1 /*****************************************************************************
2 * rtsp.c: rtsp VoD server module
3 *****************************************************************************
4 * Copyright (C) 2003-2006 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_input.h>
37 #include <vlc_block.h>
39 #include <vlc_httpd.h>
42 #include <vlc_network.h>
43 #include <vlc_charset.h>
44 #include <vlc_strings.h>
55 /*****************************************************************************
57 *****************************************************************************/
58 static int Open ( vlc_object_t * );
59 static void Close( vlc_object_t * );
61 #define HOST_TEXT N_( "RTSP host address" )
62 #define HOST_LONGTEXT N_( \
63 "This defines the address, port and path the RTSP VOD server will listen " \
64 "on.\nSyntax is address:port/path. The default is to listen on all "\
65 "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
66 "only on the local interface, use \"localhost\" as address." )
68 #define THROTTLE_TEXT N_( "Maximum number of connections" )
69 #define THROTTLE_LONGTEXT N_( "This limits the maximum number of clients " \
70 "that can connect to the RTSP VOD. 0 means no limit." )
72 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
74 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
76 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
77 "to the RTSP session ID string. Setting it to a negative number removes " \
78 "the timeout option entirely. This is needed by some IPTV STBs (such as " \
79 "those made by HansunTech) which get confused by it. The default is 5." )
82 set_shortname( N_("RTSP VoD" ) )
83 set_description( N_("RTSP VoD server") )
84 set_category( CAT_SOUT )
85 set_subcategory( SUBCAT_SOUT_VOD )
86 set_capability( "vod server", 1 )
87 set_callbacks( Open, Close )
88 add_shortcut( "rtsp" )
89 add_string ( "rtsp-host", NULL, NULL, HOST_TEXT, HOST_LONGTEXT, true )
90 add_string( "rtsp-raw-mux", "ts", NULL, RAWMUX_TEXT,
92 add_integer( "rtsp-throttle-users", 0, NULL, THROTTLE_TEXT,
93 THROTTLE_LONGTEXT, true )
94 add_integer( "rtsp-session-timeout", 5, NULL, SESSION_TIMEOUT_TEXT,
95 SESSION_TIMEOUT_LONGTEXT, true )
98 /*****************************************************************************
100 *****************************************************************************/
102 typedef struct media_es_t media_es_t;
106 media_es_t *p_media_es;
115 bool b_playing; /* is it in "play" state */
116 bool b_paused; /* is it in "pause" state */
119 rtsp_client_es_t **es;
129 httpd_url_t *p_rtsp_url;
131 vod_media_t *p_media;
134 uint8_t i_payload_type;
135 const char *psz_ptname;
136 unsigned i_clock_rate;
150 httpd_url_t *p_rtsp_url;
151 char *psz_rtsp_control_v4;
152 char *psz_rtsp_control_v6;
167 rtsp_client_t **rtsp;
176 httpd_host_t *p_rtsp_host;
179 int i_throttle_users;
184 int i_session_timeout;
192 block_fifo_t *p_fifo_cmd;
195 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
198 RTSP_CMD_TYPE_NONE, /* Exit requested */
204 RTSP_CMD_TYPE_REWIND,
205 RTSP_CMD_TYPE_FORWARD,
216 vod_media_t *p_media;
222 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
223 static void MediaDel( vod_t *, vod_media_t * );
224 static void MediaAskDel ( vod_t *, vod_media_t * );
225 static int MediaAddES( vod_t *, vod_media_t *, es_format_t * );
226 static void MediaDelES( vod_t *, vod_media_t *, es_format_t * );
228 static void* CommandThread( vlc_object_t *p_this );
229 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *, const char *psz_session,
230 double f_arg, const char *psz_arg );
232 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
233 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
234 static void RtspClientDel( vod_media_t *, rtsp_client_t * );
236 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
237 httpd_message_t *, const httpd_message_t * );
238 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
239 httpd_message_t *, const httpd_message_t * );
241 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
243 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
245 static const char hex[16] = "0123456789abcdef";
247 for( int i = 0; i < i_data; i++ )
249 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
250 s[2*i+1] = hex[(p_data[i] )&0xf];
255 /*****************************************************************************
256 * Open: Starts the RTSP server module
257 *****************************************************************************/
258 static int Open( vlc_object_t *p_this )
260 vod_t *p_vod = (vod_t *)p_this;
261 vod_sys_t *p_sys = NULL;
262 char *psz_url = NULL;
265 psz_url = var_InheritString( p_vod, "rtsp-host" );
266 vlc_UrlParse( &url, psz_url, 0 );
269 if( url.i_port <= 0 ) url.i_port = 554;
271 p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
272 if( !p_sys ) goto error;
273 p_sys->p_rtsp_host = 0;
275 p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
277 p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
278 msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
279 p_sys->i_connections = 0;
281 p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
284 httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
285 if( !p_sys->p_rtsp_host )
287 msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
288 url.psz_host, url.i_port );
292 p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
293 p_sys->i_port = url.i_port;
295 vlc_UrlClean( &url );
297 TAB_INIT( p_sys->i_media, p_sys->media );
298 p_sys->i_media_id = 0;
300 p_vod->pf_media_new = MediaNew;
301 p_vod->pf_media_del = MediaAskDel;
302 p_vod->pf_media_add_es = MediaAddES;
303 p_vod->pf_media_del_es = MediaDelES;
305 p_sys->p_fifo_cmd = block_FifoNew();
306 if( vlc_thread_create( p_vod, "rtsp vod thread", CommandThread,
307 VLC_THREAD_PRIORITY_LOW ) )
309 msg_Err( p_vod, "cannot spawn rtsp vod thread" );
310 block_FifoRelease( p_sys->p_fifo_cmd );
311 free( p_sys->psz_path );
320 if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
321 free( p_sys->psz_raw_mux );
324 vlc_UrlClean( &url );
329 /*****************************************************************************
331 *****************************************************************************/
332 static void Close( vlc_object_t * p_this )
334 vod_t *p_vod = (vod_t *)p_this;
335 vod_sys_t *p_sys = p_vod->p_sys;
337 /* Stop command thread */
338 vlc_object_kill( p_vod );
339 CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0.0, NULL );
340 vlc_thread_join( p_vod );
342 while( block_FifoCount( p_sys->p_fifo_cmd ) > 0 )
345 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
346 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
347 block_Release( p_block_cmd );
348 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
349 MediaDel(p_vod, cmd.p_media);
350 free( cmd.psz_session );
353 block_FifoRelease( p_sys->p_fifo_cmd );
355 httpd_HostDelete( p_sys->p_rtsp_host );
356 var_Destroy( p_this, "rtsp-session-timeout" );
357 var_Destroy( p_this, "rtsp-throttle-users" );
358 var_Destroy( p_this, "rtsp-raw-mux" );
360 /* Check VLM is not buggy */
361 if( p_sys->i_media > 0 )
362 msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
363 TAB_CLEAN( p_sys->i_media, p_sys->media );
365 free( p_sys->psz_path );
366 free( p_sys->psz_raw_mux );
370 /*****************************************************************************
372 *****************************************************************************/
373 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
374 input_item_t *p_item )
376 vod_sys_t *p_sys = p_vod->p_sys;
378 vod_media_t *p_media = calloc( 1, sizeof(vod_media_t) );
382 p_media->id = p_sys->i_media_id++;
383 TAB_INIT( p_media->i_es, p_media->es );
384 p_media->psz_mux = NULL;
385 TAB_INIT( p_media->i_rtsp, p_media->rtsp );
386 p_media->b_raw = false;
388 if( asprintf( &p_media->psz_rtsp_path, "%s%s",
389 p_sys->psz_path, psz_name ) <0 )
391 p_media->p_rtsp_url =
392 httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
395 if( !p_media->p_rtsp_url )
397 msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
398 free( p_media->psz_rtsp_path );
403 msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
405 if( asprintf( &p_media->psz_rtsp_control_v4,
406 "rtsp://%%s:%d%s/trackID=%%d",
407 p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
409 httpd_UrlDelete( p_media->p_rtsp_url );
410 free( p_media->psz_rtsp_path );
414 if( asprintf( &p_media->psz_rtsp_control_v6,
415 "rtsp://[%%s]:%d%s/trackID=%%d",
416 p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
418 httpd_UrlDelete( p_media->p_rtsp_url );
419 free( p_media->psz_rtsp_path );
424 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
425 RtspCallback, (void*)p_media );
426 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
427 RtspCallback, (void*)p_media );
428 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
429 RtspCallback, (void*)p_media );
430 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
431 RtspCallback, (void*)p_media );
432 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
433 RtspCallback, (void*)p_media );
434 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
435 RtspCallback, (void*)p_media );
437 p_media->p_vod = p_vod;
439 vlc_mutex_init( &p_media->lock );
441 p_media->i_payload_type = 96;
443 p_media->i_length = input_item_GetDuration( p_item );
445 vlc_mutex_lock( &p_item->lock );
446 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
447 for( int i = 0; i < p_item->i_es; i++ )
449 MediaAddES( p_vod, p_media, p_item->es[i] );
451 vlc_mutex_unlock( &p_item->lock );
453 CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0.0, NULL );
457 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
459 CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0.0, NULL );
462 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
464 vod_sys_t *p_sys = p_vod->p_sys;
466 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
468 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
470 httpd_UrlDelete( p_media->p_rtsp_url );
472 while( p_media->i_rtsp > 0 )
473 RtspClientDel( p_media, p_media->rtsp[0] );
474 TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
476 free( p_media->psz_rtsp_path );
477 free( p_media->psz_rtsp_control_v6 );
478 free( p_media->psz_rtsp_control_v4 );
480 while( p_media->i_es )
481 MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
482 TAB_CLEAN( p_media->i_es, p_media->es );
484 vlc_mutex_destroy( &p_media->lock );
489 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
493 if( p_media->i_payload_type >= 128 )
495 msg_Err( p_vod, "too many elementary streams");
499 media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
503 p_media->psz_mux = NULL;
505 /* TODO: update SDP, etc... */
506 if( asprintf( &psz_urlc, "%s/trackID=%d",
507 p_media->psz_rtsp_path, p_media->i_es ) < 0 )
512 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
514 p_es->i_clock_rate = 90000;
515 p_es->i_channels = 1;
517 switch( p_fmt->i_codec )
520 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
522 p_es->i_payload_type = 11;
524 else if( p_fmt->audio.i_channels == 2 &&
525 p_fmt->audio.i_rate == 44100 )
527 p_es->i_payload_type = 10;
531 p_es->i_payload_type = p_media->i_payload_type++;
533 p_es->psz_ptname = "L16";
534 p_es->i_clock_rate = p_fmt->audio.i_rate;
535 p_es->i_channels = p_fmt->audio.i_channels;
538 p_es->i_payload_type = p_media->i_payload_type++;
539 p_es->psz_ptname = "L8";
540 p_es->i_clock_rate = p_fmt->audio.i_rate;
541 p_es->i_channels = p_fmt->audio.i_channels;
544 p_es->i_payload_type = 14;
545 p_es->psz_ptname = "MPA";
548 p_es->i_payload_type = 32;
549 p_es->psz_ptname = "MPV";
552 p_es->i_payload_type = p_media->i_payload_type++;
553 p_es->psz_ptname = "ac3";
554 p_es->i_clock_rate = p_fmt->audio.i_rate;
557 p_es->i_payload_type = p_media->i_payload_type++;
558 p_es->psz_ptname = "H263-1998";
561 p_es->i_payload_type = p_media->i_payload_type++;
562 p_es->psz_ptname = "H264";
563 p_es->psz_fmtp = NULL;
564 /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
565 if( p_fmt->i_extra > 0 )
567 uint8_t *p_buffer = p_fmt->p_extra;
568 int i_buffer = p_fmt->i_extra;
569 char *p_64_sps = NULL;
570 char *p_64_pps = NULL;
573 while( i_buffer > 4 &&
574 p_buffer[0] == 0 && p_buffer[1] == 0 &&
575 p_buffer[2] == 0 && p_buffer[3] == 1 )
577 const int i_nal_type = p_buffer[4]&0x1f;
582 for( i_offset = 4; i_offset+3 < i_buffer ; i_offset++)
584 if( p_buffer[i_offset] == 0 && p_buffer[i_offset+1] == 0 && p_buffer[i_offset+2] == 0 && p_buffer[i_offset+3] == 1 )
586 /* we found another startcode */
591 if( i_nal_type == 7 )
594 p_64_sps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
595 sprintf_hexa( hexa, &p_buffer[5], 3 );
597 else if( i_nal_type == 8 )
600 p_64_pps = vlc_b64_encode_binary( &p_buffer[4], i_size - 4 );
606 if( p_64_sps && p_64_pps )
608 if( asprintf( &p_es->psz_fmtp,
609 "packetization-mode=1;profile-level-id=%s;"
610 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
623 if( !p_es->psz_fmtp )
624 p_es->psz_fmtp = strdup( "packetization-mode=1" );
627 p_es->i_payload_type = p_media->i_payload_type++;
628 p_es->psz_ptname = "MP4V-ES";
629 if( p_fmt->i_extra > 0 )
631 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
632 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
633 if( asprintf( &p_es->psz_fmtp,
634 "profile-level-id=3; config=%s;", p_hexa ) == -1 )
635 p_es->psz_fmtp = NULL;
640 p_es->i_payload_type = p_media->i_payload_type++;
641 p_es->psz_ptname = "mpeg4-generic";
642 p_es->i_clock_rate = p_fmt->audio.i_rate;
643 if( p_fmt->i_extra > 0 )
645 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
646 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
647 if( asprintf( &p_es->psz_fmtp,
648 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
649 "config=%s; SizeLength=13;IndexLength=3; "
650 "IndexDeltaLength=3; Profile=1;", p_hexa ) == -1 )
651 p_es->psz_fmtp = NULL;
655 case VLC_FOURCC( 'm', 'p', '2', 't' ):
656 p_media->psz_mux = "ts";
657 p_es->i_payload_type = 33;
658 p_es->psz_ptname = "MP2T";
660 case VLC_FOURCC( 'm', 'p', '2', 'p' ):
661 p_media->psz_mux = "ps";
662 p_es->i_payload_type = p_media->i_payload_type++;
663 p_es->psz_ptname = "MP2P";
665 case VLC_CODEC_AMR_NB:
666 p_es->i_payload_type = p_media->i_payload_type++;
667 p_es->psz_ptname = "AMR";
668 p_es->i_clock_rate = 8000;
669 if(p_fmt->audio.i_channels == 2 )
670 p_es->i_channels = 2;
671 p_es->psz_fmtp = strdup( "octet-align=1" );
673 case VLC_CODEC_AMR_WB:
674 p_es->i_payload_type = p_media->i_payload_type++;
675 p_es->psz_ptname = "AMR-WB";
676 p_es->i_clock_rate = 16000;
677 if(p_fmt->audio.i_channels == 2 )
678 p_es->i_channels = 2;
679 p_es->psz_fmtp = strdup( "octet-align=1" );
683 msg_Err( p_vod, "cannot add this stream (unsupported "
684 "codec: %4.4s)", (char*)&p_fmt->i_codec );
691 httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
694 if( !p_es->p_rtsp_url )
696 msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
703 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
704 RtspCallbackES, (void*)p_es );
705 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
706 RtspCallbackES, (void*)p_es );
707 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
708 RtspCallbackES, (void*)p_es );
709 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
710 RtspCallbackES, (void*)p_es );
712 es_format_Copy( &p_es->fmt, p_fmt );
714 p_es->p_media = p_media;
716 vlc_mutex_lock( &p_media->lock );
717 TAB_APPEND( p_media->i_es, p_media->es, p_es );
718 vlc_mutex_unlock( &p_media->lock );
723 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
725 media_es_t *p_es = NULL;
728 for( int i = 0; i < p_media->i_es; i++ )
730 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
731 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
732 p_media->es[i]->fmt.i_id == p_fmt->i_id )
734 p_es = p_media->es[i];
739 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
741 vlc_mutex_lock( &p_media->lock );
742 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
743 vlc_mutex_unlock( &p_media->lock );
745 free( p_es->psz_fmtp );
747 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
748 es_format_Clean( &p_es->fmt );
752 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session,
753 double f_arg, const char *psz_arg )
758 memset( &cmd, 0, sizeof(cmd) );
760 cmd.p_media = p_media;
762 cmd.i_media_id = p_media->id;
764 cmd.psz_session = strdup(psz_session);
767 cmd.psz_arg = strdup(psz_arg);
769 p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
770 memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
772 block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
775 static void* CommandThread( vlc_object_t *p_this )
777 vod_t *p_vod = (vod_t*)p_this;
778 vod_sys_t *p_sys = p_vod->p_sys;
779 int canc = vlc_savecancel ();
781 while( vlc_object_alive (p_vod) )
783 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
785 vod_media_t *p_media = NULL;
791 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
792 block_Release( p_block_cmd );
794 if( cmd.i_type == RTSP_CMD_TYPE_NONE )
797 if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
799 TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
803 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
805 MediaDel(p_vod, cmd.p_media);
810 for( i = 0; i < p_sys->i_media; i++ )
812 if( p_sys->media[i]->id == cmd.i_media_id )
815 if( i >= p_sys->i_media )
819 p_media = p_sys->media[i];
823 case RTSP_CMD_TYPE_PLAY:
824 vod_MediaControl( p_vod, p_media, cmd.psz_session,
825 VOD_MEDIA_PLAY, cmd.psz_arg );
827 case RTSP_CMD_TYPE_PAUSE:
828 vod_MediaControl( p_vod, p_media, cmd.psz_session,
832 case RTSP_CMD_TYPE_STOP:
833 vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
836 case RTSP_CMD_TYPE_SEEK:
837 vod_MediaControl( p_vod, p_media, cmd.psz_session,
838 VOD_MEDIA_SEEK, cmd.f_arg );
841 case RTSP_CMD_TYPE_REWIND:
842 vod_MediaControl( p_vod, p_media, cmd.psz_session,
843 VOD_MEDIA_REWIND, cmd.f_arg );
846 case RTSP_CMD_TYPE_FORWARD:
847 vod_MediaControl( p_vod, p_media, cmd.psz_session,
848 VOD_MEDIA_FORWARD, cmd.f_arg );
856 free( cmd.psz_session );
860 vlc_restorecancel (canc);
864 /****************************************************************************
865 * RTSP server implementation
866 ****************************************************************************/
867 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
869 rtsp_client_t *p_rtsp = calloc( 1, sizeof(rtsp_client_t) );
875 p_rtsp->psz_session = psz_session;
876 TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
878 p_media->p_vod->p_sys->i_connections++;
879 msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
880 psz_session, p_media->p_vod->p_sys->i_throttle_users );
885 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
887 for( int i = 0; psz_session && i < p_media->i_rtsp; i++ )
889 if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
890 return p_media->rtsp[i];
896 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
898 p_media->p_vod->p_sys->i_connections--;
899 msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
900 p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
902 while( p_rtsp->i_es )
905 free( p_rtsp->es[p_rtsp->i_es] );
909 TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
911 free( p_rtsp->psz_session );
916 static float ParseNPT (const char *str)
918 locale_t loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
919 locale_t oldloc = uselocale (loc);
923 if (sscanf (str, "%u:%u:%f", &hour, &min, &sec) == 3)
924 sec += ((hour * 60) + min) * 60;
926 if (sscanf (str, "%f", &sec) != 1)
929 if (loc != (locale_t)0)
938 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
939 httpd_message_t *answer, const httpd_message_t *query )
941 vod_media_t *p_media = (vod_media_t*)p_args;
942 vod_t *p_vod = p_media->p_vod;
943 const char *psz_transport = NULL;
944 const char *psz_playnow = NULL; /* support option: x-playNow */
945 const char *psz_session = NULL;
946 const char *psz_cseq = NULL;
947 rtsp_client_t *p_rtsp;
951 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
953 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
955 answer->i_proto = HTTPD_PROTO_RTSP;
956 answer->i_version = query->i_version;
957 answer->i_type = HTTPD_MSG_ANSWER;
959 answer->p_body = NULL;
961 switch( query->i_type )
963 case HTTPD_MSG_SETUP:
965 psz_playnow = httpd_MsgGet( query, "x-playNow" );
966 psz_transport = httpd_MsgGet( query, "Transport" );
967 if( psz_transport == NULL )
969 answer->i_status = 400;
972 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
974 if( strstr( psz_transport, "unicast" ) &&
975 strstr( psz_transport, "client_port=" ) )
977 rtsp_client_t *p_rtsp = NULL;
978 char ip[NI_MAXNUMERICHOST];
979 i_port = atoi( strstr( psz_transport, "client_port=" ) +
980 strlen("client_port=") );
982 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
983 strstr( psz_transport, "RAW/RAW/UDP" ) )
985 p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
986 p_media->b_raw = true;
989 if( httpd_ClientIP( cl, ip ) == NULL )
991 answer->i_status = 500;
993 answer->p_body = NULL;
997 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1000 psz_session = httpd_MsgGet( query, "Session" );
1001 if( !psz_session || !*psz_session )
1004 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1005 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1007 answer->i_status = 503;
1009 answer->p_body = NULL;
1012 #warning Should use secure randomness here! (spoofing risk)
1013 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1015 psz_session = psz_new;
1017 p_rtsp = RtspClientNew( p_media, psz_new );
1020 answer->i_status = 454;
1022 answer->p_body = NULL;
1028 p_rtsp = RtspClientGet( p_media, psz_session );
1031 answer->i_status = 454;
1033 answer->p_body = NULL;
1038 answer->i_status = 200;
1040 answer->p_body = NULL;
1042 if( p_media->b_raw )
1044 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1046 httpd_MsgAdd( answer, "Transport",
1047 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1048 i_port, i_port + 1 );
1050 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1052 httpd_MsgAdd( answer, "Transport",
1053 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1054 i_port, i_port + 1 );
1058 httpd_MsgAdd( answer, "Transport",
1059 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1060 i_port, i_port + 1 );
1062 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1064 answer->i_status = 461;
1066 answer->p_body = NULL;
1069 /* Intentional fall-through on x-playNow option in RTSP request */
1074 case HTTPD_MSG_PLAY:
1076 char *psz_output, ip[NI_MAXNUMERICHOST];
1077 int i_port_audio = 0, i_port_video = 0;
1079 /* for now only multicast so easy */
1082 answer->i_status = 200;
1084 answer->p_body = NULL;
1088 psz_session = httpd_MsgGet( query, "Session" );
1089 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1091 p_rtsp = RtspClientGet( p_media, psz_session );
1094 answer->i_status = 500;
1096 answer->p_body = NULL;
1100 if( p_rtsp->b_playing )
1102 const char *psz_position = httpd_MsgGet( query, "Range" );
1103 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1105 psz_position = strstr( psz_position, "npt=" );
1106 if( psz_position && !psz_scale )
1108 double f_pos = ParseNPT (psz_position + 4);
1109 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1110 f_pos /= ((double)(p_media->i_length)) / CLOCK_FREQ / 100;
1111 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1112 psz_session, f_pos, NULL );
1114 else if( psz_scale )
1116 double f_scale = 0.0;
1119 f_scale = us_strtod( psz_scale, &end );
1120 if( end > psz_scale )
1122 f_scale = (f_scale * 30.0);
1123 if( psz_scale[0] == '-' ) /* rewind */
1125 msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1126 CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1127 psz_session, f_scale, NULL );
1129 else if(psz_scale[0] != '1' ) /* fast-forward */
1131 msg_Dbg( p_vod, "fastforward request: %s",
1133 CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1134 psz_session, f_scale, NULL );
1137 if( p_rtsp->b_paused )
1139 p_rtsp->b_paused = false;
1140 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1141 psz_session, 0, NULL );
1148 if( p_rtsp->b_playing && p_rtsp->b_paused )
1150 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media,
1151 psz_session, 0, NULL );
1152 p_rtsp->b_paused = false;
1155 else if( p_rtsp->b_playing ) break;
1157 if( httpd_ClientIP( cl, ip ) == NULL ) break;
1159 p_rtsp->b_playing = true;
1161 /* FIXME for != 1 video and 1 audio */
1162 for( int i = 0; i < p_rtsp->i_es; i++ )
1164 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1165 i_port_audio = p_rtsp->es[i]->i_port;
1166 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1167 i_port_video = p_rtsp->es[i]->i_port;
1170 if( p_media->psz_mux )
1172 if( p_media->b_raw )
1174 if( asprintf( &psz_output,
1175 "std{access=udp,dst=%s:%i,mux=%s}",
1176 ip, i_port, p_media->psz_mux ) < 0 )
1181 if( asprintf( &psz_output,
1182 "rtp{dst=%s,port=%i,mux=%s}",
1183 ip, i_port_video, p_media->psz_mux ) < 0 )
1189 if( asprintf( &psz_output,
1190 "rtp{dst=%s,port-video=%i,port-audio=%i}",
1191 ip, i_port_video, i_port_audio ) < 0 )
1195 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1201 case HTTPD_MSG_DESCRIBE:
1204 SDPGenerate( p_media, cl );
1206 if( psz_sdp != NULL )
1208 answer->i_status = 200;
1209 httpd_MsgAdd( answer, "Content-type", "%s",
1210 "application/sdp" );
1212 answer->p_body = (uint8_t *)psz_sdp;
1213 answer->i_body = strlen( psz_sdp );
1217 answer->i_status = 500;
1218 answer->p_body = NULL;
1224 case HTTPD_MSG_PAUSE:
1225 psz_session = httpd_MsgGet( query, "Session" );
1226 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1228 p_rtsp = RtspClientGet( p_media, psz_session );
1229 if( !p_rtsp ) break;
1231 if( !p_rtsp->b_paused )
1233 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1235 p_rtsp->b_paused = true;
1238 answer->i_status = 200;
1240 answer->p_body = NULL;
1243 case HTTPD_MSG_TEARDOWN:
1244 /* for now only multicast so easy again */
1245 answer->i_status = 200;
1247 answer->p_body = NULL;
1249 psz_session = httpd_MsgGet( query, "Session" );
1250 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1252 p_rtsp = RtspClientGet( p_media, psz_session );
1253 if( !p_rtsp ) break;
1255 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1257 RtspClientDel( p_media, p_rtsp );
1260 case HTTPD_MSG_GETPARAMETER:
1261 answer->i_status = 200;
1263 answer->p_body = NULL;
1267 return VLC_EGENERIC;
1270 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1271 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1272 psz_cseq = httpd_MsgGet( query, "Cseq" );
1273 psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1274 httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1275 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1279 if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1280 httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1281 p_media->p_vod->p_sys->i_session_timeout );
1283 httpd_MsgAdd( answer, "Session", "%s", psz_session );
1289 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1290 httpd_message_t *answer,
1291 const httpd_message_t *query )
1293 media_es_t *p_es = (media_es_t*)p_args;
1294 vod_media_t *p_media = p_es->p_media;
1295 vod_t *p_vod = p_media->p_vod;
1296 rtsp_client_t *p_rtsp = NULL;
1297 const char *psz_transport = NULL;
1298 const char *psz_playnow = NULL; /* support option: x-playNow */
1299 const char *psz_session = NULL;
1300 const char *psz_position = NULL;
1301 const char *psz_cseq = NULL;
1304 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1306 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1308 answer->i_proto = HTTPD_PROTO_RTSP;
1309 answer->i_version = query->i_version;
1310 answer->i_type = HTTPD_MSG_ANSWER;
1312 answer->p_body = NULL;
1314 switch( query->i_type )
1316 case HTTPD_MSG_SETUP:
1317 psz_playnow = httpd_MsgGet( query, "x-playNow" );
1318 psz_transport = httpd_MsgGet( query, "Transport" );
1320 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1322 if( strstr( psz_transport, "unicast" ) &&
1323 strstr( psz_transport, "client_port=" ) )
1325 rtsp_client_t *p_rtsp = NULL;
1326 rtsp_client_es_t *p_rtsp_es = NULL;
1327 char ip[NI_MAXNUMERICHOST];
1328 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1329 strlen("client_port=") );
1331 if( httpd_ClientIP( cl, ip ) == NULL )
1333 answer->i_status = 500;
1335 answer->p_body = NULL;
1339 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1342 psz_session = httpd_MsgGet( query, "Session" );
1343 if( !psz_session || !*psz_session )
1346 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1347 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1349 answer->i_status = 503;
1351 answer->p_body = NULL;
1354 #warning Session ID should be securely random (spoofing risk)
1355 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1357 psz_session = psz_new;
1359 p_rtsp = RtspClientNew( p_media, psz_new );
1362 answer->i_status = 454;
1364 answer->p_body = NULL;
1370 p_rtsp = RtspClientGet( p_media, psz_session );
1373 answer->i_status = 454;
1375 answer->p_body = NULL;
1380 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1383 answer->i_status = 500;
1385 answer->p_body = NULL;
1388 p_rtsp_es->i_port = i_port;
1389 p_rtsp_es->p_media_es = p_es;
1390 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1392 answer->i_status = 200;
1394 answer->p_body = NULL;
1396 if( p_media->b_raw )
1398 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1400 httpd_MsgAdd( answer, "Transport",
1401 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1402 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1404 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1406 httpd_MsgAdd( answer, "Transport",
1407 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1408 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1413 httpd_MsgAdd( answer, "Transport",
1414 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1415 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1418 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1420 answer->i_status = 461;
1422 answer->p_body = NULL;
1425 /* Intentional fall-through on x-playNow option in RTSP request */
1429 case HTTPD_MSG_PLAY:
1430 /* This is kind of a kludge. Should we only support Aggregate
1432 psz_session = httpd_MsgGet( query, "Session" );
1433 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1435 p_rtsp = RtspClientGet( p_media, psz_session );
1437 psz_position = httpd_MsgGet( query, "Range" );
1438 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1441 double f_pos = ParseNPT (psz_position + 4);
1442 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1443 f_pos /= ((double)(p_media->i_length)) / CLOCK_FREQ / 100;
1444 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1445 psz_session, f_pos, NULL );
1450 answer->i_status = 200;
1452 answer->p_body = NULL;
1456 case HTTPD_MSG_TEARDOWN:
1457 answer->i_status = 200;
1459 answer->p_body = NULL;
1461 psz_session = httpd_MsgGet( query, "Session" );
1462 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1464 p_rtsp = RtspClientGet( p_media, psz_session );
1465 if( !p_rtsp ) break;
1467 for( int i = 0; i < p_rtsp->i_es; i++ )
1469 if( p_rtsp->es[i]->p_media_es == p_es )
1471 TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1478 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1480 RtspClientDel( p_media, p_rtsp );
1484 case HTTPD_MSG_PAUSE:
1485 /* This is kind of a kludge. Should we only support Aggregate
1487 psz_session = httpd_MsgGet( query, "Session" );
1488 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1490 p_rtsp = RtspClientGet( p_media, psz_session );
1491 if( !p_rtsp ) break;
1493 if( !p_rtsp->b_paused )
1495 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1497 p_rtsp->b_paused = true;
1500 answer->i_status = 200;
1502 answer->p_body = NULL;
1506 return VLC_EGENERIC;
1510 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1511 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1512 psz_cseq = httpd_MsgGet( query, "Cseq" );
1514 i_cseq = atoi( psz_cseq );
1517 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1518 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1521 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1526 /*****************************************************************************
1528 * FIXME: need to be moved to a common place ?
1529 *****************************************************************************/
1530 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1532 char *psz_sdp, ip[NI_MAXNUMERICHOST];
1533 const char *psz_control;
1535 if( httpd_ServerIP( cl, ip ) == NULL )
1538 bool ipv6 = ( strchr( ip, ':' ) != NULL );
1540 psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1541 : p_media->psz_rtsp_control_v4;
1543 /* Dummy destination address for RTSP */
1544 struct sockaddr_storage dst;
1545 socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1546 : sizeof( struct sockaddr_in );
1547 memset (&dst, 0, dstlen);
1548 dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1550 dst.ss_len = dstlen;
1553 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1554 NULL, 0, (struct sockaddr *)&dst, dstlen );
1555 if( psz_sdp == NULL )
1558 if( p_media->i_length > 0 )
1560 lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1561 sdp_AddAttribute( &psz_sdp, "range"," npt=0-%lld.%03u", d.quot,
1565 for( int i = 0; i < p_media->i_es; i++ )
1567 media_es_t *p_es = p_media->es[i];
1568 const char *mime_major; /* major MIME type */
1570 switch( p_es->fmt.i_cat )
1573 mime_major = "video";
1576 mime_major = "audio";
1579 mime_major = "text";
1585 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1586 p_es->i_payload_type, false, 0,
1587 p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1590 sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, i );