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 #include <vlc_input.h>
  44 #include <vlc_demux.h>
  45 #include <vlc_dialog.h>
  46 #include <vlc_network.h>
  47 #include <vlc_url.h>
  48
  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         add_shortcut( "live" )
 107         add_shortcut( "livedotcom" )
 108         set_capability( "access_demux", 0 )
 109         set_callbacks( Open, Close )
 110         add_bool( "rtsp-tcp", 0, NULL,
 111                   N_("Use RTP over RTSP (TCP)"),
 112                   N_("Use RTP over RTSP (TCP)"), true )
 113         add_integer( "rtp-client-port", -1, NULL,
 114                   N_("Client port"),
 115                   N_("Port to use for the RTP source of the session"), true )
 116         add_bool( "rtsp-mcast", false, NULL,
 117                   N_("Force multicast RTP via RTSP"),
 118                   N_("Force multicast RTP via RTSP"), true )
 119         add_bool( "rtsp-http", 0, NULL,
 120                   N_("Tunnel RTSP and RTP over HTTP"),
 121                   N_("Tunnel RTSP and RTP over HTTP"), true )
 122         add_integer( "rtsp-http-port", 80, NULL,
 123                   N_("HTTP tunnel port"),
 124                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 125                   true )
 126         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 127                     CACHING_TEXT, CACHING_LONGTEXT, true )
 128             change_safe()
 129         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 130                     KASENNA_LONGTEXT, true )
 131         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 132                     USER_LONGTEXT, true )
 133         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 134                     PASS_LONGTEXT, true )
 135 vlc_module_end ()
 136
 137
 138 /*****************************************************************************
 139  * Local prototypes
 140  *****************************************************************************/
 141
 142 typedef struct
 143 {
 144     demux_t         *p_demux;
 145     MediaSubsession *sub;
 146
 147     es_format_t     fmt;
 148     es_out_id_t     *p_es;
 149
 150     bool            b_muxed;
 151     bool            b_quicktime;
 152     bool            b_asf;
 153     stream_t        *p_out_muxed;    /* for muxed stream */
 154
 155     uint8_t         *p_buffer;
 156     unsigned int    i_buffer;
 157
 158     bool            b_rtcp_sync;
 159     char            waiting;
 160     int64_t         i_pts;
 161     float           i_npt;
 162
 163 } live_track_t;
 164
 165 struct timeout_thread_t
 166 {
 167     demux_sys_t  *p_sys;
 168     vlc_thread_t handle;
 169     bool         b_handle_keep_alive;
 170 };
 171
 172 struct demux_sys_t
 173 {
 174     char            *p_sdp;    /* XXX mallocated */
 175     char            *psz_path; /* URL-encoded path */
 176     vlc_url_t       url;
 177
 178     MediaSession     *ms;
 179     TaskScheduler    *scheduler;
 180     UsageEnvironment *env ;
 181     RTSPClient       *rtsp;
 182
 183     /* */
 184     int              i_track;
 185     live_track_t     **track;   /* XXX mallocated */
 186
 187     /* Weird formats */
 188     asf_header_t     asfh;
 189     stream_t         *p_out_asf;
 190     bool             b_real;
 191
 192     /* */
 193     int64_t          i_pcr; /* The clock */
 194     float            i_npt;
 195     float            i_npt_length;
 196     float            i_npt_start;
 197
 198     /* timeout thread information */
 199     int              i_timeout;     /* session timeout value in seconds */
 200     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 201     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 202
 203     /* */
 204     bool             b_force_mcast;
 205     bool             b_multicast;   /* if one of the tracks is multicasted */
 206     bool             b_no_data;     /* if we never received any data */
 207     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 208
 209     char             event;
 210
 211     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 212 };
 213
 214 static int Demux  ( demux_t * );
 215 static int Control( demux_t *, int, va_list );
 216
 217 static int Connect      ( demux_t * );
 218 static int SessionsSetup( demux_t * );
 219 static int Play         ( demux_t *);
 220 static int ParseASF     ( demux_t * );
 221 static int RollOverTcp  ( demux_t * );
 222
 223 static void StreamRead  ( void *, unsigned int, unsigned int,
 224                           struct timeval, unsigned int );
 225 static void StreamClose ( void * );
 226 static void TaskInterrupt( void * );
 227
 228 static void* TimeoutPrevention( void * );
 229
 230 static unsigned char* parseH264ConfigStr( char const* configStr,
 231                                           unsigned int& configSize );
 232
 233 /*****************************************************************************
 234  * DemuxOpen:
 235  *****************************************************************************/
 236 static int  Open ( vlc_object_t *p_this )
 237 {
 238     demux_t     *p_demux = (demux_t*)p_this;
 239     demux_sys_t *p_sys = NULL;
 240
 241     int i, i_return;
 242     int i_error = VLC_EGENERIC;
 243
 244     if( p_demux->s )
 245     {
 246         /* See if it looks like a SDP
 247            v, o, s fields are mandatory and in this order */
 248         const uint8_t *p_peek;
 249         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 250
 251         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 252             memcmp( p_peek, "v=0\n", 4 ) &&
 253             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 254         {
 255             return VLC_EGENERIC;
 256         }
 257     }
 258     else
 259     {
 260         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 261     }
 262
 263     p_demux->pf_demux  = Demux;
 264     p_demux->pf_control= Control;
 265     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 266     if( !p_sys ) return VLC_ENOMEM;
 267
 268     p_sys->p_sdp = NULL;
 269     p_sys->scheduler = NULL;
 270     p_sys->env = NULL;
 271     p_sys->ms = NULL;
 272     p_sys->rtsp = NULL;
 273     p_sys->i_track = 0;
 274     p_sys->track   = NULL;
 275     p_sys->i_pcr = 0;
 276     p_sys->i_npt = 0.;
 277     p_sys->i_npt_start = 0.;
 278     p_sys->i_npt_length = 0.;
 279     p_sys->p_out_asf = NULL;
 280     p_sys->b_no_data = true;
 281     p_sys->i_no_data_ti = 0;
 282     p_sys->p_timeout = NULL;
 283     p_sys->i_timeout = 0;
 284     p_sys->b_timeout_call = false;
 285     p_sys->b_multicast = false;
 286     p_sys->b_real = false;
 287     p_sys->psz_path = strdup( p_demux->psz_path );
 288     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 289     p_sys->b_get_param = false;
 290
 291     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 292     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 293
 294     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 295     {
 296         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 297         goto error;
 298     }
 299     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 300     {
 301         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 302         goto error;
 303     }
 304
 305     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 306     {
 307         char *p = p_sys->psz_path;
 308         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 309     }
 310
 311     if( p_demux->s != NULL )
 312     {
 313         /* Gather the complete sdp file */
 314         int     i_sdp       = 0;
 315         int     i_sdp_max   = 1000;
 316         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 317
 318         if( !p_sdp )
 319         {
 320             i_error = VLC_ENOMEM;
 321             goto error;
 322         }
 323
 324         for( ;; )
 325         {
 326             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 327                                       i_sdp_max - i_sdp - 1 );
 328
 329             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 330             {
 331                 free( p_sdp );
 332                 goto error;
 333             }
 334
 335             if( i_read < 0 )
 336             {
 337                 msg_Err( p_demux, "failed to read SDP" );
 338                 free( p_sdp );
 339                 goto error;
 340             }
 341
 342             i_sdp += i_read;
 343
 344             if( i_read < i_sdp_max - i_sdp - 1 )
 345             {
 346                 p_sdp[i_sdp] = '\0';
 347                 break;
 348             }
 349
 350             i_sdp_max += 1000;
 351             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 352         }
 353         p_sys->p_sdp = (char*)p_sdp;
 354     }
 355     else if( ( p_demux->s == NULL ) &&
 356              !strcasecmp( p_demux->psz_access, "sdp" ) )
 357     {
 358         /* sdp:// link from SAP */
 359         p_sys->p_sdp = strdup( p_sys->psz_path );
 360     }
 361     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 362     {
 363         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 364         goto error;
 365     }
 366
 367     if( p_sys->p_sdp == NULL )
 368     {
 369         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 370         i_error = VLC_ENOMEM;
 371         goto error;
 372     }
 373
 374     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 375     {
 376         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 377         goto error;
 378     }
 379
 380     if( p_sys->b_real ) goto error;
 381
 382     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 383         goto error;
 384
 385     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 386     {
 387         msg_Err( p_demux, "cannot find a usable asf header" );
 388         /* TODO Clean tracks */
 389         goto error;
 390     }
 391
 392     if( p_sys->i_track <= 0 )
 393         goto error;
 394
 395     return VLC_SUCCESS;
 396
 397 error:
 398     for( i = 0; i < p_sys->i_track; i++ )
 399     {
 400         live_track_t *tk = p_sys->track[i];
 401
 402         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 403         es_format_Clean( &tk->fmt );
 404         free( tk->p_buffer );
 405         free( tk );
 406     }
 407
 408     if( p_sys->i_track ) free( p_sys->track );
 409     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 410     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 411     if( p_sys->p_timeout )
 412     {
 413         vlc_cancel( p_sys->p_timeout->handle );
 414         vlc_join( p_sys->p_timeout->handle, NULL );
 415         free( p_sys->p_timeout );
 416     }
 417     if( p_sys->ms ) Medium::close( p_sys->ms );
 418     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 419     if( p_sys->env ) p_sys->env->reclaim();
 420     delete p_sys->scheduler;
 421     free( p_sys->p_sdp );
 422     free( p_sys->psz_path );
 423
 424     vlc_UrlClean( &p_sys->url );
 425
 426     free( p_sys );
 427     return i_error;
 428 }
 429
 430 /*****************************************************************************
 431  * DemuxClose:
 432  *****************************************************************************/
 433 static void Close( vlc_object_t *p_this )
 434 {
 435     demux_t *p_demux = (demux_t*)p_this;
 436     demux_sys_t *p_sys = p_demux->p_sys;
 437     int i;
 438
 439     for( i = 0; i < p_sys->i_track; i++ )
 440     {
 441         live_track_t *tk = p_sys->track[i];
 442
 443         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 444         es_format_Clean( &tk->fmt );
 445         free( tk->p_buffer );
 446         free( tk );
 447     }
 448
 449     if( p_sys->i_track ) free( p_sys->track );
 450     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 451     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 452     if( p_sys->p_timeout )
 453     {
 454         vlc_cancel( p_sys->p_timeout->handle );
 455         vlc_join( p_sys->p_timeout->handle, NULL );
 456         free( p_sys->p_timeout );
 457     }
 458     if( p_sys->ms ) Medium::close( p_sys->ms );
 459     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 460     if( p_sys->env ) p_sys->env->reclaim();
 461     delete p_sys->scheduler;
 462     free( p_sys->p_sdp );
 463     free( p_sys->psz_path );
 464
 465     vlc_UrlClean( &p_sys->url );
 466
 467     free( p_sys );
 468 }
 469
 470 /*****************************************************************************
 471  * Connect: connects to the RTSP server to setup the session DESCRIBE
 472  *****************************************************************************/
 473 static int Connect( demux_t *p_demux )
 474 {
 475     demux_sys_t *p_sys = p_demux->p_sys;
 476     Authenticator authenticator;
 477     bool b_firstpass  = true;
 478     char *psz_user    = NULL;
 479     char *psz_pwd     = NULL;
 480     char *psz_url     = NULL;
 481     char *psz_options = NULL;
 482     char *p_sdp       = NULL;
 483     int  i_http_port  = 0;
 484     int  i_ret        = VLC_SUCCESS;
 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 createnew:
 508     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 509     {
 510         free( psz_user );
 511         free( psz_pwd );
 512         free( psz_url );
 513         return VLC_EGENERIC;
 514     }
 515
 516     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 517         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 518
 519     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 520           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 521           "VLC media player", i_http_port ) ) == NULL )
 522     {
 523         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 524                  p_sys->env->getResultMsg() );
 525         free( psz_user );
 526         free( psz_pwd );
 527         free( psz_url );
 528         return VLC_EGENERIC;
 529     }
 530
 531     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 532      * Appending _KA to the string should be enough to enable this feature,
 533      * however, there is a bug where the _KA doesn't get parsed from the
 534      * default User-Agent as created by VLC/Live555 code. This is probably due
 535      * to spaces in the string or the string being too long. Here we override
 536      * the default string with a more compact version.
 537      */
 538     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 539     {
 540         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 541     }
 542
 543 describe:
 544     authenticator.setUsernameAndPassword( (const char*)psz_user,
 545                                           (const char*)psz_pwd );
 546
 547     /* */
 548     const int i_timeout = var_CreateGetInteger(p_demux, "ipv4-timeout") / 1000;
 549
 550 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 551     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 552                                                &authenticator, i_timeout );
 553 #else
 554     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 555                                                &authenticator );
 556 #endif
 557     if( psz_options == NULL && authenticator.realm() != NULL )
 558     {
 559         // try again, with the realm set this time
 560 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 561         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 562                                                &authenticator, i_timeout );
 563 #else
 564         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 565                                                &authenticator );
 566 #endif
 567     }
 568     if( psz_options )
 569         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 570     delete [] psz_options;
 571
 572 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 573     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 574                                           var_GetBool( p_demux, "rtsp-kasenna" ), i_timeout );
 575 #else
 576     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 577                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
 578 #endif
 579
 580     if( p_sdp == NULL )
 581     {
 582         /* failure occurred */
 583         int i_code = 0;
 584         const char *psz_error = p_sys->env->getResultMsg();
 585
 586         if( var_GetBool( p_demux, "rtsp-http" ) )
 587             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 588                     &i_code );
 589         else
 590         {
 591             const char *psz_tmp = strstr( psz_error, "RTSP" );
 592             if( psz_tmp )
 593                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 594             else
 595                 i_code = 0;
 596         }
 597         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 598
 599         if( b_firstpass )
 600         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 601              * first time. This is a workaround to avoid asking for a
 602              * user/passwd the first time the code passess here. */
 603             i_code = 0;
 604             b_firstpass = false;
 605         }
 606
 607         if( i_code == 401 )
 608         {
 609             msg_Dbg( p_demux, "authentication failed" );
 610
 611             free( psz_user );
 612             free( psz_pwd );
 613             dialog_Login( p_demux, &psz_user, &psz_pwd,
 614                           _("RTSP authentication"),
 615                         _("Please enter a valid login name and a password.") );
 616             if( psz_user != NULL && psz_pwd != NULL )
 617             {
 618                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 619                          psz_user, psz_pwd );
 620                 goto describe;
 621             }
 622         }
 623         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 624         {
 625             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 626             vlc_value_t val;
 627             val.b_bool = true;
 628             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 629             var_Set( p_demux, "rtsp-http", val );
 630             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 631             p_sys->rtsp = NULL;
 632             goto createnew;
 633         }
 634         else
 635         {
 636             msg_Dbg( p_demux, "connection timeout" );
 637             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 638             p_sys->rtsp = NULL;
 639         }
 640         i_ret = VLC_EGENERIC;
 641     }
 642
 643     /* malloc-ated copy */
 644     free( psz_url );
 645     free( psz_user );
 646     free( psz_pwd );
 647
 648     free( p_sys->p_sdp );
 649     p_sys->p_sdp = NULL;
 650     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 651     delete[] p_sdp;
 652
 653     return i_ret;
 654 }
 655
 656 /*****************************************************************************
 657  * SessionsSetup: prepares the subsessions and does the SETUP
 658  *****************************************************************************/
 659 static int SessionsSetup( demux_t *p_demux )
 660 {
 661     demux_sys_t             *p_sys  = p_demux->p_sys;
 662     MediaSubsessionIterator *iter   = NULL;
 663     MediaSubsession         *sub    = NULL;
 664
 665     bool           b_rtsp_tcp = false;
 666     int            i_client_port;
 667     int            i_return = VLC_SUCCESS;
 668     unsigned int   i_buffer = 0;
 669     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 670
 671     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 672                     var_GetBool( p_demux, "rtsp-http" );
 673     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 674
 675     /* Create the session from the SDP */
 676     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 677     {
 678         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 679             p_sys->env->getResultMsg() );
 680         return VLC_EGENERIC;
 681     }
 682
 683     /* Initialise each media subsession */
 684     iter = new MediaSubsessionIterator( *p_sys->ms );
 685     while( ( sub = iter->next() ) != NULL )
 686     {
 687         Boolean bInit;
 688         live_track_t *tk;
 689
 690         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 691         {
 692             delete iter;
 693             return VLC_EGENERIC;
 694         }
 695
 696         /* Value taken from mplayer */
 697         if( !strcmp( sub->mediumName(), "audio" ) )
 698             i_buffer = 100000;
 699         else if( !strcmp( sub->mediumName(), "video" ) )
 700             i_buffer = 2000000;
 701         else continue;
 702
 703         if( i_client_port != -1 )
 704         {
 705             sub->setClientPortNum( i_client_port );
 706             i_client_port += 2;
 707         }
 708
 709         if( strcasestr( sub->codecName(), "REAL" ) )
 710         {
 711             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 712             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 713             continue;
 714         }
 715
 716         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 717             bInit = sub->initiate( 4 ); /* Constant ? */
 718         else
 719             bInit = sub->initiate();
 720
 721         if( !bInit )
 722         {
 723             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 724                       sub->mediumName(), sub->codecName(),
 725                       p_sys->env->getResultMsg() );
 726         }
 727         else
 728         {
 729             if( sub->rtpSource() != NULL )
 730             {
 731                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 732
 733                 /* Increase the buffer size */
 734                 if( i_buffer > 0 )
 735                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 736
 737                 /* Increase the RTP reorder timebuffer just a bit */
 738                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 739             }
 740             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 741                      sub->codecName() );
 742
 743             /* Issue the SETUP */
 744             if( p_sys->rtsp )
 745             {
 746                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 747                                            b_rtsp_tcp ? True : False,
 748                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 749                 {
 750                     /* if we get an unsupported transport error, toggle TCP use and try again */
 751                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 752                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 753                                            b_rtsp_tcp ? False : True,
 754                                            False ) )
 755                     {
 756                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 757                                  sub->codecName(), p_sys->env->getResultMsg() );
 758                         continue;
 759                     }
 760                 }
 761             }
 762
 763             /* Check if we will receive data from this subsession for this track */
 764             if( sub->readSource() == NULL ) continue;
 765             if( !p_sys->b_multicast )
 766             {
 767                 /* Check, because we need diff. rollover behaviour for multicast */
 768                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 769             }
 770
 771             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 772             if( !tk )
 773             {
 774                 delete iter;
 775                 return VLC_ENOMEM;
 776             }
 777             tk->p_demux     = p_demux;
 778             tk->sub         = sub;
 779             tk->p_es        = NULL;
 780             tk->b_quicktime = false;
 781             tk->b_asf       = false;
 782             tk->b_muxed     = false;
 783             tk->p_out_muxed = NULL;
 784             tk->waiting     = 0;
 785             tk->b_rtcp_sync = false;
 786             tk->i_pts       = 0;
 787             tk->i_npt       = 0.;
 788             tk->i_buffer    = 65536;
 789             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 790             if( !tk->p_buffer )
 791             {
 792                 free( tk );
 793                 delete iter;
 794                 return VLC_ENOMEM;
 795             }
 796
 797             /* Value taken from mplayer */
 798             if( !strcmp( sub->mediumName(), "audio" ) )
 799             {
 800                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 801                 tk->fmt.audio.i_channels = sub->numChannels();
 802                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 803
 804                 if( !strcmp( sub->codecName(), "MPA" ) ||
 805                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 806                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 807                 {
 808                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 809                     tk->fmt.audio.i_rate = 0;
 810                 }
 811                 else if( !strcmp( sub->codecName(), "AC3" ) )
 812                 {
 813                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 814                     tk->fmt.audio.i_rate = 0;
 815                 }
 816                 else if( !strcmp( sub->codecName(), "L16" ) )
 817                 {
 818                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 819                     tk->fmt.audio.i_bitspersample = 16;
 820                 }
 821                 else if( !strcmp( sub->codecName(), "L8" ) )
 822                 {
 823                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 824                     tk->fmt.audio.i_bitspersample = 8;
 825                 }
 826                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 827                 {
 828                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 829                 }
 830                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 831                 {
 832                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 833                 }
 834                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 835                 {
 836                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 837                     tk->fmt.audio.i_rate = 8000;
 838                     tk->fmt.audio.i_channels = 1;
 839                     if( !strcmp( sub->codecName()+5, "40" ) )
 840                         tk->fmt.i_bitrate = 40000;
 841                     else if( !strcmp( sub->codecName()+5, "32" ) )
 842                         tk->fmt.i_bitrate = 32000;
 843                     else if( !strcmp( sub->codecName()+5, "24" ) )
 844                         tk->fmt.i_bitrate = 24000;
 845                     else if( !strcmp( sub->codecName()+5, "16" ) )
 846                         tk->fmt.i_bitrate = 16000;
 847                 }
 848                 else if( !strcmp( sub->codecName(), "AMR" ) )
 849                 {
 850                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 851                 }
 852                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 853                 {
 854                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 855                 }
 856                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 857                 {
 858                     unsigned int i_extra;
 859                     uint8_t      *p_extra;
 860
 861                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 862
 863                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 864                                                              i_extra ) ) )
 865                     {
 866                         tk->fmt.i_extra = i_extra;
 867                         tk->fmt.p_extra = malloc( i_extra );
 868                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 869                         delete[] p_extra;
 870                     }
 871                     /* Because the "faad" decoder does not handle the LATM data length field
 872                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 873                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 874                 }
 875                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 876                 {
 877                     unsigned int i_extra;
 878                     uint8_t      *p_extra;
 879
 880                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 881
 882                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 883                                                            i_extra ) ) )
 884                     {
 885                         tk->fmt.i_extra = i_extra;
 886                         tk->fmt.p_extra = malloc( i_extra );
 887                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 888                         delete[] p_extra;
 889                     }
 890                 }
 891                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 892                 {
 893                     tk->b_asf = true;
 894                     if( p_sys->p_out_asf == NULL )
 895                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 896                                                             p_demux->out );
 897                 }
 898                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 899                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 900                 {
 901                     tk->b_quicktime = true;
 902                 }
 903                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 904                 {
 905                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 906                     if ( sub->rtpTimestampFrequency() )
 907                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 908                     else
 909                     {
 910                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 911                         tk->fmt.audio.i_rate = 8000;
 912                     }
 913                 }
 914             }
 915             else if( !strcmp( sub->mediumName(), "video" ) )
 916             {
 917                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 918                 if( !strcmp( sub->codecName(), "MPV" ) )
 919                 {
 920                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 921                 }
 922                 else if( !strcmp( sub->codecName(), "H263" ) ||
 923                          !strcmp( sub->codecName(), "H263-1998" ) ||
 924                          !strcmp( sub->codecName(), "H263-2000" ) )
 925                 {
 926                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 927                 }
 928                 else if( !strcmp( sub->codecName(), "H261" ) )
 929                 {
 930                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 931                 }
 932                 else if( !strcmp( sub->codecName(), "H264" ) )
 933                 {
 934                     unsigned int i_extra = 0;
 935                     uint8_t      *p_extra = NULL;
 936
 937                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 938                     tk->fmt.b_packetized = false;
 939
 940                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 941                                                     i_extra ) ) )
 942                     {
 943                         tk->fmt.i_extra = i_extra;
 944                         tk->fmt.p_extra = malloc( i_extra );
 945                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 946
 947                         delete[] p_extra;
 948                     }
 949                 }
 950                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 951                 {
 952                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 953                 }
 954                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 955                 {
 956                     unsigned int i_extra;
 957                     uint8_t      *p_extra;
 958
 959                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 960
 961                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 962                                                            i_extra ) ) )
 963                     {
 964                         tk->fmt.i_extra = i_extra;
 965                         tk->fmt.p_extra = malloc( i_extra );
 966                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 967                         delete[] p_extra;
 968                     }
 969                 }
 970                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 971                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 972                          !strcmp( sub->codecName(), "X-QDM" ) ||
 973                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 974                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 975                 {
 976                     tk->b_quicktime = true;
 977                 }
 978                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 979                 {
 980                     tk->b_muxed = true;
 981                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 982                 }
 983                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 984                          !strcmp( sub->codecName(), "MP1S" ) )
 985                 {
 986                     tk->b_muxed = true;
 987                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 988                                                        p_demux->out );
 989                 }
 990                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 991                 {
 992                     tk->b_asf = true;
 993                     if( p_sys->p_out_asf == NULL )
 994                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 995                                                             p_demux->out );;
 996                 }
 997             }
 998
 999             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
1000             {
1001                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1002             }
1003
1004             if( sub->rtcpInstance() != NULL )
1005             {
1006                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1007             }
1008
1009             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1010             {
1011                 /* Append */
1012                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1013                 p_sys->track[p_sys->i_track++] = tk;
1014             }
1015             else
1016             {
1017                 /* BUG ??? */
1018                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1019                 es_format_Clean( &tk->fmt );
1020                 free( tk );
1021             }
1022         }
1023     }
1024     delete iter;
1025     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1026
1027     /* Retrieve the starttime if possible */
1028     p_sys->i_npt_start = p_sys->ms->playStartTime();
1029
1030     /* Retrieve the duration if possible */
1031     p_sys->i_npt_length = p_sys->ms->playEndTime();
1032
1033     /* */
1034     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1035
1036     /* */
1037     p_sys->b_no_data = true;
1038     p_sys->i_no_data_ti = 0;
1039
1040     return i_return;
1041 }
1042
1043 /*****************************************************************************
1044  * Play: starts the actual playback of the stream
1045  *****************************************************************************/
1046 static int Play( demux_t *p_demux )
1047 {
1048     demux_sys_t *p_sys = p_demux->p_sys;
1049
1050     if( p_sys->rtsp )
1051     {
1052         /* The PLAY */
1053         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1054         {
1055             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1056             return VLC_EGENERIC;
1057         }
1058
1059         /* Retrieve the timeout value and set up a timeout prevention thread */
1060         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1061         if( p_sys->i_timeout <= 0 )
1062             p_sys->i_timeout = 60; /* default value from RFC2326 */
1063
1064         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1065         if( !p_sys->p_timeout && p_sys->b_get_param )
1066         {
1067             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1068             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1069             if( p_sys->p_timeout )
1070             {
1071                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1072                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1073                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1074                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1075                 {
1076                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1077                     free( p_sys->p_timeout );
1078                     p_sys->p_timeout = NULL;
1079                 }
1080                 else
1081                     msg_Dbg( p_demux, "spawned timeout thread" );
1082             }
1083             else
1084                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1085         }
1086     }
1087     p_sys->i_pcr = 0;
1088
1089     /* Retrieve the starttime if possible */
1090     p_sys->i_npt_start = p_sys->ms->playStartTime();
1091     p_sys->i_npt_length = p_sys->ms->playEndTime();
1092
1093     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1094     return VLC_SUCCESS;
1095 }
1096
1097
1098 /*****************************************************************************
1099  * Demux:
1100  *****************************************************************************/
1101 static int Demux( demux_t *p_demux )
1102 {
1103     demux_sys_t    *p_sys = p_demux->p_sys;
1104     TaskToken      task;
1105
1106     bool            b_send_pcr = true;
1107     int64_t         i_pcr = 0;
1108     int             i;
1109
1110     /* Check if we need to send the server a Keep-A-Live signal */
1111     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1112     {
1113         char *psz_bye = NULL;
1114         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1115         p_sys->b_timeout_call = false;
1116     }
1117
1118     for( i = 0; i < p_sys->i_track; i++ )
1119     {
1120         live_track_t *tk = p_sys->track[i];
1121
1122         if( tk->b_asf || tk->b_muxed )
1123             b_send_pcr = false;
1124 #if 0
1125         if( i_pcr == 0 )
1126         {
1127             i_pcr = tk->i_pts;
1128         }
1129         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1130         {
1131             i_pcr = tk->i_pts ;
1132         }
1133 #endif
1134     }
1135     if( p_sys->i_pcr > 0 )
1136     {
1137         if( b_send_pcr )
1138             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1139     }
1140
1141     /* First warn we want to read data */
1142     p_sys->event = 0;
1143     for( i = 0; i < p_sys->i_track; i++ )
1144     {
1145         live_track_t *tk = p_sys->track[i];
1146
1147         if( tk->waiting == 0 )
1148         {
1149             tk->waiting = 1;
1150             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1151                                           StreamRead, tk, StreamClose, tk );
1152         }
1153     }
1154     /* Create a task that will be called if we wait more than 300ms */
1155     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1156
1157     /* Do the read */
1158     p_sys->scheduler->doEventLoop( &p_sys->event );
1159
1160     /* remove the task */
1161     p_sys->scheduler->unscheduleDelayedTask( task );
1162
1163     /* Check for gap in pts value */
1164     for( i = 0; i < p_sys->i_track; i++ )
1165     {
1166         live_track_t *tk = p_sys->track[i];
1167
1168         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1169             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1170         {
1171             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1172
1173             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1174             tk->b_rtcp_sync = true;
1175             /* reset PCR */
1176             tk->i_pts = 0;
1177             tk->i_npt = 0.;
1178             p_sys->i_pcr = 0;
1179             p_sys->i_npt = 0.;
1180             i_pcr = 0;
1181         }
1182     }
1183
1184     if( p_sys->b_multicast && p_sys->b_no_data &&
1185         ( p_sys->i_no_data_ti > 120 ) )
1186     {
1187         /* FIXME Make this configurable
1188         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1189         return 0;
1190         */
1191     }
1192     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1193              ( p_sys->i_no_data_ti > 34 ) )
1194     {
1195         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1196                                 var_GetBool( p_demux, "rtsp-http" );
1197
1198         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1199         {
1200             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1201             if( RollOverTcp( p_demux ) )
1202             {
1203                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1204                 return 0;
1205             }
1206             return 1;
1207         }
1208         msg_Err( p_demux, "no data received in 10s, aborting" );
1209         return 0;
1210     }
1211     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1212     {
1213         /* EOF ? */
1214         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1215         return 0;
1216     }
1217     return p_demux->b_error ? 0 : 1;
1218 }
1219
1220 /*****************************************************************************
1221  * Control:
1222  *****************************************************************************/
1223 static int Control( demux_t *p_demux, int i_query, va_list args )
1224 {
1225     demux_sys_t *p_sys = p_demux->p_sys;
1226     int64_t *pi64, i64;
1227     double  *pf, f;
1228     bool *pb, *pb2, b_bool;
1229     int *pi_int;
1230
1231     switch( i_query )
1232     {
1233         case DEMUX_GET_TIME:
1234             pi64 = (int64_t*)va_arg( args, int64_t * );
1235             if( p_sys->i_npt > 0 )
1236             {
1237                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1238                 return VLC_SUCCESS;
1239             }
1240             return VLC_EGENERIC;
1241
1242         case DEMUX_GET_LENGTH:
1243             pi64 = (int64_t*)va_arg( args, int64_t * );
1244             if( p_sys->i_npt_length > 0 )
1245             {
1246                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1247                 return VLC_SUCCESS;
1248             }
1249             return VLC_EGENERIC;
1250
1251         case DEMUX_GET_POSITION:
1252             pf = (double*)va_arg( args, double* );
1253             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1254             {
1255                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1256                 return VLC_SUCCESS;
1257             }
1258             return VLC_EGENERIC;
1259
1260         case DEMUX_SET_POSITION:
1261         case DEMUX_SET_TIME:
1262             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1263             {
1264                 int i;
1265                 float time;
1266
1267                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1268                 {
1269                     i64 = (int64_t)va_arg( args, int64_t );
1270                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1271                 }
1272                 else if( i_query == DEMUX_SET_TIME )
1273                     return VLC_EGENERIC;
1274                 else
1275                 {
1276                     f = (double)va_arg( args, double );
1277                     time = f * (double)p_sys->i_npt_length;   /* in second */
1278                 }
1279
1280                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1281                 {
1282                     msg_Err( p_demux, "PLAY failed %s",
1283                         p_sys->env->getResultMsg() );
1284                     return VLC_EGENERIC;
1285                 }
1286                 p_sys->i_pcr = 0;
1287
1288                 /* Retrieve RTP-Info values */
1289                 for( i = 0; i < p_sys->i_track; i++ )
1290                 {
1291                     p_sys->track[i]->b_rtcp_sync = false;
1292                     p_sys->track[i]->i_pts = 0;
1293                 }
1294
1295                 /* Retrieve the starttime if possible */
1296                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1297
1298                 /* Retrieve the duration if possible */
1299                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1300
1301                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1302                 return VLC_SUCCESS;
1303             }
1304             return VLC_EGENERIC;
1305
1306         /* Special for access_demux */
1307         case DEMUX_CAN_PAUSE:
1308         case DEMUX_CAN_SEEK:
1309             pb = (bool*)va_arg( args, bool * );
1310             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1311                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1312                 *pb = true;
1313             else
1314                 *pb = false;
1315             return VLC_SUCCESS;
1316
1317         case DEMUX_CAN_CONTROL_PACE:
1318             pb = (bool*)va_arg( args, bool * );
1319
1320 #if 1       /* Disable for now until we have a clock synchro algo
1321              * which works with something else than MPEG over UDP */
1322             *pb = false;
1323 #else
1324             *pb = true;
1325 #endif
1326             return VLC_SUCCESS;
1327
1328         case DEMUX_CAN_CONTROL_RATE:
1329             pb = (bool*)va_arg( args, bool * );
1330             pb2 = (bool*)va_arg( args, bool * );
1331
1332             *pb = (p_sys->rtsp != NULL) &&
1333                     (p_sys->i_npt_length > 0) &&
1334                     !var_GetBool( p_demux, "rtsp-kasenna" );
1335             *pb2 = false;
1336             return VLC_SUCCESS;
1337
1338         case DEMUX_SET_RATE:
1339         {
1340             double f_scale, f_old_scale;
1341
1342             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1343                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1344                 return VLC_EGENERIC;
1345
1346             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1347              * supports Scale should:
1348              *
1349              * "The server should try to approximate the viewing rate, but may
1350              *  restrict the range of scale values that it supports. The response
1351              *  MUST contain the actual scale value chosen by the server."
1352              *
1353              * Scale = 1 indicates normal play
1354              * Scale > 1 indicates fast forward
1355              * Scale < 1 && Scale > 0 indicates slow motion
1356              * Scale < 0 value indicates rewind
1357              */
1358
1359             pi_int = (int*)va_arg( args, int * );
1360             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1361             f_old_scale = p_sys->ms->scale();
1362
1363             /* Passing -1 for the start and end time will mean liveMedia won't
1364              * create a Range: section for the RTSP message. The server should
1365              * pick up from the current position */
1366             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1367             {
1368                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1369                         p_sys->env->getResultMsg() );
1370                 return VLC_EGENERIC;
1371             }
1372
1373             if( p_sys->ms->scale() == f_old_scale )
1374             {
1375                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1376                           p_sys->ms->scale() );
1377                 return VLC_EGENERIC;
1378             }
1379
1380             /* ReSync the stream */
1381             p_sys->i_npt_start = 0;
1382             p_sys->i_pcr = 0;
1383             p_sys->i_npt = 0.0;
1384
1385             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1386             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1387             return VLC_SUCCESS;
1388         }
1389
1390         case DEMUX_SET_PAUSE_STATE:
1391         {
1392             int i;
1393
1394             b_bool = (bool)va_arg( args, int );
1395             if( p_sys->rtsp == NULL )
1396                 return VLC_EGENERIC;
1397
1398             /* FIXME */
1399             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1400                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1401                        -1 ) ) )
1402             {
1403                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1404                     return VLC_EGENERIC;
1405             }
1406
1407             /* When we Pause, we'll need the TimeoutPrevention thread to
1408              * handle sending the "Keep Alive" message to the server.
1409              * Unfortunately Live555 isn't thread safe and so can't
1410              * do this normally while the main Demux thread is handling
1411              * a live stream. We end up with the Timeout thread blocking
1412              * waiting for a response from the server. So when we PAUSE
1413              * we set a flag that the TimeoutPrevention function will check
1414              * and if it's set, it will trigger the GET_PARAMETER message */
1415             if( b_bool && p_sys->p_timeout != NULL )
1416                 p_sys->p_timeout->b_handle_keep_alive = true;
1417             else if( !b_bool && p_sys->p_timeout != NULL )
1418                 p_sys->p_timeout->b_handle_keep_alive = false;
1419
1420             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1421             {
1422                 live_track_t *tk = p_sys->track[i];
1423                 tk->b_rtcp_sync = false;
1424                 tk->i_pts = 0;
1425                 p_sys->i_pcr = 0;
1426                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1427             }
1428
1429             /* Retrieve the starttime if possible */
1430             p_sys->i_npt_start = p_sys->ms->playStartTime();
1431
1432             /* Retrieve the duration if possible */
1433             p_sys->i_npt_length = p_sys->ms->playEndTime();
1434
1435             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1436             return VLC_SUCCESS;
1437         }
1438         case DEMUX_GET_TITLE_INFO:
1439         case DEMUX_SET_TITLE:
1440         case DEMUX_SET_SEEKPOINT:
1441             return VLC_EGENERIC;
1442
1443         case DEMUX_GET_PTS_DELAY:
1444             pi64 = (int64_t*)va_arg( args, int64_t * );
1445             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1446             return VLC_SUCCESS;
1447
1448         default:
1449             return VLC_EGENERIC;
1450     }
1451 }
1452
1453 /*****************************************************************************
1454  * RollOverTcp: reopen the rtsp into TCP mode
1455  * XXX: ugly, a lot of code are duplicated from Open()
1456  * This should REALLY be fixed
1457  *****************************************************************************/
1458 static int RollOverTcp( demux_t *p_demux )
1459 {
1460     demux_sys_t *p_sys = p_demux->p_sys;
1461     int i, i_return;
1462
1463     var_SetBool( p_demux, "rtsp-tcp", true );
1464
1465     /* We close the old RTSP session */
1466     for( i = 0; i < p_sys->i_track; i++ )
1467     {
1468         live_track_t *tk = p_sys->track[i];
1469
1470         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1471         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1472         es_format_Clean( &tk->fmt );
1473         free( tk->p_buffer );
1474         free( tk );
1475     }
1476     if( p_sys->i_track ) free( p_sys->track );
1477     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1478
1479     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1480     Medium::close( p_sys->ms );
1481     RTSPClient::close( p_sys->rtsp );
1482
1483     p_sys->ms = NULL;
1484     p_sys->rtsp = NULL;
1485     p_sys->track = NULL;
1486     p_sys->i_track = 0;
1487     p_sys->b_no_data = true;
1488     p_sys->i_no_data_ti = 0;
1489
1490     /* Reopen rtsp client */
1491     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1492     {
1493         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1494                  p_sys->psz_path );
1495         goto error;
1496     }
1497
1498     if( p_sys->p_sdp == NULL )
1499     {
1500         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1501         goto error;
1502     }
1503
1504     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1505     {
1506         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1507         goto error;
1508     }
1509
1510     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1511         goto error;
1512
1513     return VLC_SUCCESS;
1514
1515 error:
1516     return VLC_EGENERIC;
1517 }
1518
1519
1520 /*****************************************************************************
1521  *
1522  *****************************************************************************/
1523 static void StreamRead( void *p_private, unsigned int i_size,
1524                         unsigned int i_truncated_bytes, struct timeval pts,
1525                         unsigned int duration )
1526 {
1527     live_track_t   *tk = (live_track_t*)p_private;
1528     demux_t        *p_demux = tk->p_demux;
1529     demux_sys_t    *p_sys = p_demux->p_sys;
1530     block_t        *p_block;
1531
1532     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1533
1534     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1535         (int64_t)pts.tv_usec;
1536
1537     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1538     i_pts &= INT64_C(0x00ffffffffffffff);
1539
1540     /* Retrieve NPT for this pts */
1541     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1542
1543     if( tk->b_quicktime && tk->p_es == NULL )
1544     {
1545         QuickTimeGenericRTPSource *qtRTPSource =
1546             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1547         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1548         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1549
1550         if( tk->fmt.i_cat == VIDEO_ES ) {
1551             if( qtState.sdAtomSize < 16 + 32 )
1552             {
1553                 /* invalid */
1554                 p_sys->event = 0xff;
1555                 tk->waiting = 0;
1556                 return;
1557             }
1558             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1559             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1560             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1561
1562             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1563             {
1564                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1565                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1566                                   + qtRTPSource->qtState.sdAtomSize;
1567                 while (pos+8 < endpos) {
1568                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1569                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1570                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1571                         atomLength > 8 &&
1572                         atomLength <= INT_MAX )
1573                     {
1574                         tk->fmt.i_extra = atomLength-8;
1575                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1576                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1577                         break;
1578                     }
1579                     pos += atomLength;
1580                 }
1581             }
1582             else
1583             {
1584                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1585                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1586                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1587             }
1588         }
1589         else {
1590             if( qtState.sdAtomSize < 4 )
1591             {
1592                 /* invalid */
1593                 p_sys->event = 0xff;
1594                 tk->waiting = 0;
1595                 return;
1596             }
1597             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1598         }
1599         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1600     }
1601
1602 #if 0
1603     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1604              i_size,
1605              pts.tv_sec * 1000000LL + pts.tv_usec );
1606 #endif
1607
1608     /* grow buffer if it looks like buffer is too small, but don't eat
1609      * up all the memory on strange streams */
1610     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1611     {
1612         void *p_tmp;
1613         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1614         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1615         tk->i_buffer *= 2;
1616         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1617         if( p_tmp == NULL )
1618         {
1619             msg_Warn( p_demux, "realloc failed" );
1620         }
1621         else
1622         {
1623             tk->p_buffer = (uint8_t*)p_tmp;
1624         }
1625     }
1626     if( i_size > tk->i_buffer )
1627     {
1628         msg_Warn( p_demux, "buffer overflow" );
1629     }
1630     /* FIXME could i_size be > buffer size ? */
1631     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1632         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1633     {
1634         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1635
1636         p_block = block_New( p_demux, i_size + 1 );
1637         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1638         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1639     }
1640     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1641     {
1642         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1643         uint32_t header = h261Source->lastSpecialHeader();
1644         p_block = block_New( p_demux, i_size + 4 );
1645         memcpy( p_block->p_buffer, &header, 4 );
1646         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1647
1648         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1649             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1650     }
1651     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1652     {
1653         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1654             msg_Warn( p_demux, "unsupported NAL type for H264" );
1655
1656         /* Normal NAL type */
1657         p_block = block_New( p_demux, i_size + 4 );
1658         p_block->p_buffer[0] = 0x00;
1659         p_block->p_buffer[1] = 0x00;
1660         p_block->p_buffer[2] = 0x00;
1661         p_block->p_buffer[3] = 0x01;
1662         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1663     }
1664     else if( tk->b_asf )
1665     {
1666         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1667         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1668
1669         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1670     }
1671     else
1672     {
1673         p_block = block_New( p_demux, i_size );
1674         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1675     }
1676
1677     if( p_sys->i_pcr < i_pts )
1678     {
1679         p_sys->i_pcr = i_pts;
1680     }
1681
1682     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1683     {
1684         p_block->i_pts = i_pts;
1685     }
1686
1687     /* Update our global npt value */
1688     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1689         p_sys->i_npt = tk->i_npt;
1690
1691     if( !tk->b_muxed )
1692     {
1693         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1694         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1695     }
1696
1697     if( tk->b_muxed )
1698     {
1699         stream_DemuxSend( tk->p_out_muxed, p_block );
1700     }
1701     else if( tk->b_asf )
1702     {
1703         stream_DemuxSend( p_sys->p_out_asf, p_block );
1704     }
1705     else
1706     {
1707         es_out_Send( p_demux->out, tk->p_es, p_block );
1708     }
1709
1710     /* warn that's ok */
1711     p_sys->event = 0xff;
1712
1713     /* we have read data */
1714     tk->waiting = 0;
1715     p_demux->p_sys->b_no_data = false;
1716     p_demux->p_sys->i_no_data_ti = 0;
1717
1718     if( i_pts > 0 && !tk->b_muxed )
1719     {
1720         tk->i_pts = i_pts;
1721     }
1722 }
1723
1724 /*****************************************************************************
1725  *
1726  *****************************************************************************/
1727 static void StreamClose( void *p_private )
1728 {
1729     live_track_t   *tk = (live_track_t*)p_private;
1730     demux_t        *p_demux = tk->p_demux;
1731     demux_sys_t    *p_sys = p_demux->p_sys;
1732
1733     msg_Dbg( p_demux, "StreamClose" );
1734
1735     p_sys->event = 0xff;
1736     p_demux->b_error = true;
1737 }
1738
1739
1740 /*****************************************************************************
1741  *
1742  *****************************************************************************/
1743 static void TaskInterrupt( void *p_private )
1744 {
1745     demux_t *p_demux = (demux_t*)p_private;
1746
1747     p_demux->p_sys->i_no_data_ti++;
1748
1749     /* Avoid lock */
1750     p_demux->p_sys->event = 0xff;
1751 }
1752
1753 /*****************************************************************************
1754  *
1755  *****************************************************************************/
1756 static void* TimeoutPrevention( void *p_data )
1757 {
1758     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1759
1760     for( ;; )
1761     {
1762         /* Voodoo (= no) thread safety here! *Ahem* */
1763         if( p_timeout->b_handle_keep_alive )
1764         {
1765             char *psz_bye = NULL;
1766             int canc = vlc_savecancel ();
1767
1768             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1769             vlc_restorecancel (canc);
1770         }
1771         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1772
1773         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1774     }
1775     assert(0); /* dead code */
1776 }
1777
1778 /*****************************************************************************
1779  *
1780  *****************************************************************************/
1781 static int b64_decode( char *dest, char *src );
1782
1783 static int ParseASF( demux_t *p_demux )
1784 {
1785     demux_sys_t    *p_sys = p_demux->p_sys;
1786
1787     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1788     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1789     char *psz_end;
1790     block_t *p_header;
1791
1792     /* Parse the asf header */
1793     if( psz_asf == NULL )
1794         return VLC_EGENERIC;
1795
1796     psz_asf += strlen( psz_marker );
1797     psz_asf = strdup( psz_asf );    /* Duplicate it */
1798     psz_end = strchr( psz_asf, '\n' );
1799
1800     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1801         *psz_end-- = '\0';
1802
1803     if( psz_asf >= psz_end )
1804     {
1805         free( psz_asf );
1806         return VLC_EGENERIC;
1807     }
1808
1809     /* Always smaller */
1810     p_header = block_New( p_demux, psz_end - psz_asf );
1811     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1812     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1813     if( p_header->i_buffer <= 0 )
1814     {
1815         free( psz_asf );
1816         return VLC_EGENERIC;
1817     }
1818
1819     /* Parse it to get packet size */
1820     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1821
1822     /* Send it to demuxer */
1823     stream_DemuxSend( p_sys->p_out_asf, p_header );
1824
1825     free( psz_asf );
1826     return VLC_SUCCESS;
1827 }
1828
1829
1830 static unsigned char* parseH264ConfigStr( char const* configStr,
1831                                           unsigned int& configSize )
1832 {
1833     char *dup, *psz;
1834     int i, i_records = 1;
1835
1836     if( configSize )
1837     configSize = 0;
1838
1839     if( configStr == NULL || *configStr == '\0' )
1840         return NULL;
1841
1842     psz = dup = strdup( configStr );
1843
1844     /* Count the number of comma's */
1845     for( psz = dup; *psz != '\0'; ++psz )
1846     {
1847         if( *psz == ',')
1848         {
1849             ++i_records;
1850             *psz = '\0';
1851         }
1852     }
1853
1854     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1855     psz = dup;
1856     for( i = 0; i < i_records; i++ )
1857     {
1858         cfg[configSize++] = 0x00;
1859         cfg[configSize++] = 0x00;
1860         cfg[configSize++] = 0x00;
1861         cfg[configSize++] = 0x01;
1862
1863         configSize += b64_decode( (char*)&cfg[configSize], psz );
1864         psz += strlen(psz)+1;
1865     }
1866
1867     free( dup );
1868     return cfg;
1869 }
1870
1871 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1872 static int b64_decode( char *dest, char *src )
1873 {
1874     const char *dest_start = dest;
1875     int  i_level;
1876     int  last = 0;
1877     int  b64[256] = {
1878         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1879         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1880         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1881         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1882         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1883         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1884         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1885         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1886         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1887         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1888         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1889         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1890         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1891         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1892         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1893         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1894         };
1895
1896     for( i_level = 0; *src != '\0'; src++ )
1897     {
1898         int  c;
1899
1900         c = b64[(unsigned int)*src];
1901         if( c == -1 )
1902         {
1903             continue;
1904         }
1905
1906         switch( i_level )
1907         {
1908             case 0:
1909                 i_level++;
1910                 break;
1911             case 1:
1912                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1913                 i_level++;
1914                 break;
1915             case 2:
1916                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1917                 i_level++;
1918                 break;
1919             case 3:
1920                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1921                 i_level = 0;
1922         }
1923         last = c;
1924     }
1925
1926     *dest = '\0';
1927
1928     return dest - dest_start;
1929 }