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 #include <vlc/vlc.h>
  31
  32 #include <vlc_demux.h>
  33 #include <vlc_interface.h>
  34 #include <vlc_network.h>
  35 #include <vlc_url.h>
  36
  37 #include <iostream>
  38
  39 #if defined( WIN32 )
  40 #   include <winsock2.h>
  41 #endif
  42
  43 #include "UsageEnvironment.hh"
  44 #include "BasicUsageEnvironment.hh"
  45 #include "GroupsockHelper.hh"
  46 #include "liveMedia.hh"
  47
  48 extern "C" {
  49 #include "../access/mms/asf.h"  /* Who said ugly ? */
  50 }
  51
  52 using namespace std;
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 static int  Open ( vlc_object_t * );
  58 static void Close( vlc_object_t * );
  59
  60 #define CACHING_TEXT N_("Caching value (ms)")
  61 #define CACHING_LONGTEXT N_( \
  62     "Allows you to modify the default caching value for RTSP streams. This " \
  63     "value should be set in millisecond units." )
  64
  65 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  66 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  67     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  68     "for communication. In this mode you cannot connect to normal RTSP servers." )
  69
  70 #define USER_TEXT N_("RTSP user name")
  71 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  72     "be used for authenticating the connection.")
  73 #define PASS_TEXT N_("RTSP password")
  74 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  75     "used for the connection.")
  76
  77 vlc_module_begin();
  78     set_description( _("RTP/RTSP/SDP demuxer (using Live555)" ) );
  79     set_capability( "demux2", 50 );
  80     set_shortname( "RTP/RTSP");
  81     set_callbacks( Open, Close );
  82     add_shortcut( "live" );
  83     add_shortcut( "livedotcom" );
  84     set_category( CAT_INPUT );
  85     set_subcategory( SUBCAT_INPUT_DEMUX );
  86
  87     add_submodule();
  88         set_description( _("RTSP/RTP access and demux") );
  89         add_shortcut( "rtsp" );
  90         add_shortcut( "sdp" );
  91         set_capability( "access_demux", 0 );
  92         set_callbacks( Open, Close );
  93         add_bool( "rtsp-tcp", 0, NULL,
  94                   N_("Use RTP over RTSP (TCP)"),
  95                   N_("Use RTP over RTSP (TCP)"), VLC_TRUE );
  96         add_integer( "rtp-client-port", -1, NULL,
  97                   N_("Client port"),
  98                   N_("Port to use for the RTP source of the session"), VLC_TRUE );
  99         add_bool( "rtsp-http", 0, NULL,
 100                   N_("Tunnel RTSP and RTP over HTTP"),
 101                   N_("Tunnel RTSP and RTP over HTTP"), VLC_TRUE );
 102         add_integer( "rtsp-http-port", 80, NULL,
 103                   N_("HTTP tunnel port"),
 104                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 105                   VLC_TRUE );
 106         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 107                     CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
 108         add_bool(   "rtsp-kasenna", VLC_FALSE, NULL, KASENNA_TEXT,
 109                     KASENNA_LONGTEXT, VLC_TRUE );
 110         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 111                     USER_LONGTEXT, VLC_TRUE );
 112         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 113                     PASS_LONGTEXT, VLC_TRUE );
 114 vlc_module_end();
 115
 116
 117 /*****************************************************************************
 118  * Local prototypes
 119  *****************************************************************************/
 120
 121 typedef struct
 122 {
 123     demux_t         *p_demux;
 124     MediaSubsession *sub;
 125
 126     es_format_t     fmt;
 127     es_out_id_t     *p_es;
 128
 129     vlc_bool_t      b_muxed;
 130     vlc_bool_t      b_quicktime;
 131     vlc_bool_t      b_asf;
 132     stream_t        *p_out_muxed;    /* for muxed stream */
 133
 134     uint8_t         *p_buffer;
 135     unsigned int    i_buffer;
 136
 137     vlc_bool_t      b_rtcp_sync;
 138     char            waiting;
 139     int64_t         i_pts;
 140     u_int32_t       i_start_seq;
 141
 142 } live_track_t;
 143
 144 struct timeout_thread_t
 145 {
 146     VLC_COMMON_MEMBERS
 147
 148     int64_t      i_remain;
 149     demux_sys_t  *p_sys;
 150 };
 151
 152 struct demux_sys_t
 153 {
 154     char            *p_sdp;    /* XXX mallocated */
 155     char            *psz_path; /* URL-encoded path */
 156     vlc_url_t       url;
 157
 158     MediaSession     *ms;
 159     TaskScheduler    *scheduler;
 160     UsageEnvironment *env ;
 161     RTSPClient       *rtsp;
 162
 163     /* */
 164     int              i_track;
 165     live_track_t     **track;   /* XXX mallocated */
 166
 167     /* Weird formats */
 168     asf_header_t     asfh;
 169     stream_t         *p_out_asf;
 170     vlc_bool_t       b_real;
 171
 172     /* */
 173     int64_t          i_pcr; /* The clock */
 174     int64_t          i_npt; /* The current time in the stream */
 175     int64_t          i_npt_length;
 176     int64_t          i_npt_start;
 177
 178     /* timeout thread information */
 179     int              i_timeout;     /* session timeout value in seconds */
 180     vlc_bool_t       b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 181     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 182
 183     /* */
 184     vlc_bool_t       b_multicast;   /* true if one of the tracks is multicasted */
 185     vlc_bool_t       b_no_data;     /* true if we never receive any data */
 186     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 187
 188     char             event;
 189 };
 190
 191 static int Demux  ( demux_t * );
 192 static int Control( demux_t *, int, va_list );
 193
 194 static int Connect      ( demux_t * );
 195 static int SessionsSetup( demux_t * );
 196 static int Play         ( demux_t *);
 197 static int ParseASF     ( demux_t * );
 198 static int RollOverTcp  ( demux_t * );
 199
 200 static void StreamRead  ( void *, unsigned int, unsigned int,
 201                           struct timeval, unsigned int );
 202 static void StreamClose ( void * );
 203 static void TaskInterrupt( void * );
 204
 205 static void TimeoutPrevention( timeout_thread_t * );
 206
 207 static unsigned char* parseH264ConfigStr( char const* configStr,
 208                                           unsigned int& configSize );
 209
 210 /*****************************************************************************
 211  * DemuxOpen:
 212  *****************************************************************************/
 213 static int  Open ( vlc_object_t *p_this )
 214 {
 215     demux_t     *p_demux = (demux_t*)p_this;
 216     demux_sys_t *p_sys = NULL;
 217
 218     MediaSubsessionIterator *iter   = NULL;
 219     MediaSubsession         *sub    = NULL;
 220     int i, i_return;
 221
 222     if( p_demux->s )
 223     {
 224         /* See if it looks like a SDP
 225            v, o, s fields are mandatory and in this order */
 226         const uint8_t *p_peek;
 227         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 228
 229         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 230             memcmp( p_peek, "v=0\n", 4 ) &&
 231             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 232         {
 233             return VLC_EGENERIC;
 234         }
 235     }
 236     else
 237     {
 238         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 239     }
 240
 241     p_demux->pf_demux  = Demux;
 242     p_demux->pf_control= Control;
 243     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 244     if( !p_sys ) return VLC_ENOMEM;
 245
 246     p_sys->p_sdp = NULL;
 247     p_sys->scheduler = NULL;
 248     p_sys->env = NULL;
 249     p_sys->ms = NULL;
 250     p_sys->rtsp = NULL;
 251     p_sys->i_track = 0;
 252     p_sys->track   = NULL;
 253     p_sys->i_pcr = 0;
 254     p_sys->i_npt = 0;
 255     p_sys->i_npt_start = 0;
 256     p_sys->i_npt_length = 0;
 257     p_sys->p_out_asf = NULL;
 258     p_sys->b_no_data = VLC_TRUE;
 259     p_sys->i_no_data_ti = 0;
 260     p_sys->p_timeout = NULL;
 261     p_sys->i_timeout = 0;
 262     p_sys->b_timeout_call = VLC_FALSE;
 263     p_sys->b_multicast = VLC_FALSE;
 264     p_sys->b_real = VLC_FALSE;
 265     p_sys->psz_path = strdup( p_demux->psz_path );
 266
 267     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 268     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 269
 270     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 271     {
 272         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 273         goto error;
 274     }
 275     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 276     {
 277         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 278         goto error;
 279     }
 280
 281     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 282     {
 283         char *p = p_sys->psz_path;
 284         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 285     }
 286
 287     if( p_demux->s != NULL )
 288     {
 289         /* Gather the complete sdp file */
 290         int     i_sdp       = 0;
 291         int     i_sdp_max   = 1000;
 292         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 293
 294         for( ;; )
 295         {
 296             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 297                                       i_sdp_max - i_sdp - 1 );
 298
 299             if( i_read < 0 )
 300             {
 301                 msg_Err( p_demux, "failed to read SDP" );
 302                 free( p_sys );
 303                 return VLC_EGENERIC;
 304             }
 305
 306             i_sdp += i_read;
 307
 308             if( i_read < i_sdp_max - i_sdp - 1 )
 309             {
 310                 p_sdp[i_sdp] = '\0';
 311                 break;
 312             }
 313
 314             i_sdp_max += 1000;
 315             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 316         }
 317         p_sys->p_sdp = (char*)p_sdp;
 318     }
 319     else if( ( p_demux->s == NULL ) &&
 320              !strcasecmp( p_demux->psz_access, "sdp" ) )
 321     {
 322         /* sdp:// link from SAP */
 323         p_sys->p_sdp = strdup( p_sys->psz_path );
 324     }
 325     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 326     {
 327         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 328         goto error;
 329     }
 330
 331     if( p_sys->p_sdp == NULL )
 332     {
 333         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 334         goto error;
 335     }
 336
 337     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 338     {
 339         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 340         goto error;
 341     }
 342
 343     if( p_sys->b_real ) goto error;
 344
 345     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 346         goto error;
 347
 348     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 349     {
 350         msg_Err( p_demux, "cannot find a usable asf header" );
 351         /* TODO Clean tracks */
 352         goto error;
 353     }
 354
 355     if( p_sys->i_track <= 0 )
 356         goto error;
 357
 358     return VLC_SUCCESS;
 359
 360 error:
 361     for( i = 0; i < p_sys->i_track; i++ )
 362     {
 363         live_track_t *tk = p_sys->track[i];
 364
 365         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 366         free( tk->p_buffer );
 367         free( tk );
 368     }
 369
 370     if( p_sys->i_track ) free( p_sys->track );
 371     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 372     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 373     if( p_sys->ms ) Medium::close( p_sys->ms );
 374     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 375     if( p_sys->env ) p_sys->env->reclaim();
 376     if( p_sys->p_timeout )
 377     {
 378         vlc_object_kill( p_sys->p_timeout );
 379         vlc_thread_join( p_sys->p_timeout );
 380         vlc_object_detach( p_sys->p_timeout );
 381         vlc_object_destroy( p_sys->p_timeout );
 382     }
 383     if( p_sys->scheduler ) delete p_sys->scheduler;
 384     if( p_sys->p_sdp ) free( p_sys->p_sdp );
 385     if( p_sys->psz_path ) free( p_sys->psz_path );
 386
 387     vlc_UrlClean( &p_sys->url );
 388
 389     free( p_sys );
 390     return VLC_EGENERIC;
 391 }
 392
 393 /*****************************************************************************
 394  * DemuxClose:
 395  *****************************************************************************/
 396 static void Close( vlc_object_t *p_this )
 397 {
 398     demux_t *p_demux = (demux_t*)p_this;
 399     demux_sys_t *p_sys = p_demux->p_sys;
 400     int i;
 401
 402     for( i = 0; i < p_sys->i_track; i++ )
 403     {
 404         live_track_t *tk = p_sys->track[i];
 405
 406         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 407         free( tk->p_buffer );
 408         free( tk );
 409     }
 410
 411     if( p_sys->i_track ) free( p_sys->track );
 412     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 413     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 414     if( p_sys->ms ) Medium::close( p_sys->ms );
 415     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 416     if( p_sys->env ) p_sys->env->reclaim();
 417     if( p_sys->p_timeout )
 418     {
 419         vlc_object_kill( p_sys->p_timeout );
 420         vlc_thread_join( p_sys->p_timeout );
 421         vlc_object_detach( p_sys->p_timeout );
 422         vlc_object_destroy( p_sys->p_timeout );
 423     }
 424     if( p_sys->scheduler ) delete p_sys->scheduler;
 425     if( p_sys->p_sdp ) free( p_sys->p_sdp );
 426     if( p_sys->psz_path ) free( p_sys->psz_path );
 427
 428     vlc_UrlClean( &p_sys->url );
 429
 430     free( p_sys );
 431 }
 432
 433 /*****************************************************************************
 434  * Connect: connects to the RTSP server to setup the session DESCRIBE
 435  *****************************************************************************/
 436 static int Connect( demux_t *p_demux )
 437 {
 438     demux_sys_t *p_sys = p_demux->p_sys;
 439     Authenticator authenticator;
 440
 441     char *psz_user    = NULL;
 442     char *psz_pwd     = NULL;
 443     char *psz_url     = NULL;
 444     char *psz_options = NULL;
 445     char *p_sdp       = NULL;
 446     int  i_http_port  = 0;
 447     int  i_ret        = VLC_SUCCESS;
 448
 449 createnew:
 450     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 451         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 452
 453     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 454           p_demux->p_libvlc->i_verbose > 1,
 455           "VLC media player", i_http_port ) ) == NULL )
 456     {
 457         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 458                  p_sys->env->getResultMsg() );
 459         return VLC_EGENERIC;
 460     }
 461
 462     psz_url = (char*)malloc( strlen( p_sys->psz_path ) + 8 );
 463     if( !psz_url ) return VLC_ENOMEM;
 464
 465     if( p_sys->url.psz_username || p_sys->url.psz_password )
 466     {
 467         sprintf( psz_url, "rtsp://%s%s", p_sys->url.psz_host,
 468                  p_sys->url.psz_path );
 469
 470         psz_user = strdup( p_sys->url.psz_username );
 471         psz_pwd  = strdup( p_sys->url.psz_password );
 472     }
 473     else
 474     {
 475         sprintf( psz_url, "rtsp://%s", p_sys->psz_path );
 476
 477         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 478         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 479     }
 480
 481 describe:
 482     authenticator.setUsernameAndPassword( (const char*)psz_user,
 483                                           (const char*)psz_pwd );
 484
 485     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 486                                                &authenticator );
 487     if( psz_options ) delete [] psz_options;
 488
 489     p_sdp = p_sys->rtsp->describeURL( psz_url,
 490                 &authenticator, var_CreateGetBool( p_demux, "rtsp-kasenna" ) );
 491
 492     if( psz_user ) free( psz_user );
 493     if( psz_pwd ) free( psz_pwd );
 494
 495     if( p_sdp == NULL )
 496     {
 497         /* failure occurred */
 498         int i_code = 0;
 499         const char *psz_error = p_sys->env->getResultMsg();
 500
 501         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 502         if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 503             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s", &i_code );
 504         else sscanf( psz_error, "%*sRTSP/%*s%3u", &i_code );
 505
 506         if( i_code == 401 )
 507         {
 508             char *psz_login = NULL; char *psz_password = NULL;
 509             msg_Dbg( p_demux, "authentication failed" );
 510
 511             i_ret = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 512                            _("Please enter a valid login name and a password."),
 513                                                    &psz_login, &psz_password );
 514             if( i_ret == DIALOG_OK_YES )
 515             {
 516                msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 517                            psz_login, psz_password );
 518                if( psz_url ) free( psz_url );
 519                if( psz_login ) psz_user = psz_login;
 520                if( psz_password ) psz_pwd = psz_password;
 521                goto describe;
 522             }
 523             if( psz_login ) free( psz_login );
 524             if( psz_password ) free( psz_password );
 525         }
 526         else if( !var_GetBool( p_demux, "rtsp-http" ) )
 527         {
 528             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 529             vlc_value_t val;
 530             val.b_bool = VLC_TRUE;
 531             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 532             var_Set( p_demux, "rtsp-http", val );
 533             if( psz_url ) free( psz_url );
 534             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 535             goto createnew;
 536         }
 537         i_ret = VLC_EGENERIC;
 538     }
 539     if( psz_url ) free( psz_url );
 540
 541     /* malloc-ated copy */
 542     if( p_sys->p_sdp ) free( p_sys->p_sdp );
 543     p_sys->p_sdp = NULL;
 544     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 545     delete[] p_sdp;
 546
 547     return i_ret;
 548 }
 549
 550 /*****************************************************************************
 551  * SessionsSetup: prepares the subsessions and does the SETUP
 552  *****************************************************************************/
 553 static int SessionsSetup( demux_t *p_demux )
 554 {
 555     demux_sys_t             *p_sys  = p_demux->p_sys;
 556     MediaSubsessionIterator *iter   = NULL;
 557     MediaSubsession         *sub    = NULL;
 558
 559     vlc_bool_t     b_rtsp_tcp = VLC_FALSE;
 560     int            i_client_port;
 561     int            i_return = VLC_SUCCESS;
 562     unsigned int   i_buffer = 0;
 563     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 564
 565     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 566                     var_GetBool( p_demux, "rtsp-http" );
 567     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 568
 569     /* Create the session from the SDP */
 570     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 571     {
 572         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 573             p_sys->env->getResultMsg() );
 574         return VLC_EGENERIC;
 575     }
 576
 577     /* Initialise each media subsession */
 578     iter = new MediaSubsessionIterator( *p_sys->ms );
 579     while( ( sub = iter->next() ) != NULL )
 580     {
 581         Boolean bInit;
 582         live_track_t *tk;
 583
 584         /* Value taken from mplayer */
 585         if( !strcmp( sub->mediumName(), "audio" ) )
 586             i_buffer = 100000;
 587         else if( !strcmp( sub->mediumName(), "video" ) )
 588             i_buffer = 2000000;
 589         else continue;
 590
 591         if( i_client_port != -1 )
 592         {
 593             sub->setClientPortNum( i_client_port );
 594             i_client_port += 2;
 595         }
 596
 597         if( strcasestr( sub->codecName(), "REAL" ) )
 598         {
 599             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 600             p_sys->b_real = VLC_TRUE; /* This is a problem, we'll handle it later */
 601             continue;
 602         }
 603
 604         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 605             bInit = sub->initiate( 4 ); /* Constant ? */
 606         else
 607             bInit = sub->initiate();
 608
 609         if( !bInit )
 610         {
 611             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 612                       sub->mediumName(), sub->codecName(),
 613                       p_sys->env->getResultMsg() );
 614         }
 615         else
 616         {
 617             if( sub->rtpSource() != NULL )
 618             {
 619                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 620
 621                 /* Increase the buffer size */
 622                 if( i_buffer > 0 )
 623                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 624
 625                 /* Increase the RTP reorder timebuffer just a bit */
 626                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 627             }
 628             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 629                      sub->codecName() );
 630
 631             /* Issue the SETUP */
 632             if( p_sys->rtsp )
 633             {
 634                 if( !( p_sys->rtsp->setupMediaSubsession( *sub, False,
 635                                                    b_rtsp_tcp ? True : False ) ) )
 636                 {
 637                     /* if we get an unsupported transport error, toggle TCP use and try again */
 638                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 639                      || !( p_sys->rtsp->setupMediaSubsession( *sub, False,
 640                                                    b_rtsp_tcp ? False : True ) ) )
 641                     {
 642                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 643                                  sub->codecName(), p_sys->env->getResultMsg() );
 644                         continue;
 645                     }
 646                 }
 647             }
 648
 649             /* Check if we will receive data from this subsession for this track */
 650             if( sub->readSource() == NULL ) continue;
 651             if( !p_sys->b_multicast )
 652             {
 653                 /* Check, because we need diff. rollover behaviour for multicast */
 654                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 655             }
 656
 657             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 658             tk->p_demux     = p_demux;
 659             tk->sub         = sub;
 660             tk->p_es        = NULL;
 661             tk->b_quicktime = VLC_FALSE;
 662             tk->b_asf       = VLC_FALSE;
 663             tk->b_muxed     = VLC_FALSE;
 664             tk->p_out_muxed = NULL;
 665             tk->waiting     = 0;
 666             tk->b_rtcp_sync = VLC_FALSE;
 667             tk->i_pts       = 0;
 668             tk->i_buffer    = 65536;
 669             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 670
 671             /* Value taken from mplayer */
 672             if( !strcmp( sub->mediumName(), "audio" ) )
 673             {
 674                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 675                 tk->fmt.audio.i_channels = sub->numChannels();
 676                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 677
 678                 if( !strcmp( sub->codecName(), "MPA" ) ||
 679                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 680                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 681                 {
 682                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 683                     tk->fmt.audio.i_rate = 0;
 684                 }
 685                 else if( !strcmp( sub->codecName(), "AC3" ) )
 686                 {
 687                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 688                     tk->fmt.audio.i_rate = 0;
 689                 }
 690                 else if( !strcmp( sub->codecName(), "L16" ) )
 691                 {
 692                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 693                     tk->fmt.audio.i_bitspersample = 16;
 694                 }
 695                 else if( !strcmp( sub->codecName(), "L8" ) )
 696                 {
 697                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 698                     tk->fmt.audio.i_bitspersample = 8;
 699                 }
 700                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 701                 {
 702                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 703                 }
 704                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 705                 {
 706                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 707                 }
 708                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 709                 {
 710                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 711                     tk->fmt.audio.i_rate = 8000;
 712                     tk->fmt.audio.i_channels = 1;
 713                     if( !strcmp( sub->codecName()+5, "40" ) )
 714                         tk->fmt.i_bitrate = 40000;
 715                     else if( !strcmp( sub->codecName()+5, "32" ) )
 716                         tk->fmt.i_bitrate = 32000;
 717                     else if( !strcmp( sub->codecName()+5, "24" ) )
 718                         tk->fmt.i_bitrate = 24000;
 719                     else if( !strcmp( sub->codecName()+5, "16" ) )
 720                         tk->fmt.i_bitrate = 16000;
 721                 }
 722                 else if( !strcmp( sub->codecName(), "AMR" ) )
 723                 {
 724                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 725                 }
 726                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 727                 {
 728                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 729                 }
 730                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 731                 {
 732                     unsigned int i_extra;
 733                     uint8_t      *p_extra;
 734
 735                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 736
 737                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 738                                                              i_extra ) ) )
 739                     {
 740                         tk->fmt.i_extra = i_extra;
 741                         tk->fmt.p_extra = malloc( i_extra );
 742                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 743                         delete[] p_extra;
 744                     }
 745                     /* Because the "faad" decoder does not handle the LATM data length field
 746                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 747                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 748                 }
 749                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 750                 {
 751                     unsigned int i_extra;
 752                     uint8_t      *p_extra;
 753
 754                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 755
 756                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 757                                                            i_extra ) ) )
 758                     {
 759                         tk->fmt.i_extra = i_extra;
 760                         tk->fmt.p_extra = malloc( i_extra );
 761                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 762                         delete[] p_extra;
 763                     }
 764                 }
 765                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 766                 {
 767                     tk->b_asf = VLC_TRUE;
 768                     if( p_sys->p_out_asf == NULL )
 769                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 770                                                             p_demux->out );
 771                 }
 772                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 773                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 774                 {
 775                     tk->b_quicktime = VLC_TRUE;
 776                 }
 777                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 778                 {
 779                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 780                     if ( sub->rtpTimestampFrequency() )
 781                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 782                     else
 783                     {
 784                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 785                         tk->fmt.audio.i_rate = 8000;
 786                     }
 787                 }
 788             }
 789             else if( !strcmp( sub->mediumName(), "video" ) )
 790             {
 791                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 792                 if( !strcmp( sub->codecName(), "MPV" ) )
 793                 {
 794                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 795                 }
 796                 else if( !strcmp( sub->codecName(), "H263" ) ||
 797                          !strcmp( sub->codecName(), "H263-1998" ) ||
 798                          !strcmp( sub->codecName(), "H263-2000" ) )
 799                 {
 800                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 801                 }
 802                 else if( !strcmp( sub->codecName(), "H261" ) )
 803                 {
 804                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 805                 }
 806                 else if( !strcmp( sub->codecName(), "H264" ) )
 807                 {
 808                     unsigned int i_extra = 0;
 809                     uint8_t      *p_extra = NULL;
 810
 811                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 812                     tk->fmt.b_packetized = VLC_FALSE;
 813
 814                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 815                                                     i_extra ) ) )
 816                     {
 817                         tk->fmt.i_extra = i_extra;
 818                         tk->fmt.p_extra = malloc( i_extra );
 819                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 820
 821                         delete[] p_extra;
 822                     }
 823                 }
 824                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 825                 {
 826                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 827                 }
 828                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 829                 {
 830                     unsigned int i_extra;
 831                     uint8_t      *p_extra;
 832
 833                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 834
 835                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 836                                                            i_extra ) ) )
 837                     {
 838                         tk->fmt.i_extra = i_extra;
 839                         tk->fmt.p_extra = malloc( i_extra );
 840                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 841                         delete[] p_extra;
 842                     }
 843                 }
 844                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 845                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 846                          !strcmp( sub->codecName(), "X-QDM" ) ||
 847                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 848                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 849                 {
 850                     tk->b_quicktime = VLC_TRUE;
 851                 }
 852                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 853                 {
 854                     tk->b_muxed = VLC_TRUE;
 855                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 856                 }
 857                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 858                          !strcmp( sub->codecName(), "MP1S" ) )
 859                 {
 860                     tk->b_muxed = VLC_TRUE;
 861                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 862                                                        p_demux->out );
 863                 }
 864                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 865                 {
 866                     tk->b_asf = VLC_TRUE;
 867                     if( p_sys->p_out_asf == NULL )
 868                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 869                                                             p_demux->out );;
 870                 }
 871             }
 872
 873             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 874             {
 875                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 876             }
 877
 878             if( sub->rtcpInstance() != NULL )
 879             {
 880                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 881             }
 882
 883             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 884             {
 885                 /* Append */
 886                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 887                 p_sys->track[p_sys->i_track++] = tk;
 888             }
 889             else
 890             {
 891                 /* BUG ??? */
 892                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
 893                 free( tk );
 894             }
 895         }
 896     }
 897     delete iter;
 898     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
 899
 900 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
 901     /* Retrieve the starttime if possible */
 902     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
 903 #else
 904     p_sys->i_npt_start = (int64_t) -1;
 905 #endif
 906     if( p_sys->i_npt_start < 0 )
 907         p_sys->i_npt_start = -1;
 908
 909 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
 910     /* Retrieve the duration if possible */
 911     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
 912 #else
 913     p_sys->i_npt_length = (int64_t) -1;
 914 #endif
 915     if( p_sys->i_npt_length < 0 )
 916         p_sys->i_npt_length = -1;
 917
 918     msg_Dbg( p_demux, "setup start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
 919     return i_return;
 920 }
 921
 922 /*****************************************************************************
 923  * Play: starts the actual playback of the stream
 924  *****************************************************************************/
 925 static int Play( demux_t *p_demux )
 926 {
 927     demux_sys_t *p_sys = p_demux->p_sys;
 928     int i;
 929
 930     if( p_sys->rtsp )
 931     {
 932         /* The PLAY */
 933         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
 934         {
 935             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
 936             return VLC_EGENERIC;
 937         }
 938
 939         /* Retrieve the timeout value and set up a timeout prevention thread */
 940         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
 941         if( p_sys->i_timeout <= 0 )
 942             p_sys->i_timeout = 60; /* default value from RFC2326 */
 943         if( !p_sys->p_timeout )
 944         {
 945             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
 946             p_sys->p_timeout = (timeout_thread_t *)vlc_object_create( p_demux, sizeof(timeout_thread_t) );
 947             p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
 948             if( vlc_thread_create( p_sys->p_timeout, "liveMedia-timeout", TimeoutPrevention,
 949                                    VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
 950             {
 951                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
 952                 vlc_object_destroy( p_sys->p_timeout );
 953             }
 954             msg_Dbg( p_demux, "spawned timeout thread" );
 955             vlc_object_attach( p_sys->p_timeout, p_demux );
 956         }
 957     }
 958     p_sys->i_pcr = 0;
 959
 960 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 1195257600)
 961     /* TODO */
 962     for( i = 0; i < p_sys->i_track; i++ )
 963     {
 964         p_sys->track[i]->i_pts = (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
 965         p_sys->track[i]->i_start_seq = (int)p_sys->track[i]->sub->rtpInfo.seqNum;
 966         msg_Info( p_demux, "set startseq: %u", p_sys->track[i]->i_start_seq );
 967     }
 968 #endif
 969
 970 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
 971     /* Retrieve the starttime if possible */
 972     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
 973 #else
 974     p_sys->i_npt_start = -1;
 975 #endif
 976     if( p_sys->i_npt_start < 0 )
 977     {
 978         p_sys->i_npt_start = -1;
 979         p_sys->i_npt = 0;
 980     }
 981     else
 982         p_sys->i_npt = p_sys->i_npt_start;
 983
 984 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
 985     /* Retrieve the duration if possible */
 986     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
 987 #else
 988     p_sys->i_npt_length = -1;
 989 #endif
 990     if( p_sys->i_npt_length < 0 )
 991         p_sys->i_npt_length = -1;
 992
 993     msg_Dbg( p_demux, "play start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
 994     return VLC_SUCCESS;
 995 }
 996
 997
 998 /*****************************************************************************
 999  * Demux:
1000  *****************************************************************************/
1001 static int Demux( demux_t *p_demux )
1002 {
1003     demux_sys_t    *p_sys = p_demux->p_sys;
1004     TaskToken      task;
1005
1006     vlc_bool_t      b_send_pcr = VLC_TRUE;
1007     int64_t         i_pcr = 0;
1008     int             i;
1009
1010     /* Check if we need to send the server a Keep-A-Live signal */
1011     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1012     {
1013         p_sys->rtsp->setMediaSessionParameter( *p_sys->ms, "vlc" , "1" );
1014         p_sys->b_timeout_call = VLC_FALSE;
1015     }
1016
1017
1018     for( i = 0; i < p_sys->i_track; i++ )
1019     {
1020         live_track_t *tk = p_sys->track[i];
1021
1022         if( tk->b_asf || tk->b_muxed )
1023             b_send_pcr = VLC_FALSE;
1024 #if 0
1025         if( i_pcr == 0 )
1026         {
1027             i_pcr = tk->i_pts;
1028         }
1029         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1030         {
1031             i_pcr = tk->i_pts ;
1032         }
1033 #endif
1034     }
1035     if( p_sys->i_pcr > 0 )
1036     {
1037         if( b_send_pcr )
1038             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1039     }
1040
1041     /* First warn we want to read data */
1042     p_sys->event = 0;
1043     for( i = 0; i < p_sys->i_track; i++ )
1044     {
1045         live_track_t *tk = p_sys->track[i];
1046
1047         if( tk->waiting == 0 )
1048         {
1049             tk->waiting = 1;
1050             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1051                                           StreamRead, tk, StreamClose, tk );
1052         }
1053     }
1054     /* Create a task that will be called if we wait more than 300ms */
1055     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1056
1057     /* Do the read */
1058     p_sys->scheduler->doEventLoop( &p_sys->event );
1059
1060     /* remove the task */
1061     p_sys->scheduler->unscheduleDelayedTask( task );
1062
1063     /* Check for gap in pts value */
1064     for( i = 0; i < p_sys->i_track; i++ )
1065     {
1066         live_track_t *tk = p_sys->track[i];
1067
1068         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1069             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1070         {
1071             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1072
1073             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1074             tk->b_rtcp_sync = VLC_TRUE;
1075             /* reset PCR */
1076             tk->i_pts = 0;
1077             p_sys->i_pcr = 0;
1078             i_pcr = 0;
1079         }
1080     }
1081
1082     if( p_sys->b_multicast && p_sys->b_no_data &&
1083         ( p_sys->i_no_data_ti > 120 ) )
1084     {
1085         /* FIXME Make this configurable
1086         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1087         return 0;
1088         */
1089     }
1090     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1091              ( p_sys->i_no_data_ti > 34 ) )
1092     {
1093         vlc_bool_t b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1094                                 var_GetBool( p_demux, "rtsp-http" );
1095
1096         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1097         {
1098             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1099             if( RollOverTcp( p_demux ) )
1100             {
1101                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1102                 return 0;
1103             }
1104         }
1105         else if( p_sys->i_no_data_ti > 34 )
1106         {
1107             msg_Err( p_demux, "no data received in 10s, aborting" );
1108             return 0;
1109         }
1110     }
1111     else if( !p_sys->b_multicast && p_sys->b_no_data && p_sys->i_no_data_ti > 34 )
1112     {
1113         /* EOF ? */
1114         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1115         return 0;
1116     }
1117     return p_demux->b_error ? 0 : 1;
1118 }
1119
1120 /*****************************************************************************
1121  * Control:
1122  *****************************************************************************/
1123 static int Control( demux_t *p_demux, int i_query, va_list args )
1124 {
1125     demux_sys_t *p_sys = p_demux->p_sys;
1126     int64_t *pi64;
1127     double  *pf, f;
1128     vlc_bool_t *pb, b_bool;
1129
1130     switch( i_query )
1131     {
1132         case DEMUX_GET_TIME:
1133             pi64 = (int64_t*)va_arg( args, int64_t * );
1134             if( p_sys->i_npt > 0 )
1135             {
1136                 *pi64 = p_sys->i_npt;
1137                 return VLC_SUCCESS;
1138             }
1139             return VLC_EGENERIC;
1140
1141         case DEMUX_GET_LENGTH:
1142             pi64 = (int64_t*)va_arg( args, int64_t * );
1143             if( p_sys->i_npt_length > 0 )
1144             {
1145                 *pi64 = p_sys->i_npt_length;
1146                 return VLC_SUCCESS;
1147             }
1148             return VLC_EGENERIC;
1149
1150         case DEMUX_GET_POSITION:
1151             pf = (double*)va_arg( args, double* );
1152             if( p_sys->i_npt_length > 0 && p_sys->i_npt > 0 )
1153             {
1154                 *pf = (double)p_sys->i_npt / (double)p_sys->i_npt_length;
1155                 return VLC_SUCCESS;
1156             }
1157             return VLC_EGENERIC;
1158
1159         case DEMUX_SET_POSITION:
1160         {
1161             float time;
1162
1163             f = (double)va_arg( args, double );
1164             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1165             {
1166                 int i;
1167                 time = f * (double)p_sys->i_npt_length / 1000000.0;   /* in second */
1168                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1169                 {
1170                     msg_Err( p_demux, "PLAY failed %s",
1171                         p_sys->env->getResultMsg() );
1172                     return VLC_EGENERIC;
1173                 }
1174                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1175                 p_sys->i_pcr = 0;
1176 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 1195257600)
1177                 /* Retrieve RTP-Info values */
1178                 for( i = 0; i < p_sys->i_track; i++ )
1179                 {
1180                     p_sys->track[i]->i_pts = (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
1181                     p_sys->track[i]->i_start_seq = p_sys->track[i]->sub->rtpInfo.seqNum;
1182                     msg_Info( p_demux, "set pos startseq: %u", p_sys->track[i]->i_start_seq );
1183                 }
1184 #endif
1185 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
1186                 /* Retrieve the starttime if possible */
1187                 p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1188 #else
1189                 p_sys->i_npt_start = -1;
1190 #endif
1191                 if( p_sys->i_npt_start < 0 )
1192                 {
1193                     p_sys->i_npt_start = -1;
1194                     p_sys->i_npt = 0;
1195                 }
1196                 else
1197                     p_sys->i_npt = p_sys->i_npt_start;
1198
1199 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
1200                 /* Retrieve the duration if possible */
1201                 p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1202 #else
1203                 p_sys->i_npt_length = -1;
1204 #endif
1205                 if( p_sys->i_npt_length < 0 )
1206                     p_sys->i_npt_length = -1;
1207
1208                 msg_Dbg( p_demux, "seek start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1209                 return VLC_SUCCESS;
1210             }
1211             return VLC_EGENERIC;
1212         }
1213         /* Special for access_demux */
1214         case DEMUX_CAN_PAUSE:
1215             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
1216             if( p_sys->rtsp && p_sys->i_npt_length )
1217                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1218                 *pb = VLC_TRUE;
1219             else
1220                 *pb = VLC_FALSE;
1221             return VLC_SUCCESS;
1222
1223         case DEMUX_CAN_CONTROL_PACE:
1224             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
1225
1226 #if 1       /* Disable for now until we have a clock synchro algo
1227              * which works with something else than MPEG over UDP */
1228             *pb = VLC_FALSE;
1229 #else
1230             *pb = VLC_TRUE;
1231 #endif
1232             return VLC_SUCCESS;
1233
1234         case DEMUX_SET_PAUSE_STATE:
1235         {
1236             double d_npt = (double) p_sys->i_npt / I64C(1000000);
1237             int i;
1238
1239             b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t );
1240             if( p_sys->rtsp == NULL )
1241                 return VLC_EGENERIC;
1242
1243             /* FIXME */
1244             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1245                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1246                       d_npt > 0 ? d_npt : -1 ) ) )
1247             {
1248                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1249                     return VLC_EGENERIC;
1250             }
1251             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1252             p_sys->i_pcr = 0;
1253 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 1195257600)
1254             for( i = 0; i < p_sys->i_track; i++ )
1255             {
1256                 p_sys->track[i]->i_pts = (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
1257                 p_sys->track[i]->i_start_seq = p_sys->track[i]->sub->rtpInfo.seqNum;
1258                 msg_Info( p_demux, "set pause startseq: %u", p_sys->track[i]->i_start_seq );
1259             }
1260 #endif
1261 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
1262             /* Retrieve the starttime if possible */
1263             p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1264 #else
1265             p_sys->i_npt_start = -1;
1266 #endif
1267             if( p_sys->i_npt_start < 0 )
1268             {
1269                 p_sys->i_npt_start = -1;
1270                 p_sys->i_npt = 0;
1271             }
1272             else
1273                 p_sys->i_npt = p_sys->i_npt_start;
1274
1275 #if (LIVEMEDIA_LIBRARY_VERSION_INT >= 9999999999)
1276             /* Retrieve the duration if possible */
1277             p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1278 #else
1279             p_sys->i_npt_length = -1;
1280 #endif
1281             if( p_sys->i_npt_length < 0 )
1282                 p_sys->i_npt_length = -1;
1283
1284             msg_Dbg( p_demux, "pause start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1285             return VLC_SUCCESS;
1286         }
1287         case DEMUX_GET_TITLE_INFO:
1288         case DEMUX_SET_TITLE:
1289         case DEMUX_SET_SEEKPOINT:
1290             return VLC_EGENERIC;
1291
1292         case DEMUX_GET_PTS_DELAY:
1293             pi64 = (int64_t*)va_arg( args, int64_t * );
1294             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1295             return VLC_SUCCESS;
1296
1297         default:
1298             return VLC_EGENERIC;
1299     }
1300 }
1301
1302 /*****************************************************************************
1303  * RollOverTcp: reopen the rtsp into TCP mode
1304  * XXX: ugly, a lot of code are duplicated from Open()
1305  * This should REALLY be fixed
1306  *****************************************************************************/
1307 static int RollOverTcp( demux_t *p_demux )
1308 {
1309     demux_sys_t *p_sys = p_demux->p_sys;
1310     int i, i_return;
1311
1312     var_SetBool( p_demux, "rtsp-tcp", VLC_TRUE );
1313
1314     /* We close the old RTSP session */
1315     for( i = 0; i < p_sys->i_track; i++ )
1316     {
1317         live_track_t *tk = p_sys->track[i];
1318
1319         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1320         free( tk->p_buffer );
1321         free( tk );
1322     }
1323     if( p_sys->i_track ) free( p_sys->track );
1324     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1325
1326     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1327     Medium::close( p_sys->ms );
1328     RTSPClient::close( p_sys->rtsp );
1329
1330     p_sys->ms = NULL;
1331     p_sys->rtsp = NULL;
1332     p_sys->track = NULL;
1333     p_sys->i_track = 0;
1334
1335     /* Reopen rtsp client */
1336     if( ( p_demux->s != NULL ) &&
1337         ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1338     {
1339         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1340                  p_sys->psz_path );
1341         goto error;
1342     }
1343
1344     if( p_sys->p_sdp == NULL )
1345     {
1346         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1347         goto error;
1348     }
1349
1350     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1351     {
1352         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1353         goto error;
1354     }
1355
1356     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1357         goto error;
1358
1359     return VLC_SUCCESS;
1360
1361 error:
1362     return VLC_EGENERIC;
1363 }
1364
1365
1366 /*****************************************************************************
1367  *
1368  *****************************************************************************/
1369 static void StreamRead( void *p_private, unsigned int i_size,
1370                         unsigned int i_truncated_bytes, struct timeval pts,
1371                         unsigned int duration )
1372 {
1373     live_track_t   *tk = (live_track_t*)p_private;
1374     demux_t        *p_demux = tk->p_demux;
1375     demux_sys_t    *p_sys = p_demux->p_sys;
1376     block_t        *p_block;
1377
1378     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1379
1380     int64_t i_pts = (uint64_t)pts.tv_sec * UI64C(1000000) +
1381         (uint64_t)pts.tv_usec;
1382
1383     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1384     i_pts &= UI64C(0x00ffffffffffffff);
1385
1386     if( tk->b_quicktime && tk->p_es == NULL )
1387     {
1388         QuickTimeGenericRTPSource *qtRTPSource =
1389             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1390         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1391         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1392
1393         if( tk->fmt.i_cat == VIDEO_ES ) {
1394             if( qtState.sdAtomSize < 16 + 32 )
1395             {
1396                 /* invalid */
1397                 p_sys->event = 0xff;
1398                 tk->waiting = 0;
1399                 return;
1400             }
1401             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1402             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1403             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1404
1405             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1406             {
1407                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1408                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1409                                   + qtRTPSource->qtState.sdAtomSize;
1410                 while (pos+8 < endpos) {
1411                     unsigned atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1412                     if( atomLength == 0 || atomLength > endpos-pos) break;
1413                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1414                         atomLength > 8 &&
1415                         atomLength <= INT_MAX )
1416                     {
1417                         tk->fmt.i_extra = atomLength-8;
1418                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1419                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1420                         break;
1421                     }
1422                     pos += atomLength;
1423                 }
1424             }
1425             else
1426             {
1427                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1428                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1429                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1430             }
1431         }
1432         else {
1433             if( qtState.sdAtomSize < 4 )
1434             {
1435                 /* invalid */
1436                 p_sys->event = 0xff;
1437                 tk->waiting = 0;
1438                 return;
1439             }
1440             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1441         }
1442         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1443     }
1444
1445 #if 0
1446     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1447              i_size,
1448              pts.tv_sec * 1000000LL + pts.tv_usec );
1449 #endif
1450
1451     /* grow buffer if it looks like buffer is too small, but don't eat
1452      * up all the memory on strange streams */
1453     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1454     {
1455         void *p_tmp;
1456         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1457         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1458         tk->i_buffer *= 2;
1459         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1460         if( p_tmp == NULL )
1461         {
1462             msg_Warn( p_demux, "realloc failed" );
1463         }
1464         else
1465         {
1466             tk->p_buffer = (uint8_t*)p_tmp;
1467         }
1468     }
1469     if( i_size > tk->i_buffer )
1470     {
1471         msg_Warn( p_demux, "buffer overflow" );
1472     }
1473     /* FIXME could i_size be > buffer size ? */
1474     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1475         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1476     {
1477         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1478
1479         p_block = block_New( p_demux, i_size + 1 );
1480         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1481         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1482     }
1483     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1484     {
1485 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1081468800
1486         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1487         uint32_t header = h261Source->lastSpecialHeader();
1488 #else
1489         uint32_t header = 0;
1490         msg_Warn( p_demux, "need livemedia library >= \"2004.04.09\"" );
1491 #endif
1492         p_block = block_New( p_demux, i_size + 4 );
1493         memcpy( p_block->p_buffer, &header, 4 );
1494         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1495
1496         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1497             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1498     }
1499     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1500     {
1501         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1502             msg_Warn( p_demux, "unsupported NAL type for H264" );
1503
1504         /* Normal NAL type */
1505         p_block = block_New( p_demux, i_size + 4 );
1506         p_block->p_buffer[0] = 0x00;
1507         p_block->p_buffer[1] = 0x00;
1508         p_block->p_buffer[2] = 0x00;
1509         p_block->p_buffer[3] = 0x01;
1510         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1511     }
1512     else if( tk->b_asf )
1513     {
1514         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1515         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1516
1517         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1518     }
1519     else
1520     {
1521         p_block = block_New( p_demux, i_size );
1522         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1523     }
1524
1525     /* Update NPT */
1526     //msg_Dbg( p_demux, "current %d, start_seq %u", (int)tk->sub->rtpSource()->curPacketRTPSeqNum(), tk->i_start_seq );
1527     if( (tk->fmt.i_cat == VIDEO_ES) && (p_sys->i_pcr < i_pts) &&
1528         (i_pts > 0) && (p_sys->i_pcr > 0) )
1529     {
1530         p_sys->i_npt += __MAX( 0, i_pts - p_sys->i_pcr );
1531         p_sys->i_pcr = i_pts;
1532         //msg_Dbg( p_demux, "npt update" );
1533     }
1534     else if( /*tk->fmt.i_cat == VIDEO_ES &&*/ p_sys->i_pcr < i_pts )
1535     {
1536         p_sys->i_pcr = i_pts;
1537     }
1538     //msg_Dbg( p_demux, "npt %lld", p_sys->i_npt );
1539
1540     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1541     {
1542         p_block->i_dts = ( tk->fmt.i_cat == VIDEO_ES ) ? 0 : i_pts;
1543         p_block->i_pts = i_pts;
1544     }
1545
1546     if( tk->b_muxed )
1547     {
1548         stream_DemuxSend( tk->p_out_muxed, p_block );
1549     }
1550     else if( tk->b_asf )
1551     {
1552         stream_DemuxSend( p_sys->p_out_asf, p_block );
1553     }
1554     else
1555     {
1556         es_out_Send( p_demux->out, tk->p_es, p_block );
1557     }
1558
1559     /* warn that's ok */
1560     p_sys->event = 0xff;
1561
1562     /* we have read data */
1563     tk->waiting = 0;
1564     p_demux->p_sys->b_no_data = VLC_FALSE;
1565     p_demux->p_sys->i_no_data_ti = 0;
1566
1567     if( i_pts > 0 && !tk->b_muxed )
1568     {
1569         tk->i_pts = i_pts;
1570     }
1571 }
1572
1573 /*****************************************************************************
1574  *
1575  *****************************************************************************/
1576 static void StreamClose( void *p_private )
1577 {
1578     live_track_t   *tk = (live_track_t*)p_private;
1579     demux_t        *p_demux = tk->p_demux;
1580     demux_sys_t    *p_sys = p_demux->p_sys;
1581
1582     msg_Dbg( p_demux, "StreamClose" );
1583
1584     p_sys->event = 0xff;
1585     p_demux->b_error = VLC_TRUE;
1586 }
1587
1588
1589 /*****************************************************************************
1590  *
1591  *****************************************************************************/
1592 static void TaskInterrupt( void *p_private )
1593 {
1594     demux_t *p_demux = (demux_t*)p_private;
1595
1596     p_demux->p_sys->i_no_data_ti++;
1597
1598     /* Avoid lock */
1599     p_demux->p_sys->event = 0xff;
1600 }
1601
1602 /*****************************************************************************
1603  *
1604  *****************************************************************************/
1605 static void TimeoutPrevention( timeout_thread_t *p_timeout )
1606 {
1607     p_timeout->b_die = VLC_FALSE;
1608     p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1609     p_timeout->i_remain *= 1000000;
1610
1611     vlc_thread_ready( p_timeout );
1612
1613     /* Avoid lock */
1614     while( !p_timeout->b_die )
1615     {
1616         if( p_timeout->i_remain <= 0 )
1617         {
1618             p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1619             p_timeout->i_remain *= 1000000;
1620             p_timeout->p_sys->b_timeout_call = VLC_TRUE;
1621             msg_Dbg( p_timeout, "reset the timeout timer" );
1622         }
1623         p_timeout->i_remain -= 200000;
1624         msleep( 200000 ); /* 200 ms */
1625     }
1626 }
1627
1628 /*****************************************************************************
1629  *
1630  *****************************************************************************/
1631 static int b64_decode( char *dest, char *src );
1632
1633 static int ParseASF( demux_t *p_demux )
1634 {
1635     demux_sys_t    *p_sys = p_demux->p_sys;
1636
1637     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1638     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1639     char *psz_end;
1640     block_t *p_header;
1641
1642     /* Parse the asf header */
1643     if( psz_asf == NULL )
1644         return VLC_EGENERIC;
1645
1646     psz_asf += strlen( psz_marker );
1647     psz_asf = strdup( psz_asf );    /* Duplicate it */
1648     psz_end = strchr( psz_asf, '\n' );
1649
1650     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1651         *psz_end-- = '\0';
1652
1653     if( psz_asf >= psz_end )
1654     {
1655         free( psz_asf );
1656         return VLC_EGENERIC;
1657     }
1658
1659     /* Always smaller */
1660     p_header = block_New( p_demux, psz_end - psz_asf );
1661     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1662     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1663     if( p_header->i_buffer <= 0 )
1664     {
1665         free( psz_asf );
1666         return VLC_EGENERIC;
1667     }
1668
1669     /* Parse it to get packet size */
1670     E_(asf_HeaderParse)( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1671
1672     /* Send it to demuxer */
1673     stream_DemuxSend( p_sys->p_out_asf, p_header );
1674
1675     free( psz_asf );
1676     return VLC_SUCCESS;
1677 }
1678
1679
1680 static unsigned char* parseH264ConfigStr( char const* configStr,
1681                                           unsigned int& configSize )
1682 {
1683     char *dup, *psz;
1684     int i, i_records = 1;
1685
1686     if( configSize )
1687     configSize = 0;
1688
1689     if( configStr == NULL || *configStr == '\0' )
1690         return NULL;
1691
1692     psz = dup = strdup( configStr );
1693
1694     /* Count the number of comma's */
1695     for( psz = dup; *psz != '\0'; ++psz )
1696     {
1697         if( *psz == ',')
1698         {
1699             ++i_records;
1700             *psz = '\0';
1701         }
1702     }
1703
1704     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1705     psz = dup;
1706     for( i = 0; i < i_records; i++ )
1707     {
1708         cfg[configSize++] = 0x00;
1709         cfg[configSize++] = 0x00;
1710         cfg[configSize++] = 0x00;
1711         cfg[configSize++] = 0x01;
1712
1713         configSize += b64_decode( (char*)&cfg[configSize], psz );
1714         psz += strlen(psz)+1;
1715     }
1716
1717     if( dup ) free( dup );
1718     return cfg;
1719 }
1720
1721 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1722 static int b64_decode( char *dest, char *src )
1723 {
1724     const char *dest_start = dest;
1725     int  i_level;
1726     int  last = 0;
1727     int  b64[256] = {
1728         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1729         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1730         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1731         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1732         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1733         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1734         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1735         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1736         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1737         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1738         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1739         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1740         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1741         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1742         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1743         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1744         };
1745
1746     for( i_level = 0; *src != '\0'; src++ )
1747     {
1748         int  c;
1749
1750         c = b64[(unsigned int)*src];
1751         if( c == -1 )
1752         {
1753             continue;
1754         }
1755
1756         switch( i_level )
1757         {
1758             case 0:
1759                 i_level++;
1760                 break;
1761             case 1:
1762                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1763                 i_level++;
1764                 break;
1765             case 2:
1766                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1767                 i_level++;
1768                 break;
1769             case 3:
1770                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1771                 i_level = 0;
1772         }
1773         last = c;
1774     }
1775
1776     *dest = '\0';
1777
1778     return dest - dest_start;
1779 }