1 /*****************************************************************************
2 * rtsp.c: rtsp VoD server module
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc/input.h>
36 #include "vlc_httpd.h"
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close( vlc_object_t * );
46 #define HOST_TEXT N_( "Host address" )
47 #define HOST_LONGTEXT N_( \
48 "You can set the address, port and path the rtsp interface will bind to." )
51 set_description( _("RTSP VoD server") );
52 set_capability( "vod server", 1 );
53 set_callbacks( Open, Close );
54 add_shortcut( "rtsp" );
55 add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, VLC_TRUE );
58 /*****************************************************************************
60 *****************************************************************************/
65 int64_t i_last; /* for timeout */
67 vlc_bool_t b_playing; /* is it in "play" state */
77 httpd_url_t *p_rtsp_url;
83 uint8_t i_payload_type;
95 httpd_url_t *p_rtsp_url;
96 char *psz_rtsp_control;
99 char *psz_destination;
117 rtsp_client_t **rtsp;
120 char *psz_session_name;
121 char *psz_session_description;
122 char *psz_session_url;
123 char *psz_session_email;
129 httpd_host_t *p_rtsp_host;
139 static vod_media_t *MediaNew( vod_t *, char *, input_item_t * );
140 static void MediaDel( vod_t *, vod_media_t * );
141 static int MediaAddES( vod_t *, vod_media_t *, es_format_t * );
142 static void MediaDelES( vod_t *, vod_media_t *, es_format_t * );
144 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
145 static rtsp_client_t *RtspClientGet( vod_media_t *, char * );
146 static void RtspClientDel( vod_media_t *, rtsp_client_t * );
148 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
149 httpd_message_t *, httpd_message_t * );
150 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
151 httpd_message_t *, httpd_message_t * );
153 static char *SDPGenerate( vod_media_t *, char * );
155 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
157 static const char hex[16] = "0123456789abcdef";
160 for( i = 0; i < i_data; i++ )
162 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
163 s[2*i+1] = hex[(p_data[i] )&0xf];
168 /*****************************************************************************
169 * Open: Starts the RTSP server module
170 *****************************************************************************/
171 static int Open( vlc_object_t *p_this )
173 vod_t *p_vod = (vod_t *)p_this;
174 vod_sys_t *p_sys = 0;
178 psz_url = config_GetPsz( p_vod, "rtsp-host" );
179 vlc_UrlParse( &url, psz_url, 0 );
180 if( psz_url ) free( psz_url );
182 if( !url.psz_host || !*url.psz_host )
184 if( url.psz_host ) free( url.psz_host );
185 url.psz_host = strdup( "localhost" );
187 if( url.i_port <= 0 ) url.i_port = 554;
189 p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
190 if( !p_sys ) goto error;
191 p_sys->p_rtsp_host = 0;
194 httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
195 if( !p_sys->p_rtsp_host )
197 msg_Err( p_vod, "cannot create http server (%s:%i)",
198 url.psz_host, url.i_port );
202 p_sys->psz_host = strdup( url.psz_host );
203 p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
204 p_sys->i_port = url.i_port;
206 vlc_UrlClean( &url );
210 p_vod->pf_media_new = MediaNew;
211 p_vod->pf_media_del = MediaDel;
212 p_vod->pf_media_add_es = MediaAddES;
213 p_vod->pf_media_del_es = MediaDelES;
219 if( p_sys && p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
220 if( p_sys ) free( p_sys );
221 vlc_UrlClean( &url );
225 /*****************************************************************************
227 *****************************************************************************/
228 static void Close( vlc_object_t * p_this )
230 vod_t *p_vod = (vod_t *)p_this;
231 vod_sys_t *p_sys = p_vod->p_sys;
233 httpd_HostDelete( p_sys->p_rtsp_host );
235 /* TODO delete medias */
240 /*****************************************************************************
242 *****************************************************************************/
243 static vod_media_t *MediaNew( vod_t *p_vod, char *psz_name,
244 input_item_t *p_item )
246 vod_sys_t *p_sys = p_vod->p_sys;
247 vod_media_t *p_media = malloc( sizeof(vod_media_t) );
250 memset( p_media, 0, sizeof(vod_media_t) );
254 asprintf( &p_media->psz_rtsp_path, "%s%s", p_sys->psz_path, psz_name );
255 p_media->p_rtsp_url =
256 httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, 0, 0 );
258 if( !p_media->p_rtsp_url )
260 msg_Err( p_vod, "cannot create http url (%s)", p_media->psz_rtsp_path);
261 free( p_media->psz_rtsp_path );
266 msg_Dbg( p_vod, "created rtsp url: %s", p_media->psz_rtsp_path );
268 asprintf( &p_media->psz_rtsp_control, "rtsp://%s:%d%s",
269 p_sys->psz_host, p_sys->i_port, p_media->psz_rtsp_path );
271 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
272 RtspCallback, (void*)p_media );
273 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
274 RtspCallback, (void*)p_media );
275 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
276 RtspCallback, (void*)p_media );
277 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
278 RtspCallback, (void*)p_media );
280 p_media->p_vod = p_vod;
282 TAB_APPEND( p_sys->i_media, p_sys->media, p_media );
284 vlc_mutex_init( p_vod, &p_media->lock );
285 p_media->psz_session_name = strdup("");
286 p_media->psz_session_description = strdup("");
287 p_media->psz_session_url = strdup("");
288 p_media->psz_session_email = strdup("");
290 p_media->i_port_audio = 1234;
291 p_media->i_port_video = 1236;
292 p_media->i_port = 1238;
293 p_media->i_payload_type = 96;
295 p_media->i_sdp_id = mdate();
296 p_media->i_sdp_version = 1;
298 vlc_mutex_lock( &p_item->lock );
299 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
300 for( i = 0; i < p_item->i_es; i++ )
302 MediaAddES( p_vod, p_media, p_item->es[i] );
304 vlc_mutex_unlock( &p_item->lock );
309 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
311 vod_sys_t *p_sys = p_vod->p_sys;
313 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
315 while( p_media->i_rtsp > 0 ) RtspClientDel( p_media, p_media->rtsp[0] );
316 httpd_UrlDelete( p_media->p_rtsp_url );
317 if( p_media->psz_rtsp_path ) free( p_media->psz_rtsp_path );
318 if( p_media->psz_rtsp_control ) free( p_media->psz_rtsp_control );
320 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
322 while( p_media->i_es ) MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
324 vlc_mutex_destroy( &p_media->lock );
328 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
330 media_es_t *p_es = malloc( sizeof(media_es_t) );
333 memset( p_es, 0, sizeof(media_es_t) );
335 /* TODO: update SDP, etc... */
336 asprintf( &psz_urlc, "%s/trackid=%d",
337 p_media->psz_rtsp_path, p_media->i_es );
338 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
340 switch( p_fmt->i_codec )
342 case VLC_FOURCC( 's', '1', '6', 'b' ):
343 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
345 p_es->i_payload_type = 11;
347 else if( p_fmt->audio.i_channels == 2 && p_fmt->audio.i_rate == 44100 )
349 p_es->i_payload_type = 10;
353 p_es->i_payload_type = p_media->i_payload_type++;
356 p_es->psz_rtpmap = malloc( strlen( "L16/*/*" ) + 20+1 );
357 sprintf( p_es->psz_rtpmap, "L16/%d/%d", p_fmt->audio.i_rate,
358 p_fmt->audio.i_channels );
360 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
361 p_es->i_payload_type = p_media->i_payload_type++;
362 p_es->psz_rtpmap = malloc( strlen( "L8/*/*" ) + 20+1 );
363 sprintf( p_es->psz_rtpmap, "L8/%d/%d", p_fmt->audio.i_rate,
364 p_fmt->audio.i_channels );
366 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
367 p_es->i_payload_type = 14;
368 p_es->psz_rtpmap = strdup( "MPA/90000" );
370 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
371 p_es->i_payload_type = 32;
372 p_es->psz_rtpmap = strdup( "MPV/90000" );
374 case VLC_FOURCC( 'a', '5', '2', ' ' ):
375 p_es->i_payload_type = p_media->i_payload_type++;
376 p_es->psz_rtpmap = strdup( "ac3/90000" );
378 case VLC_FOURCC( 'H', '2', '6', '3' ):
379 p_es->i_payload_type = p_media->i_payload_type++;
380 p_es->psz_rtpmap = strdup( "H263-1998/90000" );
382 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
383 p_es->i_payload_type = p_media->i_payload_type++;
384 p_es->psz_rtpmap = strdup( "MP4V-ES/90000" );
385 if( p_fmt->i_extra > 0 )
387 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
388 p_es->psz_fmtp = malloc( 100 + 2 * p_fmt->i_extra );
389 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
390 sprintf( p_es->psz_fmtp,
391 "profile-level-id=3; config=%s;", p_hexa );
395 case VLC_FOURCC( 'm', 'p', '4', 'a' ):
396 p_es->i_payload_type = p_media->i_payload_type++;
397 p_es->psz_rtpmap = malloc( strlen( "mpeg4-generic/" ) + 12 );
398 sprintf( p_es->psz_rtpmap, "mpeg4-generic/%d", p_fmt->audio.i_rate );
399 if( p_fmt->i_extra > 0 )
401 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
402 p_es->psz_fmtp = malloc( 200 + 2 * p_fmt->i_extra );
403 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
404 sprintf( p_es->psz_fmtp,
405 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
406 "config=%s; SizeLength=13;IndexLength=3; "
407 "IndexDeltaLength=3; Profile=1;", p_hexa );
413 msg_Err( p_vod, "cannot add this stream (unsupported "
414 "codec: %4.4s)", (char*)&p_fmt->i_codec );
420 httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, 0, 0 );
422 if( !p_es->p_rtsp_url )
424 msg_Err( p_vod, "cannot create http url (%s)", psz_urlc );
431 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
432 RtspCallbackES, (void*)p_es );
434 es_format_Copy( &p_es->fmt, p_fmt );
436 p_es->p_media = p_media;
438 /* Choose the port */
439 if( p_fmt->i_cat == AUDIO_ES && p_media->i_port_audio > 0 )
441 p_es->i_port = p_media->i_port_audio;
442 p_media->i_port_audio = 0;
444 else if( p_fmt->i_cat == VIDEO_ES && p_media->i_port_video > 0 )
446 p_es->i_port = p_media->i_port_video;
447 p_media->i_port_video = 0;
449 while( !p_es->i_port )
451 if( p_media->i_port != p_media->i_port_audio &&
452 p_media->i_port != p_media->i_port_video )
454 p_es->i_port = p_media->i_port;
455 p_media->i_port += 2;
458 p_media->i_port += 2;
461 vlc_mutex_lock( &p_media->lock );
462 TAB_APPEND( p_media->i_es, p_media->es, p_es );
463 vlc_mutex_unlock( &p_media->lock );
465 p_media->i_sdp_version++;
470 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
472 media_es_t *p_es = 0;
476 for( i = 0; i < p_media->i_es; i++ )
478 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
479 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
480 p_media->es[i]->fmt.i_id == p_fmt->i_id )
482 p_es = p_media->es[i];
487 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
489 vlc_mutex_lock( &p_media->lock );
490 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
491 vlc_mutex_unlock( &p_media->lock );
493 if( p_es->psz_rtpmap ) free( p_es->psz_rtpmap );
494 if( p_es->psz_fmtp ) free( p_es->psz_fmtp );
495 p_media->i_sdp_version++;
497 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
498 es_format_Clean( &p_es->fmt );
501 /****************************************************************************
502 * RTSP server implementation
503 ****************************************************************************/
504 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
506 rtsp_client_t *p_rtsp = malloc( sizeof(rtsp_client_t) );
508 p_rtsp->psz_session = psz_session;
510 p_rtsp->b_playing = VLC_FALSE;
512 TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
514 msg_Dbg( p_media->p_vod, "new session: %s", psz_session );
519 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, char *psz_session )
523 for( i = 0; psz_session && i < p_media->i_rtsp; i++ )
525 if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
527 return p_media->rtsp[i];
534 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
536 msg_Dbg( p_media->p_vod, "closing session: %s", p_rtsp->psz_session );
538 TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
540 free( p_rtsp->psz_session );
544 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
545 httpd_message_t *answer, httpd_message_t *query )
547 vod_media_t *p_media = (vod_media_t*)p_args;
548 vod_t *p_vod = p_media->p_vod;
549 char *psz_destination = p_media->psz_destination;
550 char *psz_session = NULL;
552 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
554 fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
556 answer->i_proto = HTTPD_PROTO_RTSP;
557 answer->i_version = query->i_version;
558 answer->i_type = HTTPD_MSG_ANSWER;
560 switch( query->i_type )
562 case HTTPD_MSG_DESCRIBE:
565 SDPGenerate( p_media, psz_destination ?
566 psz_destination : "0.0.0.0" );
568 answer->i_status = 200;
569 answer->psz_status = strdup( "OK" );
570 httpd_MsgAdd( answer, "Content-type", "%s", "application/sdp" );
572 answer->p_body = psz_sdp;
573 answer->i_body = strlen( psz_sdp );
580 char *psz_output, *ip;
581 int i, i_port_audio = 0, i_port_video = 0;
583 /* for now only multicast so easy */
584 answer->i_status = 200;
585 answer->psz_status = strdup( "OK" );
587 answer->p_body = NULL;
589 psz_session = httpd_MsgGet( query, "Session" );
590 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
592 rtsp = RtspClientGet( p_media, psz_session );
593 if( !rtsp || rtsp->b_playing ) break;
594 if( !(ip = httpd_ClientIP( cl )) ) break;
596 rtsp->b_playing = VLC_TRUE;
598 /* FIXME for != 1 video and 1 audio */
599 for( i = 0; i < p_media->i_es; i++ )
601 if( p_media->es[i]->fmt.i_cat == AUDIO_ES )
602 i_port_audio = p_media->es[i]->i_port;
603 if( p_media->es[i]->fmt.i_cat == VIDEO_ES )
604 i_port_video = p_media->es[i]->i_port;
607 asprintf( &psz_output, "rtp{dst=%s,port-video=%i,port-audio=%i}",
608 ip, i_port_video, i_port_audio );
609 vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PLAY,
616 case HTTPD_MSG_PAUSE:
617 psz_session = httpd_MsgGet( query, "Session" );
618 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
620 vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_PAUSE );
621 /* TODO: do something useful */
624 case HTTPD_MSG_TEARDOWN:
628 /* for now only multicast so easy again */
629 answer->i_status = 200;
630 answer->psz_status = strdup( "OK" );
632 answer->p_body = NULL;
634 psz_session = httpd_MsgGet( query, "Session" );
635 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
637 rtsp = RtspClientGet( p_media, psz_session );
640 vod_MediaControl( p_vod, p_media, psz_session, VOD_MEDIA_STOP );
641 RtspClientDel( p_media, rtsp );
649 httpd_MsgAdd( answer, "Server", "VLC Server" );
650 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
651 httpd_MsgAdd( answer, "Cseq", "%d",
652 atoi( httpd_MsgGet( query, "Cseq" ) ) );
653 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
657 httpd_MsgAdd( answer, "Session", "%s;timeout=5", psz_session );
663 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
664 httpd_message_t *answer, httpd_message_t *query )
666 media_es_t *p_es = (media_es_t*)p_args;
667 vod_media_t *p_media = p_es->p_media;
668 vod_t *p_vod = p_media->p_vod;
669 char *psz_session = NULL;
670 char *psz_transport = NULL;
672 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
674 fprintf( stderr, "RtspCallback query: type=%d\n", query->i_type );
676 answer->i_proto = HTTPD_PROTO_RTSP;
677 answer->i_version = query->i_version;
678 answer->i_type = HTTPD_MSG_ANSWER;
680 switch( query->i_type )
682 case HTTPD_MSG_SETUP:
683 psz_transport = httpd_MsgGet( query, "Transport" );
684 fprintf( stderr, "HTTPD_MSG_SETUP: transport=%s\n", psz_transport );
686 if( strstr( psz_transport, "multicast" ) && p_media->psz_destination )
688 fprintf( stderr, "HTTPD_MSG_SETUP: multicast\n" );
689 answer->i_status = 200;
690 answer->psz_status = strdup( "OK" );
692 answer->p_body = NULL;
694 psz_session = httpd_MsgGet( query, "Session" );
695 if( !psz_session || !*psz_session )
697 asprintf( &psz_session, "%d", rand() );
700 httpd_MsgAdd( answer, "Transport",
701 "RTP/AVP/UDP;destination=%s;port=%d-%d;ttl=%d",
702 p_media->psz_destination, p_media->i_port,
703 p_media->i_port+1, p_media->i_ttl );
705 else if( strstr( psz_transport, "unicast" ) &&
706 strstr( psz_transport, "client_port=" ) )
708 rtsp_client_t *rtsp = NULL;
709 char *ip = httpd_ClientIP( cl );
710 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
711 strlen("client_port=") );
715 answer->i_status = 400;
716 answer->psz_status = strdup( "Internal server error" );
718 answer->p_body = NULL;
722 fprintf( stderr, "HTTPD_MSG_SETUP: unicast ip=%s port=%d\n",
725 psz_session = httpd_MsgGet( query, "Session" );
726 if( !psz_session || !*psz_session )
728 asprintf( &psz_session, "%d", rand() );
729 rtsp = RtspClientNew( p_media, psz_session );
733 rtsp = RtspClientGet( p_media, psz_session );
736 /* FIXME right error code */
737 answer->i_status = 400;
738 answer->psz_status = strdup( "Unknown session id" );
740 answer->p_body = NULL;
746 /* TODO: do something useful */
748 answer->i_status = 200;
749 answer->psz_status = strdup( "OK" );
751 answer->p_body = NULL;
753 httpd_MsgAdd( answer, "Transport", "RTP/AVP/UDP;client_port=%d-%d",
754 i_port, i_port + 1 );
756 else /* TODO strstr( psz_transport, "interleaved" ) ) */
758 answer->i_status = 400;
759 answer->psz_status = strdup( "Bad Request" );
761 answer->p_body = NULL;
770 httpd_MsgAdd( answer, "Server", "VLC Server" );
771 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
772 httpd_MsgAdd( answer, "Cseq", "%d",
773 atoi( httpd_MsgGet( query, "Cseq" ) ) );
774 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
778 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
784 /*****************************************************************************
786 * FIXME: need to be moved to a common place ?
787 *****************************************************************************/
788 static char *SDPGenerate( vod_media_t *p_media, char *psz_destination )
798 i_size = strlen( "v=0\r\n" ) +
799 strlen( "o=- * * IN IP4 127.0.0.1\r\n" ) + 10 + 10 +
800 strlen( "s=*\r\n" ) + strlen( p_media->psz_session_name ) +
801 strlen( "i=*\r\n" ) + strlen( p_media->psz_session_description ) +
802 strlen( "u=*\r\n" ) + strlen( p_media->psz_session_url ) +
803 strlen( "e=*\r\n" ) + strlen( p_media->psz_session_email ) +
804 strlen( "t=0 0\r\n" ) + /* FIXME */
805 strlen( "a=tool:"PACKAGE_STRING"\r\n" ) +
806 strlen( "c=IN IP4 */*\r\n" ) + 20 + 10 +
807 strlen( psz_destination ? psz_destination : "0.0.0.0" ) ;
809 for( i = 0; i < p_media->i_es; i++ )
811 media_es_t *p_es = p_media->es[i];
813 i_size += strlen( "m=**d*o * RTP/AVP *\r\n" ) + 10 + 10;
814 if( p_es->psz_rtpmap )
816 i_size += strlen( "a=rtpmap:* *\r\n" ) +
817 strlen( p_es->psz_rtpmap ) + 10;
821 i_size += strlen( "a=fmtp:* *\r\n" ) +
822 strlen( p_es->psz_fmtp ) + 10;
825 i_size += strlen( "a=control:*/trackid=*\r\n" ) +
826 strlen( p_media->psz_rtsp_control ) + 10;
829 p = psz_sdp = malloc( i_size );
830 p += sprintf( p, "v=0\r\n" );
831 p += sprintf( p, "o=- "I64Fd" %d IN IP4 127.0.0.1\r\n",
832 p_media->i_sdp_id, p_media->i_sdp_version );
833 if( *p_media->psz_session_name )
834 p += sprintf( p, "s=%s\r\n", p_media->psz_session_name );
835 if( *p_media->psz_session_description )
836 p += sprintf( p, "i=%s\r\n", p_media->psz_session_description );
837 if( *p_media->psz_session_url )
838 p += sprintf( p, "u=%s\r\n", p_media->psz_session_url );
839 if( *p_media->psz_session_email )
840 p += sprintf( p, "e=%s\r\n", p_media->psz_session_email );
842 p += sprintf( p, "t=0 0\r\n" ); /* FIXME */
843 p += sprintf( p, "a=tool:"PACKAGE_STRING"\r\n" );
845 p += sprintf( p, "c=IN IP4 %s/%d\r\n", psz_destination ?
846 psz_destination : "0.0.0.0", p_media->i_ttl );
848 for( i = 0; i < p_media->i_es; i++ )
850 media_es_t *p_es = p_media->es[i];
852 if( p_es->fmt.i_cat == AUDIO_ES )
854 p += sprintf( p, "m=audio %d RTP/AVP %d\r\n",
855 p_es->i_port, p_es->i_payload_type );
857 else if( p_es->fmt.i_cat == VIDEO_ES )
859 p += sprintf( p, "m=video %d RTP/AVP %d\r\n",
860 p_es->i_port, p_es->i_payload_type );
867 if( p_es->psz_rtpmap )
869 p += sprintf( p, "a=rtpmap:%d %s\r\n", p_es->i_payload_type,
874 p += sprintf( p, "a=fmtp:%d %s\r\n", p_es->i_payload_type,
878 p += sprintf( p, "a=control:%s/trackid=%d\r\n",
879 p_media->psz_rtsp_control, i );
882 fprintf( stderr, psz_sdp );