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[vlc] / 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", psz_user );
624                 goto describe;
625             }
626         }
627         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
628         {
629             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
630             vlc_value_t val;
631             val.b_bool = true;
632             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
633             var_Set( p_demux, "rtsp-http", val );
634             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
635             p_sys->rtsp = NULL;
636             goto createnew;
637         }
638         else
639         {
640             msg_Dbg( p_demux, "connection timeout" );
641             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
642             p_sys->rtsp = NULL;
643         }
644         i_ret = VLC_EGENERIC;
645     }
646
647     /* malloc-ated copy */
648     free( psz_url );
649     free( psz_user );
650     free( psz_pwd );
651
652     free( p_sys->p_sdp );
653     p_sys->p_sdp = NULL;
654     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
655     delete[] p_sdp;
656
657     return i_ret;
658 }
659
660 /*****************************************************************************
661  * SessionsSetup: prepares the subsessions and does the SETUP
662  *****************************************************************************/
663 static int SessionsSetup( demux_t *p_demux )
664 {
665     demux_sys_t             *p_sys  = p_demux->p_sys;
666     MediaSubsessionIterator *iter   = NULL;
667     MediaSubsession         *sub    = NULL;
668
669     bool           b_rtsp_tcp = false;
670     int            i_client_port;
671     int            i_return = VLC_SUCCESS;
672     unsigned int   i_buffer = 0;
673     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
674
675     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
676                     var_GetBool( p_demux, "rtsp-http" );
677     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
678
679     /* Create the session from the SDP */
680     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
681     {
682         msg_Err( p_demux, "Could not create the RTSP Session: %s",
683             p_sys->env->getResultMsg() );
684         return VLC_EGENERIC;
685     }
686
687     /* Initialise each media subsession */
688     iter = new MediaSubsessionIterator( *p_sys->ms );
689     while( ( sub = iter->next() ) != NULL )
690     {
691         Boolean bInit;
692         live_track_t *tk;
693
694         if( !vlc_object_alive (p_demux) || p_demux->b_error )
695         {
696             delete iter;
697             return VLC_EGENERIC;
698         }
699
700         /* Value taken from mplayer */
701         if( !strcmp( sub->mediumName(), "audio" ) )
702             i_buffer = 100000;
703         else if( !strcmp( sub->mediumName(), "video" ) )
704             i_buffer = 2000000;
705         else continue;
706
707         if( i_client_port != -1 )
708         {
709             sub->setClientPortNum( i_client_port );
710             i_client_port += 2;
711         }
712
713         if( strcasestr( sub->codecName(), "REAL" ) )
714         {
715             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
716             p_sys->b_real = true; /* This is a problem, we'll handle it later */
717             continue;
718         }
719
720         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
721             bInit = sub->initiate( 4 ); /* Constant ? */
722         else
723             bInit = sub->initiate();
724
725         if( !bInit )
726         {
727             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
728                       sub->mediumName(), sub->codecName(),
729                       p_sys->env->getResultMsg() );
730         }
731         else
732         {
733             if( sub->rtpSource() != NULL )
734             {
735                 int fd = sub->rtpSource()->RTPgs()->socketNum();
736
737                 /* Increase the buffer size */
738                 if( i_buffer > 0 )
739                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
740
741                 /* Increase the RTP reorder timebuffer just a bit */
742                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
743             }
744             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
745                      sub->codecName() );
746
747             /* Issue the SETUP */
748             if( p_sys->rtsp )
749             {
750                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
751                                            b_rtsp_tcp ? True : False,
752                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
753                 {
754                     /* if we get an unsupported transport error, toggle TCP use and try again */
755                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
756                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
757                                            b_rtsp_tcp ? False : True,
758                                            False ) )
759                     {
760                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
761                                  sub->codecName(), p_sys->env->getResultMsg() );
762                         continue;
763                     }
764                 }
765             }
766
767             /* Check if we will receive data from this subsession for this track */
768             if( sub->readSource() == NULL ) continue;
769             if( !p_sys->b_multicast )
770             {
771                 /* Check, because we need diff. rollover behaviour for multicast */
772                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
773             }
774
775             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
776             if( !tk )
777             {
778                 delete iter;
779                 return VLC_ENOMEM;
780             }
781             tk->p_demux     = p_demux;
782             tk->sub         = sub;
783             tk->p_es        = NULL;
784             tk->b_quicktime = false;
785             tk->b_asf       = false;
786             tk->b_muxed     = false;
787             tk->b_discard_trunc = false;
788             tk->p_out_muxed = NULL;
789             tk->waiting     = 0;
790             tk->b_rtcp_sync = false;
791             tk->i_pts       = 0;
792             tk->i_npt       = 0.;
793             tk->i_buffer    = 65536;
794             tk->p_buffer    = (uint8_t *)malloc( 65536 );
795             if( !tk->p_buffer )
796             {
797                 free( tk );
798                 delete iter;
799                 return VLC_ENOMEM;
800             }
801
802             /* Value taken from mplayer */
803             if( !strcmp( sub->mediumName(), "audio" ) )
804             {
805                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
806                 tk->fmt.audio.i_channels = sub->numChannels();
807                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
808
809                 if( !strcmp( sub->codecName(), "MPA" ) ||
810                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
811                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
812                 {
813                     tk->fmt.i_codec = VLC_CODEC_MPGA;
814                     tk->fmt.audio.i_rate = 0;
815                 }
816                 else if( !strcmp( sub->codecName(), "AC3" ) )
817                 {
818                     tk->fmt.i_codec = VLC_CODEC_A52;
819                     tk->fmt.audio.i_rate = 0;
820                 }
821                 else if( !strcmp( sub->codecName(), "L16" ) )
822                 {
823                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
824                     tk->fmt.audio.i_bitspersample = 16;
825                 }
826                 else if( !strcmp( sub->codecName(), "L8" ) )
827                 {
828                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
829                     tk->fmt.audio.i_bitspersample = 8;
830                 }
831                 else if( !strcmp( sub->codecName(), "PCMU" ) )
832                 {
833                     tk->fmt.i_codec = VLC_CODEC_MULAW;
834                 }
835                 else if( !strcmp( sub->codecName(), "PCMA" ) )
836                 {
837                     tk->fmt.i_codec = VLC_CODEC_ALAW;
838                 }
839                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
840                 {
841                     tk->fmt.i_codec = VLC_CODEC_ADPCM_G726;
842                     tk->fmt.audio.i_rate = 8000;
843                     tk->fmt.audio.i_channels = 1;
844                     if( !strcmp( sub->codecName()+5, "40" ) )
845                         tk->fmt.i_bitrate = 40000;
846                     else if( !strcmp( sub->codecName()+5, "32" ) )
847                         tk->fmt.i_bitrate = 32000;
848                     else if( !strcmp( sub->codecName()+5, "24" ) )
849                         tk->fmt.i_bitrate = 24000;
850                     else if( !strcmp( sub->codecName()+5, "16" ) )
851                         tk->fmt.i_bitrate = 16000;
852                 }
853                 else if( !strcmp( sub->codecName(), "AMR" ) )
854                 {
855                     tk->fmt.i_codec = VLC_CODEC_AMR_NB;
856                 }
857                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
858                 {
859                     tk->fmt.i_codec = VLC_CODEC_AMR_WB;
860                 }
861                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
862                 {
863                     unsigned int i_extra;
864                     uint8_t      *p_extra;
865
866                     tk->fmt.i_codec = VLC_CODEC_MP4A;
867
868                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
869                                                              i_extra ) ) )
870                     {
871                         tk->fmt.i_extra = i_extra;
872                         tk->fmt.p_extra = malloc( i_extra );
873                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
874                         delete[] p_extra;
875                     }
876                     /* Because the "faad" decoder does not handle the LATM data length field
877                        at the start of each returned LATM frame, tell the RTP source to omit it. */
878                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
879                 }
880                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
881                 {
882                     unsigned int i_extra;
883                     uint8_t      *p_extra;
884
885                     tk->fmt.i_codec = VLC_CODEC_MP4A;
886
887                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
888                                                            i_extra ) ) )
889                     {
890                         tk->fmt.i_extra = i_extra;
891                         tk->fmt.p_extra = malloc( i_extra );
892                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
893                         delete[] p_extra;
894                     }
895                 }
896                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
897                 {
898                     tk->b_asf = true;
899                     if( p_sys->p_out_asf == NULL )
900                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
901                                                             p_demux->out );
902                 }
903                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
904                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
905                 {
906                     tk->b_quicktime = true;
907                 }
908                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
909                 {
910                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
911                     if ( sub->rtpTimestampFrequency() )
912                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
913                     else
914                     {
915                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
916                         tk->fmt.audio.i_rate = 8000;
917                     }
918                 }
919             }
920             else if( !strcmp( sub->mediumName(), "video" ) )
921             {
922                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
923                 if( !strcmp( sub->codecName(), "MPV" ) )
924                 {
925                     tk->fmt.i_codec = VLC_CODEC_MPGV;
926                 }
927                 else if( !strcmp( sub->codecName(), "H263" ) ||
928                          !strcmp( sub->codecName(), "H263-1998" ) ||
929                          !strcmp( sub->codecName(), "H263-2000" ) )
930                 {
931                     tk->fmt.i_codec = VLC_CODEC_H263;
932                 }
933                 else if( !strcmp( sub->codecName(), "H261" ) )
934                 {
935                     tk->fmt.i_codec = VLC_CODEC_H261;
936                 }
937                 else if( !strcmp( sub->codecName(), "H264" ) )
938                 {
939                     unsigned int i_extra = 0;
940                     uint8_t      *p_extra = NULL;
941
942                     tk->fmt.i_codec = VLC_CODEC_H264;
943                     tk->fmt.b_packetized = false;
944
945                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
946                                                     i_extra ) ) )
947                     {
948                         tk->fmt.i_extra = i_extra;
949                         tk->fmt.p_extra = malloc( i_extra );
950                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
951
952                         delete[] p_extra;
953                     }
954                 }
955                 else if( !strcmp( sub->codecName(), "JPEG" ) )
956                 {
957                     tk->fmt.i_codec = VLC_CODEC_MJPG;
958                 }
959                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
960                 {
961                     unsigned int i_extra;
962                     uint8_t      *p_extra;
963
964                     tk->fmt.i_codec = VLC_CODEC_MP4V;
965
966                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
967                                                            i_extra ) ) )
968                     {
969                         tk->fmt.i_extra = i_extra;
970                         tk->fmt.p_extra = malloc( i_extra );
971                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
972                         delete[] p_extra;
973                     }
974                 }
975                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
976                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
977                          !strcmp( sub->codecName(), "X-QDM" ) ||
978                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
979                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
980                 {
981                     tk->b_quicktime = true;
982                 }
983                 else if( !strcmp( sub->codecName(), "MP2T" ) )
984                 {
985                     tk->b_muxed = true;
986                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
987                 }
988                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
989                          !strcmp( sub->codecName(), "MP1S" ) )
990                 {
991                     tk->b_muxed = true;
992                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
993                                                        p_demux->out );
994                 }
995                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
996                 {
997                     tk->b_asf = true;
998                     if( p_sys->p_out_asf == NULL )
999                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
1000                                                             p_demux->out );;
1001                 }
1002                 else if( !strcmp( sub->codecName(), "DV" ) )
1003                 {
1004                     tk->b_muxed = true;
1005                     tk->b_discard_trunc = true;
1006                     tk->p_out_muxed = stream_DemuxNew( p_demux, "rawdv",
1007                                                        p_demux->out );
1008                 }
1009             }
1010
1011             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
1012             {
1013                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1014             }
1015
1016             if( sub->rtcpInstance() != NULL )
1017             {
1018                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1019             }
1020
1021             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1022             {
1023                 /* Append */
1024                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1025                 p_sys->track[p_sys->i_track++] = tk;
1026             }
1027             else
1028             {
1029                 /* BUG ??? */
1030                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1031                 es_format_Clean( &tk->fmt );
1032                 free( tk );
1033             }
1034         }
1035     }
1036     delete iter;
1037     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1038
1039     /* Retrieve the starttime if possible */
1040     p_sys->i_npt_start = p_sys->ms->playStartTime();
1041
1042     /* Retrieve the duration if possible */
1043     p_sys->i_npt_length = p_sys->ms->playEndTime();
1044
1045     /* */
1046     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1047
1048     /* */
1049     p_sys->b_no_data = true;
1050     p_sys->i_no_data_ti = 0;
1051
1052     return i_return;
1053 }
1054
1055 /*****************************************************************************
1056  * Play: starts the actual playback of the stream
1057  *****************************************************************************/
1058 static int Play( demux_t *p_demux )
1059 {
1060     demux_sys_t *p_sys = p_demux->p_sys;
1061
1062     if( p_sys->rtsp )
1063     {
1064         /* The PLAY */
1065         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1066         {
1067             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1068             return VLC_EGENERIC;
1069         }
1070
1071         /* Retrieve the timeout value and set up a timeout prevention thread */
1072         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1073         if( p_sys->i_timeout <= 0 )
1074             p_sys->i_timeout = 60; /* default value from RFC2326 */
1075
1076         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1077         if( !p_sys->p_timeout && p_sys->b_get_param )
1078         {
1079             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1080             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1081             if( p_sys->p_timeout )
1082             {
1083                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1084                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1085                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1086                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1087                 {
1088                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1089                     free( p_sys->p_timeout );
1090                     p_sys->p_timeout = NULL;
1091                 }
1092                 else
1093                     msg_Dbg( p_demux, "spawned timeout thread" );
1094             }
1095             else
1096                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1097         }
1098     }
1099     p_sys->i_pcr = 0;
1100
1101     /* Retrieve the starttime if possible */
1102     p_sys->i_npt_start = p_sys->ms->playStartTime();
1103     p_sys->i_npt_length = p_sys->ms->playEndTime();
1104
1105     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1106     return VLC_SUCCESS;
1107 }
1108
1109
1110 /*****************************************************************************
1111  * Demux:
1112  *****************************************************************************/
1113 static int Demux( demux_t *p_demux )
1114 {
1115     demux_sys_t    *p_sys = p_demux->p_sys;
1116     TaskToken      task;
1117
1118     bool            b_send_pcr = true;
1119     int64_t         i_pcr = 0;
1120     int             i;
1121
1122     /* Check if we need to send the server a Keep-A-Live signal */
1123     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1124     {
1125         char *psz_bye = NULL;
1126         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1127         p_sys->b_timeout_call = false;
1128     }
1129
1130     for( i = 0; i < p_sys->i_track; i++ )
1131     {
1132         live_track_t *tk = p_sys->track[i];
1133
1134         if( tk->b_asf || tk->b_muxed )
1135             b_send_pcr = false;
1136 #if 0
1137         if( i_pcr == 0 )
1138         {
1139             i_pcr = tk->i_pts;
1140         }
1141         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1142         {
1143             i_pcr = tk->i_pts ;
1144         }
1145 #endif
1146     }
1147     if( p_sys->i_pcr > 0 )
1148     {
1149         if( b_send_pcr )
1150             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1151     }
1152
1153     /* First warn we want to read data */
1154     p_sys->event = 0;
1155     for( i = 0; i < p_sys->i_track; i++ )
1156     {
1157         live_track_t *tk = p_sys->track[i];
1158
1159         if( tk->waiting == 0 )
1160         {
1161             tk->waiting = 1;
1162             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1163                                           StreamRead, tk, StreamClose, tk );
1164         }
1165     }
1166     /* Create a task that will be called if we wait more than 300ms */
1167     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1168
1169     /* Do the read */
1170     p_sys->scheduler->doEventLoop( &p_sys->event );
1171
1172     /* remove the task */
1173     p_sys->scheduler->unscheduleDelayedTask( task );
1174
1175     /* Check for gap in pts value */
1176     for( i = 0; i < p_sys->i_track; i++ )
1177     {
1178         live_track_t *tk = p_sys->track[i];
1179
1180         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1181             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1182         {
1183             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1184
1185             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1186             tk->b_rtcp_sync = true;
1187             /* reset PCR */
1188             tk->i_pts = 0;
1189             tk->i_npt = 0.;
1190             p_sys->i_pcr = 0;
1191             p_sys->i_npt = 0.;
1192             i_pcr = 0;
1193         }
1194     }
1195
1196     if( p_sys->b_multicast && p_sys->b_no_data &&
1197         ( p_sys->i_no_data_ti > 120 ) )
1198     {
1199         /* FIXME Make this configurable
1200         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1201         return 0;
1202         */
1203     }
1204     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1205              ( p_sys->i_no_data_ti > 34 ) )
1206     {
1207         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1208                                 var_GetBool( p_demux, "rtsp-http" );
1209
1210         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1211         {
1212             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1213             if( RollOverTcp( p_demux ) )
1214             {
1215                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1216                 return 0;
1217             }
1218             return 1;
1219         }
1220         msg_Err( p_demux, "no data received in 10s, aborting" );
1221         return 0;
1222     }
1223     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1224     {
1225         /* EOF ? */
1226         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1227         return 0;
1228     }
1229     return p_demux->b_error ? 0 : 1;
1230 }
1231
1232 /*****************************************************************************
1233  * Control:
1234  *****************************************************************************/
1235 static int Control( demux_t *p_demux, int i_query, va_list args )
1236 {
1237     demux_sys_t *p_sys = p_demux->p_sys;
1238     int64_t *pi64, i64;
1239     double  *pf, f;
1240     bool *pb, *pb2, b_bool;
1241     int *pi_int;
1242
1243     switch( i_query )
1244     {
1245         case DEMUX_GET_TIME:
1246             pi64 = (int64_t*)va_arg( args, int64_t * );
1247             if( p_sys->i_npt > 0 )
1248             {
1249                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1250                 return VLC_SUCCESS;
1251             }
1252             return VLC_EGENERIC;
1253
1254         case DEMUX_GET_LENGTH:
1255             pi64 = (int64_t*)va_arg( args, int64_t * );
1256             if( p_sys->i_npt_length > 0 )
1257             {
1258                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1259                 return VLC_SUCCESS;
1260             }
1261             return VLC_EGENERIC;
1262
1263         case DEMUX_GET_POSITION:
1264             pf = (double*)va_arg( args, double* );
1265             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1266             {
1267                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1268                 return VLC_SUCCESS;
1269             }
1270             return VLC_EGENERIC;
1271
1272         case DEMUX_SET_POSITION:
1273         case DEMUX_SET_TIME:
1274             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1275             {
1276                 int i;
1277                 float time;
1278
1279                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1280                 {
1281                     i64 = (int64_t)va_arg( args, int64_t );
1282                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1283                 }
1284                 else if( i_query == DEMUX_SET_TIME )
1285                     return VLC_EGENERIC;
1286                 else
1287                 {
1288                     f = (double)va_arg( args, double );
1289                     time = f * (double)p_sys->i_npt_length;   /* in second */
1290                 }
1291
1292                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1293                 {
1294                     msg_Err( p_demux, "PLAY failed %s",
1295                         p_sys->env->getResultMsg() );
1296                     return VLC_EGENERIC;
1297                 }
1298                 p_sys->i_pcr = 0;
1299
1300                 /* Retrieve RTP-Info values */
1301                 for( i = 0; i < p_sys->i_track; i++ )
1302                 {
1303                     p_sys->track[i]->b_rtcp_sync = false;
1304                     p_sys->track[i]->i_pts = 0;
1305                 }
1306
1307                 /* Retrieve the starttime if possible */
1308                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1309
1310                 /* Retrieve the duration if possible */
1311                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1312
1313                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1314                 return VLC_SUCCESS;
1315             }
1316             return VLC_EGENERIC;
1317
1318         /* Special for access_demux */
1319         case DEMUX_CAN_PAUSE:
1320         case DEMUX_CAN_SEEK:
1321             pb = (bool*)va_arg( args, bool * );
1322             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1323                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1324                 *pb = true;
1325             else
1326                 *pb = false;
1327             return VLC_SUCCESS;
1328
1329         case DEMUX_CAN_CONTROL_PACE:
1330             pb = (bool*)va_arg( args, bool * );
1331
1332 #if 1       /* Disable for now until we have a clock synchro algo
1333              * which works with something else than MPEG over UDP */
1334             *pb = false;
1335 #else
1336             *pb = true;
1337 #endif
1338             return VLC_SUCCESS;
1339
1340         case DEMUX_CAN_CONTROL_RATE:
1341             pb = (bool*)va_arg( args, bool * );
1342             pb2 = (bool*)va_arg( args, bool * );
1343
1344             *pb = (p_sys->rtsp != NULL) &&
1345                     (p_sys->i_npt_length > 0) &&
1346                     !var_GetBool( p_demux, "rtsp-kasenna" );
1347             *pb2 = false;
1348             return VLC_SUCCESS;
1349
1350         case DEMUX_SET_RATE:
1351         {
1352             double f_scale, f_old_scale;
1353
1354             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1355                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1356                 return VLC_EGENERIC;
1357
1358             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1359              * supports Scale:
1360              *
1361              * "[...] should try to approximate the viewing rate, but
1362              *  may restrict the range of scale values that it supports.
1363              *  The response MUST contain the actual scale value chosen
1364              *  by the server."
1365              *
1366              * Scale = 1 indicates normal play
1367              * Scale > 1 indicates fast forward
1368              * Scale < 1 && Scale > 0 indicates slow motion
1369              * Scale < 0 value indicates rewind
1370              */
1371
1372             pi_int = (int*)va_arg( args, int * );
1373             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1374             f_old_scale = p_sys->ms->scale();
1375
1376             /* Passing -1 for the start and end time will mean liveMedia won't
1377              * create a Range: section for the RTSP message. The server should
1378              * pick up from the current position */
1379             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1380             {
1381                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1382                         p_sys->env->getResultMsg() );
1383                 return VLC_EGENERIC;
1384             }
1385
1386             if( p_sys->ms->scale() == f_old_scale )
1387             {
1388                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1389                           p_sys->ms->scale() );
1390                 return VLC_EGENERIC;
1391             }
1392
1393             /* ReSync the stream */
1394             p_sys->i_npt_start = 0;
1395             p_sys->i_pcr = 0;
1396             p_sys->i_npt = 0.0;
1397
1398             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1399             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1400             return VLC_SUCCESS;
1401         }
1402
1403         case DEMUX_SET_PAUSE_STATE:
1404         {
1405             int i;
1406
1407             b_bool = (bool)va_arg( args, int );
1408             if( p_sys->rtsp == NULL )
1409                 return VLC_EGENERIC;
1410
1411             /* FIXME */
1412             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1413                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1414                        -1 ) ) )
1415             {
1416                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1417                     return VLC_EGENERIC;
1418             }
1419
1420             /* When we Pause, we'll need the TimeoutPrevention thread to
1421              * handle sending the "Keep Alive" message to the server.
1422              * Unfortunately Live555 isn't thread safe and so can't
1423              * do this normally while the main Demux thread is handling
1424              * a live stream. We end up with the Timeout thread blocking
1425              * waiting for a response from the server. So when we PAUSE
1426              * we set a flag that the TimeoutPrevention function will check
1427              * and if it's set, it will trigger the GET_PARAMETER message */
1428             if( b_bool && p_sys->p_timeout != NULL )
1429                 p_sys->p_timeout->b_handle_keep_alive = true;
1430             else if( !b_bool && p_sys->p_timeout != NULL )
1431                 p_sys->p_timeout->b_handle_keep_alive = false;
1432
1433             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1434             {
1435                 live_track_t *tk = p_sys->track[i];
1436                 tk->b_rtcp_sync = false;
1437                 tk->i_pts = 0;
1438                 p_sys->i_pcr = 0;
1439                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1440             }
1441
1442             /* Retrieve the starttime if possible */
1443             p_sys->i_npt_start = p_sys->ms->playStartTime();
1444
1445             /* Retrieve the duration if possible */
1446             p_sys->i_npt_length = p_sys->ms->playEndTime();
1447
1448             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1449             return VLC_SUCCESS;
1450         }
1451         case DEMUX_GET_TITLE_INFO:
1452         case DEMUX_SET_TITLE:
1453         case DEMUX_SET_SEEKPOINT:
1454             return VLC_EGENERIC;
1455
1456         case DEMUX_GET_PTS_DELAY:
1457             pi64 = (int64_t*)va_arg( args, int64_t * );
1458             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1459             return VLC_SUCCESS;
1460
1461         default:
1462             return VLC_EGENERIC;
1463     }
1464 }
1465
1466 /*****************************************************************************
1467  * RollOverTcp: reopen the rtsp into TCP mode
1468  * XXX: ugly, a lot of code are duplicated from Open()
1469  * This should REALLY be fixed
1470  *****************************************************************************/
1471 static int RollOverTcp( demux_t *p_demux )
1472 {
1473     demux_sys_t *p_sys = p_demux->p_sys;
1474     int i, i_return;
1475
1476     var_SetBool( p_demux, "rtsp-tcp", true );
1477
1478     /* We close the old RTSP session */
1479     for( i = 0; i < p_sys->i_track; i++ )
1480     {
1481         live_track_t *tk = p_sys->track[i];
1482
1483         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1484         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1485         es_format_Clean( &tk->fmt );
1486         free( tk->p_buffer );
1487         free( tk );
1488     }
1489     if( p_sys->i_track ) free( p_sys->track );
1490     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1491
1492     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1493     Medium::close( p_sys->ms );
1494     RTSPClient::close( p_sys->rtsp );
1495
1496     p_sys->ms = NULL;
1497     p_sys->rtsp = NULL;
1498     p_sys->track = NULL;
1499     p_sys->i_track = 0;
1500     p_sys->b_no_data = true;
1501     p_sys->i_no_data_ti = 0;
1502
1503     /* Reopen rtsp client */
1504     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1505     {
1506         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1507                  p_sys->psz_path );
1508         goto error;
1509     }
1510
1511     if( p_sys->p_sdp == NULL )
1512     {
1513         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1514         goto error;
1515     }
1516
1517     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1518     {
1519         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1520         goto error;
1521     }
1522
1523     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1524         goto error;
1525
1526     return VLC_SUCCESS;
1527
1528 error:
1529     return VLC_EGENERIC;
1530 }
1531
1532
1533 /*****************************************************************************
1534  *
1535  *****************************************************************************/
1536 static void StreamRead( void *p_private, unsigned int i_size,
1537                         unsigned int i_truncated_bytes, struct timeval pts,
1538                         unsigned int duration )
1539 {
1540     live_track_t   *tk = (live_track_t*)p_private;
1541     demux_t        *p_demux = tk->p_demux;
1542     demux_sys_t    *p_sys = p_demux->p_sys;
1543     block_t        *p_block;
1544
1545     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1546
1547     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1548         (int64_t)pts.tv_usec;
1549
1550     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1551     i_pts &= INT64_C(0x00ffffffffffffff);
1552
1553     /* Retrieve NPT for this pts */
1554     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1555
1556     if( tk->b_quicktime && tk->p_es == NULL )
1557     {
1558         QuickTimeGenericRTPSource *qtRTPSource =
1559             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1560         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1561         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1562
1563         if( tk->fmt.i_cat == VIDEO_ES ) {
1564             if( qtState.sdAtomSize < 16 + 32 )
1565             {
1566                 /* invalid */
1567                 p_sys->event = 0xff;
1568                 tk->waiting = 0;
1569                 return;
1570             }
1571             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1572             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1573             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1574
1575             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1576             {
1577                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1578                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1579                                   + qtRTPSource->qtState.sdAtomSize;
1580                 while (pos+8 < endpos) {
1581                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1582                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1583                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1584                         atomLength > 8 &&
1585                         atomLength <= INT_MAX )
1586                     {
1587                         tk->fmt.i_extra = atomLength-8;
1588                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1589                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1590                         break;
1591                     }
1592                     pos += atomLength;
1593                 }
1594             }
1595             else
1596             {
1597                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1598                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1599                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1600             }
1601         }
1602         else {
1603             if( qtState.sdAtomSize < 4 )
1604             {
1605                 /* invalid */
1606                 p_sys->event = 0xff;
1607                 tk->waiting = 0;
1608                 return;
1609             }
1610             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1611         }
1612         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1613     }
1614
1615 #if 0
1616     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1617              i_size,
1618              pts.tv_sec * 1000000LL + pts.tv_usec );
1619 #endif
1620
1621     /* grow buffer if it looks like buffer is too small, but don't eat
1622      * up all the memory on strange streams */
1623     if( i_truncated_bytes > 0 )
1624     {
1625         if( tk->i_buffer < 2000000 )
1626         {
1627             void *p_tmp;
1628             msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1629             msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1630             p_tmp = realloc( tk->p_buffer, tk->i_buffer * 2 );
1631             if( p_tmp == NULL )
1632             {
1633                 msg_Warn( p_demux, "realloc failed" );
1634             }
1635             else
1636             {
1637                 tk->p_buffer = (uint8_t*)p_tmp;
1638                 tk->i_buffer *= 2;
1639             }
1640         }
1641
1642         if( tk->b_discard_trunc )
1643         {
1644             p_sys->event = 0xff;
1645             tk->waiting = 0;
1646             return;
1647         }
1648     }
1649
1650     assert( i_size <= tk->i_buffer );
1651
1652     if( tk->fmt.i_codec == VLC_CODEC_AMR_NB ||
1653         tk->fmt.i_codec == VLC_CODEC_AMR_WB )
1654     {
1655         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1656
1657         p_block = block_New( p_demux, i_size + 1 );
1658         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1659         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1660     }
1661     else if( tk->fmt.i_codec == VLC_CODEC_H261 )
1662     {
1663         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1664         uint32_t header = h261Source->lastSpecialHeader();
1665         p_block = block_New( p_demux, i_size + 4 );
1666         memcpy( p_block->p_buffer, &header, 4 );
1667         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1668
1669         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1670             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1671     }
1672     else if( tk->fmt.i_codec == VLC_CODEC_H264 )
1673     {
1674         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1675             msg_Warn( p_demux, "unsupported NAL type for H264" );
1676
1677         /* Normal NAL type */
1678         p_block = block_New( p_demux, i_size + 4 );
1679         p_block->p_buffer[0] = 0x00;
1680         p_block->p_buffer[1] = 0x00;
1681         p_block->p_buffer[2] = 0x00;
1682         p_block->p_buffer[3] = 0x01;
1683         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1684     }
1685     else if( tk->b_asf )
1686     {
1687         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1688         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1689
1690         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1691     }
1692     else
1693     {
1694         p_block = block_New( p_demux, i_size );
1695         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1696     }
1697
1698     if( p_sys->i_pcr < i_pts )
1699     {
1700         p_sys->i_pcr = i_pts;
1701     }
1702
1703     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1704     {
1705         p_block->i_pts = i_pts;
1706     }
1707
1708     /* Update our global npt value */
1709     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1710         p_sys->i_npt = tk->i_npt;
1711
1712     if( !tk->b_muxed )
1713     {
1714         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1715         p_block->i_dts = ( tk->fmt.i_codec == VLC_CODEC_MPGV ) ? 0 : i_pts;
1716     }
1717
1718     if( tk->b_muxed )
1719     {
1720         stream_DemuxSend( tk->p_out_muxed, p_block );
1721     }
1722     else if( tk->b_asf )
1723     {
1724         stream_DemuxSend( p_sys->p_out_asf, p_block );
1725     }
1726     else
1727     {
1728         es_out_Send( p_demux->out, tk->p_es, p_block );
1729     }
1730
1731     /* warn that's ok */
1732     p_sys->event = 0xff;
1733
1734     /* we have read data */
1735     tk->waiting = 0;
1736     p_demux->p_sys->b_no_data = false;
1737     p_demux->p_sys->i_no_data_ti = 0;
1738
1739     if( i_pts > 0 && !tk->b_muxed )
1740     {
1741         tk->i_pts = i_pts;
1742     }
1743 }
1744
1745 /*****************************************************************************
1746  *
1747  *****************************************************************************/
1748 static void StreamClose( void *p_private )
1749 {
1750     live_track_t   *tk = (live_track_t*)p_private;
1751     demux_t        *p_demux = tk->p_demux;
1752     demux_sys_t    *p_sys = p_demux->p_sys;
1753
1754     msg_Dbg( p_demux, "StreamClose" );
1755
1756     p_sys->event = 0xff;
1757     p_demux->b_error = true;
1758 }
1759
1760
1761 /*****************************************************************************
1762  *
1763  *****************************************************************************/
1764 static void TaskInterrupt( void *p_private )
1765 {
1766     demux_t *p_demux = (demux_t*)p_private;
1767
1768     p_demux->p_sys->i_no_data_ti++;
1769
1770     /* Avoid lock */
1771     p_demux->p_sys->event = 0xff;
1772 }
1773
1774 /*****************************************************************************
1775  *
1776  *****************************************************************************/
1777 static void* TimeoutPrevention( void *p_data )
1778 {
1779     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1780
1781     for( ;; )
1782     {
1783         /* Voodoo (= no) thread safety here! *Ahem* */
1784         if( p_timeout->b_handle_keep_alive )
1785         {
1786             char *psz_bye = NULL;
1787             int canc = vlc_savecancel ();
1788
1789             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1790             vlc_restorecancel (canc);
1791         }
1792         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1793
1794         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1795     }
1796     assert(0); /* dead code */
1797 }
1798
1799 /*****************************************************************************
1800  *
1801  *****************************************************************************/
1802 static int ParseASF( demux_t *p_demux )
1803 {
1804     demux_sys_t    *p_sys = p_demux->p_sys;
1805
1806     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1807     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1808     char *psz_end;
1809     block_t *p_header;
1810
1811     /* Parse the asf header */
1812     if( psz_asf == NULL )
1813         return VLC_EGENERIC;
1814
1815     psz_asf += strlen( psz_marker );
1816     psz_asf = strdup( psz_asf );    /* Duplicate it */
1817     psz_end = strchr( psz_asf, '\n' );
1818
1819     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1820         *psz_end-- = '\0';
1821
1822     if( psz_asf >= psz_end )
1823     {
1824         free( psz_asf );
1825         return VLC_EGENERIC;
1826     }
1827
1828     /* Always smaller */
1829     p_header = block_New( p_demux, psz_end - psz_asf );
1830     p_header->i_buffer = vlc_b64_decode_binary_to_buffer( p_header->p_buffer,
1831                                                p_header->i_buffer, psz_asf );
1832     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1833     if( p_header->i_buffer <= 0 )
1834     {
1835         free( psz_asf );
1836         return VLC_EGENERIC;
1837     }
1838
1839     /* Parse it to get packet size */
1840     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1841
1842     /* Send it to demuxer */
1843     stream_DemuxSend( p_sys->p_out_asf, p_header );
1844
1845     free( psz_asf );
1846     return VLC_SUCCESS;
1847 }
1848
1849
1850 static unsigned char* parseH264ConfigStr( char const* configStr,
1851                                           unsigned int& configSize )
1852 {
1853     char *dup, *psz;
1854     size_t i_records = 1;
1855
1856     configSize = 0;
1857
1858     if( configStr == NULL || *configStr == '\0' )
1859         return NULL;
1860
1861     psz = dup = strdup( configStr );
1862
1863     /* Count the number of commas */
1864     for( psz = dup; *psz != '\0'; ++psz )
1865     {
1866         if( *psz == ',')
1867         {
1868             ++i_records;
1869             *psz = '\0';
1870         }
1871     }
1872
1873     size_t configMax = 5*strlen(dup);
1874     unsigned char *cfg = new unsigned char[configMax];
1875     psz = dup;
1876     for( size_t i = 0; i < i_records; ++i )
1877     {
1878         cfg[configSize++] = 0x00;
1879         cfg[configSize++] = 0x00;
1880         cfg[configSize++] = 0x00;
1881         cfg[configSize++] = 0x01;
1882
1883         configSize += vlc_b64_decode_binary_to_buffer( cfg+configSize,
1884                                           configMax-configSize, psz );
1885         psz += strlen(psz)+1;
1886     }
1887
1888     free( dup );
1889     return cfg;
1890 }