2ae9ab1054f923b50ec65bdf5d34ef4222e00c8f
[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
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 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
44 #include <vlc_demux.h>
45 #include <vlc_interface.h>
46 #include <vlc_network.h>
47 #include <vlc_url.h>
48
49 #include <iostream>
50 #include <limits.h>
51
52
53 #if defined( WIN32 )
54 #   include <winsock2.h>
55 #endif
56
57 #include "UsageEnvironment.hh"
58 #include "BasicUsageEnvironment.hh"
59 #include "GroupsockHelper.hh"
60 #include "liveMedia.hh"
61
62 extern "C" {
63 #include "../access/mms/asf.h"  /* Who said ugly ? */
64 }
65
66 using namespace std;
67
68 /*****************************************************************************
69  * Module descriptor
70  *****************************************************************************/
71 static int  Open ( vlc_object_t * );
72 static void Close( vlc_object_t * );
73
74 #define CACHING_TEXT N_("Caching value (ms)")
75 #define CACHING_LONGTEXT N_( \
76     "Allows you to modify the default caching value for RTSP streams. This " \
77     "value should be set in millisecond units." )
78
79 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
80 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
81     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
82     "for communication. In this mode you cannot connect to normal RTSP servers." )
83
84 #define USER_TEXT N_("RTSP user name")
85 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
86     "be used for authenticating the connection.")
87 #define PASS_TEXT N_("RTSP password")
88 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
89     "used for the connection.")
90
91 vlc_module_begin();
92     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) );
93     set_capability( "demux", 50 );
94     set_shortname( "RTP/RTSP");
95     set_callbacks( Open, Close );
96     add_shortcut( "live" );
97     add_shortcut( "livedotcom" );
98     set_category( CAT_INPUT );
99     set_subcategory( SUBCAT_INPUT_DEMUX );
100
101     add_submodule();
102         set_description( N_("RTSP/RTP access and demux") );
103         add_shortcut( "rtsp" );
104         add_shortcut( "sdp" );
105         set_capability( "access_demux", 0 );
106         set_callbacks( Open, Close );
107         add_bool( "rtsp-tcp", 0, NULL,
108                   N_("Use RTP over RTSP (TCP)"),
109                   N_("Use RTP over RTSP (TCP)"), true );
110         add_integer( "rtp-client-port", -1, NULL,
111                   N_("Client port"),
112                   N_("Port to use for the RTP source of the session"), true );
113         add_bool( "rtsp-mcast", false, NULL,
114                   N_("Force multicast RTP via RTSP"),
115                   N_("Force multicast RTP via RTSP"), true );
116         add_bool( "rtsp-http", 0, NULL,
117                   N_("Tunnel RTSP and RTP over HTTP"),
118                   N_("Tunnel RTSP and RTP over HTTP"), true );
119         add_integer( "rtsp-http-port", 80, NULL,
120                   N_("HTTP tunnel port"),
121                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
122                   true );
123         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
124                     CACHING_TEXT, CACHING_LONGTEXT, true );
125         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
126                     KASENNA_LONGTEXT, true );
127         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
128                     USER_LONGTEXT, true );
129         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
130                     PASS_LONGTEXT, true );
131 vlc_module_end();
132
133
134 /*****************************************************************************
135  * Local prototypes
136  *****************************************************************************/
137
138 typedef struct
139 {
140     demux_t         *p_demux;
141     MediaSubsession *sub;
142
143     es_format_t     fmt;
144     es_out_id_t     *p_es;
145
146     bool            b_muxed;
147     bool            b_quicktime;
148     bool            b_asf;
149     stream_t        *p_out_muxed;    /* for muxed stream */
150
151     uint8_t         *p_buffer;
152     unsigned int    i_buffer;
153
154     bool            b_rtcp_sync;
155     char            waiting;
156     int64_t         i_pts;
157     int64_t         i_npt;
158
159 } live_track_t;
160
161 struct timeout_thread_t
162 {
163     VLC_COMMON_MEMBERS
164
165     int64_t      i_remain;
166     bool         b_handle_keep_alive;
167     demux_sys_t  *p_sys;
168 };
169
170 struct demux_sys_t
171 {
172     char            *p_sdp;    /* XXX mallocated */
173     char            *psz_path; /* URL-encoded path */
174     vlc_url_t       url;
175
176     MediaSession     *ms;
177     TaskScheduler    *scheduler;
178     UsageEnvironment *env ;
179     RTSPClient       *rtsp;
180
181     /* */
182     int              i_track;
183     live_track_t     **track;   /* XXX mallocated */
184
185     /* Weird formats */
186     asf_header_t     asfh;
187     stream_t         *p_out_asf;
188     bool             b_real;
189
190     /* */
191     int64_t          i_pcr; /* The clock */
192     int64_t          i_npt;
193     int64_t          i_npt_length;
194     int64_t          i_npt_start;
195
196     /* timeout thread information */
197     int              i_timeout;     /* session timeout value in seconds */
198     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
199     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
200
201     /* */
202     bool             b_force_mcast;
203     bool             b_multicast;   /* if one of the tracks is multicasted */
204     bool             b_no_data;     /* if we never received any data */
205     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
206
207     char             event;
208 };
209
210 static int Demux  ( demux_t * );
211 static int Control( demux_t *, int, va_list );
212
213 static int Connect      ( demux_t * );
214 static int SessionsSetup( demux_t * );
215 static int Play         ( demux_t *);
216 static int ParseASF     ( demux_t * );
217 static int RollOverTcp  ( demux_t * );
218
219 static void StreamRead  ( void *, unsigned int, unsigned int,
220                           struct timeval, unsigned int );
221 static void StreamClose ( void * );
222 static void TaskInterrupt( void * );
223
224 static void* TimeoutPrevention( vlc_object_t * );
225
226 static unsigned char* parseH264ConfigStr( char const* configStr,
227                                           unsigned int& configSize );
228
229 /*****************************************************************************
230  * DemuxOpen:
231  *****************************************************************************/
232 static int  Open ( vlc_object_t *p_this )
233 {
234     demux_t     *p_demux = (demux_t*)p_this;
235     demux_sys_t *p_sys = NULL;
236
237     MediaSubsessionIterator *iter   = NULL;
238     MediaSubsession         *sub    = NULL;
239     int i, i_return;
240     int i_error = VLC_EGENERIC;
241
242     if( p_demux->s )
243     {
244         /* See if it looks like a SDP
245            v, o, s fields are mandatory and in this order */
246         const uint8_t *p_peek;
247         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
248
249         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
250             memcmp( p_peek, "v=0\n", 4 ) &&
251             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
252         {
253             return VLC_EGENERIC;
254         }
255     }
256     else
257     {
258         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
259     }
260
261     p_demux->pf_demux  = Demux;
262     p_demux->pf_control= Control;
263     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
264     if( !p_sys ) return VLC_ENOMEM;
265
266     p_sys->p_sdp = NULL;
267     p_sys->scheduler = NULL;
268     p_sys->env = NULL;
269     p_sys->ms = NULL;
270     p_sys->rtsp = NULL;
271     p_sys->i_track = 0;
272     p_sys->track   = NULL;
273     p_sys->i_pcr = 0;
274     p_sys->i_npt = 0;
275     p_sys->i_npt_start = 0;
276     p_sys->i_npt_length = 0;
277     p_sys->p_out_asf = NULL;
278     p_sys->b_no_data = true;
279     p_sys->i_no_data_ti = 0;
280     p_sys->p_timeout = NULL;
281     p_sys->i_timeout = 0;
282     p_sys->b_timeout_call = false;
283     p_sys->b_multicast = false;
284     p_sys->b_real = false;
285     p_sys->psz_path = strdup( p_demux->psz_path );
286     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
287
288     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
289     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
290
291     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
292     {
293         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
294         goto error;
295     }
296     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
297     {
298         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
299         goto error;
300     }
301
302     if( strcasecmp( p_demux->psz_access, "sdp" ) )
303     {
304         char *p = p_sys->psz_path;
305         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
306     }
307
308     if( p_demux->s != NULL )
309     {
310         /* Gather the complete sdp file */
311         int     i_sdp       = 0;
312         int     i_sdp_max   = 1000;
313         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
314
315         if( !p_sdp )
316         {
317             i_error = VLC_ENOMEM;
318             goto error;
319         }
320
321         for( ;; )
322         {
323             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
324                                       i_sdp_max - i_sdp - 1 );
325
326             if( !vlc_object_alive (p_demux) || p_demux->b_error )
327             {
328                 free( p_sdp );
329                 goto error;
330             }
331
332             if( i_read < 0 )
333             {
334                 msg_Err( p_demux, "failed to read SDP" );
335                 free( p_sdp );
336                 goto error;
337             }
338
339             i_sdp += i_read;
340
341             if( i_read < i_sdp_max - i_sdp - 1 )
342             {
343                 p_sdp[i_sdp] = '\0';
344                 break;
345             }
346
347             i_sdp_max += 1000;
348             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
349         }
350         p_sys->p_sdp = (char*)p_sdp;
351     }
352     else if( ( p_demux->s == NULL ) &&
353              !strcasecmp( p_demux->psz_access, "sdp" ) )
354     {
355         /* sdp:// link from SAP */
356         p_sys->p_sdp = strdup( p_sys->psz_path );
357     }
358     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
359     {
360         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
361         goto error;
362     }
363
364     if( p_sys->p_sdp == NULL )
365     {
366         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
367         i_error = VLC_ENOMEM;
368         goto error;
369     }
370
371     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
372     {
373         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
374         goto error;
375     }
376
377     if( p_sys->b_real ) goto error;
378
379     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
380         goto error;
381
382     if( p_sys->p_out_asf && ParseASF( p_demux ) )
383     {
384         msg_Err( p_demux, "cannot find a usable asf header" );
385         /* TODO Clean tracks */
386         goto error;
387     }
388
389     if( p_sys->i_track <= 0 )
390         goto error;
391
392     return VLC_SUCCESS;
393
394 error:
395     for( i = 0; i < p_sys->i_track; i++ )
396     {
397         live_track_t *tk = p_sys->track[i];
398
399         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
400         es_format_Clean( &tk->fmt );
401         free( tk->p_buffer );
402         free( tk );
403     }
404
405     if( p_sys->i_track ) free( p_sys->track );
406     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
407     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
408     if( p_sys->ms ) Medium::close( p_sys->ms );
409     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
410     if( p_sys->env ) p_sys->env->reclaim();
411     if( p_sys->p_timeout )
412     {
413         vlc_object_kill( p_sys->p_timeout );
414         vlc_thread_join( p_sys->p_timeout );
415         vlc_object_detach( p_sys->p_timeout );
416         vlc_object_release( p_sys->p_timeout );
417     }
418     delete p_sys->scheduler;
419     free( p_sys->p_sdp );
420     free( p_sys->psz_path );
421
422     vlc_UrlClean( &p_sys->url );
423
424     free( p_sys );
425     return i_error;
426 }
427
428 /*****************************************************************************
429  * DemuxClose:
430  *****************************************************************************/
431 static void Close( vlc_object_t *p_this )
432 {
433     demux_t *p_demux = (demux_t*)p_this;
434     demux_sys_t *p_sys = p_demux->p_sys;
435     int i;
436
437     for( i = 0; i < p_sys->i_track; i++ )
438     {
439         live_track_t *tk = p_sys->track[i];
440
441         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
442         es_format_Clean( &tk->fmt );
443         free( tk->p_buffer );
444         free( tk );
445     }
446
447     if( p_sys->i_track ) free( p_sys->track );
448     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
449     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
450     if( p_sys->ms ) Medium::close( p_sys->ms );
451     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
452     if( p_sys->env ) p_sys->env->reclaim();
453     if( p_sys->p_timeout )
454     {
455         vlc_object_kill( p_sys->p_timeout );
456         vlc_thread_join( p_sys->p_timeout );
457         vlc_object_detach( p_sys->p_timeout );
458         vlc_object_release( p_sys->p_timeout );
459     }
460     delete p_sys->scheduler;
461     free( p_sys->p_sdp );
462     free( p_sys->psz_path );
463
464     vlc_UrlClean( &p_sys->url );
465
466     free( p_sys );
467 }
468
469 /*****************************************************************************
470  * Connect: connects to the RTSP server to setup the session DESCRIBE
471  *****************************************************************************/
472 static int Connect( demux_t *p_demux )
473 {
474     demux_sys_t *p_sys = p_demux->p_sys;
475     Authenticator authenticator;
476     bool b_firstpass  = true;
477     char *psz_user    = NULL;
478     char *psz_pwd     = NULL;
479     char *psz_url     = NULL;
480     char *psz_options = NULL;
481     char *p_sdp       = NULL;
482     int  i_http_port  = 0;
483     int  i_ret        = VLC_SUCCESS;
484     int i_lefttries;
485
486     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
487     if( p_sys->url.psz_username || p_sys->url.psz_password )
488     {
489         int err;
490         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
491                         p_sys->url.i_port, p_sys->url.psz_path );
492         if( err == -1 ) return VLC_ENOMEM;
493
494         psz_user = strdup( p_sys->url.psz_username );
495         psz_pwd  = strdup( p_sys->url.psz_password );
496     }
497     else
498     {
499         int err;
500         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
501         if( err == -1 ) return VLC_ENOMEM;
502
503         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
504         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
505     }
506
507     i_lefttries = 3;
508 createnew:
509     i_lefttries--;
510     if( !vlc_object_alive (p_demux) || p_demux->b_error )
511     {
512         free( psz_user );
513         free( psz_pwd );
514         free( psz_url );
515         return VLC_EGENERIC;
516     }
517
518     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
519         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
520
521     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
522           var_CreateGetInteger( p_demux, "verbose" ) > 1,
523           "VLC media player", i_http_port ) ) == NULL )
524     {
525         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
526                  p_sys->env->getResultMsg() );
527         free( psz_user );
528         free( psz_pwd );
529         free( psz_url );
530         return VLC_EGENERIC;
531     }
532
533     /* Kasenna enables KeepAlive by analysing the User-Agent string. 
534      * Appending _KA to the string should be enough to enable this feature, 
535      * however, there is a bug where the _KA doesn't get parsed from the 
536      * default User-Agent as created by VLC/Live555 code. This is probably due 
537      * to spaces in the string or the string being too long. Here we override
538      * the default string with a more compact version.
539      */
540     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
541     {
542         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
543     }
544
545 describe:
546     authenticator.setUsernameAndPassword( (const char*)psz_user,
547                                           (const char*)psz_pwd );
548
549     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
550                                                &authenticator );
551     delete [] psz_options;
552
553     p_sdp = p_sys->rtsp->describeURL( psz_url, &authenticator,
554                          var_GetBool( p_demux, "rtsp-kasenna" ) );
555     if( p_sdp == NULL )
556     {
557         /* failure occurred */
558         int i_code = 0;
559         const char *psz_error = p_sys->env->getResultMsg();
560
561         if( var_GetBool( p_demux, "rtsp-http" ) )
562             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
563                     &i_code );
564         else
565         {
566             const char *psz_tmp = strstr( psz_error, "RTSP" );
567             if( psz_tmp )
568                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
569             else
570                 i_code = 0;
571         }
572         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
573
574         if( b_firstpass )
575         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
576              * first time. This is a workaround to avoid asking for a
577              * user/passwd the first time the code passess here. */
578             i_code = 0;
579             b_firstpass = false;
580         }
581
582         if( i_code == 401 )
583         {
584             int i_result;
585             msg_Dbg( p_demux, "authentication failed" );
586
587             free( psz_user );
588             free( psz_pwd );
589             psz_user = psz_pwd = NULL;
590
591             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
592                            _("Please enter a valid login name and a password."),
593                                                    &psz_user, &psz_pwd );
594             if( i_result == DIALOG_OK_YES )
595             {
596                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
597                          psz_user, psz_pwd );
598                 goto describe;
599             }
600         }
601         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
602         {
603             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
604             vlc_value_t val;
605             val.b_bool = true;
606             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
607             var_Set( p_demux, "rtsp-http", val );
608             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
609             p_sys->rtsp = NULL;
610             goto createnew;
611         }
612         else
613         {
614             msg_Dbg( p_demux, "connection timeout, retrying" );
615             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
616             p_sys->rtsp = NULL;
617             if( i_lefttries > 0 )
618                 goto createnew;
619         }
620         i_ret = VLC_EGENERIC;
621     }
622
623     /* malloc-ated copy */
624     free( psz_url );
625     free( psz_user );
626     free( psz_pwd );
627
628     free( p_sys->p_sdp );
629     p_sys->p_sdp = NULL;
630     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
631     delete[] p_sdp;
632
633     return i_ret;
634 }
635
636 /*****************************************************************************
637  * SessionsSetup: prepares the subsessions and does the SETUP
638  *****************************************************************************/
639 static int SessionsSetup( demux_t *p_demux )
640 {
641     demux_sys_t             *p_sys  = p_demux->p_sys;
642     MediaSubsessionIterator *iter   = NULL;
643     MediaSubsession         *sub    = NULL;
644
645     bool           b_rtsp_tcp = false;
646     int            i_client_port;
647     int            i_return = VLC_SUCCESS;
648     unsigned int   i_buffer = 0;
649     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
650
651     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
652                     var_GetBool( p_demux, "rtsp-http" );
653     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
654
655     /* Create the session from the SDP */
656     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
657     {
658         msg_Err( p_demux, "Could not create the RTSP Session: %s",
659             p_sys->env->getResultMsg() );
660         return VLC_EGENERIC;
661     }
662
663     /* Initialise each media subsession */
664     iter = new MediaSubsessionIterator( *p_sys->ms );
665     while( ( sub = iter->next() ) != NULL )
666     {
667         Boolean bInit;
668         live_track_t *tk;
669
670         if( !vlc_object_alive (p_demux) || p_demux->b_error )
671         {
672             delete iter;
673             return VLC_EGENERIC;
674         }
675
676         /* Value taken from mplayer */
677         if( !strcmp( sub->mediumName(), "audio" ) )
678             i_buffer = 100000;
679         else if( !strcmp( sub->mediumName(), "video" ) )
680             i_buffer = 2000000;
681         else continue;
682
683         if( i_client_port != -1 )
684         {
685             sub->setClientPortNum( i_client_port );
686             i_client_port += 2;
687         }
688
689         if( strcasestr( sub->codecName(), "REAL" ) )
690         {
691             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
692             p_sys->b_real = true; /* This is a problem, we'll handle it later */
693             continue;
694         }
695
696         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
697             bInit = sub->initiate( 4 ); /* Constant ? */
698         else
699             bInit = sub->initiate();
700
701         if( !bInit )
702         {
703             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
704                       sub->mediumName(), sub->codecName(),
705                       p_sys->env->getResultMsg() );
706         }
707         else
708         {
709             if( sub->rtpSource() != NULL )
710             {
711                 int fd = sub->rtpSource()->RTPgs()->socketNum();
712
713                 /* Increase the buffer size */
714                 if( i_buffer > 0 )
715                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
716
717                 /* Increase the RTP reorder timebuffer just a bit */
718                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
719             }
720             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
721                      sub->codecName() );
722
723             /* Issue the SETUP */
724             if( p_sys->rtsp )
725             {
726                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
727                                            b_rtsp_tcp ? True : False,
728                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
729                 {
730                     /* if we get an unsupported transport error, toggle TCP use and try again */
731                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
732                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
733                                            !b_rtsp_tcp ? False : True,
734                                            False ) )
735                     {
736                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
737                                  sub->codecName(), p_sys->env->getResultMsg() );
738                         continue;
739                     }
740                 }
741             }
742
743             /* Check if we will receive data from this subsession for this track */
744             if( sub->readSource() == NULL ) continue;
745             if( !p_sys->b_multicast )
746             {
747                 /* Check, because we need diff. rollover behaviour for multicast */
748                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
749             }
750
751             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
752             if( !tk )
753             {
754                 delete iter;
755                 return VLC_ENOMEM;
756             }
757             tk->p_demux     = p_demux;
758             tk->sub         = sub;
759             tk->p_es        = NULL;
760             tk->b_quicktime = false;
761             tk->b_asf       = false;
762             tk->b_muxed     = false;
763             tk->p_out_muxed = NULL;
764             tk->waiting     = 0;
765             tk->b_rtcp_sync = false;
766             tk->i_pts       = 0;
767             tk->i_npt       = 0;
768             tk->i_buffer    = 65536;
769             tk->p_buffer    = (uint8_t *)malloc( 65536 );
770             if( !tk->p_buffer )
771             {
772                 delete iter;
773                 return VLC_ENOMEM;
774             }
775
776             /* Value taken from mplayer */
777             if( !strcmp( sub->mediumName(), "audio" ) )
778             {
779                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
780                 tk->fmt.audio.i_channels = sub->numChannels();
781                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
782
783                 if( !strcmp( sub->codecName(), "MPA" ) ||
784                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
785                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
786                 {
787                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
788                     tk->fmt.audio.i_rate = 0;
789                 }
790                 else if( !strcmp( sub->codecName(), "AC3" ) )
791                 {
792                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
793                     tk->fmt.audio.i_rate = 0;
794                 }
795                 else if( !strcmp( sub->codecName(), "L16" ) )
796                 {
797                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
798                     tk->fmt.audio.i_bitspersample = 16;
799                 }
800                 else if( !strcmp( sub->codecName(), "L8" ) )
801                 {
802                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
803                     tk->fmt.audio.i_bitspersample = 8;
804                 }
805                 else if( !strcmp( sub->codecName(), "PCMU" ) )
806                 {
807                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
808                 }
809                 else if( !strcmp( sub->codecName(), "PCMA" ) )
810                 {
811                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
812                 }
813                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
814                 {
815                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
816                     tk->fmt.audio.i_rate = 8000;
817                     tk->fmt.audio.i_channels = 1;
818                     if( !strcmp( sub->codecName()+5, "40" ) )
819                         tk->fmt.i_bitrate = 40000;
820                     else if( !strcmp( sub->codecName()+5, "32" ) )
821                         tk->fmt.i_bitrate = 32000;
822                     else if( !strcmp( sub->codecName()+5, "24" ) )
823                         tk->fmt.i_bitrate = 24000;
824                     else if( !strcmp( sub->codecName()+5, "16" ) )
825                         tk->fmt.i_bitrate = 16000;
826                 }
827                 else if( !strcmp( sub->codecName(), "AMR" ) )
828                 {
829                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
830                 }
831                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
832                 {
833                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
834                 }
835                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
836                 {
837                     unsigned int i_extra;
838                     uint8_t      *p_extra;
839
840                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
841
842                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
843                                                              i_extra ) ) )
844                     {
845                         tk->fmt.i_extra = i_extra;
846                         tk->fmt.p_extra = malloc( i_extra );
847                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
848                         delete[] p_extra;
849                     }
850                     /* Because the "faad" decoder does not handle the LATM data length field
851                        at the start of each returned LATM frame, tell the RTP source to omit it. */
852                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
853                 }
854                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
855                 {
856                     unsigned int i_extra;
857                     uint8_t      *p_extra;
858
859                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
860
861                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
862                                                            i_extra ) ) )
863                     {
864                         tk->fmt.i_extra = i_extra;
865                         tk->fmt.p_extra = malloc( i_extra );
866                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
867                         delete[] p_extra;
868                     }
869                 }
870                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
871                 {
872                     tk->b_asf = true;
873                     if( p_sys->p_out_asf == NULL )
874                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
875                                                             p_demux->out );
876                 }
877                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
878                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
879                 {
880                     tk->b_quicktime = true;
881                 }
882                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
883                 {
884                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
885                     if ( sub->rtpTimestampFrequency() )
886                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
887                     else
888                     {
889                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
890                         tk->fmt.audio.i_rate = 8000;
891                     }
892                 }
893             }
894             else if( !strcmp( sub->mediumName(), "video" ) )
895             {
896                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
897                 if( !strcmp( sub->codecName(), "MPV" ) )
898                 {
899                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
900                 }
901                 else if( !strcmp( sub->codecName(), "H263" ) ||
902                          !strcmp( sub->codecName(), "H263-1998" ) ||
903                          !strcmp( sub->codecName(), "H263-2000" ) )
904                 {
905                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
906                 }
907                 else if( !strcmp( sub->codecName(), "H261" ) )
908                 {
909                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
910                 }
911                 else if( !strcmp( sub->codecName(), "H264" ) )
912                 {
913                     unsigned int i_extra = 0;
914                     uint8_t      *p_extra = NULL;
915
916                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
917                     tk->fmt.b_packetized = false;
918
919                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
920                                                     i_extra ) ) )
921                     {
922                         tk->fmt.i_extra = i_extra;
923                         tk->fmt.p_extra = malloc( i_extra );
924                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
925
926                         delete[] p_extra;
927                     }
928                 }
929                 else if( !strcmp( sub->codecName(), "JPEG" ) )
930                 {
931                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
932                 }
933                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
934                 {
935                     unsigned int i_extra;
936                     uint8_t      *p_extra;
937
938                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
939
940                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
941                                                            i_extra ) ) )
942                     {
943                         tk->fmt.i_extra = i_extra;
944                         tk->fmt.p_extra = malloc( i_extra );
945                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
946                         delete[] p_extra;
947                     }
948                 }
949                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
950                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
951                          !strcmp( sub->codecName(), "X-QDM" ) ||
952                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
953                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
954                 {
955                     tk->b_quicktime = true;
956                 }
957                 else if( !strcmp( sub->codecName(), "MP2T" ) )
958                 {
959                     tk->b_muxed = true;
960                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
961                 }
962                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
963                          !strcmp( sub->codecName(), "MP1S" ) )
964                 {
965                     tk->b_muxed = true;
966                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
967                                                        p_demux->out );
968                 }
969                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
970                 {
971                     tk->b_asf = true;
972                     if( p_sys->p_out_asf == NULL )
973                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
974                                                             p_demux->out );;
975                 }
976             }
977
978             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
979             {
980                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
981             }
982
983             if( sub->rtcpInstance() != NULL )
984             {
985                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
986             }
987
988             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
989             {
990                 /* Append */
991                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
992                 p_sys->track[p_sys->i_track++] = tk;
993             }
994             else
995             {
996                 /* BUG ??? */
997                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
998                 es_format_Clean( &tk->fmt );
999                 free( tk );
1000             }
1001         }
1002     }
1003     delete iter;
1004     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1005
1006     /* Retrieve the starttime if possible */
1007     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1008     if( p_sys->i_npt_start < 0 )
1009         p_sys->i_npt_start = -1;
1010
1011     /* Retrieve the duration if possible */
1012     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1013     if( p_sys->i_npt_length < 0 )
1014         p_sys->i_npt_length = -1;
1015
1016     msg_Dbg( p_demux, "setup start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1017     return i_return;
1018 }
1019
1020 /*****************************************************************************
1021  * Play: starts the actual playback of the stream
1022  *****************************************************************************/
1023 static int Play( demux_t *p_demux )
1024 {
1025     demux_sys_t *p_sys = p_demux->p_sys;
1026     int i;
1027
1028     if( p_sys->rtsp )
1029     {
1030         /* The PLAY */
1031         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1032         {
1033             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1034             return VLC_EGENERIC;
1035         }
1036
1037         /* Retrieve the timeout value and set up a timeout prevention thread */
1038         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1039         if( p_sys->i_timeout <= 0 )
1040             p_sys->i_timeout = 60; /* default value from RFC2326 */
1041
1042         /* start timeout-thread only on x-asf streams (wms), it has rtcp support but doesn't 
1043          * seem to use it for liveness/keep-alive, get_parameter seems to work for it. get_parameter
1044          * doesn't work with dss 5.5.4 & 5.5.5, they seems to work with rtcp */
1045         if( !p_sys->p_timeout && p_sys->p_out_asf )
1046         {
1047             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1048             p_sys->p_timeout = (timeout_thread_t *)vlc_object_create( p_demux, sizeof(timeout_thread_t) );
1049             p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1050             if( vlc_thread_create( p_sys->p_timeout, "liveMedia-timeout", TimeoutPrevention,
1051                                    VLC_THREAD_PRIORITY_LOW, true ) )
1052             {
1053                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1054                 vlc_object_release( p_sys->p_timeout );
1055             }
1056             msg_Dbg( p_demux, "spawned timeout thread" );
1057             vlc_object_attach( p_sys->p_timeout, p_demux );
1058         }
1059     }
1060     p_sys->i_pcr = 0;
1061
1062     /* Retrieve the starttime if possible */
1063     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1064     if( p_sys->i_npt_start < 0 )
1065         p_sys->i_npt_start = -1;
1066
1067     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1068     if( p_sys->i_npt_length < 0 )
1069         p_sys->i_npt_length = -1;
1070
1071     msg_Dbg( p_demux, "play start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1072     return VLC_SUCCESS;
1073 }
1074
1075
1076 /*****************************************************************************
1077  * Demux:
1078  *****************************************************************************/
1079 static int Demux( demux_t *p_demux )
1080 {
1081     demux_sys_t    *p_sys = p_demux->p_sys;
1082     TaskToken      task;
1083
1084     bool            b_send_pcr = true;
1085     int64_t         i_pcr = 0;
1086     int             i;
1087
1088     /* Check if we need to send the server a Keep-A-Live signal */
1089     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1090     {
1091         char *psz_bye = NULL;
1092         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1093         p_sys->b_timeout_call = false;
1094     }
1095
1096     for( i = 0; i < p_sys->i_track; i++ )
1097     {
1098         live_track_t *tk = p_sys->track[i];
1099
1100         if( tk->b_asf || tk->b_muxed )
1101             b_send_pcr = false;
1102 #if 0
1103         if( i_pcr == 0 )
1104         {
1105             i_pcr = tk->i_pts;
1106         }
1107         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1108         {
1109             i_pcr = tk->i_pts ;
1110         }
1111 #endif
1112     }
1113     if( p_sys->i_pcr > 0 )
1114     {
1115         if( b_send_pcr )
1116             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1117     }
1118
1119     /* First warn we want to read data */
1120     p_sys->event = 0;
1121     for( i = 0; i < p_sys->i_track; i++ )
1122     {
1123         live_track_t *tk = p_sys->track[i];
1124
1125         if( tk->waiting == 0 )
1126         {
1127             tk->waiting = 1;
1128             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1129                                           StreamRead, tk, StreamClose, tk );
1130         }
1131     }
1132     /* Create a task that will be called if we wait more than 300ms */
1133     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1134
1135     /* Do the read */
1136     p_sys->scheduler->doEventLoop( &p_sys->event );
1137
1138     /* remove the task */
1139     p_sys->scheduler->unscheduleDelayedTask( task );
1140
1141     /* Check for gap in pts value */
1142     for( i = 0; i < p_sys->i_track; i++ )
1143     {
1144         live_track_t *tk = p_sys->track[i];
1145
1146         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1147             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1148         {
1149             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1150
1151             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1152             tk->b_rtcp_sync = true;
1153             /* reset PCR */
1154             tk->i_pts = 0;
1155             tk->i_npt = 0;
1156             p_sys->i_pcr = 0;
1157             p_sys->i_npt = 0;
1158             i_pcr = 0;
1159         }
1160     }
1161
1162     if( p_sys->b_multicast && p_sys->b_no_data &&
1163         ( p_sys->i_no_data_ti > 120 ) )
1164     {
1165         /* FIXME Make this configurable
1166         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1167         return 0;
1168         */
1169     }
1170     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1171              ( p_sys->i_no_data_ti > 34 ) )
1172     {
1173         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1174                                 var_GetBool( p_demux, "rtsp-http" );
1175
1176         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1177         {
1178             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1179             if( RollOverTcp( p_demux ) )
1180             {
1181                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1182                 return 0;
1183             }
1184             return 1;
1185         }
1186         msg_Err( p_demux, "no data received in 10s, aborting" );
1187         return 0;
1188     }
1189     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1190     {
1191         /* EOF ? */
1192         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1193         return 0;
1194     }
1195     return p_demux->b_error ? 0 : 1;
1196 }
1197
1198 /*****************************************************************************
1199  * Control:
1200  *****************************************************************************/
1201 static int Control( demux_t *p_demux, int i_query, va_list args )
1202 {
1203     demux_sys_t *p_sys = p_demux->p_sys;
1204     int64_t *pi64, i64;
1205     double  *pf, f;
1206     bool *pb, *pb2, b_bool;
1207     int *pi_int;
1208
1209     switch( i_query )
1210     {
1211         case DEMUX_GET_TIME:
1212             pi64 = (int64_t*)va_arg( args, int64_t * );
1213             if( p_sys->i_npt > 0 )
1214             {
1215                 *pi64 = p_sys->i_npt;
1216                 return VLC_SUCCESS;
1217             }
1218             return VLC_EGENERIC;
1219
1220         case DEMUX_GET_LENGTH:
1221             pi64 = (int64_t*)va_arg( args, int64_t * );
1222             if( p_sys->i_npt_length > 0 )
1223             {
1224                 *pi64 = p_sys->i_npt_length;
1225                 return VLC_SUCCESS;
1226             }
1227             return VLC_EGENERIC;
1228
1229         case DEMUX_GET_POSITION:
1230             pf = (double*)va_arg( args, double* );
1231             if( p_sys->i_npt_length > 0 && p_sys->i_npt > 0)
1232             {
1233                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1234                 return VLC_SUCCESS;
1235             }
1236             return VLC_EGENERIC;
1237
1238         case DEMUX_SET_POSITION:
1239         case DEMUX_SET_TIME:
1240             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1241             {
1242                 int i;
1243                 float time;
1244
1245                 if( i_query == DEMUX_SET_TIME && p_sys->i_npt )
1246                 {
1247                     i64 = (int64_t)va_arg( args, int64_t );
1248                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1249                 }
1250                 else if( i_query == DEMUX_SET_TIME )
1251                     return VLC_EGENERIC;
1252                 else
1253                 {
1254                     f = (double)va_arg( args, double );
1255                     time = f * (double)p_sys->i_npt_length / (double)1000000.0;   /* in second */
1256                 }
1257
1258                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1259                 {
1260                     msg_Err( p_demux, "PLAY failed %s",
1261                         p_sys->env->getResultMsg() );
1262                     return VLC_EGENERIC;
1263                 }
1264                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1265                 p_sys->i_pcr = 0;
1266
1267                 /* Retrieve RTP-Info values */
1268                 for( i = 0; i < p_sys->i_track; i++ )
1269                 {
1270                     p_sys->track[i]->b_rtcp_sync = false;
1271                     p_sys->track[i]->i_pts = 0;
1272                 }
1273
1274                 /* Retrieve the starttime if possible */
1275                 p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1276                 if( p_sys->i_npt_start < 0 )
1277                     p_sys->i_npt_start = -1;
1278                 else p_sys->i_npt = p_sys->i_npt_start;
1279
1280                 /* Retrieve the duration if possible */
1281                 p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1282                 if( p_sys->i_npt_length < 0 )
1283                     p_sys->i_npt_length = -1;
1284
1285                 msg_Dbg( p_demux, "seek start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1286                 return VLC_SUCCESS;
1287             }
1288             return VLC_EGENERIC;
1289
1290         /* Special for access_demux */
1291         case DEMUX_CAN_PAUSE:
1292         case DEMUX_CAN_SEEK:
1293             pb = (bool*)va_arg( args, bool * );
1294             if( p_sys->rtsp && p_sys->i_npt_length )
1295                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1296                 *pb = true;
1297             else
1298                 *pb = false;
1299             return VLC_SUCCESS;
1300
1301         case DEMUX_CAN_CONTROL_PACE:
1302             pb = (bool*)va_arg( args, bool * );
1303
1304 #if 1       /* Disable for now until we have a clock synchro algo
1305              * which works with something else than MPEG over UDP */
1306             *pb = false;
1307 #else
1308             *pb = true;
1309 #endif
1310             return VLC_SUCCESS;
1311
1312 #if 0
1313         case DEMUX_CAN_CONTROL_RATE:
1314             pb = (bool*)va_arg( args, bool * );
1315             pb2 = (bool*)va_arg( args, bool * );
1316
1317             *pb = p_sys->rtsp != NULL && p_sys->i_npt_length > 0 && !var_GetBool( p_demux, "rtsp-kasenna" );
1318             *pb2 = false;
1319             return VLC_SUCCESS;
1320
1321         case DEMUX_SET_RATE:
1322         {
1323             double f_scale;
1324
1325             if( !p_sys->rtsp || p_sys->i_npt_length <= 0 || var_GetBool( p_demux, "rtsp-kasenna" ) )
1326                 return VLC_EGENERIC;
1327
1328             /* TODO we might want to ensure that the new rate is different from
1329              * old rate after playMediaSession...
1330              * I have no idea how the server map the requested rate to the
1331              * ones it supports.
1332              * ex:
1333              *  current is x2 we request x1.5 if the server return x2 we will
1334              *  never succeed to return to x1.
1335              *  In this case we should retry with a lower rate until we have
1336              *  one (even x1).
1337              */
1338
1339             pi_int = (int*)va_arg( args, int * );
1340             f_scale = (double)INPUT_RATE_DEFAULT / (*p_int);
1341
1342             /* Passing -1 for the start and end time will mean liveMedia won't
1343             * create a Range: section for the RTSP message. The server should
1344             * pick up from the current position */
1345             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1346             {
1347                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1348                         p_sys->env->getResultMsg() );
1349                 return VLC_EGENERIC;
1350             }
1351             /* ReSync the stream */
1352             p_sys->i_npt_start = 0;
1353             p_sys->i_pcr = 0;
1354             p_sys->i_npt = 0;
1355             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1356
1357             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() + 0.5 );
1358             return VLC_SUCCESS;
1359         }
1360 #endif
1361
1362         case DEMUX_SET_PAUSE_STATE:
1363         {
1364             int i;
1365
1366             b_bool = (bool)va_arg( args, int );
1367             if( p_sys->rtsp == NULL )
1368                 return VLC_EGENERIC;
1369
1370             /* FIXME */
1371             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1372                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1373                        -1 ) ) )
1374             {
1375                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1376                     return VLC_EGENERIC;
1377             }
1378
1379             /* When we Pause, we'll need the TimeoutPrevention thread to
1380              * handle sending the "Keep Alive" message to the server. 
1381              * Unfortunately Live555 isn't thread safe and so can't 
1382              * do this normally while the main Demux thread is handling
1383              * a live stream. We end up with the Timeout thread blocking
1384              * waiting for a response from the server. So when we PAUSE
1385              * we set a flag that the TimeoutPrevention function will check
1386              * and if it's set, it will trigger the GET_PARAMETER message */
1387             if( b_bool && p_sys->p_timeout != NULL )
1388                 p_sys->p_timeout->b_handle_keep_alive = true;
1389             else if( !b_bool && p_sys->p_timeout != NULL ) 
1390                 p_sys->p_timeout->b_handle_keep_alive = false;
1391
1392             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1393             {
1394                 live_track_t *tk = p_sys->track[i];
1395                 tk->b_rtcp_sync = false;
1396                 tk->i_pts = 0;
1397                 p_sys->i_pcr = 0;
1398                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1399             }
1400
1401             /* Retrieve the starttime if possible */
1402             p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1403             if( p_sys->i_npt_start < 0 )
1404                 p_sys->i_npt_start = -1;
1405             else p_sys->i_npt = p_sys->i_npt_start;
1406
1407             /* Retrieve the duration if possible */
1408             p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1409             if( p_sys->i_npt_length < 0 )
1410                 p_sys->i_npt_length = -1;
1411
1412             msg_Dbg( p_demux, "pause start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1413             return VLC_SUCCESS;
1414         }
1415         case DEMUX_GET_TITLE_INFO:
1416         case DEMUX_SET_TITLE:
1417         case DEMUX_SET_SEEKPOINT:
1418             return VLC_EGENERIC;
1419
1420         case DEMUX_GET_PTS_DELAY:
1421             pi64 = (int64_t*)va_arg( args, int64_t * );
1422             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1423             return VLC_SUCCESS;
1424
1425         default:
1426             return VLC_EGENERIC;
1427     }
1428 }
1429
1430 /*****************************************************************************
1431  * RollOverTcp: reopen the rtsp into TCP mode
1432  * XXX: ugly, a lot of code are duplicated from Open()
1433  * This should REALLY be fixed
1434  *****************************************************************************/
1435 static int RollOverTcp( demux_t *p_demux )
1436 {
1437     demux_sys_t *p_sys = p_demux->p_sys;
1438     int i, i_return;
1439
1440     var_SetBool( p_demux, "rtsp-tcp", true );
1441
1442     /* We close the old RTSP session */
1443     for( i = 0; i < p_sys->i_track; i++ )
1444     {
1445         live_track_t *tk = p_sys->track[i];
1446
1447         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1448         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1449         es_format_Clean( &tk->fmt );
1450         free( tk->p_buffer );
1451         free( tk );
1452     }
1453     if( p_sys->i_track ) free( p_sys->track );
1454     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1455
1456     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1457     Medium::close( p_sys->ms );
1458     RTSPClient::close( p_sys->rtsp );
1459
1460     p_sys->ms = NULL;
1461     p_sys->rtsp = NULL;
1462     p_sys->track = NULL;
1463     p_sys->i_track = 0;
1464
1465     /* Reopen rtsp client */
1466     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1467     {
1468         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1469                  p_sys->psz_path );
1470         goto error;
1471     }
1472
1473     if( p_sys->p_sdp == NULL )
1474     {
1475         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1476         goto error;
1477     }
1478
1479     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1480     {
1481         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1482         goto error;
1483     }
1484
1485     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1486         goto error;
1487
1488     return VLC_SUCCESS;
1489
1490 error:
1491     return VLC_EGENERIC;
1492 }
1493
1494
1495 /*****************************************************************************
1496  *
1497  *****************************************************************************/
1498 static void StreamRead( void *p_private, unsigned int i_size,
1499                         unsigned int i_truncated_bytes, struct timeval pts,
1500                         unsigned int duration )
1501 {
1502     live_track_t   *tk = (live_track_t*)p_private;
1503     demux_t        *p_demux = tk->p_demux;
1504     demux_sys_t    *p_sys = p_demux->p_sys;
1505     block_t        *p_block;
1506
1507     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1508
1509     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1510         (int64_t)pts.tv_usec;
1511
1512     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1513     i_pts &= INT64_C(0x00ffffffffffffff);
1514
1515     /* Retrieve NPT for this pts */
1516     tk->i_npt = (int64_t) INT64_C(1000000) * tk->sub->getNormalPlayTime(pts);
1517
1518     if( tk->b_quicktime && tk->p_es == NULL )
1519     {
1520         QuickTimeGenericRTPSource *qtRTPSource =
1521             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1522         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1523         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1524
1525         if( tk->fmt.i_cat == VIDEO_ES ) {
1526             if( qtState.sdAtomSize < 16 + 32 )
1527             {
1528                 /* invalid */
1529                 p_sys->event = 0xff;
1530                 tk->waiting = 0;
1531                 return;
1532             }
1533             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1534             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1535             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1536
1537             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1538             {
1539                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1540                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1541                                   + qtRTPSource->qtState.sdAtomSize;
1542                 while (pos+8 < endpos) {
1543                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1544                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1545                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1546                         atomLength > 8 &&
1547                         atomLength <= INT_MAX )
1548                     {
1549                         tk->fmt.i_extra = atomLength-8;
1550                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1551                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1552                         break;
1553                     }
1554                     pos += atomLength;
1555                 }
1556             }
1557             else
1558             {
1559                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1560                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1561                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1562             }
1563         }
1564         else {
1565             if( qtState.sdAtomSize < 4 )
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         }
1574         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1575     }
1576
1577 #if 0
1578     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1579              i_size,
1580              pts.tv_sec * 1000000LL + pts.tv_usec );
1581 #endif
1582
1583     /* grow buffer if it looks like buffer is too small, but don't eat
1584      * up all the memory on strange streams */
1585     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1586     {
1587         void *p_tmp;
1588         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1589         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1590         tk->i_buffer *= 2;
1591         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1592         if( p_tmp == NULL )
1593         {
1594             msg_Warn( p_demux, "realloc failed" );
1595         }
1596         else
1597         {
1598             tk->p_buffer = (uint8_t*)p_tmp;
1599         }
1600     }
1601     if( i_size > tk->i_buffer )
1602     {
1603         msg_Warn( p_demux, "buffer overflow" );
1604     }
1605     /* FIXME could i_size be > buffer size ? */
1606     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1607         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1608     {
1609         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1610
1611         p_block = block_New( p_demux, i_size + 1 );
1612         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1613         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1614     }
1615     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1616     {
1617         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1618         uint32_t header = h261Source->lastSpecialHeader();
1619         p_block = block_New( p_demux, i_size + 4 );
1620         memcpy( p_block->p_buffer, &header, 4 );
1621         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1622
1623         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1624             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1625     }
1626     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1627     {
1628         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1629             msg_Warn( p_demux, "unsupported NAL type for H264" );
1630
1631         /* Normal NAL type */
1632         p_block = block_New( p_demux, i_size + 4 );
1633         p_block->p_buffer[0] = 0x00;
1634         p_block->p_buffer[1] = 0x00;
1635         p_block->p_buffer[2] = 0x00;
1636         p_block->p_buffer[3] = 0x01;
1637         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1638     }
1639     else if( tk->b_asf )
1640     {
1641         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1642         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1643
1644         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1645     }
1646     else
1647     {
1648         p_block = block_New( p_demux, i_size );
1649         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1650     }
1651
1652     if( p_sys->i_pcr < i_pts )
1653     {
1654         p_sys->i_pcr = i_pts;
1655     }
1656
1657     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1658     {
1659         p_block->i_pts = i_pts;
1660     }
1661
1662     /* Update our global npt value */
1663     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1664         p_sys->i_npt = tk->i_npt; 
1665
1666     if( !tk->b_muxed )
1667     {
1668         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1669         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1670     }
1671
1672     if( tk->b_muxed )
1673     {
1674         stream_DemuxSend( tk->p_out_muxed, p_block );
1675     }
1676     else if( tk->b_asf )
1677     {
1678         stream_DemuxSend( p_sys->p_out_asf, p_block );
1679     }
1680     else
1681     {
1682         es_out_Send( p_demux->out, tk->p_es, p_block );
1683     }
1684
1685     /* warn that's ok */
1686     p_sys->event = 0xff;
1687
1688     /* we have read data */
1689     tk->waiting = 0;
1690     p_demux->p_sys->b_no_data = false;
1691     p_demux->p_sys->i_no_data_ti = 0;
1692
1693     if( i_pts > 0 && !tk->b_muxed )
1694     {
1695         tk->i_pts = i_pts;
1696     }
1697 }
1698
1699 /*****************************************************************************
1700  *
1701  *****************************************************************************/
1702 static void StreamClose( void *p_private )
1703 {
1704     live_track_t   *tk = (live_track_t*)p_private;
1705     demux_t        *p_demux = tk->p_demux;
1706     demux_sys_t    *p_sys = p_demux->p_sys;
1707
1708     msg_Dbg( p_demux, "StreamClose" );
1709
1710     p_sys->event = 0xff;
1711     p_demux->b_error = true;
1712 }
1713
1714
1715 /*****************************************************************************
1716  *
1717  *****************************************************************************/
1718 static void TaskInterrupt( void *p_private )
1719 {
1720     demux_t *p_demux = (demux_t*)p_private;
1721
1722     p_demux->p_sys->i_no_data_ti++;
1723
1724     /* Avoid lock */
1725     p_demux->p_sys->event = 0xff;
1726 }
1727
1728 /*****************************************************************************
1729  *
1730  *****************************************************************************/
1731 static void* TimeoutPrevention( vlc_object_t * p_this )
1732 {
1733     timeout_thread_t *p_timeout = (timeout_thread_t *)p_this;
1734     p_timeout->b_die = false;
1735     p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1736     p_timeout->i_remain *= 1000000;
1737
1738     vlc_thread_ready( p_timeout );
1739
1740     /* Avoid lock */
1741     while( vlc_object_alive (p_timeout) )
1742     {
1743         if( p_timeout->i_remain <= 0 )
1744         {
1745             char *psz_bye = NULL;
1746             p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1747             p_timeout->i_remain *= 1000000;
1748             msg_Dbg( p_timeout, "reset the timeout timer" );
1749             if( p_timeout->b_handle_keep_alive == true )
1750             {
1751                 p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1752                 p_timeout->p_sys->b_timeout_call = false;
1753             }
1754             else
1755             {
1756                 p_timeout->p_sys->b_timeout_call = true;
1757             }
1758         }
1759         p_timeout->i_remain -= 200000;
1760         msleep( 200000 ); /* 200 ms */
1761     }
1762 }
1763
1764 /*****************************************************************************
1765  *
1766  *****************************************************************************/
1767 static int b64_decode( char *dest, char *src );
1768
1769 static int ParseASF( demux_t *p_demux )
1770 {
1771     demux_sys_t    *p_sys = p_demux->p_sys;
1772
1773     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1774     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1775     char *psz_end;
1776     block_t *p_header;
1777
1778     /* Parse the asf header */
1779     if( psz_asf == NULL )
1780         return VLC_EGENERIC;
1781
1782     psz_asf += strlen( psz_marker );
1783     psz_asf = strdup( psz_asf );    /* Duplicate it */
1784     psz_end = strchr( psz_asf, '\n' );
1785
1786     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1787         *psz_end-- = '\0';
1788
1789     if( psz_asf >= psz_end )
1790     {
1791         free( psz_asf );
1792         return VLC_EGENERIC;
1793     }
1794
1795     /* Always smaller */
1796     p_header = block_New( p_demux, psz_end - psz_asf );
1797     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1798     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1799     if( p_header->i_buffer <= 0 )
1800     {
1801         free( psz_asf );
1802         return VLC_EGENERIC;
1803     }
1804
1805     /* Parse it to get packet size */
1806     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1807
1808     /* Send it to demuxer */
1809     stream_DemuxSend( p_sys->p_out_asf, p_header );
1810
1811     free( psz_asf );
1812     return VLC_SUCCESS;
1813 }
1814
1815
1816 static unsigned char* parseH264ConfigStr( char const* configStr,
1817                                           unsigned int& configSize )
1818 {
1819     char *dup, *psz;
1820     int i, i_records = 1;
1821
1822     if( configSize )
1823     configSize = 0;
1824
1825     if( configStr == NULL || *configStr == '\0' )
1826         return NULL;
1827
1828     psz = dup = strdup( configStr );
1829
1830     /* Count the number of comma's */
1831     for( psz = dup; *psz != '\0'; ++psz )
1832     {
1833         if( *psz == ',')
1834         {
1835             ++i_records;
1836             *psz = '\0';
1837         }
1838     }
1839
1840     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1841     psz = dup;
1842     for( i = 0; i < i_records; i++ )
1843     {
1844         cfg[configSize++] = 0x00;
1845         cfg[configSize++] = 0x00;
1846         cfg[configSize++] = 0x00;
1847         cfg[configSize++] = 0x01;
1848
1849         configSize += b64_decode( (char*)&cfg[configSize], psz );
1850         psz += strlen(psz)+1;
1851     }
1852
1853     free( dup );
1854     return cfg;
1855 }
1856
1857 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1858 static int b64_decode( char *dest, char *src )
1859 {
1860     const char *dest_start = dest;
1861     int  i_level;
1862     int  last = 0;
1863     int  b64[256] = {
1864         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1865         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1866         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1867         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1868         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1869         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1870         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1871         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1872         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1873         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1874         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1875         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1876         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1877         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1878         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1879         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1880         };
1881
1882     for( i_level = 0; *src != '\0'; src++ )
1883     {
1884         int  c;
1885
1886         c = b64[(unsigned int)*src];
1887         if( c == -1 )
1888         {
1889             continue;
1890         }
1891
1892         switch( i_level )
1893         {
1894             case 0:
1895                 i_level++;
1896                 break;
1897             case 1:
1898                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1899                 i_level++;
1900                 break;
1901             case 2:
1902                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1903                 i_level++;
1904                 break;
1905             case 3:
1906                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1907                 i_level = 0;
1908         }
1909         last = c;
1910     }
1911
1912     *dest = '\0';
1913
1914     return dest - dest_start;
1915 }