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 along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29
  30 /* For inttypes.h
  31  * Note: config.h may include inttypes.h, so make sure we define this option
  32  * early enough. */
  33 #define __STDC_CONSTANT_MACROS 1
  34
  35 #ifdef HAVE_CONFIG_H
  36 # include "config.h"
  37 #endif
  38
  39 #include <inttypes.h>
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43 #include <vlc_input.h>
  44 #include <vlc_demux.h>
  45 #include <vlc_dialog.h>
  46 #include <vlc_url.h>
  47 #include <vlc_strings.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 nonstandard " \
  82     "dialect of RTSP. With this parameter VLC will try this dialect, but "\
  83     "then it cannot connect to normal RTSP servers." )
  84
  85 #define WMSERVER_TEXT N_("WMServer RTSP dialect")
  86 #define WMSERVER_LONGTEXT N_("WMServer uses an unstandard dialect " \
  87     "of RTSP. Selecting this parameter will tell VLC to assume some " \
  88     "options contrary to RFC 2326 guidelines.")
  89
  90 #define USER_TEXT N_("RTSP user name")
  91 #define USER_LONGTEXT N_("Sets the username for the connection, " \
  92     "if no username or password are set in the url.")
  93 #define PASS_TEXT N_("RTSP password")
  94 #define PASS_LONGTEXT N_("Sets the password for the connection, " \
  95     "if no username or password are set in the url.")
  96
  97 vlc_module_begin ()
  98     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
  99     set_capability( "demux", 50 )
 100     set_shortname( "RTP/RTSP")
 101     set_callbacks( Open, Close )
 102     add_shortcut( "live" )
 103     add_shortcut( "livedotcom" )
 104     set_category( CAT_INPUT )
 105     set_subcategory( SUBCAT_INPUT_DEMUX )
 106
 107     add_submodule ()
 108         set_description( N_("RTSP/RTP access and demux") )
 109         add_shortcut( "rtsp" )
 110         add_shortcut( "sdp" )
 111         add_shortcut( "live" )
 112         add_shortcut( "livedotcom" )
 113         set_capability( "access_demux", 0 )
 114         set_callbacks( Open, Close )
 115         add_bool( "rtsp-tcp", false, NULL,
 116                   N_("Use RTP over RTSP (TCP)"),
 117                   N_("Use RTP over RTSP (TCP)"), true )
 118             change_safe()
 119         add_integer( "rtp-client-port", -1, NULL,
 120                   N_("Client port"),
 121                   N_("Port to use for the RTP source of the session"), true )
 122         add_bool( "rtsp-mcast", false, NULL,
 123                   N_("Force multicast RTP via RTSP"),
 124                   N_("Force multicast RTP via RTSP"), true )
 125             change_safe()
 126         add_bool( "rtsp-http", false, NULL,
 127                   N_("Tunnel RTSP and RTP over HTTP"),
 128                   N_("Tunnel RTSP and RTP over HTTP"), true )
 129             change_safe()
 130         add_integer( "rtsp-http-port", 80, NULL,
 131                   N_("HTTP tunnel port"),
 132                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 133                   true )
 134         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 135                     CACHING_TEXT, CACHING_LONGTEXT, true )
 136             change_safe()
 137         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 138                     KASENNA_LONGTEXT, true )
 139         add_bool(   "rtsp-wmserver", false, NULL, WMSERVER_TEXT,
 140                     WMSERVER_LONGTEXT, true)
 141             change_safe()
 142         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 143                     USER_LONGTEXT, true )
 144             change_safe()
 145         add_password( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 146                       PASS_LONGTEXT, true )
 147             change_safe()
 148 vlc_module_end ()
 149
 150
 151 /*****************************************************************************
 152  * Local prototypes
 153  *****************************************************************************/
 154
 155 typedef struct
 156 {
 157     demux_t         *p_demux;
 158     MediaSubsession *sub;
 159
 160     es_format_t     fmt;
 161     es_out_id_t     *p_es;
 162
 163     bool            b_muxed;
 164     bool            b_quicktime;
 165     bool            b_asf;
 166     bool            b_discard_trunc;
 167     stream_t        *p_out_muxed;    /* for muxed stream */
 168
 169     uint8_t         *p_buffer;
 170     unsigned int    i_buffer;
 171
 172     bool            b_rtcp_sync;
 173     char            waiting;
 174     int64_t         i_pts;
 175     float           i_npt;
 176
 177 } live_track_t;
 178
 179 struct timeout_thread_t
 180 {
 181     demux_sys_t  *p_sys;
 182     vlc_thread_t handle;
 183     bool         b_handle_keep_alive;
 184 };
 185
 186 struct demux_sys_t
 187 {
 188     char            *p_sdp;    /* XXX mallocated */
 189     char            *psz_path; /* URL-encoded path */
 190     vlc_url_t       url;
 191
 192     MediaSession     *ms;
 193     TaskScheduler    *scheduler;
 194     UsageEnvironment *env ;
 195     RTSPClient       *rtsp;
 196
 197     /* */
 198     int              i_track;
 199     live_track_t     **track;   /* XXX mallocated */
 200
 201     /* Weird formats */
 202     asf_header_t     asfh;
 203     stream_t         *p_out_asf;
 204     bool             b_real;
 205
 206     /* */
 207     int64_t          i_pcr; /* The clock */
 208     float            i_npt;
 209     float            i_npt_length;
 210     float            i_npt_start;
 211
 212     /* timeout thread information */
 213     int              i_timeout;     /* session timeout value in seconds */
 214     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 215     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 216
 217     /* */
 218     bool             b_force_mcast;
 219     bool             b_multicast;   /* if one of the tracks is multicasted */
 220     bool             b_no_data;     /* if we never received any data */
 221     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 222
 223     char             event;
 224
 225     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 226     bool             b_paused;      /* Are we paused? */
 227
 228     float            f_seek_request;/* In case we receive a seek request while paused*/
 229 };
 230
 231 static int Demux  ( demux_t * );
 232 static int Control( demux_t *, int, va_list );
 233
 234 static int Connect      ( demux_t * );
 235 static int SessionsSetup( demux_t * );
 236 static int Play         ( demux_t *);
 237 static int ParseASF     ( demux_t * );
 238 static int RollOverTcp  ( demux_t * );
 239
 240 static void StreamRead  ( void *, unsigned int, unsigned int,
 241                           struct timeval, unsigned int );
 242 static void StreamClose ( void * );
 243 static void TaskInterrupt( void * );
 244
 245 static void* TimeoutPrevention( void * );
 246
 247 static unsigned char* parseH264ConfigStr( char const* configStr,
 248                                           unsigned int& configSize );
 249
 250 /*****************************************************************************
 251  * DemuxOpen:
 252  *****************************************************************************/
 253 static int  Open ( vlc_object_t *p_this )
 254 {
 255     demux_t     *p_demux = (demux_t*)p_this;
 256     demux_sys_t *p_sys = NULL;
 257
 258     int i_return;
 259     int i_error = VLC_EGENERIC;
 260
 261     if( p_demux->s )
 262     {
 263         /* See if it looks like a SDP
 264            v, o, s fields are mandatory and in this order */
 265         const uint8_t *p_peek;
 266         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 267
 268         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 269             memcmp( p_peek, "v=0\n", 4 ) &&
 270             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 271         {
 272             return VLC_EGENERIC;
 273         }
 274     }
 275     else
 276     {
 277         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 278     }
 279
 280     p_demux->pf_demux  = Demux;
 281     p_demux->pf_control= Control;
 282     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 283     if( !p_sys ) return VLC_ENOMEM;
 284
 285     p_sys->p_sdp = NULL;
 286     p_sys->scheduler = NULL;
 287     p_sys->env = NULL;
 288     p_sys->ms = NULL;
 289     p_sys->rtsp = NULL;
 290     p_sys->i_track = 0;
 291     p_sys->track   = NULL;
 292     p_sys->i_pcr = 0;
 293     p_sys->i_npt = 0.;
 294     p_sys->i_npt_start = 0.;
 295     p_sys->i_npt_length = 0.;
 296     p_sys->p_out_asf = NULL;
 297     p_sys->b_no_data = true;
 298     p_sys->i_no_data_ti = 0;
 299     p_sys->p_timeout = NULL;
 300     p_sys->i_timeout = 0;
 301     p_sys->b_timeout_call = false;
 302     p_sys->b_multicast = false;
 303     p_sys->b_real = false;
 304     p_sys->psz_path = strdup( p_demux->psz_path );
 305     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 306     p_sys->b_get_param = false;
 307     p_sys->b_paused = false;
 308     p_sys->f_seek_request = -1;
 309
 310     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 311     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 312
 313     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 314     {
 315         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 316         goto error;
 317     }
 318     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 319     {
 320         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 321         goto error;
 322     }
 323
 324     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 325     {
 326         char *p = p_sys->psz_path;
 327         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 328     }
 329
 330     if( p_demux->s != NULL )
 331     {
 332         /* Gather the complete sdp file */
 333         int     i_sdp       = 0;
 334         int     i_sdp_max   = 1000;
 335         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 336
 337         if( !p_sdp )
 338         {
 339             i_error = VLC_ENOMEM;
 340             goto error;
 341         }
 342
 343         for( ;; )
 344         {
 345             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 346                                       i_sdp_max - i_sdp - 1 );
 347
 348             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 349             {
 350                 free( p_sdp );
 351                 goto error;
 352             }
 353
 354             if( i_read < 0 )
 355             {
 356                 msg_Err( p_demux, "failed to read SDP" );
 357                 free( p_sdp );
 358                 goto error;
 359             }
 360
 361             i_sdp += i_read;
 362
 363             if( i_read < i_sdp_max - i_sdp - 1 )
 364             {
 365                 p_sdp[i_sdp] = '\0';
 366                 break;
 367             }
 368
 369             i_sdp_max += 1000;
 370             p_sdp = (uint8_t*)xrealloc( p_sdp, i_sdp_max );
 371         }
 372         p_sys->p_sdp = (char*)p_sdp;
 373     }
 374     else if( ( p_demux->s == NULL ) &&
 375              !strcasecmp( p_demux->psz_access, "sdp" ) )
 376     {
 377         /* sdp:// link from SAP */
 378         p_sys->p_sdp = strdup( p_sys->psz_path );
 379     }
 380     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 381     {
 382         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 383         goto error;
 384     }
 385
 386     if( p_sys->p_sdp == NULL )
 387     {
 388         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 389         i_error = VLC_ENOMEM;
 390         goto error;
 391     }
 392
 393     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 394     {
 395         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 396         goto error;
 397     }
 398
 399     if( p_sys->b_real ) goto error;
 400
 401     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 402         goto error;
 403
 404     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 405     {
 406         msg_Err( p_demux, "cannot find a usable asf header" );
 407         /* TODO Clean tracks */
 408         goto error;
 409     }
 410
 411     if( p_sys->i_track <= 0 )
 412         goto error;
 413
 414     return VLC_SUCCESS;
 415
 416 error:
 417     Close( p_this );
 418     return i_error;
 419 }
 420
 421 /*****************************************************************************
 422  * DemuxClose:
 423  *****************************************************************************/
 424 static void Close( vlc_object_t *p_this )
 425 {
 426     demux_t *p_demux = (demux_t*)p_this;
 427     demux_sys_t *p_sys = p_demux->p_sys;
 428     int i;
 429
 430     for( i = 0; i < p_sys->i_track; i++ )
 431     {
 432         live_track_t *tk = p_sys->track[i];
 433
 434         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 435         es_format_Clean( &tk->fmt );
 436         free( tk->p_buffer );
 437         free( tk );
 438     }
 439
 440     if( p_sys->i_track ) free( p_sys->track );
 441     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 442     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 443     if( p_sys->p_timeout )
 444     {
 445         vlc_cancel( p_sys->p_timeout->handle );
 446         vlc_join( p_sys->p_timeout->handle, NULL );
 447         free( p_sys->p_timeout );
 448     }
 449     if( p_sys->ms ) Medium::close( p_sys->ms );
 450     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 451     if( p_sys->env ) p_sys->env->reclaim();
 452     delete p_sys->scheduler;
 453     free( p_sys->p_sdp );
 454     free( p_sys->psz_path );
 455
 456     vlc_UrlClean( &p_sys->url );
 457
 458     free( p_sys );
 459 }
 460
 461 static inline const char *strempty( const char *s ) { return s?s:""; }
 462 static inline Boolean toBool( bool b ) { return b?True:False; } // silly, no?
 463
 464 /*****************************************************************************
 465  * Connect: connects to the RTSP server to setup the session DESCRIBE
 466  *****************************************************************************/
 467 static int Connect( demux_t *p_demux )
 468 {
 469     demux_sys_t *p_sys = p_demux->p_sys;
 470     Authenticator authenticator;
 471     char *psz_user    = NULL;
 472     char *psz_pwd     = NULL;
 473     char *psz_url     = NULL;
 474     char *psz_options = NULL;
 475     char *p_sdp       = NULL;
 476     int  i_http_port  = 0;
 477     int  i_ret        = VLC_SUCCESS;
 478
 479     /* Create the url using the port number if available */
 480     if( p_sys->url.i_port == 0 )
 481     {
 482         p_sys->url.i_port = 554;
 483         if( asprintf( &psz_url, "rtsp://%s", p_sys->psz_path ) == -1 )
 484             return VLC_ENOMEM;
 485     }
 486     else
 487     {
 488         if( asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 489                       p_sys->url.i_port, p_sys->url.psz_path ) == -1 )
 490             return VLC_ENOMEM;
 491     }
 492
 493     /* Get the user name and password */
 494     if( p_sys->url.psz_username || p_sys->url.psz_password )
 495     {
 496         psz_user = strdup( strempty( p_sys->url.psz_username ) );
 497         psz_pwd  = strdup( strempty( p_sys->url.psz_password ) );
 498     }
 499     else
 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         i_ret = VLC_EGENERIC;
 509         goto bailout;
 510     }
 511
 512     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 513         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 514
 515     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 516           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 517           "VLC media player", i_http_port ) ) == NULL )
 518     {
 519         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 520                  p_sys->env->getResultMsg() );
 521         i_ret = VLC_EGENERIC;
 522         goto bailout;
 523     }
 524
 525     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 526      * Appending _KA to the string should be enough to enable this feature,
 527      * however, there is a bug where the _KA doesn't get parsed from the
 528      * default User-Agent as created by VLC/Live555 code. This is probably due
 529      * to spaces in the string or the string being too long. Here we override
 530      * the default string with a more compact version.
 531      */
 532     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 533     {
 534         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 535     }
 536
 537 describe:
 538     authenticator.setUsernameAndPassword( psz_user, psz_pwd );
 539
 540     /* */
 541     { /* i_timeout hack scope */
 542 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 543     const int i_timeout = var_CreateGetInteger(p_demux, "ipv4-timeout") / 1000;
 544     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 545                                                &authenticator, i_timeout );
 546 #else
 547     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 548                                                &authenticator );
 549 #endif
 550     if( psz_options == NULL && authenticator.realm() != NULL )
 551     {
 552         // try again, with the realm set this time
 553 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 554         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 555                                                &authenticator, i_timeout );
 556 #else
 557         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 558                                                &authenticator );
 559 #endif
 560     }
 561     if( psz_options )
 562         p_sys->b_get_param = (bool)strstr( psz_options, "GET_PARAMETER" );
 563     delete [] psz_options;
 564
 565     if( var_CreateGetBool( p_demux, "rtsp-wmserver" ) )
 566        p_sys->b_get_param = true;
 567
 568 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 569     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, psz_user, psz_pwd,
 570                           var_GetBool( p_demux, "rtsp-kasenna" ), i_timeout );
 571 #else
 572     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, psz_user, psz_pwd,
 573                                      var_GetBool( p_demux, "rtsp-kasenna" ) );
 574 #endif
 575     } /* i_timeout scope end */
 576
 577     if( p_sdp == NULL )
 578     {
 579         /* failure occurred */
 580         int i_code = 0;
 581         const char *psz_error = p_sys->env->getResultMsg();
 582
 583         if( var_GetBool( p_demux, "rtsp-http" ) )
 584             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 585                     &i_code );
 586         else
 587         {
 588             const char *psz_tmp = strstr( psz_error, "RTSP" );
 589             if( psz_tmp )
 590                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 591             else
 592                 i_code = 0;
 593         }
 594         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 595
 596         if( i_code == 401 )
 597         {
 598             msg_Dbg( p_demux, "authentication failed" );
 599
 600             free( psz_user );
 601             free( psz_pwd );
 602             dialog_Login( p_demux, &psz_user, &psz_pwd,
 603                           _("RTSP authentication"), "%s",
 604                         _("Please enter a valid login name and a password.") );
 605             if( psz_user != NULL && psz_pwd != NULL )
 606             {
 607                 msg_Dbg( p_demux, "retrying with user=%s", psz_user );
 608                 goto describe;
 609             }
 610         }
 611         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 612         {
 613             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 614             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 615             var_SetBool( p_demux, "rtsp-http", true );
 616             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 617             p_sys->rtsp = NULL;
 618             goto createnew;
 619         }
 620         else
 621         {
 622             msg_Dbg( p_demux, "connection timeout" );
 623             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 624             p_sys->rtsp = NULL;
 625         }
 626         i_ret = VLC_EGENERIC;
 627     }
 628
 629     free( p_sys->p_sdp );
 630     p_sys->p_sdp = NULL;
 631     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 632     delete[] p_sdp;
 633
 634 bailout:
 635     /* malloc-ated copy */
 636     free( psz_url );
 637     free( psz_user );
 638     free( psz_pwd );
 639
 640     return i_ret;
 641 }
 642
 643 /*****************************************************************************
 644  * SessionsSetup: prepares the subsessions and does the SETUP
 645  *****************************************************************************/
 646 static int SessionsSetup( demux_t *p_demux )
 647 {
 648     demux_sys_t             *p_sys  = p_demux->p_sys;
 649     MediaSubsessionIterator *iter   = NULL;
 650     MediaSubsession         *sub    = NULL;
 651
 652     bool           b_rtsp_tcp = false;
 653     int            i_client_port;
 654     int            i_return = VLC_SUCCESS;
 655     unsigned int   i_buffer = 0;
 656     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 657
 658     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 659                     var_GetBool( p_demux, "rtsp-http" );
 660     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 661
 662     /* Create the session from the SDP */
 663     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 664     {
 665         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 666             p_sys->env->getResultMsg() );
 667         return VLC_EGENERIC;
 668     }
 669
 670     /* Initialise each media subsession */
 671     iter = new MediaSubsessionIterator( *p_sys->ms );
 672     while( ( sub = iter->next() ) != NULL )
 673     {
 674         Boolean bInit;
 675         live_track_t *tk;
 676
 677         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 678         {
 679             delete iter;
 680             return VLC_EGENERIC;
 681         }
 682
 683         /* Value taken from mplayer */
 684         if( !strcmp( sub->mediumName(), "audio" ) )
 685             i_buffer = 100000;
 686         else if( !strcmp( sub->mediumName(), "video" ) )
 687             i_buffer = 2000000;
 688         else if( !strcmp( sub->mediumName(), "text" ) )
 689             ;
 690         else continue;
 691
 692         if( i_client_port != -1 )
 693         {
 694             sub->setClientPortNum( i_client_port );
 695             i_client_port += 2;
 696         }
 697
 698         if( strcasestr( sub->codecName(), "REAL" ) )
 699         {
 700             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 701             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 702             continue;
 703         }
 704
 705         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 706             bInit = sub->initiate( 4 ); /* Constant ? */
 707         else
 708             bInit = sub->initiate();
 709
 710         if( !bInit )
 711         {
 712             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 713                       sub->mediumName(), sub->codecName(),
 714                       p_sys->env->getResultMsg() );
 715         }
 716         else
 717         {
 718             if( sub->rtpSource() != NULL )
 719             {
 720                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 721
 722                 /* Increase the buffer size */
 723                 if( i_buffer > 0 )
 724                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 725
 726                 /* Increase the RTP reorder timebuffer just a bit */
 727                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 728             }
 729             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 730                      sub->codecName() );
 731
 732             /* Issue the SETUP */
 733             if( p_sys->rtsp )
 734             {
 735                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 736                                                         toBool( b_rtsp_tcp ),
 737                              toBool( p_sys->b_force_mcast && !b_rtsp_tcp ) ) )
 738                 {
 739                     /* if we get an unsupported transport error, toggle TCP
 740                      * use and try again */
 741                     if( !strstr(p_sys->env->getResultMsg(),
 742                                 "461 Unsupported Transport")
 743                         || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 744                                                toBool( b_rtsp_tcp ), False ) )
 745                     {
 746                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s",
 747                                  sub->mediumName(), sub->codecName(),
 748                                  p_sys->env->getResultMsg() );
 749                         continue;
 750                     }
 751                 }
 752             }
 753
 754             /* Check if we will receive data from this subsession for
 755              * this track */
 756             if( sub->readSource() == NULL ) continue;
 757             if( !p_sys->b_multicast )
 758             {
 759                 /* We need different rollover behaviour for multicast */
 760                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 761             }
 762
 763             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 764             if( !tk )
 765             {
 766                 delete iter;
 767                 return VLC_ENOMEM;
 768             }
 769             tk->p_demux     = p_demux;
 770             tk->sub         = sub;
 771             tk->p_es        = NULL;
 772             tk->b_quicktime = false;
 773             tk->b_asf       = false;
 774             tk->b_muxed     = false;
 775             tk->b_discard_trunc = false;
 776             tk->p_out_muxed = NULL;
 777             tk->waiting     = 0;
 778             tk->b_rtcp_sync = false;
 779             tk->i_pts       = VLC_TS_INVALID;
 780             tk->i_npt       = 0.;
 781             tk->i_buffer    = 65536;
 782             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 783             if( !tk->p_buffer )
 784             {
 785                 free( tk );
 786                 delete iter;
 787                 return VLC_ENOMEM;
 788             }
 789
 790             /* Value taken from mplayer */
 791             if( !strcmp( sub->mediumName(), "audio" ) )
 792             {
 793                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 794                 tk->fmt.audio.i_channels = sub->numChannels();
 795                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 796
 797                 if( !strcmp( sub->codecName(), "MPA" ) ||
 798                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 799                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 800                 {
 801                     tk->fmt.i_codec = VLC_CODEC_MPGA;
 802                     tk->fmt.audio.i_rate = 0;
 803                 }
 804                 else if( !strcmp( sub->codecName(), "AC3" ) )
 805                 {
 806                     tk->fmt.i_codec = VLC_CODEC_A52;
 807                     tk->fmt.audio.i_rate = 0;
 808                 }
 809                 else if( !strcmp( sub->codecName(), "L16" ) )
 810                 {
 811                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 812                     tk->fmt.audio.i_bitspersample = 16;
 813                 }
 814                 else if( !strcmp( sub->codecName(), "L8" ) )
 815                 {
 816                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 817                     tk->fmt.audio.i_bitspersample = 8;
 818                 }
 819                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 820                 {
 821                     tk->fmt.i_codec = VLC_CODEC_MULAW;
 822                 }
 823                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 824                 {
 825                     tk->fmt.i_codec = VLC_CODEC_ALAW;
 826                 }
 827                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 828                 {
 829                     tk->fmt.i_codec = VLC_CODEC_ADPCM_G726;
 830                     tk->fmt.audio.i_rate = 8000;
 831                     tk->fmt.audio.i_channels = 1;
 832                     if( !strcmp( sub->codecName()+5, "40" ) )
 833                         tk->fmt.i_bitrate = 40000;
 834                     else if( !strcmp( sub->codecName()+5, "32" ) )
 835                         tk->fmt.i_bitrate = 32000;
 836                     else if( !strcmp( sub->codecName()+5, "24" ) )
 837                         tk->fmt.i_bitrate = 24000;
 838                     else if( !strcmp( sub->codecName()+5, "16" ) )
 839                         tk->fmt.i_bitrate = 16000;
 840                 }
 841                 else if( !strcmp( sub->codecName(), "AMR" ) )
 842                 {
 843                     tk->fmt.i_codec = VLC_CODEC_AMR_NB;
 844                 }
 845                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 846                 {
 847                     tk->fmt.i_codec = VLC_CODEC_AMR_WB;
 848                 }
 849                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 850                 {
 851                     unsigned int i_extra;
 852                     uint8_t      *p_extra;
 853
 854                     tk->fmt.i_codec = VLC_CODEC_MP4A;
 855
 856                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 857                                                              i_extra ) ) )
 858                     {
 859                         tk->fmt.i_extra = i_extra;
 860                         tk->fmt.p_extra = xmalloc( i_extra );
 861                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 862                         delete[] p_extra;
 863                     }
 864                     /* Because the "faad" decoder does not handle the LATM
 865                      * data length field at the start of each returned LATM
 866                      * frame, tell the RTP source to omit it. */
 867                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 868                 }
 869                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 870                 {
 871                     unsigned int i_extra;
 872                     uint8_t      *p_extra;
 873
 874                     tk->fmt.i_codec = VLC_CODEC_MP4A;
 875
 876                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 877                                                            i_extra ) ) )
 878                     {
 879                         tk->fmt.i_extra = i_extra;
 880                         tk->fmt.p_extra = xmalloc( i_extra );
 881                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 882                         delete[] p_extra;
 883                     }
 884                 }
 885                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 886                 {
 887                     tk->b_asf = true;
 888                     if( p_sys->p_out_asf == NULL )
 889                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 890                                                             p_demux->out );
 891                 }
 892                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 893                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 894                 {
 895                     tk->b_quicktime = true;
 896                 }
 897                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 898                 {
 899                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 900                     if ( sub->rtpTimestampFrequency() )
 901                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 902                     else
 903                     {
 904                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 905                         tk->fmt.audio.i_rate = 8000;
 906                     }
 907                 }
 908             }
 909             else if( !strcmp( sub->mediumName(), "video" ) )
 910             {
 911                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 912                 if( !strcmp( sub->codecName(), "MPV" ) )
 913                 {
 914                     tk->fmt.i_codec = VLC_CODEC_MPGV;
 915                 }
 916                 else if( !strcmp( sub->codecName(), "H263" ) ||
 917                          !strcmp( sub->codecName(), "H263-1998" ) ||
 918                          !strcmp( sub->codecName(), "H263-2000" ) )
 919                 {
 920                     tk->fmt.i_codec = VLC_CODEC_H263;
 921                 }
 922                 else if( !strcmp( sub->codecName(), "H261" ) )
 923                 {
 924                     tk->fmt.i_codec = VLC_CODEC_H261;
 925                 }
 926                 else if( !strcmp( sub->codecName(), "H264" ) )
 927                 {
 928                     unsigned int i_extra = 0;
 929                     uint8_t      *p_extra = NULL;
 930
 931                     tk->fmt.i_codec = VLC_CODEC_H264;
 932                     tk->fmt.b_packetized = false;
 933
 934                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 935                                                     i_extra ) ) )
 936                     {
 937                         tk->fmt.i_extra = i_extra;
 938                         tk->fmt.p_extra = xmalloc( i_extra );
 939                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 940
 941                         delete[] p_extra;
 942                     }
 943                 }
 944                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 945                 {
 946                     tk->fmt.i_codec = VLC_CODEC_MJPG;
 947                 }
 948                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 949                 {
 950                     unsigned int i_extra;
 951                     uint8_t      *p_extra;
 952
 953                     tk->fmt.i_codec = VLC_CODEC_MP4V;
 954
 955                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 956                                                            i_extra ) ) )
 957                     {
 958                         tk->fmt.i_extra = i_extra;
 959                         tk->fmt.p_extra = xmalloc( i_extra );
 960                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 961                         delete[] p_extra;
 962                     }
 963                 }
 964                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 965                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 966                          !strcmp( sub->codecName(), "X-QDM" ) ||
 967                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 968                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 969                 {
 970                     tk->b_quicktime = true;
 971                 }
 972                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 973                 {
 974                     tk->b_muxed = true;
 975                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 976                 }
 977                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 978                          !strcmp( sub->codecName(), "MP1S" ) )
 979                 {
 980                     tk->b_muxed = true;
 981                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 982                                                        p_demux->out );
 983                 }
 984                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 985                 {
 986                     tk->b_asf = true;
 987                     if( p_sys->p_out_asf == NULL )
 988                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 989                                                             p_demux->out );;
 990                 }
 991                 else if( !strcmp( sub->codecName(), "DV" ) )
 992                 {
 993                     tk->b_muxed = true;
 994                     tk->b_discard_trunc = true;
 995                     tk->p_out_muxed = stream_DemuxNew( p_demux, "rawdv",
 996                                                        p_demux->out );
 997                 }
 998             }
 999             else if( !strcmp( sub->mediumName(), "text" ) )
1000             {
1001                 es_format_Init( &tk->fmt, SPU_ES, VLC_FOURCC('u','n','d','f') );
1002
1003                 if( !strcmp( sub->codecName(), "T140" ) )
1004                 {
1005                     tk->fmt.i_codec = VLC_CODEC_ITU_T140;
1006                 }
1007             }
1008
1009             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
1010             {
1011                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1012             }
1013
1014             if( sub->rtcpInstance() != NULL )
1015             {
1016                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1017             }
1018
1019             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1020             {
1021                 /* Append */
1022                 p_sys->track = (live_track_t**)xrealloc( p_sys->track,
1023                             sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1024                 p_sys->track[p_sys->i_track++] = tk;
1025             }
1026             else
1027             {
1028                 /* BUG ??? */
1029                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1030                 es_format_Clean( &tk->fmt );
1031                 free( tk );
1032             }
1033         }
1034     }
1035     delete iter;
1036     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1037
1038     /* Retrieve the starttime if possible */
1039     p_sys->i_npt_start = p_sys->ms->playStartTime();
1040
1041     /* Retrieve the duration if possible */
1042     p_sys->i_npt_length = p_sys->ms->playEndTime();
1043
1044     /* */
1045     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1046
1047     /* */
1048     p_sys->b_no_data = true;
1049     p_sys->i_no_data_ti = 0;
1050
1051     return i_return;
1052 }
1053
1054 /*****************************************************************************
1055  * Play: starts the actual playback of the stream
1056  *****************************************************************************/
1057 static int Play( demux_t *p_demux )
1058 {
1059     demux_sys_t *p_sys = p_demux->p_sys;
1060
1061     if( p_sys->rtsp )
1062     {
1063         /* The PLAY */
1064         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1065         {
1066             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1067             return VLC_EGENERIC;
1068         }
1069
1070         /* Retrieve the timeout value and set up a timeout prevention thread */
1071         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1072         if( p_sys->i_timeout <= 0 )
1073             p_sys->i_timeout = 60; /* default value from RFC2326 */
1074
1075         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1076         if( !p_sys->p_timeout && p_sys->b_get_param )
1077         {
1078             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1079             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1080             if( p_sys->p_timeout )
1081             {
1082                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1083                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1084                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1085                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1086                 {
1087                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1088                     free( p_sys->p_timeout );
1089                     p_sys->p_timeout = NULL;
1090                 }
1091                 else
1092                     msg_Dbg( p_demux, "spawned timeout thread" );
1093             }
1094             else
1095                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1096         }
1097     }
1098     p_sys->i_pcr = 0;
1099
1100     /* Retrieve the starttime if possible */
1101     p_sys->i_npt_start = p_sys->ms->playStartTime();
1102     if( p_sys->ms->playEndTime() > 0 )
1103         p_sys->i_npt_length = p_sys->ms->playEndTime();
1104
1105     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1106     return VLC_SUCCESS;
1107 }
1108
1109
1110 /*****************************************************************************
1111  * Demux:
1112  *****************************************************************************/
1113 static int Demux( demux_t *p_demux )
1114 {
1115     demux_sys_t    *p_sys = p_demux->p_sys;
1116     TaskToken      task;
1117
1118     bool            b_send_pcr = true;
1119     int64_t         i_pcr = 0;
1120     int             i;
1121
1122     /* Check if we need to send the server a Keep-A-Live signal */
1123     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1124     {
1125         char *psz_bye = NULL;
1126         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1127         p_sys->b_timeout_call = false;
1128     }
1129
1130     for( i = 0; i < p_sys->i_track; i++ )
1131     {
1132         live_track_t *tk = p_sys->track[i];
1133
1134         if( tk->b_asf || tk->b_muxed )
1135             b_send_pcr = false;
1136 #if 0
1137         if( i_pcr == 0 )
1138         {
1139             i_pcr = tk->i_pts;
1140         }
1141         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1142         {
1143             i_pcr = tk->i_pts ;
1144         }
1145 #endif
1146     }
1147     if( p_sys->i_pcr > 0 )
1148     {
1149         if( b_send_pcr )
1150             es_out_Control( p_demux->out, ES_OUT_SET_PCR, 1 + p_sys->i_pcr );
1151     }
1152
1153     /* First warn we want to read data */
1154     p_sys->event = 0;
1155     for( i = 0; i < p_sys->i_track; i++ )
1156     {
1157         live_track_t *tk = p_sys->track[i];
1158
1159         if( tk->waiting == 0 )
1160         {
1161             tk->waiting = 1;
1162             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1163                                           StreamRead, tk, StreamClose, tk );
1164         }
1165     }
1166     /* Create a task that will be called if we wait more than 300ms */
1167     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1168
1169     /* Do the read */
1170     p_sys->scheduler->doEventLoop( &p_sys->event );
1171
1172     /* remove the task */
1173     p_sys->scheduler->unscheduleDelayedTask( task );
1174
1175     /* Check for gap in pts value */
1176     for( i = 0; i < p_sys->i_track; i++ )
1177     {
1178         live_track_t *tk = p_sys->track[i];
1179
1180         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1181             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1182         {
1183             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1184
1185             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1186             tk->b_rtcp_sync = true;
1187             /* reset PCR */
1188             tk->i_pts = VLC_TS_INVALID;
1189             tk->i_npt = 0.;
1190             p_sys->i_pcr = 0;
1191             p_sys->i_npt = 0.;
1192             i_pcr = 0;
1193         }
1194     }
1195
1196     if( p_sys->b_multicast && p_sys->b_no_data &&
1197         ( p_sys->i_no_data_ti > 120 ) )
1198     {
1199         /* FIXME Make this configurable
1200         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1201         return 0;
1202         */
1203     }
1204     else if( !p_sys->b_multicast && !p_sys->b_paused &&
1205               p_sys->b_no_data && ( p_sys->i_no_data_ti > 34 ) )
1206     {
1207         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1208                                 var_GetBool( p_demux, "rtsp-http" );
1209
1210         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1211         {
1212             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1213             if( RollOverTcp( p_demux ) )
1214             {
1215                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1216                 return 0;
1217             }
1218             return 1;
1219         }
1220         msg_Err( p_demux, "no data received in 10s, aborting" );
1221         return 0;
1222     }
1223     else if( !p_sys->b_multicast && !p_sys->b_paused &&
1224              ( p_sys->i_no_data_ti > 34 ) )
1225     {
1226         /* EOF ? */
1227         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1228         return 0;
1229     }
1230     return p_demux->b_error ? 0 : 1;
1231 }
1232
1233 /*****************************************************************************
1234  * Control:
1235  *****************************************************************************/
1236 static int Control( demux_t *p_demux, int i_query, va_list args )
1237 {
1238     demux_sys_t *p_sys = p_demux->p_sys;
1239     int64_t *pi64, i64;
1240     double  *pf, f;
1241     bool *pb, *pb2;
1242     int *pi_int;
1243
1244     switch( i_query )
1245     {
1246         case DEMUX_GET_TIME:
1247             pi64 = (int64_t*)va_arg( args, int64_t * );
1248             if( p_sys->i_npt > 0 )
1249             {
1250                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1251                 return VLC_SUCCESS;
1252             }
1253             return VLC_EGENERIC;
1254
1255         case DEMUX_GET_LENGTH:
1256             pi64 = (int64_t*)va_arg( args, int64_t * );
1257             if( p_sys->i_npt_length > 0 )
1258             {
1259                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1260                 return VLC_SUCCESS;
1261             }
1262             return VLC_EGENERIC;
1263
1264         case DEMUX_GET_POSITION:
1265             pf = (double*)va_arg( args, double* );
1266             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1267             {
1268                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1269                 return VLC_SUCCESS;
1270             }
1271             return VLC_EGENERIC;
1272
1273         case DEMUX_SET_POSITION:
1274         case DEMUX_SET_TIME:
1275             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1276             {
1277                 int i;
1278                 float time;
1279
1280                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1281                 {
1282                     i64 = (int64_t)va_arg( args, int64_t );
1283                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1284                 }
1285                 else if( i_query == DEMUX_SET_TIME )
1286                     return VLC_EGENERIC;
1287                 else
1288                 {
1289                     f = (double)va_arg( args, double );
1290                     time = f * (double)p_sys->i_npt_length;   /* in second */
1291                 }
1292
1293                 if( p_sys->b_paused )
1294                 {
1295                     p_sys->f_seek_request = time;
1296                     return VLC_SUCCESS;
1297                 }
1298
1299                 if( !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) )
1300                 {
1301                     msg_Err( p_demux, "PAUSE before seek failed %s",
1302                         p_sys->env->getResultMsg() );
1303                     return VLC_EGENERIC;
1304                 }
1305                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1306                 {
1307                     msg_Err( p_demux, "seek PLAY failed %s",
1308                         p_sys->env->getResultMsg() );
1309                     return VLC_EGENERIC;
1310                 }
1311                 p_sys->i_pcr = 0;
1312
1313                 /* Retrieve RTP-Info values */
1314                 for( i = 0; i < p_sys->i_track; i++ )
1315                 {
1316                     p_sys->track[i]->b_rtcp_sync = false;
1317                     p_sys->track[i]->i_pts = VLC_TS_INVALID;
1318                 }
1319
1320                 /* Retrieve the starttime if possible */
1321                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1322
1323                 /* Retrieve the duration if possible */
1324                 if( p_sys->ms->playEndTime() > 0 )
1325                     p_sys->i_npt_length = p_sys->ms->playEndTime();
1326
1327                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1328                 return VLC_SUCCESS;
1329             }
1330             return VLC_EGENERIC;
1331
1332         /* Special for access_demux */
1333         case DEMUX_CAN_PAUSE:
1334         case DEMUX_CAN_SEEK:
1335             pb = (bool*)va_arg( args, bool * );
1336             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1337                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1338                 *pb = true;
1339             else
1340                 *pb = false;
1341             return VLC_SUCCESS;
1342
1343         case DEMUX_CAN_CONTROL_PACE:
1344             pb = (bool*)va_arg( args, bool * );
1345
1346 #if 1       /* Disable for now until we have a clock synchro algo
1347              * which works with something else than MPEG over UDP */
1348             *pb = false;
1349 #else
1350             *pb = true;
1351 #endif
1352             return VLC_SUCCESS;
1353
1354         case DEMUX_CAN_CONTROL_RATE:
1355             pb = (bool*)va_arg( args, bool * );
1356             pb2 = (bool*)va_arg( args, bool * );
1357
1358             *pb = (p_sys->rtsp != NULL) &&
1359                     (p_sys->i_npt_length > 0) &&
1360                     ( !var_GetBool( p_demux, "rtsp-kasenna" ) ||
1361                       !var_GetBool( p_demux, "rtsp-wmserver" ) );
1362             *pb2 = false;
1363             return VLC_SUCCESS;
1364
1365         case DEMUX_SET_RATE:
1366         {
1367             double f_scale, f_old_scale;
1368
1369             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1370                 var_GetBool( p_demux, "rtsp-kasenna" ) ||
1371                 var_GetBool( p_demux, "rtsp-wmserver" ) )
1372                 return VLC_EGENERIC;
1373
1374             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1375              * supports Scale:
1376              *
1377              * "[...] should try to approximate the viewing rate, but
1378              *  may restrict the range of scale values that it supports.
1379              *  The response MUST contain the actual scale value chosen
1380              *  by the server."
1381              *
1382              * Scale = 1 indicates normal play
1383              * Scale > 1 indicates fast forward
1384              * Scale < 1 && Scale > 0 indicates slow motion
1385              * Scale < 0 value indicates rewind
1386              */
1387
1388             pi_int = (int*)va_arg( args, int * );
1389             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1390             f_old_scale = p_sys->ms->scale();
1391
1392             /* Passing -1 for the start and end time will mean liveMedia won't
1393              * create a Range: section for the RTSP message. The server should
1394              * pick up from the current position */
1395             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1396             {
1397                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1398                         p_sys->env->getResultMsg() );
1399                 return VLC_EGENERIC;
1400             }
1401
1402             if( p_sys->ms->scale() == f_old_scale )
1403             {
1404                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1405                           p_sys->ms->scale() );
1406                 return VLC_EGENERIC;
1407             }
1408
1409             /* ReSync the stream */
1410             p_sys->i_npt_start = 0;
1411             p_sys->i_pcr = 0;
1412             p_sys->i_npt = 0.0;
1413
1414             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1415             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1416             return VLC_SUCCESS;
1417         }
1418
1419         case DEMUX_SET_PAUSE_STATE:
1420         {
1421             bool b_pause = (bool)va_arg( args, int );
1422             if( p_sys->rtsp == NULL )
1423                 return VLC_EGENERIC;
1424
1425             if( b_pause == p_sys->b_paused )
1426                 return VLC_SUCCESS;
1427             if( ( b_pause && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1428                     ( !b_pause && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1429                        p_sys->f_seek_request ) ) )
1430             {
1431                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1432                     return VLC_EGENERIC;
1433             }
1434             p_sys->f_seek_request = -1;
1435             p_sys->b_paused = b_pause;
1436
1437             /* When we Pause, we'll need the TimeoutPrevention thread to
1438              * handle sending the "Keep Alive" message to the server.
1439              * Unfortunately Live555 isn't thread safe and so can't
1440              * do this normally while the main Demux thread is handling
1441              * a live stream. We end up with the Timeout thread blocking
1442              * waiting for a response from the server. So when we PAUSE
1443              * we set a flag that the TimeoutPrevention function will check
1444              * and if it's set, it will trigger the GET_PARAMETER message */
1445             if( p_sys->b_paused && p_sys->p_timeout != NULL )
1446                 p_sys->p_timeout->b_handle_keep_alive = true;
1447             else if( !p_sys->b_paused && p_sys->p_timeout != NULL )
1448                 p_sys->p_timeout->b_handle_keep_alive = false;
1449
1450             if( !p_sys->b_paused )
1451             {
1452                 for( int i = 0; i < p_sys->i_track; i++ )
1453                 {
1454                     live_track_t *tk = p_sys->track[i];
1455                     tk->b_rtcp_sync = false;
1456                     tk->i_pts = VLC_TS_INVALID;
1457                     p_sys->i_pcr = 0;
1458                     es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1459                 }
1460             }
1461
1462             /* Reset data received counter */
1463             p_sys->i_no_data_ti = 0;
1464
1465             /* Retrieve the starttime if possible */
1466             p_sys->i_npt_start = p_sys->ms->playStartTime();
1467
1468             /* Retrieve the duration if possible */
1469             if( p_sys->ms->playEndTime() )
1470                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1471
1472             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1473             return VLC_SUCCESS;
1474         }
1475         case DEMUX_GET_TITLE_INFO:
1476         case DEMUX_SET_TITLE:
1477         case DEMUX_SET_SEEKPOINT:
1478             return VLC_EGENERIC;
1479
1480         case DEMUX_GET_PTS_DELAY:
1481             pi64 = (int64_t*)va_arg( args, int64_t * );
1482             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1483             return VLC_SUCCESS;
1484
1485         default:
1486             return VLC_EGENERIC;
1487     }
1488 }
1489
1490 /*****************************************************************************
1491  * RollOverTcp: reopen the rtsp into TCP mode
1492  * XXX: ugly, a lot of code are duplicated from Open()
1493  * This should REALLY be fixed
1494  *****************************************************************************/
1495 static int RollOverTcp( demux_t *p_demux )
1496 {
1497     demux_sys_t *p_sys = p_demux->p_sys;
1498     int i, i_return;
1499
1500     var_SetBool( p_demux, "rtsp-tcp", true );
1501
1502     /* We close the old RTSP session */
1503     for( i = 0; i < p_sys->i_track; i++ )
1504     {
1505         live_track_t *tk = p_sys->track[i];
1506
1507         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1508         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1509         es_format_Clean( &tk->fmt );
1510         free( tk->p_buffer );
1511         free( tk );
1512     }
1513     if( p_sys->i_track ) free( p_sys->track );
1514     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1515
1516     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1517     Medium::close( p_sys->ms );
1518     RTSPClient::close( p_sys->rtsp );
1519
1520     p_sys->ms = NULL;
1521     p_sys->rtsp = NULL;
1522     p_sys->track = NULL;
1523     p_sys->i_track = 0;
1524     p_sys->b_no_data = true;
1525     p_sys->i_no_data_ti = 0;
1526
1527     /* Reopen rtsp client */
1528     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1529     {
1530         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1531                  p_sys->psz_path );
1532         goto error;
1533     }
1534
1535     if( p_sys->p_sdp == NULL )
1536     {
1537         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1538         goto error;
1539     }
1540
1541     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1542     {
1543         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1544         goto error;
1545     }
1546
1547     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1548         goto error;
1549
1550     return VLC_SUCCESS;
1551
1552 error:
1553     return VLC_EGENERIC;
1554 }
1555
1556
1557 /*****************************************************************************
1558  *
1559  *****************************************************************************/
1560 static void StreamRead( void *p_private, unsigned int i_size,
1561                         unsigned int i_truncated_bytes, struct timeval pts,
1562                         unsigned int duration )
1563 {
1564     live_track_t   *tk = (live_track_t*)p_private;
1565     demux_t        *p_demux = tk->p_demux;
1566     demux_sys_t    *p_sys = p_demux->p_sys;
1567     block_t        *p_block;
1568
1569     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1570
1571     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1572         (int64_t)pts.tv_usec;
1573
1574     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1575     i_pts &= INT64_C(0x00ffffffffffffff);
1576
1577     /* Retrieve NPT for this pts */
1578     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1579
1580     if( tk->b_quicktime && tk->p_es == NULL )
1581     {
1582         QuickTimeGenericRTPSource *qtRTPSource =
1583             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1584         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1585         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1586
1587         if( tk->fmt.i_cat == VIDEO_ES ) {
1588             if( qtState.sdAtomSize < 16 + 32 )
1589             {
1590                 /* invalid */
1591                 p_sys->event = 0xff;
1592                 tk->waiting = 0;
1593                 return;
1594             }
1595             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1596             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1597             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1598
1599             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1600             {
1601                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1602                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1603                                   + qtRTPSource->qtState.sdAtomSize;
1604                 while (pos+8 < endpos) {
1605                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1606                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1607                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1608                         atomLength > 8 &&
1609                         atomLength <= INT_MAX )
1610                     {
1611                         tk->fmt.i_extra = atomLength-8;
1612                         tk->fmt.p_extra = xmalloc( tk->fmt.i_extra );
1613                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1614                         break;
1615                     }
1616                     pos += atomLength;
1617                 }
1618             }
1619             else
1620             {
1621                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1622                 tk->fmt.p_extra        = xmalloc( tk->fmt.i_extra );
1623                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1624             }
1625         }
1626         else {
1627             if( qtState.sdAtomSize < 4 )
1628             {
1629                 /* invalid */
1630                 p_sys->event = 0xff;
1631                 tk->waiting = 0;
1632                 return;
1633             }
1634             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1635         }
1636         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1637     }
1638
1639 #if 0
1640     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1641              i_size,
1642              pts.tv_sec * 1000000LL + pts.tv_usec );
1643 #endif
1644
1645     /* grow buffer if it looks like buffer is too small, but don't eat
1646      * up all the memory on strange streams */
1647     if( i_truncated_bytes > 0 )
1648     {
1649         if( tk->i_buffer < 2000000 )
1650         {
1651             void *p_tmp;
1652             msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1653             msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1654             p_tmp = realloc( tk->p_buffer, tk->i_buffer * 2 );
1655             if( p_tmp == NULL )
1656             {
1657                 msg_Warn( p_demux, "realloc failed" );
1658             }
1659             else
1660             {
1661                 tk->p_buffer = (uint8_t*)p_tmp;
1662                 tk->i_buffer *= 2;
1663             }
1664         }
1665
1666         if( tk->b_discard_trunc )
1667         {
1668             p_sys->event = 0xff;
1669             tk->waiting = 0;
1670             return;
1671         }
1672     }
1673
1674     assert( i_size <= tk->i_buffer );
1675
1676     if( tk->fmt.i_codec == VLC_CODEC_AMR_NB ||
1677         tk->fmt.i_codec == VLC_CODEC_AMR_WB )
1678     {
1679         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1680
1681         p_block = block_New( p_demux, i_size + 1 );
1682         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1683         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1684     }
1685     else if( tk->fmt.i_codec == VLC_CODEC_H261 )
1686     {
1687         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1688         uint32_t header = h261Source->lastSpecialHeader();
1689         p_block = block_New( p_demux, i_size + 4 );
1690         memcpy( p_block->p_buffer, &header, 4 );
1691         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1692
1693         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1694             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1695     }
1696     else if( tk->fmt.i_codec == VLC_CODEC_H264 )
1697     {
1698         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1699             msg_Warn( p_demux, "unsupported NAL type for H264" );
1700
1701         /* Normal NAL type */
1702         p_block = block_New( p_demux, i_size + 4 );
1703         p_block->p_buffer[0] = 0x00;
1704         p_block->p_buffer[1] = 0x00;
1705         p_block->p_buffer[2] = 0x00;
1706         p_block->p_buffer[3] = 0x01;
1707         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1708     }
1709     else if( tk->b_asf )
1710     {
1711         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1712         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1713
1714         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1715     }
1716     else
1717     {
1718         p_block = block_New( p_demux, i_size );
1719         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1720     }
1721
1722     if( p_sys->i_pcr < i_pts )
1723     {
1724         p_sys->i_pcr = i_pts;
1725     }
1726
1727     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1728     {
1729         p_block->i_pts = VLC_TS_0 + i_pts;
1730     }
1731
1732     /* Update our global npt value */
1733     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1734         p_sys->i_npt = tk->i_npt;
1735
1736     if( !tk->b_muxed )
1737     {
1738         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1739         p_block->i_dts = ( tk->fmt.i_codec == VLC_CODEC_MPGV ) ? VLC_TS_INVALID : (VLC_TS_0 + i_pts);
1740     }
1741
1742     if( tk->b_muxed )
1743     {
1744         stream_DemuxSend( tk->p_out_muxed, p_block );
1745     }
1746     else if( tk->b_asf )
1747     {
1748         stream_DemuxSend( p_sys->p_out_asf, p_block );
1749     }
1750     else
1751     {
1752         es_out_Send( p_demux->out, tk->p_es, p_block );
1753     }
1754
1755     /* warn that's ok */
1756     p_sys->event = 0xff;
1757
1758     /* we have read data */
1759     tk->waiting = 0;
1760     p_demux->p_sys->b_no_data = false;
1761     p_demux->p_sys->i_no_data_ti = 0;
1762
1763     if( i_pts > 0 && !tk->b_muxed )
1764     {
1765         tk->i_pts = i_pts;
1766     }
1767 }
1768
1769 /*****************************************************************************
1770  *
1771  *****************************************************************************/
1772 static void StreamClose( void *p_private )
1773 {
1774     live_track_t   *tk = (live_track_t*)p_private;
1775     demux_t        *p_demux = tk->p_demux;
1776     demux_sys_t    *p_sys = p_demux->p_sys;
1777
1778     msg_Dbg( p_demux, "StreamClose" );
1779
1780     p_sys->event = 0xff;
1781     p_demux->b_error = true;
1782 }
1783
1784
1785 /*****************************************************************************
1786  *
1787  *****************************************************************************/
1788 static void TaskInterrupt( void *p_private )
1789 {
1790     demux_t *p_demux = (demux_t*)p_private;
1791
1792     p_demux->p_sys->i_no_data_ti++;
1793
1794     /* Avoid lock */
1795     p_demux->p_sys->event = 0xff;
1796 }
1797
1798 /*****************************************************************************
1799  *
1800  *****************************************************************************/
1801 static void* TimeoutPrevention( void *p_data )
1802 {
1803     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1804
1805     for( ;; )
1806     {
1807         /* Voodoo (= no) thread safety here! *Ahem* */
1808         if( p_timeout->b_handle_keep_alive )
1809         {
1810             char *psz_bye = NULL;
1811             int canc = vlc_savecancel ();
1812
1813             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1814             vlc_restorecancel (canc);
1815         }
1816         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1817
1818         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1819     }
1820     assert(0); /* dead code */
1821 }
1822
1823 /*****************************************************************************
1824  *
1825  *****************************************************************************/
1826 static int ParseASF( demux_t *p_demux )
1827 {
1828     demux_sys_t    *p_sys = p_demux->p_sys;
1829
1830     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1831     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1832     char *psz_end;
1833     block_t *p_header;
1834
1835     /* Parse the asf header */
1836     if( psz_asf == NULL )
1837         return VLC_EGENERIC;
1838
1839     psz_asf += strlen( psz_marker );
1840     psz_asf = strdup( psz_asf );    /* Duplicate it */
1841     psz_end = strchr( psz_asf, '\n' );
1842
1843     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1844         *psz_end-- = '\0';
1845
1846     if( psz_asf >= psz_end )
1847     {
1848         free( psz_asf );
1849         return VLC_EGENERIC;
1850     }
1851
1852     /* Always smaller */
1853     p_header = block_New( p_demux, psz_end - psz_asf );
1854     p_header->i_buffer = vlc_b64_decode_binary_to_buffer( p_header->p_buffer,
1855                                                p_header->i_buffer, psz_asf );
1856     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1857     if( p_header->i_buffer <= 0 )
1858     {
1859         free( psz_asf );
1860         return VLC_EGENERIC;
1861     }
1862
1863     /* Parse it to get packet size */
1864     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1865
1866     /* Send it to demuxer */
1867     stream_DemuxSend( p_sys->p_out_asf, p_header );
1868
1869     free( psz_asf );
1870     return VLC_SUCCESS;
1871 }
1872
1873
1874 static unsigned char* parseH264ConfigStr( char const* configStr,
1875                                           unsigned int& configSize )
1876 {
1877     char *dup, *psz;
1878     size_t i_records = 1;
1879
1880     configSize = 0;
1881
1882     if( configStr == NULL || *configStr == '\0' )
1883         return NULL;
1884
1885     psz = dup = strdup( configStr );
1886
1887     /* Count the number of commas */
1888     for( psz = dup; *psz != '\0'; ++psz )
1889     {
1890         if( *psz == ',')
1891         {
1892             ++i_records;
1893             *psz = '\0';
1894         }
1895     }
1896
1897     size_t configMax = 5*strlen(dup);
1898     unsigned char *cfg = new unsigned char[configMax];
1899     psz = dup;
1900     for( size_t i = 0; i < i_records; ++i )
1901     {
1902         cfg[configSize++] = 0x00;
1903         cfg[configSize++] = 0x00;
1904         cfg[configSize++] = 0x00;
1905         cfg[configSize++] = 0x01;
1906
1907         configSize += vlc_b64_decode_binary_to_buffer( cfg+configSize,
1908                                           configMax-configSize, psz );
1909         psz += strlen(psz)+1;
1910     }
1911
1912     free( dup );
1913     return cfg;
1914 }