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 )
374 p_media->p_rtsp_url =
375 httpd_UrlNew( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL, NULL );
377 if( !p_media->p_rtsp_url )
379 msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
383 msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
385 if( asprintf( &p_media->psz_rtsp_control_v4,
386 "rtsp://%%s:%%d%s/trackID=%%d",
387 p_media->psz_rtsp_path ) < 0 )
390 if( asprintf( &p_media->psz_rtsp_control_v6,
391 "rtsp://[%%s]:%%d%s/trackID=%%d",
392 p_media->psz_rtsp_path ) < 0 )
395 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
396 RtspCallback, (void*)p_media );
397 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
398 RtspCallback, (void*)p_media );
399 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
400 RtspCallback, (void*)p_media );
401 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
402 RtspCallback, (void*)p_media );
403 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
404 RtspCallback, (void*)p_media );
405 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
406 RtspCallback, (void*)p_media );
408 p_media->p_vod = p_vod;
410 vlc_mutex_init( &p_media->lock );
412 p_media->i_length = input_item_GetDuration( p_item );
414 vlc_mutex_lock( &p_item->lock );
415 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
416 for( int i = 0; i < p_item->i_es; i++ )
418 MediaAddES( p_vod, p_media, p_item->es[i] );
420 vlc_mutex_unlock( &p_item->lock );
422 CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0, 0.0, NULL );
428 free( p_media->psz_rtsp_control_v4 );
429 if( p_media->p_rtsp_url )
430 httpd_UrlDelete( p_media->p_rtsp_url );
431 free( p_media->psz_rtsp_path );
437 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
439 CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0, 0.0, NULL );
442 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
444 vod_sys_t *p_sys = p_vod->p_sys;
446 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
448 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
450 httpd_UrlDelete( p_media->p_rtsp_url );
452 while( p_media->i_rtsp > 0 )
453 RtspClientDel( p_media, p_media->rtsp[0] );
454 TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
456 free( p_media->psz_rtsp_path );
457 free( p_media->psz_rtsp_control_v6 );
458 free( p_media->psz_rtsp_control_v4 );
460 while( p_media->i_es )
461 MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
462 TAB_CLEAN( p_media->i_es, p_media->es );
464 vlc_mutex_destroy( &p_media->lock );
469 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
473 media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
477 p_media->psz_mux = NULL;
479 /* TODO: update SDP, etc... */
480 if( asprintf( &psz_urlc, "%s/trackID=%d",
481 p_media->psz_rtsp_path, p_media->i_es ) < 0 )
486 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
488 /* Dynamic payload. No conflict since we put each ES in its own
490 p_es->i_payload_type = 96;
491 p_es->i_clock_rate = 90000;
492 p_es->i_channels = 1;
494 switch( p_fmt->i_codec )
497 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
499 p_es->i_payload_type = 11;
501 else if( p_fmt->audio.i_channels == 2 &&
502 p_fmt->audio.i_rate == 44100 )
504 p_es->i_payload_type = 10;
506 p_es->psz_ptname = "L16";
507 p_es->i_clock_rate = p_fmt->audio.i_rate;
508 p_es->i_channels = p_fmt->audio.i_channels;
511 p_es->psz_ptname = "L8";
512 p_es->i_clock_rate = p_fmt->audio.i_rate;
513 p_es->i_channels = p_fmt->audio.i_channels;
516 p_es->i_payload_type = 14;
517 p_es->psz_ptname = "MPA";
520 p_es->i_payload_type = 32;
521 p_es->psz_ptname = "MPV";
524 p_es->psz_ptname = "ac3";
525 p_es->i_clock_rate = p_fmt->audio.i_rate;
528 p_es->psz_ptname = "H263-1998";
531 p_es->psz_ptname = "H264";
532 p_es->psz_fmtp = NULL;
533 /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
534 if( p_fmt->i_extra > 0 )
536 uint8_t *p_buffer = p_fmt->p_extra;
537 int i_buffer = p_fmt->i_extra;
538 char *p_64_sps = NULL;
539 char *p_64_pps = NULL;
542 while( i_buffer > 4 )
547 while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
552 if( i_buffer == 0 ) break;
555 if( i_buffer < 4 || memcmp(p_buffer, "\x00\x00\x01", 3 ) )
557 /* No startcode found.. */
563 const int i_nal_type = p_buffer[0]&0x1f;
566 for( i_offset = 0; i_offset+2 < i_buffer ; i_offset++)
568 if( !memcmp(p_buffer + i_offset, "\x00\x00\x01", 3 ) )
570 /* we found another startcode */
571 while( i_offset > 0 && 0 == p_buffer[ i_offset - 1 ] )
580 /* No-info found in nal */
584 if( i_nal_type == 7 )
587 p_64_sps = vlc_b64_encode_binary( p_buffer, i_size );
588 /* XXX: nothing ensures that i_size >= 4 ?? */
589 sprintf_hexa( hexa, &p_buffer[1], 3 );
591 else if( i_nal_type == 8 )
594 p_64_pps = vlc_b64_encode_binary( p_buffer, i_size );
600 if( p_64_sps && p_64_pps )
602 if( asprintf( &p_es->psz_fmtp,
603 "packetization-mode=1;profile-level-id=%s;"
604 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
617 if( !p_es->psz_fmtp )
618 p_es->psz_fmtp = strdup( "packetization-mode=1" );
621 p_es->psz_ptname = "MP4V-ES";
622 if( p_fmt->i_extra > 0 )
624 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
625 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
626 if( asprintf( &p_es->psz_fmtp,
627 "profile-level-id=3; config=%s;", p_hexa ) == -1 )
628 p_es->psz_fmtp = NULL;
633 p_es->psz_ptname = "mpeg4-generic";
634 p_es->i_clock_rate = p_fmt->audio.i_rate;
635 if( p_fmt->i_extra > 0 )
637 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
638 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
639 if( asprintf( &p_es->psz_fmtp,
640 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
641 "config=%s; SizeLength=13;IndexLength=3; "
642 "IndexDeltaLength=3; Profile=1;", p_hexa ) == -1 )
643 p_es->psz_fmtp = NULL;
647 case VLC_FOURCC( 'm', 'p', '2', 't' ):
648 p_media->psz_mux = "ts";
649 p_es->i_payload_type = 33;
650 p_es->psz_ptname = "MP2T";
652 case VLC_FOURCC( 'm', 'p', '2', 'p' ):
653 p_media->psz_mux = "ps";
654 p_es->psz_ptname = "MP2P";
656 case VLC_CODEC_AMR_NB:
657 p_es->psz_ptname = "AMR";
658 p_es->i_clock_rate = 8000;
659 if(p_fmt->audio.i_channels == 2 )
660 p_es->i_channels = 2;
661 p_es->psz_fmtp = strdup( "octet-align=1" );
663 case VLC_CODEC_AMR_WB:
664 p_es->psz_ptname = "AMR-WB";
665 p_es->i_clock_rate = 16000;
666 if(p_fmt->audio.i_channels == 2 )
667 p_es->i_channels = 2;
668 p_es->psz_fmtp = strdup( "octet-align=1" );
672 msg_Err( p_vod, "cannot add this stream (unsupported "
673 "codec: %4.4s)", (char*)&p_fmt->i_codec );
680 httpd_UrlNew( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL );
682 if( !p_es->p_rtsp_url )
684 msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
691 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
692 RtspCallbackES, (void*)p_es );
693 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
694 RtspCallbackES, (void*)p_es );
695 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
696 RtspCallbackES, (void*)p_es );
697 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
698 RtspCallbackES, (void*)p_es );
700 es_format_Copy( &p_es->fmt, p_fmt );
702 p_es->p_media = p_media;
704 vlc_mutex_lock( &p_media->lock );
705 TAB_APPEND( p_media->i_es, p_media->es, p_es );
706 vlc_mutex_unlock( &p_media->lock );
711 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
713 media_es_t *p_es = NULL;
716 for( int i = 0; i < p_media->i_es; i++ )
718 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
719 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
720 p_media->es[i]->fmt.i_id == p_fmt->i_id )
722 p_es = p_media->es[i];
727 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
729 vlc_mutex_lock( &p_media->lock );
730 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
731 vlc_mutex_unlock( &p_media->lock );
733 free( p_es->psz_fmtp );
735 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
736 es_format_Clean( &p_es->fmt );
740 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,
741 double f_arg, const char *psz_arg )
746 memset( &cmd, 0, sizeof(cmd) );
748 cmd.p_media = p_media;
750 cmd.i_media_id = p_media->id;
752 cmd.psz_session = strdup(psz_session);
756 cmd.psz_arg = strdup(psz_arg);
758 p_cmd = block_Alloc( sizeof(rtsp_cmd_t) );
759 memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
761 block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
764 static void* CommandThread( void *obj )
766 vod_t *p_vod = (vod_t*)obj;
767 vod_sys_t *p_sys = p_vod->p_sys;
768 int canc = vlc_savecancel ();
772 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
774 vod_media_t *p_media = NULL;
780 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
781 block_Release( p_block_cmd );
783 if( cmd.i_type == RTSP_CMD_TYPE_NONE )
786 if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
788 TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
792 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
794 MediaDel(p_vod, cmd.p_media);
799 for( i = 0; i < p_sys->i_media; i++ )
801 if( p_sys->media[i]->id == cmd.i_media_id )
804 if( i >= p_sys->i_media )
808 p_media = p_sys->media[i];
812 case RTSP_CMD_TYPE_PLAY:
814 vod_MediaControl( p_vod, p_media, cmd.psz_session,
815 VOD_MEDIA_PLAY, cmd.psz_arg, &cmd.i_arg );
817 case RTSP_CMD_TYPE_PAUSE:
819 vod_MediaControl( p_vod, p_media, cmd.psz_session,
820 VOD_MEDIA_PAUSE, &cmd.i_arg );
823 case RTSP_CMD_TYPE_STOP:
824 vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
827 case RTSP_CMD_TYPE_SEEK:
828 vod_MediaControl( p_vod, p_media, cmd.psz_session,
829 VOD_MEDIA_SEEK, cmd.i_arg );
832 case RTSP_CMD_TYPE_REWIND:
833 vod_MediaControl( p_vod, p_media, cmd.psz_session,
834 VOD_MEDIA_REWIND, cmd.f_arg );
837 case RTSP_CMD_TYPE_FORWARD:
838 vod_MediaControl( p_vod, p_media, cmd.psz_session,
839 VOD_MEDIA_FORWARD, cmd.f_arg );
847 free( cmd.psz_session );
851 vlc_restorecancel (canc);
855 /****************************************************************************
856 * RTSP server implementation
857 ****************************************************************************/
858 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
860 rtsp_client_t *p_rtsp = calloc( 1, sizeof(rtsp_client_t) );
866 p_rtsp->psz_session = psz_session;
867 TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
869 p_media->p_vod->p_sys->i_connections++;
870 msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
871 psz_session, p_media->p_vod->p_sys->i_throttle_users );
876 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
878 for( int i = 0; psz_session && i < p_media->i_rtsp; i++ )
880 if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
881 return p_media->rtsp[i];
887 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
889 p_media->p_vod->p_sys->i_connections--;
890 msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
891 p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
893 while( p_rtsp->i_es )
896 free( p_rtsp->es[p_rtsp->i_es] );
900 TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
902 free( p_rtsp->psz_session );
907 static int64_t ParseNPT (const char *str)
909 locale_t loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
910 locale_t oldloc = uselocale (loc);
914 if (sscanf (str, "%u:%u:%f", &hour, &min, &sec) == 3)
915 sec += ((hour * 60) + min) * 60;
917 if (sscanf (str, "%f", &sec) != 1)
920 if (loc != (locale_t)0)
925 return sec * CLOCK_FREQ;
929 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
930 httpd_message_t *answer, const httpd_message_t *query )
932 vod_media_t *p_media = (vod_media_t*)p_args;
933 vod_t *p_vod = p_media->p_vod;
934 const char *psz_transport = NULL;
935 const char *psz_playnow = NULL; /* support option: x-playNow */
936 const char *psz_session = NULL;
937 const char *psz_cseq = NULL;
938 rtsp_client_t *p_rtsp;
941 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
943 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
945 answer->i_proto = HTTPD_PROTO_RTSP;
946 answer->i_version = query->i_version;
947 answer->i_type = HTTPD_MSG_ANSWER;
949 answer->p_body = NULL;
951 switch( query->i_type )
953 case HTTPD_MSG_SETUP:
955 psz_playnow = httpd_MsgGet( query, "x-playNow" );
956 psz_transport = httpd_MsgGet( query, "Transport" );
957 if( psz_transport == NULL )
959 answer->i_status = 400;
962 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
964 if( strstr( psz_transport, "unicast" ) &&
965 strstr( psz_transport, "client_port=" ) )
967 rtsp_client_t *p_rtsp = NULL;
968 char ip[NI_MAXNUMERICHOST];
969 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
970 strlen("client_port=") );
972 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
973 strstr( psz_transport, "RAW/RAW/UDP" ) )
975 p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
976 p_media->b_raw = true;
979 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
981 answer->i_status = 500;
983 answer->p_body = NULL;
987 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
990 psz_session = httpd_MsgGet( query, "Session" );
991 if( !psz_session || !*psz_session )
994 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
995 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
997 answer->i_status = 503;
999 answer->p_body = NULL;
1002 #warning Should use secure randomness here! (spoofing risk)
1003 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1005 psz_session = psz_new;
1007 p_rtsp = RtspClientNew( p_media, psz_new );
1010 answer->i_status = 454;
1012 answer->p_body = NULL;
1018 p_rtsp = RtspClientGet( p_media, psz_session );
1021 answer->i_status = 454;
1023 answer->p_body = NULL;
1028 answer->i_status = 200;
1030 answer->p_body = NULL;
1032 if( p_media->b_raw )
1034 p_rtsp->i_port_raw = i_port;
1036 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1038 httpd_MsgAdd( answer, "Transport",
1039 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1040 i_port, i_port + 1 );
1042 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1044 httpd_MsgAdd( answer, "Transport",
1045 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1046 i_port, i_port + 1 );
1050 httpd_MsgAdd( answer, "Transport",
1051 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1052 i_port, i_port + 1 );
1054 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1056 answer->i_status = 461;
1058 answer->p_body = NULL;
1061 /* Intentional fall-through on x-playNow option in RTSP request */
1066 case HTTPD_MSG_PLAY:
1068 char *psz_output, ip[NI_MAXNUMERICHOST];
1069 int i_port_audio = 0, i_port_video = 0;
1071 /* for now only multicast so easy */
1074 answer->i_status = 200;
1076 answer->p_body = NULL;
1080 psz_session = httpd_MsgGet( query, "Session" );
1081 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1083 p_rtsp = RtspClientGet( p_media, psz_session );
1086 answer->i_status = 500;
1088 answer->p_body = NULL;
1092 if( p_rtsp->b_playing )
1094 const char *psz_position = httpd_MsgGet( query, "Range" );
1095 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1097 psz_position = strstr( psz_position, "npt=" );
1098 if( psz_position && !psz_scale )
1100 int64_t i_time = ParseNPT (psz_position + 4);
1101 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1102 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1103 psz_session, i_time, 0.0, NULL );
1105 else if( psz_scale )
1107 double f_scale = 0.0;
1110 f_scale = us_strtod( psz_scale, &end );
1111 if( end > psz_scale )
1113 f_scale = (f_scale * 30.0);
1114 if( psz_scale[0] == '-' ) /* rewind */
1116 msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1117 CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1118 psz_session, 0, f_scale, NULL );
1120 else if(psz_scale[0] != '1' ) /* fast-forward */
1122 msg_Dbg( p_vod, "fastforward request: %s",
1124 CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1125 psz_session, 0, f_scale, NULL );
1129 /* unpause, in case it's paused */
1130 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1135 if( httpd_ClientIP( cl, ip, NULL ) == NULL ) break;
1137 p_rtsp->b_playing = true;
1139 /* FIXME for != 1 video and 1 audio */
1140 for( int i = 0; i < p_rtsp->i_es; i++ )
1142 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1143 i_port_audio = p_rtsp->es[i]->i_port;
1144 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1145 i_port_video = p_rtsp->es[i]->i_port;
1148 if( p_media->psz_mux )
1150 if( p_media->b_raw )
1152 if( asprintf( &psz_output,
1153 "std{access=udp,dst=%s:%i,mux=%s}",
1154 ip, p_rtsp->i_port_raw, p_media->psz_mux ) < 0 )
1159 if( asprintf( &psz_output,
1160 "rtp{dst=%s,port=%i,mux=%s}",
1161 ip, i_port_video, p_media->psz_mux ) < 0 )
1167 if( asprintf( &psz_output,
1168 "rtp{dst=%s,port-video=%i,port-audio=%i}",
1169 ip, i_port_video, i_port_audio ) < 0 )
1173 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1174 0, 0.0, psz_output );
1179 case HTTPD_MSG_DESCRIBE:
1182 SDPGenerate( p_media, cl );
1184 if( psz_sdp != NULL )
1186 answer->i_status = 200;
1187 httpd_MsgAdd( answer, "Content-type", "%s",
1188 "application/sdp" );
1190 answer->p_body = (uint8_t *)psz_sdp;
1191 answer->i_body = strlen( psz_sdp );
1195 answer->i_status = 500;
1196 answer->p_body = NULL;
1202 case HTTPD_MSG_PAUSE:
1203 psz_session = httpd_MsgGet( query, "Session" );
1204 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1206 p_rtsp = RtspClientGet( p_media, psz_session );
1207 if( !p_rtsp ) break;
1209 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1212 answer->i_status = 200;
1214 answer->p_body = NULL;
1217 case HTTPD_MSG_TEARDOWN:
1218 /* for now only multicast so easy again */
1219 answer->i_status = 200;
1221 answer->p_body = NULL;
1223 psz_session = httpd_MsgGet( query, "Session" );
1224 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1226 p_rtsp = RtspClientGet( p_media, psz_session );
1227 if( !p_rtsp ) break;
1229 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1231 RtspClientDel( p_media, p_rtsp );
1234 case HTTPD_MSG_GETPARAMETER:
1235 answer->i_status = 200;
1237 answer->p_body = NULL;
1241 return VLC_EGENERIC;
1244 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1245 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1246 psz_cseq = httpd_MsgGet( query, "Cseq" );
1247 psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1248 httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1249 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1253 if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1254 httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1255 p_media->p_vod->p_sys->i_session_timeout );
1257 httpd_MsgAdd( answer, "Session", "%s", psz_session );
1263 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1264 httpd_message_t *answer,
1265 const httpd_message_t *query )
1267 media_es_t *p_es = (media_es_t*)p_args;
1268 vod_media_t *p_media = p_es->p_media;
1269 vod_t *p_vod = p_media->p_vod;
1270 rtsp_client_t *p_rtsp = NULL;
1271 const char *psz_transport = NULL;
1272 const char *psz_playnow = NULL; /* support option: x-playNow */
1273 const char *psz_session = NULL;
1274 const char *psz_position = NULL;
1275 const char *psz_cseq = NULL;
1278 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1280 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1282 answer->i_proto = HTTPD_PROTO_RTSP;
1283 answer->i_version = query->i_version;
1284 answer->i_type = HTTPD_MSG_ANSWER;
1286 answer->p_body = NULL;
1288 switch( query->i_type )
1290 case HTTPD_MSG_SETUP:
1291 psz_playnow = httpd_MsgGet( query, "x-playNow" );
1292 psz_transport = httpd_MsgGet( query, "Transport" );
1294 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1296 if( strstr( psz_transport, "unicast" ) &&
1297 strstr( psz_transport, "client_port=" ) )
1299 rtsp_client_t *p_rtsp = NULL;
1300 rtsp_client_es_t *p_rtsp_es = NULL;
1301 char ip[NI_MAXNUMERICHOST];
1302 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1303 strlen("client_port=") );
1305 if( httpd_ClientIP( cl, ip, NULL ) == NULL )
1307 answer->i_status = 500;
1309 answer->p_body = NULL;
1313 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1316 psz_session = httpd_MsgGet( query, "Session" );
1317 if( !psz_session || !*psz_session )
1320 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1321 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1323 answer->i_status = 503;
1325 answer->p_body = NULL;
1328 #warning Session ID should be securely random (spoofing risk)
1329 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1331 psz_session = psz_new;
1333 p_rtsp = RtspClientNew( p_media, psz_new );
1336 answer->i_status = 454;
1338 answer->p_body = NULL;
1344 p_rtsp = RtspClientGet( p_media, psz_session );
1347 answer->i_status = 454;
1349 answer->p_body = NULL;
1354 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1357 answer->i_status = 500;
1359 answer->p_body = NULL;
1362 p_rtsp_es->i_port = i_port;
1363 p_rtsp_es->p_media_es = p_es;
1364 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1366 answer->i_status = 200;
1368 answer->p_body = NULL;
1370 if( p_media->b_raw )
1372 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1374 httpd_MsgAdd( answer, "Transport",
1375 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1376 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1378 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1380 httpd_MsgAdd( answer, "Transport",
1381 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1382 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1387 httpd_MsgAdd( answer, "Transport",
1388 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1389 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1392 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1394 answer->i_status = 461;
1396 answer->p_body = NULL;
1399 /* Intentional fall-through on x-playNow option in RTSP request */
1403 case HTTPD_MSG_PLAY:
1404 /* This is kind of a kludge. Should we only support Aggregate
1406 psz_session = httpd_MsgGet( query, "Session" );
1407 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1409 p_rtsp = RtspClientGet( p_media, psz_session );
1411 psz_position = httpd_MsgGet( query, "Range" );
1412 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1415 int64_t i_time = ParseNPT (psz_position + 4);
1416 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1417 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1418 psz_session, i_time, 0.0, NULL );
1423 answer->i_status = 200;
1425 answer->p_body = NULL;
1429 case HTTPD_MSG_TEARDOWN:
1430 answer->i_status = 200;
1432 answer->p_body = NULL;
1434 psz_session = httpd_MsgGet( query, "Session" );
1435 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1437 p_rtsp = RtspClientGet( p_media, psz_session );
1438 if( !p_rtsp ) break;
1440 for( int i = 0; i < p_rtsp->i_es; i++ )
1442 rtsp_client_es_t *es = p_rtsp->es[i];
1443 if( es->p_media_es == p_es )
1445 TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, es );
1452 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1454 RtspClientDel( p_media, p_rtsp );
1458 case HTTPD_MSG_PAUSE:
1459 /* This is kind of a kludge. Should we only support Aggregate
1461 psz_session = httpd_MsgGet( query, "Session" );
1462 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1464 p_rtsp = RtspClientGet( p_media, psz_session );
1465 if( !p_rtsp ) break;
1467 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1470 answer->i_status = 200;
1472 answer->p_body = NULL;
1476 return VLC_EGENERIC;
1480 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1481 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1482 psz_cseq = httpd_MsgGet( query, "Cseq" );
1484 i_cseq = atoi( psz_cseq );
1487 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1488 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1491 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1496 /*****************************************************************************
1498 * FIXME: need to be moved to a common place ?
1499 *****************************************************************************/
1500 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1502 char *psz_sdp, ip[NI_MAXNUMERICHOST];
1503 const char *psz_control;
1506 if( httpd_ServerIP( cl, ip, &port ) == NULL )
1509 bool ipv6 = ( strchr( ip, ':' ) != NULL );
1511 psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1512 : p_media->psz_rtsp_control_v4;
1514 /* Dummy destination address for RTSP */
1515 struct sockaddr_storage dst;
1516 socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1517 : sizeof( struct sockaddr_in );
1518 memset (&dst, 0, dstlen);
1519 dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1521 dst.ss_len = dstlen;
1524 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1525 NULL, 0, (struct sockaddr *)&dst, dstlen );
1526 if( psz_sdp == NULL )
1529 if( p_media->i_length > 0 )
1531 lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1532 sdp_AddAttribute( &psz_sdp, "range","npt=0-%lld.%03u", d.quot,
1536 for( int i = 0; i < p_media->i_es; i++ )
1538 media_es_t *p_es = p_media->es[i];
1539 const char *mime_major; /* major MIME type */
1541 switch( p_es->fmt.i_cat )
1544 mime_major = "video";
1547 mime_major = "audio";
1550 mime_major = "text";
1556 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1557 p_es->i_payload_type, false, 0,
1558 p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1561 sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, port, i );