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 THROTTLE_TEXT N_( "Maximum number of connections" )
62 #define THROTTLE_LONGTEXT N_( "This limits the maximum number of clients " \
63 "that can connect to the RTSP VOD. 0 means no limit." )
65 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
67 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
69 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
70 "to the RTSP session ID string. Setting it to a negative number removes " \
71 "the timeout option entirely. This is needed by some IPTV STBs (such as " \
72 "those made by HansunTech) which get confused by it. The default is 5." )
75 set_shortname( N_("RTSP VoD" ) )
76 set_description( N_("RTSP VoD server") )
77 set_category( CAT_SOUT )
78 set_subcategory( SUBCAT_SOUT_VOD )
79 set_capability( "vod server", 1 )
80 set_callbacks( Open, Close )
81 add_shortcut( "rtsp" )
82 add_string( "rtsp-raw-mux", "ts", RAWMUX_TEXT,
84 add_integer( "rtsp-throttle-users", 0, THROTTLE_TEXT,
85 THROTTLE_LONGTEXT, true )
86 add_integer( "rtsp-session-timeout", 5, SESSION_TIMEOUT_TEXT,
87 SESSION_TIMEOUT_LONGTEXT, true )
90 /*****************************************************************************
92 *****************************************************************************/
94 typedef struct media_es_t media_es_t;
98 media_es_t *p_media_es;
107 bool b_playing; /* is it in "play" state */
111 rtsp_client_es_t **es;
121 httpd_url_t *p_rtsp_url;
123 vod_media_t *p_media;
126 uint8_t i_payload_type;
127 const char *psz_ptname;
128 unsigned i_clock_rate;
142 httpd_url_t *p_rtsp_url;
143 char *psz_rtsp_control_v4;
144 char *psz_rtsp_control_v6;
157 rtsp_client_t **rtsp;
166 httpd_host_t *p_rtsp_host;
168 int i_throttle_users;
173 int i_session_timeout;
182 block_fifo_t *p_fifo_cmd;
185 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
188 RTSP_CMD_TYPE_NONE, /* Exit requested */
194 RTSP_CMD_TYPE_REWIND,
195 RTSP_CMD_TYPE_FORWARD,
206 vod_media_t *p_media;
213 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
214 static void MediaDel( vod_t *, vod_media_t * );
215 static void MediaAskDel ( vod_t *, vod_media_t * );
216 static int MediaAddES( vod_t *, vod_media_t *, es_format_t * );
217 static void MediaDelES( vod_t *, vod_media_t *, es_format_t * );
219 static void* CommandThread( void * );
220 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *,
221 const char *psz_session, int64_t i_arg,
222 double f_arg, const char *psz_arg );
224 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
225 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
226 static void RtspClientDel( vod_media_t *, rtsp_client_t * );
228 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
229 httpd_message_t *, const httpd_message_t * );
230 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
231 httpd_message_t *, const httpd_message_t * );
233 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
235 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
237 static const char hex[16] = "0123456789abcdef";
239 for( int i = 0; i < i_data; i++ )
241 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
242 s[2*i+1] = hex[(p_data[i] )&0xf];
247 /*****************************************************************************
248 * Open: Starts the RTSP server module
249 *****************************************************************************/
250 static int Open( vlc_object_t *p_this )
252 vod_t *p_vod = (vod_t *)p_this;
253 vod_sys_t *p_sys = NULL;
254 char *psz_url = NULL;
257 psz_url = var_InheritString( p_vod, "rtsp-host" );
258 vlc_UrlParse( &url, psz_url, 0 );
261 p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
262 if( !p_sys ) goto error;
263 p_sys->p_rtsp_host = 0;
265 p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
267 p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
268 msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
269 p_sys->i_connections = 0;
271 p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
273 var_Create( p_vod, "rtsp-host", VLC_VAR_STRING );
274 var_SetString( p_vod, "rtsp-host", url.psz_host );
276 if( url.i_port <= 0 ) url.i_port = 554;
277 var_Create( p_vod, "rtsp-port", VLC_VAR_INTEGER );
278 var_SetInteger( p_vod, "rtsp-port", url.i_port );
280 p_sys->p_rtsp_host = vlc_rtsp_HostNew( VLC_OBJECT(p_vod) );
281 if( !p_sys->p_rtsp_host )
283 msg_Err( p_vod, "cannot create RTSP server" );
287 p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
289 vlc_UrlClean( &url );
291 TAB_INIT( p_sys->i_media, p_sys->media );
292 p_sys->i_media_id = 0;
294 p_vod->pf_media_new = MediaNew;
295 p_vod->pf_media_del = MediaAskDel;
297 p_sys->p_fifo_cmd = block_FifoNew();
298 if( vlc_clone( &p_sys->thread, CommandThread, p_vod, VLC_THREAD_PRIORITY_LOW ) )
300 msg_Err( p_vod, "cannot spawn rtsp vod thread" );
301 block_FifoRelease( p_sys->p_fifo_cmd );
302 free( p_sys->psz_path );
311 if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
312 free( p_sys->psz_raw_mux );
315 vlc_UrlClean( &url );
320 /*****************************************************************************
322 *****************************************************************************/
323 static void Close( vlc_object_t * p_this )
325 vod_t *p_vod = (vod_t *)p_this;
326 vod_sys_t *p_sys = p_vod->p_sys;
328 /* Stop command thread */
329 CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0, 0.0, NULL );
330 vlc_join( p_sys->thread, NULL );
332 while( block_FifoCount( p_sys->p_fifo_cmd ) > 0 )
335 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
336 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
337 block_Release( p_block_cmd );
338 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
339 MediaDel(p_vod, cmd.p_media);
340 free( cmd.psz_session );
343 block_FifoRelease( p_sys->p_fifo_cmd );
345 httpd_HostDelete( p_sys->p_rtsp_host );
346 var_Destroy( p_this, "rtsp-session-timeout" );
347 var_Destroy( p_this, "rtsp-throttle-users" );
348 var_Destroy( p_this, "rtsp-raw-mux" );
350 /* Check VLM is not buggy */
351 if( p_sys->i_media > 0 )
352 msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
353 TAB_CLEAN( p_sys->i_media, p_sys->media );
355 free( p_sys->psz_path );
356 free( p_sys->psz_raw_mux );
360 /*****************************************************************************
362 *****************************************************************************/
363 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
364 input_item_t *p_item )
366 vod_sys_t *p_sys = p_vod->p_sys;
368 vod_media_t *p_media = calloc( 1, sizeof(vod_media_t) );
372 p_media->id = p_sys->i_media_id++;
373 TAB_INIT( p_media->i_es, p_media->es );
374 p_media->psz_mux = NULL;
375 TAB_INIT( p_media->i_rtsp, p_media->rtsp );
376 p_media->b_raw = false;
378 if( asprintf( &p_media->psz_rtsp_path, "%s%s",
379 p_sys->psz_path, psz_name ) <0 )
381 p_media->p_rtsp_url =
382 httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
385 if( !p_media->p_rtsp_url )
387 msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
388 free( p_media->psz_rtsp_path );
393 msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
395 if( asprintf( &p_media->psz_rtsp_control_v4,
396 "rtsp://%%s:%%d%s/trackID=%%d",
397 p_media->psz_rtsp_path ) < 0 )
399 httpd_UrlDelete( p_media->p_rtsp_url );
400 free( p_media->psz_rtsp_path );
404 if( asprintf( &p_media->psz_rtsp_control_v6,
405 "rtsp://[%%s]:%%d%s/trackID=%%d",
406 p_media->psz_rtsp_path ) < 0 )
408 httpd_UrlDelete( p_media->p_rtsp_url );
409 free( p_media->psz_rtsp_path );
414 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
415 RtspCallback, (void*)p_media );
416 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
417 RtspCallback, (void*)p_media );
418 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
419 RtspCallback, (void*)p_media );
420 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
421 RtspCallback, (void*)p_media );
422 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
423 RtspCallback, (void*)p_media );
424 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
425 RtspCallback, (void*)p_media );
427 p_media->p_vod = p_vod;
429 vlc_mutex_init( &p_media->lock );
431 p_media->i_length = input_item_GetDuration( p_item );
433 vlc_mutex_lock( &p_item->lock );
434 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
435 for( int i = 0; i < p_item->i_es; i++ )
437 MediaAddES( p_vod, p_media, p_item->es[i] );
439 vlc_mutex_unlock( &p_item->lock );
441 CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0, 0.0, NULL );
445 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
447 CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0, 0.0, NULL );
450 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
452 vod_sys_t *p_sys = p_vod->p_sys;
454 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
456 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
458 httpd_UrlDelete( p_media->p_rtsp_url );
460 while( p_media->i_rtsp > 0 )
461 RtspClientDel( p_media, p_media->rtsp[0] );
462 TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
464 free( p_media->psz_rtsp_path );
465 free( p_media->psz_rtsp_control_v6 );
466 free( p_media->psz_rtsp_control_v4 );
468 while( p_media->i_es )
469 MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
470 TAB_CLEAN( p_media->i_es, p_media->es );
472 vlc_mutex_destroy( &p_media->lock );
477 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
481 media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
485 p_media->psz_mux = NULL;
487 /* TODO: update SDP, etc... */
488 if( asprintf( &psz_urlc, "%s/trackID=%d",
489 p_media->psz_rtsp_path, p_media->i_es ) < 0 )
494 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
496 /* Dynamic payload. No conflict since we put each ES in its own
498 p_es->i_payload_type = 96;
499 p_es->i_clock_rate = 90000;
500 p_es->i_channels = 1;
502 switch( p_fmt->i_codec )
505 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
507 p_es->i_payload_type = 11;
509 else if( p_fmt->audio.i_channels == 2 &&
510 p_fmt->audio.i_rate == 44100 )
512 p_es->i_payload_type = 10;
514 p_es->psz_ptname = "L16";
515 p_es->i_clock_rate = p_fmt->audio.i_rate;
516 p_es->i_channels = p_fmt->audio.i_channels;
519 p_es->psz_ptname = "L8";
520 p_es->i_clock_rate = p_fmt->audio.i_rate;
521 p_es->i_channels = p_fmt->audio.i_channels;
524 p_es->i_payload_type = 14;
525 p_es->psz_ptname = "MPA";
528 p_es->i_payload_type = 32;
529 p_es->psz_ptname = "MPV";
532 p_es->psz_ptname = "ac3";
533 p_es->i_clock_rate = p_fmt->audio.i_rate;
536 p_es->psz_ptname = "H263-1998";
539 p_es->psz_ptname = "H264";
540 p_es->psz_fmtp = NULL;
541 /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
542 if( p_fmt->i_extra > 0 )
544 uint8_t *p_buffer = p_fmt->p_extra;
545 int i_buffer = p_fmt->i_extra;
546 char *p_64_sps = NULL;
547 char *p_64_pps = NULL;
550 while( i_buffer > 4 )
555 while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
560 if( i_buffer == 0 ) break;
563 if( i_buffer < 4 || memcmp(p_buffer, "\x00\x00\x01", 3 ) )
565 /* No startcode found.. */
571 const int i_nal_type = p_buffer[0]&0x1f;
574 for( i_offset = 0; i_offset+2 < i_buffer ; i_offset++)
576 if( !memcmp(p_buffer + i_offset, "\x00\x00\x01", 3 ) )
578 /* we found another startcode */
579 while( i_offset > 0 && 0 == p_buffer[ i_offset - 1 ] )
588 /* No-info found in nal */
592 if( i_nal_type == 7 )
595 p_64_sps = vlc_b64_encode_binary( p_buffer, i_size );
596 /* XXX: nothing ensures that i_size >= 4 ?? */
597 sprintf_hexa( hexa, &p_buffer[1], 3 );
599 else if( i_nal_type == 8 )
602 p_64_pps = vlc_b64_encode_binary( p_buffer, i_size );
608 if( p_64_sps && p_64_pps )
610 if( asprintf( &p_es->psz_fmtp,
611 "packetization-mode=1;profile-level-id=%s;"
612 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
625 if( !p_es->psz_fmtp )
626 p_es->psz_fmtp = strdup( "packetization-mode=1" );
629 p_es->psz_ptname = "MP4V-ES";
630 if( p_fmt->i_extra > 0 )
632 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
633 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
634 if( asprintf( &p_es->psz_fmtp,
635 "profile-level-id=3; config=%s;", p_hexa ) == -1 )
636 p_es->psz_fmtp = NULL;
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->psz_ptname = "MP2P";
664 case VLC_CODEC_AMR_NB:
665 p_es->psz_ptname = "AMR";
666 p_es->i_clock_rate = 8000;
667 if(p_fmt->audio.i_channels == 2 )
668 p_es->i_channels = 2;
669 p_es->psz_fmtp = strdup( "octet-align=1" );
671 case VLC_CODEC_AMR_WB:
672 p_es->psz_ptname = "AMR-WB";
673 p_es->i_clock_rate = 16000;
674 if(p_fmt->audio.i_channels == 2 )
675 p_es->i_channels = 2;
676 p_es->psz_fmtp = strdup( "octet-align=1" );
680 msg_Err( p_vod, "cannot add this stream (unsupported "
681 "codec: %4.4s)", (char*)&p_fmt->i_codec );
688 httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
691 if( !p_es->p_rtsp_url )
693 msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
700 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
701 RtspCallbackES, (void*)p_es );
702 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
703 RtspCallbackES, (void*)p_es );
704 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
705 RtspCallbackES, (void*)p_es );
706 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
707 RtspCallbackES, (void*)p_es );
709 es_format_Copy( &p_es->fmt, p_fmt );
711 p_es->p_media = p_media;
713 vlc_mutex_lock( &p_media->lock );
714 TAB_APPEND( p_media->i_es, p_media->es, p_es );
715 vlc_mutex_unlock( &p_media->lock );
720 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
722 media_es_t *p_es = NULL;
725 for( int i = 0; i < p_media->i_es; i++ )
727 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
728 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
729 p_media->es[i]->fmt.i_id == p_fmt->i_id )
731 p_es = p_media->es[i];
736 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
738 vlc_mutex_lock( &p_media->lock );
739 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
740 vlc_mutex_unlock( &p_media->lock );
742 free( p_es->psz_fmtp );
744 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
745 es_format_Clean( &p_es->fmt );
749 static void CommandPush( vod_t *p_vod, rtsp_cmd_type_t i_type, vod_media_t *p_media, const char *psz_session, int64_t i_arg,
750 double f_arg, const char *psz_arg )
755 memset( &cmd, 0, sizeof(cmd) );
757 cmd.p_media = p_media;
759 cmd.i_media_id = p_media->id;
761 cmd.psz_session = strdup(psz_session);
765 cmd.psz_arg = strdup(psz_arg);
767 p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
768 memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
770 block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
773 static void* CommandThread( void *obj )
775 vod_t *p_vod = (vod_t*)obj;
776 vod_sys_t *p_sys = p_vod->p_sys;
777 int canc = vlc_savecancel ();
781 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
783 vod_media_t *p_media = NULL;
789 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
790 block_Release( p_block_cmd );
792 if( cmd.i_type == RTSP_CMD_TYPE_NONE )
795 if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
797 TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
801 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
803 MediaDel(p_vod, cmd.p_media);
808 for( i = 0; i < p_sys->i_media; i++ )
810 if( p_sys->media[i]->id == cmd.i_media_id )
813 if( i >= p_sys->i_media )
817 p_media = p_sys->media[i];
821 case RTSP_CMD_TYPE_PLAY:
823 vod_MediaControl( p_vod, p_media, cmd.psz_session,
824 VOD_MEDIA_PLAY, cmd.psz_arg, &cmd.i_arg );
826 case RTSP_CMD_TYPE_PAUSE:
828 vod_MediaControl( p_vod, p_media, cmd.psz_session,
829 VOD_MEDIA_PAUSE, &cmd.i_arg );
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.i_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 int64_t 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)
934 return sec * CLOCK_FREQ;
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;
950 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
952 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
954 answer->i_proto = HTTPD_PROTO_RTSP;
955 answer->i_version = query->i_version;
956 answer->i_type = HTTPD_MSG_ANSWER;
958 answer->p_body = NULL;
960 switch( query->i_type )
962 case HTTPD_MSG_SETUP:
964 psz_playnow = httpd_MsgGet( query, "x-playNow" );
965 psz_transport = httpd_MsgGet( query, "Transport" );
966 if( psz_transport == NULL )
968 answer->i_status = 400;
971 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
973 if( strstr( psz_transport, "unicast" ) &&
974 strstr( psz_transport, "client_port=" ) )
976 rtsp_client_t *p_rtsp = NULL;
977 char ip[NI_MAXNUMERICHOST];
978 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
979 strlen("client_port=") );
981 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
982 strstr( psz_transport, "RAW/RAW/UDP" ) )
984 p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
985 p_media->b_raw = true;
988 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
990 answer->i_status = 500;
992 answer->p_body = NULL;
996 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
999 psz_session = httpd_MsgGet( query, "Session" );
1000 if( !psz_session || !*psz_session )
1003 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1004 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1006 answer->i_status = 503;
1008 answer->p_body = NULL;
1011 #warning Should use secure randomness here! (spoofing risk)
1012 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1014 psz_session = psz_new;
1016 p_rtsp = RtspClientNew( p_media, psz_new );
1019 answer->i_status = 454;
1021 answer->p_body = NULL;
1027 p_rtsp = RtspClientGet( p_media, psz_session );
1030 answer->i_status = 454;
1032 answer->p_body = NULL;
1037 answer->i_status = 200;
1039 answer->p_body = NULL;
1041 if( p_media->b_raw )
1043 p_rtsp->i_port_raw = i_port;
1045 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1047 httpd_MsgAdd( answer, "Transport",
1048 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1049 i_port, i_port + 1 );
1051 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1053 httpd_MsgAdd( answer, "Transport",
1054 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1055 i_port, i_port + 1 );
1059 httpd_MsgAdd( answer, "Transport",
1060 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1061 i_port, i_port + 1 );
1063 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1065 answer->i_status = 461;
1067 answer->p_body = NULL;
1070 /* Intentional fall-through on x-playNow option in RTSP request */
1075 case HTTPD_MSG_PLAY:
1077 char *psz_output, ip[NI_MAXNUMERICHOST];
1078 int i_port_audio = 0, i_port_video = 0;
1080 /* for now only multicast so easy */
1083 answer->i_status = 200;
1085 answer->p_body = NULL;
1089 psz_session = httpd_MsgGet( query, "Session" );
1090 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1092 p_rtsp = RtspClientGet( p_media, psz_session );
1095 answer->i_status = 500;
1097 answer->p_body = NULL;
1101 if( p_rtsp->b_playing )
1103 const char *psz_position = httpd_MsgGet( query, "Range" );
1104 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1106 psz_position = strstr( psz_position, "npt=" );
1107 if( psz_position && !psz_scale )
1109 int64_t i_time = ParseNPT (psz_position + 4);
1110 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1111 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1112 psz_session, i_time, 0.0, 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, 0, 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, 0, f_scale, NULL );
1138 /* unpause, in case it's paused */
1139 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1144 if( httpd_ClientIP( cl, ip, NULL ) == NULL ) break;
1146 p_rtsp->b_playing = true;
1148 /* FIXME for != 1 video and 1 audio */
1149 for( int i = 0; i < p_rtsp->i_es; i++ )
1151 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1152 i_port_audio = p_rtsp->es[i]->i_port;
1153 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1154 i_port_video = p_rtsp->es[i]->i_port;
1157 if( p_media->psz_mux )
1159 if( p_media->b_raw )
1161 if( asprintf( &psz_output,
1162 "std{access=udp,dst=%s:%i,mux=%s}",
1163 ip, p_rtsp->i_port_raw, p_media->psz_mux ) < 0 )
1168 if( asprintf( &psz_output,
1169 "rtp{dst=%s,port=%i,mux=%s}",
1170 ip, i_port_video, p_media->psz_mux ) < 0 )
1176 if( asprintf( &psz_output,
1177 "rtp{dst=%s,port-video=%i,port-audio=%i}",
1178 ip, i_port_video, i_port_audio ) < 0 )
1182 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1183 0, 0.0, psz_output );
1188 case HTTPD_MSG_DESCRIBE:
1191 SDPGenerate( p_media, cl );
1193 if( psz_sdp != NULL )
1195 answer->i_status = 200;
1196 httpd_MsgAdd( answer, "Content-type", "%s",
1197 "application/sdp" );
1199 answer->p_body = (uint8_t *)psz_sdp;
1200 answer->i_body = strlen( psz_sdp );
1204 answer->i_status = 500;
1205 answer->p_body = NULL;
1211 case HTTPD_MSG_PAUSE:
1212 psz_session = httpd_MsgGet( query, "Session" );
1213 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1215 p_rtsp = RtspClientGet( p_media, psz_session );
1216 if( !p_rtsp ) break;
1218 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1221 answer->i_status = 200;
1223 answer->p_body = NULL;
1226 case HTTPD_MSG_TEARDOWN:
1227 /* for now only multicast so easy again */
1228 answer->i_status = 200;
1230 answer->p_body = NULL;
1232 psz_session = httpd_MsgGet( query, "Session" );
1233 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1235 p_rtsp = RtspClientGet( p_media, psz_session );
1236 if( !p_rtsp ) break;
1238 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1240 RtspClientDel( p_media, p_rtsp );
1243 case HTTPD_MSG_GETPARAMETER:
1244 answer->i_status = 200;
1246 answer->p_body = NULL;
1250 return VLC_EGENERIC;
1253 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1254 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1255 psz_cseq = httpd_MsgGet( query, "Cseq" );
1256 psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1257 httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1258 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1262 if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1263 httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1264 p_media->p_vod->p_sys->i_session_timeout );
1266 httpd_MsgAdd( answer, "Session", "%s", psz_session );
1272 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1273 httpd_message_t *answer,
1274 const httpd_message_t *query )
1276 media_es_t *p_es = (media_es_t*)p_args;
1277 vod_media_t *p_media = p_es->p_media;
1278 vod_t *p_vod = p_media->p_vod;
1279 rtsp_client_t *p_rtsp = NULL;
1280 const char *psz_transport = NULL;
1281 const char *psz_playnow = NULL; /* support option: x-playNow */
1282 const char *psz_session = NULL;
1283 const char *psz_position = NULL;
1284 const char *psz_cseq = NULL;
1287 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1289 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1291 answer->i_proto = HTTPD_PROTO_RTSP;
1292 answer->i_version = query->i_version;
1293 answer->i_type = HTTPD_MSG_ANSWER;
1295 answer->p_body = NULL;
1297 switch( query->i_type )
1299 case HTTPD_MSG_SETUP:
1300 psz_playnow = httpd_MsgGet( query, "x-playNow" );
1301 psz_transport = httpd_MsgGet( query, "Transport" );
1303 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1305 if( strstr( psz_transport, "unicast" ) &&
1306 strstr( psz_transport, "client_port=" ) )
1308 rtsp_client_t *p_rtsp = NULL;
1309 rtsp_client_es_t *p_rtsp_es = NULL;
1310 char ip[NI_MAXNUMERICHOST];
1311 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1312 strlen("client_port=") );
1314 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
1316 answer->i_status = 500;
1318 answer->p_body = NULL;
1322 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1325 psz_session = httpd_MsgGet( query, "Session" );
1326 if( !psz_session || !*psz_session )
1329 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1330 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1332 answer->i_status = 503;
1334 answer->p_body = NULL;
1337 #warning Session ID should be securely random (spoofing risk)
1338 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1340 psz_session = psz_new;
1342 p_rtsp = RtspClientNew( p_media, psz_new );
1345 answer->i_status = 454;
1347 answer->p_body = NULL;
1353 p_rtsp = RtspClientGet( p_media, psz_session );
1356 answer->i_status = 454;
1358 answer->p_body = NULL;
1363 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1366 answer->i_status = 500;
1368 answer->p_body = NULL;
1371 p_rtsp_es->i_port = i_port;
1372 p_rtsp_es->p_media_es = p_es;
1373 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1375 answer->i_status = 200;
1377 answer->p_body = NULL;
1379 if( p_media->b_raw )
1381 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1383 httpd_MsgAdd( answer, "Transport",
1384 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1385 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1387 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1389 httpd_MsgAdd( answer, "Transport",
1390 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1391 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1396 httpd_MsgAdd( answer, "Transport",
1397 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1398 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1401 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1403 answer->i_status = 461;
1405 answer->p_body = NULL;
1408 /* Intentional fall-through on x-playNow option in RTSP request */
1412 case HTTPD_MSG_PLAY:
1413 /* This is kind of a kludge. Should we only support Aggregate
1415 psz_session = httpd_MsgGet( query, "Session" );
1416 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1418 p_rtsp = RtspClientGet( p_media, psz_session );
1420 psz_position = httpd_MsgGet( query, "Range" );
1421 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1424 int64_t i_time = ParseNPT (psz_position + 4);
1425 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1426 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1427 psz_session, i_time, 0.0, NULL );
1432 answer->i_status = 200;
1434 answer->p_body = NULL;
1438 case HTTPD_MSG_TEARDOWN:
1439 answer->i_status = 200;
1441 answer->p_body = NULL;
1443 psz_session = httpd_MsgGet( query, "Session" );
1444 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1446 p_rtsp = RtspClientGet( p_media, psz_session );
1447 if( !p_rtsp ) break;
1449 for( int i = 0; i < p_rtsp->i_es; i++ )
1451 if( p_rtsp->es[i]->p_media_es == p_es )
1453 TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1460 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1462 RtspClientDel( p_media, p_rtsp );
1466 case HTTPD_MSG_PAUSE:
1467 /* This is kind of a kludge. Should we only support Aggregate
1469 psz_session = httpd_MsgGet( query, "Session" );
1470 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1472 p_rtsp = RtspClientGet( p_media, psz_session );
1473 if( !p_rtsp ) break;
1475 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1478 answer->i_status = 200;
1480 answer->p_body = NULL;
1484 return VLC_EGENERIC;
1488 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1489 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1490 psz_cseq = httpd_MsgGet( query, "Cseq" );
1492 i_cseq = atoi( psz_cseq );
1495 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1496 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1499 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1504 /*****************************************************************************
1506 * FIXME: need to be moved to a common place ?
1507 *****************************************************************************/
1508 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1510 char *psz_sdp, ip[NI_MAXNUMERICHOST];
1511 const char *psz_control;
1514 if( httpd_ServerIP( cl, ip, &port ) == NULL )
1517 bool ipv6 = ( strchr( ip, ':' ) != NULL );
1519 psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1520 : p_media->psz_rtsp_control_v4;
1522 /* Dummy destination address for RTSP */
1523 struct sockaddr_storage dst;
1524 socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1525 : sizeof( struct sockaddr_in );
1526 memset (&dst, 0, dstlen);
1527 dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1529 dst.ss_len = dstlen;
1532 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1533 NULL, 0, (struct sockaddr *)&dst, dstlen );
1534 if( psz_sdp == NULL )
1537 if( p_media->i_length > 0 )
1539 lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1540 sdp_AddAttribute( &psz_sdp, "range","npt=0-%lld.%03u", d.quot,
1544 for( int i = 0; i < p_media->i_es; i++ )
1546 media_es_t *p_es = p_media->es[i];
1547 const char *mime_major; /* major MIME type */
1549 switch( p_es->fmt.i_cat )
1552 mime_major = "video";
1555 mime_major = "audio";
1558 mime_major = "text";
1564 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1565 p_es->i_payload_type, false, 0,
1566 p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1569 sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, port, i );