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_("Legacy 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 p_sys->p_rtsp_host = vlc_rtsp_HostNew( VLC_OBJECT(p_vod) );
274 if( !p_sys->p_rtsp_host )
276 msg_Err( p_vod, "cannot create RTSP server" );
280 p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
282 TAB_INIT( p_sys->i_media, p_sys->media );
283 p_sys->i_media_id = 0;
285 p_vod->pf_media_new = MediaNew;
286 p_vod->pf_media_del = MediaAskDel;
288 p_sys->p_fifo_cmd = block_FifoNew();
289 if( vlc_clone( &p_sys->thread, CommandThread, p_vod, VLC_THREAD_PRIORITY_LOW ) )
291 msg_Err( p_vod, "cannot spawn rtsp vod thread" );
292 block_FifoRelease( p_sys->p_fifo_cmd );
293 free( p_sys->psz_path );
297 vlc_UrlClean( &url );
303 if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
304 free( p_sys->psz_raw_mux );
307 vlc_UrlClean( &url );
312 /*****************************************************************************
314 *****************************************************************************/
315 static void Close( vlc_object_t * p_this )
317 vod_t *p_vod = (vod_t *)p_this;
318 vod_sys_t *p_sys = p_vod->p_sys;
320 /* Stop command thread */
321 CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0, 0.0, NULL );
322 vlc_join( p_sys->thread, NULL );
324 while( block_FifoCount( p_sys->p_fifo_cmd ) > 0 )
327 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
328 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
329 block_Release( p_block_cmd );
330 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
331 MediaDel(p_vod, cmd.p_media);
332 free( cmd.psz_session );
335 block_FifoRelease( p_sys->p_fifo_cmd );
337 httpd_HostDelete( p_sys->p_rtsp_host );
338 var_Destroy( p_this, "rtsp-session-timeout" );
339 var_Destroy( p_this, "rtsp-throttle-users" );
340 var_Destroy( p_this, "rtsp-raw-mux" );
342 /* Check VLM is not buggy */
343 if( p_sys->i_media > 0 )
344 msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
345 TAB_CLEAN( p_sys->i_media, p_sys->media );
347 free( p_sys->psz_path );
348 free( p_sys->psz_raw_mux );
352 /*****************************************************************************
354 *****************************************************************************/
355 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
356 input_item_t *p_item )
358 vod_sys_t *p_sys = p_vod->p_sys;
360 vod_media_t *p_media = calloc( 1, sizeof(vod_media_t) );
364 p_media->id = p_sys->i_media_id++;
365 TAB_INIT( p_media->i_es, p_media->es );
366 p_media->psz_mux = NULL;
367 TAB_INIT( p_media->i_rtsp, p_media->rtsp );
368 p_media->b_raw = false;
370 if( asprintf( &p_media->psz_rtsp_path, "%s%s",
371 p_sys->psz_path, psz_name ) <0 )
373 p_media->p_rtsp_url =
374 httpd_UrlNew( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL, NULL );
376 if( !p_media->p_rtsp_url )
378 msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
379 free( p_media->psz_rtsp_path );
384 msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
386 if( asprintf( &p_media->psz_rtsp_control_v4,
387 "rtsp://%%s:%%d%s/trackID=%%d",
388 p_media->psz_rtsp_path ) < 0 )
390 httpd_UrlDelete( p_media->p_rtsp_url );
391 free( p_media->psz_rtsp_path );
395 if( asprintf( &p_media->psz_rtsp_control_v6,
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 );
405 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
406 RtspCallback, (void*)p_media );
407 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
408 RtspCallback, (void*)p_media );
409 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
410 RtspCallback, (void*)p_media );
411 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
412 RtspCallback, (void*)p_media );
413 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
414 RtspCallback, (void*)p_media );
415 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
416 RtspCallback, (void*)p_media );
418 p_media->p_vod = p_vod;
420 vlc_mutex_init( &p_media->lock );
422 p_media->i_length = input_item_GetDuration( p_item );
424 vlc_mutex_lock( &p_item->lock );
425 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
426 for( int i = 0; i < p_item->i_es; i++ )
428 MediaAddES( p_vod, p_media, p_item->es[i] );
430 vlc_mutex_unlock( &p_item->lock );
432 CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0, 0.0, NULL );
436 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
438 CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0, 0.0, NULL );
441 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
443 vod_sys_t *p_sys = p_vod->p_sys;
445 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
447 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
449 httpd_UrlDelete( p_media->p_rtsp_url );
451 while( p_media->i_rtsp > 0 )
452 RtspClientDel( p_media, p_media->rtsp[0] );
453 TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
455 free( p_media->psz_rtsp_path );
456 free( p_media->psz_rtsp_control_v6 );
457 free( p_media->psz_rtsp_control_v4 );
459 while( p_media->i_es )
460 MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
461 TAB_CLEAN( p_media->i_es, p_media->es );
463 vlc_mutex_destroy( &p_media->lock );
468 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
472 media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
476 p_media->psz_mux = NULL;
478 /* TODO: update SDP, etc... */
479 if( asprintf( &psz_urlc, "%s/trackID=%d",
480 p_media->psz_rtsp_path, p_media->i_es ) < 0 )
485 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
487 /* Dynamic payload. No conflict since we put each ES in its own
489 p_es->i_payload_type = 96;
490 p_es->i_clock_rate = 90000;
491 p_es->i_channels = 1;
493 switch( p_fmt->i_codec )
496 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
498 p_es->i_payload_type = 11;
500 else if( p_fmt->audio.i_channels == 2 &&
501 p_fmt->audio.i_rate == 44100 )
503 p_es->i_payload_type = 10;
505 p_es->psz_ptname = "L16";
506 p_es->i_clock_rate = p_fmt->audio.i_rate;
507 p_es->i_channels = p_fmt->audio.i_channels;
510 p_es->psz_ptname = "L8";
511 p_es->i_clock_rate = p_fmt->audio.i_rate;
512 p_es->i_channels = p_fmt->audio.i_channels;
515 p_es->i_payload_type = 14;
516 p_es->psz_ptname = "MPA";
519 p_es->i_payload_type = 32;
520 p_es->psz_ptname = "MPV";
523 p_es->psz_ptname = "ac3";
524 p_es->i_clock_rate = p_fmt->audio.i_rate;
527 p_es->psz_ptname = "H263-1998";
530 p_es->psz_ptname = "H264";
531 p_es->psz_fmtp = NULL;
532 /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
533 if( p_fmt->i_extra > 0 )
535 uint8_t *p_buffer = p_fmt->p_extra;
536 int i_buffer = p_fmt->i_extra;
537 char *p_64_sps = NULL;
538 char *p_64_pps = NULL;
541 while( i_buffer > 4 )
546 while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
551 if( i_buffer == 0 ) break;
554 if( i_buffer < 4 || memcmp(p_buffer, "\x00\x00\x01", 3 ) )
556 /* No startcode found.. */
562 const int i_nal_type = p_buffer[0]&0x1f;
565 for( i_offset = 0; i_offset+2 < i_buffer ; i_offset++)
567 if( !memcmp(p_buffer + i_offset, "\x00\x00\x01", 3 ) )
569 /* we found another startcode */
570 while( i_offset > 0 && 0 == p_buffer[ i_offset - 1 ] )
579 /* No-info found in nal */
583 if( i_nal_type == 7 )
586 p_64_sps = vlc_b64_encode_binary( p_buffer, i_size );
587 /* XXX: nothing ensures that i_size >= 4 ?? */
588 sprintf_hexa( hexa, &p_buffer[1], 3 );
590 else if( i_nal_type == 8 )
593 p_64_pps = vlc_b64_encode_binary( p_buffer, i_size );
599 if( p_64_sps && p_64_pps )
601 if( asprintf( &p_es->psz_fmtp,
602 "packetization-mode=1;profile-level-id=%s;"
603 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
616 if( !p_es->psz_fmtp )
617 p_es->psz_fmtp = strdup( "packetization-mode=1" );
620 p_es->psz_ptname = "MP4V-ES";
621 if( p_fmt->i_extra > 0 )
623 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
624 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
625 if( asprintf( &p_es->psz_fmtp,
626 "profile-level-id=3; config=%s;", p_hexa ) == -1 )
627 p_es->psz_fmtp = NULL;
632 p_es->psz_ptname = "mpeg4-generic";
633 p_es->i_clock_rate = p_fmt->audio.i_rate;
634 if( p_fmt->i_extra > 0 )
636 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
637 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
638 if( asprintf( &p_es->psz_fmtp,
639 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
640 "config=%s; SizeLength=13;IndexLength=3; "
641 "IndexDeltaLength=3; Profile=1;", p_hexa ) == -1 )
642 p_es->psz_fmtp = NULL;
646 case VLC_FOURCC( 'm', 'p', '2', 't' ):
647 p_media->psz_mux = "ts";
648 p_es->i_payload_type = 33;
649 p_es->psz_ptname = "MP2T";
651 case VLC_FOURCC( 'm', 'p', '2', 'p' ):
652 p_media->psz_mux = "ps";
653 p_es->psz_ptname = "MP2P";
655 case VLC_CODEC_AMR_NB:
656 p_es->psz_ptname = "AMR";
657 p_es->i_clock_rate = 8000;
658 if(p_fmt->audio.i_channels == 2 )
659 p_es->i_channels = 2;
660 p_es->psz_fmtp = strdup( "octet-align=1" );
662 case VLC_CODEC_AMR_WB:
663 p_es->psz_ptname = "AMR-WB";
664 p_es->i_clock_rate = 16000;
665 if(p_fmt->audio.i_channels == 2 )
666 p_es->i_channels = 2;
667 p_es->psz_fmtp = strdup( "octet-align=1" );
671 msg_Err( p_vod, "cannot add this stream (unsupported "
672 "codec: %4.4s)", (char*)&p_fmt->i_codec );
679 httpd_UrlNew( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL );
681 if( !p_es->p_rtsp_url )
683 msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
690 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
691 RtspCallbackES, (void*)p_es );
692 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
693 RtspCallbackES, (void*)p_es );
694 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
695 RtspCallbackES, (void*)p_es );
696 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
697 RtspCallbackES, (void*)p_es );
699 es_format_Copy( &p_es->fmt, p_fmt );
701 p_es->p_media = p_media;
703 vlc_mutex_lock( &p_media->lock );
704 TAB_APPEND( p_media->i_es, p_media->es, p_es );
705 vlc_mutex_unlock( &p_media->lock );
710 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
712 media_es_t *p_es = NULL;
715 for( int i = 0; i < p_media->i_es; i++ )
717 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
718 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
719 p_media->es[i]->fmt.i_id == p_fmt->i_id )
721 p_es = p_media->es[i];
726 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
728 vlc_mutex_lock( &p_media->lock );
729 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
730 vlc_mutex_unlock( &p_media->lock );
732 free( p_es->psz_fmtp );
734 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
735 es_format_Clean( &p_es->fmt );
739 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,
740 double f_arg, const char *psz_arg )
745 memset( &cmd, 0, sizeof(cmd) );
747 cmd.p_media = p_media;
749 cmd.i_media_id = p_media->id;
751 cmd.psz_session = strdup(psz_session);
755 cmd.psz_arg = strdup(psz_arg);
757 p_cmd = block_Alloc( sizeof(rtsp_cmd_t) );
758 memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
760 block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
763 static void* CommandThread( void *obj )
765 vod_t *p_vod = (vod_t*)obj;
766 vod_sys_t *p_sys = p_vod->p_sys;
767 int canc = vlc_savecancel ();
771 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
773 vod_media_t *p_media = NULL;
779 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
780 block_Release( p_block_cmd );
782 if( cmd.i_type == RTSP_CMD_TYPE_NONE )
785 if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
787 TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
791 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
793 MediaDel(p_vod, cmd.p_media);
798 for( i = 0; i < p_sys->i_media; i++ )
800 if( p_sys->media[i]->id == cmd.i_media_id )
803 if( i >= p_sys->i_media )
807 p_media = p_sys->media[i];
811 case RTSP_CMD_TYPE_PLAY:
813 vod_MediaControl( p_vod, p_media, cmd.psz_session,
814 VOD_MEDIA_PLAY, cmd.psz_arg, &cmd.i_arg );
816 case RTSP_CMD_TYPE_PAUSE:
818 vod_MediaControl( p_vod, p_media, cmd.psz_session,
819 VOD_MEDIA_PAUSE, &cmd.i_arg );
822 case RTSP_CMD_TYPE_STOP:
823 vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
826 case RTSP_CMD_TYPE_SEEK:
827 vod_MediaControl( p_vod, p_media, cmd.psz_session,
828 VOD_MEDIA_SEEK, cmd.i_arg );
831 case RTSP_CMD_TYPE_REWIND:
832 vod_MediaControl( p_vod, p_media, cmd.psz_session,
833 VOD_MEDIA_REWIND, cmd.f_arg );
836 case RTSP_CMD_TYPE_FORWARD:
837 vod_MediaControl( p_vod, p_media, cmd.psz_session,
838 VOD_MEDIA_FORWARD, cmd.f_arg );
846 free( cmd.psz_session );
850 vlc_restorecancel (canc);
854 /****************************************************************************
855 * RTSP server implementation
856 ****************************************************************************/
857 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
859 rtsp_client_t *p_rtsp = calloc( 1, sizeof(rtsp_client_t) );
865 p_rtsp->psz_session = psz_session;
866 TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
868 p_media->p_vod->p_sys->i_connections++;
869 msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
870 psz_session, p_media->p_vod->p_sys->i_throttle_users );
875 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
877 for( int i = 0; psz_session && i < p_media->i_rtsp; i++ )
879 if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
880 return p_media->rtsp[i];
886 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
888 p_media->p_vod->p_sys->i_connections--;
889 msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
890 p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
892 while( p_rtsp->i_es )
895 free( p_rtsp->es[p_rtsp->i_es] );
899 TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
901 free( p_rtsp->psz_session );
906 static int64_t ParseNPT (const char *str)
908 locale_t loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
909 locale_t oldloc = uselocale (loc);
913 if (sscanf (str, "%u:%u:%f", &hour, &min, &sec) == 3)
914 sec += ((hour * 60) + min) * 60;
916 if (sscanf (str, "%f", &sec) != 1)
919 if (loc != (locale_t)0)
924 return sec * CLOCK_FREQ;
928 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
929 httpd_message_t *answer, const httpd_message_t *query )
931 vod_media_t *p_media = (vod_media_t*)p_args;
932 vod_t *p_vod = p_media->p_vod;
933 const char *psz_transport = NULL;
934 const char *psz_playnow = NULL; /* support option: x-playNow */
935 const char *psz_session = NULL;
936 const char *psz_cseq = NULL;
937 rtsp_client_t *p_rtsp;
940 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
942 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
944 answer->i_proto = HTTPD_PROTO_RTSP;
945 answer->i_version = query->i_version;
946 answer->i_type = HTTPD_MSG_ANSWER;
948 answer->p_body = NULL;
950 switch( query->i_type )
952 case HTTPD_MSG_SETUP:
954 psz_playnow = httpd_MsgGet( query, "x-playNow" );
955 psz_transport = httpd_MsgGet( query, "Transport" );
956 if( psz_transport == NULL )
958 answer->i_status = 400;
961 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
963 if( strstr( psz_transport, "unicast" ) &&
964 strstr( psz_transport, "client_port=" ) )
966 rtsp_client_t *p_rtsp = NULL;
967 char ip[NI_MAXNUMERICHOST];
968 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
969 strlen("client_port=") );
971 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
972 strstr( psz_transport, "RAW/RAW/UDP" ) )
974 p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
975 p_media->b_raw = true;
978 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
980 answer->i_status = 500;
982 answer->p_body = NULL;
986 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
989 psz_session = httpd_MsgGet( query, "Session" );
990 if( !psz_session || !*psz_session )
993 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
994 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
996 answer->i_status = 503;
998 answer->p_body = NULL;
1001 #warning Should use secure randomness here! (spoofing risk)
1002 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1004 psz_session = psz_new;
1006 p_rtsp = RtspClientNew( p_media, psz_new );
1009 answer->i_status = 454;
1011 answer->p_body = NULL;
1017 p_rtsp = RtspClientGet( p_media, psz_session );
1020 answer->i_status = 454;
1022 answer->p_body = NULL;
1027 answer->i_status = 200;
1029 answer->p_body = NULL;
1031 if( p_media->b_raw )
1033 p_rtsp->i_port_raw = i_port;
1035 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1037 httpd_MsgAdd( answer, "Transport",
1038 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1039 i_port, i_port + 1 );
1041 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1043 httpd_MsgAdd( answer, "Transport",
1044 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1045 i_port, i_port + 1 );
1049 httpd_MsgAdd( answer, "Transport",
1050 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1051 i_port, i_port + 1 );
1053 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1055 answer->i_status = 461;
1057 answer->p_body = NULL;
1060 /* Intentional fall-through on x-playNow option in RTSP request */
1065 case HTTPD_MSG_PLAY:
1067 char *psz_output, ip[NI_MAXNUMERICHOST];
1068 int i_port_audio = 0, i_port_video = 0;
1070 /* for now only multicast so easy */
1073 answer->i_status = 200;
1075 answer->p_body = NULL;
1079 psz_session = httpd_MsgGet( query, "Session" );
1080 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1082 p_rtsp = RtspClientGet( p_media, psz_session );
1085 answer->i_status = 500;
1087 answer->p_body = NULL;
1091 if( p_rtsp->b_playing )
1093 const char *psz_position = httpd_MsgGet( query, "Range" );
1094 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1096 psz_position = strstr( psz_position, "npt=" );
1097 if( psz_position && !psz_scale )
1099 int64_t i_time = ParseNPT (psz_position + 4);
1100 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1101 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1102 psz_session, i_time, 0.0, NULL );
1104 else if( psz_scale )
1106 double f_scale = 0.0;
1109 f_scale = us_strtod( psz_scale, &end );
1110 if( end > psz_scale )
1112 f_scale = (f_scale * 30.0);
1113 if( psz_scale[0] == '-' ) /* rewind */
1115 msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1116 CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1117 psz_session, 0, f_scale, NULL );
1119 else if(psz_scale[0] != '1' ) /* fast-forward */
1121 msg_Dbg( p_vod, "fastforward request: %s",
1123 CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1124 psz_session, 0, f_scale, NULL );
1128 /* unpause, in case it's paused */
1129 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1134 if( httpd_ClientIP( cl, ip, NULL ) == NULL ) break;
1136 p_rtsp->b_playing = true;
1138 /* FIXME for != 1 video and 1 audio */
1139 for( int i = 0; i < p_rtsp->i_es; i++ )
1141 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1142 i_port_audio = p_rtsp->es[i]->i_port;
1143 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1144 i_port_video = p_rtsp->es[i]->i_port;
1147 if( p_media->psz_mux )
1149 if( p_media->b_raw )
1151 if( asprintf( &psz_output,
1152 "std{access=udp,dst=%s:%i,mux=%s}",
1153 ip, p_rtsp->i_port_raw, p_media->psz_mux ) < 0 )
1158 if( asprintf( &psz_output,
1159 "rtp{dst=%s,port=%i,mux=%s}",
1160 ip, i_port_video, p_media->psz_mux ) < 0 )
1166 if( asprintf( &psz_output,
1167 "rtp{dst=%s,port-video=%i,port-audio=%i}",
1168 ip, i_port_video, i_port_audio ) < 0 )
1172 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1173 0, 0.0, psz_output );
1178 case HTTPD_MSG_DESCRIBE:
1181 SDPGenerate( p_media, cl );
1183 if( psz_sdp != NULL )
1185 answer->i_status = 200;
1186 httpd_MsgAdd( answer, "Content-type", "%s",
1187 "application/sdp" );
1189 answer->p_body = (uint8_t *)psz_sdp;
1190 answer->i_body = strlen( psz_sdp );
1194 answer->i_status = 500;
1195 answer->p_body = NULL;
1201 case HTTPD_MSG_PAUSE:
1202 psz_session = httpd_MsgGet( query, "Session" );
1203 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1205 p_rtsp = RtspClientGet( p_media, psz_session );
1206 if( !p_rtsp ) break;
1208 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1211 answer->i_status = 200;
1213 answer->p_body = NULL;
1216 case HTTPD_MSG_TEARDOWN:
1217 /* for now only multicast so easy again */
1218 answer->i_status = 200;
1220 answer->p_body = NULL;
1222 psz_session = httpd_MsgGet( query, "Session" );
1223 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1225 p_rtsp = RtspClientGet( p_media, psz_session );
1226 if( !p_rtsp ) break;
1228 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1230 RtspClientDel( p_media, p_rtsp );
1233 case HTTPD_MSG_GETPARAMETER:
1234 answer->i_status = 200;
1236 answer->p_body = NULL;
1240 return VLC_EGENERIC;
1243 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1244 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1245 psz_cseq = httpd_MsgGet( query, "Cseq" );
1246 psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1247 httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1248 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1252 if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1253 httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1254 p_media->p_vod->p_sys->i_session_timeout );
1256 httpd_MsgAdd( answer, "Session", "%s", psz_session );
1262 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1263 httpd_message_t *answer,
1264 const httpd_message_t *query )
1266 media_es_t *p_es = (media_es_t*)p_args;
1267 vod_media_t *p_media = p_es->p_media;
1268 vod_t *p_vod = p_media->p_vod;
1269 rtsp_client_t *p_rtsp = NULL;
1270 const char *psz_transport = NULL;
1271 const char *psz_playnow = NULL; /* support option: x-playNow */
1272 const char *psz_session = NULL;
1273 const char *psz_position = NULL;
1274 const char *psz_cseq = NULL;
1277 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1279 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1281 answer->i_proto = HTTPD_PROTO_RTSP;
1282 answer->i_version = query->i_version;
1283 answer->i_type = HTTPD_MSG_ANSWER;
1285 answer->p_body = NULL;
1287 switch( query->i_type )
1289 case HTTPD_MSG_SETUP:
1290 psz_playnow = httpd_MsgGet( query, "x-playNow" );
1291 psz_transport = httpd_MsgGet( query, "Transport" );
1293 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1295 if( strstr( psz_transport, "unicast" ) &&
1296 strstr( psz_transport, "client_port=" ) )
1298 rtsp_client_t *p_rtsp = NULL;
1299 rtsp_client_es_t *p_rtsp_es = NULL;
1300 char ip[NI_MAXNUMERICHOST];
1301 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1302 strlen("client_port=") );
1304 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
1306 answer->i_status = 500;
1308 answer->p_body = NULL;
1312 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1315 psz_session = httpd_MsgGet( query, "Session" );
1316 if( !psz_session || !*psz_session )
1319 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1320 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1322 answer->i_status = 503;
1324 answer->p_body = NULL;
1327 #warning Session ID should be securely random (spoofing risk)
1328 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1330 psz_session = psz_new;
1332 p_rtsp = RtspClientNew( p_media, psz_new );
1335 answer->i_status = 454;
1337 answer->p_body = NULL;
1343 p_rtsp = RtspClientGet( p_media, psz_session );
1346 answer->i_status = 454;
1348 answer->p_body = NULL;
1353 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1356 answer->i_status = 500;
1358 answer->p_body = NULL;
1361 p_rtsp_es->i_port = i_port;
1362 p_rtsp_es->p_media_es = p_es;
1363 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1365 answer->i_status = 200;
1367 answer->p_body = NULL;
1369 if( p_media->b_raw )
1371 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1373 httpd_MsgAdd( answer, "Transport",
1374 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1375 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1377 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1379 httpd_MsgAdd( answer, "Transport",
1380 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1381 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1386 httpd_MsgAdd( answer, "Transport",
1387 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1388 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1391 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1393 answer->i_status = 461;
1395 answer->p_body = NULL;
1398 /* Intentional fall-through on x-playNow option in RTSP request */
1402 case HTTPD_MSG_PLAY:
1403 /* This is kind of a kludge. Should we only support Aggregate
1405 psz_session = httpd_MsgGet( query, "Session" );
1406 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1408 p_rtsp = RtspClientGet( p_media, psz_session );
1410 psz_position = httpd_MsgGet( query, "Range" );
1411 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1414 int64_t i_time = ParseNPT (psz_position + 4);
1415 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1416 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1417 psz_session, i_time, 0.0, NULL );
1422 answer->i_status = 200;
1424 answer->p_body = NULL;
1428 case HTTPD_MSG_TEARDOWN:
1429 answer->i_status = 200;
1431 answer->p_body = NULL;
1433 psz_session = httpd_MsgGet( query, "Session" );
1434 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1436 p_rtsp = RtspClientGet( p_media, psz_session );
1437 if( !p_rtsp ) break;
1439 for( int i = 0; i < p_rtsp->i_es; i++ )
1441 rtsp_client_es_t *es = p_rtsp->es[i];
1442 if( es->p_media_es == p_es )
1444 TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, es );
1451 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1453 RtspClientDel( p_media, p_rtsp );
1457 case HTTPD_MSG_PAUSE:
1458 /* This is kind of a kludge. Should we only support Aggregate
1460 psz_session = httpd_MsgGet( query, "Session" );
1461 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1463 p_rtsp = RtspClientGet( p_media, psz_session );
1464 if( !p_rtsp ) break;
1466 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1469 answer->i_status = 200;
1471 answer->p_body = NULL;
1475 return VLC_EGENERIC;
1479 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1480 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1481 psz_cseq = httpd_MsgGet( query, "Cseq" );
1483 i_cseq = atoi( psz_cseq );
1486 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1487 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1490 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1495 /*****************************************************************************
1497 * FIXME: need to be moved to a common place ?
1498 *****************************************************************************/
1499 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1501 char *psz_sdp, ip[NI_MAXNUMERICHOST];
1502 const char *psz_control;
1505 if( httpd_ServerIP( cl, ip, &port ) == NULL )
1508 bool ipv6 = ( strchr( ip, ':' ) != NULL );
1510 psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1511 : p_media->psz_rtsp_control_v4;
1513 /* Dummy destination address for RTSP */
1514 struct sockaddr_storage dst;
1515 socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1516 : sizeof( struct sockaddr_in );
1517 memset (&dst, 0, dstlen);
1518 dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1520 dst.ss_len = dstlen;
1523 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1524 NULL, 0, (struct sockaddr *)&dst, dstlen );
1525 if( psz_sdp == NULL )
1528 if( p_media->i_length > 0 )
1530 lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1531 sdp_AddAttribute( &psz_sdp, "range","npt=0-%lld.%03u", d.quot,
1535 for( int i = 0; i < p_media->i_es; i++ )
1537 media_es_t *p_es = p_media->es[i];
1538 const char *mime_major; /* major MIME type */
1540 switch( p_es->fmt.i_cat )
1543 mime_major = "video";
1546 mime_major = "audio";
1549 mime_major = "text";
1555 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1556 p_es->i_payload_type, false, 0,
1557 p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1560 sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, port, i );