git.sesse.net Git - vlc/blob - 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 #include <assert.h>
  52
  53
  54 #if defined( WIN32 )
  55 #   include <winsock2.h>
  56 #endif
  57
  58 #include "UsageEnvironment.hh"
  59 #include "BasicUsageEnvironment.hh"
  60 #include "GroupsockHelper.hh"
  61 #include "liveMedia.hh"
  62
  63 extern "C" {
  64 #include "../access/mms/asf.h"  /* Who said ugly ? */
  65 }
  66
  67 using namespace std;
  68
  69 /*****************************************************************************
  70  * Module descriptor
  71  *****************************************************************************/
  72 static int  Open ( vlc_object_t * );
  73 static void Close( vlc_object_t * );
  74
  75 #define CACHING_TEXT N_("Caching value (ms)")
  76 #define CACHING_LONGTEXT N_( \
  77     "Allows you to modify the default caching value for RTSP streams. This " \
  78     "value should be set in millisecond units." )
  79
  80 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  81 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  82     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  83     "for communication. In this mode you cannot connect to normal RTSP servers." )
  84
  85 #define USER_TEXT N_("RTSP user name")
  86 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  87     "be used for authenticating the connection.")
  88 #define PASS_TEXT N_("RTSP password")
  89 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  90     "used for the connection.")
  91
  92 vlc_module_begin();
  93     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) );
  94     set_capability( "demux", 50 );
  95     set_shortname( "RTP/RTSP");
  96     set_callbacks( Open, Close );
  97     add_shortcut( "live" );
  98     add_shortcut( "livedotcom" );
  99     set_category( CAT_INPUT );
 100     set_subcategory( SUBCAT_INPUT_DEMUX );
 101
 102     add_submodule();
 103         set_description( N_("RTSP/RTP access and demux") );
 104         add_shortcut( "rtsp" );
 105         add_shortcut( "sdp" );
 106         set_capability( "access_demux", 0 );
 107         set_callbacks( Open, Close );
 108         add_bool( "rtsp-tcp", 0, NULL,
 109                   N_("Use RTP over RTSP (TCP)"),
 110                   N_("Use RTP over RTSP (TCP)"), true );
 111         add_integer( "rtp-client-port", -1, NULL,
 112                   N_("Client port"),
 113                   N_("Port to use for the RTP source of the session"), true );
 114         add_bool( "rtsp-mcast", false, NULL,
 115                   N_("Force multicast RTP via RTSP"),
 116                   N_("Force multicast RTP via RTSP"), true );
 117         add_bool( "rtsp-http", 0, NULL,
 118                   N_("Tunnel RTSP and RTP over HTTP"),
 119                   N_("Tunnel RTSP and RTP over HTTP"), true );
 120         add_integer( "rtsp-http-port", 80, NULL,
 121                   N_("HTTP tunnel port"),
 122                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 123                   true );
 124         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 125                     CACHING_TEXT, CACHING_LONGTEXT, true );
 126         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 127                     KASENNA_LONGTEXT, true );
 128         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 129                     USER_LONGTEXT, true );
 130         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 131                     PASS_LONGTEXT, true );
 132 vlc_module_end();
 133
 134
 135 /*****************************************************************************
 136  * Local prototypes
 137  *****************************************************************************/
 138
 139 typedef struct
 140 {
 141     demux_t         *p_demux;
 142     MediaSubsession *sub;
 143
 144     es_format_t     fmt;
 145     es_out_id_t     *p_es;
 146
 147     bool            b_muxed;
 148     bool            b_quicktime;
 149     bool            b_asf;
 150     stream_t        *p_out_muxed;    /* for muxed stream */
 151
 152     uint8_t         *p_buffer;
 153     unsigned int    i_buffer;
 154
 155     bool            b_rtcp_sync;
 156     char            waiting;
 157     int64_t         i_pts;
 158     float           i_npt;
 159
 160 } live_track_t;
 161
 162 struct timeout_thread_t
 163 {
 164     demux_sys_t  *p_sys;
 165     vlc_thread_t handle;
 166     bool         b_handle_keep_alive;
 167 };
 168
 169 struct demux_sys_t
 170 {
 171     char            *p_sdp;    /* XXX mallocated */
 172     char            *psz_path; /* URL-encoded path */
 173     vlc_url_t       url;
 174
 175     MediaSession     *ms;
 176     TaskScheduler    *scheduler;
 177     UsageEnvironment *env ;
 178     RTSPClient       *rtsp;
 179
 180     /* */
 181     int              i_track;
 182     live_track_t     **track;   /* XXX mallocated */
 183
 184     /* Weird formats */
 185     asf_header_t     asfh;
 186     stream_t         *p_out_asf;
 187     bool             b_real;
 188
 189     /* */
 190     int64_t          i_pcr; /* The clock */
 191     float            i_npt;
 192     float            i_npt_length;
 193     float            i_npt_start;
 194
 195     /* timeout thread information */
 196     int              i_timeout;     /* session timeout value in seconds */
 197     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 198     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 199
 200     /* */
 201     bool             b_force_mcast;
 202     bool             b_multicast;   /* if one of the tracks is multicasted */
 203     bool             b_no_data;     /* if we never received any data */
 204     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 205
 206     char             event;
 207
 208     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 209 };
 210
 211 static int Demux  ( demux_t * );
 212 static int Control( demux_t *, int, va_list );
 213
 214 static int Connect      ( demux_t * );
 215 static int SessionsSetup( demux_t * );
 216 static int Play         ( demux_t *);
 217 static int ParseASF     ( demux_t * );
 218 static int RollOverTcp  ( demux_t * );
 219
 220 static void StreamRead  ( void *, unsigned int, unsigned int,
 221                           struct timeval, unsigned int );
 222 static void StreamClose ( void * );
 223 static void TaskInterrupt( void * );
 224
 225 static void* TimeoutPrevention( void * );
 226
 227 static unsigned char* parseH264ConfigStr( char const* configStr,
 228                                           unsigned int& configSize );
 229
 230 /*****************************************************************************
 231  * DemuxOpen:
 232  *****************************************************************************/
 233 static int  Open ( vlc_object_t *p_this )
 234 {
 235     demux_t     *p_demux = (demux_t*)p_this;
 236     demux_sys_t *p_sys = NULL;
 237
 238     MediaSubsessionIterator *iter   = NULL;
 239     MediaSubsession         *sub    = NULL;
 240     int i, i_return;
 241     int i_error = VLC_EGENERIC;
 242
 243     if( p_demux->s )
 244     {
 245         /* See if it looks like a SDP
 246            v, o, s fields are mandatory and in this order */
 247         const uint8_t *p_peek;
 248         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 249
 250         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 251             memcmp( p_peek, "v=0\n", 4 ) &&
 252             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 253         {
 254             return VLC_EGENERIC;
 255         }
 256     }
 257     else
 258     {
 259         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 260     }
 261
 262     p_demux->pf_demux  = Demux;
 263     p_demux->pf_control= Control;
 264     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 265     if( !p_sys ) return VLC_ENOMEM;
 266
 267     p_sys->p_sdp = NULL;
 268     p_sys->scheduler = NULL;
 269     p_sys->env = NULL;
 270     p_sys->ms = NULL;
 271     p_sys->rtsp = NULL;
 272     p_sys->i_track = 0;
 273     p_sys->track   = NULL;
 274     p_sys->i_pcr = 0;
 275     p_sys->i_npt = 0.;
 276     p_sys->i_npt_start = 0.;
 277     p_sys->i_npt_length = 0.;
 278     p_sys->p_out_asf = NULL;
 279     p_sys->b_no_data = true;
 280     p_sys->i_no_data_ti = 0;
 281     p_sys->p_timeout = NULL;
 282     p_sys->i_timeout = 0;
 283     p_sys->b_timeout_call = false;
 284     p_sys->b_multicast = false;
 285     p_sys->b_real = false;
 286     p_sys->psz_path = strdup( p_demux->psz_path );
 287     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 288     p_sys->b_get_param = false;
 289
 290     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 291     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 292
 293     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 294     {
 295         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 296         goto error;
 297     }
 298     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 299     {
 300         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 301         goto error;
 302     }
 303
 304     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 305     {
 306         char *p = p_sys->psz_path;
 307         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 308     }
 309
 310     if( p_demux->s != NULL )
 311     {
 312         /* Gather the complete sdp file */
 313         int     i_sdp       = 0;
 314         int     i_sdp_max   = 1000;
 315         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 316
 317         if( !p_sdp )
 318         {
 319             i_error = VLC_ENOMEM;
 320             goto error;
 321         }
 322
 323         for( ;; )
 324         {
 325             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 326                                       i_sdp_max - i_sdp - 1 );
 327
 328             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 329             {
 330                 free( p_sdp );
 331                 goto error;
 332             }
 333
 334             if( i_read < 0 )
 335             {
 336                 msg_Err( p_demux, "failed to read SDP" );
 337                 free( p_sdp );
 338                 goto error;
 339             }
 340
 341             i_sdp += i_read;
 342
 343             if( i_read < i_sdp_max - i_sdp - 1 )
 344             {
 345                 p_sdp[i_sdp] = '\0';
 346                 break;
 347             }
 348
 349             i_sdp_max += 1000;
 350             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 351         }
 352         p_sys->p_sdp = (char*)p_sdp;
 353     }
 354     else if( ( p_demux->s == NULL ) &&
 355              !strcasecmp( p_demux->psz_access, "sdp" ) )
 356     {
 357         /* sdp:// link from SAP */
 358         p_sys->p_sdp = strdup( p_sys->psz_path );
 359     }
 360     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 361     {
 362         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 363         goto error;
 364     }
 365
 366     if( p_sys->p_sdp == NULL )
 367     {
 368         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 369         i_error = VLC_ENOMEM;
 370         goto error;
 371     }
 372
 373     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 374     {
 375         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 376         goto error;
 377     }
 378
 379     if( p_sys->b_real ) goto error;
 380
 381     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 382         goto error;
 383
 384     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 385     {
 386         msg_Err( p_demux, "cannot find a usable asf header" );
 387         /* TODO Clean tracks */
 388         goto error;
 389     }
 390
 391     if( p_sys->i_track <= 0 )
 392         goto error;
 393
 394     return VLC_SUCCESS;
 395
 396 error:
 397     for( i = 0; i < p_sys->i_track; i++ )
 398     {
 399         live_track_t *tk = p_sys->track[i];
 400
 401         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 402         es_format_Clean( &tk->fmt );
 403         free( tk->p_buffer );
 404         free( tk );
 405     }
 406
 407     if( p_sys->i_track ) free( p_sys->track );
 408     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 409     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 410     if( p_sys->ms ) Medium::close( p_sys->ms );
 411     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 412     if( p_sys->env ) p_sys->env->reclaim();
 413     if( p_sys->p_timeout )
 414     {
 415         vlc_cancel( p_sys->p_timeout->handle );
 416         vlc_join( p_sys->p_timeout->handle, NULL );
 417         free( p_sys->p_timeout );
 418     }
 419     delete p_sys->scheduler;
 420     free( p_sys->p_sdp );
 421     free( p_sys->psz_path );
 422
 423     vlc_UrlClean( &p_sys->url );
 424
 425     free( p_sys );
 426     return i_error;
 427 }
 428
 429 /*****************************************************************************
 430  * DemuxClose:
 431  *****************************************************************************/
 432 static void Close( vlc_object_t *p_this )
 433 {
 434     demux_t *p_demux = (demux_t*)p_this;
 435     demux_sys_t *p_sys = p_demux->p_sys;
 436     int i;
 437
 438     for( i = 0; i < p_sys->i_track; i++ )
 439     {
 440         live_track_t *tk = p_sys->track[i];
 441
 442         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 443         es_format_Clean( &tk->fmt );
 444         free( tk->p_buffer );
 445         free( tk );
 446     }
 447
 448     if( p_sys->i_track ) free( p_sys->track );
 449     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 450     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 451     if( p_sys->ms ) Medium::close( p_sys->ms );
 452     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 453     if( p_sys->env ) p_sys->env->reclaim();
 454     if( p_sys->p_timeout )
 455     {
 456         vlc_cancel( p_sys->p_timeout->handle );
 457         vlc_join( p_sys->p_timeout->handle, NULL );
 458         free( 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     p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 552     delete [] psz_options;
 553
 554     p_sdp = p_sys->rtsp->describeURL( psz_url, &authenticator,
 555                          var_GetBool( p_demux, "rtsp-kasenna" ) );
 556     if( p_sdp == NULL )
 557     {
 558         /* failure occurred */
 559         int i_code = 0;
 560         const char *psz_error = p_sys->env->getResultMsg();
 561
 562         if( var_GetBool( p_demux, "rtsp-http" ) )
 563             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 564                     &i_code );
 565         else
 566         {
 567             const char *psz_tmp = strstr( psz_error, "RTSP" );
 568             if( psz_tmp )
 569                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 570             else
 571                 i_code = 0;
 572         }
 573         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 574
 575         if( b_firstpass )
 576         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 577              * first time. This is a workaround to avoid asking for a
 578              * user/passwd the first time the code passess here. */
 579             i_code = 0;
 580             b_firstpass = false;
 581         }
 582
 583         if( i_code == 401 )
 584         {
 585             int i_result;
 586             msg_Dbg( p_demux, "authentication failed" );
 587
 588             free( psz_user );
 589             free( psz_pwd );
 590             psz_user = psz_pwd = NULL;
 591
 592             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 593                            _("Please enter a valid login name and a password."),
 594                                                    &psz_user, &psz_pwd );
 595             if( i_result == DIALOG_OK_YES )
 596             {
 597                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 598                          psz_user, psz_pwd );
 599                 goto describe;
 600             }
 601         }
 602         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 603         {
 604             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 605             vlc_value_t val;
 606             val.b_bool = true;
 607             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 608             var_Set( p_demux, "rtsp-http", val );
 609             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 610             p_sys->rtsp = NULL;
 611             goto createnew;
 612         }
 613         else
 614         {
 615             msg_Dbg( p_demux, "connection timeout, retrying" );
 616             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 617             p_sys->rtsp = NULL;
 618             if( i_lefttries > 0 )
 619                 goto createnew;
 620         }
 621         i_ret = VLC_EGENERIC;
 622     }
 623
 624     /* malloc-ated copy */
 625     free( psz_url );
 626     free( psz_user );
 627     free( psz_pwd );
 628
 629     free( p_sys->p_sdp );
 630     p_sys->p_sdp = NULL;
 631     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 632     delete[] p_sdp;
 633
 634     return i_ret;
 635 }
 636
 637 /*****************************************************************************
 638  * SessionsSetup: prepares the subsessions and does the SETUP
 639  *****************************************************************************/
 640 static int SessionsSetup( demux_t *p_demux )
 641 {
 642     demux_sys_t             *p_sys  = p_demux->p_sys;
 643     MediaSubsessionIterator *iter   = NULL;
 644     MediaSubsession         *sub    = NULL;
 645
 646     bool           b_rtsp_tcp = false;
 647     int            i_client_port;
 648     int            i_return = VLC_SUCCESS;
 649     unsigned int   i_buffer = 0;
 650     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 651
 652     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 653                     var_GetBool( p_demux, "rtsp-http" );
 654     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 655
 656     /* Create the session from the SDP */
 657     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 658     {
 659         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 660             p_sys->env->getResultMsg() );
 661         return VLC_EGENERIC;
 662     }
 663
 664     /* Initialise each media subsession */
 665     iter = new MediaSubsessionIterator( *p_sys->ms );
 666     while( ( sub = iter->next() ) != NULL )
 667     {
 668         Boolean bInit;
 669         live_track_t *tk;
 670
 671         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 672         {
 673             delete iter;
 674             return VLC_EGENERIC;
 675         }
 676
 677         /* Value taken from mplayer */
 678         if( !strcmp( sub->mediumName(), "audio" ) )
 679             i_buffer = 100000;
 680         else if( !strcmp( sub->mediumName(), "video" ) )
 681             i_buffer = 2000000;
 682         else continue;
 683
 684         if( i_client_port != -1 )
 685         {
 686             sub->setClientPortNum( i_client_port );
 687             i_client_port += 2;
 688         }
 689
 690         if( strcasestr( sub->codecName(), "REAL" ) )
 691         {
 692             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 693             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 694             continue;
 695         }
 696
 697         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 698             bInit = sub->initiate( 4 ); /* Constant ? */
 699         else
 700             bInit = sub->initiate();
 701
 702         if( !bInit )
 703         {
 704             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 705                       sub->mediumName(), sub->codecName(),
 706                       p_sys->env->getResultMsg() );
 707         }
 708         else
 709         {
 710             if( sub->rtpSource() != NULL )
 711             {
 712                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 713
 714                 /* Increase the buffer size */
 715                 if( i_buffer > 0 )
 716                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 717
 718                 /* Increase the RTP reorder timebuffer just a bit */
 719                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 720             }
 721             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 722                      sub->codecName() );
 723
 724             /* Issue the SETUP */
 725             if( p_sys->rtsp )
 726             {
 727                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 728                                            b_rtsp_tcp ? True : False,
 729                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 730                 {
 731                     /* if we get an unsupported transport error, toggle TCP use and try again */
 732                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 733                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 734                                            b_rtsp_tcp ? False : True,
 735                                            False ) )
 736                     {
 737                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 738                                  sub->codecName(), p_sys->env->getResultMsg() );
 739                         continue;
 740                     }
 741                 }
 742             }
 743
 744             /* Check if we will receive data from this subsession for this track */
 745             if( sub->readSource() == NULL ) continue;
 746             if( !p_sys->b_multicast )
 747             {
 748                 /* Check, because we need diff. rollover behaviour for multicast */
 749                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 750             }
 751
 752             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 753             if( !tk )
 754             {
 755                 delete iter;
 756                 return VLC_ENOMEM;
 757             }
 758             tk->p_demux     = p_demux;
 759             tk->sub         = sub;
 760             tk->p_es        = NULL;
 761             tk->b_quicktime = false;
 762             tk->b_asf       = false;
 763             tk->b_muxed     = false;
 764             tk->p_out_muxed = NULL;
 765             tk->waiting     = 0;
 766             tk->b_rtcp_sync = false;
 767             tk->i_pts       = 0;
 768             tk->i_npt       = 0.;
 769             tk->i_buffer    = 65536;
 770             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 771             if( !tk->p_buffer )
 772             {
 773                 delete iter;
 774                 return VLC_ENOMEM;
 775             }
 776
 777             /* Value taken from mplayer */
 778             if( !strcmp( sub->mediumName(), "audio" ) )
 779             {
 780                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 781                 tk->fmt.audio.i_channels = sub->numChannels();
 782                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 783
 784                 if( !strcmp( sub->codecName(), "MPA" ) ||
 785                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 786                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 787                 {
 788                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 789                     tk->fmt.audio.i_rate = 0;
 790                 }
 791                 else if( !strcmp( sub->codecName(), "AC3" ) )
 792                 {
 793                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 794                     tk->fmt.audio.i_rate = 0;
 795                 }
 796                 else if( !strcmp( sub->codecName(), "L16" ) )
 797                 {
 798                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 799                     tk->fmt.audio.i_bitspersample = 16;
 800                 }
 801                 else if( !strcmp( sub->codecName(), "L8" ) )
 802                 {
 803                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 804                     tk->fmt.audio.i_bitspersample = 8;
 805                 }
 806                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 807                 {
 808                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 809                 }
 810                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 811                 {
 812                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 813                 }
 814                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 815                 {
 816                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 817                     tk->fmt.audio.i_rate = 8000;
 818                     tk->fmt.audio.i_channels = 1;
 819                     if( !strcmp( sub->codecName()+5, "40" ) )
 820                         tk->fmt.i_bitrate = 40000;
 821                     else if( !strcmp( sub->codecName()+5, "32" ) )
 822                         tk->fmt.i_bitrate = 32000;
 823                     else if( !strcmp( sub->codecName()+5, "24" ) )
 824                         tk->fmt.i_bitrate = 24000;
 825                     else if( !strcmp( sub->codecName()+5, "16" ) )
 826                         tk->fmt.i_bitrate = 16000;
 827                 }
 828                 else if( !strcmp( sub->codecName(), "AMR" ) )
 829                 {
 830                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 831                 }
 832                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 833                 {
 834                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 835                 }
 836                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 837                 {
 838                     unsigned int i_extra;
 839                     uint8_t      *p_extra;
 840
 841                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 842
 843                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 844                                                              i_extra ) ) )
 845                     {
 846                         tk->fmt.i_extra = i_extra;
 847                         tk->fmt.p_extra = malloc( i_extra );
 848                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 849                         delete[] p_extra;
 850                     }
 851                     /* Because the "faad" decoder does not handle the LATM data length field
 852                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 853                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 854                 }
 855                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 856                 {
 857                     unsigned int i_extra;
 858                     uint8_t      *p_extra;
 859
 860                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 861
 862                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 863                                                            i_extra ) ) )
 864                     {
 865                         tk->fmt.i_extra = i_extra;
 866                         tk->fmt.p_extra = malloc( i_extra );
 867                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 868                         delete[] p_extra;
 869                     }
 870                 }
 871                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 872                 {
 873                     tk->b_asf = true;
 874                     if( p_sys->p_out_asf == NULL )
 875                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 876                                                             p_demux->out );
 877                 }
 878                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 879                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 880                 {
 881                     tk->b_quicktime = true;
 882                 }
 883                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 884                 {
 885                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 886                     if ( sub->rtpTimestampFrequency() )
 887                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 888                     else
 889                     {
 890                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 891                         tk->fmt.audio.i_rate = 8000;
 892                     }
 893                 }
 894             }
 895             else if( !strcmp( sub->mediumName(), "video" ) )
 896             {
 897                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 898                 if( !strcmp( sub->codecName(), "MPV" ) )
 899                 {
 900                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 901                 }
 902                 else if( !strcmp( sub->codecName(), "H263" ) ||
 903                          !strcmp( sub->codecName(), "H263-1998" ) ||
 904                          !strcmp( sub->codecName(), "H263-2000" ) )
 905                 {
 906                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 907                 }
 908                 else if( !strcmp( sub->codecName(), "H261" ) )
 909                 {
 910                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 911                 }
 912                 else if( !strcmp( sub->codecName(), "H264" ) )
 913                 {
 914                     unsigned int i_extra = 0;
 915                     uint8_t      *p_extra = NULL;
 916
 917                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 918                     tk->fmt.b_packetized = false;
 919
 920                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 921                                                     i_extra ) ) )
 922                     {
 923                         tk->fmt.i_extra = i_extra;
 924                         tk->fmt.p_extra = malloc( i_extra );
 925                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 926
 927                         delete[] p_extra;
 928                     }
 929                 }
 930                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 931                 {
 932                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 933                 }
 934                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 935                 {
 936                     unsigned int i_extra;
 937                     uint8_t      *p_extra;
 938
 939                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 940
 941                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 942                                                            i_extra ) ) )
 943                     {
 944                         tk->fmt.i_extra = i_extra;
 945                         tk->fmt.p_extra = malloc( i_extra );
 946                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 947                         delete[] p_extra;
 948                     }
 949                 }
 950                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 951                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 952                          !strcmp( sub->codecName(), "X-QDM" ) ||
 953                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 954                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 955                 {
 956                     tk->b_quicktime = true;
 957                 }
 958                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 959                 {
 960                     tk->b_muxed = true;
 961                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 962                 }
 963                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 964                          !strcmp( sub->codecName(), "MP1S" ) )
 965                 {
 966                     tk->b_muxed = true;
 967                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 968                                                        p_demux->out );
 969                 }
 970                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 971                 {
 972                     tk->b_asf = true;
 973                     if( p_sys->p_out_asf == NULL )
 974                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 975                                                             p_demux->out );;
 976                 }
 977             }
 978
 979             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 980             {
 981                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 982             }
 983
 984             if( sub->rtcpInstance() != NULL )
 985             {
 986                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 987             }
 988
 989             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 990             {
 991                 /* Append */
 992                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 993                 p_sys->track[p_sys->i_track++] = tk;
 994             }
 995             else
 996             {
 997                 /* BUG ??? */
 998                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
 999                 es_format_Clean( &tk->fmt );
1000                 free( tk );
1001             }
1002         }
1003     }
1004     delete iter;
1005     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1006
1007     /* Retrieve the starttime if possible */
1008     p_sys->i_npt_start = p_sys->ms->playStartTime();
1009
1010     /* Retrieve the duration if possible */
1011     p_sys->i_npt_length = p_sys->ms->playEndTime();
1012
1013     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1014     return i_return;
1015 }
1016
1017 /*****************************************************************************
1018  * Play: starts the actual playback of the stream
1019  *****************************************************************************/
1020 static int Play( demux_t *p_demux )
1021 {
1022     demux_sys_t *p_sys = p_demux->p_sys;
1023     int i;
1024
1025     if( p_sys->rtsp )
1026     {
1027         /* The PLAY */
1028         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1029         {
1030             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1031             return VLC_EGENERIC;
1032         }
1033
1034         /* Retrieve the timeout value and set up a timeout prevention thread */
1035         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1036         if( p_sys->i_timeout <= 0 )
1037             p_sys->i_timeout = 60; /* default value from RFC2326 */
1038
1039         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1040         if( !p_sys->p_timeout && p_sys->b_get_param )
1041         {
1042             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1043             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1044             p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1045             if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1046                            p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1047             {
1048                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1049                 free( p_sys->p_timeout );
1050                 p_sys->p_timeout = NULL;
1051             }
1052             msg_Dbg( p_demux, "spawned timeout thread" );
1053         }
1054     }
1055     p_sys->i_pcr = 0;
1056
1057     /* Retrieve the starttime if possible */
1058     p_sys->i_npt_start = p_sys->ms->playStartTime();
1059     p_sys->i_npt_length = p_sys->ms->playEndTime();
1060
1061     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1062     return VLC_SUCCESS;
1063 }
1064
1065
1066 /*****************************************************************************
1067  * Demux:
1068  *****************************************************************************/
1069 static int Demux( demux_t *p_demux )
1070 {
1071     demux_sys_t    *p_sys = p_demux->p_sys;
1072     TaskToken      task;
1073
1074     bool            b_send_pcr = true;
1075     int64_t         i_pcr = 0;
1076     int             i;
1077
1078     /* Check if we need to send the server a Keep-A-Live signal */
1079     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1080     {
1081         char *psz_bye = NULL;
1082         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1083         p_sys->b_timeout_call = false;
1084     }
1085
1086     for( i = 0; i < p_sys->i_track; i++ )
1087     {
1088         live_track_t *tk = p_sys->track[i];
1089
1090         if( tk->b_asf || tk->b_muxed )
1091             b_send_pcr = false;
1092 #if 0
1093         if( i_pcr == 0 )
1094         {
1095             i_pcr = tk->i_pts;
1096         }
1097         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1098         {
1099             i_pcr = tk->i_pts ;
1100         }
1101 #endif
1102     }
1103     if( p_sys->i_pcr > 0 )
1104     {
1105         if( b_send_pcr )
1106             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1107     }
1108
1109     /* First warn we want to read data */
1110     p_sys->event = 0;
1111     for( i = 0; i < p_sys->i_track; i++ )
1112     {
1113         live_track_t *tk = p_sys->track[i];
1114
1115         if( tk->waiting == 0 )
1116         {
1117             tk->waiting = 1;
1118             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1119                                           StreamRead, tk, StreamClose, tk );
1120         }
1121     }
1122     /* Create a task that will be called if we wait more than 300ms */
1123     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1124
1125     /* Do the read */
1126     p_sys->scheduler->doEventLoop( &p_sys->event );
1127
1128     /* remove the task */
1129     p_sys->scheduler->unscheduleDelayedTask( task );
1130
1131     /* Check for gap in pts value */
1132     for( i = 0; i < p_sys->i_track; i++ )
1133     {
1134         live_track_t *tk = p_sys->track[i];
1135
1136         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1137             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1138         {
1139             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1140
1141             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1142             tk->b_rtcp_sync = true;
1143             /* reset PCR */
1144             tk->i_pts = 0;
1145             tk->i_npt = 0.;
1146             p_sys->i_pcr = 0;
1147             p_sys->i_npt = 0.;
1148             i_pcr = 0;
1149         }
1150     }
1151
1152     if( p_sys->b_multicast && p_sys->b_no_data &&
1153         ( p_sys->i_no_data_ti > 120 ) )
1154     {
1155         /* FIXME Make this configurable
1156         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1157         return 0;
1158         */
1159     }
1160     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1161              ( p_sys->i_no_data_ti > 34 ) )
1162     {
1163         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1164                                 var_GetBool( p_demux, "rtsp-http" );
1165
1166         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1167         {
1168             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1169             if( RollOverTcp( p_demux ) )
1170             {
1171                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1172                 return 0;
1173             }
1174             return 1;
1175         }
1176         msg_Err( p_demux, "no data received in 10s, aborting" );
1177         return 0;
1178     }
1179     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1180     {
1181         /* EOF ? */
1182         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1183         return 0;
1184     }
1185     return p_demux->b_error ? 0 : 1;
1186 }
1187
1188 /*****************************************************************************
1189  * Control:
1190  *****************************************************************************/
1191 static int Control( demux_t *p_demux, int i_query, va_list args )
1192 {
1193     demux_sys_t *p_sys = p_demux->p_sys;
1194     int64_t *pi64, i64;
1195     double  *pf, f;
1196     bool *pb, *pb2, b_bool;
1197     int *pi_int;
1198
1199     switch( i_query )
1200     {
1201         case DEMUX_GET_TIME:
1202             pi64 = (int64_t*)va_arg( args, int64_t * );
1203             if( p_sys->i_npt > 0 )
1204             {
1205                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1206                 return VLC_SUCCESS;
1207             }
1208             return VLC_EGENERIC;
1209
1210         case DEMUX_GET_LENGTH:
1211             pi64 = (int64_t*)va_arg( args, int64_t * );
1212             if( p_sys->i_npt_length > 0 )
1213             {
1214                 *pi64 = p_sys->i_npt_length * 1000000.0;
1215                 return VLC_SUCCESS;
1216             }
1217             return VLC_EGENERIC;
1218
1219         case DEMUX_GET_POSITION:
1220             pf = (double*)va_arg( args, double* );
1221             if( p_sys->i_npt_length > 0 && p_sys->i_npt > 0)
1222             {
1223                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1224                 return VLC_SUCCESS;
1225             }
1226             return VLC_EGENERIC;
1227
1228         case DEMUX_SET_POSITION:
1229         case DEMUX_SET_TIME:
1230             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1231             {
1232                 int i;
1233                 float time;
1234
1235                 if( i_query == DEMUX_SET_TIME && p_sys->i_npt > 0 )
1236                 {
1237                     i64 = (int64_t)va_arg( args, int64_t );
1238                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1239                 }
1240                 else if( i_query == DEMUX_SET_TIME )
1241                     return VLC_EGENERIC;
1242                 else
1243                 {
1244                     f = (double)va_arg( args, double );
1245                     time = f * (double)p_sys->i_npt_length;   /* in second */
1246                 }
1247
1248                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1249                 {
1250                     msg_Err( p_demux, "PLAY failed %s",
1251                         p_sys->env->getResultMsg() );
1252                     return VLC_EGENERIC;
1253                 }
1254                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1255                 p_sys->i_pcr = 0;
1256
1257                 /* Retrieve RTP-Info values */
1258                 for( i = 0; i < p_sys->i_track; i++ )
1259                 {
1260                     p_sys->track[i]->b_rtcp_sync = false;
1261                     p_sys->track[i]->i_pts = 0;
1262                 }
1263
1264                 /* Retrieve the starttime if possible */
1265                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1266
1267                 /* Retrieve the duration if possible */
1268                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1269
1270                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1271                 return VLC_SUCCESS;
1272             }
1273             return VLC_EGENERIC;
1274
1275         /* Special for access_demux */
1276         case DEMUX_CAN_PAUSE:
1277         case DEMUX_CAN_SEEK:
1278             pb = (bool*)va_arg( args, bool * );
1279             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1280                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1281                 *pb = true;
1282             else
1283                 *pb = false;
1284             return VLC_SUCCESS;
1285
1286         case DEMUX_CAN_CONTROL_PACE:
1287             pb = (bool*)va_arg( args, bool * );
1288
1289 #if 1       /* Disable for now until we have a clock synchro algo
1290              * which works with something else than MPEG over UDP */
1291             *pb = false;
1292 #else
1293             *pb = true;
1294 #endif
1295             return VLC_SUCCESS;
1296
1297 #if 0
1298         case DEMUX_CAN_CONTROL_RATE:
1299             pb = (bool*)va_arg( args, bool * );
1300             pb2 = (bool*)va_arg( args, bool * );
1301
1302             *pb = p_sys->rtsp != NULL && p_sys->i_npt_length > 0 && !var_GetBool( p_demux, "rtsp-kasenna" );
1303             *pb2 = false;
1304             return VLC_SUCCESS;
1305
1306         case DEMUX_SET_RATE:
1307         {
1308             double f_scale;
1309
1310             if( !p_sys->rtsp || p_sys->i_npt_length <= 0 || var_GetBool( p_demux, "rtsp-kasenna" ) )
1311                 return VLC_EGENERIC;
1312
1313             /* TODO we might want to ensure that the new rate is different from
1314              * old rate after playMediaSession...
1315              * I have no idea how the server map the requested rate to the
1316              * ones it supports.
1317              * ex:
1318              *  current is x2 we request x1.5 if the server return x2 we will
1319              *  never succeed to return to x1.
1320              *  In this case we should retry with a lower rate until we have
1321              *  one (even x1).
1322              */
1323
1324             pi_int = (int*)va_arg( args, int * );
1325             f_scale = (double)INPUT_RATE_DEFAULT / (*p_int);
1326
1327             /* Passing -1 for the start and end time will mean liveMedia won't
1328             * create a Range: section for the RTSP message. The server should
1329             * pick up from the current position */
1330             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1331             {
1332                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1333                         p_sys->env->getResultMsg() );
1334                 return VLC_EGENERIC;
1335             }
1336             /* ReSync the stream */
1337             p_sys->i_npt_start = 0;
1338             p_sys->i_pcr = 0;
1339             p_sys->i_npt = 0.;
1340             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1341
1342             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() + 0.5 );
1343             return VLC_SUCCESS;
1344         }
1345 #endif
1346
1347         case DEMUX_SET_PAUSE_STATE:
1348         {
1349             int i;
1350
1351             b_bool = (bool)va_arg( args, int );
1352             if( p_sys->rtsp == NULL )
1353                 return VLC_EGENERIC;
1354
1355             /* FIXME */
1356             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1357                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1358                        -1 ) ) )
1359             {
1360                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1361                     return VLC_EGENERIC;
1362             }
1363
1364             /* When we Pause, we'll need the TimeoutPrevention thread to
1365              * handle sending the "Keep Alive" message to the server.
1366              * Unfortunately Live555 isn't thread safe and so can't
1367              * do this normally while the main Demux thread is handling
1368              * a live stream. We end up with the Timeout thread blocking
1369              * waiting for a response from the server. So when we PAUSE
1370              * we set a flag that the TimeoutPrevention function will check
1371              * and if it's set, it will trigger the GET_PARAMETER message */
1372             if( b_bool && p_sys->p_timeout != NULL )
1373                 p_sys->p_timeout->b_handle_keep_alive = true;
1374             else if( !b_bool && p_sys->p_timeout != NULL )
1375                 p_sys->p_timeout->b_handle_keep_alive = false;
1376
1377             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1378             {
1379                 live_track_t *tk = p_sys->track[i];
1380                 tk->b_rtcp_sync = false;
1381                 tk->i_pts = 0;
1382                 p_sys->i_pcr = 0;
1383                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1384             }
1385
1386             /* Retrieve the starttime if possible */
1387             p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1388
1389             /* Retrieve the duration if possible */
1390             p_sys->i_npt_length = p_sys->ms->playEndTime();
1391
1392             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1393             return VLC_SUCCESS;
1394         }
1395         case DEMUX_GET_TITLE_INFO:
1396         case DEMUX_SET_TITLE:
1397         case DEMUX_SET_SEEKPOINT:
1398             return VLC_EGENERIC;
1399
1400         case DEMUX_GET_PTS_DELAY:
1401             pi64 = (int64_t*)va_arg( args, int64_t * );
1402             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1403             return VLC_SUCCESS;
1404
1405         default:
1406             return VLC_EGENERIC;
1407     }
1408 }
1409
1410 /*****************************************************************************
1411  * RollOverTcp: reopen the rtsp into TCP mode
1412  * XXX: ugly, a lot of code are duplicated from Open()
1413  * This should REALLY be fixed
1414  *****************************************************************************/
1415 static int RollOverTcp( demux_t *p_demux )
1416 {
1417     demux_sys_t *p_sys = p_demux->p_sys;
1418     int i, i_return;
1419
1420     var_SetBool( p_demux, "rtsp-tcp", true );
1421
1422     /* We close the old RTSP session */
1423     for( i = 0; i < p_sys->i_track; i++ )
1424     {
1425         live_track_t *tk = p_sys->track[i];
1426
1427         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1428         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1429         es_format_Clean( &tk->fmt );
1430         free( tk->p_buffer );
1431         free( tk );
1432     }
1433     if( p_sys->i_track ) free( p_sys->track );
1434     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1435
1436     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1437     Medium::close( p_sys->ms );
1438     RTSPClient::close( p_sys->rtsp );
1439
1440     p_sys->ms = NULL;
1441     p_sys->rtsp = NULL;
1442     p_sys->track = NULL;
1443     p_sys->i_track = 0;
1444
1445     /* Reopen rtsp client */
1446     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1447     {
1448         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1449                  p_sys->psz_path );
1450         goto error;
1451     }
1452
1453     if( p_sys->p_sdp == NULL )
1454     {
1455         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1456         goto error;
1457     }
1458
1459     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1460     {
1461         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1462         goto error;
1463     }
1464
1465     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1466         goto error;
1467
1468     return VLC_SUCCESS;
1469
1470 error:
1471     return VLC_EGENERIC;
1472 }
1473
1474
1475 /*****************************************************************************
1476  *
1477  *****************************************************************************/
1478 static void StreamRead( void *p_private, unsigned int i_size,
1479                         unsigned int i_truncated_bytes, struct timeval pts,
1480                         unsigned int duration )
1481 {
1482     live_track_t   *tk = (live_track_t*)p_private;
1483     demux_t        *p_demux = tk->p_demux;
1484     demux_sys_t    *p_sys = p_demux->p_sys;
1485     block_t        *p_block;
1486
1487     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1488
1489     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1490         (int64_t)pts.tv_usec;
1491
1492     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1493     i_pts &= INT64_C(0x00ffffffffffffff);
1494
1495     /* Retrieve NPT for this pts */
1496     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1497
1498     if( tk->b_quicktime && tk->p_es == NULL )
1499     {
1500         QuickTimeGenericRTPSource *qtRTPSource =
1501             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1502         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1503         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1504
1505         if( tk->fmt.i_cat == VIDEO_ES ) {
1506             if( qtState.sdAtomSize < 16 + 32 )
1507             {
1508                 /* invalid */
1509                 p_sys->event = 0xff;
1510                 tk->waiting = 0;
1511                 return;
1512             }
1513             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1514             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1515             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1516
1517             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1518             {
1519                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1520                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1521                                   + qtRTPSource->qtState.sdAtomSize;
1522                 while (pos+8 < endpos) {
1523                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1524                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1525                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1526                         atomLength > 8 &&
1527                         atomLength <= INT_MAX )
1528                     {
1529                         tk->fmt.i_extra = atomLength-8;
1530                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1531                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1532                         break;
1533                     }
1534                     pos += atomLength;
1535                 }
1536             }
1537             else
1538             {
1539                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1540                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1541                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1542             }
1543         }
1544         else {
1545             if( qtState.sdAtomSize < 4 )
1546             {
1547                 /* invalid */
1548                 p_sys->event = 0xff;
1549                 tk->waiting = 0;
1550                 return;
1551             }
1552             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1553         }
1554         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1555     }
1556
1557 #if 0
1558     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1559              i_size,
1560              pts.tv_sec * 1000000LL + pts.tv_usec );
1561 #endif
1562
1563     /* grow buffer if it looks like buffer is too small, but don't eat
1564      * up all the memory on strange streams */
1565     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1566     {
1567         void *p_tmp;
1568         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1569         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1570         tk->i_buffer *= 2;
1571         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1572         if( p_tmp == NULL )
1573         {
1574             msg_Warn( p_demux, "realloc failed" );
1575         }
1576         else
1577         {
1578             tk->p_buffer = (uint8_t*)p_tmp;
1579         }
1580     }
1581     if( i_size > tk->i_buffer )
1582     {
1583         msg_Warn( p_demux, "buffer overflow" );
1584     }
1585     /* FIXME could i_size be > buffer size ? */
1586     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1587         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1588     {
1589         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1590
1591         p_block = block_New( p_demux, i_size + 1 );
1592         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1593         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1594     }
1595     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1596     {
1597         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1598         uint32_t header = h261Source->lastSpecialHeader();
1599         p_block = block_New( p_demux, i_size + 4 );
1600         memcpy( p_block->p_buffer, &header, 4 );
1601         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1602
1603         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1604             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1605     }
1606     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1607     {
1608         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1609             msg_Warn( p_demux, "unsupported NAL type for H264" );
1610
1611         /* Normal NAL type */
1612         p_block = block_New( p_demux, i_size + 4 );
1613         p_block->p_buffer[0] = 0x00;
1614         p_block->p_buffer[1] = 0x00;
1615         p_block->p_buffer[2] = 0x00;
1616         p_block->p_buffer[3] = 0x01;
1617         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1618     }
1619     else if( tk->b_asf )
1620     {
1621         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1622         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1623
1624         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1625     }
1626     else
1627     {
1628         p_block = block_New( p_demux, i_size );
1629         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1630     }
1631
1632     if( p_sys->i_pcr < i_pts )
1633     {
1634         p_sys->i_pcr = i_pts;
1635     }
1636
1637     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1638     {
1639         p_block->i_pts = i_pts;
1640     }
1641
1642     /* Update our global npt value */
1643     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1644         p_sys->i_npt = tk->i_npt;
1645
1646     if( !tk->b_muxed )
1647     {
1648         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1649         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1650     }
1651
1652     if( tk->b_muxed )
1653     {
1654         stream_DemuxSend( tk->p_out_muxed, p_block );
1655     }
1656     else if( tk->b_asf )
1657     {
1658         stream_DemuxSend( p_sys->p_out_asf, p_block );
1659     }
1660     else
1661     {
1662         es_out_Send( p_demux->out, tk->p_es, p_block );
1663     }
1664
1665     /* warn that's ok */
1666     p_sys->event = 0xff;
1667
1668     /* we have read data */
1669     tk->waiting = 0;
1670     p_demux->p_sys->b_no_data = false;
1671     p_demux->p_sys->i_no_data_ti = 0;
1672
1673     if( i_pts > 0 && !tk->b_muxed )
1674     {
1675         tk->i_pts = i_pts;
1676     }
1677 }
1678
1679 /*****************************************************************************
1680  *
1681  *****************************************************************************/
1682 static void StreamClose( void *p_private )
1683 {
1684     live_track_t   *tk = (live_track_t*)p_private;
1685     demux_t        *p_demux = tk->p_demux;
1686     demux_sys_t    *p_sys = p_demux->p_sys;
1687
1688     msg_Dbg( p_demux, "StreamClose" );
1689
1690     p_sys->event = 0xff;
1691     p_demux->b_error = true;
1692 }
1693
1694
1695 /*****************************************************************************
1696  *
1697  *****************************************************************************/
1698 static void TaskInterrupt( void *p_private )
1699 {
1700     demux_t *p_demux = (demux_t*)p_private;
1701
1702     p_demux->p_sys->i_no_data_ti++;
1703
1704     /* Avoid lock */
1705     p_demux->p_sys->event = 0xff;
1706 }
1707
1708 /*****************************************************************************
1709  *
1710  *****************************************************************************/
1711 static void* TimeoutPrevention( void *p_data )
1712 {
1713     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1714
1715     for( ;; )
1716     {
1717         /* Voodoo (= no) thread safety here! *Ahem* */
1718         if( p_timeout->b_handle_keep_alive )
1719         {
1720             char *psz_bye = NULL;
1721             int canc = vlc_savecancel ();
1722
1723             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1724             vlc_restorecancel (canc);
1725         }
1726         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1727
1728         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1729     }
1730     assert(0); /* dead code */
1731 }
1732
1733 /*****************************************************************************
1734  *
1735  *****************************************************************************/
1736 static int b64_decode( char *dest, char *src );
1737
1738 static int ParseASF( demux_t *p_demux )
1739 {
1740     demux_sys_t    *p_sys = p_demux->p_sys;
1741
1742     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1743     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1744     char *psz_end;
1745     block_t *p_header;
1746
1747     /* Parse the asf header */
1748     if( psz_asf == NULL )
1749         return VLC_EGENERIC;
1750
1751     psz_asf += strlen( psz_marker );
1752     psz_asf = strdup( psz_asf );    /* Duplicate it */
1753     psz_end = strchr( psz_asf, '\n' );
1754
1755     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1756         *psz_end-- = '\0';
1757
1758     if( psz_asf >= psz_end )
1759     {
1760         free( psz_asf );
1761         return VLC_EGENERIC;
1762     }
1763
1764     /* Always smaller */
1765     p_header = block_New( p_demux, psz_end - psz_asf );
1766     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1767     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1768     if( p_header->i_buffer <= 0 )
1769     {
1770         free( psz_asf );
1771         return VLC_EGENERIC;
1772     }
1773
1774     /* Parse it to get packet size */
1775     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1776
1777     /* Send it to demuxer */
1778     stream_DemuxSend( p_sys->p_out_asf, p_header );
1779
1780     free( psz_asf );
1781     return VLC_SUCCESS;
1782 }
1783
1784
1785 static unsigned char* parseH264ConfigStr( char const* configStr,
1786                                           unsigned int& configSize )
1787 {
1788     char *dup, *psz;
1789     int i, i_records = 1;
1790
1791     if( configSize )
1792     configSize = 0;
1793
1794     if( configStr == NULL || *configStr == '\0' )
1795         return NULL;
1796
1797     psz = dup = strdup( configStr );
1798
1799     /* Count the number of comma's */
1800     for( psz = dup; *psz != '\0'; ++psz )
1801     {
1802         if( *psz == ',')
1803         {
1804             ++i_records;
1805             *psz = '\0';
1806         }
1807     }
1808
1809     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1810     psz = dup;
1811     for( i = 0; i < i_records; i++ )
1812     {
1813         cfg[configSize++] = 0x00;
1814         cfg[configSize++] = 0x00;
1815         cfg[configSize++] = 0x00;
1816         cfg[configSize++] = 0x01;
1817
1818         configSize += b64_decode( (char*)&cfg[configSize], psz );
1819         psz += strlen(psz)+1;
1820     }
1821
1822     free( dup );
1823     return cfg;
1824 }
1825
1826 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1827 static int b64_decode( char *dest, char *src )
1828 {
1829     const char *dest_start = dest;
1830     int  i_level;
1831     int  last = 0;
1832     int  b64[256] = {
1833         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1834         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1835         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1836         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1837         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1838         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1839         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1840         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1841         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1842         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1843         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1844         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1845         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1846         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1847         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1848         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1849         };
1850
1851     for( i_level = 0; *src != '\0'; src++ )
1852     {
1853         int  c;
1854
1855         c = b64[(unsigned int)*src];
1856         if( c == -1 )
1857         {
1858             continue;
1859         }
1860
1861         switch( i_level )
1862         {
1863             case 0:
1864                 i_level++;
1865                 break;
1866             case 1:
1867                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1868                 i_level++;
1869                 break;
1870             case 2:
1871                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1872                 i_level++;
1873                 break;
1874             case 3:
1875                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1876                 i_level = 0;
1877         }
1878         last = c;
1879     }
1880
1881     *dest = '\0';
1882
1883     return dest - dest_start;
1884 }