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Unexported vlc_thread_set_priority().
[vlc/vlc-skelet.git] / modules / misc / rtsp.c
blob1ba5aea0aebbbd99475f13b3813c5be63d783ca5
1 /*****************************************************************************
2 * rtsp.c: rtsp VoD server module
3 *****************************************************************************
4 * Copyright (C) 2003-2006 the VideoLAN team
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 *
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.
14 *
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.
19 *
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 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_input.h>
36 #include <vlc_sout.h>
37 #include <vlc_block.h>
38
39 #include <vlc_httpd.h>
40 #include <vlc_vod.h>
41 #include <vlc_url.h>
42 #include <vlc_network.h>
43 #include <vlc_charset.h>
44 #include <vlc_strings.h>
45 #include <vlc_rand.h>
46
47 #ifndef WIN32
48 # include <locale.h>
49 #endif
50
51 #ifdef HAVE_XLOCALE_H
52 # include <xlocale.h>
53 #endif
54
55 /*****************************************************************************
56 * Module descriptor
57 *****************************************************************************/
58 static int Open ( vlc_object_t * );
59 static void Close( vlc_object_t * );
60
61 #define HOST_TEXT N_( "RTSP host address" )
62 #define HOST_LONGTEXT N_( \
63 "This defines the address, port and path the RTSP VOD server will listen " \
64 "on.\nSyntax is address:port/path. The default is to listen on all "\
65 "interfaces (address 0.0.0.0), on port 554, with no path.\nTo listen " \
66 "only on the local interface, use \"localhost\" as address." )
67
68 #define THROTTLE_TEXT N_( "Maximum number of connections" )
69 #define THROTTLE_LONGTEXT N_( "This limits the maximum number of clients " \
70 "that can connect to the RTSP VOD. 0 means no limit." )
71
72 #define RAWMUX_TEXT N_( "MUX for RAW RTSP transport" )
73
74 #define SESSION_TIMEOUT_TEXT N_( "Sets the timeout option in the RTSP " \
75 "session string" )
76 #define SESSION_TIMEOUT_LONGTEXT N_( "Defines what timeout option to add " \
77 "to the RTSP session ID string. Setting it to a negative number removes " \
78 "the timeout option entirely. This is needed by some IPTV STBs (such as " \
79 "those made by HansunTech) which get confused by it. The default is 5." )
80
81 vlc_module_begin ()
82 set_shortname( N_("RTSP VoD" ) )
83 set_description( N_("RTSP VoD server") )
84 set_category( CAT_SOUT )
85 set_subcategory( SUBCAT_SOUT_VOD )
86 set_capability( "vod server", 1 )
87 set_callbacks( Open, Close )
88 add_shortcut( "rtsp" )
89 add_string ( "rtsp-host", NULL, HOST_TEXT, HOST_LONGTEXT, true )
90 add_string( "rtsp-raw-mux", "ts", RAWMUX_TEXT,
91 RAWMUX_TEXT, true )
92 add_integer( "rtsp-throttle-users", 0, THROTTLE_TEXT,
93 THROTTLE_LONGTEXT, true )
94 add_integer( "rtsp-session-timeout", 5, SESSION_TIMEOUT_TEXT,
95 SESSION_TIMEOUT_LONGTEXT, true )
96 vlc_module_end ()
97
98 /*****************************************************************************
99 * Exported prototypes
100 *****************************************************************************/
101
102 typedef struct media_es_t media_es_t;
103
104 typedef struct
105 {
106 media_es_t *p_media_es;
107 int i_port;
108
109 } rtsp_client_es_t;
110
111 typedef struct
112 {
113 char *psz_session;
114
115 bool b_playing; /* is it in "play" state */
116 int i_port_raw;
117
118 int i_es;
119 rtsp_client_es_t **es;
120
121 } rtsp_client_t;
122
123 struct media_es_t
124 {
125 /* VoD server */
126 vod_t *p_vod;
127
128 /* RTSP server */
129 httpd_url_t *p_rtsp_url;
130
131 vod_media_t *p_media;
132
133 es_format_t fmt;
134 uint8_t i_payload_type;
135 const char *psz_ptname;
136 unsigned i_clock_rate;
137 unsigned i_channels;
138 char *psz_fmtp;
139
140 };
141
142 struct vod_media_t
143 {
144 int id;
145
146 /* VoD server */
147 vod_t *p_vod;
148
149 /* RTSP server */
150 httpd_url_t *p_rtsp_url;
151 char *psz_rtsp_control_v4;
152 char *psz_rtsp_control_v6;
153 char *psz_rtsp_path;
154
155 vlc_mutex_t lock;
156
157 /* ES list */
158 int i_es;
159 media_es_t **es;
160 const char *psz_mux;
161 bool b_raw;
162
163 /* RTSP client */
164 int i_rtsp;
165 rtsp_client_t **rtsp;
166
167 /* Infos */
168 mtime_t i_length;
169 };
170
171 struct vod_sys_t
172 {
173 /* RTSP server */
174 httpd_host_t *p_rtsp_host;
175 char *psz_path;
176 int i_port;
177 int i_throttle_users;
178 int i_connections;
179
180 char *psz_raw_mux;
181
182 int i_session_timeout;
183
184 /* List of media */
185 int i_media_id;
186 int i_media;
187 vod_media_t **media;
188
189 /* */
190 vlc_thread_t thread;
191 block_fifo_t *p_fifo_cmd;
192 };
193
194 /* rtsp delayed command (to avoid deadlock between vlm/httpd) */
195 typedef enum
196 {
197 RTSP_CMD_TYPE_NONE, /* Exit requested */
198
199 RTSP_CMD_TYPE_PLAY,
200 RTSP_CMD_TYPE_PAUSE,
201 RTSP_CMD_TYPE_STOP,
202 RTSP_CMD_TYPE_SEEK,
203 RTSP_CMD_TYPE_REWIND,
204 RTSP_CMD_TYPE_FORWARD,
205
206 RTSP_CMD_TYPE_ADD,
207 RTSP_CMD_TYPE_DEL,
208 } rtsp_cmd_type_t;
209
210 /* */
211 typedef struct
212 {
213 int i_type;
214 int i_media_id;
215 vod_media_t *p_media;
216 char *psz_session;
217 char *psz_arg;
218 int64_t i_arg;
219 double f_arg;
220 } rtsp_cmd_t;
221
222 static vod_media_t *MediaNew( vod_t *, const char *, input_item_t * );
223 static void MediaDel( vod_t *, vod_media_t * );
224 static void MediaAskDel ( vod_t *, vod_media_t * );
225 static int MediaAddES( vod_t *, vod_media_t *, es_format_t * );
226 static void MediaDelES( vod_t *, vod_media_t *, es_format_t * );
227
228 static void* CommandThread( void * );
229 static void CommandPush( vod_t *, rtsp_cmd_type_t, vod_media_t *,
230 const char *psz_session, int64_t i_arg,
231 double f_arg, const char *psz_arg );
232
233 static rtsp_client_t *RtspClientNew( vod_media_t *, char * );
234 static rtsp_client_t *RtspClientGet( vod_media_t *, const char * );
235 static void RtspClientDel( vod_media_t *, rtsp_client_t * );
236
237 static int RtspCallback( httpd_callback_sys_t *, httpd_client_t *,
238 httpd_message_t *, const httpd_message_t * );
239 static int RtspCallbackES( httpd_callback_sys_t *, httpd_client_t *,
240 httpd_message_t *, const httpd_message_t * );
241
242 static char *SDPGenerate( const vod_media_t *, httpd_client_t *cl );
243
244 static void sprintf_hexa( char *s, uint8_t *p_data, int i_data )
245 {
246 static const char hex[16] = "0123456789abcdef";
247
248 for( int i = 0; i < i_data; i++ )
249 {
250 s[2*i+0] = hex[(p_data[i]>>4)&0xf];
251 s[2*i+1] = hex[(p_data[i] )&0xf];
252 }
253 s[2*i_data] = '\0';
254 }
255
256 /*****************************************************************************
257 * Open: Starts the RTSP server module
258 *****************************************************************************/
259 static int Open( vlc_object_t *p_this )
260 {
261 vod_t *p_vod = (vod_t *)p_this;
262 vod_sys_t *p_sys = NULL;
263 char *psz_url = NULL;
264 vlc_url_t url;
265
266 psz_url = var_InheritString( p_vod, "rtsp-host" );
267 vlc_UrlParse( &url, psz_url, 0 );
268 free( psz_url );
269
270 if( url.i_port <= 0 ) url.i_port = 554;
271
272 p_vod->p_sys = p_sys = malloc( sizeof( vod_sys_t ) );
273 if( !p_sys ) goto error;
274 p_sys->p_rtsp_host = 0;
275
276 p_sys->i_session_timeout = var_CreateGetInteger( p_this, "rtsp-session-timeout" );
277
278 p_sys->i_throttle_users = var_CreateGetInteger( p_this, "rtsp-throttle-users" );
279 msg_Dbg( p_this, "allowing up to %d connections", p_sys->i_throttle_users );
280 p_sys->i_connections = 0;
281
282 p_sys->psz_raw_mux = var_CreateGetString( p_this, "rtsp-raw-mux" );
283
284 p_sys->p_rtsp_host =
285 httpd_HostNew( VLC_OBJECT(p_vod), url.psz_host, url.i_port );
286 if( !p_sys->p_rtsp_host )
287 {
288 msg_Err( p_vod, "cannot create RTSP server (%s:%i)",
289 url.psz_host, url.i_port );
290 goto error;
291 }
292
293 p_sys->psz_path = strdup( url.psz_path ? url.psz_path : "/" );
294 p_sys->i_port = url.i_port;
295
296 vlc_UrlClean( &url );
297
298 TAB_INIT( p_sys->i_media, p_sys->media );
299 p_sys->i_media_id = 0;
300
301 p_vod->pf_media_new = MediaNew;
302 p_vod->pf_media_del = MediaAskDel;
303
304 p_sys->p_fifo_cmd = block_FifoNew();
305 if( vlc_clone( &p_sys->thread, CommandThread, p_vod, VLC_THREAD_PRIORITY_LOW ) )
306 {
307 msg_Err( p_vod, "cannot spawn rtsp vod thread" );
308 block_FifoRelease( p_sys->p_fifo_cmd );
309 free( p_sys->psz_path );
310 goto error;
311 }
312
313 return VLC_SUCCESS;
314
315 error:
316 if( p_sys )
317 {
318 if( p_sys->p_rtsp_host ) httpd_HostDelete( p_sys->p_rtsp_host );
319 free( p_sys->psz_raw_mux );
320 free( p_sys );
321 }
322 vlc_UrlClean( &url );
323
324 return VLC_EGENERIC;
325 }
326
327 /*****************************************************************************
328 * Close:
329 *****************************************************************************/
330 static void Close( vlc_object_t * p_this )
331 {
332 vod_t *p_vod = (vod_t *)p_this;
333 vod_sys_t *p_sys = p_vod->p_sys;
334
335 /* Stop command thread */
336 CommandPush( p_vod, RTSP_CMD_TYPE_NONE, NULL, NULL, 0, 0.0, NULL );
337 vlc_join( p_sys->thread, NULL );
338
339 while( block_FifoCount( p_sys->p_fifo_cmd ) > 0 )
340 {
341 rtsp_cmd_t cmd;
342 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
343 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
344 block_Release( p_block_cmd );
345 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
346 MediaDel(p_vod, cmd.p_media);
347 free( cmd.psz_session );
348 free( cmd.psz_arg );
349 }
350 block_FifoRelease( p_sys->p_fifo_cmd );
351
352 httpd_HostDelete( p_sys->p_rtsp_host );
353 var_Destroy( p_this, "rtsp-session-timeout" );
354 var_Destroy( p_this, "rtsp-throttle-users" );
355 var_Destroy( p_this, "rtsp-raw-mux" );
356
357 /* Check VLM is not buggy */
358 if( p_sys->i_media > 0 )
359 msg_Err( p_vod, "rtsp vod leaking %d medias", p_sys->i_media );
360 TAB_CLEAN( p_sys->i_media, p_sys->media );
361
362 free( p_sys->psz_path );
363 free( p_sys->psz_raw_mux );
364 free( p_sys );
365 }
366
367 /*****************************************************************************
368 * Media handling
369 *****************************************************************************/
370 static vod_media_t *MediaNew( vod_t *p_vod, const char *psz_name,
371 input_item_t *p_item )
372 {
373 vod_sys_t *p_sys = p_vod->p_sys;
374
375 vod_media_t *p_media = calloc( 1, sizeof(vod_media_t) );
376 if( !p_media )
377 return NULL;
378
379 p_media->id = p_sys->i_media_id++;
380 TAB_INIT( p_media->i_es, p_media->es );
381 p_media->psz_mux = NULL;
382 TAB_INIT( p_media->i_rtsp, p_media->rtsp );
383 p_media->b_raw = false;
384
385 if( asprintf( &p_media->psz_rtsp_path, "%s%s",
386 p_sys->psz_path, psz_name ) <0 )
387 return NULL;
388 p_media->p_rtsp_url =
389 httpd_UrlNewUnique( p_sys->p_rtsp_host, p_media->psz_rtsp_path, NULL,
390 NULL, NULL );
391
392 if( !p_media->p_rtsp_url )
393 {
394 msg_Err( p_vod, "cannot create RTSP url (%s)", p_media->psz_rtsp_path);
395 free( p_media->psz_rtsp_path );
396 free( p_media );
397 return NULL;
398 }
399
400 msg_Dbg( p_vod, "created RTSP url: %s", p_media->psz_rtsp_path );
401
402 if( asprintf( &p_media->psz_rtsp_control_v4,
403 "rtsp://%%s:%d%s/trackID=%%d",
404 p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
405 {
406 httpd_UrlDelete( p_media->p_rtsp_url );
407 free( p_media->psz_rtsp_path );
408 free( p_media );
409 return NULL;
410 }
411 if( asprintf( &p_media->psz_rtsp_control_v6,
412 "rtsp://[%%s]:%d%s/trackID=%%d",
413 p_sys->i_port, p_media->psz_rtsp_path ) < 0 )
414 {
415 httpd_UrlDelete( p_media->p_rtsp_url );
416 free( p_media->psz_rtsp_path );
417 free( p_media );
418 return NULL;
419 }
420
421 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_SETUP,
422 RtspCallback, (void*)p_media );
423 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_DESCRIBE,
424 RtspCallback, (void*)p_media );
425 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PLAY,
426 RtspCallback, (void*)p_media );
427 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_PAUSE,
428 RtspCallback, (void*)p_media );
429 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_GETPARAMETER,
430 RtspCallback, (void*)p_media );
431 httpd_UrlCatch( p_media->p_rtsp_url, HTTPD_MSG_TEARDOWN,
432 RtspCallback, (void*)p_media );
433
434 p_media->p_vod = p_vod;
435
436 vlc_mutex_init( &p_media->lock );
437
438 p_media->i_length = input_item_GetDuration( p_item );
439
440 vlc_mutex_lock( &p_item->lock );
441 msg_Dbg( p_vod, "media has %i declared ES", p_item->i_es );
442 for( int i = 0; i < p_item->i_es; i++ )
443 {
444 MediaAddES( p_vod, p_media, p_item->es[i] );
445 }
446 vlc_mutex_unlock( &p_item->lock );
447
448 CommandPush( p_vod, RTSP_CMD_TYPE_ADD, p_media, NULL, 0, 0.0, NULL );
449 return p_media;
450 }
451
452 static void MediaAskDel ( vod_t *p_vod, vod_media_t *p_media )
453 {
454 CommandPush( p_vod, RTSP_CMD_TYPE_DEL, p_media, NULL, 0, 0.0, NULL );
455 }
456
457 static void MediaDel( vod_t *p_vod, vod_media_t *p_media )
458 {
459 vod_sys_t *p_sys = p_vod->p_sys;
460
461 msg_Dbg( p_vod, "deleting media: %s", p_media->psz_rtsp_path );
462
463 TAB_REMOVE( p_sys->i_media, p_sys->media, p_media );
464
465 httpd_UrlDelete( p_media->p_rtsp_url );
466
467 while( p_media->i_rtsp > 0 )
468 RtspClientDel( p_media, p_media->rtsp[0] );
469 TAB_CLEAN( p_media->i_rtsp, p_media->rtsp );
470
471 free( p_media->psz_rtsp_path );
472 free( p_media->psz_rtsp_control_v6 );
473 free( p_media->psz_rtsp_control_v4 );
474
475 while( p_media->i_es )
476 MediaDelES( p_vod, p_media, &p_media->es[0]->fmt );
477 TAB_CLEAN( p_media->i_es, p_media->es );
478
479 vlc_mutex_destroy( &p_media->lock );
480
481 free( p_media );
482 }
483
484 static int MediaAddES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt )
485 {
486 char *psz_urlc;
487
488 media_es_t *p_es = calloc( 1, sizeof(media_es_t) );
489 if( !p_es )
490 return VLC_ENOMEM;
491
492 p_media->psz_mux = NULL;
493
494 /* TODO: update SDP, etc... */
495 if( asprintf( &psz_urlc, "%s/trackID=%d",
496 p_media->psz_rtsp_path, p_media->i_es ) < 0 )
497 {
498 free( p_es );
499 return VLC_ENOMEM;
500 }
501 msg_Dbg( p_vod, " - ES %4.4s (%s)", (char *)&p_fmt->i_codec, psz_urlc );
502
503 /* Dynamic payload. No conflict since we put each ES in its own
504 * RTP session */
505 p_es->i_payload_type = 96;
506 p_es->i_clock_rate = 90000;
507 p_es->i_channels = 1;
508
509 switch( p_fmt->i_codec )
510 {
511 case VLC_CODEC_S16B:
512 if( p_fmt->audio.i_channels == 1 && p_fmt->audio.i_rate == 44100 )
513 {
514 p_es->i_payload_type = 11;
515 }
516 else if( p_fmt->audio.i_channels == 2 &&
517 p_fmt->audio.i_rate == 44100 )
518 {
519 p_es->i_payload_type = 10;
520 }
521 p_es->psz_ptname = "L16";
522 p_es->i_clock_rate = p_fmt->audio.i_rate;
523 p_es->i_channels = p_fmt->audio.i_channels;
524 break;
525 case VLC_CODEC_U8:
526 p_es->psz_ptname = "L8";
527 p_es->i_clock_rate = p_fmt->audio.i_rate;
528 p_es->i_channels = p_fmt->audio.i_channels;
529 break;
530 case VLC_CODEC_MPGA:
531 p_es->i_payload_type = 14;
532 p_es->psz_ptname = "MPA";
533 break;
534 case VLC_CODEC_MPGV:
535 p_es->i_payload_type = 32;
536 p_es->psz_ptname = "MPV";
537 break;
538 case VLC_CODEC_A52:
539 p_es->psz_ptname = "ac3";
540 p_es->i_clock_rate = p_fmt->audio.i_rate;
541 break;
542 case VLC_CODEC_H263:
543 p_es->psz_ptname = "H263-1998";
544 break;
545 case VLC_CODEC_H264:
546 p_es->psz_ptname = "H264";
547 p_es->psz_fmtp = NULL;
548 /* FIXME AAAAAAAAAAAARRRRRRRRGGGG copied from stream_out/rtp.c */
549 if( p_fmt->i_extra > 0 )
550 {
551 uint8_t *p_buffer = p_fmt->p_extra;
552 int i_buffer = p_fmt->i_extra;
553 char *p_64_sps = NULL;
554 char *p_64_pps = NULL;
555 char hexa[6+1];
556
557 while( i_buffer > 4 )
558 {
559 int i_offset = 0;
560 int i_size = 0;
561
562 while( p_buffer[0] != 0 || p_buffer[1] != 0 ||
563 p_buffer[2] != 1 )
564 {
565 p_buffer++;
566 i_buffer--;
567 if( i_buffer == 0 ) break;
568 }
569
570 if( i_buffer < 4 || memcmp(p_buffer, "\x00\x00\x01", 3 ) )
571 {
572 /* No startcode found.. */
573 break;
574 }
575 p_buffer += 3;
576 i_buffer -= 3;
577
578 const int i_nal_type = p_buffer[0]&0x1f;
579
580 i_size = i_buffer;
581 for( i_offset = 0; i_offset+2 < i_buffer ; i_offset++)
582 {
583 if( !memcmp(p_buffer + i_offset, "\x00\x00\x01", 3 ) )
584 {
585 /* we found another startcode */
586 while( i_offset > 0 && 0 == p_buffer[ i_offset - 1 ] )
587 i_offset--;
588 i_size = i_offset;
589 break;
590 }
591 }
592
593 if( i_size == 0 )
594 {
595 /* No-info found in nal */
596 continue;
597 }
598
599 if( i_nal_type == 7 )
600 {
601 free( p_64_sps );
602 p_64_sps = vlc_b64_encode_binary( p_buffer, i_size );
603 /* XXX: nothing ensures that i_size >= 4 ?? */
604 sprintf_hexa( hexa, &p_buffer[1], 3 );
605 }
606 else if( i_nal_type == 8 )
607 {
608 free( p_64_pps );
609 p_64_pps = vlc_b64_encode_binary( p_buffer, i_size );
610 }
611 i_buffer -= i_size;
612 p_buffer += i_size;
613 }
614 /* */
615 if( p_64_sps && p_64_pps )
616 {
617 if( asprintf( &p_es->psz_fmtp,
618 "packetization-mode=1;profile-level-id=%s;"
619 "sprop-parameter-sets=%s,%s;", hexa, p_64_sps,
620 p_64_pps ) < 0 )
621 {
622 free( p_64_sps );
623 free( p_64_pps );
624 free( psz_urlc );
625 free( p_es );
626 return VLC_ENOMEM;
627 }
628 }
629 free( p_64_sps );
630 free( p_64_pps );
631 }
632 if( !p_es->psz_fmtp )
633 p_es->psz_fmtp = strdup( "packetization-mode=1" );
634 break;
635 case VLC_CODEC_MP4V:
636 p_es->psz_ptname = "MP4V-ES";
637 if( p_fmt->i_extra > 0 )
638 {
639 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
640 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
641 if( asprintf( &p_es->psz_fmtp,
642 "profile-level-id=3; config=%s;", p_hexa ) == -1 )
643 p_es->psz_fmtp = NULL;
644 free( p_hexa );
645 }
646 break;
647 case VLC_CODEC_MP4A:
648 p_es->psz_ptname = "mpeg4-generic";
649 p_es->i_clock_rate = p_fmt->audio.i_rate;
650 if( p_fmt->i_extra > 0 )
651 {
652 char *p_hexa = malloc( 2 * p_fmt->i_extra + 1 );
653 sprintf_hexa( p_hexa, p_fmt->p_extra, p_fmt->i_extra );
654 if( asprintf( &p_es->psz_fmtp,
655 "streamtype=5; profile-level-id=15; mode=AAC-hbr; "
656 "config=%s; SizeLength=13;IndexLength=3; "
657 "IndexDeltaLength=3; Profile=1;", p_hexa ) == -1 )
658 p_es->psz_fmtp = NULL;
659 free( p_hexa );
660 }
661 break;
662 case VLC_FOURCC( 'm', 'p', '2', 't' ):
663 p_media->psz_mux = "ts";
664 p_es->i_payload_type = 33;
665 p_es->psz_ptname = "MP2T";
666 break;
667 case VLC_FOURCC( 'm', 'p', '2', 'p' ):
668 p_media->psz_mux = "ps";
669 p_es->psz_ptname = "MP2P";
670 break;
671 case VLC_CODEC_AMR_NB:
672 p_es->psz_ptname = "AMR";
673 p_es->i_clock_rate = 8000;
674 if(p_fmt->audio.i_channels == 2 )
675 p_es->i_channels = 2;
676 p_es->psz_fmtp = strdup( "octet-align=1" );
677 break;
678 case VLC_CODEC_AMR_WB:
679 p_es->psz_ptname = "AMR-WB";
680 p_es->i_clock_rate = 16000;
681 if(p_fmt->audio.i_channels == 2 )
682 p_es->i_channels = 2;
683 p_es->psz_fmtp = strdup( "octet-align=1" );
684 break;
685
686 default:
687 msg_Err( p_vod, "cannot add this stream (unsupported "
688 "codec: %4.4s)", (char*)&p_fmt->i_codec );
689 free( psz_urlc );
690 free( p_es );
691 return VLC_EGENERIC;
692 }
693
694 p_es->p_rtsp_url =
695 httpd_UrlNewUnique( p_vod->p_sys->p_rtsp_host, psz_urlc, NULL, NULL,
696 NULL );
697
698 if( !p_es->p_rtsp_url )
699 {
700 msg_Err( p_vod, "cannot create RTSP url (%s)", psz_urlc );
701 free( psz_urlc );
702 free( p_es );
703 return VLC_EGENERIC;
704 }
705 free( psz_urlc );
706
707 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_SETUP,
708 RtspCallbackES, (void*)p_es );
709 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_TEARDOWN,
710 RtspCallbackES, (void*)p_es );
711 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PLAY,
712 RtspCallbackES, (void*)p_es );
713 httpd_UrlCatch( p_es->p_rtsp_url, HTTPD_MSG_PAUSE,
714 RtspCallbackES, (void*)p_es );
715
716 es_format_Copy( &p_es->fmt, p_fmt );
717 p_es->p_vod = p_vod;
718 p_es->p_media = p_media;
719
720 vlc_mutex_lock( &p_media->lock );
721 TAB_APPEND( p_media->i_es, p_media->es, p_es );
722 vlc_mutex_unlock( &p_media->lock );
723
724 return VLC_SUCCESS;
725 }
726
727 static void MediaDelES( vod_t *p_vod, vod_media_t *p_media, es_format_t *p_fmt)
728 {
729 media_es_t *p_es = NULL;
730
731 /* Find the ES */
732 for( int i = 0; i < p_media->i_es; i++ )
733 {
734 if( p_media->es[i]->fmt.i_cat == p_fmt->i_cat &&
735 p_media->es[i]->fmt.i_codec == p_fmt->i_codec &&
736 p_media->es[i]->fmt.i_id == p_fmt->i_id )
737 {
738 p_es = p_media->es[i];
739 }
740 }
741 if( !p_es ) return;
742
743 msg_Dbg( p_vod, " - Removing ES %4.4s", (char *)&p_fmt->i_codec );
744
745 vlc_mutex_lock( &p_media->lock );
746 TAB_REMOVE( p_media->i_es, p_media->es, p_es );
747 vlc_mutex_unlock( &p_media->lock );
748
749 free( p_es->psz_fmtp );
750
751 if( p_es->p_rtsp_url ) httpd_UrlDelete( p_es->p_rtsp_url );
752 es_format_Clean( &p_es->fmt );
753 free( p_es );
754 }
755
756 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,
757 double f_arg, const char *psz_arg )
758 {
759 rtsp_cmd_t cmd;
760 block_t *p_cmd;
761
762 memset( &cmd, 0, sizeof(cmd) );
763 cmd.i_type = i_type;
764 cmd.p_media = p_media;
765 if( p_media )
766 cmd.i_media_id = p_media->id;
767 if( psz_session )
768 cmd.psz_session = strdup(psz_session);
769 cmd.i_arg = i_arg;
770 cmd.f_arg = f_arg;
771 if( psz_arg )
772 cmd.psz_arg = strdup(psz_arg);
773
774 p_cmd = block_New( p_vod, sizeof(rtsp_cmd_t) );
775 memcpy( p_cmd->p_buffer, &cmd, sizeof(cmd) );
776
777 block_FifoPut( p_vod->p_sys->p_fifo_cmd, p_cmd );
778 }
779
780 static void* CommandThread( void *obj )
781 {
782 vod_t *p_vod = (vod_t*)obj;
783 vod_sys_t *p_sys = p_vod->p_sys;
784 int canc = vlc_savecancel ();
785
786 for( ;; )
787 {
788 block_t *p_block_cmd = block_FifoGet( p_sys->p_fifo_cmd );
789 rtsp_cmd_t cmd;
790 vod_media_t *p_media = NULL;
791 int i;
792
793 if( !p_block_cmd )
794 break;
795
796 memcpy( &cmd, p_block_cmd->p_buffer, sizeof(cmd) );
797 block_Release( p_block_cmd );
798
799 if( cmd.i_type == RTSP_CMD_TYPE_NONE )
800 break;
801
802 if ( cmd.i_type == RTSP_CMD_TYPE_ADD )
803 {
804 TAB_APPEND( p_sys->i_media, p_sys->media, cmd.p_media );
805 goto next;
806 }
807
808 if ( cmd.i_type == RTSP_CMD_TYPE_DEL )
809 {
810 MediaDel(p_vod, cmd.p_media);
811 goto next;
812 }
813
814 /* */
815 for( i = 0; i < p_sys->i_media; i++ )
816 {
817 if( p_sys->media[i]->id == cmd.i_media_id )
818 break;
819 }
820 if( i >= p_sys->i_media )
821 {
822 goto next;
823 }
824 p_media = p_sys->media[i];
825
826 switch( cmd.i_type )
827 {
828 case RTSP_CMD_TYPE_PLAY:
829 cmd.i_arg = -1;
830 vod_MediaControl( p_vod, p_media, cmd.psz_session,
831 VOD_MEDIA_PLAY, cmd.psz_arg, &cmd.i_arg );
832 break;
833 case RTSP_CMD_TYPE_PAUSE:
834 cmd.i_arg = -1;
835 vod_MediaControl( p_vod, p_media, cmd.psz_session,
836 VOD_MEDIA_PAUSE, &cmd.i_arg );
837 break;
838
839 case RTSP_CMD_TYPE_STOP:
840 vod_MediaControl( p_vod, p_media, cmd.psz_session, VOD_MEDIA_STOP );
841 break;
842
843 case RTSP_CMD_TYPE_SEEK:
844 vod_MediaControl( p_vod, p_media, cmd.psz_session,
845 VOD_MEDIA_SEEK, cmd.i_arg );
846 break;
847
848 case RTSP_CMD_TYPE_REWIND:
849 vod_MediaControl( p_vod, p_media, cmd.psz_session,
850 VOD_MEDIA_REWIND, cmd.f_arg );
851 break;
852
853 case RTSP_CMD_TYPE_FORWARD:
854 vod_MediaControl( p_vod, p_media, cmd.psz_session,
855 VOD_MEDIA_FORWARD, cmd.f_arg );
856 break;
857
858 default:
859 break;
860 }
861
862 next:
863 free( cmd.psz_session );
864 free( cmd.psz_arg );
865 }
866
867 vlc_restorecancel (canc);
868 return NULL;
869 }
870
871 /****************************************************************************
872 * RTSP server implementation
873 ****************************************************************************/
874 static rtsp_client_t *RtspClientNew( vod_media_t *p_media, char *psz_session )
875 {
876 rtsp_client_t *p_rtsp = calloc( 1, sizeof(rtsp_client_t) );
877
878 if( !p_rtsp )
879 return NULL;
880 p_rtsp->es = 0;
881
882 p_rtsp->psz_session = psz_session;
883 TAB_APPEND( p_media->i_rtsp, p_media->rtsp, p_rtsp );
884
885 p_media->p_vod->p_sys->i_connections++;
886 msg_Dbg( p_media->p_vod, "new session: %s, connections: %d",
887 psz_session, p_media->p_vod->p_sys->i_throttle_users );
888
889 return p_rtsp;
890 }
891
892 static rtsp_client_t *RtspClientGet( vod_media_t *p_media, const char *psz_session )
893 {
894 for( int i = 0; psz_session && i < p_media->i_rtsp; i++ )
895 {
896 if( !strcmp( p_media->rtsp[i]->psz_session, psz_session ) )
897 return p_media->rtsp[i];
898 }
899
900 return NULL;
901 }
902
903 static void RtspClientDel( vod_media_t *p_media, rtsp_client_t *p_rtsp )
904 {
905 p_media->p_vod->p_sys->i_connections--;
906 msg_Dbg( p_media->p_vod, "closing session: %s, connections: %d",
907 p_rtsp->psz_session, p_media->p_vod->p_sys->i_throttle_users );
908
909 while( p_rtsp->i_es )
910 {
911 p_rtsp->i_es--;
912 free( p_rtsp->es[p_rtsp->i_es] );
913 }
914 free( p_rtsp->es );
915
916 TAB_REMOVE( p_media->i_rtsp, p_media->rtsp, p_rtsp );
917
918 free( p_rtsp->psz_session );
919 free( p_rtsp );
920 }
921
922
923 static int64_t ParseNPT (const char *str)
924 {
925 locale_t loc = newlocale (LC_NUMERIC_MASK, "C", NULL);
926 locale_t oldloc = uselocale (loc);
927 unsigned hour, min;
928 float sec;
929
930 if (sscanf (str, "%u:%u:%f", &hour, &min, &sec) == 3)
931 sec += ((hour * 60) + min) * 60;
932 else
933 if (sscanf (str, "%f", &sec) != 1)
934 sec = 0.;
935
936 if (loc != (locale_t)0)
937 {
938 uselocale (oldloc);
939 freelocale (loc);
940 }
941 return sec * CLOCK_FREQ;
942 }
943
944
945 static int RtspCallback( httpd_callback_sys_t *p_args, httpd_client_t *cl,
946 httpd_message_t *answer, const httpd_message_t *query )
947 {
948 vod_media_t *p_media = (vod_media_t*)p_args;
949 vod_t *p_vod = p_media->p_vod;
950 const char *psz_transport = NULL;
951 const char *psz_playnow = NULL; /* support option: x-playNow */
952 const char *psz_session = NULL;
953 const char *psz_cseq = NULL;
954 rtsp_client_t *p_rtsp;
955 int i_cseq = 0;
956
957 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
958
959 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
960
961 answer->i_proto = HTTPD_PROTO_RTSP;
962 answer->i_version = query->i_version;
963 answer->i_type = HTTPD_MSG_ANSWER;
964 answer->i_body = 0;
965 answer->p_body = NULL;
966
967 switch( query->i_type )
968 {
969 case HTTPD_MSG_SETUP:
970 {
971 psz_playnow = httpd_MsgGet( query, "x-playNow" );
972 psz_transport = httpd_MsgGet( query, "Transport" );
973 if( psz_transport == NULL )
974 {
975 answer->i_status = 400;
976 break;
977 }
978 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
979
980 if( strstr( psz_transport, "unicast" ) &&
981 strstr( psz_transport, "client_port=" ) )
982 {
983 rtsp_client_t *p_rtsp = NULL;
984 char ip[NI_MAXNUMERICHOST];
985 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
986 strlen("client_port=") );
987
988 if( strstr( psz_transport, "MP2T/H2221/UDP" ) ||
989 strstr( psz_transport, "RAW/RAW/UDP" ) )
990 {
991 p_media->psz_mux = p_vod->p_sys->psz_raw_mux;
992 p_media->b_raw = true;
993 }
994
995 if( httpd_ClientIP( cl, ip ) == NULL )
996 {
997 answer->i_status = 500;
998 answer->i_body = 0;
999 answer->p_body = NULL;
1000 break;
1001 }
1002
1003 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1004 ip, i_port );
1005
1006 psz_session = httpd_MsgGet( query, "Session" );
1007 if( !psz_session || !*psz_session )
1008 {
1009 char *psz_new;
1010 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1011 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1012 {
1013 answer->i_status = 503;
1014 answer->i_body = 0;
1015 answer->p_body = NULL;
1016 break;
1017 }
1018 #warning Should use secure randomness here! (spoofing risk)
1019 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1020 return VLC_ENOMEM;
1021 psz_session = psz_new;
1022
1023 p_rtsp = RtspClientNew( p_media, psz_new );
1024 if( !p_rtsp )
1025 {
1026 answer->i_status = 454;
1027 answer->i_body = 0;
1028 answer->p_body = NULL;
1029 break;
1030 }
1031 }
1032 else
1033 {
1034 p_rtsp = RtspClientGet( p_media, psz_session );
1035 if( !p_rtsp )
1036 {
1037 answer->i_status = 454;
1038 answer->i_body = 0;
1039 answer->p_body = NULL;
1040 break;
1041 }
1042 }
1043
1044 answer->i_status = 200;
1045 answer->i_body = 0;
1046 answer->p_body = NULL;
1047
1048 if( p_media->b_raw )
1049 {
1050 p_rtsp->i_port_raw = i_port;
1051
1052 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1053 {
1054 httpd_MsgAdd( answer, "Transport",
1055 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1056 i_port, i_port + 1 );
1057 }
1058 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1059 {
1060 httpd_MsgAdd( answer, "Transport",
1061 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1062 i_port, i_port + 1 );
1063 }
1064 }
1065 else
1066 httpd_MsgAdd( answer, "Transport",
1067 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1068 i_port, i_port + 1 );
1069 }
1070 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1071 {
1072 answer->i_status = 461;
1073 answer->i_body = 0;
1074 answer->p_body = NULL;
1075 }
1076
1077 /* Intentional fall-through on x-playNow option in RTSP request */
1078 if( !psz_playnow )
1079 break;
1080 }
1081
1082 case HTTPD_MSG_PLAY:
1083 {
1084 char *psz_output, ip[NI_MAXNUMERICHOST];
1085 int i_port_audio = 0, i_port_video = 0;
1086
1087 /* for now only multicast so easy */
1088 if( !psz_playnow )
1089 {
1090 answer->i_status = 200;
1091 answer->i_body = 0;
1092 answer->p_body = NULL;
1093 }
1094
1095 if( !psz_session )
1096 psz_session = httpd_MsgGet( query, "Session" );
1097 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1098
1099 p_rtsp = RtspClientGet( p_media, psz_session );
1100 if( !p_rtsp )
1101 {
1102 answer->i_status = 500;
1103 answer->i_body = 0;
1104 answer->p_body = NULL;
1105 break;
1106 }
1107
1108 if( p_rtsp->b_playing )
1109 {
1110 const char *psz_position = httpd_MsgGet( query, "Range" );
1111 const char *psz_scale = httpd_MsgGet( query, "Scale" );
1112 if( psz_position )
1113 psz_position = strstr( psz_position, "npt=" );
1114 if( psz_position && !psz_scale )
1115 {
1116 int64_t i_time = ParseNPT (psz_position + 4);
1117 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1118 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1119 psz_session, i_time, 0.0, NULL );
1120 }
1121 else if( psz_scale )
1122 {
1123 double f_scale = 0.0;
1124 char *end;
1125
1126 f_scale = us_strtod( psz_scale, &end );
1127 if( end > psz_scale )
1128 {
1129 f_scale = (f_scale * 30.0);
1130 if( psz_scale[0] == '-' ) /* rewind */
1131 {
1132 msg_Dbg( p_vod, "rewind request: %s", psz_scale );
1133 CommandPush( p_vod, RTSP_CMD_TYPE_REWIND, p_media,
1134 psz_session, 0, f_scale, NULL );
1135 }
1136 else if(psz_scale[0] != '1' ) /* fast-forward */
1137 {
1138 msg_Dbg( p_vod, "fastforward request: %s",
1139 psz_scale );
1140 CommandPush( p_vod, RTSP_CMD_TYPE_FORWARD, p_media,
1141 psz_session, 0, f_scale, NULL );
1142 }
1143 }
1144 }
1145 /* unpause, in case it's paused */
1146 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1147 0, 0.0, "" );
1148 break;
1149 }
1150
1151 if( httpd_ClientIP( cl, ip ) == NULL ) break;
1152
1153 p_rtsp->b_playing = true;
1154
1155 /* FIXME for != 1 video and 1 audio */
1156 for( int i = 0; i < p_rtsp->i_es; i++ )
1157 {
1158 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == AUDIO_ES )
1159 i_port_audio = p_rtsp->es[i]->i_port;
1160 if( p_rtsp->es[i]->p_media_es->fmt.i_cat == VIDEO_ES )
1161 i_port_video = p_rtsp->es[i]->i_port;
1162 }
1163
1164 if( p_media->psz_mux )
1165 {
1166 if( p_media->b_raw )
1167 {
1168 if( asprintf( &psz_output,
1169 "std{access=udp,dst=%s:%i,mux=%s}",
1170 ip, p_rtsp->i_port_raw, p_media->psz_mux ) < 0 )
1171 return VLC_ENOMEM;
1172 }
1173 else
1174 {
1175 if( asprintf( &psz_output,
1176 "rtp{dst=%s,port=%i,mux=%s}",
1177 ip, i_port_video, p_media->psz_mux ) < 0 )
1178 return VLC_ENOMEM;
1179 }
1180 }
1181 else
1182 {
1183 if( asprintf( &psz_output,
1184 "rtp{dst=%s,port-video=%i,port-audio=%i}",
1185 ip, i_port_video, i_port_audio ) < 0 )
1186 return VLC_ENOMEM;
1187 }
1188
1189 CommandPush( p_vod, RTSP_CMD_TYPE_PLAY, p_media, psz_session,
1190 0, 0.0, psz_output );
1191 free( psz_output );
1192 break;
1193 }
1194
1195 case HTTPD_MSG_DESCRIBE:
1196 {
1197 char *psz_sdp =
1198 SDPGenerate( p_media, cl );
1199
1200 if( psz_sdp != NULL )
1201 {
1202 answer->i_status = 200;
1203 httpd_MsgAdd( answer, "Content-type", "%s",
1204 "application/sdp" );
1205
1206 answer->p_body = (uint8_t *)psz_sdp;
1207 answer->i_body = strlen( psz_sdp );
1208 }
1209 else
1210 {
1211 answer->i_status = 500;
1212 answer->p_body = NULL;
1213 answer->i_body = 0;
1214 }
1215 break;
1216 }
1217
1218 case HTTPD_MSG_PAUSE:
1219 psz_session = httpd_MsgGet( query, "Session" );
1220 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1221
1222 p_rtsp = RtspClientGet( p_media, psz_session );
1223 if( !p_rtsp ) break;
1224
1225 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1226 0, 0.0, NULL );
1227
1228 answer->i_status = 200;
1229 answer->i_body = 0;
1230 answer->p_body = NULL;
1231 break;
1232
1233 case HTTPD_MSG_TEARDOWN:
1234 /* for now only multicast so easy again */
1235 answer->i_status = 200;
1236 answer->i_body = 0;
1237 answer->p_body = NULL;
1238
1239 psz_session = httpd_MsgGet( query, "Session" );
1240 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1241
1242 p_rtsp = RtspClientGet( p_media, psz_session );
1243 if( !p_rtsp ) break;
1244
1245 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1246 0, 0.0, NULL );
1247 RtspClientDel( p_media, p_rtsp );
1248 break;
1249
1250 case HTTPD_MSG_GETPARAMETER:
1251 answer->i_status = 200;
1252 answer->i_body = 0;
1253 answer->p_body = NULL;
1254 break;
1255
1256 default:
1257 return VLC_EGENERIC;
1258 }
1259
1260 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1261 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1262 psz_cseq = httpd_MsgGet( query, "Cseq" );
1263 psz_cseq ? i_cseq = atoi( psz_cseq ) : 0;
1264 httpd_MsgAdd( answer, "CSeq", "%d", i_cseq );
1265 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1266
1267 if( psz_session )
1268 {
1269 if( p_media->p_vod->p_sys->i_session_timeout >= 0 )
1270 httpd_MsgAdd( answer, "Session", "%s;timeout=%i", psz_session,
1271 p_media->p_vod->p_sys->i_session_timeout );
1272 else
1273 httpd_MsgAdd( answer, "Session", "%s", psz_session );
1274 }
1275
1276 return VLC_SUCCESS;
1277 }
1278
1279 static int RtspCallbackES( httpd_callback_sys_t *p_args, httpd_client_t *cl,
1280 httpd_message_t *answer,
1281 const httpd_message_t *query )
1282 {
1283 media_es_t *p_es = (media_es_t*)p_args;
1284 vod_media_t *p_media = p_es->p_media;
1285 vod_t *p_vod = p_media->p_vod;
1286 rtsp_client_t *p_rtsp = NULL;
1287 const char *psz_transport = NULL;
1288 const char *psz_playnow = NULL; /* support option: x-playNow */
1289 const char *psz_session = NULL;
1290 const char *psz_position = NULL;
1291 const char *psz_cseq = NULL;
1292 int i_cseq = 0;
1293
1294 if( answer == NULL || query == NULL ) return VLC_SUCCESS;
1295
1296 msg_Dbg( p_vod, "RtspCallback query: type=%d", query->i_type );
1297
1298 answer->i_proto = HTTPD_PROTO_RTSP;
1299 answer->i_version = query->i_version;
1300 answer->i_type = HTTPD_MSG_ANSWER;
1301 answer->i_body = 0;
1302 answer->p_body = NULL;
1303
1304 switch( query->i_type )
1305 {
1306 case HTTPD_MSG_SETUP:
1307 psz_playnow = httpd_MsgGet( query, "x-playNow" );
1308 psz_transport = httpd_MsgGet( query, "Transport" );
1309
1310 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: transport=%s", psz_transport );
1311
1312 if( strstr( psz_transport, "unicast" ) &&
1313 strstr( psz_transport, "client_port=" ) )
1314 {
1315 rtsp_client_t *p_rtsp = NULL;
1316 rtsp_client_es_t *p_rtsp_es = NULL;
1317 char ip[NI_MAXNUMERICHOST];
1318 int i_port = atoi( strstr( psz_transport, "client_port=" ) +
1319 strlen("client_port=") );
1320
1321 if( httpd_ClientIP( cl, ip ) == NULL )
1322 {
1323 answer->i_status = 500;
1324 answer->i_body = 0;
1325 answer->p_body = NULL;
1326 break;
1327 }
1328
1329 msg_Dbg( p_vod, "HTTPD_MSG_SETUP: unicast ip=%s port=%d",
1330 ip, i_port );
1331
1332 psz_session = httpd_MsgGet( query, "Session" );
1333 if( !psz_session || !*psz_session )
1334 {
1335 char *psz_new;
1336 if( ( p_vod->p_sys->i_throttle_users > 0 ) &&
1337 ( p_vod->p_sys->i_connections >= p_vod->p_sys->i_throttle_users ) )
1338 {
1339 answer->i_status = 503;
1340 answer->i_body = 0;
1341 answer->p_body = NULL;
1342 break;
1343 }
1344 #warning Session ID should be securely random (spoofing risk)
1345 if( asprintf( &psz_new, "%lu", vlc_mrand48() ) < 0 )
1346 return VLC_ENOMEM;
1347 psz_session = psz_new;
1348
1349 p_rtsp = RtspClientNew( p_media, psz_new );
1350 if( !p_rtsp )
1351 {
1352 answer->i_status = 454;
1353 answer->i_body = 0;
1354 answer->p_body = NULL;
1355 break;
1356 }
1357 }
1358 else
1359 {
1360 p_rtsp = RtspClientGet( p_media, psz_session );
1361 if( !p_rtsp )
1362 {
1363 answer->i_status = 454;
1364 answer->i_body = 0;
1365 answer->p_body = NULL;
1366 break;
1367 }
1368 }
1369
1370 p_rtsp_es = malloc( sizeof(rtsp_client_es_t) );
1371 if( !p_rtsp_es )
1372 {
1373 answer->i_status = 500;
1374 answer->i_body = 0;
1375 answer->p_body = NULL;
1376 break;
1377 }
1378 p_rtsp_es->i_port = i_port;
1379 p_rtsp_es->p_media_es = p_es;
1380 TAB_APPEND( p_rtsp->i_es, p_rtsp->es, p_rtsp_es );
1381
1382 answer->i_status = 200;
1383 answer->i_body = 0;
1384 answer->p_body = NULL;
1385
1386 if( p_media->b_raw )
1387 {
1388 if( strstr( psz_transport, "MP2T/H2221/UDP" ) )
1389 {
1390 httpd_MsgAdd( answer, "Transport",
1391 "MP2T/H2221/UDP;unicast;client_port=%d-%d",
1392 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1393 }
1394 else if( strstr( psz_transport, "RAW/RAW/UDP" ) )
1395 {
1396 httpd_MsgAdd( answer, "Transport",
1397 "RAW/RAW/UDP;unicast;client_port=%d-%d",
1398 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1399 }
1400 }
1401 else
1402 {
1403 httpd_MsgAdd( answer, "Transport",
1404 "RTP/AVP/UDP;unicast;client_port=%d-%d",
1405 p_rtsp_es->i_port, p_rtsp_es->i_port + 1 );
1406 }
1407 }
1408 else /* TODO strstr( psz_transport, "interleaved" ) ) */
1409 {
1410 answer->i_status = 461;
1411 answer->i_body = 0;
1412 answer->p_body = NULL;
1413 }
1414
1415 /* Intentional fall-through on x-playNow option in RTSP request */
1416 if( !psz_playnow )
1417 break;
1418
1419 case HTTPD_MSG_PLAY:
1420 /* This is kind of a kludge. Should we only support Aggregate
1421 * Operations ? */
1422 psz_session = httpd_MsgGet( query, "Session" );
1423 msg_Dbg( p_vod, "HTTPD_MSG_PLAY for session: %s", psz_session );
1424
1425 p_rtsp = RtspClientGet( p_media, psz_session );
1426
1427 psz_position = httpd_MsgGet( query, "Range" );
1428 if( psz_position ) psz_position = strstr( psz_position, "npt=" );
1429 if( psz_position )
1430 {
1431 int64_t i_time = ParseNPT (psz_position + 4);
1432 msg_Dbg( p_vod, "seeking request: %s", psz_position );
1433 CommandPush( p_vod, RTSP_CMD_TYPE_SEEK, p_media,
1434 psz_session, i_time, 0.0, NULL );
1435 }
1436
1437 if( !psz_playnow )
1438 {
1439 answer->i_status = 200;
1440 answer->i_body = 0;
1441 answer->p_body = NULL;
1442 }
1443 break;
1444
1445 case HTTPD_MSG_TEARDOWN:
1446 answer->i_status = 200;
1447 answer->i_body = 0;
1448 answer->p_body = NULL;
1449
1450 psz_session = httpd_MsgGet( query, "Session" );
1451 msg_Dbg( p_vod, "HTTPD_MSG_TEARDOWN for session: %s", psz_session);
1452
1453 p_rtsp = RtspClientGet( p_media, psz_session );
1454 if( !p_rtsp ) break;
1455
1456 for( int i = 0; i < p_rtsp->i_es; i++ )
1457 {
1458 if( p_rtsp->es[i]->p_media_es == p_es )
1459 {
1460 TAB_REMOVE( p_rtsp->i_es, p_rtsp->es, p_rtsp->es[i] );
1461 break;
1462 }
1463 }
1464
1465 if( !p_rtsp->i_es )
1466 {
1467 CommandPush( p_vod, RTSP_CMD_TYPE_STOP, p_media, psz_session,
1468 0, 0.0, NULL );
1469 RtspClientDel( p_media, p_rtsp );
1470 }
1471 break;
1472
1473 case HTTPD_MSG_PAUSE:
1474 /* This is kind of a kludge. Should we only support Aggregate
1475 * Operations ? */
1476 psz_session = httpd_MsgGet( query, "Session" );
1477 msg_Dbg( p_vod, "HTTPD_MSG_PAUSE for session: %s", psz_session );
1478
1479 p_rtsp = RtspClientGet( p_media, psz_session );
1480 if( !p_rtsp ) break;
1481
1482 CommandPush( p_vod, RTSP_CMD_TYPE_PAUSE, p_media, psz_session,
1483 0, 0.0, NULL );
1484
1485 answer->i_status = 200;
1486 answer->i_body = 0;
1487 answer->p_body = NULL;
1488 break;
1489
1490 default:
1491 return VLC_EGENERIC;
1492 break;
1493 }
1494
1495 httpd_MsgAdd( answer, "Server", "VLC/%s", VERSION );
1496 httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
1497 psz_cseq = httpd_MsgGet( query, "Cseq" );
1498 if (psz_cseq)
1499 i_cseq = atoi( psz_cseq );
1500 else
1501 i_cseq = 0;
1502 httpd_MsgAdd( answer, "Cseq", "%d", i_cseq );
1503 httpd_MsgAdd( answer, "Cache-Control", "%s", "no-cache" );
1504
1505 if( psz_session )
1506 httpd_MsgAdd( answer, "Session", "%s"/*;timeout=5*/, psz_session );
1507
1508 return VLC_SUCCESS;
1509 }
1510
1511 /*****************************************************************************
1512 * SDPGenerate: TODO
1513 * FIXME: need to be moved to a common place ?
1514 *****************************************************************************/
1515 static char *SDPGenerate( const vod_media_t *p_media, httpd_client_t *cl )
1516 {
1517 char *psz_sdp, ip[NI_MAXNUMERICHOST];
1518 const char *psz_control;
1519
1520 if( httpd_ServerIP( cl, ip ) == NULL )
1521 return NULL;
1522
1523 bool ipv6 = ( strchr( ip, ':' ) != NULL );
1524
1525 psz_control = ipv6 ? p_media->psz_rtsp_control_v6
1526 : p_media->psz_rtsp_control_v4;
1527
1528 /* Dummy destination address for RTSP */
1529 struct sockaddr_storage dst;
1530 socklen_t dstlen = ipv6 ? sizeof( struct sockaddr_in6 )
1531 : sizeof( struct sockaddr_in );
1532 memset (&dst, 0, dstlen);
1533 dst.ss_family = ipv6 ? AF_INET6 : AF_INET;
1534 #ifdef HAVE_SA_LEN
1535 dst.ss_len = dstlen;
1536 #endif
1537
1538 psz_sdp = vlc_sdp_Start( VLC_OBJECT( p_media->p_vod ), "sout-rtp-",
1539 NULL, 0, (struct sockaddr *)&dst, dstlen );
1540 if( psz_sdp == NULL )
1541 return NULL;
1542
1543 if( p_media->i_length > 0 )
1544 {
1545 lldiv_t d = lldiv( p_media->i_length / 1000, 1000 );
1546 sdp_AddAttribute( &psz_sdp, "range","npt=0-%lld.%03u", d.quot,
1547 (unsigned)d.rem );
1548 }
1549
1550 for( int i = 0; i < p_media->i_es; i++ )
1551 {
1552 media_es_t *p_es = p_media->es[i];
1553 const char *mime_major; /* major MIME type */
1554
1555 switch( p_es->fmt.i_cat )
1556 {
1557 case VIDEO_ES:
1558 mime_major = "video";
1559 break;
1560 case AUDIO_ES:
1561 mime_major = "audio";
1562 break;
1563 case SPU_ES:
1564 mime_major = "text";
1565 break;
1566 default:
1567 continue;
1568 }
1569
1570 sdp_AddMedia( &psz_sdp, mime_major, "RTP/AVP", 0 /* p_es->i_port */,
1571 p_es->i_payload_type, false, 0,
1572 p_es->psz_ptname, p_es->i_clock_rate, p_es->i_channels,
1573 p_es->psz_fmtp );
1574
1575 sdp_AddAttribute( &psz_sdp, "control", psz_control, ip, i );
1576 }
1577
1578 return psz_sdp;
1579 }
[GSoC_2011] OpenGL Interface for VLC