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live555: remove trailing whitespace
[vlc.git] / modules / access / live555.cpp
blob6f8c896292bfab2fddccf52c299797ade70fede7
1 /*****************************************************************************
2 * live555.cpp : LIVE555 Streaming Media support.
3 *****************************************************************************
4 * Copyright (C) 2003-2007 VLC authors and VideoLAN
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Derk-Jan Hartman <hartman at videolan. org>
9 * Derk-Jan Hartman <djhartman at m2x .dot. nl> for M2X
10 * Sébastien Escudier <sebastien-devel celeos eu>
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU Lesser General Public License as published by
14 * the Free Software Foundation; either version 2.1 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public License
23 * along with this program; if not, write to the Free Software Foundation,
24 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
26
27 /*****************************************************************************
28 * Preamble
29 *****************************************************************************/
30
31 #ifdef HAVE_CONFIG_H
32 # include "config.h"
33 #endif
34
35 #include <inttypes.h>
36
37 #include <vlc_common.h>
38 #include <vlc_plugin.h>
39 #include <vlc_input.h>
40 #include <vlc_demux.h>
41 #include <vlc_dialog.h>
42 #include <vlc_url.h>
43 #include <vlc_strings.h>
44 #include <vlc_interrupt.h>
45 #include <vlc_keystore.h>
46
47 #include <limits.h>
48 #include <assert.h>
49
50 #include <new>
51
52 #if defined( _WIN32 )
53 # include <winsock2.h>
54 #endif
55
56 #include <UsageEnvironment.hh>
57 #include <BasicUsageEnvironment.hh>
58 #include <GroupsockHelper.hh>
59 #include <liveMedia.hh>
60 #include <liveMedia_version.hh>
61 #include <Base64.hh>
62
63 extern "C" {
64 #include "../access/mms/asf.h" /* Who said ugly ? */
65 }
66
67 /*****************************************************************************
68 * Module descriptor
69 *****************************************************************************/
70 static int Open ( vlc_object_t * );
71 static void Close( vlc_object_t * );
72
73 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
74 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and nonstandard " \
75 "dialect of RTSP. With this parameter VLC will try this dialect, but "\
76 "then it cannot connect to normal RTSP servers." )
77
78 #define WMSERVER_TEXT N_("WMServer RTSP dialect")
79 #define WMSERVER_LONGTEXT N_("WMServer uses a nonstandard dialect " \
80 "of RTSP. Selecting this parameter will tell VLC to assume some " \
81 "options contrary to RFC 2326 guidelines.")
82
83 #define USER_TEXT N_("Username")
84 #define USER_LONGTEXT N_("Sets the username for the connection, " \
85 "if no username or password are set in the url.")
86 #define PASS_TEXT N_("Password")
87 #define PASS_LONGTEXT N_("Sets the password for the connection, " \
88 "if no username or password are set in the url.")
89 #define FRAME_BUFFER_SIZE_TEXT N_("RTSP frame buffer size")
90 #define FRAME_BUFFER_SIZE_LONGTEXT N_("RTSP start frame buffer size of the video " \
91 "track, can be increased in case of broken pictures due " \
92 "to too small buffer.")
93 #define DEFAULT_FRAME_BUFFER_SIZE 250000
94
95 vlc_module_begin ()
96 set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
97 set_capability( "demux", 50 )
98 set_shortname( "RTP/RTSP")
99 set_callbacks( Open, Close )
100 add_shortcut( "live", "livedotcom" )
101 set_category( CAT_INPUT )
102 set_subcategory( SUBCAT_INPUT_DEMUX )
103
104 add_submodule ()
105 set_description( N_("RTSP/RTP access and demux") )
106 add_shortcut( "rtsp", "pnm", "live", "livedotcom" )
107 set_capability( "access", 300 )
108 set_callbacks( Open, Close )
109 add_bool( "rtsp-tcp", false,
110 N_("Use RTP over RTSP (TCP)"),
111 N_("Use RTP over RTSP (TCP)"), true )
112 change_safe()
113 add_integer( "rtp-client-port", -1,
114 N_("Client port"),
115 N_("Port to use for the RTP source of the session"), true )
116 add_bool( "rtsp-mcast", false,
117 N_("Force multicast RTP via RTSP"),
118 N_("Force multicast RTP via RTSP"), true )
119 change_safe()
120 add_bool( "rtsp-http", false,
121 N_("Tunnel RTSP and RTP over HTTP"),
122 N_("Tunnel RTSP and RTP over HTTP"), true )
123 change_safe()
124 add_integer( "rtsp-http-port", 80,
125 N_("HTTP tunnel port"),
126 N_("Port to use for tunneling the RTSP/RTP over HTTP."),
127 true )
128 add_bool( "rtsp-kasenna", false, KASENNA_TEXT,
129 KASENNA_LONGTEXT, true )
130 change_safe()
131 add_bool( "rtsp-wmserver", false, WMSERVER_TEXT,
132 WMSERVER_LONGTEXT, true)
133 change_safe()
134 add_string( "rtsp-user", NULL, USER_TEXT,
135 USER_LONGTEXT, true )
136 change_safe()
137 add_password("rtsp-pwd", NULL, PASS_TEXT, PASS_LONGTEXT)
138 add_integer( "rtsp-frame-buffer-size", DEFAULT_FRAME_BUFFER_SIZE,
139 FRAME_BUFFER_SIZE_TEXT, FRAME_BUFFER_SIZE_LONGTEXT,
140 true )
141 vlc_module_end ()
142
143
144 /*****************************************************************************
145 * Local prototypes
146 *****************************************************************************/
147
148 typedef struct
149 {
150 demux_t *p_demux;
151 MediaSubsession *sub;
152
153 es_format_t fmt;
154 es_out_id_t *p_es;
155
156 enum
157 {
158 SINGLE_STREAM,
159 MULTIPLEXED_STREAM,
160 QUICKTIME_STREAM,
161 ASF_STREAM
162 } format;
163
164 block_t *p_asf_block;
165 bool b_discard_trunc;
166 vlc_demux_chained_t *p_out_muxed; /* for muxed stream */
167
168 uint8_t *p_buffer;
169 unsigned int i_buffer;
170
171 bool b_rtcp_sync;
172 bool b_flushing_discontinuity;
173 int i_next_block_flags;
174 char waiting;
175 int64_t i_lastpts;
176 int64_t i_pcr;
177 double f_npt;
178
179 enum
180 {
181 STATE_NONE,
182 STATE_SELECTED,
183 STATE_IGNORED,
184 STATE_TEARDOWN,
185 } state;
186
187 } live_track_t;
188
189 class RTSPClientVlc;
190
191 #define CAP_RATE_CONTROL (1 << 1)
192 #define CAP_SUBSESSION_TEARDOWN (1 << 2)
193 #define CAP_SUBSESSION_PAUSE (1 << 3)
194 #define CAPS_DEFAULT CAP_RATE_CONTROL
195
196 struct demux_sys_t
197 {
198 char *p_sdp; /* XXX mallocated */
199 char *psz_pl_url; /* password-less URL */
200 vlc_url_t url;
201
202 MediaSession *ms;
203 TaskScheduler *scheduler;
204 UsageEnvironment *env ;
205 RTSPClientVlc *rtsp;
206 int capabilities; /* Server capabilities workaround */
207
208 /* */
209 int i_track;
210 live_track_t **track;
211
212 /* Weird formats */
213 asf_header_t asfh;
214 vlc_demux_chained_t *p_out_asf;
215 bool b_real;
216
217 /* */
218 mtime_t i_pcr; /* The clock */
219 bool b_rtcp_sync; /* At least one track received sync */
220 double f_npt;
221 double f_npt_length;
222 double f_npt_start;
223
224 /* timeout thread information */
225 vlc_timer_t timer;
226 vlc_mutex_t timeout_mutex; /* Serialise calls to live555 in timeout thread w.r.t. Demux()/Control() */
227
228 /* */
229 bool b_force_mcast;
230 bool b_multicast; /* if one of the tracks is multicasted */
231 bool b_no_data; /* if we never received any data */
232 int i_no_data_ti; /* consecutive number of TaskInterrupt */
233
234 char event_rtsp;
235 char event_data;
236
237 bool b_get_param; /* Does the server support GET_PARAMETER */
238 bool b_paused; /* Are we paused? */
239 bool b_error;
240 int i_live555_ret; /* live555 callback return code */
241
242 float f_seek_request;/* In case we receive a seek request while paused*/
243 };
244
245
246 class RTSPClientVlc : public RTSPClient
247 {
248 public:
249 RTSPClientVlc( UsageEnvironment& env, char const* rtspURL, int verbosityLevel,
250 char const* applicationName, portNumBits tunnelOverHTTPPortNum,
251 demux_sys_t *p_sys) :
252 RTSPClient( env, rtspURL, verbosityLevel, applicationName,
253 tunnelOverHTTPPortNum
254 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1373932800
255 , -1
256 #endif
257 )
258 {
259 this->p_sys = p_sys;
260 }
261 demux_sys_t *p_sys;
262 };
263
264 static int Demux ( demux_t * );
265 static int Control( demux_t *, int, va_list );
266
267 static int Connect ( demux_t * );
268 static int SessionsSetup( demux_t * );
269 static int Play ( demux_t *);
270 static int ParseASF ( demux_t * );
271 static int RollOverTcp ( demux_t * );
272
273 static void StreamRead ( void *, unsigned int, unsigned int,
274 struct timeval, unsigned int );
275 static void StreamClose ( void * );
276 static void TaskInterruptData( void * );
277 static void TaskInterruptRTSP( void * );
278
279 static void TimeoutPrevention( void * );
280
281 static unsigned char* parseH264ConfigStr( char const* configStr,
282 unsigned int& configSize );
283 static unsigned char* parseVorbisConfigStr( char const* configStr,
284 unsigned int& configSize );
285
286 static char *passwordLessURL( vlc_url_t *url );
287
288 #define PCR_OBS (CLOCK_FREQ / 4)
289 #define PCR_OFF PCR_OBS
290
291 /*****************************************************************************
292 * DemuxOpen:
293 *****************************************************************************/
294 static int Open ( vlc_object_t *p_this )
295 {
296 demux_t *p_demux = (demux_t*)p_this;
297 demux_sys_t *p_sys = NULL;
298
299 int i_return;
300 int i_error = VLC_EGENERIC;
301
302 if (p_demux->out == NULL)
303 return VLC_EGENERIC;
304
305 /* if the rtsp URL may contain a sat.ip fake DNS, bail-out early and
306 * let the SAT>IP module handle that */
307 if( !strncmp(p_demux->psz_location, "sat.ip", 6) )
308 {
309 msg_Err( p_demux, "SAT>IP server, bailing out");
310 return VLC_EGENERIC;
311 }
312 /* If satip-host is set on the item, we shall assume it is a rtsp for the
313 * SAT>IP module and bail-out early. */
314 char *psz_host = var_InheritString(p_demux, "satip-host");
315 if (psz_host != NULL) {
316 msg_Err( p_demux, "URL is for SAT>IP, bailing out");
317 free(psz_host);
318 return VLC_EGENERIC;
319 }
320
321 if( p_demux->s )
322 {
323 /* See if it looks like a SDP
324 v, o, s fields are mandatory and in this order */
325 const uint8_t *p_peek;
326 if( vlc_stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
327
328 if( memcmp( p_peek, "v=0\r\n", 5 ) &&
329 memcmp( p_peek, "v=0\n", 4 ) &&
330 ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
331 {
332 return VLC_EGENERIC;
333 }
334 }
335
336 p_demux->pf_demux = Demux;
337 p_demux->pf_control= Control;
338 p_demux->p_sys = p_sys = (demux_sys_t*)calloc( 1, sizeof( demux_sys_t ) );
339 if( !p_sys ) return VLC_ENOMEM;
340
341 if( vlc_timer_create(&p_sys->timer, TimeoutPrevention, p_demux) )
342 {
343 free( p_sys );
344 return VLC_ENOMEM;
345 }
346
347 msg_Dbg( p_demux, "version " LIVEMEDIA_LIBRARY_VERSION_STRING );
348
349 p_sys->capabilities = CAPS_DEFAULT;
350 if( var_GetBool( p_demux, "rtsp-kasenna" ) ||
351 var_GetBool( p_demux, "rtsp-wmserver" ) )
352 {
353 p_sys->capabilities &= ~CAP_RATE_CONTROL;
354 }
355
356 TAB_INIT( p_sys->i_track, p_sys->track );
357 p_sys->b_no_data = true;
358 p_sys->b_force_mcast = var_InheritBool( p_demux, "rtsp-mcast" );
359 p_sys->f_seek_request = -1;
360 vlc_mutex_init(&p_sys->timeout_mutex);
361
362 /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
363 vlc_UrlParse( &p_sys->url, p_demux->psz_url );
364
365 if( ( p_sys->psz_pl_url = passwordLessURL( &p_sys->url ) ) == NULL )
366 {
367 i_error = VLC_ENOMEM;
368 goto error;
369 }
370
371 if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
372 {
373 msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
374 goto error;
375 }
376 if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
377 {
378 msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
379 goto error;
380 }
381
382 if( p_demux->s != NULL )
383 {
384 char *p = p_sys->psz_pl_url;
385 while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
386 }
387
388 if( p_demux->s != NULL )
389 {
390 /* Gather the complete sdp file */
391 int i_sdp = 0;
392 int i_sdp_max = 1000;
393 uint8_t *p_sdp = (uint8_t*) malloc( i_sdp_max );
394
395 if( !p_sdp )
396 {
397 i_error = VLC_ENOMEM;
398 goto error;
399 }
400
401 for( ;; )
402 {
403 int i_read = vlc_stream_Read( p_demux->s, &p_sdp[i_sdp],
404 i_sdp_max - i_sdp - 1 );
405 if( i_read < 0 )
406 {
407 msg_Err( p_demux, "failed to read SDP" );
408 free( p_sdp );
409 goto error;
410 }
411
412 i_sdp += i_read;
413
414 if( i_read < i_sdp_max - i_sdp - 1 )
415 {
416 p_sdp[i_sdp] = '\0';
417 break;
418 }
419
420 i_sdp_max += 1000;
421 p_sdp = (uint8_t*)xrealloc( p_sdp, i_sdp_max );
422 }
423 p_sys->p_sdp = (char*)p_sdp;
424 }
425 else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
426 {
427 msg_Err( p_demux, "Failed to connect with %s", p_sys->psz_pl_url );
428 goto error;
429 }
430
431 if( p_sys->p_sdp == NULL )
432 {
433 msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
434 i_error = VLC_ENOMEM;
435 goto error;
436 }
437
438 if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
439 {
440 msg_Err( p_demux, "Nothing to play for %s", p_sys->psz_pl_url );
441 goto error;
442 }
443
444 if( p_sys->b_real ) goto error;
445
446 if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
447 goto error;
448
449 if( p_sys->p_out_asf && ParseASF( p_demux ) )
450 {
451 msg_Err( p_demux, "cannot find a usable asf header" );
452 /* TODO Clean tracks */
453 goto error;
454 }
455
456 if( p_sys->i_track <= 0 )
457 goto error;
458
459 return VLC_SUCCESS;
460
461 error:
462 Close( p_this );
463 return i_error;
464 }
465
466 /*****************************************************************************
467 * DemuxClose:
468 *****************************************************************************/
469 static void Close( vlc_object_t *p_this )
470 {
471 demux_t *p_demux = (demux_t*)p_this;
472 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
473
474 vlc_timer_destroy(p_sys->timer);
475
476 if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->sendTeardownCommand( *p_sys->ms, NULL );
477 if( p_sys->ms ) Medium::close( p_sys->ms );
478 if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
479 if( p_sys->env ) p_sys->env->reclaim();
480
481 for( int i = 0; i < p_sys->i_track; i++ )
482 {
483 live_track_t *tk = p_sys->track[i];
484
485 if( tk->p_out_muxed )
486 vlc_demux_chained_Delete( tk->p_out_muxed );
487 es_format_Clean( &tk->fmt );
488 free( tk->p_buffer );
489 free( tk );
490 }
491 TAB_CLEAN( p_sys->i_track, p_sys->track );
492 if( p_sys->p_out_asf )
493 vlc_demux_chained_Delete( p_sys->p_out_asf );
494 delete p_sys->scheduler;
495 free( p_sys->p_sdp );
496 free( p_sys->psz_pl_url );
497
498 vlc_UrlClean( &p_sys->url );
499 vlc_mutex_destroy(&p_sys->timeout_mutex);
500
501 free( p_sys );
502 }
503
504 static inline Boolean toBool( bool b ) { return b?True:False; } // silly, no?
505
506 static void default_live555_callback( RTSPClient* client, int result_code, char* result_string )
507 {
508 RTSPClientVlc *client_vlc = static_cast<RTSPClientVlc *> ( client );
509 demux_sys_t *p_sys = client_vlc->p_sys;
510 delete []result_string;
511 p_sys->i_live555_ret = result_code;
512 p_sys->b_error = p_sys->i_live555_ret != 0;
513 p_sys->event_rtsp = 1;
514 }
515
516 /* return true if the RTSP command succeeded */
517 static bool wait_Live555_response( demux_t *p_demux, int i_timeout = 0 /* ms */ )
518 {
519 TaskToken task;
520 demux_sys_t * p_sys = (demux_sys_t *)p_demux->p_sys;
521 p_sys->event_rtsp = 0;
522 if( i_timeout > 0 )
523 {
524 /* Create a task that will be called if we wait more than timeout ms */
525 task = p_sys->scheduler->scheduleDelayedTask( i_timeout*1000,
526 TaskInterruptRTSP,
527 p_demux );
528 }
529 p_sys->event_rtsp = 0;
530 p_sys->b_error = true;
531 p_sys->i_live555_ret = 0;
532 p_sys->scheduler->doEventLoop( &p_sys->event_rtsp );
533 //here, if b_error is true and i_live555_ret = 0 we didn't receive a response
534 if( i_timeout > 0 )
535 {
536 /* remove the task */
537 p_sys->scheduler->unscheduleDelayedTask( task );
538 }
539 return !p_sys->b_error;
540 }
541
542 static void continueAfterDESCRIBE( RTSPClient* client, int result_code,
543 char* result_string )
544 {
545 RTSPClientVlc *client_vlc = static_cast<RTSPClientVlc *> ( client );
546 demux_sys_t *p_sys = client_vlc->p_sys;
547 p_sys->i_live555_ret = result_code;
548 if ( result_code == 0 )
549 {
550 char* sdpDescription = result_string;
551 free( p_sys->p_sdp );
552 p_sys->p_sdp = NULL;
553 if( sdpDescription )
554 {
555 p_sys->p_sdp = strdup( sdpDescription );
556 p_sys->b_error = false;
557 }
558 }
559 else
560 p_sys->b_error = true;
561 delete[] result_string;
562 p_sys->event_rtsp = 1;
563 #ifdef VLC_PATCH_RTSPCLIENT_SERVERSTRING
564 if( client_vlc->serverString() )
565 {
566 if( !strncmp(client_vlc->serverString(), "Kasenna", 7) ||
567 !strncmp(client_vlc->serverString(), "WMServer", 8) )
568 p_sys->capabilities &= ~CAP_RATE_CONTROL;
569 if( !strncmp(client_vlc->serverString(), "VLC/", 4) )
570 p_sys->capabilities |= (CAP_SUBSESSION_TEARDOWN|CAP_SUBSESSION_PAUSE);
571 }
572 #endif
573 }
574
575 static void continueAfterOPTIONS( RTSPClient* client, int result_code,
576 char* result_string )
577 {
578 RTSPClientVlc *client_vlc = static_cast<RTSPClientVlc *> (client);
579 demux_sys_t *p_sys = client_vlc->p_sys;
580 p_sys->b_get_param =
581 // If OPTIONS fails, assume GET_PARAMETER is not supported but
582 // still continue on with the stream. Some servers (foscam)
583 // return 501/not implemented for OPTIONS.
584 result_code == 0
585 && result_string != NULL
586 && strstr( result_string, "GET_PARAMETER" ) != NULL;
587 client->sendDescribeCommand( continueAfterDESCRIBE );
588 delete[] result_string;
589 }
590
591 /*****************************************************************************
592 * Connect: connects to the RTSP server to setup the session DESCRIBE
593 *****************************************************************************/
594 static int Connect( demux_t *p_demux )
595 {
596 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
597 Authenticator authenticator;
598 vlc_credential credential;
599 const char *psz_user = NULL;
600 const char *psz_pwd = NULL;
601 int i_http_port = 0;
602 int i_ret = VLC_SUCCESS;
603 const int i_timeout = var_InheritInteger( p_demux, "ipv4-timeout" );
604
605 vlc_credential_init( &credential, &p_sys->url );
606
607 /* Credentials can be NULL since they may not be needed */
608 if( vlc_credential_get( &credential, p_demux, "rtsp-user", "rtsp-pwd",
609 NULL, NULL) )
610 {
611 psz_user = credential.psz_username;
612 psz_pwd = credential.psz_password;
613 }
614
615 createnew:
616 /* FIXME: This is naive and incorrect; it does not prevent the thread
617 * getting stuck in blocking socket operations. */
618 if( vlc_killed() )
619 {
620 i_ret = VLC_EGENERIC;
621 goto bailout;
622 }
623
624 if( var_CreateGetBool( p_demux, "rtsp-http" ) )
625 i_http_port = var_InheritInteger( p_demux, "rtsp-http-port" );
626
627 p_sys->rtsp = new (std::nothrow) RTSPClientVlc( *p_sys->env, p_sys->psz_pl_url,
628 var_InheritInteger( p_demux, "verbose" ) > 1 ? 1 : 0,
629 "LibVLC/" VERSION, i_http_port, p_sys );
630 if( !p_sys->rtsp )
631 {
632 msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
633 p_sys->env->getResultMsg() );
634 i_ret = VLC_EGENERIC;
635 goto bailout;
636 }
637
638 /* Kasenna enables KeepAlive by analysing the User-Agent string.
639 * Appending _KA to the string should be enough to enable this feature,
640 * however, there is a bug where the _KA doesn't get parsed from the
641 * default User-Agent as created by VLC/Live555 code. This is probably due
642 * to spaces in the string or the string being too long. Here we override
643 * the default string with a more compact version.
644 */
645 if( var_InheritBool( p_demux, "rtsp-kasenna" ))
646 {
647 p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
648 }
649
650 describe:
651 authenticator.setUsernameAndPassword( psz_user, psz_pwd );
652
653 p_sys->rtsp->sendOptionsCommand( &continueAfterOPTIONS, &authenticator );
654
655 if( !wait_Live555_response( p_demux, i_timeout ) )
656 {
657 int i_code = p_sys->i_live555_ret;
658 if( i_code == 401 )
659 {
660 msg_Dbg( p_demux, "authentication failed" );
661
662 if( vlc_credential_get( &credential, p_demux, "rtsp-user", "rtsp-pwd",
663 _("RTSP authentication"),
664 _("Please enter a valid login name and a password.") ) )
665 {
666 psz_user = credential.psz_username;
667 psz_pwd = credential.psz_password;
668 msg_Dbg( p_demux, "retrying with user=%s", psz_user );
669 goto describe;
670 }
671 }
672 else if( i_code > 0 && i_code != 404 && !var_GetBool( p_demux, "rtsp-http" ) )
673 {
674 /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
675 msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
676 var_SetBool( p_demux, "rtsp-http", true );
677 if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
678 p_sys->rtsp = NULL;
679 goto createnew;
680 }
681 else
682 {
683 if( i_code == 0 )
684 msg_Dbg( p_demux, "connection timeout" );
685 else
686 {
687 msg_Dbg( p_demux, "connection error %d", i_code );
688 if( i_code == 403 )
689 vlc_dialog_display_error( p_demux, _("RTSP connection failed"),
690 _("Access to the stream is denied by the server configuration.") );
691 }
692 if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
693 p_sys->rtsp = NULL;
694 }
695 i_ret = VLC_EGENERIC;
696 }
697 else
698 vlc_credential_store( &credential, p_demux );
699
700 bailout:
701 vlc_credential_clean( &credential );
702
703 return i_ret;
704 }
705
706 /*****************************************************************************
707 * SessionsSetup: prepares the subsessions and does the SETUP
708 *****************************************************************************/
709 static int SessionsSetup( demux_t *p_demux )
710 {
711 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
712 MediaSubsessionIterator *iter = NULL;
713 MediaSubsession *sub = NULL;
714
715 bool b_rtsp_tcp;
716 int i_client_port;
717 int i_return = VLC_SUCCESS;
718 unsigned int i_receive_buffer = 0;
719 int i_frame_buffer = DEFAULT_FRAME_BUFFER_SIZE;
720 unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
721 const char *p_sess_lang = NULL;
722 const char *p_lang;
723
724 b_rtsp_tcp = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
725 var_GetBool( p_demux, "rtsp-http" );
726 i_client_port = var_InheritInteger( p_demux, "rtp-client-port" );
727
728
729 /* Create the session from the SDP */
730 if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
731 {
732 msg_Err( p_demux, "Could not create the RTSP Session: %s",
733 p_sys->env->getResultMsg() );
734 return VLC_EGENERIC;
735 }
736
737 if( strcmp( p_sys->p_sdp, "m=" ) != 0 )
738 {
739 const char *p_sess_attr_end;
740
741 p_sess_attr_end = strstr( p_sys->p_sdp, "\nm=" );
742 if( !p_sess_attr_end )
743 p_sess_attr_end = strstr( p_sys->p_sdp, "\rm=" );
744
745 p_sess_lang = p_sess_attr_end ? strstr( p_sys->p_sdp, "a=lang:" ) : NULL;
746 if( p_sess_lang &&
747 p_sess_lang - p_sys->p_sdp > p_sess_attr_end - p_sys->p_sdp )
748 p_sess_lang = NULL;
749 }
750
751 /* Initialise each media subsession */
752 iter = new MediaSubsessionIterator( *p_sys->ms );
753 while( ( sub = iter->next() ) != NULL )
754 {
755 Boolean bInit;
756 live_track_t *tk;
757
758 /* Value taken from mplayer */
759 if( !strcmp( sub->mediumName(), "audio" ) )
760 i_receive_buffer = 100000;
761 else if( !strcmp( sub->mediumName(), "video" ) )
762 {
763 int i_var_buf_size = var_InheritInteger( p_demux, "rtsp-frame-buffer-size" );
764 if( i_var_buf_size > 0 )
765 i_frame_buffer = i_var_buf_size;
766 i_receive_buffer = 2000000;
767 }
768 else if( !strcmp( sub->mediumName(), "text" ) )
769 ;
770 else continue;
771
772 if( strcasestr( sub->codecName(), "REAL" ) )
773 {
774 msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
775 p_sys->b_real = true; /* This is a problem, we'll handle it later */
776 continue;
777 }
778
779 if( p_sys->rtsp && i_client_port != -1 )
780 {
781 sub->setClientPortNum( i_client_port );
782 i_client_port += 2;
783 }
784
785 if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
786 bInit = sub->initiate( 0 );
787 else
788 bInit = sub->initiate();
789
790 if( !bInit )
791 {
792 msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
793 sub->mediumName(), sub->codecName(),
794 p_sys->env->getResultMsg() );
795 }
796 else
797 {
798 if( sub->rtpSource() != NULL )
799 {
800 int fd = sub->rtpSource()->RTPgs()->socketNum();
801
802 /* Increase the buffer size */
803 if( i_receive_buffer > 0 )
804 increaseReceiveBufferTo( *p_sys->env, fd, i_receive_buffer );
805
806 /* Increase the RTP reorder timebuffer just a bit */
807 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
808 }
809 msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
810 sub->codecName() );
811
812 /* Issue the SETUP */
813 if( p_sys->rtsp )
814 {
815 p_sys->rtsp->sendSetupCommand( *sub, default_live555_callback, False,
816 toBool( b_rtsp_tcp ),
817 toBool( p_sys->b_force_mcast && !b_rtsp_tcp ) );
818 if( !wait_Live555_response( p_demux ) )
819 {
820 /* if we get an unsupported transport error, toggle TCP
821 * use and try again */
822 if( p_sys->i_live555_ret == 461 )
823 p_sys->rtsp->sendSetupCommand( *sub, default_live555_callback, False,
824 !toBool( b_rtsp_tcp ), False );
825 if( p_sys->i_live555_ret != 461 || !wait_Live555_response( p_demux ) )
826 {
827 msg_Err( p_demux, "SETUP of'%s/%s' failed %s",
828 sub->mediumName(), sub->codecName(),
829 p_sys->env->getResultMsg() );
830 continue;
831 }
832 else
833 {
834 var_SetBool( p_demux, "rtsp-tcp", true );
835 b_rtsp_tcp = true;
836 }
837 }
838 }
839
840 /* Check if we will receive data from this subsession for
841 * this track */
842 if( sub->readSource() == NULL ) continue;
843 if( !p_sys->b_multicast )
844 {
845 /* We need different rollover behaviour for multicast */
846 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
847 }
848
849 tk = (live_track_t*)malloc( sizeof( live_track_t ) );
850 if( !tk )
851 {
852 delete iter;
853 return VLC_ENOMEM;
854 }
855 tk->p_demux = p_demux;
856 tk->sub = sub;
857 tk->p_es = NULL;
858 tk->format = live_track_t::SINGLE_STREAM;
859 tk->p_asf_block = NULL;
860 tk->b_discard_trunc = false;
861 tk->p_out_muxed = NULL;
862 tk->waiting = 0;
863 tk->b_rtcp_sync = false;
864 tk->b_flushing_discontinuity = false;
865 tk->i_next_block_flags = 0;
866 tk->i_lastpts = VLC_TS_INVALID;
867 tk->i_pcr = VLC_TS_INVALID;
868 tk->f_npt = 0.;
869 tk->state = live_track_t::STATE_SELECTED;
870 tk->i_buffer = i_frame_buffer;
871 tk->p_buffer = (uint8_t *)malloc( i_frame_buffer );
872
873 if( !tk->p_buffer )
874 {
875 free( tk );
876 delete iter;
877 return VLC_ENOMEM;
878 }
879
880 /* Value taken from mplayer */
881 if( !strcmp( sub->mediumName(), "audio" ) )
882 {
883 es_format_Init( &tk->fmt, AUDIO_ES, VLC_CODEC_UNKNOWN );
884 tk->fmt.audio.i_channels = sub->numChannels();
885 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
886
887 if( !strcmp( sub->codecName(), "MPA" ) ||
888 !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
889 !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
890 {
891 tk->fmt.i_codec = VLC_CODEC_MPGA;
892 tk->fmt.audio.i_rate = 0;
893 }
894 else if( !strcmp( sub->codecName(), "AC3" ) )
895 {
896 tk->fmt.i_codec = VLC_CODEC_A52;
897 tk->fmt.audio.i_rate = 0;
898 }
899 else if( !strcmp( sub->codecName(), "L16" ) )
900 {
901 tk->fmt.i_codec = VLC_CODEC_S16B;
902 tk->fmt.audio.i_bitspersample = 16;
903 }
904 else if( !strcmp( sub->codecName(), "L20" ) )
905 {
906 tk->fmt.i_codec = VLC_CODEC_S20B;
907 tk->fmt.audio.i_bitspersample = 20;
908 }
909 else if( !strcmp( sub->codecName(), "L24" ) )
910 {
911 tk->fmt.i_codec = VLC_CODEC_S24B;
912 tk->fmt.audio.i_bitspersample = 24;
913 }
914 else if( !strcmp( sub->codecName(), "L8" ) )
915 {
916 tk->fmt.i_codec = VLC_CODEC_U8;
917 tk->fmt.audio.i_bitspersample = 8;
918 }
919 else if( !strcmp( sub->codecName(), "DAT12" ) )
920 {
921 tk->fmt.i_codec = VLC_CODEC_DAT12;
922 tk->fmt.audio.i_bitspersample = 12;
923 }
924 else if( !strcmp( sub->codecName(), "PCMU" ) )
925 {
926 tk->fmt.i_codec = VLC_CODEC_MULAW;
927 tk->fmt.audio.i_bitspersample = 8;
928 }
929 else if( !strcmp( sub->codecName(), "PCMA" ) )
930 {
931 tk->fmt.i_codec = VLC_CODEC_ALAW;
932 tk->fmt.audio.i_bitspersample = 8;
933 }
934 else if( !strncmp( sub->codecName(), "G726", 4 ) )
935 {
936 tk->fmt.i_codec = VLC_CODEC_ADPCM_G726;
937 tk->fmt.audio.i_rate = 8000;
938 tk->fmt.audio.i_channels = 1;
939 if( !strcmp( sub->codecName()+5, "40" ) )
940 tk->fmt.i_bitrate = 40000;
941 else if( !strcmp( sub->codecName()+5, "32" ) )
942 tk->fmt.i_bitrate = 32000;
943 else if( !strcmp( sub->codecName()+5, "24" ) )
944 tk->fmt.i_bitrate = 24000;
945 else if( !strcmp( sub->codecName()+5, "16" ) )
946 tk->fmt.i_bitrate = 16000;
947 }
948 else if( !strcmp( sub->codecName(), "AMR" ) )
949 {
950 tk->fmt.i_codec = VLC_CODEC_AMR_NB;
951 }
952 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
953 {
954 tk->fmt.i_codec = VLC_CODEC_AMR_WB;
955 }
956 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
957 {
958 unsigned int i_extra;
959 uint8_t *p_extra;
960
961 tk->fmt.i_codec = VLC_CODEC_MP4A;
962
963 if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
964 i_extra ) ) )
965 {
966 tk->fmt.i_extra = i_extra;
967 tk->fmt.p_extra = xmalloc( i_extra );
968 memcpy( tk->fmt.p_extra, p_extra, i_extra );
969 delete[] p_extra;
970 }
971 /* Because the "faad" decoder does not handle the LATM
972 * data length field at the start of each returned LATM
973 * frame, tell the RTP source to omit. */
974 ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
975 }
976 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
977 {
978 unsigned int i_extra;
979 uint8_t *p_extra;
980
981 tk->fmt.i_codec = VLC_CODEC_MP4A;
982
983 if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
984 i_extra ) ) )
985 {
986 tk->fmt.i_extra = i_extra;
987 tk->fmt.p_extra = xmalloc( i_extra );
988 memcpy( tk->fmt.p_extra, p_extra, i_extra );
989 delete[] p_extra;
990 }
991 }
992 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
993 {
994 tk->format = live_track_t::ASF_STREAM;
995 if( p_sys->p_out_asf == NULL )
996 p_sys->p_out_asf =
997 vlc_demux_chained_New( VLC_OBJECT(p_demux), "asf",
998 p_demux->out );
999 }
1000 else if( !strcmp( sub->codecName(), "X-QT" ) ||
1001 !strcmp( sub->codecName(), "X-QUICKTIME" ) )
1002 {
1003 tk->format = live_track_t::QUICKTIME_STREAM;
1004 }
1005 else if( !strcmp( sub->codecName(), "SPEEX" ) )
1006 {
1007 tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
1008 }
1009 else if( !strcmp( sub->codecName(), "VORBIS" ) )
1010 {
1011 tk->fmt.i_codec = VLC_CODEC_VORBIS;
1012 unsigned int i_extra;
1013 unsigned char *p_extra;
1014 if( ( p_extra=parseVorbisConfigStr( sub->fmtp_config(),
1015 i_extra ) ) )
1016 {
1017 tk->fmt.i_extra = i_extra;
1018 tk->fmt.p_extra = p_extra;
1019 }
1020 else
1021 msg_Warn( p_demux,"Missing or unsupported vorbis header." );
1022 }
1023 else if( !strcmp( sub->codecName(), "OPUS" ) )
1024 {
1025 tk->fmt.i_codec = VLC_CODEC_OPUS;
1026 }
1027 }
1028 else if( !strcmp( sub->mediumName(), "video" ) )
1029 {
1030 es_format_Init( &tk->fmt, VIDEO_ES, VLC_CODEC_UNKNOWN );
1031 if( !strcmp( sub->codecName(), "MPV" ) )
1032 {
1033 tk->fmt.i_codec = VLC_CODEC_MPGV;
1034 tk->fmt.b_packetized = false;
1035 }
1036 else if( !strcmp( sub->codecName(), "H263" ) ||
1037 !strcmp( sub->codecName(), "H263-1998" ) ||
1038 !strcmp( sub->codecName(), "H263-2000" ) )
1039 {
1040 tk->fmt.i_codec = VLC_CODEC_H263;
1041 }
1042 else if( !strcmp( sub->codecName(), "H261" ) )
1043 {
1044 tk->fmt.i_codec = VLC_CODEC_H261;
1045 }
1046 else if( !strcmp( sub->codecName(), "H264" ) )
1047 {
1048 unsigned int i_extra = 0;
1049 uint8_t *p_extra = NULL;
1050
1051 tk->fmt.i_codec = VLC_CODEC_H264;
1052 tk->fmt.b_packetized = false;
1053
1054 if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
1055 i_extra ) ) )
1056 {
1057 tk->fmt.i_extra = i_extra;
1058 tk->fmt.p_extra = xmalloc( i_extra );
1059 memcpy( tk->fmt.p_extra, p_extra, i_extra );
1060
1061 delete[] p_extra;
1062 }
1063 }
1064 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1393372800 // 2014.02.26
1065 else if( !strcmp( sub->codecName(), "H265" ) )
1066 {
1067 unsigned int i_extra1 = 0, i_extra2 = 0, i_extra3 = 0, i_extraTot;
1068 uint8_t *p_extra1 = NULL, *p_extra2 = NULL, *p_extra3 = NULL;
1069
1070 tk->fmt.i_codec = VLC_CODEC_HEVC;
1071 tk->fmt.b_packetized = false;
1072
1073 p_extra1 = parseH264ConfigStr( sub->fmtp_spropvps(), i_extra1 );
1074 p_extra2 = parseH264ConfigStr( sub->fmtp_spropsps(), i_extra2 );
1075 p_extra3 = parseH264ConfigStr( sub->fmtp_sproppps(), i_extra3 );
1076 i_extraTot = i_extra1 + i_extra2 + i_extra3;
1077 if( i_extraTot > 0 )
1078 {
1079 tk->fmt.i_extra = i_extraTot;
1080 tk->fmt.p_extra = xmalloc( i_extraTot );
1081 if( p_extra1 )
1082 {
1083 memcpy( tk->fmt.p_extra, p_extra1, i_extra1 );
1084 }
1085 if( p_extra2 )
1086 {
1087 memcpy( ((char*)tk->fmt.p_extra)+i_extra1, p_extra2, i_extra2 );
1088 }
1089 if( p_extra3 )
1090 {
1091 memcpy( ((char*)tk->fmt.p_extra)+i_extra1+i_extra2, p_extra3, i_extra3 );
1092 }
1093
1094 delete[] p_extra1; delete[] p_extra2; delete[] p_extra3;
1095 }
1096 }
1097 #endif
1098 else if( !strcmp( sub->codecName(), "JPEG" ) )
1099 {
1100 tk->fmt.i_codec = VLC_CODEC_MJPG;
1101 }
1102 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
1103 {
1104 unsigned int i_extra;
1105 uint8_t *p_extra;
1106
1107 tk->fmt.i_codec = VLC_CODEC_MP4V;
1108
1109 if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
1110 i_extra ) ) )
1111 {
1112 tk->fmt.i_extra = i_extra;
1113 tk->fmt.p_extra = xmalloc( i_extra );
1114 memcpy( tk->fmt.p_extra, p_extra, i_extra );
1115 delete[] p_extra;
1116 }
1117 }
1118 else if( !strcmp( sub->codecName(), "X-QT" ) ||
1119 !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
1120 !strcmp( sub->codecName(), "X-QDM" ) ||
1121 !strcmp( sub->codecName(), "X-SV3V-ES" ) ||
1122 !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
1123 {
1124 tk->format = live_track_t::QUICKTIME_STREAM;
1125 }
1126 else if( !strcmp( sub->codecName(), "MP2T" ) )
1127 {
1128 tk->format = live_track_t::MULTIPLEXED_STREAM;
1129 tk->p_out_muxed =
1130 vlc_demux_chained_New( VLC_OBJECT(p_demux), "ts",
1131 p_demux->out );
1132 }
1133 else if( !strcmp( sub->codecName(), "MP2P" ) ||
1134 !strcmp( sub->codecName(), "MP1S" ) )
1135 {
1136 tk->format = live_track_t::MULTIPLEXED_STREAM;
1137 tk->p_out_muxed =
1138 vlc_demux_chained_New( VLC_OBJECT(p_demux), "ps",
1139 p_demux->out );
1140 }
1141 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
1142 {
1143 tk->format = live_track_t::ASF_STREAM;
1144 if( p_sys->p_out_asf == NULL )
1145 p_sys->p_out_asf =
1146 vlc_demux_chained_New( VLC_OBJECT(p_demux),
1147 "asf", p_demux->out );
1148 }
1149 else if( !strcmp( sub->codecName(), "DV" ) )
1150 {
1151 tk->format = live_track_t::MULTIPLEXED_STREAM;
1152 tk->b_discard_trunc = true;
1153 tk->p_out_muxed =
1154 vlc_demux_chained_New( VLC_OBJECT(p_demux), "rawdv",
1155 p_demux->out );
1156 }
1157 else if( !strcmp( sub->codecName(), "VP8" ) )
1158 {
1159 tk->fmt.i_codec = VLC_CODEC_VP8;
1160 }
1161 else if( !strcmp( sub->codecName(), "THEORA" ) )
1162 {
1163 tk->fmt.i_codec = VLC_CODEC_THEORA;
1164 unsigned int i_extra;
1165 unsigned char *p_extra;
1166 if( ( p_extra=parseVorbisConfigStr( sub->fmtp_config(),
1167 i_extra ) ) )
1168 {
1169 tk->fmt.i_extra = i_extra;
1170 tk->fmt.p_extra = p_extra;
1171 }
1172 else
1173 msg_Warn( p_demux,"Missing or unsupported theora header." );
1174 }
1175 }
1176 else if( !strcmp( sub->mediumName(), "text" ) )
1177 {
1178 es_format_Init( &tk->fmt, SPU_ES, VLC_CODEC_UNKNOWN );
1179
1180 if( !strcmp( sub->codecName(), "T140" ) )
1181 {
1182 tk->fmt.i_codec = VLC_CODEC_ITU_T140;
1183 }
1184 }
1185
1186 /* Try and parse a=lang: attribute */
1187 p_lang = strstr( sub->savedSDPLines(), "a=lang:" );
1188 if( !p_lang )
1189 p_lang = p_sess_lang;
1190
1191 if( p_lang )
1192 {
1193 unsigned i_lang_len;
1194 p_lang += 7;
1195 i_lang_len = strcspn( p_lang, " \r\n" );
1196 tk->fmt.psz_language = strndup( p_lang, i_lang_len );
1197 }
1198
1199 if( tk->format == live_track_t::SINGLE_STREAM )
1200 {
1201 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1202 }
1203
1204 if( sub->rtcpInstance() != NULL )
1205 {
1206 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1207 }
1208
1209 if( tk->p_es ||
1210 tk->format == live_track_t::QUICKTIME_STREAM ||
1211 (tk->format == live_track_t::MULTIPLEXED_STREAM && tk->p_out_muxed ) ||
1212 (tk->format == live_track_t::ASF_STREAM && p_sys->p_out_asf ) )
1213 {
1214 TAB_APPEND_CAST( (live_track_t **), p_sys->i_track, p_sys->track, tk );
1215 }
1216 else
1217 {
1218 /* BUG ??? */
1219 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1220 es_format_Clean( &tk->fmt );
1221 free( tk );
1222 }
1223 }
1224 }
1225 delete iter;
1226 if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1227
1228 /* Retrieve the starttime if possible */
1229 p_sys->f_npt_start = p_sys->ms->playStartTime();
1230
1231 /* Retrieve the duration if possible */
1232 p_sys->f_npt_length = p_sys->ms->playEndTime();
1233
1234 /* */
1235 msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->f_npt_start, p_sys->f_npt_length );
1236
1237 /* */
1238 p_sys->b_no_data = true;
1239 p_sys->i_no_data_ti = 0;
1240 p_sys->b_rtcp_sync = false;
1241 p_sys->i_pcr = VLC_TS_INVALID;
1242
1243 return i_return;
1244 }
1245
1246 /*****************************************************************************
1247 * Play: starts the actual playback of the stream
1248 *****************************************************************************/
1249 static int Play( demux_t *p_demux )
1250 {
1251 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1252
1253 if( p_sys->rtsp )
1254 {
1255 /* The PLAY */
1256 p_sys->rtsp->sendPlayCommand( *p_sys->ms, default_live555_callback, p_sys->f_npt_start, -1, 1 );
1257
1258 if( !wait_Live555_response(p_demux) )
1259 {
1260 msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1261 return VLC_EGENERIC;
1262 }
1263
1264 /* Retrieve the timeout value and set up a timeout prevention thread */
1265 int timeout = p_sys->rtsp->sessionTimeoutParameter();
1266 if( timeout <= 2 )
1267 timeout = 60; /* default value from RFC2326 */
1268 msg_Dbg( p_demux, "We have a timeout of %d seconds", timeout );
1269
1270 mtime_t interval = (timeout - 2) * CLOCK_FREQ;
1271 vlc_timer_schedule( p_sys->timer, false, interval, interval);
1272 }
1273 p_sys->i_pcr = VLC_TS_INVALID;
1274
1275 /* Retrieve the starttime if possible */
1276 p_sys->f_npt_start = p_sys->ms->playStartTime();
1277 if( p_sys->ms->playEndTime() > 0 )
1278 p_sys->f_npt_length = p_sys->ms->playEndTime();
1279
1280 msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->f_npt_start, p_sys->f_npt_length );
1281 return VLC_SUCCESS;
1282 }
1283
1284 /*****************************************************************************
1285 * HasSharedSession: returns if the session is shared with another stream
1286 *****************************************************************************/
1287 static bool HasSharedSession( MediaSubsession *session )
1288 {
1289 if( session->sessionId() == NULL )
1290 return false;
1291 MediaSubsessionIterator *it =
1292 new MediaSubsessionIterator( session->parentSession() );
1293 MediaSubsession *subsession;
1294 bool b_shared = false;
1295 while( (subsession = it->next()) != NULL )
1296 {
1297 if( session == subsession )
1298 continue;
1299 if( subsession->sessionId() != NULL &&
1300 !strcmp( session->sessionId(), subsession->sessionId() ) )
1301 {
1302 b_shared = true;
1303 break;
1304 }
1305 }
1306 delete it;
1307 return b_shared;
1308 }
1309
1310 /*****************************************************************************
1311 * ResumeTrack: setup or resume a silenced track
1312 *****************************************************************************/
1313 static void ResumeTrack( demux_t *p_demux, live_track_t *tk )
1314 {
1315 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1316
1317 bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1318 var_GetBool( p_demux, "rtsp-http" );
1319 p_sys->rtsp->sendSetupCommand( *tk->sub, default_live555_callback, False,
1320 toBool( b_rtsp_tcp ),
1321 toBool( p_sys->b_force_mcast && !b_rtsp_tcp ) );
1322 if( !wait_Live555_response( p_demux ) )
1323 {
1324 msg_Err( p_demux, "SETUP of'%s/%s' failed %s",
1325 tk->sub->mediumName(), tk->sub->codecName(),
1326 p_sys->env->getResultMsg() );
1327 }
1328 else
1329 {
1330 p_sys->rtsp->sendPlayCommand( *tk->sub, default_live555_callback, -1, -1, p_sys->ms->scale() );
1331 if( !wait_Live555_response(p_demux) )
1332 {
1333 msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1334 if( (p_sys->capabilities & CAP_SUBSESSION_TEARDOWN) ||
1335 !HasSharedSession( tk->sub ) )
1336 {
1337 tk->state = live_track_t::STATE_TEARDOWN;
1338 p_sys->rtsp->sendTeardownCommand( *tk->sub, NULL );
1339 }
1340 }
1341 else
1342 tk->state = live_track_t::STATE_SELECTED;
1343 }
1344 }
1345
1346 /*****************************************************************************
1347 * Demux:
1348 *****************************************************************************/
1349 static int Demux( demux_t *p_demux )
1350 {
1351 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1352 TaskToken task;
1353
1354 bool b_send_pcr = true;
1355 int i;
1356
1357 /* Protect Live555 from simultaneous calls in TimeoutPrevention()
1358 during pause */
1359 vlc_mutex_locker locker(&p_sys->timeout_mutex);
1360
1361 for( i = 0; i < p_sys->i_track; i++ )
1362 {
1363 live_track_t *tk = p_sys->track[i];
1364
1365 if( tk->p_es )
1366 {
1367 bool b;
1368 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
1369 if( !b && (tk->state == live_track_t::STATE_SELECTED) && p_sys->rtsp )
1370 {
1371 if( (p_sys->capabilities & CAP_SUBSESSION_TEARDOWN) ||
1372 !HasSharedSession( tk->sub ) )
1373 {
1374 tk->state = live_track_t::STATE_TEARDOWN;
1375 p_sys->rtsp->sendTeardownCommand( *tk->sub, NULL );
1376 }
1377 else tk->state = live_track_t::STATE_IGNORED;
1378 }
1379 else if( b && tk->state != live_track_t::STATE_SELECTED )
1380 {
1381 if( tk->state != live_track_t::STATE_IGNORED )
1382 ResumeTrack( p_demux, tk );
1383 else
1384 tk->state = live_track_t::STATE_SELECTED;
1385
1386 if( tk->state != live_track_t::STATE_SELECTED )
1387 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE, tk->p_es, false );
1388 }
1389 }
1390
1391 if( tk->format == live_track_t::ASF_STREAM ||
1392 tk->format == live_track_t::MULTIPLEXED_STREAM )
1393 {
1394 b_send_pcr = false;
1395 }
1396 }
1397
1398 /* First warn we want to read data */
1399 p_sys->event_data = 0;
1400 for( i = 0; i < p_sys->i_track; i++ )
1401 {
1402 live_track_t *tk = p_sys->track[i];
1403
1404 if( tk->waiting == 0 )
1405 {
1406 tk->waiting = 1;
1407 tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1408 StreamRead, tk, StreamClose, tk );
1409 }
1410 }
1411 /* Create a task that will be called if we wait more than 300ms */
1412 task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterruptData, p_demux );
1413
1414 /* Do the read */
1415 p_sys->scheduler->doEventLoop( &p_sys->event_data );
1416
1417 /* remove the task */
1418 p_sys->scheduler->unscheduleDelayedTask( task );
1419
1420 if( b_send_pcr )
1421 {
1422 mtime_t i_minpcr = VLC_TS_INVALID;
1423 bool b_need_flush = false;
1424
1425 /* Check for gap in pts value */
1426 for( i = 0; i < p_sys->i_track; i++ )
1427 {
1428 live_track_t *tk = p_sys->track[i];
1429
1430 if( tk->state != live_track_t::STATE_SELECTED ||
1431 (p_sys->b_rtcp_sync && !tk->b_rtcp_sync) )
1432 continue;
1433
1434 /* Check for gap in pts value */
1435 b_need_flush |= (tk->b_flushing_discontinuity);
1436
1437 if( i_minpcr == VLC_TS_INVALID || ( tk->i_pcr != VLC_TS_INVALID && i_minpcr > tk->i_pcr ) )
1438 i_minpcr = tk->i_pcr;
1439 }
1440
1441 if( p_sys->i_pcr != VLC_TS_INVALID && b_need_flush )
1442 {
1443 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1444 p_sys->i_pcr = i_minpcr;
1445 p_sys->f_npt = 0.;
1446
1447 for( i = 0; i < p_sys->i_track; i++ )
1448 {
1449 live_track_t *tk = p_sys->track[i];
1450 tk->i_lastpts = VLC_TS_INVALID;
1451 tk->i_pcr = VLC_TS_INVALID;
1452 tk->f_npt = 0.;
1453 tk->b_flushing_discontinuity = false;
1454 tk->i_next_block_flags |= BLOCK_FLAG_DISCONTINUITY;
1455 }
1456 if( p_sys->i_pcr != VLC_TS_INVALID )
1457 es_out_SetPCR( p_demux->out, VLC_TS_0 +
1458 __MAX(0, p_sys->i_pcr - PCR_OFF) );
1459 }
1460 else if( p_sys->i_pcr == VLC_TS_INVALID ||
1461 i_minpcr > p_sys->i_pcr + PCR_OBS )
1462 {
1463 p_sys->i_pcr = __MAX(0, i_minpcr - PCR_OFF);
1464 if( p_sys->i_pcr != VLC_TS_INVALID )
1465 es_out_SetPCR( p_demux->out, VLC_TS_0 + p_sys->i_pcr );
1466 }
1467 }
1468
1469 if( p_sys->b_multicast && p_sys->b_no_data &&
1470 ( p_sys->i_no_data_ti > 120 ) )
1471 {
1472 /* FIXME Make this configurable
1473 msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1474 return 0;
1475 */
1476 }
1477 else if( !p_sys->b_multicast && !p_sys->b_paused &&
1478 p_sys->b_no_data && ( p_sys->i_no_data_ti > 34 ) )
1479 {
1480 bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1481 var_GetBool( p_demux, "rtsp-http" );
1482
1483 if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1484 {
1485 msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1486 if( RollOverTcp( p_demux ) )
1487 {
1488 msg_Err( p_demux, "TCP rollover failed, aborting" );
1489 return 0;
1490 }
1491 return 1;
1492 }
1493 msg_Err( p_demux, "no data received in 10s, aborting" );
1494 return 0;
1495 }
1496 else if( !p_sys->b_multicast && !p_sys->b_paused &&
1497 ( p_sys->i_no_data_ti > 34 ) )
1498 {
1499 /* EOF ? */
1500 msg_Warn( p_demux, "no data received in 10s, eof ?" );
1501 return 0;
1502 }
1503 return p_sys->b_error ? 0 : 1;
1504 }
1505
1506 /*****************************************************************************
1507 * Control:
1508 *****************************************************************************/
1509 static int Control( demux_t *p_demux, int i_query, va_list args )
1510 {
1511 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1512 int64_t *pi64, i64;
1513 double *pf, f;
1514 bool *pb;
1515
1516 vlc_mutex_locker locker(&p_sys->timeout_mutex); /* (see same in Demux) */
1517
1518 switch( i_query )
1519 {
1520 case DEMUX_GET_TIME:
1521 pi64 = va_arg( args, int64_t * );
1522 if( p_sys->f_npt > 0 )
1523 {
1524 *pi64 = (int64_t)(p_sys->f_npt * (double)CLOCK_FREQ);
1525 return VLC_SUCCESS;
1526 }
1527 return VLC_EGENERIC;
1528
1529 case DEMUX_GET_LENGTH:
1530 pi64 = va_arg( args, int64_t * );
1531 if( p_sys->f_npt_length > 0 )
1532 {
1533 double d_length = p_sys->f_npt_length * (double)CLOCK_FREQ;
1534 if( d_length >= INT64_MAX )
1535 *pi64 = INT64_MAX;
1536 else
1537 *pi64 = (int64_t)d_length;
1538 return VLC_SUCCESS;
1539 }
1540 return VLC_EGENERIC;
1541
1542 case DEMUX_GET_POSITION:
1543 pf = va_arg( args, double * );
1544 if( (p_sys->f_npt_length > 0) && (p_sys->f_npt > 0) )
1545 {
1546 *pf = p_sys->f_npt / p_sys->f_npt_length;
1547 return VLC_SUCCESS;
1548 }
1549 return VLC_EGENERIC;
1550
1551 case DEMUX_SET_POSITION:
1552 case DEMUX_SET_TIME:
1553 if( p_sys->rtsp && (p_sys->f_npt_length > 0) )
1554 {
1555 float time;
1556
1557 if( (i_query == DEMUX_SET_TIME) && (p_sys->f_npt > 0) )
1558 {
1559 i64 = va_arg( args, int64_t );
1560 time = (float)(i64 / 1000000.0); /* in second */
1561 }
1562 else if( i_query == DEMUX_SET_TIME )
1563 return VLC_EGENERIC;
1564 else
1565 {
1566 f = va_arg( args, double );
1567 time = f * p_sys->f_npt_length; /* in second */
1568 }
1569
1570 if( p_sys->b_paused )
1571 {
1572 p_sys->f_seek_request = time;
1573 return VLC_SUCCESS;
1574 }
1575
1576 p_sys->rtsp->sendPauseCommand( *p_sys->ms, default_live555_callback );
1577
1578 if( !wait_Live555_response( p_demux ) )
1579 {
1580 msg_Err( p_demux, "PAUSE before seek failed %s",
1581 p_sys->env->getResultMsg() );
1582 return VLC_EGENERIC;
1583 }
1584
1585 p_sys->rtsp->sendPlayCommand( *p_sys->ms, default_live555_callback, time, -1, 1 );
1586
1587 if( !wait_Live555_response( p_demux ) )
1588 {
1589 msg_Err( p_demux, "seek PLAY failed %s",
1590 p_sys->env->getResultMsg() );
1591 return VLC_EGENERIC;
1592 }
1593 p_sys->i_pcr = VLC_TS_INVALID;
1594
1595 for( int i = 0; i < p_sys->i_track; i++ )
1596 {
1597 p_sys->track[i]->b_rtcp_sync = false;
1598 p_sys->track[i]->i_lastpts = VLC_TS_INVALID;
1599 p_sys->track[i]->i_pcr = VLC_TS_INVALID;
1600 }
1601
1602 /* Retrieve the starttime if possible */
1603 p_sys->f_npt = p_sys->f_npt_start = p_sys->ms->playStartTime();
1604
1605 /* Retrieve the duration if possible */
1606 if( p_sys->ms->playEndTime() > 0 )
1607 p_sys->f_npt_length = p_sys->ms->playEndTime();
1608
1609 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->f_npt_start, p_sys->f_npt_length );
1610 return VLC_SUCCESS;
1611 }
1612 return VLC_EGENERIC;
1613
1614 /* Special for access_demux */
1615 case DEMUX_CAN_PAUSE:
1616 case DEMUX_CAN_SEEK:
1617 pb = va_arg( args, bool * );
1618 if( p_sys->rtsp && p_sys->f_npt_length > 0 )
1619 /* Not always true, but will be handled in SET_PAUSE_STATE */
1620 *pb = true;
1621 else
1622 *pb = false;
1623 return VLC_SUCCESS;
1624
1625 case DEMUX_CAN_CONTROL_PACE:
1626 pb = va_arg( args, bool * );
1627
1628 #if 1 /* Disable for now until we have a clock synchro algo
1629 * which works with something else than MPEG over UDP */
1630 *pb = false;
1631 #else
1632 *pb = true;
1633 #endif
1634 return VLC_SUCCESS;
1635
1636 case DEMUX_CAN_CONTROL_RATE:
1637 pb = va_arg( args, bool * );
1638
1639 *pb = (p_sys->rtsp != NULL) &&
1640 (p_sys->f_npt_length > 0) &&
1641 (p_sys->capabilities & CAP_RATE_CONTROL);
1642 return VLC_SUCCESS;
1643
1644 case DEMUX_SET_RATE:
1645 {
1646 int *pi_int;
1647 double f_scale, f_old_scale;
1648
1649 if( !p_sys->rtsp || (p_sys->f_npt_length <= 0) ||
1650 !(p_sys->capabilities & CAP_RATE_CONTROL) )
1651 return VLC_EGENERIC;
1652
1653 /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1654 * supports Scale:
1655 *
1656 * "[...] should try to approximate the viewing rate, but
1657 * may restrict the range of scale values that it supports.
1658 * The response MUST contain the actual scale value chosen
1659 * by the server."
1660 *
1661 * Scale = 1 indicates normal play
1662 * Scale > 1 indicates fast forward
1663 * Scale < 1 && Scale > 0 indicates slow motion
1664 * Scale < 0 value indicates rewind
1665 */
1666
1667 pi_int = va_arg( args, int * );
1668 f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1669 f_old_scale = p_sys->ms->scale();
1670
1671 /* Passing -1 for the start and end time will mean liveMedia won't
1672 * create a Range: section for the RTSP message. The server should
1673 * pick up from the current position */
1674 p_sys->rtsp->sendPlayCommand( *p_sys->ms, default_live555_callback, -1, -1, f_scale );
1675
1676 if( !wait_Live555_response( p_demux ) )
1677 {
1678 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1679 p_sys->env->getResultMsg() );
1680 return VLC_EGENERIC;
1681 }
1682
1683 if( p_sys->ms->scale() == f_old_scale )
1684 {
1685 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1686 p_sys->ms->scale() );
1687 return VLC_EGENERIC;
1688 }
1689
1690 /* ReSync the stream */
1691 p_sys->f_npt_start = 0;
1692 p_sys->i_pcr = VLC_TS_INVALID;
1693 p_sys->f_npt = 0.0;
1694
1695 *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1696 msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1697 return VLC_SUCCESS;
1698 }
1699
1700 case DEMUX_SET_PAUSE_STATE:
1701 {
1702 bool b_pause = (bool)va_arg( args, int );
1703 if( p_sys->rtsp == NULL )
1704 return VLC_EGENERIC;
1705
1706 if( b_pause == p_sys->b_paused )
1707 return VLC_SUCCESS;
1708 if( b_pause )
1709 p_sys->rtsp->sendPauseCommand( *p_sys->ms, default_live555_callback );
1710 else
1711 p_sys->rtsp->sendPlayCommand( *p_sys->ms, default_live555_callback, p_sys->f_seek_request,
1712 -1.0f, p_sys->ms->scale() );
1713
1714 if( !wait_Live555_response( p_demux ) )
1715 {
1716 msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1717 return VLC_EGENERIC;
1718 }
1719 p_sys->f_seek_request = -1;
1720 p_sys->b_paused = b_pause;
1721
1722 if( !p_sys->b_paused )
1723 {
1724 for( int i = 0; i < p_sys->i_track; i++ )
1725 {
1726 live_track_t *tk = p_sys->track[i];
1727 tk->b_rtcp_sync = false;
1728 tk->b_flushing_discontinuity = false;
1729 tk->i_next_block_flags |= BLOCK_FLAG_DISCONTINUITY;
1730 tk->i_lastpts = VLC_TS_INVALID;
1731 tk->i_pcr = VLC_TS_INVALID;
1732 }
1733 p_sys->i_pcr = VLC_TS_INVALID;
1734 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1735 }
1736
1737 /* Reset data received counter */
1738 p_sys->i_no_data_ti = 0;
1739
1740 /* Retrieve the starttime if possible */
1741 p_sys->f_npt_start = p_sys->ms->playStartTime();
1742
1743 /* Retrieve the duration if possible */
1744 if( p_sys->ms->playEndTime() )
1745 p_sys->f_npt_length = p_sys->ms->playEndTime();
1746
1747 msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->f_npt_start, p_sys->f_npt_length );
1748
1749 return VLC_SUCCESS;
1750 }
1751 case DEMUX_GET_TITLE_INFO:
1752 case DEMUX_SET_TITLE:
1753 case DEMUX_SET_SEEKPOINT:
1754 return VLC_EGENERIC;
1755
1756 case DEMUX_GET_PTS_DELAY:
1757 pi64 = va_arg( args, int64_t * );
1758 *pi64 = INT64_C(1000)
1759 * var_InheritInteger( p_demux, "network-caching" );
1760 return VLC_SUCCESS;
1761
1762 default:
1763 return VLC_EGENERIC;
1764 }
1765 }
1766
1767 /*****************************************************************************
1768 * RollOverTcp: reopen the rtsp into TCP mode
1769 * XXX: ugly, a lot of code are duplicated from Open()
1770 * This should REALLY be fixed
1771 *****************************************************************************/
1772 static int RollOverTcp( demux_t *p_demux )
1773 {
1774 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1775 int i, i_return;
1776
1777 var_SetBool( p_demux, "rtsp-tcp", true );
1778
1779 /* We close the old RTSP session */
1780 vlc_timer_schedule(p_sys->timer, false, 0, 0);
1781 p_sys->rtsp->sendTeardownCommand( *p_sys->ms, NULL );
1782 Medium::close( p_sys->ms );
1783 RTSPClient::close( p_sys->rtsp );
1784
1785 for( i = 0; i < p_sys->i_track; i++ )
1786 {
1787 live_track_t *tk = p_sys->track[i];
1788
1789 if( tk->p_out_muxed ) vlc_demux_chained_Delete( tk->p_out_muxed );
1790 if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1791 if( tk->p_asf_block ) block_Release( tk->p_asf_block );
1792 es_format_Clean( &tk->fmt );
1793 free( tk->p_buffer );
1794 free( tk );
1795 }
1796 TAB_CLEAN( p_sys->i_track, p_sys->track );
1797 if( p_sys->p_out_asf ) vlc_demux_chained_Delete( p_sys->p_out_asf );
1798
1799 p_sys->ms = NULL;
1800 p_sys->rtsp = NULL;
1801 p_sys->b_no_data = true;
1802 p_sys->i_no_data_ti = 0;
1803 p_sys->p_out_asf = NULL;
1804
1805 /* Reopen rtsp client */
1806 if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1807 {
1808 msg_Err( p_demux, "Failed to connect with %s", p_sys->psz_pl_url );
1809 goto error;
1810 }
1811
1812 if( p_sys->p_sdp == NULL )
1813 {
1814 msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1815 goto error;
1816 }
1817
1818 if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1819 {
1820 msg_Err( p_demux, "Nothing to play for %s", p_sys->psz_pl_url );
1821 goto error;
1822 }
1823
1824 if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1825 goto error;
1826
1827 return VLC_SUCCESS;
1828
1829 error:
1830 return VLC_EGENERIC;
1831 }
1832
1833
1834 /*****************************************************************************
1835 *
1836 *****************************************************************************/
1837 static block_t *StreamParseAsf( demux_t *p_demux, live_track_t *tk,
1838 bool b_marker,
1839 const uint8_t *p_data, unsigned i_size )
1840 {
1841 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1842 const unsigned i_packet_size = p_sys->asfh.i_min_data_packet_size;
1843 block_t *p_list = NULL;
1844
1845 while( i_size >= 4 )
1846 {
1847 unsigned i_flags = p_data[0];
1848 unsigned i_length_offset = (p_data[1] << 16) |
1849 (p_data[2] << 8) |
1850 (p_data[3] );
1851 bool b_length = i_flags & 0x40;
1852 bool b_relative_ts = i_flags & 0x20;
1853 bool b_duration = i_flags & 0x10;
1854 bool b_location_id = i_flags & 0x08;
1855
1856 //msg_Dbg( p_demux, "ASF: marker=%d size=%d : %c=%d id=%d",
1857 // b_marker, i_size, b_length ? 'L' : 'O', i_length_offset );
1858 unsigned i_header_size = 4;
1859 if( b_relative_ts )
1860 i_header_size += 4;
1861 if( b_duration )
1862 i_header_size += 4;
1863 if( b_location_id )
1864 i_header_size += 4;
1865
1866 if( i_header_size > i_size )
1867 {
1868 msg_Warn( p_demux, "Invalid header size" );
1869 break;
1870 }
1871
1872 /* XXX
1873 * When b_length is true, the streams I found do not seems to respect
1874 * the documentation.
1875 * From them, I have failed to find which choice between '__MIN()' or
1876 * 'i_length_offset - i_header_size' is the right one.
1877 */
1878 unsigned i_payload;
1879 if( b_length )
1880 i_payload = __MIN( i_length_offset, i_size - i_header_size);
1881 else
1882 i_payload = i_size - i_header_size;
1883
1884 if( !tk->p_asf_block )
1885 {
1886 tk->p_asf_block = block_Alloc( i_packet_size );
1887 if( !tk->p_asf_block )
1888 break;
1889 tk->p_asf_block->i_buffer = 0;
1890 }
1891 unsigned i_offset = b_length ? 0 : i_length_offset;
1892 if( i_offset == tk->p_asf_block->i_buffer && i_offset + i_payload <= i_packet_size )
1893 {
1894 memcpy( &tk->p_asf_block->p_buffer[i_offset], &p_data[i_header_size], i_payload );
1895 tk->p_asf_block->i_buffer += i_payload;
1896 if( b_marker )
1897 {
1898 /* We have a complete packet */
1899 tk->p_asf_block->i_buffer = i_packet_size;
1900 block_ChainAppend( &p_list, tk->p_asf_block );
1901 tk->p_asf_block = NULL;
1902 }
1903 }
1904 else
1905 {
1906 /* Reset on broken stream */
1907 msg_Err( p_demux, "Broken packet detected (%d vs %zu or %d + %d vs %d)",
1908 i_offset, tk->p_asf_block->i_buffer, i_offset, i_payload, i_packet_size);
1909 tk->p_asf_block->i_buffer = 0;
1910 }
1911
1912 /* */
1913 p_data += i_header_size + i_payload;
1914 i_size -= i_header_size + i_payload;
1915 }
1916 return p_list;
1917 }
1918
1919 /*****************************************************************************
1920 *
1921 *****************************************************************************/
1922 static void StreamRead( void *p_private, unsigned int i_size,
1923 unsigned int i_truncated_bytes, struct timeval pts,
1924 unsigned int duration )
1925 {
1926 VLC_UNUSED( duration );
1927
1928 live_track_t *tk = (live_track_t*)p_private;
1929 demux_t *p_demux = tk->p_demux;
1930 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
1931 block_t *p_block;
1932
1933 //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1934
1935 int64_t i_pts = (int64_t)pts.tv_sec * CLOCK_FREQ +
1936 (int64_t)pts.tv_usec;
1937
1938 /* XXX Beurk beurk beurk Avoid having negative value XXX */
1939 i_pts &= INT64_C(0x00ffffffffffffff);
1940
1941 /* Retrieve NPT for this pts */
1942 tk->f_npt = tk->sub->getNormalPlayTime(pts);
1943
1944 if( tk->format == live_track_t::QUICKTIME_STREAM && tk->p_es == NULL )
1945 {
1946 QuickTimeGenericRTPSource *qtRTPSource =
1947 (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1948 QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1949 uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1950
1951 /* Get codec information from the quicktime atoms :
1952 * http://developer.apple.com/quicktime/icefloe/dispatch026.html */
1953 if( tk->fmt.i_cat == VIDEO_ES ) {
1954 if( qtState.sdAtomSize < 16 + 32 )
1955 {
1956 /* invalid */
1957 p_sys->event_data = 0xff;
1958 tk->waiting = 0;
1959 return;
1960 }
1961 tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1962 tk->fmt.video.i_width = (sdAtom[28] << 8) | sdAtom[29];
1963 tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1964
1965 if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1966 {
1967 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1968 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1969 + qtRTPSource->qtState.sdAtomSize;
1970 while (pos+8 < endpos) {
1971 unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1972 if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1973 if( memcmp(pos+4, "avcC", 4) == 0 &&
1974 atomLength > 8 &&
1975 atomLength <= INT_MAX )
1976 {
1977 tk->fmt.i_extra = atomLength-8;
1978 tk->fmt.p_extra = xmalloc( tk->fmt.i_extra );
1979 memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1980 break;
1981 }
1982 pos += atomLength;
1983 }
1984 }
1985 else
1986 {
1987 tk->fmt.i_extra = qtState.sdAtomSize - 16;
1988 tk->fmt.p_extra = xmalloc( tk->fmt.i_extra );
1989 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1990 }
1991 }
1992 else {
1993 if( qtState.sdAtomSize < 24 )
1994 {
1995 /* invalid */
1996 p_sys->event_data = 0xff;
1997 tk->waiting = 0;
1998 return;
1999 }
2000 tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
2001 tk->fmt.audio.i_bitspersample = (sdAtom[22] << 8) | sdAtom[23];
2002 }
2003 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
2004 }
2005
2006 #if 0
2007 fprintf( stderr, "StreamRead size=%d pts=%lld\n",
2008 i_size,
2009 pts.tv_sec * 1000000LL + pts.tv_usec );
2010 #endif
2011
2012 /* grow buffer if it looks like buffer is too small, but don't eat
2013 * up all the memory on strange streams */
2014 if( i_truncated_bytes > 0 )
2015 {
2016 if( tk->i_buffer < 2000000 )
2017 {
2018 void *p_tmp;
2019 msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
2020 msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
2021 p_tmp = realloc( tk->p_buffer, tk->i_buffer * 2 );
2022 if( p_tmp == NULL )
2023 {
2024 msg_Warn( p_demux, "realloc failed" );
2025 }
2026 else
2027 {
2028 tk->p_buffer = (uint8_t*)p_tmp;
2029 tk->i_buffer *= 2;
2030 }
2031 }
2032
2033 if( tk->b_discard_trunc )
2034 {
2035 p_sys->event_data = 0xff;
2036 tk->waiting = 0;
2037 return;
2038 }
2039 }
2040
2041 assert( i_size <= tk->i_buffer );
2042
2043 if( tk->fmt.i_codec == VLC_CODEC_AMR_NB ||
2044 tk->fmt.i_codec == VLC_CODEC_AMR_WB )
2045 {
2046 AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
2047
2048 if( (p_block = block_Alloc( i_size + 1 )) )
2049 {
2050 p_block->p_buffer[0] = amrSource->lastFrameHeader();
2051 memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
2052 }
2053 }
2054 else if( tk->fmt.i_codec == VLC_CODEC_H261 )
2055 {
2056 H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
2057 uint32_t header = h261Source->lastSpecialHeader();
2058 if( (p_block = block_Alloc( i_size + 4 )) )
2059 {
2060 memcpy( p_block->p_buffer, &header, 4 );
2061 memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
2062 }
2063 }
2064 else if( tk->fmt.i_codec == VLC_CODEC_H264 || tk->fmt.i_codec == VLC_CODEC_HEVC )
2065 {
2066 if( tk->fmt.i_codec == VLC_CODEC_H264 && (tk->p_buffer[0] & 0x1f) >= 24 )
2067 msg_Warn( p_demux, "unsupported NAL type for H264" );
2068 else if( tk->fmt.i_codec == VLC_CODEC_HEVC && ((tk->p_buffer[0] & 0x7e)>>1) >= 48 )
2069 msg_Warn( p_demux, "unsupported NAL type for H265" );
2070
2071 /* Normal NAL type */
2072 if( (p_block = block_Alloc( i_size + 4 )) )
2073 {
2074 p_block->p_buffer[0] = 0x00;
2075 p_block->p_buffer[1] = 0x00;
2076 p_block->p_buffer[2] = 0x00;
2077 p_block->p_buffer[3] = 0x01;
2078 memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
2079 }
2080 }
2081 else if( tk->format == live_track_t::ASF_STREAM )
2082 {
2083 p_block = StreamParseAsf( p_demux, tk,
2084 tk->sub->rtpSource()->curPacketMarkerBit(),
2085 tk->p_buffer, i_size );
2086 }
2087 else
2088 {
2089 if( (p_block = block_Alloc( i_size )) )
2090 memcpy( p_block->p_buffer, tk->p_buffer, i_size );
2091 }
2092
2093 /* No data sent. Always in sync then */
2094 if( !tk->b_rtcp_sync && tk->sub->rtpSource() &&
2095 tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
2096 {
2097 msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
2098 p_sys->b_rtcp_sync = tk->b_rtcp_sync = true;
2099 if( tk->i_pcr != VLC_TS_INVALID )
2100 {
2101 tk->i_next_block_flags |= BLOCK_FLAG_DISCONTINUITY;
2102 const int64_t i_max_diff = CLOCK_FREQ * (( tk->fmt.i_cat == SPU_ES ) ? 60 : 1);
2103 tk->b_flushing_discontinuity = (llabs(i_pts - tk->i_pcr) > i_max_diff);
2104 tk->i_pcr = i_pts;
2105 }
2106 }
2107
2108 /* Update our global npt value */
2109 if( tk->f_npt > 0 &&
2110 ( tk->f_npt < p_sys->f_npt_length || p_sys->f_npt_length <= 0 ) )
2111 p_sys->f_npt = tk->f_npt;
2112
2113 if( p_block )
2114 {
2115 switch( tk->format )
2116 {
2117 case live_track_t::ASF_STREAM:
2118 vlc_demux_chained_Send( p_sys->p_out_asf, p_block );
2119 break;
2120 case live_track_t::MULTIPLEXED_STREAM:
2121 vlc_demux_chained_Send( tk->p_out_muxed, p_block );
2122 break;
2123 default:
2124 if( i_pts != tk->i_lastpts )
2125 p_block->i_pts = VLC_TS_0 + i_pts;
2126 /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
2127 switch( tk->fmt.i_codec )
2128 {
2129 case VLC_CODEC_MPGV:
2130 case VLC_CODEC_H264:
2131 case VLC_CODEC_HEVC:
2132 case VLC_CODEC_VP8:
2133 p_block->i_dts = VLC_TS_INVALID;
2134 break;
2135 default:
2136 p_block->i_dts = VLC_TS_0 + i_pts;
2137 break;
2138 }
2139
2140 if( i_truncated_bytes )
2141 p_block->i_flags |= BLOCK_FLAG_CORRUPTED;
2142
2143 if( unlikely(tk->i_next_block_flags) )
2144 {
2145 p_block->i_flags |= tk->i_next_block_flags;
2146 tk->i_next_block_flags = 0;
2147 }
2148 es_out_Send( p_demux->out, tk->p_es, p_block );
2149 if( i_pts > 0 )
2150 {
2151 if( tk->i_pcr < i_pts )
2152 tk->i_pcr = i_pts;
2153 tk->i_lastpts = i_pts;
2154 }
2155 break;
2156 }
2157 }
2158
2159 /* warn that's ok */
2160 p_sys->event_data = 0xff;
2161
2162 /* we have read data */
2163 tk->waiting = 0;
2164 p_sys->b_no_data = false;
2165 p_sys->i_no_data_ti = 0;
2166 }
2167
2168 /*****************************************************************************
2169 *
2170 *****************************************************************************/
2171 static void StreamClose( void *p_private )
2172 {
2173 live_track_t *tk = (live_track_t*)p_private;
2174 demux_t *p_demux = tk->p_demux;
2175 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
2176 tk->state = live_track_t::STATE_IGNORED;
2177 p_sys->event_rtsp = 0xff;
2178 p_sys->event_data = 0xff;
2179
2180 if( tk->p_es )
2181 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE, tk->p_es, false );
2182
2183 int nb_tracks = 0;
2184 for( int i = 0; i < p_sys->i_track; i++ )
2185 {
2186 if( p_sys->track[i]->state == live_track_t::STATE_SELECTED )
2187 nb_tracks++;
2188 }
2189 msg_Dbg( p_demux, "RTSP track Close, %d track remaining", nb_tracks );
2190 if( !nb_tracks )
2191 p_sys->b_error = true;
2192 }
2193
2194
2195 /*****************************************************************************
2196 *
2197 *****************************************************************************/
2198 static void TaskInterruptRTSP( void *p_private )
2199 {
2200 demux_t *p_demux = (demux_t*)p_private;
2201 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
2202
2203 /* Avoid lock */
2204 p_sys->event_rtsp = 0xff;
2205 }
2206
2207 static void TaskInterruptData( void *p_private )
2208 {
2209 demux_t *p_demux = (demux_t*)p_private;
2210 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
2211
2212 p_sys->i_no_data_ti++;
2213
2214 /* Avoid lock */
2215 p_sys->event_data = 0xff;
2216 }
2217
2218 /*****************************************************************************
2219 *
2220 *****************************************************************************/
2221 static void TimeoutPrevention( void *p_data )
2222 {
2223 demux_t *p_demux = (demux_t *) p_data;
2224 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
2225 char *bye = NULL;
2226
2227 /* Protect Live555 from us calling their functions simultaneously
2228 with Demux() or Control() */
2229 vlc_mutex_locker locker(&p_sys->timeout_mutex);
2230
2231 /* If the timer fires while the demuxer owns the lock, and the demuxer
2232 * then torns the session down, the pointers will become NULL. By the time
2233 * this timer callback obtains the callback, either a new session was
2234 * created and the timer is rescheduled, or the pointers are still NULL
2235 * and the timer is descheduled. In the second case, bail out (then wait
2236 * for the timer to be rescheduled or destroyed). In the first case, this
2237 * might send an early refresh - that´s harmless but suboptimal (FIXME). */
2238 if( p_sys->rtsp == NULL || p_sys->ms == NULL )
2239 return;
2240
2241 bool use_get_param = p_sys->b_get_param;
2242
2243 /* Use GET_PARAMETERS if supported. wmserver dialect supports
2244 * it, but does not report this properly. */
2245 if( var_GetBool( p_demux, "rtsp-wmserver" ) )
2246 use_get_param = true;
2247
2248 if( use_get_param )
2249 p_sys->rtsp->sendGetParameterCommand( *p_sys->ms,
2250 default_live555_callback, bye );
2251 else
2252 p_sys->rtsp->sendOptionsCommand( default_live555_callback, NULL );
2253
2254 if( !wait_Live555_response( p_demux ) )
2255 {
2256 msg_Err( p_demux, "keep-alive failed: %s",
2257 p_sys->env->getResultMsg() );
2258 /* Just continue, worst case is we get timed out later */
2259 }
2260 }
2261
2262 /*****************************************************************************
2263 *
2264 *****************************************************************************/
2265 static int ParseASF( demux_t *p_demux )
2266 {
2267 demux_sys_t *p_sys = (demux_sys_t *)p_demux->p_sys;
2268
2269 const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
2270 char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
2271 char *psz_end;
2272 block_t *p_header;
2273
2274 /* Parse the asf header */
2275 if( psz_asf == NULL )
2276 return VLC_EGENERIC;
2277
2278 psz_asf += strlen( psz_marker );
2279 psz_asf = strdup( psz_asf ); /* Duplicate it */
2280 psz_end = strchr( psz_asf, '\n' );
2281
2282 while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
2283 *psz_end-- = '\0';
2284
2285 if( psz_asf >= psz_end )
2286 {
2287 free( psz_asf );
2288 return VLC_EGENERIC;
2289 }
2290
2291 /* Always smaller */
2292 p_header = block_Alloc( psz_end - psz_asf );
2293 p_header->i_buffer = vlc_b64_decode_binary_to_buffer( p_header->p_buffer,
2294 p_header->i_buffer, psz_asf );
2295 //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
2296 if( p_header->i_buffer <= 0 )
2297 {
2298 free( psz_asf );
2299 return VLC_EGENERIC;
2300 }
2301
2302 /* Parse it to get packet size */
2303 asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
2304
2305 /* Send it to demuxer */
2306 vlc_demux_chained_Send( p_sys->p_out_asf, p_header );
2307
2308 free( psz_asf );
2309 return VLC_SUCCESS;
2310 }
2311
2312
2313 static unsigned char* parseH264ConfigStr( char const* configStr,
2314 unsigned int& configSize )
2315 {
2316 char *dup, *psz;
2317 size_t i_records = 1;
2318
2319 configSize = 0;
2320
2321 if( configStr == NULL || *configStr == '\0' )
2322 return NULL;
2323
2324 psz = dup = strdup( configStr );
2325
2326 /* Count the number of commas */
2327 for( psz = dup; *psz != '\0'; ++psz )
2328 {
2329 if( *psz == ',')
2330 {
2331 ++i_records;
2332 *psz = '\0';
2333 }
2334 }
2335
2336 size_t configMax = 5*strlen(dup);
2337 unsigned char *cfg = new unsigned char[configMax];
2338 psz = dup;
2339 for( size_t i = 0; i < i_records; ++i )
2340 {
2341 cfg[configSize++] = 0x00;
2342 cfg[configSize++] = 0x00;
2343 cfg[configSize++] = 0x00;
2344 cfg[configSize++] = 0x01;
2345
2346 configSize += vlc_b64_decode_binary_to_buffer( cfg+configSize,
2347 configMax-configSize, psz );
2348 psz += strlen(psz)+1;
2349 }
2350
2351 free( dup );
2352 return cfg;
2353 }
2354
2355 static uint8_t *parseVorbisConfigStr( char const* configStr,
2356 unsigned int& configSize )
2357 {
2358 configSize = 0;
2359 if( configStr == NULL || *configStr == '\0' )
2360 return NULL;
2361 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1332115200 // 2012.03.20
2362 unsigned char *p_cfg = base64Decode( configStr, configSize );
2363 #else
2364 char* configStr_dup = strdup( configStr );
2365 unsigned char *p_cfg = base64Decode( configStr_dup, configSize );
2366 free( configStr_dup );
2367 #endif
2368 uint8_t *p_extra = NULL;
2369 /* skip header count, ident number and length (cf. RFC 5215) */
2370 const unsigned int headerSkip = 9;
2371 if( configSize > headerSkip && ((uint8_t*)p_cfg)[3] == 1 )
2372 {
2373 configSize -= headerSkip;
2374 p_extra = (uint8_t*)xmalloc( configSize );
2375 memcpy( p_extra, p_cfg+headerSkip, configSize );
2376 }
2377 delete[] p_cfg;
2378 return p_extra;
2379 }
2380
2381 static char *passwordLessURL( vlc_url_t *p_url )
2382 {
2383 vlc_url_t url;
2384
2385 memcpy( &url, p_url, sizeof( vlc_url_t ) );
2386
2387 url.psz_username = NULL;
2388 url.psz_password = NULL;
2389 if( url.i_port == 0 )
2390 url.i_port = 554;
2391 return vlc_uri_compose( &url );
2392 }
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