 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1594 httpd_MsgAdd( answer, "Cseq", "%d", atoi( httpd_MsgGet( query, "Cseq" ) ) );
1595 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1599 httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session );
1604 static int RtspCallbackId( httpd_callback_sys_t *p_args,
1606 httpd_message_t *answer, httpd_message_t *query )
1608 sout_stream_id_t *id = (sout_stream_id_t*)p_args;
1609 sout_stream_t *p_stream = id->p_stream;
1610 sout_stream_sys_t *p_sys = p_stream->p_sys;
1611 char *psz_session = NULL;
1613 if( answer == NULL || query == NULL )
1617 fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
1619 answer->i_proto = HTTPD_PROTO_RTSP;
1620 answer->i_version= query->i_version;
1621 answer->i_type = HTTPD_MSG_ANSWER;
1623 switch( query->i_type )
1625 case HTTPD_MSG_SETUP:
1627 char *psz_transport = httpd_MsgGet( query, "Transport" );
1629 fprintf( stderr, "HTTPD_MSG_SETUP: transport=%s\n", psz_transport );
1631 if( strstr( psz_transport, "multicast" ) && id->psz_destination )
1633 fprintf( stderr, "HTTPD_MSG_SETUP: multicast\n" );
1634 answer->i_status = 200;
1635 answer->psz_status = strdup( "OK" );
1637 answer->p_body = NULL;
1638 psz_session = httpd_MsgGet( query, "Session" );
1639 if( *psz_session == 0 )
1641 psz_session = malloc( 100 );
1642 sprintf( psz_session, "%d", rand() );
1644 httpd_MsgAdd( answer, "Transport",
1645 "RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d",
1646 id->psz_destination, id->i_port,id->i_port+1, p_sys->i_ttl );
1648 else if( strstr( psz_transport, "unicast" ) && strstr( psz_transport, "client_port=" ) )
1650 int i_port = atoi( strstr( psz_transport, "client_port=" ) + strlen("client_port=") );
1651 char ip[NI_MAXNUMERICHOST], psz_access[17], psz_url[NI_MAXNUMERICHOST + 8];
1653 sout_access_out_t *p_access;
1655 rtsp_client_t *rtsp = NULL;
1657 if( httpd_ClientIP( cl, ip ) == NULL )
1659 answer->i_status = 500;
1660 answer->psz_status = strdup( "Internal server error" );
1662 answer->p_body = NULL;
1666 fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%d\n",
1669 psz_session = httpd_MsgGet( query, "Session" );
1670 if( *psz_session == 0 )
1672 psz_session = malloc( 100 );
1673 sprintf( psz_session, "%d", rand() );
1675 rtsp = RtspClientNew( p_stream, psz_session );
1679 rtsp = RtspClientGet( p_stream, psz_session );
1682 answer->i_status = 454;
1683 answer->psz_status = strdup( "Unknown session id" );
1685 answer->p_body = NULL;
1690 /* first try to create the access out */
1691 if( p_sys->i_ttl > 0 )
1692 snprintf( psz_access, sizeof( psz_access ),
1693 "udp{raw,ttl=%d}", p_sys->i_ttl );
1695 strncpy( psz_access, "udp{raw}", sizeof( psz_access ) );
1696 psz_access[sizeof( psz_access ) - 1] = '\0';
1698 snprintf( psz_url, sizeof( psz_url ),
1699 ( strchr( ip, ':' ) != NULL ) ? "[%s]:%d" : "%s:%d",
1702 if( ( p_access = sout_AccessOutNew( p_stream->p_sout, psz_access, psz_url ) ) == NULL )
1704 msg_Err( p_stream, "cannot create the access out for %s://%s",
1705 psz_access, psz_url );
1706 answer->i_status = 500;
1707 answer->psz_status = strdup( "Internal server error" );
1709 answer->p_body = NULL;
1713 TAB_APPEND( rtsp->i_id, rtsp->id, id );
1714 TAB_APPEND( rtsp->i_access, rtsp->access, p_access );
1716 answer->i_status = 200;
1717 answer->psz_status = strdup( "OK" );
1719 answer->p_body = NULL;
1721 httpd_MsgAdd( answer, "Transport",
1722 "RTP/AVP/UDP;client_port=%d-%d", i_port, i_port + 1 );
1724 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1726 answer->i_status = 461;
1727 answer->psz_status = strdup( "Unsupported Transport" );
1729 answer->p_body = NULL;
1735 return VLC_EGENERIC;
1737 httpd_MsgAdd( answer, "Server", "VLC Server" );
1738 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1739 httpd_MsgAdd( answer, "Cseq", "%d", atoi( httpd_MsgGet( query, "Cseq" ) ) );
1740 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1744 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1749 /****************************************************************************
1751 ****************************************************************************/
1752 static void rtp_packetize_common( sout_stream_id_t *id, block_t *out,
1753 int b_marker, int64_t i_pts )
1755 uint32_t i_timestamp = i_pts * (int64_t)id->i_clock_rate / I64C(1000000);
1757 out->p_buffer[0] = 0x80;
1758 out->p_buffer[1] = (b_marker?0x80:0x00)|id->i_payload_type;
1759 out->p_buffer[2] = ( id->i_sequence >> 8)&0xff;
1760 out->p_buffer[3] = ( id->i_sequence )&0xff;
1761 out->p_buffer[4] = ( i_timestamp >> 24 )&0xff;
1762 out->p_buffer[5] = ( i_timestamp >> 16 )&0xff;
1763 out->p_buffer[6] = ( i_timestamp >> 8 )&0xff;
1764 out->p_buffer[7] = ( i_timestamp )&0xff;
1766 out->p_buffer[ 8] = id->ssrc[0];
1767 out->p_buffer[ 9] = id->ssrc[1];
1768 out->p_buffer[10] = id->ssrc[2];
1769 out->p_buffer[11] = id->ssrc[3];
1775 static void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
1778 vlc_mutex_lock( &id->lock_rtsp );
1779 for( i = 0; i < id->i_rtsp_access; i++ )
1781 sout_AccessOutWrite( id->rtsp_access[i], block_Duplicate( out ) );
1783 vlc_mutex_unlock( &id->lock_rtsp );
1787 sout_AccessOutWrite( id->p_access, out );
1791 block_Release( out );
1795 static int rtp_packetize_mpa( sout_stream_t *p_stream, sout_stream_id_t *id,
1798 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1799 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1801 uint8_t *p_data = in->p_buffer;
1802 int i_data = in->i_buffer;
1805 for( i = 0; i < i_count; i++ )
1807 int i_payload = __MIN( i_max, i_data );
1808 block_t *out = block_New( p_stream, 16 + i_payload );
1810 /* rtp common header */
1811 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1813 out->p_buffer[12] = 0;
1814 out->p_buffer[13] = 0;
1815 /* fragment offset in the current frame */
1816 out->p_buffer[14] = ( (i*i_max) >> 8 )&0xff;
1817 out->p_buffer[15] = ( (i*i_max) )&0xff;
1818 memcpy( &out->p_buffer[16], p_data, i_payload );
1820 out->i_buffer = 16 + i_payload;
1821 out->i_dts = in->i_dts + i * in->i_length / i_count;
1822 out->i_length = in->i_length / i_count;
1824 rtp_packetize_send( id, out );
1826 p_data += i_payload;
1827 i_data -= i_payload;
1834 static int rtp_packetize_mpv( sout_stream_t *p_stream, sout_stream_id_t *id,
1837 int i_max = id->i_mtu - 12 - 4; /* payload max in one packet */
1838 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1840 uint8_t *p_data = in->p_buffer;
1841 int i_data = in->i_buffer;
1843 int b_sequence_start = 0;
1844 int i_temporal_ref = 0;
1845 int i_picture_coding_type = 0;
1846 int i_fbv = 0, i_bfc = 0, i_ffv = 0, i_ffc = 0;
1847 int b_start_slice = 0;
1849 /* preparse this packet to get some info */
1850 if( in->i_buffer > 4 )
1852 uint8_t *p = p_data;
1853 int i_rest = in->i_buffer;
1857 while( i_rest > 4 &&
1858 ( p[0] != 0x00 || p[1] != 0x00 || p[2] != 0x01 ) )
1872 /* sequence start code */
1873 b_sequence_start = 1;
1875 else if( *p == 0x00 && i_rest >= 4 )
1878 i_temporal_ref = ( p[1] << 2) |((p[2]>>6)&0x03);
1879 i_picture_coding_type = (p[2] >> 3)&0x07;
1881 if( i_rest >= 4 && ( i_picture_coding_type == 2 ||
1882 i_picture_coding_type == 3 ) )
1884 i_ffv = (p[3] >> 2)&0x01;
1885 i_ffc = ((p[3]&0x03) << 1)|((p[4]>>7)&0x01);
1886 if( i_rest > 4 && i_picture_coding_type == 3 )
1888 i_fbv = (p[4]>>6)&0x01;
1889 i_bfc = (p[4]>>3)&0x07;
1893 else if( *p <= 0xaf )
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,
1905 uint32_t h = ( i_temporal_ref << 16 )|
1906 ( b_sequence_start << 13 )|
1907 ( b_start_slice << 12 )|
1908 ( i == i_count - 1 ? 1 << 11 : 0 )|
1909 ( i_picture_coding_type << 8 )|
1910 ( i_fbv << 7 )|( i_bfc << 4 )|( i_ffv << 3 )|i_ffc;
1912 /* rtp common header */
1913 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
1914 in->i_pts > 0 ? in->i_pts : in->i_dts );
1916 /* 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 */
1917 out->p_buffer[12] = ( h >> 24 )&0xff;
1918 out->p_buffer[13] = ( h >> 16 )&0xff;
1919 out->p_buffer[14] = ( h >> 8 )&0xff;
1920 out->p_buffer[15] = ( h )&0xff;
1922 memcpy( &out->p_buffer[16], p_data, i_payload );
1924 out->i_buffer = 16 + i_payload;
1925 out->i_dts = in->i_dts + i * in->i_length / i_count;
1926 out->i_length = in->i_length / i_count;
1928 rtp_packetize_send( id, out );
1930 p_data += i_payload;
1931 i_data -= i_payload;
1936 static int rtp_packetize_ac3( sout_stream_t *p_stream, sout_stream_id_t *id,
1939 int i_max = id->i_mtu - 12 - 2; /* payload max in one packet */
1940 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1942 uint8_t *p_data = in->p_buffer;
1943 int i_data = in->i_buffer;
1946 for( i = 0; i < i_count; i++ )
1948 int i_payload = __MIN( i_max, i_data );
1949 block_t *out = block_New( p_stream, 14 + i_payload );
1951 /* rtp common header */
1952 rtp_packetize_common( id, out, (i == i_count - 1)?1:0, in->i_pts );
1954 out->p_buffer[12] = 1;
1956 out->p_buffer[13] = 0x00;
1958 memcpy( &out->p_buffer[14], p_data, i_payload );
1960 out->i_buffer = 14 + i_payload;
1961 out->i_dts = in->i_dts + i * in->i_length / i_count;
1962 out->i_length = in->i_length / i_count;
1964 rtp_packetize_send( id, out );
1966 p_data += i_payload;
1967 i_data -= i_payload;
1973 static int rtp_packetize_split( sout_stream_t *p_stream, sout_stream_id_t *id,
1976 int i_max = id->i_mtu - 12; /* payload max in one packet */
1977 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
1979 uint8_t *p_data = in->p_buffer;
1980 int i_data = in->i_buffer;
1983 for( i = 0; i < i_count; i++ )
1985 int i_payload = __MIN( i_max, i_data );
1986 block_t *out = block_New( p_stream, 12 + i_payload );
1988 /* rtp common header */
1989 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
1990 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
1991 memcpy( &out->p_buffer[12], p_data, i_payload );
1993 out->i_buffer = 12 + i_payload;
1994 out->i_dts = in->i_dts + i * in->i_length / i_count;
1995 out->i_length = in->i_length / i_count;
1997 rtp_packetize_send( id, out );
1999 p_data += i_payload;
2000 i_data -= i_payload;
2006 static int rtp_packetize_l16( sout_stream_t *p_stream, sout_stream_id_t *id,
2009 int i_max = id->i_mtu - 12; /* payload max in one packet */
2010 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2012 uint8_t *p_data = in->p_buffer;
2013 int i_data = in->i_buffer;
2018 int i_payload = (__MIN( i_max, i_data )/4)*4;
2019 block_t *out = block_New( p_stream, 12 + i_payload );
2021 /* rtp common header */
2022 rtp_packetize_common( id, out, 0,
2023 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2024 memcpy( &out->p_buffer[12], p_data, i_payload );
2026 out->i_buffer = 12 + i_payload;
2027 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
2028 out->i_length = in->i_length / i_count;
2030 rtp_packetize_send( id, out );
2032 p_data += i_payload;
2033 i_data -= i_payload;
2040 static int rtp_packetize_l8( sout_stream_t *p_stream, sout_stream_id_t *id,
2043 int i_max = id->i_mtu - 12; /* payload max in one packet */
2044 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2046 uint8_t *p_data = in->p_buffer;
2047 int i_data = in->i_buffer;
2052 int i_payload = (__MIN( i_max, i_data )/2)*2;
2053 block_t *out = block_New( p_stream, 12 + i_payload );
2055 /* rtp common header */
2056 rtp_packetize_common( id, out, 0,
2057 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2058 memcpy( &out->p_buffer[12], p_data, i_payload );
2060 out->i_buffer = 12 + i_payload;
2061 out->i_dts = in->i_dts + i_packet * in->i_length / i_count;
2062 out->i_length = in->i_length / i_count;
2064 rtp_packetize_send( id, out );
2066 p_data += i_payload;
2067 i_data -= i_payload;
2073 static int rtp_packetize_mp4a( sout_stream_t *p_stream, sout_stream_id_t *id,
2076 int i_max = id->i_mtu - 16; /* payload max in one packet */
2077 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2079 uint8_t *p_data = in->p_buffer;
2080 int i_data = in->i_buffer;
2083 for( i = 0; i < i_count; i++ )
2085 int i_payload = __MIN( i_max, i_data );
2086 block_t *out = block_New( p_stream, 16 + i_payload );
2088 /* rtp common header */
2089 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2090 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2092 /* AU headers length (bits) */
2093 out->p_buffer[12] = 0;
2094 out->p_buffer[13] = 2*8;
2095 /* for each AU length 13 bits + idx 3bits, */
2096 out->p_buffer[14] = ( in->i_buffer >> 5 )&0xff;
2097 out->p_buffer[15] = ( (in->i_buffer&0xff)<<3 )|0;
2099 memcpy( &out->p_buffer[16], p_data, i_payload );
2101 out->i_buffer = 16 + i_payload;
2102 out->i_dts = in->i_dts + i * in->i_length / i_count;
2103 out->i_length = in->i_length / i_count;
2105 rtp_packetize_send( id, out );
2107 p_data += i_payload;
2108 i_data -= i_payload;
2116 #define RTP_H263_HEADER_SIZE (2) // plen = 0
2117 #define RTP_H263_PAYLOAD_START (14) // plen = 0
2118 static int rtp_packetize_h263( sout_stream_t *p_stream, sout_stream_id_t *id,
2121 uint8_t *p_data = in->p_buffer;
2122 int i_data = in->i_buffer;
2124 int i_max = id->i_mtu - 12 - RTP_H263_HEADER_SIZE; /* payload max in one packet */
2127 int b_v_bit = 0; // no pesky error resilience
2128 int i_plen = 0; // normally plen=0 for PSC packet
2129 int i_pebit = 0; // because plen=0
2134 return VLC_EGENERIC;
2136 if( p_data[0] || p_data[1] )
2138 return VLC_EGENERIC;
2140 /* remove 2 leading 0 bytes */
2143 i_count = ( i_data + i_max - 1 ) / i_max;
2145 for( i = 0; i < i_count; i++ )
2147 int i_payload = __MIN( i_max, i_data );
2148 block_t *out = block_New( p_stream,
2149 RTP_H263_PAYLOAD_START + i_payload );
2150 b_p_bit = (i == 0) ? 1 : 0;
2151 h = ( b_p_bit << 10 )|
2156 /* rtp common header */
2157 //b_m_bit = 1; // always contains end of frame
2158 rtp_packetize_common( id, out, (i == i_count - 1)?1:0,
2159 in->i_pts > 0 ? in->i_pts : in->i_dts );
2162 out->p_buffer[12] = ( h >> 8 )&0xff;
2163 out->p_buffer[13] = ( h )&0xff;
2164 memcpy( &out->p_buffer[RTP_H263_PAYLOAD_START], p_data, i_payload );
2166 out->i_buffer = RTP_H263_PAYLOAD_START + i_payload;
2167 out->i_dts = in->i_dts + i * in->i_length / i_count;
2168 out->i_length = in->i_length / i_count;
2170 rtp_packetize_send( id, out );
2172 p_data += i_payload;
2173 i_data -= i_payload;
2179 static int rtp_packetize_amr( sout_stream_t *p_stream, sout_stream_id_t *id,
2182 int i_max = id->i_mtu - 14; /* payload max in one packet */
2183 int i_count = ( in->i_buffer + i_max - 1 ) / i_max;
2185 uint8_t *p_data = in->p_buffer;
2186 int i_data = in->i_buffer;
2189 /* Only supports octet-aligned mode */
2190 for( i = 0; i < i_count; i++ )
2192 int i_payload = __MIN( i_max, i_data );
2193 block_t *out = block_New( p_stream, 14 + i_payload );
2195 /* rtp common header */
2196 rtp_packetize_common( id, out, ((i == i_count - 1)?1:0),
2197 (in->i_pts > 0 ? in->i_pts : in->i_dts) );
2198 /* Payload header */
2199 out->p_buffer[12] = 0xF0; /* CMR */
2200 out->p_buffer[13] = 0x00; /* ToC */ /* FIXME: frame type */
2202 /* FIXME: are we fed multiple frames ? */
2203 memcpy( &out->p_buffer[14], p_data, i_payload );
2205 out->i_buffer = 14 + i_payload;
2206 out->i_dts = in->i_dts + i * in->i_length / i_count;
2207 out->i_length = in->i_length / i_count;
2209 rtp_packetize_send( id, out );
2211 p_data += i_payload;
2212 i_data -= i_payload;