git.sesse.net Git - vlc/blob - modules/demux/live555.cpp

   1 /*****************************************************************************
   2  * live555.cpp : LIVE555 Streaming Media support.
   3  *****************************************************************************
   4  * Copyright (C) 2003-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Derk-Jan Hartman <hartman at videolan. org>
   9  *          Derk-Jan Hartman <djhartman at m2x .dot. nl> for M2X
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29
  30 /* For inttypes.h
  31  * Note: config.h may include inttypes.h, so make sure we define this option
  32  * early enough. */
  33 #define __STDC_CONSTANT_MACROS 1
  34
  35 #ifdef HAVE_CONFIG_H
  36 # include "config.h"
  37 #endif
  38
  39 #include <inttypes.h>
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43
  44 #include <vlc_demux.h>
  45 #include <vlc_interface.h>
  46 #include <vlc_network.h>
  47 #include <vlc_url.h>
  48
  49 #include <iostream>
  50 #include <limits.h>
  51
  52
  53 #if defined( WIN32 )
  54 #   include <winsock2.h>
  55 #endif
  56
  57 #include "UsageEnvironment.hh"
  58 #include "BasicUsageEnvironment.hh"
  59 #include "GroupsockHelper.hh"
  60 #include "liveMedia.hh"
  61
  62 extern "C" {
  63 #include "../access/mms/asf.h"  /* Who said ugly ? */
  64 }
  65
  66 using namespace std;
  67
  68 /*****************************************************************************
  69  * Module descriptor
  70  *****************************************************************************/
  71 static int  Open ( vlc_object_t * );
  72 static void Close( vlc_object_t * );
  73
  74 #define CACHING_TEXT N_("Caching value (ms)")
  75 #define CACHING_LONGTEXT N_( \
  76     "Allows you to modify the default caching value for RTSP streams. This " \
  77     "value should be set in millisecond units." )
  78
  79 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  80 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  81     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  82     "for communication. In this mode you cannot connect to normal RTSP servers." )
  83
  84 #define USER_TEXT N_("RTSP user name")
  85 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  86     "be used for authenticating the connection.")
  87 #define PASS_TEXT N_("RTSP password")
  88 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  89     "used for the connection.")
  90
  91 vlc_module_begin();
  92     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) );
  93     set_capability( "demux", 50 );
  94     set_shortname( "RTP/RTSP");
  95     set_callbacks( Open, Close );
  96     add_shortcut( "live" );
  97     add_shortcut( "livedotcom" );
  98     set_category( CAT_INPUT );
  99     set_subcategory( SUBCAT_INPUT_DEMUX );
 100
 101     add_submodule();
 102         set_description( N_("RTSP/RTP access and demux") );
 103         add_shortcut( "rtsp" );
 104         add_shortcut( "sdp" );
 105         set_capability( "access_demux", 0 );
 106         set_callbacks( Open, Close );
 107         add_bool( "rtsp-tcp", 0, NULL,
 108                   N_("Use RTP over RTSP (TCP)"),
 109                   N_("Use RTP over RTSP (TCP)"), true );
 110         add_integer( "rtp-client-port", -1, NULL,
 111                   N_("Client port"),
 112                   N_("Port to use for the RTP source of the session"), true );
 113         add_bool( "rtsp-mcast", false, NULL,
 114                   N_("Force multicast RTP via RTSP"),
 115                   N_("Force multicast RTP via RTSP"), true );
 116         add_bool( "rtsp-http", 0, NULL,
 117                   N_("Tunnel RTSP and RTP over HTTP"),
 118                   N_("Tunnel RTSP and RTP over HTTP"), true );
 119         add_integer( "rtsp-http-port", 80, NULL,
 120                   N_("HTTP tunnel port"),
 121                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 122                   true );
 123         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 124                     CACHING_TEXT, CACHING_LONGTEXT, true );
 125         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 126                     KASENNA_LONGTEXT, true );
 127         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 128                     USER_LONGTEXT, true );
 129         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 130                     PASS_LONGTEXT, true );
 131 vlc_module_end();
 132
 133
 134 /*****************************************************************************
 135  * Local prototypes
 136  *****************************************************************************/
 137
 138 typedef struct
 139 {
 140     demux_t         *p_demux;
 141     MediaSubsession *sub;
 142
 143     es_format_t     fmt;
 144     es_out_id_t     *p_es;
 145
 146     bool            b_muxed;
 147     bool            b_quicktime;
 148     bool            b_asf;
 149     stream_t        *p_out_muxed;    /* for muxed stream */
 150
 151     uint8_t         *p_buffer;
 152     unsigned int    i_buffer;
 153
 154     bool            b_rtcp_sync;
 155     char            waiting;
 156     int64_t         i_pts;
 157     float           i_npt;
 158
 159 } live_track_t;
 160
 161 struct timeout_thread_t
 162 {
 163     VLC_COMMON_MEMBERS
 164
 165     int64_t      i_remain;
 166     bool         b_handle_keep_alive;
 167     demux_sys_t  *p_sys;
 168 };
 169
 170 struct demux_sys_t
 171 {
 172     char            *p_sdp;    /* XXX mallocated */
 173     char            *psz_path; /* URL-encoded path */
 174     vlc_url_t       url;
 175
 176     MediaSession     *ms;
 177     TaskScheduler    *scheduler;
 178     UsageEnvironment *env ;
 179     RTSPClient       *rtsp;
 180
 181     /* */
 182     int              i_track;
 183     live_track_t     **track;   /* XXX mallocated */
 184
 185     /* Weird formats */
 186     asf_header_t     asfh;
 187     stream_t         *p_out_asf;
 188     bool             b_real;
 189
 190     /* */
 191     int64_t          i_pcr; /* The clock */
 192     float            i_npt;
 193     float            i_npt_length;
 194     float            i_npt_start;
 195
 196     /* timeout thread information */
 197     int              i_timeout;     /* session timeout value in seconds */
 198     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 199     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 200
 201     /* */
 202     bool             b_force_mcast;
 203     bool             b_multicast;   /* if one of the tracks is multicasted */
 204     bool             b_no_data;     /* if we never received any data */
 205     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 206
 207     char             event;
 208
 209     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 210 };
 211
 212 static int Demux  ( demux_t * );
 213 static int Control( demux_t *, int, va_list );
 214
 215 static int Connect      ( demux_t * );
 216 static int SessionsSetup( demux_t * );
 217 static int Play         ( demux_t *);
 218 static int ParseASF     ( demux_t * );
 219 static int RollOverTcp  ( demux_t * );
 220
 221 static void StreamRead  ( void *, unsigned int, unsigned int,
 222                           struct timeval, unsigned int );
 223 static void StreamClose ( void * );
 224 static void TaskInterrupt( void * );
 225
 226 static void* TimeoutPrevention( vlc_object_t * );
 227
 228 static unsigned char* parseH264ConfigStr( char const* configStr,
 229                                           unsigned int& configSize );
 230
 231 /*****************************************************************************
 232  * DemuxOpen:
 233  *****************************************************************************/
 234 static int  Open ( vlc_object_t *p_this )
 235 {
 236     demux_t     *p_demux = (demux_t*)p_this;
 237     demux_sys_t *p_sys = NULL;
 238
 239     MediaSubsessionIterator *iter   = NULL;
 240     MediaSubsession         *sub    = NULL;
 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_DemuxDelete( 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_DemuxDelete( p_sys->p_out_asf );
 410     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 411     if( p_sys->ms ) Medium::close( p_sys->ms );
 412     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 413     if( p_sys->env ) p_sys->env->reclaim();
 414     if( p_sys->p_timeout )
 415     {
 416         vlc_object_kill( p_sys->p_timeout );
 417         vlc_thread_join( p_sys->p_timeout );
 418         vlc_object_detach( p_sys->p_timeout );
 419         vlc_object_release( p_sys->p_timeout );
 420     }
 421     delete p_sys->scheduler;
 422     free( p_sys->p_sdp );
 423     free( p_sys->psz_path );
 424
 425     vlc_UrlClean( &p_sys->url );
 426
 427     free( p_sys );
 428     return i_error;
 429 }
 430
 431 /*****************************************************************************
 432  * DemuxClose:
 433  *****************************************************************************/
 434 static void Close( vlc_object_t *p_this )
 435 {
 436     demux_t *p_demux = (demux_t*)p_this;
 437     demux_sys_t *p_sys = p_demux->p_sys;
 438     int i;
 439
 440     for( i = 0; i < p_sys->i_track; i++ )
 441     {
 442         live_track_t *tk = p_sys->track[i];
 443
 444         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 445         es_format_Clean( &tk->fmt );
 446         free( tk->p_buffer );
 447         free( tk );
 448     }
 449
 450     if( p_sys->i_track ) free( p_sys->track );
 451     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 452     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 453     if( p_sys->ms ) Medium::close( p_sys->ms );
 454     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 455     if( p_sys->env ) p_sys->env->reclaim();
 456     if( p_sys->p_timeout )
 457     {
 458         vlc_object_kill( p_sys->p_timeout );
 459         vlc_thread_join( p_sys->p_timeout );
 460         vlc_object_detach( p_sys->p_timeout );
 461         vlc_object_release( p_sys->p_timeout );
 462     }
 463     delete p_sys->scheduler;
 464     free( p_sys->p_sdp );
 465     free( p_sys->psz_path );
 466
 467     vlc_UrlClean( &p_sys->url );
 468
 469     free( p_sys );
 470 }
 471
 472 /*****************************************************************************
 473  * Connect: connects to the RTSP server to setup the session DESCRIBE
 474  *****************************************************************************/
 475 static int Connect( demux_t *p_demux )
 476 {
 477     demux_sys_t *p_sys = p_demux->p_sys;
 478     Authenticator authenticator;
 479     bool b_firstpass  = true;
 480     char *psz_user    = NULL;
 481     char *psz_pwd     = NULL;
 482     char *psz_url     = NULL;
 483     char *psz_options = NULL;
 484     char *p_sdp       = NULL;
 485     int  i_http_port  = 0;
 486     int  i_ret        = VLC_SUCCESS;
 487     int i_lefttries;
 488
 489     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 490     if( p_sys->url.psz_username || p_sys->url.psz_password )
 491     {
 492         int err;
 493         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 494                         p_sys->url.i_port, p_sys->url.psz_path );
 495         if( err == -1 ) return VLC_ENOMEM;
 496
 497         psz_user = strdup( p_sys->url.psz_username );
 498         psz_pwd  = strdup( p_sys->url.psz_password );
 499     }
 500     else
 501     {
 502         int err;
 503         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 504         if( err == -1 ) return VLC_ENOMEM;
 505
 506         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 507         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 508     }
 509
 510     i_lefttries = 3;
 511 createnew:
 512     i_lefttries--;
 513     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 514     {
 515         free( psz_user );
 516         free( psz_pwd );
 517         free( psz_url );
 518         return VLC_EGENERIC;
 519     }
 520
 521     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 522         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 523
 524     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 525           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 526           "VLC media player", i_http_port ) ) == NULL )
 527     {
 528         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 529                  p_sys->env->getResultMsg() );
 530         free( psz_user );
 531         free( psz_pwd );
 532         free( psz_url );
 533         return VLC_EGENERIC;
 534     }
 535
 536     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 537      * Appending _KA to the string should be enough to enable this feature,
 538      * however, there is a bug where the _KA doesn't get parsed from the
 539      * default User-Agent as created by VLC/Live555 code. This is probably due
 540      * to spaces in the string or the string being too long. Here we override
 541      * the default string with a more compact version.
 542      */
 543     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 544     {
 545         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 546     }
 547
 548 describe:
 549     authenticator.setUsernameAndPassword( (const char*)psz_user,
 550                                           (const char*)psz_pwd );
 551
 552     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 553                                                &authenticator );
 554     p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 555     delete [] psz_options;
 556
 557     p_sdp = p_sys->rtsp->describeURL( psz_url, &authenticator,
 558                          var_GetBool( p_demux, "rtsp-kasenna" ) );
 559     if( p_sdp == NULL )
 560     {
 561         /* failure occurred */
 562         int i_code = 0;
 563         const char *psz_error = p_sys->env->getResultMsg();
 564
 565         if( var_GetBool( p_demux, "rtsp-http" ) )
 566             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 567                     &i_code );
 568         else
 569         {
 570             const char *psz_tmp = strstr( psz_error, "RTSP" );
 571             if( psz_tmp )
 572                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 573             else
 574                 i_code = 0;
 575         }
 576         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 577
 578         if( b_firstpass )
 579         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 580              * first time. This is a workaround to avoid asking for a
 581              * user/passwd the first time the code passess here. */
 582             i_code = 0;
 583             b_firstpass = false;
 584         }
 585
 586         if( i_code == 401 )
 587         {
 588             int i_result;
 589             msg_Dbg( p_demux, "authentication failed" );
 590
 591             free( psz_user );
 592             free( psz_pwd );
 593             psz_user = psz_pwd = NULL;
 594
 595             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 596                            _("Please enter a valid login name and a password."),
 597                                                    &psz_user, &psz_pwd );
 598             if( i_result == DIALOG_OK_YES )
 599             {
 600                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 601                          psz_user, psz_pwd );
 602                 goto describe;
 603             }
 604         }
 605         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 606         {
 607             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 608             vlc_value_t val;
 609             val.b_bool = true;
 610             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 611             var_Set( p_demux, "rtsp-http", val );
 612             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 613             p_sys->rtsp = NULL;
 614             goto createnew;
 615         }
 616         else
 617         {
 618             msg_Dbg( p_demux, "connection timeout, retrying" );
 619             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 620             p_sys->rtsp = NULL;
 621             if( i_lefttries > 0 )
 622                 goto createnew;
 623         }
 624         i_ret = VLC_EGENERIC;
 625     }
 626
 627     /* malloc-ated copy */
 628     free( psz_url );
 629     free( psz_user );
 630     free( psz_pwd );
 631
 632     free( p_sys->p_sdp );
 633     p_sys->p_sdp = NULL;
 634     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 635     delete[] p_sdp;
 636
 637     return i_ret;
 638 }
 639
 640 /*****************************************************************************
 641  * SessionsSetup: prepares the subsessions and does the SETUP
 642  *****************************************************************************/
 643 static int SessionsSetup( demux_t *p_demux )
 644 {
 645     demux_sys_t             *p_sys  = p_demux->p_sys;
 646     MediaSubsessionIterator *iter   = NULL;
 647     MediaSubsession         *sub    = NULL;
 648
 649     bool           b_rtsp_tcp = false;
 650     int            i_client_port;
 651     int            i_return = VLC_SUCCESS;
 652     unsigned int   i_buffer = 0;
 653     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 654
 655     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 656                     var_GetBool( p_demux, "rtsp-http" );
 657     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 658
 659     /* Create the session from the SDP */
 660     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 661     {
 662         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 663             p_sys->env->getResultMsg() );
 664         return VLC_EGENERIC;
 665     }
 666
 667     /* Initialise each media subsession */
 668     iter = new MediaSubsessionIterator( *p_sys->ms );
 669     while( ( sub = iter->next() ) != NULL )
 670     {
 671         Boolean bInit;
 672         live_track_t *tk;
 673
 674         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 675         {
 676             delete iter;
 677             return VLC_EGENERIC;
 678         }
 679
 680         /* Value taken from mplayer */
 681         if( !strcmp( sub->mediumName(), "audio" ) )
 682             i_buffer = 100000;
 683         else if( !strcmp( sub->mediumName(), "video" ) )
 684             i_buffer = 2000000;
 685         else continue;
 686
 687         if( i_client_port != -1 )
 688         {
 689             sub->setClientPortNum( i_client_port );
 690             i_client_port += 2;
 691         }
 692
 693         if( strcasestr( sub->codecName(), "REAL" ) )
 694         {
 695             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 696             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 697             continue;
 698         }
 699
 700         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 701             bInit = sub->initiate( 4 ); /* Constant ? */
 702         else
 703             bInit = sub->initiate();
 704
 705         if( !bInit )
 706         {
 707             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 708                       sub->mediumName(), sub->codecName(),
 709                       p_sys->env->getResultMsg() );
 710         }
 711         else
 712         {
 713             if( sub->rtpSource() != NULL )
 714             {
 715                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 716
 717                 /* Increase the buffer size */
 718                 if( i_buffer > 0 )
 719                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 720
 721                 /* Increase the RTP reorder timebuffer just a bit */
 722                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 723             }
 724             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 725                      sub->codecName() );
 726
 727             /* Issue the SETUP */
 728             if( p_sys->rtsp )
 729             {
 730                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 731                                            b_rtsp_tcp ? True : False,
 732                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 733                 {
 734                     /* if we get an unsupported transport error, toggle TCP use and try again */
 735                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 736                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 737                                            b_rtsp_tcp ? False : True,
 738                                            False ) )
 739                     {
 740                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 741                                  sub->codecName(), p_sys->env->getResultMsg() );
 742                         continue;
 743                     }
 744                 }
 745             }
 746
 747             /* Check if we will receive data from this subsession for this track */
 748             if( sub->readSource() == NULL ) continue;
 749             if( !p_sys->b_multicast )
 750             {
 751                 /* Check, because we need diff. rollover behaviour for multicast */
 752                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 753             }
 754
 755             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 756             if( !tk )
 757             {
 758                 delete iter;
 759                 return VLC_ENOMEM;
 760             }
 761             tk->p_demux     = p_demux;
 762             tk->sub         = sub;
 763             tk->p_es        = NULL;
 764             tk->b_quicktime = false;
 765             tk->b_asf       = false;
 766             tk->b_muxed     = false;
 767             tk->p_out_muxed = NULL;
 768             tk->waiting     = 0;
 769             tk->b_rtcp_sync = false;
 770             tk->i_pts       = 0;
 771             tk->i_npt       = 0.;
 772             tk->i_buffer    = 65536;
 773             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 774             if( !tk->p_buffer )
 775             {
 776                 delete iter;
 777                 return VLC_ENOMEM;
 778             }
 779
 780             /* Value taken from mplayer */
 781             if( !strcmp( sub->mediumName(), "audio" ) )
 782             {
 783                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 784                 tk->fmt.audio.i_channels = sub->numChannels();
 785                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 786
 787                 if( !strcmp( sub->codecName(), "MPA" ) ||
 788                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 789                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 790                 {
 791                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 792                     tk->fmt.audio.i_rate = 0;
 793                 }
 794                 else if( !strcmp( sub->codecName(), "AC3" ) )
 795                 {
 796                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 797                     tk->fmt.audio.i_rate = 0;
 798                 }
 799                 else if( !strcmp( sub->codecName(), "L16" ) )
 800                 {
 801                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 802                     tk->fmt.audio.i_bitspersample = 16;
 803                 }
 804                 else if( !strcmp( sub->codecName(), "L8" ) )
 805                 {
 806                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 807                     tk->fmt.audio.i_bitspersample = 8;
 808                 }
 809                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 810                 {
 811                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 812                 }
 813                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 814                 {
 815                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 816                 }
 817                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 818                 {
 819                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 820                     tk->fmt.audio.i_rate = 8000;
 821                     tk->fmt.audio.i_channels = 1;
 822                     if( !strcmp( sub->codecName()+5, "40" ) )
 823                         tk->fmt.i_bitrate = 40000;
 824                     else if( !strcmp( sub->codecName()+5, "32" ) )
 825                         tk->fmt.i_bitrate = 32000;
 826                     else if( !strcmp( sub->codecName()+5, "24" ) )
 827                         tk->fmt.i_bitrate = 24000;
 828                     else if( !strcmp( sub->codecName()+5, "16" ) )
 829                         tk->fmt.i_bitrate = 16000;
 830                 }
 831                 else if( !strcmp( sub->codecName(), "AMR" ) )
 832                 {
 833                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 834                 }
 835                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 836                 {
 837                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 838                 }
 839                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 840                 {
 841                     unsigned int i_extra;
 842                     uint8_t      *p_extra;
 843
 844                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 845
 846                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 847                                                              i_extra ) ) )
 848                     {
 849                         tk->fmt.i_extra = i_extra;
 850                         tk->fmt.p_extra = malloc( i_extra );
 851                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 852                         delete[] p_extra;
 853                     }
 854                     /* Because the "faad" decoder does not handle the LATM data length field
 855                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 856                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 857                 }
 858                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 859                 {
 860                     unsigned int i_extra;
 861                     uint8_t      *p_extra;
 862
 863                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 864
 865                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 866                                                            i_extra ) ) )
 867                     {
 868                         tk->fmt.i_extra = i_extra;
 869                         tk->fmt.p_extra = malloc( i_extra );
 870                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 871                         delete[] p_extra;
 872                     }
 873                 }
 874                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 875                 {
 876                     tk->b_asf = true;
 877                     if( p_sys->p_out_asf == NULL )
 878                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 879                                                             p_demux->out );
 880                 }
 881                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 882                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 883                 {
 884                     tk->b_quicktime = true;
 885                 }
 886                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 887                 {
 888                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 889                     if ( sub->rtpTimestampFrequency() )
 890                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 891                     else
 892                     {
 893                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 894                         tk->fmt.audio.i_rate = 8000;
 895                     }
 896                 }
 897             }
 898             else if( !strcmp( sub->mediumName(), "video" ) )
 899             {
 900                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 901                 if( !strcmp( sub->codecName(), "MPV" ) )
 902                 {
 903                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 904                 }
 905                 else if( !strcmp( sub->codecName(), "H263" ) ||
 906                          !strcmp( sub->codecName(), "H263-1998" ) ||
 907                          !strcmp( sub->codecName(), "H263-2000" ) )
 908                 {
 909                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 910                 }
 911                 else if( !strcmp( sub->codecName(), "H261" ) )
 912                 {
 913                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 914                 }
 915                 else if( !strcmp( sub->codecName(), "H264" ) )
 916                 {
 917                     unsigned int i_extra = 0;
 918                     uint8_t      *p_extra = NULL;
 919
 920                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 921                     tk->fmt.b_packetized = false;
 922
 923                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 924                                                     i_extra ) ) )
 925                     {
 926                         tk->fmt.i_extra = i_extra;
 927                         tk->fmt.p_extra = malloc( i_extra );
 928                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 929
 930                         delete[] p_extra;
 931                     }
 932                 }
 933                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 934                 {
 935                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 936                 }
 937                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 938                 {
 939                     unsigned int i_extra;
 940                     uint8_t      *p_extra;
 941
 942                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 943
 944                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 945                                                            i_extra ) ) )
 946                     {
 947                         tk->fmt.i_extra = i_extra;
 948                         tk->fmt.p_extra = malloc( i_extra );
 949                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 950                         delete[] p_extra;
 951                     }
 952                 }
 953                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 954                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 955                          !strcmp( sub->codecName(), "X-QDM" ) ||
 956                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 957                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 958                 {
 959                     tk->b_quicktime = true;
 960                 }
 961                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 962                 {
 963                     tk->b_muxed = true;
 964                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 965                 }
 966                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 967                          !strcmp( sub->codecName(), "MP1S" ) )
 968                 {
 969                     tk->b_muxed = true;
 970                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 971                                                        p_demux->out );
 972                 }
 973                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 974                 {
 975                     tk->b_asf = true;
 976                     if( p_sys->p_out_asf == NULL )
 977                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 978                                                             p_demux->out );;
 979                 }
 980             }
 981
 982             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 983             {
 984                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 985             }
 986
 987             if( sub->rtcpInstance() != NULL )
 988             {
 989                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 990             }
 991
 992             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 993             {
 994                 /* Append */
 995                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 996                 p_sys->track[p_sys->i_track++] = tk;
 997             }
 998             else
 999             {
1000                 /* BUG ??? */
1001                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1002                 es_format_Clean( &tk->fmt );
1003                 free( tk );
1004             }
1005         }
1006     }
1007     delete iter;
1008     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1009
1010     /* Retrieve the starttime if possible */
1011     p_sys->i_npt_start = p_sys->ms->playStartTime();
1012
1013     /* Retrieve the duration if possible */
1014     p_sys->i_npt_length = p_sys->ms->playEndTime();
1015
1016     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1017     return i_return;
1018 }
1019
1020 /*****************************************************************************
1021  * Play: starts the actual playback of the stream
1022  *****************************************************************************/
1023 static int Play( demux_t *p_demux )
1024 {
1025     demux_sys_t *p_sys = p_demux->p_sys;
1026     int i;
1027
1028     if( p_sys->rtsp )
1029     {
1030         /* The PLAY */
1031         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1032         {
1033             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1034             return VLC_EGENERIC;
1035         }
1036
1037         /* Retrieve the timeout value and set up a timeout prevention thread */
1038         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1039         if( p_sys->i_timeout <= 0 )
1040             p_sys->i_timeout = 60; /* default value from RFC2326 */
1041
1042         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1043         if( !p_sys->p_timeout && p_sys->b_get_param )
1044         {
1045             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1046             p_sys->p_timeout = (timeout_thread_t *)vlc_object_create( p_demux, sizeof(timeout_thread_t) );
1047             p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1048             if( vlc_thread_create( p_sys->p_timeout, "liveMedia-timeout", TimeoutPrevention,
1049                                    VLC_THREAD_PRIORITY_LOW, true ) )
1050             {
1051                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1052                 vlc_object_release( p_sys->p_timeout );
1053             }
1054             msg_Dbg( p_demux, "spawned timeout thread" );
1055             vlc_object_attach( p_sys->p_timeout, p_demux );
1056         }
1057     }
1058     p_sys->i_pcr = 0;
1059
1060     /* Retrieve the starttime if possible */
1061     p_sys->i_npt_start = p_sys->ms->playStartTime();
1062     p_sys->i_npt_length = p_sys->ms->playEndTime();
1063
1064     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1065     return VLC_SUCCESS;
1066 }
1067
1068
1069 /*****************************************************************************
1070  * Demux:
1071  *****************************************************************************/
1072 static int Demux( demux_t *p_demux )
1073 {
1074     demux_sys_t    *p_sys = p_demux->p_sys;
1075     TaskToken      task;
1076
1077     bool            b_send_pcr = true;
1078     int64_t         i_pcr = 0;
1079     int             i;
1080
1081     /* Check if we need to send the server a Keep-A-Live signal */
1082     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1083     {
1084         char *psz_bye = NULL;
1085         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1086         p_sys->b_timeout_call = false;
1087     }
1088
1089     for( i = 0; i < p_sys->i_track; i++ )
1090     {
1091         live_track_t *tk = p_sys->track[i];
1092
1093         if( tk->b_asf || tk->b_muxed )
1094             b_send_pcr = false;
1095 #if 0
1096         if( i_pcr == 0 )
1097         {
1098             i_pcr = tk->i_pts;
1099         }
1100         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1101         {
1102             i_pcr = tk->i_pts ;
1103         }
1104 #endif
1105     }
1106     if( p_sys->i_pcr > 0 )
1107     {
1108         if( b_send_pcr )
1109             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1110     }
1111
1112     /* First warn we want to read data */
1113     p_sys->event = 0;
1114     for( i = 0; i < p_sys->i_track; i++ )
1115     {
1116         live_track_t *tk = p_sys->track[i];
1117
1118         if( tk->waiting == 0 )
1119         {
1120             tk->waiting = 1;
1121             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1122                                           StreamRead, tk, StreamClose, tk );
1123         }
1124     }
1125     /* Create a task that will be called if we wait more than 300ms */
1126     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1127
1128     /* Do the read */
1129     p_sys->scheduler->doEventLoop( &p_sys->event );
1130
1131     /* remove the task */
1132     p_sys->scheduler->unscheduleDelayedTask( task );
1133
1134     /* Check for gap in pts value */
1135     for( i = 0; i < p_sys->i_track; i++ )
1136     {
1137         live_track_t *tk = p_sys->track[i];
1138
1139         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1140             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1141         {
1142             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1143
1144             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1145             tk->b_rtcp_sync = true;
1146             /* reset PCR */
1147             tk->i_pts = 0;
1148             tk->i_npt = 0.;
1149             p_sys->i_pcr = 0;
1150             p_sys->i_npt = 0.;
1151             i_pcr = 0;
1152         }
1153     }
1154
1155     if( p_sys->b_multicast && p_sys->b_no_data &&
1156         ( p_sys->i_no_data_ti > 120 ) )
1157     {
1158         /* FIXME Make this configurable
1159         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1160         return 0;
1161         */
1162     }
1163     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1164              ( p_sys->i_no_data_ti > 34 ) )
1165     {
1166         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1167                                 var_GetBool( p_demux, "rtsp-http" );
1168
1169         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1170         {
1171             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1172             if( RollOverTcp( p_demux ) )
1173             {
1174                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1175                 return 0;
1176             }
1177             return 1;
1178         }
1179         msg_Err( p_demux, "no data received in 10s, aborting" );
1180         return 0;
1181     }
1182     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1183     {
1184         /* EOF ? */
1185         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1186         return 0;
1187     }
1188     return p_demux->b_error ? 0 : 1;
1189 }
1190
1191 /*****************************************************************************
1192  * Control:
1193  *****************************************************************************/
1194 static int Control( demux_t *p_demux, int i_query, va_list args )
1195 {
1196     demux_sys_t *p_sys = p_demux->p_sys;
1197     int64_t *pi64, i64;
1198     double  *pf, f;
1199     bool *pb, *pb2, b_bool;
1200     int *pi_int;
1201
1202     switch( i_query )
1203     {
1204         case DEMUX_GET_TIME:
1205             pi64 = (int64_t*)va_arg( args, int64_t * );
1206             if( p_sys->i_npt > 0 )
1207             {
1208                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1209                 return VLC_SUCCESS;
1210             }
1211             return VLC_EGENERIC;
1212
1213         case DEMUX_GET_LENGTH:
1214             pi64 = (int64_t*)va_arg( args, int64_t * );
1215             if( p_sys->i_npt_length > 0 )
1216             {
1217                 *pi64 = p_sys->i_npt_length * 1000000.0;
1218                 return VLC_SUCCESS;
1219             }
1220             return VLC_EGENERIC;
1221
1222         case DEMUX_GET_POSITION:
1223             pf = (double*)va_arg( args, double* );
1224             if( p_sys->i_npt_length > 0 && p_sys->i_npt > 0)
1225             {
1226                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1227                 return VLC_SUCCESS;
1228             }
1229             return VLC_EGENERIC;
1230
1231         case DEMUX_SET_POSITION:
1232         case DEMUX_SET_TIME:
1233             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1234             {
1235                 int i;
1236                 float time;
1237
1238                 if( i_query == DEMUX_SET_TIME && p_sys->i_npt > 0 )
1239                 {
1240                     i64 = (int64_t)va_arg( args, int64_t );
1241                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1242                 }
1243                 else if( i_query == DEMUX_SET_TIME )
1244                     return VLC_EGENERIC;
1245                 else
1246                 {
1247                     f = (double)va_arg( args, double );
1248                     time = f * (double)p_sys->i_npt_length;   /* in second */
1249                 }
1250
1251                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1252                 {
1253                     msg_Err( p_demux, "PLAY failed %s",
1254                         p_sys->env->getResultMsg() );
1255                     return VLC_EGENERIC;
1256                 }
1257                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1258                 p_sys->i_pcr = 0;
1259
1260                 /* Retrieve RTP-Info values */
1261                 for( i = 0; i < p_sys->i_track; i++ )
1262                 {
1263                     p_sys->track[i]->b_rtcp_sync = false;
1264                     p_sys->track[i]->i_pts = 0;
1265                 }
1266
1267                 /* Retrieve the starttime if possible */
1268                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1269
1270                 /* Retrieve the duration if possible */
1271                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1272
1273                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1274                 return VLC_SUCCESS;
1275             }
1276             return VLC_EGENERIC;
1277
1278         /* Special for access_demux */
1279         case DEMUX_CAN_PAUSE:
1280         case DEMUX_CAN_SEEK:
1281             pb = (bool*)va_arg( args, bool * );
1282             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1283                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1284                 *pb = true;
1285             else
1286                 *pb = false;
1287             return VLC_SUCCESS;
1288
1289         case DEMUX_CAN_CONTROL_PACE:
1290             pb = (bool*)va_arg( args, bool * );
1291
1292 #if 1       /* Disable for now until we have a clock synchro algo
1293              * which works with something else than MPEG over UDP */
1294             *pb = false;
1295 #else
1296             *pb = true;
1297 #endif
1298             return VLC_SUCCESS;
1299
1300 #if 0
1301         case DEMUX_CAN_CONTROL_RATE:
1302             pb = (bool*)va_arg( args, bool * );
1303             pb2 = (bool*)va_arg( args, bool * );
1304
1305             *pb = p_sys->rtsp != NULL && p_sys->i_npt_length > 0 && !var_GetBool( p_demux, "rtsp-kasenna" );
1306             *pb2 = false;
1307             return VLC_SUCCESS;
1308
1309         case DEMUX_SET_RATE:
1310         {
1311             double f_scale;
1312
1313             if( !p_sys->rtsp || p_sys->i_npt_length <= 0 || var_GetBool( p_demux, "rtsp-kasenna" ) )
1314                 return VLC_EGENERIC;
1315
1316             /* TODO we might want to ensure that the new rate is different from
1317              * old rate after playMediaSession...
1318              * I have no idea how the server map the requested rate to the
1319              * ones it supports.
1320              * ex:
1321              *  current is x2 we request x1.5 if the server return x2 we will
1322              *  never succeed to return to x1.
1323              *  In this case we should retry with a lower rate until we have
1324              *  one (even x1).
1325              */
1326
1327             pi_int = (int*)va_arg( args, int * );
1328             f_scale = (double)INPUT_RATE_DEFAULT / (*p_int);
1329
1330             /* Passing -1 for the start and end time will mean liveMedia won't
1331             * create a Range: section for the RTSP message. The server should
1332             * pick up from the current position */
1333             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1334             {
1335                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1336                         p_sys->env->getResultMsg() );
1337                 return VLC_EGENERIC;
1338             }
1339             /* ReSync the stream */
1340             p_sys->i_npt_start = 0;
1341             p_sys->i_pcr = 0;
1342             p_sys->i_npt = 0.;
1343             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1344
1345             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() + 0.5 );
1346             return VLC_SUCCESS;
1347         }
1348 #endif
1349
1350         case DEMUX_SET_PAUSE_STATE:
1351         {
1352             int i;
1353
1354             b_bool = (bool)va_arg( args, int );
1355             if( p_sys->rtsp == NULL )
1356                 return VLC_EGENERIC;
1357
1358             /* FIXME */
1359             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1360                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1361                        -1 ) ) )
1362             {
1363                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1364                     return VLC_EGENERIC;
1365             }
1366
1367             /* When we Pause, we'll need the TimeoutPrevention thread to
1368              * handle sending the "Keep Alive" message to the server.
1369              * Unfortunately Live555 isn't thread safe and so can't
1370              * do this normally while the main Demux thread is handling
1371              * a live stream. We end up with the Timeout thread blocking
1372              * waiting for a response from the server. So when we PAUSE
1373              * we set a flag that the TimeoutPrevention function will check
1374              * and if it's set, it will trigger the GET_PARAMETER message */
1375             if( b_bool && p_sys->p_timeout != NULL )
1376                 p_sys->p_timeout->b_handle_keep_alive = true;
1377             else if( !b_bool && p_sys->p_timeout != NULL )
1378                 p_sys->p_timeout->b_handle_keep_alive = false;
1379
1380             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1381             {
1382                 live_track_t *tk = p_sys->track[i];
1383                 tk->b_rtcp_sync = false;
1384                 tk->i_pts = 0;
1385                 p_sys->i_pcr = 0;
1386                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1387             }
1388
1389             /* Retrieve the starttime if possible */
1390             p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1391
1392             /* Retrieve the duration if possible */
1393             p_sys->i_npt_length = p_sys->ms->playEndTime();
1394
1395             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1396             return VLC_SUCCESS;
1397         }
1398         case DEMUX_GET_TITLE_INFO:
1399         case DEMUX_SET_TITLE:
1400         case DEMUX_SET_SEEKPOINT:
1401             return VLC_EGENERIC;
1402
1403         case DEMUX_GET_PTS_DELAY:
1404             pi64 = (int64_t*)va_arg( args, int64_t * );
1405             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1406             return VLC_SUCCESS;
1407
1408         default:
1409             return VLC_EGENERIC;
1410     }
1411 }
1412
1413 /*****************************************************************************
1414  * RollOverTcp: reopen the rtsp into TCP mode
1415  * XXX: ugly, a lot of code are duplicated from Open()
1416  * This should REALLY be fixed
1417  *****************************************************************************/
1418 static int RollOverTcp( demux_t *p_demux )
1419 {
1420     demux_sys_t *p_sys = p_demux->p_sys;
1421     int i, i_return;
1422
1423     var_SetBool( p_demux, "rtsp-tcp", true );
1424
1425     /* We close the old RTSP session */
1426     for( i = 0; i < p_sys->i_track; i++ )
1427     {
1428         live_track_t *tk = p_sys->track[i];
1429
1430         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1431         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1432         es_format_Clean( &tk->fmt );
1433         free( tk->p_buffer );
1434         free( tk );
1435     }
1436     if( p_sys->i_track ) free( p_sys->track );
1437     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1438
1439     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1440     Medium::close( p_sys->ms );
1441     RTSPClient::close( p_sys->rtsp );
1442
1443     p_sys->ms = NULL;
1444     p_sys->rtsp = NULL;
1445     p_sys->track = NULL;
1446     p_sys->i_track = 0;
1447
1448     /* Reopen rtsp client */
1449     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1450     {
1451         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1452                  p_sys->psz_path );
1453         goto error;
1454     }
1455
1456     if( p_sys->p_sdp == NULL )
1457     {
1458         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1459         goto error;
1460     }
1461
1462     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1463     {
1464         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1465         goto error;
1466     }
1467
1468     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1469         goto error;
1470
1471     return VLC_SUCCESS;
1472
1473 error:
1474     return VLC_EGENERIC;
1475 }
1476
1477
1478 /*****************************************************************************
1479  *
1480  *****************************************************************************/
1481 static void StreamRead( void *p_private, unsigned int i_size,
1482                         unsigned int i_truncated_bytes, struct timeval pts,
1483                         unsigned int duration )
1484 {
1485     live_track_t   *tk = (live_track_t*)p_private;
1486     demux_t        *p_demux = tk->p_demux;
1487     demux_sys_t    *p_sys = p_demux->p_sys;
1488     block_t        *p_block;
1489
1490     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1491
1492     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1493         (int64_t)pts.tv_usec;
1494
1495     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1496     i_pts &= INT64_C(0x00ffffffffffffff);
1497
1498     /* Retrieve NPT for this pts */
1499     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1500
1501     if( tk->b_quicktime && tk->p_es == NULL )
1502     {
1503         QuickTimeGenericRTPSource *qtRTPSource =
1504             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1505         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1506         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1507
1508         if( tk->fmt.i_cat == VIDEO_ES ) {
1509             if( qtState.sdAtomSize < 16 + 32 )
1510             {
1511                 /* invalid */
1512                 p_sys->event = 0xff;
1513                 tk->waiting = 0;
1514                 return;
1515             }
1516             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1517             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1518             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1519
1520             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1521             {
1522                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1523                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1524                                   + qtRTPSource->qtState.sdAtomSize;
1525                 while (pos+8 < endpos) {
1526                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1527                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1528                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1529                         atomLength > 8 &&
1530                         atomLength <= INT_MAX )
1531                     {
1532                         tk->fmt.i_extra = atomLength-8;
1533                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1534                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1535                         break;
1536                     }
1537                     pos += atomLength;
1538                 }
1539             }
1540             else
1541             {
1542                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1543                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1544                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1545             }
1546         }
1547         else {
1548             if( qtState.sdAtomSize < 4 )
1549             {
1550                 /* invalid */
1551                 p_sys->event = 0xff;
1552                 tk->waiting = 0;
1553                 return;
1554             }
1555             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1556         }
1557         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1558     }
1559
1560 #if 0
1561     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1562              i_size,
1563              pts.tv_sec * 1000000LL + pts.tv_usec );
1564 #endif
1565
1566     /* grow buffer if it looks like buffer is too small, but don't eat
1567      * up all the memory on strange streams */
1568     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1569     {
1570         void *p_tmp;
1571         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1572         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1573         tk->i_buffer *= 2;
1574         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1575         if( p_tmp == NULL )
1576         {
1577             msg_Warn( p_demux, "realloc failed" );
1578         }
1579         else
1580         {
1581             tk->p_buffer = (uint8_t*)p_tmp;
1582         }
1583     }
1584     if( i_size > tk->i_buffer )
1585     {
1586         msg_Warn( p_demux, "buffer overflow" );
1587     }
1588     /* FIXME could i_size be > buffer size ? */
1589     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1590         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1591     {
1592         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1593
1594         p_block = block_New( p_demux, i_size + 1 );
1595         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1596         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1597     }
1598     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1599     {
1600         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1601         uint32_t header = h261Source->lastSpecialHeader();
1602         p_block = block_New( p_demux, i_size + 4 );
1603         memcpy( p_block->p_buffer, &header, 4 );
1604         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1605
1606         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1607             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1608     }
1609     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1610     {
1611         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1612             msg_Warn( p_demux, "unsupported NAL type for H264" );
1613
1614         /* Normal NAL type */
1615         p_block = block_New( p_demux, i_size + 4 );
1616         p_block->p_buffer[0] = 0x00;
1617         p_block->p_buffer[1] = 0x00;
1618         p_block->p_buffer[2] = 0x00;
1619         p_block->p_buffer[3] = 0x01;
1620         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1621     }
1622     else if( tk->b_asf )
1623     {
1624         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1625         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1626
1627         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1628     }
1629     else
1630     {
1631         p_block = block_New( p_demux, i_size );
1632         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1633     }
1634
1635     if( p_sys->i_pcr < i_pts )
1636     {
1637         p_sys->i_pcr = i_pts;
1638     }
1639
1640     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1641     {
1642         p_block->i_pts = i_pts;
1643     }
1644
1645     /* Update our global npt value */
1646     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1647         p_sys->i_npt = tk->i_npt;
1648
1649     if( !tk->b_muxed )
1650     {
1651         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1652         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1653     }
1654
1655     if( tk->b_muxed )
1656     {
1657         stream_DemuxSend( tk->p_out_muxed, p_block );
1658     }
1659     else if( tk->b_asf )
1660     {
1661         stream_DemuxSend( p_sys->p_out_asf, p_block );
1662     }
1663     else
1664     {
1665         es_out_Send( p_demux->out, tk->p_es, p_block );
1666     }
1667
1668     /* warn that's ok */
1669     p_sys->event = 0xff;
1670
1671     /* we have read data */
1672     tk->waiting = 0;
1673     p_demux->p_sys->b_no_data = false;
1674     p_demux->p_sys->i_no_data_ti = 0;
1675
1676     if( i_pts > 0 && !tk->b_muxed )
1677     {
1678         tk->i_pts = i_pts;
1679     }
1680 }
1681
1682 /*****************************************************************************
1683  *
1684  *****************************************************************************/
1685 static void StreamClose( void *p_private )
1686 {
1687     live_track_t   *tk = (live_track_t*)p_private;
1688     demux_t        *p_demux = tk->p_demux;
1689     demux_sys_t    *p_sys = p_demux->p_sys;
1690
1691     msg_Dbg( p_demux, "StreamClose" );
1692
1693     p_sys->event = 0xff;
1694     p_demux->b_error = true;
1695 }
1696
1697
1698 /*****************************************************************************
1699  *
1700  *****************************************************************************/
1701 static void TaskInterrupt( void *p_private )
1702 {
1703     demux_t *p_demux = (demux_t*)p_private;
1704
1705     p_demux->p_sys->i_no_data_ti++;
1706
1707     /* Avoid lock */
1708     p_demux->p_sys->event = 0xff;
1709 }
1710
1711 /*****************************************************************************
1712  *
1713  *****************************************************************************/
1714 static void* TimeoutPrevention( vlc_object_t * p_this )
1715 {
1716     timeout_thread_t *p_timeout = (timeout_thread_t *)p_this;
1717     p_timeout->b_die = false;
1718     p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1719     p_timeout->i_remain *= 1000000;
1720
1721     vlc_thread_ready( p_timeout );
1722
1723     int canc = vlc_savecancel ();
1724     /* Avoid lock */
1725     while( vlc_object_alive (p_timeout) )
1726     {
1727         if( p_timeout->i_remain <= 0 )
1728         {
1729             char *psz_bye = NULL;
1730             p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1731             p_timeout->i_remain *= 1000000;
1732             msg_Dbg( p_timeout, "reset the timeout timer" );
1733             if( p_timeout->b_handle_keep_alive == true )
1734             {
1735                 p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1736                 p_timeout->p_sys->b_timeout_call = false;
1737             }
1738             else
1739             {
1740                 p_timeout->p_sys->b_timeout_call = true;
1741             }
1742         }
1743         p_timeout->i_remain -= 200000;
1744         msleep( 200000 ); /* 200 ms */
1745     }
1746     vlc_restorecancel (canc);
1747 }
1748
1749 /*****************************************************************************
1750  *
1751  *****************************************************************************/
1752 static int b64_decode( char *dest, char *src );
1753
1754 static int ParseASF( demux_t *p_demux )
1755 {
1756     demux_sys_t    *p_sys = p_demux->p_sys;
1757
1758     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1759     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1760     char *psz_end;
1761     block_t *p_header;
1762
1763     /* Parse the asf header */
1764     if( psz_asf == NULL )
1765         return VLC_EGENERIC;
1766
1767     psz_asf += strlen( psz_marker );
1768     psz_asf = strdup( psz_asf );    /* Duplicate it */
1769     psz_end = strchr( psz_asf, '\n' );
1770
1771     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1772         *psz_end-- = '\0';
1773
1774     if( psz_asf >= psz_end )
1775     {
1776         free( psz_asf );
1777         return VLC_EGENERIC;
1778     }
1779
1780     /* Always smaller */
1781     p_header = block_New( p_demux, psz_end - psz_asf );
1782     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1783     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1784     if( p_header->i_buffer <= 0 )
1785     {
1786         free( psz_asf );
1787         return VLC_EGENERIC;
1788     }
1789
1790     /* Parse it to get packet size */
1791     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1792
1793     /* Send it to demuxer */
1794     stream_DemuxSend( p_sys->p_out_asf, p_header );
1795
1796     free( psz_asf );
1797     return VLC_SUCCESS;
1798 }
1799
1800
1801 static unsigned char* parseH264ConfigStr( char const* configStr,
1802                                           unsigned int& configSize )
1803 {
1804     char *dup, *psz;
1805     int i, i_records = 1;
1806
1807     if( configSize )
1808     configSize = 0;
1809
1810     if( configStr == NULL || *configStr == '\0' )
1811         return NULL;
1812
1813     psz = dup = strdup( configStr );
1814
1815     /* Count the number of comma's */
1816     for( psz = dup; *psz != '\0'; ++psz )
1817     {
1818         if( *psz == ',')
1819         {
1820             ++i_records;
1821             *psz = '\0';
1822         }
1823     }
1824
1825     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1826     psz = dup;
1827     for( i = 0; i < i_records; i++ )
1828     {
1829         cfg[configSize++] = 0x00;
1830         cfg[configSize++] = 0x00;
1831         cfg[configSize++] = 0x00;
1832         cfg[configSize++] = 0x01;
1833
1834         configSize += b64_decode( (char*)&cfg[configSize], psz );
1835         psz += strlen(psz)+1;
1836     }
1837
1838     free( dup );
1839     return cfg;
1840 }
1841
1842 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1843 static int b64_decode( char *dest, char *src )
1844 {
1845     const char *dest_start = dest;
1846     int  i_level;
1847     int  last = 0;
1848     int  b64[256] = {
1849         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1850         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1851         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1852         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1853         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1854         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1855         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1856         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1857         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1858         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1859         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1860         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1861         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1862         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1863         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1864         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1865         };
1866
1867     for( i_level = 0; *src != '\0'; src++ )
1868     {
1869         int  c;
1870
1871         c = b64[(unsigned int)*src];
1872         if( c == -1 )
1873         {
1874             continue;
1875         }
1876
1877         switch( i_level )
1878         {
1879             case 0:
1880                 i_level++;
1881                 break;
1882             case 1:
1883                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1884                 i_level++;
1885                 break;
1886             case 2:
1887                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1888                 i_level++;
1889                 break;
1890             case 3:
1891                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1892                 i_level = 0;
1893         }
1894         last = c;
1895     }
1896
1897     *dest = '\0';
1898
1899     return dest - dest_start;
1900 }