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_interface.h>
  46 #include <vlc_network.h>
  47 #include <vlc_url.h>
  48
  49 #include <iostream>
  50 #include <limits.h>
  51 #include <assert.h>
  52
  53
  54 #if defined( WIN32 )
  55 #   include <winsock2.h>
  56 #endif
  57
  58 #include "UsageEnvironment.hh"
  59 #include "BasicUsageEnvironment.hh"
  60 #include "GroupsockHelper.hh"
  61 #include "liveMedia.hh"
  62
  63 extern "C" {
  64 #include "../access/mms/asf.h"  /* Who said ugly ? */
  65 }
  66
  67 using namespace std;
  68
  69 /*****************************************************************************
  70  * Module descriptor
  71  *****************************************************************************/
  72 static int  Open ( vlc_object_t * );
  73 static void Close( vlc_object_t * );
  74
  75 #define CACHING_TEXT N_("Caching value (ms)")
  76 #define CACHING_LONGTEXT N_( \
  77     "Allows you to modify the default caching value for RTSP streams. This " \
  78     "value should be set in millisecond units." )
  79
  80 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  81 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  82     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  83     "for communication. In this mode you cannot connect to normal RTSP servers." )
  84
  85 #define USER_TEXT N_("RTSP user name")
  86 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  87     "be used for authenticating the connection.")
  88 #define PASS_TEXT N_("RTSP password")
  89 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  90     "used for the connection.")
  91
  92 vlc_module_begin ()
  93     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
  94     set_capability( "demux", 50 )
  95     set_shortname( "RTP/RTSP")
  96     set_callbacks( Open, Close )
  97     add_shortcut( "live" )
  98     add_shortcut( "livedotcom" )
  99     set_category( CAT_INPUT )
 100     set_subcategory( SUBCAT_INPUT_DEMUX )
 101
 102     add_submodule ()
 103         set_description( N_("RTSP/RTP access and demux") )
 104         add_shortcut( "rtsp" )
 105         add_shortcut( "sdp" )
 106         set_capability( "access_demux", 0 )
 107         set_callbacks( Open, Close )
 108         add_bool( "rtsp-tcp", 0, NULL,
 109                   N_("Use RTP over RTSP (TCP)"),
 110                   N_("Use RTP over RTSP (TCP)"), true )
 111         add_integer( "rtp-client-port", -1, NULL,
 112                   N_("Client port"),
 113                   N_("Port to use for the RTP source of the session"), true )
 114         add_bool( "rtsp-mcast", false, NULL,
 115                   N_("Force multicast RTP via RTSP"),
 116                   N_("Force multicast RTP via RTSP"), true )
 117         add_bool( "rtsp-http", 0, NULL,
 118                   N_("Tunnel RTSP and RTP over HTTP"),
 119                   N_("Tunnel RTSP and RTP over HTTP"), true )
 120         add_integer( "rtsp-http-port", 80, NULL,
 121                   N_("HTTP tunnel port"),
 122                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 123                   true )
 124         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 125                     CACHING_TEXT, CACHING_LONGTEXT, true )
 126         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 127                     KASENNA_LONGTEXT, true )
 128         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 129                     USER_LONGTEXT, true )
 130         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 131                     PASS_LONGTEXT, true )
 132 vlc_module_end ()
 133
 134
 135 /*****************************************************************************
 136  * Local prototypes
 137  *****************************************************************************/
 138
 139 typedef struct
 140 {
 141     demux_t         *p_demux;
 142     MediaSubsession *sub;
 143
 144     es_format_t     fmt;
 145     es_out_id_t     *p_es;
 146
 147     bool            b_muxed;
 148     bool            b_quicktime;
 149     bool            b_asf;
 150     stream_t        *p_out_muxed;    /* for muxed stream */
 151
 152     uint8_t         *p_buffer;
 153     unsigned int    i_buffer;
 154
 155     bool            b_rtcp_sync;
 156     char            waiting;
 157     int64_t         i_pts;
 158     float           i_npt;
 159
 160 } live_track_t;
 161
 162 struct timeout_thread_t
 163 {
 164     demux_sys_t  *p_sys;
 165     vlc_thread_t handle;
 166     bool         b_handle_keep_alive;
 167 };
 168
 169 struct demux_sys_t
 170 {
 171     char            *p_sdp;    /* XXX mallocated */
 172     char            *psz_path; /* URL-encoded path */
 173     vlc_url_t       url;
 174
 175     MediaSession     *ms;
 176     TaskScheduler    *scheduler;
 177     UsageEnvironment *env ;
 178     RTSPClient       *rtsp;
 179
 180     /* */
 181     int              i_track;
 182     live_track_t     **track;   /* XXX mallocated */
 183
 184     /* Weird formats */
 185     asf_header_t     asfh;
 186     stream_t         *p_out_asf;
 187     bool             b_real;
 188
 189     /* */
 190     int64_t          i_pcr; /* The clock */
 191     float            i_npt;
 192     float            i_npt_length;
 193     float            i_npt_start;
 194
 195     /* timeout thread information */
 196     int              i_timeout;     /* session timeout value in seconds */
 197     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 198     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 199
 200     /* */
 201     bool             b_force_mcast;
 202     bool             b_multicast;   /* if one of the tracks is multicasted */
 203     bool             b_no_data;     /* if we never received any data */
 204     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 205
 206     char             event;
 207
 208     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 209 };
 210
 211 static int Demux  ( demux_t * );
 212 static int Control( demux_t *, int, va_list );
 213
 214 static int Connect      ( demux_t * );
 215 static int SessionsSetup( demux_t * );
 216 static int Play         ( demux_t *);
 217 static int ParseASF     ( demux_t * );
 218 static int RollOverTcp  ( demux_t * );
 219
 220 static void StreamRead  ( void *, unsigned int, unsigned int,
 221                           struct timeval, unsigned int );
 222 static void StreamClose ( void * );
 223 static void TaskInterrupt( void * );
 224
 225 static void* TimeoutPrevention( void * );
 226
 227 static unsigned char* parseH264ConfigStr( char const* configStr,
 228                                           unsigned int& configSize );
 229
 230 /*****************************************************************************
 231  * DemuxOpen:
 232  *****************************************************************************/
 233 static int  Open ( vlc_object_t *p_this )
 234 {
 235     demux_t     *p_demux = (demux_t*)p_this;
 236     demux_sys_t *p_sys = NULL;
 237
 238     int i, i_return;
 239     int i_error = VLC_EGENERIC;
 240
 241     if( p_demux->s )
 242     {
 243         /* See if it looks like a SDP
 244            v, o, s fields are mandatory and in this order */
 245         const uint8_t *p_peek;
 246         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 247
 248         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 249             memcmp( p_peek, "v=0\n", 4 ) &&
 250             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 251         {
 252             return VLC_EGENERIC;
 253         }
 254     }
 255     else
 256     {
 257         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 258     }
 259
 260     p_demux->pf_demux  = Demux;
 261     p_demux->pf_control= Control;
 262     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 263     if( !p_sys ) return VLC_ENOMEM;
 264
 265     p_sys->p_sdp = NULL;
 266     p_sys->scheduler = NULL;
 267     p_sys->env = NULL;
 268     p_sys->ms = NULL;
 269     p_sys->rtsp = NULL;
 270     p_sys->i_track = 0;
 271     p_sys->track   = NULL;
 272     p_sys->i_pcr = 0;
 273     p_sys->i_npt = 0.;
 274     p_sys->i_npt_start = 0.;
 275     p_sys->i_npt_length = 0.;
 276     p_sys->p_out_asf = NULL;
 277     p_sys->b_no_data = true;
 278     p_sys->i_no_data_ti = 0;
 279     p_sys->p_timeout = NULL;
 280     p_sys->i_timeout = 0;
 281     p_sys->b_timeout_call = false;
 282     p_sys->b_multicast = false;
 283     p_sys->b_real = false;
 284     p_sys->psz_path = strdup( p_demux->psz_path );
 285     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 286     p_sys->b_get_param = false;
 287
 288     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 289     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 290
 291     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 292     {
 293         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 294         goto error;
 295     }
 296     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 297     {
 298         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 299         goto error;
 300     }
 301
 302     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 303     {
 304         char *p = p_sys->psz_path;
 305         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 306     }
 307
 308     if( p_demux->s != NULL )
 309     {
 310         /* Gather the complete sdp file */
 311         int     i_sdp       = 0;
 312         int     i_sdp_max   = 1000;
 313         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 314
 315         if( !p_sdp )
 316         {
 317             i_error = VLC_ENOMEM;
 318             goto error;
 319         }
 320
 321         for( ;; )
 322         {
 323             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 324                                       i_sdp_max - i_sdp - 1 );
 325
 326             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 327             {
 328                 free( p_sdp );
 329                 goto error;
 330             }
 331
 332             if( i_read < 0 )
 333             {
 334                 msg_Err( p_demux, "failed to read SDP" );
 335                 free( p_sdp );
 336                 goto error;
 337             }
 338
 339             i_sdp += i_read;
 340
 341             if( i_read < i_sdp_max - i_sdp - 1 )
 342             {
 343                 p_sdp[i_sdp] = '\0';
 344                 break;
 345             }
 346
 347             i_sdp_max += 1000;
 348             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 349         }
 350         p_sys->p_sdp = (char*)p_sdp;
 351     }
 352     else if( ( p_demux->s == NULL ) &&
 353              !strcasecmp( p_demux->psz_access, "sdp" ) )
 354     {
 355         /* sdp:// link from SAP */
 356         p_sys->p_sdp = strdup( p_sys->psz_path );
 357     }
 358     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 359     {
 360         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 361         goto error;
 362     }
 363
 364     if( p_sys->p_sdp == NULL )
 365     {
 366         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 367         i_error = VLC_ENOMEM;
 368         goto error;
 369     }
 370
 371     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 372     {
 373         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 374         goto error;
 375     }
 376
 377     if( p_sys->b_real ) goto error;
 378
 379     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 380         goto error;
 381
 382     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 383     {
 384         msg_Err( p_demux, "cannot find a usable asf header" );
 385         /* TODO Clean tracks */
 386         goto error;
 387     }
 388
 389     if( p_sys->i_track <= 0 )
 390         goto error;
 391
 392     return VLC_SUCCESS;
 393
 394 error:
 395     for( i = 0; i < p_sys->i_track; i++ )
 396     {
 397         live_track_t *tk = p_sys->track[i];
 398
 399         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 400         es_format_Clean( &tk->fmt );
 401         free( tk->p_buffer );
 402         free( tk );
 403     }
 404
 405     if( p_sys->i_track ) free( p_sys->track );
 406     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 407     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 408     if( p_sys->p_timeout )
 409     {
 410         vlc_cancel( p_sys->p_timeout->handle );
 411         vlc_join( p_sys->p_timeout->handle, NULL );
 412         free( p_sys->p_timeout );
 413     }
 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     delete p_sys->scheduler;
 418     free( p_sys->p_sdp );
 419     free( p_sys->psz_path );
 420
 421     vlc_UrlClean( &p_sys->url );
 422
 423     free( p_sys );
 424     return i_error;
 425 }
 426
 427 /*****************************************************************************
 428  * DemuxClose:
 429  *****************************************************************************/
 430 static void Close( vlc_object_t *p_this )
 431 {
 432     demux_t *p_demux = (demux_t*)p_this;
 433     demux_sys_t *p_sys = p_demux->p_sys;
 434     int i;
 435
 436     for( i = 0; i < p_sys->i_track; i++ )
 437     {
 438         live_track_t *tk = p_sys->track[i];
 439
 440         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 441         es_format_Clean( &tk->fmt );
 442         free( tk->p_buffer );
 443         free( tk );
 444     }
 445
 446     if( p_sys->i_track ) free( p_sys->track );
 447     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 448     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 449     if( p_sys->p_timeout )
 450     {
 451         vlc_cancel( p_sys->p_timeout->handle );
 452         vlc_join( p_sys->p_timeout->handle, NULL );
 453         free( p_sys->p_timeout );
 454     }
 455     if( p_sys->ms ) Medium::close( p_sys->ms );
 456     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 457     if( p_sys->env ) p_sys->env->reclaim();
 458     delete p_sys->scheduler;
 459     free( p_sys->p_sdp );
 460     free( p_sys->psz_path );
 461
 462     vlc_UrlClean( &p_sys->url );
 463
 464     free( p_sys );
 465 }
 466
 467 /*****************************************************************************
 468  * Connect: connects to the RTSP server to setup the session DESCRIBE
 469  *****************************************************************************/
 470 static int Connect( demux_t *p_demux )
 471 {
 472     demux_sys_t *p_sys = p_demux->p_sys;
 473     Authenticator authenticator;
 474     bool b_firstpass  = true;
 475     char *psz_user    = NULL;
 476     char *psz_pwd     = NULL;
 477     char *psz_url     = NULL;
 478     char *psz_options = NULL;
 479     char *p_sdp       = NULL;
 480     int  i_http_port  = 0;
 481     int  i_ret        = VLC_SUCCESS;
 482     int timeout;
 483
 484     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 485     if( p_sys->url.psz_username || p_sys->url.psz_password )
 486     {
 487         int err;
 488         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 489                         p_sys->url.i_port, p_sys->url.psz_path );
 490         if( err == -1 ) return VLC_ENOMEM;
 491
 492         psz_user = strdup( p_sys->url.psz_username );
 493         psz_pwd  = strdup( p_sys->url.psz_password );
 494     }
 495     else
 496     {
 497         int err;
 498         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 499         if( err == -1 ) return VLC_ENOMEM;
 500
 501         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 502         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 503     }
 504
 505 createnew:
 506     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 507     {
 508         free( psz_user );
 509         free( psz_pwd );
 510         free( psz_url );
 511         return VLC_EGENERIC;
 512     }
 513
 514     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 515         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 516
 517     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 518           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 519           "VLC media player", i_http_port ) ) == NULL )
 520     {
 521         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 522                  p_sys->env->getResultMsg() );
 523         free( psz_user );
 524         free( psz_pwd );
 525         free( psz_url );
 526         return VLC_EGENERIC;
 527     }
 528
 529     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 530      * Appending _KA to the string should be enough to enable this feature,
 531      * however, there is a bug where the _KA doesn't get parsed from the
 532      * default User-Agent as created by VLC/Live555 code. This is probably due
 533      * to spaces in the string or the string being too long. Here we override
 534      * the default string with a more compact version.
 535      */
 536     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 537     {
 538         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 539     }
 540
 541 describe:
 542     authenticator.setUsernameAndPassword( (const char*)psz_user,
 543                                           (const char*)psz_pwd );
 544
 545     timeout = var_CreateGetInteger(p_demux, "ipv4-timeout");
 546     timeout /= 1000;
 547
 548 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 549     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 550                                                &authenticator, timeout );
 551 #else
 552     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 553                                                &authenticator );
 554 #endif
 555     if( psz_options == NULL && authenticator.realm() != NULL )
 556     {
 557         // try again, with the realm set this time
 558 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 559         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 560                                                &authenticator, timeout );
 561 #else
 562         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 563                                                &authenticator );
 564 #endif
 565     }
 566     if( psz_options )
 567     {
 568         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 569 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 570         p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 571                                           var_GetBool( p_demux, "rtsp-kasenna" ), timeout );
 572 #else
 573         p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 574                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
 575 #endif
 576
 577     }
 578     delete [] psz_options;
 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             int i_result;
 610             msg_Dbg( p_demux, "authentication failed" );
 611
 612             free( psz_user );
 613             free( psz_pwd );
 614             psz_user = psz_pwd = NULL;
 615
 616             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 617                            _("Please enter a valid login name and a password."),
 618                                                    &psz_user, &psz_pwd );
 619             if( i_result == DIALOG_OK_YES )
 620             {
 621                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 622                          psz_user, psz_pwd );
 623                 goto describe;
 624             }
 625         }
 626         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 627         {
 628             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 629             vlc_value_t val;
 630             val.b_bool = true;
 631             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 632             var_Set( p_demux, "rtsp-http", val );
 633             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 634             p_sys->rtsp = NULL;
 635             goto createnew;
 636         }
 637         else
 638         {
 639             msg_Dbg( p_demux, "connection timeout" );
 640             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 641             p_sys->rtsp = NULL;
 642         }
 643         i_ret = VLC_EGENERIC;
 644     }
 645
 646     /* malloc-ated copy */
 647     free( psz_url );
 648     free( psz_user );
 649     free( psz_pwd );
 650
 651     free( p_sys->p_sdp );
 652     p_sys->p_sdp = NULL;
 653     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 654     delete[] p_sdp;
 655
 656     return i_ret;
 657 }
 658
 659 /*****************************************************************************
 660  * SessionsSetup: prepares the subsessions and does the SETUP
 661  *****************************************************************************/
 662 static int SessionsSetup( demux_t *p_demux )
 663 {
 664     demux_sys_t             *p_sys  = p_demux->p_sys;
 665     MediaSubsessionIterator *iter   = NULL;
 666     MediaSubsession         *sub    = NULL;
 667
 668     bool           b_rtsp_tcp = false;
 669     int            i_client_port;
 670     int            i_return = VLC_SUCCESS;
 671     unsigned int   i_buffer = 0;
 672     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 673
 674     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 675                     var_GetBool( p_demux, "rtsp-http" );
 676     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 677
 678     /* Create the session from the SDP */
 679     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 680     {
 681         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 682             p_sys->env->getResultMsg() );
 683         return VLC_EGENERIC;
 684     }
 685
 686     /* Initialise each media subsession */
 687     iter = new MediaSubsessionIterator( *p_sys->ms );
 688     while( ( sub = iter->next() ) != NULL )
 689     {
 690         Boolean bInit;
 691         live_track_t *tk;
 692
 693         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 694         {
 695             delete iter;
 696             return VLC_EGENERIC;
 697         }
 698
 699         /* Value taken from mplayer */
 700         if( !strcmp( sub->mediumName(), "audio" ) )
 701             i_buffer = 100000;
 702         else if( !strcmp( sub->mediumName(), "video" ) )
 703             i_buffer = 2000000;
 704         else continue;
 705
 706         if( i_client_port != -1 )
 707         {
 708             sub->setClientPortNum( i_client_port );
 709             i_client_port += 2;
 710         }
 711
 712         if( strcasestr( sub->codecName(), "REAL" ) )
 713         {
 714             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 715             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 716             continue;
 717         }
 718
 719         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 720             bInit = sub->initiate( 4 ); /* Constant ? */
 721         else
 722             bInit = sub->initiate();
 723
 724         if( !bInit )
 725         {
 726             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 727                       sub->mediumName(), sub->codecName(),
 728                       p_sys->env->getResultMsg() );
 729         }
 730         else
 731         {
 732             if( sub->rtpSource() != NULL )
 733             {
 734                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 735
 736                 /* Increase the buffer size */
 737                 if( i_buffer > 0 )
 738                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 739
 740                 /* Increase the RTP reorder timebuffer just a bit */
 741                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 742             }
 743             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 744                      sub->codecName() );
 745
 746             /* Issue the SETUP */
 747             if( p_sys->rtsp )
 748             {
 749                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 750                                            b_rtsp_tcp ? True : False,
 751                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 752                 {
 753                     /* if we get an unsupported transport error, toggle TCP use and try again */
 754                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 755                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 756                                            b_rtsp_tcp ? False : True,
 757                                            False ) )
 758                     {
 759                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 760                                  sub->codecName(), p_sys->env->getResultMsg() );
 761                         continue;
 762                     }
 763                 }
 764             }
 765
 766             /* Check if we will receive data from this subsession for this track */
 767             if( sub->readSource() == NULL ) continue;
 768             if( !p_sys->b_multicast )
 769             {
 770                 /* Check, because we need diff. rollover behaviour for multicast */
 771                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 772             }
 773
 774             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 775             if( !tk )
 776             {
 777                 delete iter;
 778                 return VLC_ENOMEM;
 779             }
 780             tk->p_demux     = p_demux;
 781             tk->sub         = sub;
 782             tk->p_es        = NULL;
 783             tk->b_quicktime = false;
 784             tk->b_asf       = false;
 785             tk->b_muxed     = false;
 786             tk->p_out_muxed = NULL;
 787             tk->waiting     = 0;
 788             tk->b_rtcp_sync = false;
 789             tk->i_pts       = 0;
 790             tk->i_npt       = 0.;
 791             tk->i_buffer    = 65536;
 792             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 793             if( !tk->p_buffer )
 794             {
 795                 free( tk );
 796                 delete iter;
 797                 return VLC_ENOMEM;
 798             }
 799
 800             /* Value taken from mplayer */
 801             if( !strcmp( sub->mediumName(), "audio" ) )
 802             {
 803                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 804                 tk->fmt.audio.i_channels = sub->numChannels();
 805                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 806
 807                 if( !strcmp( sub->codecName(), "MPA" ) ||
 808                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 809                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 810                 {
 811                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 812                     tk->fmt.audio.i_rate = 0;
 813                 }
 814                 else if( !strcmp( sub->codecName(), "AC3" ) )
 815                 {
 816                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 817                     tk->fmt.audio.i_rate = 0;
 818                 }
 819                 else if( !strcmp( sub->codecName(), "L16" ) )
 820                 {
 821                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 822                     tk->fmt.audio.i_bitspersample = 16;
 823                 }
 824                 else if( !strcmp( sub->codecName(), "L8" ) )
 825                 {
 826                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 827                     tk->fmt.audio.i_bitspersample = 8;
 828                 }
 829                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 830                 {
 831                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 832                 }
 833                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 834                 {
 835                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 836                 }
 837                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 838                 {
 839                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 840                     tk->fmt.audio.i_rate = 8000;
 841                     tk->fmt.audio.i_channels = 1;
 842                     if( !strcmp( sub->codecName()+5, "40" ) )
 843                         tk->fmt.i_bitrate = 40000;
 844                     else if( !strcmp( sub->codecName()+5, "32" ) )
 845                         tk->fmt.i_bitrate = 32000;
 846                     else if( !strcmp( sub->codecName()+5, "24" ) )
 847                         tk->fmt.i_bitrate = 24000;
 848                     else if( !strcmp( sub->codecName()+5, "16" ) )
 849                         tk->fmt.i_bitrate = 16000;
 850                 }
 851                 else if( !strcmp( sub->codecName(), "AMR" ) )
 852                 {
 853                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 854                 }
 855                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 856                 {
 857                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 858                 }
 859                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 860                 {
 861                     unsigned int i_extra;
 862                     uint8_t      *p_extra;
 863
 864                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 865
 866                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 867                                                              i_extra ) ) )
 868                     {
 869                         tk->fmt.i_extra = i_extra;
 870                         tk->fmt.p_extra = malloc( i_extra );
 871                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 872                         delete[] p_extra;
 873                     }
 874                     /* Because the "faad" decoder does not handle the LATM data length field
 875                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 876                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 877                 }
 878                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 879                 {
 880                     unsigned int i_extra;
 881                     uint8_t      *p_extra;
 882
 883                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 884
 885                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 886                                                            i_extra ) ) )
 887                     {
 888                         tk->fmt.i_extra = i_extra;
 889                         tk->fmt.p_extra = malloc( i_extra );
 890                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 891                         delete[] p_extra;
 892                     }
 893                 }
 894                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 895                 {
 896                     tk->b_asf = true;
 897                     if( p_sys->p_out_asf == NULL )
 898                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 899                                                             p_demux->out );
 900                 }
 901                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 902                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 903                 {
 904                     tk->b_quicktime = true;
 905                 }
 906                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 907                 {
 908                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 909                     if ( sub->rtpTimestampFrequency() )
 910                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 911                     else
 912                     {
 913                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 914                         tk->fmt.audio.i_rate = 8000;
 915                     }
 916                 }
 917             }
 918             else if( !strcmp( sub->mediumName(), "video" ) )
 919             {
 920                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 921                 if( !strcmp( sub->codecName(), "MPV" ) )
 922                 {
 923                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 924                 }
 925                 else if( !strcmp( sub->codecName(), "H263" ) ||
 926                          !strcmp( sub->codecName(), "H263-1998" ) ||
 927                          !strcmp( sub->codecName(), "H263-2000" ) )
 928                 {
 929                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 930                 }
 931                 else if( !strcmp( sub->codecName(), "H261" ) )
 932                 {
 933                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 934                 }
 935                 else if( !strcmp( sub->codecName(), "H264" ) )
 936                 {
 937                     unsigned int i_extra = 0;
 938                     uint8_t      *p_extra = NULL;
 939
 940                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 941                     tk->fmt.b_packetized = false;
 942
 943                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 944                                                     i_extra ) ) )
 945                     {
 946                         tk->fmt.i_extra = i_extra;
 947                         tk->fmt.p_extra = malloc( i_extra );
 948                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 949
 950                         delete[] p_extra;
 951                     }
 952                 }
 953                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 954                 {
 955                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 956                 }
 957                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 958                 {
 959                     unsigned int i_extra;
 960                     uint8_t      *p_extra;
 961
 962                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 963
 964                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 965                                                            i_extra ) ) )
 966                     {
 967                         tk->fmt.i_extra = i_extra;
 968                         tk->fmt.p_extra = malloc( i_extra );
 969                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 970                         delete[] p_extra;
 971                     }
 972                 }
 973                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 974                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 975                          !strcmp( sub->codecName(), "X-QDM" ) ||
 976                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 977                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 978                 {
 979                     tk->b_quicktime = true;
 980                 }
 981                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 982                 {
 983                     tk->b_muxed = true;
 984                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 985                 }
 986                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 987                          !strcmp( sub->codecName(), "MP1S" ) )
 988                 {
 989                     tk->b_muxed = true;
 990                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 991                                                        p_demux->out );
 992                 }
 993                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 994                 {
 995                     tk->b_asf = true;
 996                     if( p_sys->p_out_asf == NULL )
 997                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 998                                                             p_demux->out );;
 999                 }
1000             }
1001
1002             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
1003             {
1004                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1005             }
1006
1007             if( sub->rtcpInstance() != NULL )
1008             {
1009                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1010             }
1011
1012             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1013             {
1014                 /* Append */
1015                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1016                 p_sys->track[p_sys->i_track++] = tk;
1017             }
1018             else
1019             {
1020                 /* BUG ??? */
1021                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1022                 es_format_Clean( &tk->fmt );
1023                 free( tk );
1024             }
1025         }
1026     }
1027     delete iter;
1028     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1029
1030     /* Retrieve the starttime if possible */
1031     p_sys->i_npt_start = p_sys->ms->playStartTime();
1032
1033     /* Retrieve the duration if possible */
1034     p_sys->i_npt_length = p_sys->ms->playEndTime();
1035
1036     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1037     return i_return;
1038 }
1039
1040 /*****************************************************************************
1041  * Play: starts the actual playback of the stream
1042  *****************************************************************************/
1043 static int Play( demux_t *p_demux )
1044 {
1045     demux_sys_t *p_sys = p_demux->p_sys;
1046
1047     if( p_sys->rtsp )
1048     {
1049         /* The PLAY */
1050         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1051         {
1052             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1053             return VLC_EGENERIC;
1054         }
1055
1056         /* Retrieve the timeout value and set up a timeout prevention thread */
1057         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1058         if( p_sys->i_timeout <= 0 )
1059             p_sys->i_timeout = 60; /* default value from RFC2326 */
1060
1061         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1062         if( !p_sys->p_timeout && p_sys->b_get_param )
1063         {
1064             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1065             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1066             if( p_sys->p_timeout )
1067             {
1068                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1069                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1070                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1071                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1072                 {
1073                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1074                     free( p_sys->p_timeout );
1075                     p_sys->p_timeout = NULL;
1076                 }
1077                 else
1078                     msg_Dbg( p_demux, "spawned timeout thread" );
1079             }
1080             else
1081                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1082         }
1083     }
1084     p_sys->i_pcr = 0;
1085
1086     /* Retrieve the starttime if possible */
1087     p_sys->i_npt_start = p_sys->ms->playStartTime();
1088     p_sys->i_npt_length = p_sys->ms->playEndTime();
1089
1090     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1091     return VLC_SUCCESS;
1092 }
1093
1094
1095 /*****************************************************************************
1096  * Demux:
1097  *****************************************************************************/
1098 static int Demux( demux_t *p_demux )
1099 {
1100     demux_sys_t    *p_sys = p_demux->p_sys;
1101     TaskToken      task;
1102
1103     bool            b_send_pcr = true;
1104     int64_t         i_pcr = 0;
1105     int             i;
1106
1107     /* Check if we need to send the server a Keep-A-Live signal */
1108     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1109     {
1110         char *psz_bye = NULL;
1111         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1112         p_sys->b_timeout_call = false;
1113     }
1114
1115     for( i = 0; i < p_sys->i_track; i++ )
1116     {
1117         live_track_t *tk = p_sys->track[i];
1118
1119         if( tk->b_asf || tk->b_muxed )
1120             b_send_pcr = false;
1121 #if 0
1122         if( i_pcr == 0 )
1123         {
1124             i_pcr = tk->i_pts;
1125         }
1126         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1127         {
1128             i_pcr = tk->i_pts ;
1129         }
1130 #endif
1131     }
1132     if( p_sys->i_pcr > 0 )
1133     {
1134         if( b_send_pcr )
1135             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1136     }
1137
1138     /* First warn we want to read data */
1139     p_sys->event = 0;
1140     for( i = 0; i < p_sys->i_track; i++ )
1141     {
1142         live_track_t *tk = p_sys->track[i];
1143
1144         if( tk->waiting == 0 )
1145         {
1146             tk->waiting = 1;
1147             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1148                                           StreamRead, tk, StreamClose, tk );
1149         }
1150     }
1151     /* Create a task that will be called if we wait more than 300ms */
1152     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1153
1154     /* Do the read */
1155     p_sys->scheduler->doEventLoop( &p_sys->event );
1156
1157     /* remove the task */
1158     p_sys->scheduler->unscheduleDelayedTask( task );
1159
1160     /* Check for gap in pts value */
1161     for( i = 0; i < p_sys->i_track; i++ )
1162     {
1163         live_track_t *tk = p_sys->track[i];
1164
1165         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1166             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1167         {
1168             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1169
1170             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1171             tk->b_rtcp_sync = true;
1172             /* reset PCR */
1173             tk->i_pts = 0;
1174             tk->i_npt = 0.;
1175             p_sys->i_pcr = 0;
1176             p_sys->i_npt = 0.;
1177             i_pcr = 0;
1178         }
1179     }
1180
1181     if( p_sys->b_multicast && p_sys->b_no_data &&
1182         ( p_sys->i_no_data_ti > 120 ) )
1183     {
1184         /* FIXME Make this configurable
1185         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1186         return 0;
1187         */
1188     }
1189     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1190              ( p_sys->i_no_data_ti > 34 ) )
1191     {
1192         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1193                                 var_GetBool( p_demux, "rtsp-http" );
1194
1195         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1196         {
1197             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1198             if( RollOverTcp( p_demux ) )
1199             {
1200                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1201                 return 0;
1202             }
1203             return 1;
1204         }
1205         msg_Err( p_demux, "no data received in 10s, aborting" );
1206         return 0;
1207     }
1208     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1209     {
1210         /* EOF ? */
1211         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1212         return 0;
1213     }
1214     return p_demux->b_error ? 0 : 1;
1215 }
1216
1217 /*****************************************************************************
1218  * Control:
1219  *****************************************************************************/
1220 static int Control( demux_t *p_demux, int i_query, va_list args )
1221 {
1222     demux_sys_t *p_sys = p_demux->p_sys;
1223     int64_t *pi64, i64;
1224     double  *pf, f;
1225     bool *pb, *pb2, b_bool;
1226     int *pi_int;
1227
1228     switch( i_query )
1229     {
1230         case DEMUX_GET_TIME:
1231             pi64 = (int64_t*)va_arg( args, int64_t * );
1232             if( p_sys->i_npt > 0 )
1233             {
1234                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1235                 return VLC_SUCCESS;
1236             }
1237             return VLC_EGENERIC;
1238
1239         case DEMUX_GET_LENGTH:
1240             pi64 = (int64_t*)va_arg( args, int64_t * );
1241             if( p_sys->i_npt_length > 0 )
1242             {
1243                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1244                 return VLC_SUCCESS;
1245             }
1246             return VLC_EGENERIC;
1247
1248         case DEMUX_GET_POSITION:
1249             pf = (double*)va_arg( args, double* );
1250             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1251             {
1252                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1253                 return VLC_SUCCESS;
1254             }
1255             return VLC_EGENERIC;
1256
1257         case DEMUX_SET_POSITION:
1258         case DEMUX_SET_TIME:
1259             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1260             {
1261                 int i;
1262                 float time;
1263
1264                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1265                 {
1266                     i64 = (int64_t)va_arg( args, int64_t );
1267                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1268                 }
1269                 else if( i_query == DEMUX_SET_TIME )
1270                     return VLC_EGENERIC;
1271                 else
1272                 {
1273                     f = (double)va_arg( args, double );
1274                     time = f * (double)p_sys->i_npt_length;   /* in second */
1275                 }
1276
1277                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1278                 {
1279                     msg_Err( p_demux, "PLAY failed %s",
1280                         p_sys->env->getResultMsg() );
1281                     return VLC_EGENERIC;
1282                 }
1283                 p_sys->i_pcr = 0;
1284
1285                 /* Retrieve RTP-Info values */
1286                 for( i = 0; i < p_sys->i_track; i++ )
1287                 {
1288                     p_sys->track[i]->b_rtcp_sync = false;
1289                     p_sys->track[i]->i_pts = 0;
1290                 }
1291
1292                 /* Retrieve the starttime if possible */
1293                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1294
1295                 /* Retrieve the duration if possible */
1296                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1297
1298                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1299                 return VLC_SUCCESS;
1300             }
1301             return VLC_EGENERIC;
1302
1303         /* Special for access_demux */
1304         case DEMUX_CAN_PAUSE:
1305         case DEMUX_CAN_SEEK:
1306             pb = (bool*)va_arg( args, bool * );
1307             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1308                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1309                 *pb = true;
1310             else
1311                 *pb = false;
1312             return VLC_SUCCESS;
1313
1314         case DEMUX_CAN_CONTROL_PACE:
1315             pb = (bool*)va_arg( args, bool * );
1316
1317 #if 1       /* Disable for now until we have a clock synchro algo
1318              * which works with something else than MPEG over UDP */
1319             *pb = false;
1320 #else
1321             *pb = true;
1322 #endif
1323             return VLC_SUCCESS;
1324
1325         case DEMUX_CAN_CONTROL_RATE:
1326             pb = (bool*)va_arg( args, bool * );
1327             pb2 = (bool*)va_arg( args, bool * );
1328
1329             *pb = (p_sys->rtsp != NULL) &&
1330                     (p_sys->i_npt_length > 0) &&
1331                     !var_GetBool( p_demux, "rtsp-kasenna" );
1332             *pb2 = false;
1333             return VLC_SUCCESS;
1334
1335         case DEMUX_SET_RATE:
1336         {
1337             double f_scale, f_old_scale;
1338
1339             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1340                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1341                 return VLC_EGENERIC;
1342
1343             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1344              * supports Scale should:
1345              *
1346              * "The server should try to approximate the viewing rate, but may
1347              *  restrict the range of scale values that it supports. The response
1348              *  MUST contain the actual scale value chosen by the server."
1349              *
1350              * Scale = 1 indicates normal play
1351              * Scale > 1 indicates fast forward
1352              * Scale < 1 && Scale > 0 indicates slow motion
1353              * Scale < 0 value indicates rewind
1354              */
1355
1356             pi_int = (int*)va_arg( args, int * );
1357             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1358             f_old_scale = p_sys->ms->scale();
1359
1360             /* Passing -1 for the start and end time will mean liveMedia won't
1361              * create a Range: section for the RTSP message. The server should
1362              * pick up from the current position */
1363             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1364             {
1365                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1366                         p_sys->env->getResultMsg() );
1367                 return VLC_EGENERIC;
1368             }
1369
1370             if( p_sys->ms->scale() == f_old_scale )
1371             {
1372                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1373                           p_sys->ms->scale() );
1374                 return VLC_EGENERIC;
1375             }
1376
1377             /* ReSync the stream */
1378             p_sys->i_npt_start = 0;
1379             p_sys->i_pcr = 0;
1380             p_sys->i_npt = 0.0;
1381
1382             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1383             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1384             return VLC_SUCCESS;
1385         }
1386
1387         case DEMUX_SET_PAUSE_STATE:
1388         {
1389             int i;
1390
1391             b_bool = (bool)va_arg( args, int );
1392             if( p_sys->rtsp == NULL )
1393                 return VLC_EGENERIC;
1394
1395             /* FIXME */
1396             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1397                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1398                        -1 ) ) )
1399             {
1400                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1401                     return VLC_EGENERIC;
1402             }
1403
1404             /* When we Pause, we'll need the TimeoutPrevention thread to
1405              * handle sending the "Keep Alive" message to the server.
1406              * Unfortunately Live555 isn't thread safe and so can't
1407              * do this normally while the main Demux thread is handling
1408              * a live stream. We end up with the Timeout thread blocking
1409              * waiting for a response from the server. So when we PAUSE
1410              * we set a flag that the TimeoutPrevention function will check
1411              * and if it's set, it will trigger the GET_PARAMETER message */
1412             if( b_bool && p_sys->p_timeout != NULL )
1413                 p_sys->p_timeout->b_handle_keep_alive = true;
1414             else if( !b_bool && p_sys->p_timeout != NULL )
1415                 p_sys->p_timeout->b_handle_keep_alive = false;
1416
1417             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1418             {
1419                 live_track_t *tk = p_sys->track[i];
1420                 tk->b_rtcp_sync = false;
1421                 tk->i_pts = 0;
1422                 p_sys->i_pcr = 0;
1423                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1424             }
1425
1426             /* Retrieve the starttime if possible */
1427             p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1428
1429             /* Retrieve the duration if possible */
1430             p_sys->i_npt_length = p_sys->ms->playEndTime();
1431
1432             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1433             return VLC_SUCCESS;
1434         }
1435         case DEMUX_GET_TITLE_INFO:
1436         case DEMUX_SET_TITLE:
1437         case DEMUX_SET_SEEKPOINT:
1438             return VLC_EGENERIC;
1439
1440         case DEMUX_GET_PTS_DELAY:
1441             pi64 = (int64_t*)va_arg( args, int64_t * );
1442             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1443             return VLC_SUCCESS;
1444
1445         default:
1446             return VLC_EGENERIC;
1447     }
1448 }
1449
1450 /*****************************************************************************
1451  * RollOverTcp: reopen the rtsp into TCP mode
1452  * XXX: ugly, a lot of code are duplicated from Open()
1453  * This should REALLY be fixed
1454  *****************************************************************************/
1455 static int RollOverTcp( demux_t *p_demux )
1456 {
1457     demux_sys_t *p_sys = p_demux->p_sys;
1458     int i, i_return;
1459
1460     var_SetBool( p_demux, "rtsp-tcp", true );
1461
1462     /* We close the old RTSP session */
1463     for( i = 0; i < p_sys->i_track; i++ )
1464     {
1465         live_track_t *tk = p_sys->track[i];
1466
1467         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1468         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1469         es_format_Clean( &tk->fmt );
1470         free( tk->p_buffer );
1471         free( tk );
1472     }
1473     if( p_sys->i_track ) free( p_sys->track );
1474     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1475
1476     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1477     Medium::close( p_sys->ms );
1478     RTSPClient::close( p_sys->rtsp );
1479
1480     p_sys->ms = NULL;
1481     p_sys->rtsp = NULL;
1482     p_sys->track = NULL;
1483     p_sys->i_track = 0;
1484
1485     /* Reopen rtsp client */
1486     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1487     {
1488         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1489                  p_sys->psz_path );
1490         goto error;
1491     }
1492
1493     if( p_sys->p_sdp == NULL )
1494     {
1495         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1496         goto error;
1497     }
1498
1499     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1500     {
1501         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1502         goto error;
1503     }
1504
1505     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1506         goto error;
1507
1508     return VLC_SUCCESS;
1509
1510 error:
1511     return VLC_EGENERIC;
1512 }
1513
1514
1515 /*****************************************************************************
1516  *
1517  *****************************************************************************/
1518 static void StreamRead( void *p_private, unsigned int i_size,
1519                         unsigned int i_truncated_bytes, struct timeval pts,
1520                         unsigned int duration )
1521 {
1522     live_track_t   *tk = (live_track_t*)p_private;
1523     demux_t        *p_demux = tk->p_demux;
1524     demux_sys_t    *p_sys = p_demux->p_sys;
1525     block_t        *p_block;
1526
1527     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1528
1529     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1530         (int64_t)pts.tv_usec;
1531
1532     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1533     i_pts &= INT64_C(0x00ffffffffffffff);
1534
1535     /* Retrieve NPT for this pts */
1536     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1537
1538     if( tk->b_quicktime && tk->p_es == NULL )
1539     {
1540         QuickTimeGenericRTPSource *qtRTPSource =
1541             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1542         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1543         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1544
1545         if( tk->fmt.i_cat == VIDEO_ES ) {
1546             if( qtState.sdAtomSize < 16 + 32 )
1547             {
1548                 /* invalid */
1549                 p_sys->event = 0xff;
1550                 tk->waiting = 0;
1551                 return;
1552             }
1553             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1554             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1555             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1556
1557             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1558             {
1559                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1560                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1561                                   + qtRTPSource->qtState.sdAtomSize;
1562                 while (pos+8 < endpos) {
1563                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1564                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1565                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1566                         atomLength > 8 &&
1567                         atomLength <= INT_MAX )
1568                     {
1569                         tk->fmt.i_extra = atomLength-8;
1570                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1571                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1572                         break;
1573                     }
1574                     pos += atomLength;
1575                 }
1576             }
1577             else
1578             {
1579                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1580                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1581                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1582             }
1583         }
1584         else {
1585             if( qtState.sdAtomSize < 4 )
1586             {
1587                 /* invalid */
1588                 p_sys->event = 0xff;
1589                 tk->waiting = 0;
1590                 return;
1591             }
1592             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1593         }
1594         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1595     }
1596
1597 #if 0
1598     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1599              i_size,
1600              pts.tv_sec * 1000000LL + pts.tv_usec );
1601 #endif
1602
1603     /* grow buffer if it looks like buffer is too small, but don't eat
1604      * up all the memory on strange streams */
1605     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1606     {
1607         void *p_tmp;
1608         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1609         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1610         tk->i_buffer *= 2;
1611         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1612         if( p_tmp == NULL )
1613         {
1614             msg_Warn( p_demux, "realloc failed" );
1615         }
1616         else
1617         {
1618             tk->p_buffer = (uint8_t*)p_tmp;
1619         }
1620     }
1621     if( i_size > tk->i_buffer )
1622     {
1623         msg_Warn( p_demux, "buffer overflow" );
1624     }
1625     /* FIXME could i_size be > buffer size ? */
1626     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1627         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1628     {
1629         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1630
1631         p_block = block_New( p_demux, i_size + 1 );
1632         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1633         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1634     }
1635     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1636     {
1637         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1638         uint32_t header = h261Source->lastSpecialHeader();
1639         p_block = block_New( p_demux, i_size + 4 );
1640         memcpy( p_block->p_buffer, &header, 4 );
1641         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1642
1643         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1644             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1645     }
1646     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1647     {
1648         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1649             msg_Warn( p_demux, "unsupported NAL type for H264" );
1650
1651         /* Normal NAL type */
1652         p_block = block_New( p_demux, i_size + 4 );
1653         p_block->p_buffer[0] = 0x00;
1654         p_block->p_buffer[1] = 0x00;
1655         p_block->p_buffer[2] = 0x00;
1656         p_block->p_buffer[3] = 0x01;
1657         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1658     }
1659     else if( tk->b_asf )
1660     {
1661         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1662         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1663
1664         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1665     }
1666     else
1667     {
1668         p_block = block_New( p_demux, i_size );
1669         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1670     }
1671
1672     if( p_sys->i_pcr < i_pts )
1673     {
1674         p_sys->i_pcr = i_pts;
1675     }
1676
1677     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1678     {
1679         p_block->i_pts = i_pts;
1680     }
1681
1682     /* Update our global npt value */
1683     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1684         p_sys->i_npt = tk->i_npt;
1685
1686     if( !tk->b_muxed )
1687     {
1688         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1689         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1690     }
1691
1692     if( tk->b_muxed )
1693     {
1694         stream_DemuxSend( tk->p_out_muxed, p_block );
1695     }
1696     else if( tk->b_asf )
1697     {
1698         stream_DemuxSend( p_sys->p_out_asf, p_block );
1699     }
1700     else
1701     {
1702         es_out_Send( p_demux->out, tk->p_es, p_block );
1703     }
1704
1705     /* warn that's ok */
1706     p_sys->event = 0xff;
1707
1708     /* we have read data */
1709     tk->waiting = 0;
1710     p_demux->p_sys->b_no_data = false;
1711     p_demux->p_sys->i_no_data_ti = 0;
1712
1713     if( i_pts > 0 && !tk->b_muxed )
1714     {
1715         tk->i_pts = i_pts;
1716     }
1717 }
1718
1719 /*****************************************************************************
1720  *
1721  *****************************************************************************/
1722 static void StreamClose( void *p_private )
1723 {
1724     live_track_t   *tk = (live_track_t*)p_private;
1725     demux_t        *p_demux = tk->p_demux;
1726     demux_sys_t    *p_sys = p_demux->p_sys;
1727
1728     msg_Dbg( p_demux, "StreamClose" );
1729
1730     p_sys->event = 0xff;
1731     p_demux->b_error = true;
1732 }
1733
1734
1735 /*****************************************************************************
1736  *
1737  *****************************************************************************/
1738 static void TaskInterrupt( void *p_private )
1739 {
1740     demux_t *p_demux = (demux_t*)p_private;
1741
1742     p_demux->p_sys->i_no_data_ti++;
1743
1744     /* Avoid lock */
1745     p_demux->p_sys->event = 0xff;
1746 }
1747
1748 /*****************************************************************************
1749  *
1750  *****************************************************************************/
1751 static void* TimeoutPrevention( void *p_data )
1752 {
1753     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1754
1755     for( ;; )
1756     {
1757         /* Voodoo (= no) thread safety here! *Ahem* */
1758         if( p_timeout->b_handle_keep_alive )
1759         {
1760             char *psz_bye = NULL;
1761             int canc = vlc_savecancel ();
1762
1763             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1764             vlc_restorecancel (canc);
1765         }
1766         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1767
1768         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1769     }
1770     assert(0); /* dead code */
1771 }
1772
1773 /*****************************************************************************
1774  *
1775  *****************************************************************************/
1776 static int b64_decode( char *dest, char *src );
1777
1778 static int ParseASF( demux_t *p_demux )
1779 {
1780     demux_sys_t    *p_sys = p_demux->p_sys;
1781
1782     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1783     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1784     char *psz_end;
1785     block_t *p_header;
1786
1787     /* Parse the asf header */
1788     if( psz_asf == NULL )
1789         return VLC_EGENERIC;
1790
1791     psz_asf += strlen( psz_marker );
1792     psz_asf = strdup( psz_asf );    /* Duplicate it */
1793     psz_end = strchr( psz_asf, '\n' );
1794
1795     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1796         *psz_end-- = '\0';
1797
1798     if( psz_asf >= psz_end )
1799     {
1800         free( psz_asf );
1801         return VLC_EGENERIC;
1802     }
1803
1804     /* Always smaller */
1805     p_header = block_New( p_demux, psz_end - psz_asf );
1806     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1807     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1808     if( p_header->i_buffer <= 0 )
1809     {
1810         free( psz_asf );
1811         return VLC_EGENERIC;
1812     }
1813
1814     /* Parse it to get packet size */
1815     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1816
1817     /* Send it to demuxer */
1818     stream_DemuxSend( p_sys->p_out_asf, p_header );
1819
1820     free( psz_asf );
1821     return VLC_SUCCESS;
1822 }
1823
1824
1825 static unsigned char* parseH264ConfigStr( char const* configStr,
1826                                           unsigned int& configSize )
1827 {
1828     char *dup, *psz;
1829     int i, i_records = 1;
1830
1831     if( configSize )
1832     configSize = 0;
1833
1834     if( configStr == NULL || *configStr == '\0' )
1835         return NULL;
1836
1837     psz = dup = strdup( configStr );
1838
1839     /* Count the number of comma's */
1840     for( psz = dup; *psz != '\0'; ++psz )
1841     {
1842         if( *psz == ',')
1843         {
1844             ++i_records;
1845             *psz = '\0';
1846         }
1847     }
1848
1849     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1850     psz = dup;
1851     for( i = 0; i < i_records; i++ )
1852     {
1853         cfg[configSize++] = 0x00;
1854         cfg[configSize++] = 0x00;
1855         cfg[configSize++] = 0x00;
1856         cfg[configSize++] = 0x01;
1857
1858         configSize += b64_decode( (char*)&cfg[configSize], psz );
1859         psz += strlen(psz)+1;
1860     }
1861
1862     free( dup );
1863     return cfg;
1864 }
1865
1866 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1867 static int b64_decode( char *dest, char *src )
1868 {
1869     const char *dest_start = dest;
1870     int  i_level;
1871     int  last = 0;
1872     int  b64[256] = {
1873         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1874         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1875         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1876         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1877         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1878         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1879         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1880         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1881         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1882         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1883         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1884         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1885         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1886         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1887         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1888         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1889         };
1890
1891     for( i_level = 0; *src != '\0'; src++ )
1892     {
1893         int  c;
1894
1895         c = b64[(unsigned int)*src];
1896         if( c == -1 )
1897         {
1898             continue;
1899         }
1900
1901         switch( i_level )
1902         {
1903             case 0:
1904                 i_level++;
1905                 break;
1906             case 1:
1907                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1908                 i_level++;
1909                 break;
1910             case 2:
1911                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1912                 i_level++;
1913                 break;
1914             case 3:
1915                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1916                 i_level = 0;
1917         }
1918         last = c;
1919     }
1920
1921     *dest = '\0';
1922
1923     return dest - dest_start;
1924 }