Use add_password instead of add_string when applicable.
[vlc.git] / modules / demux / live555.cpp
1 /*****************************************************************************
2  * live555.cpp : LIVE555 Streaming Media support.
3  *****************************************************************************
4  * Copyright (C) 2003-2007 the VideoLAN team
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  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License along
22  * with this program; if not, write to the Free Software Foundation, Inc.,
23  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24  *****************************************************************************/
25
26 /*****************************************************************************
27  * Preamble
28  *****************************************************************************/
29
30 /* For inttypes.h
31  * Note: config.h may include inttypes.h, so make sure we define this option
32  * early enough. */
33 #define __STDC_CONSTANT_MACROS 1
34
35 #ifdef HAVE_CONFIG_H
36 # include "config.h"
37 #endif
38
39 #include <inttypes.h>
40
41 #include <vlc_common.h>
42 #include <vlc_plugin.h>
43 #include <vlc_input.h>
44 #include <vlc_demux.h>
45 #include <vlc_dialog.h>
46 #include <vlc_network.h>
47 #include <vlc_url.h>
48 #include <vlc_strings.h>
49
50 #include <iostream>
51 #include <limits.h>
52 #include <assert.h>
53
54
55 #if defined( WIN32 )
56 #   include <winsock2.h>
57 #endif
58
59 #include "UsageEnvironment.hh"
60 #include "BasicUsageEnvironment.hh"
61 #include "GroupsockHelper.hh"
62 #include "liveMedia.hh"
63
64 extern "C" {
65 #include "../access/mms/asf.h"  /* Who said ugly ? */
66 }
67
68 using namespace std;
69
70 /*****************************************************************************
71  * Module descriptor
72  *****************************************************************************/
73 static int  Open ( vlc_object_t * );
74 static void Close( vlc_object_t * );
75
76 #define CACHING_TEXT N_("Caching value (ms)")
77 #define CACHING_LONGTEXT N_( \
78     "Allows you to modify the default caching value for RTSP streams. This " \
79     "value should be set in millisecond units." )
80
81 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
82 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and nonstandard " \
83     "dialect of RTSP. With this parameter VLC will try this dialect, but "\
84     "then it cannot connect to normal RTSP servers." )
85
86 #define USER_TEXT N_("RTSP user name")
87 #define USER_LONGTEXT N_("Sets the username for the connection, " \
88     "if no username or password are set in the url.")
89 #define PASS_TEXT N_("RTSP password")
90 #define PASS_LONGTEXT N_("Sets the password for the connection, " \
91     "if no username or password are set in the url.")
92
93 vlc_module_begin ()
94     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
95     set_capability( "demux", 50 )
96     set_shortname( "RTP/RTSP")
97     set_callbacks( Open, Close )
98     add_shortcut( "live" )
99     add_shortcut( "livedotcom" )
100     set_category( CAT_INPUT )
101     set_subcategory( SUBCAT_INPUT_DEMUX )
102
103     add_submodule ()
104         set_description( N_("RTSP/RTP access and demux") )
105         add_shortcut( "rtsp" )
106         add_shortcut( "sdp" )
107         add_shortcut( "live" )
108         add_shortcut( "livedotcom" )
109         set_capability( "access_demux", 0 )
110         set_callbacks( Open, Close )
111         add_bool( "rtsp-tcp", 0, NULL,
112                   N_("Use RTP over RTSP (TCP)"),
113                   N_("Use RTP over RTSP (TCP)"), true )
114             change_safe()
115         add_integer( "rtp-client-port", -1, NULL,
116                   N_("Client port"),
117                   N_("Port to use for the RTP source of the session"), true )
118         add_bool( "rtsp-mcast", false, NULL,
119                   N_("Force multicast RTP via RTSP"),
120                   N_("Force multicast RTP via RTSP"), true )
121             change_safe()
122         add_bool( "rtsp-http", 0, NULL,
123                   N_("Tunnel RTSP and RTP over HTTP"),
124                   N_("Tunnel RTSP and RTP over HTTP"), true )
125             change_safe()
126         add_integer( "rtsp-http-port", 80, NULL,
127                   N_("HTTP tunnel port"),
128                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
129                   true )
130         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
131                     CACHING_TEXT, CACHING_LONGTEXT, true )
132             change_safe()
133         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
134                     KASENNA_LONGTEXT, true )
135         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
136                     USER_LONGTEXT, true )
137         add_password( "rtsp-pwd", NULL, NULL, PASS_TEXT,
138                       PASS_LONGTEXT, true )
139 vlc_module_end ()
140
141
142 /*****************************************************************************
143  * Local prototypes
144  *****************************************************************************/
145
146 typedef struct
147 {
148     demux_t         *p_demux;
149     MediaSubsession *sub;
150
151     es_format_t     fmt;
152     es_out_id_t     *p_es;
153
154     bool            b_muxed;
155     bool            b_quicktime;
156     bool            b_asf;
157     bool            b_discard_trunc;
158     stream_t        *p_out_muxed;    /* for muxed stream */
159
160     uint8_t         *p_buffer;
161     unsigned int    i_buffer;
162
163     bool            b_rtcp_sync;
164     char            waiting;
165     int64_t         i_pts;
166     float           i_npt;
167
168 } live_track_t;
169
170 struct timeout_thread_t
171 {
172     demux_sys_t  *p_sys;
173     vlc_thread_t handle;
174     bool         b_handle_keep_alive;
175 };
176
177 struct demux_sys_t
178 {
179     char            *p_sdp;    /* XXX mallocated */
180     char            *psz_path; /* URL-encoded path */
181     vlc_url_t       url;
182
183     MediaSession     *ms;
184     TaskScheduler    *scheduler;
185     UsageEnvironment *env ;
186     RTSPClient       *rtsp;
187
188     /* */
189     int              i_track;
190     live_track_t     **track;   /* XXX mallocated */
191
192     /* Weird formats */
193     asf_header_t     asfh;
194     stream_t         *p_out_asf;
195     bool             b_real;
196
197     /* */
198     int64_t          i_pcr; /* The clock */
199     float            i_npt;
200     float            i_npt_length;
201     float            i_npt_start;
202
203     /* timeout thread information */
204     int              i_timeout;     /* session timeout value in seconds */
205     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
206     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
207
208     /* */
209     bool             b_force_mcast;
210     bool             b_multicast;   /* if one of the tracks is multicasted */
211     bool             b_no_data;     /* if we never received any data */
212     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
213
214     char             event;
215
216     bool             b_get_param;   /* Does the server support GET_PARAMETER */
217 };
218
219 static int Demux  ( demux_t * );
220 static int Control( demux_t *, int, va_list );
221
222 static int Connect      ( demux_t * );
223 static int SessionsSetup( demux_t * );
224 static int Play         ( demux_t *);
225 static int ParseASF     ( demux_t * );
226 static int RollOverTcp  ( demux_t * );
227
228 static void StreamRead  ( void *, unsigned int, unsigned int,
229                           struct timeval, unsigned int );
230 static void StreamClose ( void * );
231 static void TaskInterrupt( void * );
232
233 static void* TimeoutPrevention( void * );
234
235 static unsigned char* parseH264ConfigStr( char const* configStr,
236                                           unsigned int& configSize );
237
238 /*****************************************************************************
239  * DemuxOpen:
240  *****************************************************************************/
241 static int  Open ( vlc_object_t *p_this )
242 {
243     demux_t     *p_demux = (demux_t*)p_this;
244     demux_sys_t *p_sys = NULL;
245
246     int i, i_return;
247     int i_error = VLC_EGENERIC;
248
249     if( p_demux->s )
250     {
251         /* See if it looks like a SDP
252            v, o, s fields are mandatory and in this order */
253         const uint8_t *p_peek;
254         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
255
256         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
257             memcmp( p_peek, "v=0\n", 4 ) &&
258             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
259         {
260             return VLC_EGENERIC;
261         }
262     }
263     else
264     {
265         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
266     }
267
268     p_demux->pf_demux  = Demux;
269     p_demux->pf_control= Control;
270     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
271     if( !p_sys ) return VLC_ENOMEM;
272
273     p_sys->p_sdp = NULL;
274     p_sys->scheduler = NULL;
275     p_sys->env = NULL;
276     p_sys->ms = NULL;
277     p_sys->rtsp = NULL;
278     p_sys->i_track = 0;
279     p_sys->track   = NULL;
280     p_sys->i_pcr = 0;
281     p_sys->i_npt = 0.;
282     p_sys->i_npt_start = 0.;
283     p_sys->i_npt_length = 0.;
284     p_sys->p_out_asf = NULL;
285     p_sys->b_no_data = true;
286     p_sys->i_no_data_ti = 0;
287     p_sys->p_timeout = NULL;
288     p_sys->i_timeout = 0;
289     p_sys->b_timeout_call = false;
290     p_sys->b_multicast = false;
291     p_sys->b_real = false;
292     p_sys->psz_path = strdup( p_demux->psz_path );
293     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
294     p_sys->b_get_param = false;
295
296     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
297     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
298
299     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
300     {
301         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
302         goto error;
303     }
304     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
305     {
306         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
307         goto error;
308     }
309
310     if( strcasecmp( p_demux->psz_access, "sdp" ) )
311     {
312         char *p = p_sys->psz_path;
313         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
314     }
315
316     if( p_demux->s != NULL )
317     {
318         /* Gather the complete sdp file */
319         int     i_sdp       = 0;
320         int     i_sdp_max   = 1000;
321         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
322
323         if( !p_sdp )
324         {
325             i_error = VLC_ENOMEM;
326             goto error;
327         }
328
329         for( ;; )
330         {
331             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
332                                       i_sdp_max - i_sdp - 1 );
333
334             if( !vlc_object_alive (p_demux) || p_demux->b_error )
335             {
336                 free( p_sdp );
337                 goto error;
338             }
339
340             if( i_read < 0 )
341             {
342                 msg_Err( p_demux, "failed to read SDP" );
343                 free( p_sdp );
344                 goto error;
345             }
346
347             i_sdp += i_read;
348
349             if( i_read < i_sdp_max - i_sdp - 1 )
350             {
351                 p_sdp[i_sdp] = '\0';
352                 break;
353             }
354
355             i_sdp_max += 1000;
356             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
357         }
358         p_sys->p_sdp = (char*)p_sdp;
359     }
360     else if( ( p_demux->s == NULL ) &&
361              !strcasecmp( p_demux->psz_access, "sdp" ) )
362     {
363         /* sdp:// link from SAP */
364         p_sys->p_sdp = strdup( p_sys->psz_path );
365     }
366     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
367     {
368         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
369         goto error;
370     }
371
372     if( p_sys->p_sdp == NULL )
373     {
374         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
375         i_error = VLC_ENOMEM;
376         goto error;
377     }
378
379     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
380     {
381         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
382         goto error;
383     }
384
385     if( p_sys->b_real ) goto error;
386
387     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
388         goto error;
389
390     if( p_sys->p_out_asf && ParseASF( p_demux ) )
391     {
392         msg_Err( p_demux, "cannot find a usable asf header" );
393         /* TODO Clean tracks */
394         goto error;
395     }
396
397     if( p_sys->i_track <= 0 )
398         goto error;
399
400     return VLC_SUCCESS;
401
402 error:
403     for( i = 0; i < p_sys->i_track; i++ )
404     {
405         live_track_t *tk = p_sys->track[i];
406
407         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
408         es_format_Clean( &tk->fmt );
409         free( tk->p_buffer );
410         free( tk );
411     }
412
413     if( p_sys->i_track ) free( p_sys->track );
414     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
415     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
416     if( p_sys->p_timeout )
417     {
418         vlc_cancel( p_sys->p_timeout->handle );
419         vlc_join( p_sys->p_timeout->handle, NULL );
420         free( p_sys->p_timeout );
421     }
422     if( p_sys->ms ) Medium::close( p_sys->ms );
423     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
424     if( p_sys->env ) p_sys->env->reclaim();
425     delete p_sys->scheduler;
426     free( p_sys->p_sdp );
427     free( p_sys->psz_path );
428
429     vlc_UrlClean( &p_sys->url );
430
431     free( p_sys );
432     return i_error;
433 }
434
435 /*****************************************************************************
436  * DemuxClose:
437  *****************************************************************************/
438 static void Close( vlc_object_t *p_this )
439 {
440     demux_t *p_demux = (demux_t*)p_this;
441     demux_sys_t *p_sys = p_demux->p_sys;
442     int i;
443
444     for( i = 0; i < p_sys->i_track; i++ )
445     {
446         live_track_t *tk = p_sys->track[i];
447
448         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
449         es_format_Clean( &tk->fmt );
450         free( tk->p_buffer );
451         free( tk );
452     }
453
454     if( p_sys->i_track ) free( p_sys->track );
455     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
456     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
457     if( p_sys->p_timeout )
458     {
459         vlc_cancel( p_sys->p_timeout->handle );
460         vlc_join( p_sys->p_timeout->handle, NULL );
461         free( p_sys->p_timeout );
462     }
463     if( p_sys->ms ) Medium::close( p_sys->ms );
464     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
465     if( p_sys->env ) p_sys->env->reclaim();
466     delete p_sys->scheduler;
467     free( p_sys->p_sdp );
468     free( p_sys->psz_path );
469
470     vlc_UrlClean( &p_sys->url );
471
472     free( p_sys );
473 }
474
475 /*****************************************************************************
476  * Connect: connects to the RTSP server to setup the session DESCRIBE
477  *****************************************************************************/
478 static int Connect( demux_t *p_demux )
479 {
480     demux_sys_t *p_sys = p_demux->p_sys;
481     Authenticator authenticator;
482     bool b_firstpass  = true;
483     char *psz_user    = NULL;
484     char *psz_pwd     = NULL;
485     char *psz_url     = NULL;
486     char *psz_options = NULL;
487     char *p_sdp       = NULL;
488     int  i_http_port  = 0;
489     int  i_ret        = VLC_SUCCESS;
490
491     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
492     if( p_sys->url.psz_username || p_sys->url.psz_password )
493     {
494         int err;
495         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
496                         p_sys->url.i_port, p_sys->url.psz_path );
497         if( err == -1 ) return VLC_ENOMEM;
498
499         psz_user = strdup( p_sys->url.psz_username );
500         psz_pwd  = strdup( p_sys->url.psz_password );
501     }
502     else
503     {
504         int err;
505         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
506         if( err == -1 ) return VLC_ENOMEM;
507
508         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
509         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
510     }
511
512 createnew:
513     if( !vlc_object_alive (p_demux) || p_demux->b_error )
514     {
515         free( psz_user );
516         free( psz_pwd );
517         free( psz_url );
518         return VLC_EGENERIC;
519     }
520
521     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
522         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
523
524     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
525           var_CreateGetInteger( p_demux, "verbose" ) > 1,
526           "VLC media player", i_http_port ) ) == NULL )
527     {
528         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
529                  p_sys->env->getResultMsg() );
530         free( psz_user );
531         free( psz_pwd );
532         free( psz_url );
533         return VLC_EGENERIC;
534     }
535
536     /* Kasenna enables KeepAlive by analysing the User-Agent string.
537      * Appending _KA to the string should be enough to enable this feature,
538      * however, there is a bug where the _KA doesn't get parsed from the
539      * default User-Agent as created by VLC/Live555 code. This is probably due
540      * to spaces in the string or the string being too long. Here we override
541      * the default string with a more compact version.
542      */
543     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
544     {
545         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
546     }
547
548 describe:
549     authenticator.setUsernameAndPassword( (const char*)psz_user,
550                                           (const char*)psz_pwd );
551
552     /* */
553     const int i_timeout = var_CreateGetInteger(p_demux, "ipv4-timeout") / 1000;
554
555 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
556     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
557                                                &authenticator, i_timeout );
558 #else
559     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
560                                                &authenticator );
561 #endif
562     if( psz_options == NULL && authenticator.realm() != NULL )
563     {
564         // try again, with the realm set this time
565 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
566         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
567                                                &authenticator, i_timeout );
568 #else
569         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
570                                                &authenticator );
571 #endif
572     }
573     if( psz_options )
574         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
575     delete [] psz_options;
576
577 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
578     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
579                                           var_GetBool( p_demux, "rtsp-kasenna" ), i_timeout );
580 #else
581     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
582                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
583 #endif
584
585     if( p_sdp == NULL )
586     {
587         /* failure occurred */
588         int i_code = 0;
589         const char *psz_error = p_sys->env->getResultMsg();
590
591         if( var_GetBool( p_demux, "rtsp-http" ) )
592             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
593                     &i_code );
594         else
595         {
596             const char *psz_tmp = strstr( psz_error, "RTSP" );
597             if( psz_tmp )
598                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
599             else
600                 i_code = 0;
601         }
602         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
603
604         if( b_firstpass )
605         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
606              * first time. This is a workaround to avoid asking for a
607              * user/passwd the first time the code passess here. */
608             i_code = 0;
609             b_firstpass = false;
610         }
611
612         if( i_code == 401 )
613         {
614             msg_Dbg( p_demux, "authentication failed" );
615
616             free( psz_user );
617             free( psz_pwd );
618             dialog_Login( p_demux, &psz_user, &psz_pwd,
619                           _("RTSP authentication"),
620                         _("Please enter a valid login name and a password.") );
621             if( psz_user != NULL && psz_pwd != NULL )
622             {
623                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
624                          psz_user, psz_pwd );
625                 goto describe;
626             }
627         }
628         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
629         {
630             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
631             vlc_value_t val;
632             val.b_bool = true;
633             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
634             var_Set( p_demux, "rtsp-http", val );
635             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
636             p_sys->rtsp = NULL;
637             goto createnew;
638         }
639         else
640         {
641             msg_Dbg( p_demux, "connection timeout" );
642             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
643             p_sys->rtsp = NULL;
644         }
645         i_ret = VLC_EGENERIC;
646     }
647
648     /* malloc-ated copy */
649     free( psz_url );
650     free( psz_user );
651     free( psz_pwd );
652
653     free( p_sys->p_sdp );
654     p_sys->p_sdp = NULL;
655     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
656     delete[] p_sdp;
657
658     return i_ret;
659 }
660
661 /*****************************************************************************
662  * SessionsSetup: prepares the subsessions and does the SETUP
663  *****************************************************************************/
664 static int SessionsSetup( demux_t *p_demux )
665 {
666     demux_sys_t             *p_sys  = p_demux->p_sys;
667     MediaSubsessionIterator *iter   = NULL;
668     MediaSubsession         *sub    = NULL;
669
670     bool           b_rtsp_tcp = false;
671     int            i_client_port;
672     int            i_return = VLC_SUCCESS;
673     unsigned int   i_buffer = 0;
674     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
675
676     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
677                     var_GetBool( p_demux, "rtsp-http" );
678     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
679
680     /* Create the session from the SDP */
681     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
682     {
683         msg_Err( p_demux, "Could not create the RTSP Session: %s",
684             p_sys->env->getResultMsg() );
685         return VLC_EGENERIC;
686     }
687
688     /* Initialise each media subsession */
689     iter = new MediaSubsessionIterator( *p_sys->ms );
690     while( ( sub = iter->next() ) != NULL )
691     {
692         Boolean bInit;
693         live_track_t *tk;
694
695         if( !vlc_object_alive (p_demux) || p_demux->b_error )
696         {
697             delete iter;
698             return VLC_EGENERIC;
699         }
700
701         /* Value taken from mplayer */
702         if( !strcmp( sub->mediumName(), "audio" ) )
703             i_buffer = 100000;
704         else if( !strcmp( sub->mediumName(), "video" ) )
705             i_buffer = 2000000;
706         else continue;
707
708         if( i_client_port != -1 )
709         {
710             sub->setClientPortNum( i_client_port );
711             i_client_port += 2;
712         }
713
714         if( strcasestr( sub->codecName(), "REAL" ) )
715         {
716             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
717             p_sys->b_real = true; /* This is a problem, we'll handle it later */
718             continue;
719         }
720
721         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
722             bInit = sub->initiate( 4 ); /* Constant ? */
723         else
724             bInit = sub->initiate();
725
726         if( !bInit )
727         {
728             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
729                       sub->mediumName(), sub->codecName(),
730                       p_sys->env->getResultMsg() );
731         }
732         else
733         {
734             if( sub->rtpSource() != NULL )
735             {
736                 int fd = sub->rtpSource()->RTPgs()->socketNum();
737
738                 /* Increase the buffer size */
739                 if( i_buffer > 0 )
740                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
741
742                 /* Increase the RTP reorder timebuffer just a bit */
743                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
744             }
745             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
746                      sub->codecName() );
747
748             /* Issue the SETUP */
749             if( p_sys->rtsp )
750             {
751                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
752                                            b_rtsp_tcp ? True : False,
753                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
754                 {
755                     /* if we get an unsupported transport error, toggle TCP use and try again */
756                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
757                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
758                                            b_rtsp_tcp ? False : True,
759                                            False ) )
760                     {
761                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
762                                  sub->codecName(), p_sys->env->getResultMsg() );
763                         continue;
764                     }
765                 }
766             }
767
768             /* Check if we will receive data from this subsession for this track */
769             if( sub->readSource() == NULL ) continue;
770             if( !p_sys->b_multicast )
771             {
772                 /* Check, because we need diff. rollover behaviour for multicast */
773                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
774             }
775
776             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
777             if( !tk )
778             {
779                 delete iter;
780                 return VLC_ENOMEM;
781             }
782             tk->p_demux     = p_demux;
783             tk->sub         = sub;
784             tk->p_es        = NULL;
785             tk->b_quicktime = false;
786             tk->b_asf       = false;
787             tk->b_muxed     = false;
788             tk->b_discard_trunc = false;
789             tk->p_out_muxed = NULL;
790             tk->waiting     = 0;
791             tk->b_rtcp_sync = false;
792             tk->i_pts       = 0;
793             tk->i_npt       = 0.;
794             tk->i_buffer    = 65536;
795             tk->p_buffer    = (uint8_t *)malloc( 65536 );
796             if( !tk->p_buffer )
797             {
798                 free( tk );
799                 delete iter;
800                 return VLC_ENOMEM;
801             }
802
803             /* Value taken from mplayer */
804             if( !strcmp( sub->mediumName(), "audio" ) )
805             {
806                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
807                 tk->fmt.audio.i_channels = sub->numChannels();
808                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
809
810                 if( !strcmp( sub->codecName(), "MPA" ) ||
811                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
812                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
813                 {
814                     tk->fmt.i_codec = VLC_CODEC_MPGA;
815                     tk->fmt.audio.i_rate = 0;
816                 }
817                 else if( !strcmp( sub->codecName(), "AC3" ) )
818                 {
819                     tk->fmt.i_codec = VLC_CODEC_A52;
820                     tk->fmt.audio.i_rate = 0;
821                 }
822                 else if( !strcmp( sub->codecName(), "L16" ) )
823                 {
824                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
825                     tk->fmt.audio.i_bitspersample = 16;
826                 }
827                 else if( !strcmp( sub->codecName(), "L8" ) )
828                 {
829                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
830                     tk->fmt.audio.i_bitspersample = 8;
831                 }
832                 else if( !strcmp( sub->codecName(), "PCMU" ) )
833                 {
834                     tk->fmt.i_codec = VLC_CODEC_MULAW;
835                 }
836                 else if( !strcmp( sub->codecName(), "PCMA" ) )
837                 {
838                     tk->fmt.i_codec = VLC_CODEC_ALAW;
839                 }
840                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
841                 {
842                     tk->fmt.i_codec = VLC_CODEC_ADPCM_G726;
843                     tk->fmt.audio.i_rate = 8000;
844                     tk->fmt.audio.i_channels = 1;
845                     if( !strcmp( sub->codecName()+5, "40" ) )
846                         tk->fmt.i_bitrate = 40000;
847                     else if( !strcmp( sub->codecName()+5, "32" ) )
848                         tk->fmt.i_bitrate = 32000;
849                     else if( !strcmp( sub->codecName()+5, "24" ) )
850                         tk->fmt.i_bitrate = 24000;
851                     else if( !strcmp( sub->codecName()+5, "16" ) )
852                         tk->fmt.i_bitrate = 16000;
853                 }
854                 else if( !strcmp( sub->codecName(), "AMR" ) )
855                 {
856                     tk->fmt.i_codec = VLC_CODEC_AMR_NB;
857                 }
858                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
859                 {
860                     tk->fmt.i_codec = VLC_CODEC_AMR_WB;
861                 }
862                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
863                 {
864                     unsigned int i_extra;
865                     uint8_t      *p_extra;
866
867                     tk->fmt.i_codec = VLC_CODEC_MP4A;
868
869                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
870                                                              i_extra ) ) )
871                     {
872                         tk->fmt.i_extra = i_extra;
873                         tk->fmt.p_extra = malloc( i_extra );
874                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
875                         delete[] p_extra;
876                     }
877                     /* Because the "faad" decoder does not handle the LATM data length field
878                        at the start of each returned LATM frame, tell the RTP source to omit it. */
879                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
880                 }
881                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
882                 {
883                     unsigned int i_extra;
884                     uint8_t      *p_extra;
885
886                     tk->fmt.i_codec = VLC_CODEC_MP4A;
887
888                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
889                                                            i_extra ) ) )
890                     {
891                         tk->fmt.i_extra = i_extra;
892                         tk->fmt.p_extra = malloc( i_extra );
893                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
894                         delete[] p_extra;
895                     }
896                 }
897                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
898                 {
899                     tk->b_asf = true;
900                     if( p_sys->p_out_asf == NULL )
901                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
902                                                             p_demux->out );
903                 }
904                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
905                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
906                 {
907                     tk->b_quicktime = true;
908                 }
909                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
910                 {
911                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
912                     if ( sub->rtpTimestampFrequency() )
913                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
914                     else
915                     {
916                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
917                         tk->fmt.audio.i_rate = 8000;
918                     }
919                 }
920             }
921             else if( !strcmp( sub->mediumName(), "video" ) )
922             {
923                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
924                 if( !strcmp( sub->codecName(), "MPV" ) )
925                 {
926                     tk->fmt.i_codec = VLC_CODEC_MPGV;
927                 }
928                 else if( !strcmp( sub->codecName(), "H263" ) ||
929                          !strcmp( sub->codecName(), "H263-1998" ) ||
930                          !strcmp( sub->codecName(), "H263-2000" ) )
931                 {
932                     tk->fmt.i_codec = VLC_CODEC_H263;
933                 }
934                 else if( !strcmp( sub->codecName(), "H261" ) )
935                 {
936                     tk->fmt.i_codec = VLC_CODEC_H261;
937                 }
938                 else if( !strcmp( sub->codecName(), "H264" ) )
939                 {
940                     unsigned int i_extra = 0;
941                     uint8_t      *p_extra = NULL;
942
943                     tk->fmt.i_codec = VLC_CODEC_H264;
944                     tk->fmt.b_packetized = false;
945
946                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
947                                                     i_extra ) ) )
948                     {
949                         tk->fmt.i_extra = i_extra;
950                         tk->fmt.p_extra = malloc( i_extra );
951                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
952
953                         delete[] p_extra;
954                     }
955                 }
956                 else if( !strcmp( sub->codecName(), "JPEG" ) )
957                 {
958                     tk->fmt.i_codec = VLC_CODEC_MJPG;
959                 }
960                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
961                 {
962                     unsigned int i_extra;
963                     uint8_t      *p_extra;
964
965                     tk->fmt.i_codec = VLC_CODEC_MP4V;
966
967                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
968                                                            i_extra ) ) )
969                     {
970                         tk->fmt.i_extra = i_extra;
971                         tk->fmt.p_extra = malloc( i_extra );
972                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
973                         delete[] p_extra;
974                     }
975                 }
976                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
977                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
978                          !strcmp( sub->codecName(), "X-QDM" ) ||
979                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
980                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
981                 {
982                     tk->b_quicktime = true;
983                 }
984                 else if( !strcmp( sub->codecName(), "MP2T" ) )
985                 {
986                     tk->b_muxed = true;
987                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
988                 }
989                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
990                          !strcmp( sub->codecName(), "MP1S" ) )
991                 {
992                     tk->b_muxed = true;
993                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
994                                                        p_demux->out );
995                 }
996                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
997                 {
998                     tk->b_asf = true;
999                     if( p_sys->p_out_asf == NULL )
1000                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
1001                                                             p_demux->out );;
1002                 }
1003                 else if( !strcmp( sub->codecName(), "DV" ) )
1004                 {
1005                     tk->b_muxed = true;
1006                     tk->b_discard_trunc = true;
1007                     tk->p_out_muxed = stream_DemuxNew( p_demux, "rawdv",
1008                                                        p_demux->out );
1009                 }
1010             }
1011
1012             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
1013             {
1014                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1015             }
1016
1017             if( sub->rtcpInstance() != NULL )
1018             {
1019                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1020             }
1021
1022             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1023             {
1024                 /* Append */
1025                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1026                 p_sys->track[p_sys->i_track++] = tk;
1027             }
1028             else
1029             {
1030                 /* BUG ??? */
1031                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1032                 es_format_Clean( &tk->fmt );
1033                 free( tk );
1034             }
1035         }
1036     }
1037     delete iter;
1038     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1039
1040     /* Retrieve the starttime if possible */
1041     p_sys->i_npt_start = p_sys->ms->playStartTime();
1042
1043     /* Retrieve the duration if possible */
1044     p_sys->i_npt_length = p_sys->ms->playEndTime();
1045
1046     /* */
1047     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1048
1049     /* */
1050     p_sys->b_no_data = true;
1051     p_sys->i_no_data_ti = 0;
1052
1053     return i_return;
1054 }
1055
1056 /*****************************************************************************
1057  * Play: starts the actual playback of the stream
1058  *****************************************************************************/
1059 static int Play( demux_t *p_demux )
1060 {
1061     demux_sys_t *p_sys = p_demux->p_sys;
1062
1063     if( p_sys->rtsp )
1064     {
1065         /* The PLAY */
1066         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1067         {
1068             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1069             return VLC_EGENERIC;
1070         }
1071
1072         /* Retrieve the timeout value and set up a timeout prevention thread */
1073         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1074         if( p_sys->i_timeout <= 0 )
1075             p_sys->i_timeout = 60; /* default value from RFC2326 */
1076
1077         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1078         if( !p_sys->p_timeout && p_sys->b_get_param )
1079         {
1080             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1081             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1082             if( p_sys->p_timeout )
1083             {
1084                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1085                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1086                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1087                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1088                 {
1089                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1090                     free( p_sys->p_timeout );
1091                     p_sys->p_timeout = NULL;
1092                 }
1093                 else
1094                     msg_Dbg( p_demux, "spawned timeout thread" );
1095             }
1096             else
1097                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1098         }
1099     }
1100     p_sys->i_pcr = 0;
1101
1102     /* Retrieve the starttime if possible */
1103     p_sys->i_npt_start = p_sys->ms->playStartTime();
1104     p_sys->i_npt_length = p_sys->ms->playEndTime();
1105
1106     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1107     return VLC_SUCCESS;
1108 }
1109
1110
1111 /*****************************************************************************
1112  * Demux:
1113  *****************************************************************************/
1114 static int Demux( demux_t *p_demux )
1115 {
1116     demux_sys_t    *p_sys = p_demux->p_sys;
1117     TaskToken      task;
1118
1119     bool            b_send_pcr = true;
1120     int64_t         i_pcr = 0;
1121     int             i;
1122
1123     /* Check if we need to send the server a Keep-A-Live signal */
1124     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1125     {
1126         char *psz_bye = NULL;
1127         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1128         p_sys->b_timeout_call = false;
1129     }
1130
1131     for( i = 0; i < p_sys->i_track; i++ )
1132     {
1133         live_track_t *tk = p_sys->track[i];
1134
1135         if( tk->b_asf || tk->b_muxed )
1136             b_send_pcr = false;
1137 #if 0
1138         if( i_pcr == 0 )
1139         {
1140             i_pcr = tk->i_pts;
1141         }
1142         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1143         {
1144             i_pcr = tk->i_pts ;
1145         }
1146 #endif
1147     }
1148     if( p_sys->i_pcr > 0 )
1149     {
1150         if( b_send_pcr )
1151             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1152     }
1153
1154     /* First warn we want to read data */
1155     p_sys->event = 0;
1156     for( i = 0; i < p_sys->i_track; i++ )
1157     {
1158         live_track_t *tk = p_sys->track[i];
1159
1160         if( tk->waiting == 0 )
1161         {
1162             tk->waiting = 1;
1163             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1164                                           StreamRead, tk, StreamClose, tk );
1165         }
1166     }
1167     /* Create a task that will be called if we wait more than 300ms */
1168     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1169
1170     /* Do the read */
1171     p_sys->scheduler->doEventLoop( &p_sys->event );
1172
1173     /* remove the task */
1174     p_sys->scheduler->unscheduleDelayedTask( task );
1175
1176     /* Check for gap in pts value */
1177     for( i = 0; i < p_sys->i_track; i++ )
1178     {
1179         live_track_t *tk = p_sys->track[i];
1180
1181         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1182             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1183         {
1184             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1185
1186             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1187             tk->b_rtcp_sync = true;
1188             /* reset PCR */
1189             tk->i_pts = 0;
1190             tk->i_npt = 0.;
1191             p_sys->i_pcr = 0;
1192             p_sys->i_npt = 0.;
1193             i_pcr = 0;
1194         }
1195     }
1196
1197     if( p_sys->b_multicast && p_sys->b_no_data &&
1198         ( p_sys->i_no_data_ti > 120 ) )
1199     {
1200         /* FIXME Make this configurable
1201         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1202         return 0;
1203         */
1204     }
1205     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1206              ( p_sys->i_no_data_ti > 34 ) )
1207     {
1208         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1209                                 var_GetBool( p_demux, "rtsp-http" );
1210
1211         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1212         {
1213             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1214             if( RollOverTcp( p_demux ) )
1215             {
1216                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1217                 return 0;
1218             }
1219             return 1;
1220         }
1221         msg_Err( p_demux, "no data received in 10s, aborting" );
1222         return 0;
1223     }
1224     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1225     {
1226         /* EOF ? */
1227         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1228         return 0;
1229     }
1230     return p_demux->b_error ? 0 : 1;
1231 }
1232
1233 /*****************************************************************************
1234  * Control:
1235  *****************************************************************************/
1236 static int Control( demux_t *p_demux, int i_query, va_list args )
1237 {
1238     demux_sys_t *p_sys = p_demux->p_sys;
1239     int64_t *pi64, i64;
1240     double  *pf, f;
1241     bool *pb, *pb2, b_bool;
1242     int *pi_int;
1243
1244     switch( i_query )
1245     {
1246         case DEMUX_GET_TIME:
1247             pi64 = (int64_t*)va_arg( args, int64_t * );
1248             if( p_sys->i_npt > 0 )
1249             {
1250                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1251                 return VLC_SUCCESS;
1252             }
1253             return VLC_EGENERIC;
1254
1255         case DEMUX_GET_LENGTH:
1256             pi64 = (int64_t*)va_arg( args, int64_t * );
1257             if( p_sys->i_npt_length > 0 )
1258             {
1259                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1260                 return VLC_SUCCESS;
1261             }
1262             return VLC_EGENERIC;
1263
1264         case DEMUX_GET_POSITION:
1265             pf = (double*)va_arg( args, double* );
1266             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1267             {
1268                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1269                 return VLC_SUCCESS;
1270             }
1271             return VLC_EGENERIC;
1272
1273         case DEMUX_SET_POSITION:
1274         case DEMUX_SET_TIME:
1275             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1276             {
1277                 int i;
1278                 float time;
1279
1280                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1281                 {
1282                     i64 = (int64_t)va_arg( args, int64_t );
1283                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1284                 }
1285                 else if( i_query == DEMUX_SET_TIME )
1286                     return VLC_EGENERIC;
1287                 else
1288                 {
1289                     f = (double)va_arg( args, double );
1290                     time = f * (double)p_sys->i_npt_length;   /* in second */
1291                 }
1292
1293                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1294                 {
1295                     msg_Err( p_demux, "PLAY failed %s",
1296                         p_sys->env->getResultMsg() );
1297                     return VLC_EGENERIC;
1298                 }
1299                 p_sys->i_pcr = 0;
1300
1301                 /* Retrieve RTP-Info values */
1302                 for( i = 0; i < p_sys->i_track; i++ )
1303                 {
1304                     p_sys->track[i]->b_rtcp_sync = false;
1305                     p_sys->track[i]->i_pts = 0;
1306                 }
1307
1308                 /* Retrieve the starttime if possible */
1309                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1310
1311                 /* Retrieve the duration if possible */
1312                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1313
1314                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1315                 return VLC_SUCCESS;
1316             }
1317             return VLC_EGENERIC;
1318
1319         /* Special for access_demux */
1320         case DEMUX_CAN_PAUSE:
1321         case DEMUX_CAN_SEEK:
1322             pb = (bool*)va_arg( args, bool * );
1323             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1324                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1325                 *pb = true;
1326             else
1327                 *pb = false;
1328             return VLC_SUCCESS;
1329
1330         case DEMUX_CAN_CONTROL_PACE:
1331             pb = (bool*)va_arg( args, bool * );
1332
1333 #if 1       /* Disable for now until we have a clock synchro algo
1334              * which works with something else than MPEG over UDP */
1335             *pb = false;
1336 #else
1337             *pb = true;
1338 #endif
1339             return VLC_SUCCESS;
1340
1341         case DEMUX_CAN_CONTROL_RATE:
1342             pb = (bool*)va_arg( args, bool * );
1343             pb2 = (bool*)va_arg( args, bool * );
1344
1345             *pb = (p_sys->rtsp != NULL) &&
1346                     (p_sys->i_npt_length > 0) &&
1347                     !var_GetBool( p_demux, "rtsp-kasenna" );
1348             *pb2 = false;
1349             return VLC_SUCCESS;
1350
1351         case DEMUX_SET_RATE:
1352         {
1353             double f_scale, f_old_scale;
1354
1355             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1356                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1357                 return VLC_EGENERIC;
1358
1359             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1360              * supports Scale:
1361              *
1362              * "[...] should try to approximate the viewing rate, but
1363              *  may restrict the range of scale values that it supports.
1364              *  The response MUST contain the actual scale value chosen
1365              *  by the server."
1366              *
1367              * Scale = 1 indicates normal play
1368              * Scale > 1 indicates fast forward
1369              * Scale < 1 && Scale > 0 indicates slow motion
1370              * Scale < 0 value indicates rewind
1371              */
1372
1373             pi_int = (int*)va_arg( args, int * );
1374             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1375             f_old_scale = p_sys->ms->scale();
1376
1377             /* Passing -1 for the start and end time will mean liveMedia won't
1378              * create a Range: section for the RTSP message. The server should
1379              * pick up from the current position */
1380             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1381             {
1382                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1383                         p_sys->env->getResultMsg() );
1384                 return VLC_EGENERIC;
1385             }
1386
1387             if( p_sys->ms->scale() == f_old_scale )
1388             {
1389                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1390                           p_sys->ms->scale() );
1391                 return VLC_EGENERIC;
1392             }
1393
1394             /* ReSync the stream */
1395             p_sys->i_npt_start = 0;
1396             p_sys->i_pcr = 0;
1397             p_sys->i_npt = 0.0;
1398
1399             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1400             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1401             return VLC_SUCCESS;
1402         }
1403
1404         case DEMUX_SET_PAUSE_STATE:
1405         {
1406             int i;
1407
1408             b_bool = (bool)va_arg( args, int );
1409             if( p_sys->rtsp == NULL )
1410                 return VLC_EGENERIC;
1411
1412             /* FIXME */
1413             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1414                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1415                        -1 ) ) )
1416             {
1417                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1418                     return VLC_EGENERIC;
1419             }
1420
1421             /* When we Pause, we'll need the TimeoutPrevention thread to
1422              * handle sending the "Keep Alive" message to the server.
1423              * Unfortunately Live555 isn't thread safe and so can't
1424              * do this normally while the main Demux thread is handling
1425              * a live stream. We end up with the Timeout thread blocking
1426              * waiting for a response from the server. So when we PAUSE
1427              * we set a flag that the TimeoutPrevention function will check
1428              * and if it's set, it will trigger the GET_PARAMETER message */
1429             if( b_bool && p_sys->p_timeout != NULL )
1430                 p_sys->p_timeout->b_handle_keep_alive = true;
1431             else if( !b_bool && p_sys->p_timeout != NULL )
1432                 p_sys->p_timeout->b_handle_keep_alive = false;
1433
1434             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1435             {
1436                 live_track_t *tk = p_sys->track[i];
1437                 tk->b_rtcp_sync = false;
1438                 tk->i_pts = 0;
1439                 p_sys->i_pcr = 0;
1440                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1441             }
1442
1443             /* Retrieve the starttime if possible */
1444             p_sys->i_npt_start = p_sys->ms->playStartTime();
1445
1446             /* Retrieve the duration if possible */
1447             p_sys->i_npt_length = p_sys->ms->playEndTime();
1448
1449             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1450             return VLC_SUCCESS;
1451         }
1452         case DEMUX_GET_TITLE_INFO:
1453         case DEMUX_SET_TITLE:
1454         case DEMUX_SET_SEEKPOINT:
1455             return VLC_EGENERIC;
1456
1457         case DEMUX_GET_PTS_DELAY:
1458             pi64 = (int64_t*)va_arg( args, int64_t * );
1459             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1460             return VLC_SUCCESS;
1461
1462         default:
1463             return VLC_EGENERIC;
1464     }
1465 }
1466
1467 /*****************************************************************************
1468  * RollOverTcp: reopen the rtsp into TCP mode
1469  * XXX: ugly, a lot of code are duplicated from Open()
1470  * This should REALLY be fixed
1471  *****************************************************************************/
1472 static int RollOverTcp( demux_t *p_demux )
1473 {
1474     demux_sys_t *p_sys = p_demux->p_sys;
1475     int i, i_return;
1476
1477     var_SetBool( p_demux, "rtsp-tcp", true );
1478
1479     /* We close the old RTSP session */
1480     for( i = 0; i < p_sys->i_track; i++ )
1481     {
1482         live_track_t *tk = p_sys->track[i];
1483
1484         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1485         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1486         es_format_Clean( &tk->fmt );
1487         free( tk->p_buffer );
1488         free( tk );
1489     }
1490     if( p_sys->i_track ) free( p_sys->track );
1491     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1492
1493     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1494     Medium::close( p_sys->ms );
1495     RTSPClient::close( p_sys->rtsp );
1496
1497     p_sys->ms = NULL;
1498     p_sys->rtsp = NULL;
1499     p_sys->track = NULL;
1500     p_sys->i_track = 0;
1501     p_sys->b_no_data = true;
1502     p_sys->i_no_data_ti = 0;
1503
1504     /* Reopen rtsp client */
1505     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1506     {
1507         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1508                  p_sys->psz_path );
1509         goto error;
1510     }
1511
1512     if( p_sys->p_sdp == NULL )
1513     {
1514         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1515         goto error;
1516     }
1517
1518     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1519     {
1520         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1521         goto error;
1522     }
1523
1524     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1525         goto error;
1526
1527     return VLC_SUCCESS;
1528
1529 error:
1530     return VLC_EGENERIC;
1531 }
1532
1533
1534 /*****************************************************************************
1535  *
1536  *****************************************************************************/
1537 static void StreamRead( void *p_private, unsigned int i_size,
1538                         unsigned int i_truncated_bytes, struct timeval pts,
1539                         unsigned int duration )
1540 {
1541     live_track_t   *tk = (live_track_t*)p_private;
1542     demux_t        *p_demux = tk->p_demux;
1543     demux_sys_t    *p_sys = p_demux->p_sys;
1544     block_t        *p_block;
1545
1546     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1547
1548     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1549         (int64_t)pts.tv_usec;
1550
1551     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1552     i_pts &= INT64_C(0x00ffffffffffffff);
1553
1554     /* Retrieve NPT for this pts */
1555     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1556
1557     if( tk->b_quicktime && tk->p_es == NULL )
1558     {
1559         QuickTimeGenericRTPSource *qtRTPSource =
1560             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1561         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1562         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1563
1564         if( tk->fmt.i_cat == VIDEO_ES ) {
1565             if( qtState.sdAtomSize < 16 + 32 )
1566             {
1567                 /* invalid */
1568                 p_sys->event = 0xff;
1569                 tk->waiting = 0;
1570                 return;
1571             }
1572             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1573             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1574             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1575
1576             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1577             {
1578                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1579                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1580                                   + qtRTPSource->qtState.sdAtomSize;
1581                 while (pos+8 < endpos) {
1582                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1583                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1584                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1585                         atomLength > 8 &&
1586                         atomLength <= INT_MAX )
1587                     {
1588                         tk->fmt.i_extra = atomLength-8;
1589                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1590                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1591                         break;
1592                     }
1593                     pos += atomLength;
1594                 }
1595             }
1596             else
1597             {
1598                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1599                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1600                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1601             }
1602         }
1603         else {
1604             if( qtState.sdAtomSize < 4 )
1605             {
1606                 /* invalid */
1607                 p_sys->event = 0xff;
1608                 tk->waiting = 0;
1609                 return;
1610             }
1611             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1612         }
1613         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1614     }
1615
1616 #if 0
1617     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1618              i_size,
1619              pts.tv_sec * 1000000LL + pts.tv_usec );
1620 #endif
1621
1622     /* grow buffer if it looks like buffer is too small, but don't eat
1623      * up all the memory on strange streams */
1624     if( i_truncated_bytes > 0 )
1625     {
1626         if( tk->i_buffer < 2000000 )
1627         {
1628             void *p_tmp;
1629             msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1630             msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1631             p_tmp = realloc( tk->p_buffer, tk->i_buffer * 2 );
1632             if( p_tmp == NULL )
1633             {
1634                 msg_Warn( p_demux, "realloc failed" );
1635             }
1636             else
1637             {
1638                 tk->p_buffer = (uint8_t*)p_tmp;
1639                 tk->i_buffer *= 2;
1640             }
1641         }
1642
1643         if( tk->b_discard_trunc )
1644         {
1645             p_sys->event = 0xff;
1646             tk->waiting = 0;
1647             return;
1648         }
1649     }
1650
1651     assert( i_size <= tk->i_buffer );
1652
1653     if( tk->fmt.i_codec == VLC_CODEC_AMR_NB ||
1654         tk->fmt.i_codec == VLC_CODEC_AMR_WB )
1655     {
1656         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1657
1658         p_block = block_New( p_demux, i_size + 1 );
1659         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1660         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1661     }
1662     else if( tk->fmt.i_codec == VLC_CODEC_H261 )
1663     {
1664         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1665         uint32_t header = h261Source->lastSpecialHeader();
1666         p_block = block_New( p_demux, i_size + 4 );
1667         memcpy( p_block->p_buffer, &header, 4 );
1668         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1669
1670         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1671             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1672     }
1673     else if( tk->fmt.i_codec == VLC_CODEC_H264 )
1674     {
1675         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1676             msg_Warn( p_demux, "unsupported NAL type for H264" );
1677
1678         /* Normal NAL type */
1679         p_block = block_New( p_demux, i_size + 4 );
1680         p_block->p_buffer[0] = 0x00;
1681         p_block->p_buffer[1] = 0x00;
1682         p_block->p_buffer[2] = 0x00;
1683         p_block->p_buffer[3] = 0x01;
1684         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1685     }
1686     else if( tk->b_asf )
1687     {
1688         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1689         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1690
1691         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1692     }
1693     else
1694     {
1695         p_block = block_New( p_demux, i_size );
1696         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1697     }
1698
1699     if( p_sys->i_pcr < i_pts )
1700     {
1701         p_sys->i_pcr = i_pts;
1702     }
1703
1704     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1705     {
1706         p_block->i_pts = i_pts;
1707     }
1708
1709     /* Update our global npt value */
1710     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1711         p_sys->i_npt = tk->i_npt;
1712
1713     if( !tk->b_muxed )
1714     {
1715         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1716         p_block->i_dts = ( tk->fmt.i_codec == VLC_CODEC_MPGV ) ? 0 : i_pts;
1717     }
1718
1719     if( tk->b_muxed )
1720     {
1721         stream_DemuxSend( tk->p_out_muxed, p_block );
1722     }
1723     else if( tk->b_asf )
1724     {
1725         stream_DemuxSend( p_sys->p_out_asf, p_block );
1726     }
1727     else
1728     {
1729         es_out_Send( p_demux->out, tk->p_es, p_block );
1730     }
1731
1732     /* warn that's ok */
1733     p_sys->event = 0xff;
1734
1735     /* we have read data */
1736     tk->waiting = 0;
1737     p_demux->p_sys->b_no_data = false;
1738     p_demux->p_sys->i_no_data_ti = 0;
1739
1740     if( i_pts > 0 && !tk->b_muxed )
1741     {
1742         tk->i_pts = i_pts;
1743     }
1744 }
1745
1746 /*****************************************************************************
1747  *
1748  *****************************************************************************/
1749 static void StreamClose( void *p_private )
1750 {
1751     live_track_t   *tk = (live_track_t*)p_private;
1752     demux_t        *p_demux = tk->p_demux;
1753     demux_sys_t    *p_sys = p_demux->p_sys;
1754
1755     msg_Dbg( p_demux, "StreamClose" );
1756
1757     p_sys->event = 0xff;
1758     p_demux->b_error = true;
1759 }
1760
1761
1762 /*****************************************************************************
1763  *
1764  *****************************************************************************/
1765 static void TaskInterrupt( void *p_private )
1766 {
1767     demux_t *p_demux = (demux_t*)p_private;
1768
1769     p_demux->p_sys->i_no_data_ti++;
1770
1771     /* Avoid lock */
1772     p_demux->p_sys->event = 0xff;
1773 }
1774
1775 /*****************************************************************************
1776  *
1777  *****************************************************************************/
1778 static void* TimeoutPrevention( void *p_data )
1779 {
1780     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1781
1782     for( ;; )
1783     {
1784         /* Voodoo (= no) thread safety here! *Ahem* */
1785         if( p_timeout->b_handle_keep_alive )
1786         {
1787             char *psz_bye = NULL;
1788             int canc = vlc_savecancel ();
1789
1790             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1791             vlc_restorecancel (canc);
1792         }
1793         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1794
1795         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1796     }
1797     assert(0); /* dead code */
1798 }
1799
1800 /*****************************************************************************
1801  *
1802  *****************************************************************************/
1803 static int ParseASF( demux_t *p_demux )
1804 {
1805     demux_sys_t    *p_sys = p_demux->p_sys;
1806
1807     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1808     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1809     char *psz_end;
1810     block_t *p_header;
1811
1812     /* Parse the asf header */
1813     if( psz_asf == NULL )
1814         return VLC_EGENERIC;
1815
1816     psz_asf += strlen( psz_marker );
1817     psz_asf = strdup( psz_asf );    /* Duplicate it */
1818     psz_end = strchr( psz_asf, '\n' );
1819
1820     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1821         *psz_end-- = '\0';
1822
1823     if( psz_asf >= psz_end )
1824     {
1825         free( psz_asf );
1826         return VLC_EGENERIC;
1827     }
1828
1829     /* Always smaller */
1830     p_header = block_New( p_demux, psz_end - psz_asf );
1831     p_header->i_buffer = vlc_b64_decode_binary_to_buffer( p_header->p_buffer,
1832                                                p_header->i_buffer, psz_asf );
1833     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1834     if( p_header->i_buffer <= 0 )
1835     {
1836         free( psz_asf );
1837         return VLC_EGENERIC;
1838     }
1839
1840     /* Parse it to get packet size */
1841     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1842
1843     /* Send it to demuxer */
1844     stream_DemuxSend( p_sys->p_out_asf, p_header );
1845
1846     free( psz_asf );
1847     return VLC_SUCCESS;
1848 }
1849
1850
1851 static unsigned char* parseH264ConfigStr( char const* configStr,
1852                                           unsigned int& configSize )
1853 {
1854     char *dup, *psz;
1855     size_t i_records = 1;
1856
1857     configSize = 0;
1858
1859     if( configStr == NULL || *configStr == '\0' )
1860         return NULL;
1861
1862     psz = dup = strdup( configStr );
1863
1864     /* Count the number of commas */
1865     for( psz = dup; *psz != '\0'; ++psz )
1866     {
1867         if( *psz == ',')
1868         {
1869             ++i_records;
1870             *psz = '\0';
1871         }
1872     }
1873
1874     size_t configMax = 5*strlen(dup);
1875     unsigned char *cfg = new unsigned char[configMax];
1876     psz = dup;
1877     for( size_t i = 0; i < i_records; ++i )
1878     {
1879         cfg[configSize++] = 0x00;
1880         cfg[configSize++] = 0x00;
1881         cfg[configSize++] = 0x00;
1882         cfg[configSize++] = 0x01;
1883
1884         configSize += vlc_b64_decode_binary_to_buffer( cfg+configSize,
1885                                           configMax-configSize, psz );
1886         psz += strlen(psz)+1;
1887     }
1888
1889     free( dup );
1890     return cfg;
1891 }