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_network.h>
  47 #include <vlc_url.h>
  48 #include <vlc_strings.h>
  49
  50 #include <iostream>
  51 #include <limits.h>
  52 #include <assert.h>
  53
  54
  55 #if defined( WIN32 )
  56 #   include <winsock2.h>
  57 #endif
  58
  59 #include "UsageEnvironment.hh"
  60 #include "BasicUsageEnvironment.hh"
  61 #include "GroupsockHelper.hh"
  62 #include "liveMedia.hh"
  63
  64 extern "C" {
  65 #include "../access/mms/asf.h"  /* Who said ugly ? */
  66 }
  67
  68 using namespace std;
  69
  70 /*****************************************************************************
  71  * Module descriptor
  72  *****************************************************************************/
  73 static int  Open ( vlc_object_t * );
  74 static void Close( vlc_object_t * );
  75
  76 #define CACHING_TEXT N_("Caching value (ms)")
  77 #define CACHING_LONGTEXT N_( \
  78     "Allows you to modify the default caching value for RTSP streams. This " \
  79     "value should be set in millisecond units." )
  80
  81 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  82 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and nonstandard " \
  83     "dialect of RTSP. With this parameter VLC will try this dialect, but "\
  84     "then it cannot connect to normal RTSP servers." )
  85
  86 #define USER_TEXT N_("RTSP user name")
  87 #define USER_LONGTEXT N_("Sets the username for the connection, " \
  88     "if no username or password are set in the url.")
  89 #define PASS_TEXT N_("RTSP password")
  90 #define PASS_LONGTEXT N_("Sets the password for the connection, " \
  91     "if no username or password are set in the url.")
  92
  93 vlc_module_begin ()
  94     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
  95     set_capability( "demux", 50 )
  96     set_shortname( "RTP/RTSP")
  97     set_callbacks( Open, Close )
  98     add_shortcut( "live" )
  99     add_shortcut( "livedotcom" )
 100     set_category( CAT_INPUT )
 101     set_subcategory( SUBCAT_INPUT_DEMUX )
 102
 103     add_submodule ()
 104         set_description( N_("RTSP/RTP access and demux") )
 105         add_shortcut( "rtsp" )
 106         add_shortcut( "sdp" )
 107         add_shortcut( "live" )
 108         add_shortcut( "livedotcom" )
 109         set_capability( "access_demux", 0 )
 110         set_callbacks( Open, Close )
 111         add_bool( "rtsp-tcp", 0, NULL,
 112                   N_("Use RTP over RTSP (TCP)"),
 113                   N_("Use RTP over RTSP (TCP)"), true )
 114             change_safe()
 115         add_integer( "rtp-client-port", -1, NULL,
 116                   N_("Client port"),
 117                   N_("Port to use for the RTP source of the session"), true )
 118         add_bool( "rtsp-mcast", false, NULL,
 119                   N_("Force multicast RTP via RTSP"),
 120                   N_("Force multicast RTP via RTSP"), true )
 121             change_safe()
 122         add_bool( "rtsp-http", 0, NULL,
 123                   N_("Tunnel RTSP and RTP over HTTP"),
 124                   N_("Tunnel RTSP and RTP over HTTP"), true )
 125             change_safe()
 126         add_integer( "rtsp-http-port", 80, NULL,
 127                   N_("HTTP tunnel port"),
 128                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 129                   true )
 130         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 131                     CACHING_TEXT, CACHING_LONGTEXT, true )
 132             change_safe()
 133         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 134                     KASENNA_LONGTEXT, true )
 135         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 136                     USER_LONGTEXT, true )
 137         add_password( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 138                       PASS_LONGTEXT, true )
 139 vlc_module_end ()
 140
 141
 142 /*****************************************************************************
 143  * Local prototypes
 144  *****************************************************************************/
 145
 146 typedef struct
 147 {
 148     demux_t         *p_demux;
 149     MediaSubsession *sub;
 150
 151     es_format_t     fmt;
 152     es_out_id_t     *p_es;
 153
 154     bool            b_muxed;
 155     bool            b_quicktime;
 156     bool            b_asf;
 157     bool            b_discard_trunc;
 158     stream_t        *p_out_muxed;    /* for muxed stream */
 159
 160     uint8_t         *p_buffer;
 161     unsigned int    i_buffer;
 162
 163     bool            b_rtcp_sync;
 164     char            waiting;
 165     int64_t         i_pts;
 166     float           i_npt;
 167
 168 } live_track_t;
 169
 170 struct timeout_thread_t
 171 {
 172     demux_sys_t  *p_sys;
 173     vlc_thread_t handle;
 174     bool         b_handle_keep_alive;
 175 };
 176
 177 struct demux_sys_t
 178 {
 179     char            *p_sdp;    /* XXX mallocated */
 180     char            *psz_path; /* URL-encoded path */
 181     vlc_url_t       url;
 182
 183     MediaSession     *ms;
 184     TaskScheduler    *scheduler;
 185     UsageEnvironment *env ;
 186     RTSPClient       *rtsp;
 187
 188     /* */
 189     int              i_track;
 190     live_track_t     **track;   /* XXX mallocated */
 191
 192     /* Weird formats */
 193     asf_header_t     asfh;
 194     stream_t         *p_out_asf;
 195     bool             b_real;
 196
 197     /* */
 198     int64_t          i_pcr; /* The clock */
 199     float            i_npt;
 200     float            i_npt_length;
 201     float            i_npt_start;
 202
 203     /* timeout thread information */
 204     int              i_timeout;     /* session timeout value in seconds */
 205     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 206     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 207
 208     /* */
 209     bool             b_force_mcast;
 210     bool             b_multicast;   /* if one of the tracks is multicasted */
 211     bool             b_no_data;     /* if we never received any data */
 212     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 213
 214     char             event;
 215
 216     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 217 };
 218
 219 static int Demux  ( demux_t * );
 220 static int Control( demux_t *, int, va_list );
 221
 222 static int Connect      ( demux_t * );
 223 static int SessionsSetup( demux_t * );
 224 static int Play         ( demux_t *);
 225 static int ParseASF     ( demux_t * );
 226 static int RollOverTcp  ( demux_t * );
 227
 228 static void StreamRead  ( void *, unsigned int, unsigned int,
 229                           struct timeval, unsigned int );
 230 static void StreamClose ( void * );
 231 static void TaskInterrupt( void * );
 232
 233 static void* TimeoutPrevention( void * );
 234
 235 static unsigned char* parseH264ConfigStr( char const* configStr,
 236                                           unsigned int& configSize );
 237
 238 /*****************************************************************************
 239  * DemuxOpen:
 240  *****************************************************************************/
 241 static int  Open ( vlc_object_t *p_this )
 242 {
 243     demux_t     *p_demux = (demux_t*)p_this;
 244     demux_sys_t *p_sys = NULL;
 245
 246     int i, i_return;
 247     int i_error = VLC_EGENERIC;
 248
 249     if( p_demux->s )
 250     {
 251         /* See if it looks like a SDP
 252            v, o, s fields are mandatory and in this order */
 253         const uint8_t *p_peek;
 254         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 255
 256         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 257             memcmp( p_peek, "v=0\n", 4 ) &&
 258             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 259         {
 260             return VLC_EGENERIC;
 261         }
 262     }
 263     else
 264     {
 265         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 266     }
 267
 268     p_demux->pf_demux  = Demux;
 269     p_demux->pf_control= Control;
 270     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 271     if( !p_sys ) return VLC_ENOMEM;
 272
 273     p_sys->p_sdp = NULL;
 274     p_sys->scheduler = NULL;
 275     p_sys->env = NULL;
 276     p_sys->ms = NULL;
 277     p_sys->rtsp = NULL;
 278     p_sys->i_track = 0;
 279     p_sys->track   = NULL;
 280     p_sys->i_pcr = 0;
 281     p_sys->i_npt = 0.;
 282     p_sys->i_npt_start = 0.;
 283     p_sys->i_npt_length = 0.;
 284     p_sys->p_out_asf = NULL;
 285     p_sys->b_no_data = true;
 286     p_sys->i_no_data_ti = 0;
 287     p_sys->p_timeout = NULL;
 288     p_sys->i_timeout = 0;
 289     p_sys->b_timeout_call = false;
 290     p_sys->b_multicast = false;
 291     p_sys->b_real = false;
 292     p_sys->psz_path = strdup( p_demux->psz_path );
 293     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 294     p_sys->b_get_param = false;
 295
 296     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 297     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 298
 299     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 300     {
 301         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 302         goto error;
 303     }
 304     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 305     {
 306         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 307         goto error;
 308     }
 309
 310     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 311     {
 312         char *p = p_sys->psz_path;
 313         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 314     }
 315
 316     if( p_demux->s != NULL )
 317     {
 318         /* Gather the complete sdp file */
 319         int     i_sdp       = 0;
 320         int     i_sdp_max   = 1000;
 321         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 322
 323         if( !p_sdp )
 324         {
 325             i_error = VLC_ENOMEM;
 326             goto error;
 327         }
 328
 329         for( ;; )
 330         {
 331             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 332                                       i_sdp_max - i_sdp - 1 );
 333
 334             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 335             {
 336                 free( p_sdp );
 337                 goto error;
 338             }
 339
 340             if( i_read < 0 )
 341             {
 342                 msg_Err( p_demux, "failed to read SDP" );
 343                 free( p_sdp );
 344                 goto error;
 345             }
 346
 347             i_sdp += i_read;
 348
 349             if( i_read < i_sdp_max - i_sdp - 1 )
 350             {
 351                 p_sdp[i_sdp] = '\0';
 352                 break;
 353             }
 354
 355             i_sdp_max += 1000;
 356             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 357         }
 358         p_sys->p_sdp = (char*)p_sdp;
 359     }
 360     else if( ( p_demux->s == NULL ) &&
 361              !strcasecmp( p_demux->psz_access, "sdp" ) )
 362     {
 363         /* sdp:// link from SAP */
 364         p_sys->p_sdp = strdup( p_sys->psz_path );
 365     }
 366     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 367     {
 368         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 369         goto error;
 370     }
 371
 372     if( p_sys->p_sdp == NULL )
 373     {
 374         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 375         i_error = VLC_ENOMEM;
 376         goto error;
 377     }
 378
 379     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 380     {
 381         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 382         goto error;
 383     }
 384
 385     if( p_sys->b_real ) goto error;
 386
 387     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 388         goto error;
 389
 390     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 391     {
 392         msg_Err( p_demux, "cannot find a usable asf header" );
 393         /* TODO Clean tracks */
 394         goto error;
 395     }
 396
 397     if( p_sys->i_track <= 0 )
 398         goto error;
 399
 400     return VLC_SUCCESS;
 401
 402 error:
 403     Close( p_this );
 404     return i_error;
 405 }
 406
 407 /*****************************************************************************
 408  * DemuxClose:
 409  *****************************************************************************/
 410 static void Close( vlc_object_t *p_this )
 411 {
 412     demux_t *p_demux = (demux_t*)p_this;
 413     demux_sys_t *p_sys = p_demux->p_sys;
 414     int i;
 415
 416     for( i = 0; i < p_sys->i_track; i++ )
 417     {
 418         live_track_t *tk = p_sys->track[i];
 419
 420         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 421         es_format_Clean( &tk->fmt );
 422         free( tk->p_buffer );
 423         free( tk );
 424     }
 425
 426     if( p_sys->i_track ) free( p_sys->track );
 427     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 428     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 429     if( p_sys->p_timeout )
 430     {
 431         vlc_cancel( p_sys->p_timeout->handle );
 432         vlc_join( p_sys->p_timeout->handle, NULL );
 433         free( p_sys->p_timeout );
 434     }
 435     if( p_sys->ms ) Medium::close( p_sys->ms );
 436     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 437     if( p_sys->env ) p_sys->env->reclaim();
 438     delete p_sys->scheduler;
 439     free( p_sys->p_sdp );
 440     free( p_sys->psz_path );
 441
 442     vlc_UrlClean( &p_sys->url );
 443
 444     free( p_sys );
 445 }
 446
 447 /*****************************************************************************
 448  * Connect: connects to the RTSP server to setup the session DESCRIBE
 449  *****************************************************************************/
 450 static int Connect( demux_t *p_demux )
 451 {
 452     demux_sys_t *p_sys = p_demux->p_sys;
 453     Authenticator authenticator;
 454     bool b_firstpass  = true;
 455     char *psz_user    = NULL;
 456     char *psz_pwd     = NULL;
 457     char *psz_url     = NULL;
 458     char *psz_options = NULL;
 459     char *p_sdp       = NULL;
 460     int  i_http_port  = 0;
 461     int  i_ret        = VLC_SUCCESS;
 462
 463     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 464     if( p_sys->url.psz_username && p_sys->url.psz_password )
 465     {
 466         int err;
 467         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 468                         p_sys->url.i_port, p_sys->url.psz_path );
 469         if( err == -1 ) return VLC_ENOMEM;
 470
 471         psz_user = strdup( p_sys->url.psz_username );
 472         psz_pwd  = strdup( p_sys->url.psz_password );
 473     }
 474     else
 475     {
 476         int err;
 477         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 478         if( err == -1 ) return VLC_ENOMEM;
 479
 480         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 481         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 482     }
 483
 484 createnew:
 485     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 486     {
 487         free( psz_user );
 488         free( psz_pwd );
 489         free( psz_url );
 490         return VLC_EGENERIC;
 491     }
 492
 493     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 494         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 495
 496     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 497           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 498           "VLC media player", i_http_port ) ) == NULL )
 499     {
 500         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 501                  p_sys->env->getResultMsg() );
 502         free( psz_user );
 503         free( psz_pwd );
 504         free( psz_url );
 505         return VLC_EGENERIC;
 506     }
 507
 508     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 509      * Appending _KA to the string should be enough to enable this feature,
 510      * however, there is a bug where the _KA doesn't get parsed from the
 511      * default User-Agent as created by VLC/Live555 code. This is probably due
 512      * to spaces in the string or the string being too long. Here we override
 513      * the default string with a more compact version.
 514      */
 515     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 516     {
 517         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 518     }
 519
 520 describe:
 521     authenticator.setUsernameAndPassword( (const char*)psz_user,
 522                                           (const char*)psz_pwd );
 523
 524     /* */
 525     const int i_timeout = var_CreateGetInteger(p_demux, "ipv4-timeout") / 1000;
 526
 527 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 528     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 529                                                &authenticator, i_timeout );
 530 #else
 531     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 532                                                &authenticator );
 533 #endif
 534     if( psz_options == NULL && authenticator.realm() != NULL )
 535     {
 536         // try again, with the realm set this time
 537 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 538         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 539                                                &authenticator, i_timeout );
 540 #else
 541         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 542                                                &authenticator );
 543 #endif
 544     }
 545     if( psz_options )
 546         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 547     delete [] psz_options;
 548
 549 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 550     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 551                                           var_GetBool( p_demux, "rtsp-kasenna" ), i_timeout );
 552 #else
 553     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 554                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
 555 #endif
 556
 557     if( p_sdp == NULL )
 558     {
 559         /* failure occurred */
 560         int i_code = 0;
 561         const char *psz_error = p_sys->env->getResultMsg();
 562
 563         if( var_GetBool( p_demux, "rtsp-http" ) )
 564             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 565                     &i_code );
 566         else
 567         {
 568             const char *psz_tmp = strstr( psz_error, "RTSP" );
 569             if( psz_tmp )
 570                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 571             else
 572                 i_code = 0;
 573         }
 574         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 575
 576         if( b_firstpass )
 577         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 578              * first time. This is a workaround to avoid asking for a
 579              * user/passwd the first time the code passess here. */
 580             i_code = 0;
 581             b_firstpass = false;
 582         }
 583
 584         if( i_code == 401 )
 585         {
 586             msg_Dbg( p_demux, "authentication failed" );
 587
 588             free( psz_user );
 589             free( psz_pwd );
 590             dialog_Login( p_demux, &psz_user, &psz_pwd,
 591                           _("RTSP authentication"),
 592                         _("Please enter a valid login name and a password.") );
 593             if( psz_user != NULL && psz_pwd != NULL )
 594             {
 595                 msg_Dbg( p_demux, "retrying with user=%s", psz_user );
 596                 goto describe;
 597             }
 598         }
 599         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 600         {
 601             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 602             vlc_value_t val;
 603             val.b_bool = true;
 604             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 605             var_Set( p_demux, "rtsp-http", val );
 606             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 607             p_sys->rtsp = NULL;
 608             goto createnew;
 609         }
 610         else
 611         {
 612             msg_Dbg( p_demux, "connection timeout" );
 613             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 614             p_sys->rtsp = NULL;
 615         }
 616         i_ret = VLC_EGENERIC;
 617     }
 618
 619     /* malloc-ated copy */
 620     free( psz_url );
 621     free( psz_user );
 622     free( psz_pwd );
 623
 624     free( p_sys->p_sdp );
 625     p_sys->p_sdp = NULL;
 626     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 627     delete[] p_sdp;
 628
 629     return i_ret;
 630 }
 631
 632 /*****************************************************************************
 633  * SessionsSetup: prepares the subsessions and does the SETUP
 634  *****************************************************************************/
 635 static int SessionsSetup( demux_t *p_demux )
 636 {
 637     demux_sys_t             *p_sys  = p_demux->p_sys;
 638     MediaSubsessionIterator *iter   = NULL;
 639     MediaSubsession         *sub    = NULL;
 640
 641     bool           b_rtsp_tcp = false;
 642     int            i_client_port;
 643     int            i_return = VLC_SUCCESS;
 644     unsigned int   i_buffer = 0;
 645     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 646
 647     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 648                     var_GetBool( p_demux, "rtsp-http" );
 649     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 650
 651     /* Create the session from the SDP */
 652     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 653     {
 654         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 655             p_sys->env->getResultMsg() );
 656         return VLC_EGENERIC;
 657     }
 658
 659     /* Initialise each media subsession */
 660     iter = new MediaSubsessionIterator( *p_sys->ms );
 661     while( ( sub = iter->next() ) != NULL )
 662     {
 663         Boolean bInit;
 664         live_track_t *tk;
 665
 666         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 667         {
 668             delete iter;
 669             return VLC_EGENERIC;
 670         }
 671
 672         /* Value taken from mplayer */
 673         if( !strcmp( sub->mediumName(), "audio" ) )
 674             i_buffer = 100000;
 675         else if( !strcmp( sub->mediumName(), "video" ) )
 676             i_buffer = 2000000;
 677         else continue;
 678
 679         if( i_client_port != -1 )
 680         {
 681             sub->setClientPortNum( i_client_port );
 682             i_client_port += 2;
 683         }
 684
 685         if( strcasestr( sub->codecName(), "REAL" ) )
 686         {
 687             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 688             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 689             continue;
 690         }
 691
 692         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 693             bInit = sub->initiate( 4 ); /* Constant ? */
 694         else
 695             bInit = sub->initiate();
 696
 697         if( !bInit )
 698         {
 699             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 700                       sub->mediumName(), sub->codecName(),
 701                       p_sys->env->getResultMsg() );
 702         }
 703         else
 704         {
 705             if( sub->rtpSource() != NULL )
 706             {
 707                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 708
 709                 /* Increase the buffer size */
 710                 if( i_buffer > 0 )
 711                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 712
 713                 /* Increase the RTP reorder timebuffer just a bit */
 714                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 715             }
 716             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 717                      sub->codecName() );
 718
 719             /* Issue the SETUP */
 720             if( p_sys->rtsp )
 721             {
 722                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 723                                            b_rtsp_tcp ? True : False,
 724                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 725                 {
 726                     /* if we get an unsupported transport error, toggle TCP use and try again */
 727                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 728                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 729                                            b_rtsp_tcp ? False : True,
 730                                            False ) )
 731                     {
 732                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 733                                  sub->codecName(), p_sys->env->getResultMsg() );
 734                         continue;
 735                     }
 736                 }
 737             }
 738
 739             /* Check if we will receive data from this subsession for this track */
 740             if( sub->readSource() == NULL ) continue;
 741             if( !p_sys->b_multicast )
 742             {
 743                 /* Check, because we need diff. rollover behaviour for multicast */
 744                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 745             }
 746
 747             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 748             if( !tk )
 749             {
 750                 delete iter;
 751                 return VLC_ENOMEM;
 752             }
 753             tk->p_demux     = p_demux;
 754             tk->sub         = sub;
 755             tk->p_es        = NULL;
 756             tk->b_quicktime = false;
 757             tk->b_asf       = false;
 758             tk->b_muxed     = false;
 759             tk->b_discard_trunc = false;
 760             tk->p_out_muxed = NULL;
 761             tk->waiting     = 0;
 762             tk->b_rtcp_sync = false;
 763             tk->i_pts       = 0;
 764             tk->i_npt       = 0.;
 765             tk->i_buffer    = 65536;
 766             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 767             if( !tk->p_buffer )
 768             {
 769                 free( tk );
 770                 delete iter;
 771                 return VLC_ENOMEM;
 772             }
 773
 774             /* Value taken from mplayer */
 775             if( !strcmp( sub->mediumName(), "audio" ) )
 776             {
 777                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 778                 tk->fmt.audio.i_channels = sub->numChannels();
 779                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 780
 781                 if( !strcmp( sub->codecName(), "MPA" ) ||
 782                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 783                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 784                 {
 785                     tk->fmt.i_codec = VLC_CODEC_MPGA;
 786                     tk->fmt.audio.i_rate = 0;
 787                 }
 788                 else if( !strcmp( sub->codecName(), "AC3" ) )
 789                 {
 790                     tk->fmt.i_codec = VLC_CODEC_A52;
 791                     tk->fmt.audio.i_rate = 0;
 792                 }
 793                 else if( !strcmp( sub->codecName(), "L16" ) )
 794                 {
 795                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 796                     tk->fmt.audio.i_bitspersample = 16;
 797                 }
 798                 else if( !strcmp( sub->codecName(), "L8" ) )
 799                 {
 800                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 801                     tk->fmt.audio.i_bitspersample = 8;
 802                 }
 803                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 804                 {
 805                     tk->fmt.i_codec = VLC_CODEC_MULAW;
 806                 }
 807                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 808                 {
 809                     tk->fmt.i_codec = VLC_CODEC_ALAW;
 810                 }
 811                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 812                 {
 813                     tk->fmt.i_codec = VLC_CODEC_ADPCM_G726;
 814                     tk->fmt.audio.i_rate = 8000;
 815                     tk->fmt.audio.i_channels = 1;
 816                     if( !strcmp( sub->codecName()+5, "40" ) )
 817                         tk->fmt.i_bitrate = 40000;
 818                     else if( !strcmp( sub->codecName()+5, "32" ) )
 819                         tk->fmt.i_bitrate = 32000;
 820                     else if( !strcmp( sub->codecName()+5, "24" ) )
 821                         tk->fmt.i_bitrate = 24000;
 822                     else if( !strcmp( sub->codecName()+5, "16" ) )
 823                         tk->fmt.i_bitrate = 16000;
 824                 }
 825                 else if( !strcmp( sub->codecName(), "AMR" ) )
 826                 {
 827                     tk->fmt.i_codec = VLC_CODEC_AMR_NB;
 828                 }
 829                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 830                 {
 831                     tk->fmt.i_codec = VLC_CODEC_AMR_WB;
 832                 }
 833                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 834                 {
 835                     unsigned int i_extra;
 836                     uint8_t      *p_extra;
 837
 838                     tk->fmt.i_codec = VLC_CODEC_MP4A;
 839
 840                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 841                                                              i_extra ) ) )
 842                     {
 843                         tk->fmt.i_extra = i_extra;
 844                         tk->fmt.p_extra = malloc( i_extra );
 845                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 846                         delete[] p_extra;
 847                     }
 848                     /* Because the "faad" decoder does not handle the LATM data length field
 849                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 850                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 851                 }
 852                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 853                 {
 854                     unsigned int i_extra;
 855                     uint8_t      *p_extra;
 856
 857                     tk->fmt.i_codec = VLC_CODEC_MP4A;
 858
 859                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 860                                                            i_extra ) ) )
 861                     {
 862                         tk->fmt.i_extra = i_extra;
 863                         tk->fmt.p_extra = malloc( i_extra );
 864                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 865                         delete[] p_extra;
 866                     }
 867                 }
 868                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 869                 {
 870                     tk->b_asf = true;
 871                     if( p_sys->p_out_asf == NULL )
 872                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 873                                                             p_demux->out );
 874                 }
 875                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 876                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 877                 {
 878                     tk->b_quicktime = true;
 879                 }
 880                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 881                 {
 882                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 883                     if ( sub->rtpTimestampFrequency() )
 884                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 885                     else
 886                     {
 887                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 888                         tk->fmt.audio.i_rate = 8000;
 889                     }
 890                 }
 891             }
 892             else if( !strcmp( sub->mediumName(), "video" ) )
 893             {
 894                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 895                 if( !strcmp( sub->codecName(), "MPV" ) )
 896                 {
 897                     tk->fmt.i_codec = VLC_CODEC_MPGV;
 898                 }
 899                 else if( !strcmp( sub->codecName(), "H263" ) ||
 900                          !strcmp( sub->codecName(), "H263-1998" ) ||
 901                          !strcmp( sub->codecName(), "H263-2000" ) )
 902                 {
 903                     tk->fmt.i_codec = VLC_CODEC_H263;
 904                 }
 905                 else if( !strcmp( sub->codecName(), "H261" ) )
 906                 {
 907                     tk->fmt.i_codec = VLC_CODEC_H261;
 908                 }
 909                 else if( !strcmp( sub->codecName(), "H264" ) )
 910                 {
 911                     unsigned int i_extra = 0;
 912                     uint8_t      *p_extra = NULL;
 913
 914                     tk->fmt.i_codec = VLC_CODEC_H264;
 915                     tk->fmt.b_packetized = false;
 916
 917                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 918                                                     i_extra ) ) )
 919                     {
 920                         tk->fmt.i_extra = i_extra;
 921                         tk->fmt.p_extra = malloc( i_extra );
 922                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 923
 924                         delete[] p_extra;
 925                     }
 926                 }
 927                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 928                 {
 929                     tk->fmt.i_codec = VLC_CODEC_MJPG;
 930                 }
 931                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 932                 {
 933                     unsigned int i_extra;
 934                     uint8_t      *p_extra;
 935
 936                     tk->fmt.i_codec = VLC_CODEC_MP4V;
 937
 938                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 939                                                            i_extra ) ) )
 940                     {
 941                         tk->fmt.i_extra = i_extra;
 942                         tk->fmt.p_extra = malloc( i_extra );
 943                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 944                         delete[] p_extra;
 945                     }
 946                 }
 947                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 948                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 949                          !strcmp( sub->codecName(), "X-QDM" ) ||
 950                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 951                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 952                 {
 953                     tk->b_quicktime = true;
 954                 }
 955                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 956                 {
 957                     tk->b_muxed = true;
 958                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 959                 }
 960                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 961                          !strcmp( sub->codecName(), "MP1S" ) )
 962                 {
 963                     tk->b_muxed = true;
 964                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 965                                                        p_demux->out );
 966                 }
 967                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 968                 {
 969                     tk->b_asf = true;
 970                     if( p_sys->p_out_asf == NULL )
 971                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 972                                                             p_demux->out );;
 973                 }
 974                 else if( !strcmp( sub->codecName(), "DV" ) )
 975                 {
 976                     tk->b_muxed = true;
 977                     tk->b_discard_trunc = true;
 978                     tk->p_out_muxed = stream_DemuxNew( p_demux, "rawdv",
 979                                                        p_demux->out );
 980                 }
 981             }
 982
 983             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 984             {
 985                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 986             }
 987
 988             if( sub->rtcpInstance() != NULL )
 989             {
 990                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 991             }
 992
 993             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 994             {
 995                 /* Append */
 996                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 997                 p_sys->track[p_sys->i_track++] = tk;
 998             }
 999             else
1000             {
1001                 /* BUG ??? */
1002                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1003                 es_format_Clean( &tk->fmt );
1004                 free( tk );
1005             }
1006         }
1007     }
1008     delete iter;
1009     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1010
1011     /* Retrieve the starttime if possible */
1012     p_sys->i_npt_start = p_sys->ms->playStartTime();
1013
1014     /* Retrieve the duration if possible */
1015     p_sys->i_npt_length = p_sys->ms->playEndTime();
1016
1017     /* */
1018     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1019
1020     /* */
1021     p_sys->b_no_data = true;
1022     p_sys->i_no_data_ti = 0;
1023
1024     return i_return;
1025 }
1026
1027 /*****************************************************************************
1028  * Play: starts the actual playback of the stream
1029  *****************************************************************************/
1030 static int Play( demux_t *p_demux )
1031 {
1032     demux_sys_t *p_sys = p_demux->p_sys;
1033
1034     if( p_sys->rtsp )
1035     {
1036         /* The PLAY */
1037         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1038         {
1039             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1040             return VLC_EGENERIC;
1041         }
1042
1043         /* Retrieve the timeout value and set up a timeout prevention thread */
1044         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1045         if( p_sys->i_timeout <= 0 )
1046             p_sys->i_timeout = 60; /* default value from RFC2326 */
1047
1048         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1049         if( !p_sys->p_timeout && p_sys->b_get_param )
1050         {
1051             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1052             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1053             if( p_sys->p_timeout )
1054             {
1055                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1056                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1057                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1058                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1059                 {
1060                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1061                     free( p_sys->p_timeout );
1062                     p_sys->p_timeout = NULL;
1063                 }
1064                 else
1065                     msg_Dbg( p_demux, "spawned timeout thread" );
1066             }
1067             else
1068                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1069         }
1070     }
1071     p_sys->i_pcr = 0;
1072
1073     /* Retrieve the starttime if possible */
1074     p_sys->i_npt_start = p_sys->ms->playStartTime();
1075     p_sys->i_npt_length = p_sys->ms->playEndTime();
1076
1077     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1078     return VLC_SUCCESS;
1079 }
1080
1081
1082 /*****************************************************************************
1083  * Demux:
1084  *****************************************************************************/
1085 static int Demux( demux_t *p_demux )
1086 {
1087     demux_sys_t    *p_sys = p_demux->p_sys;
1088     TaskToken      task;
1089
1090     bool            b_send_pcr = true;
1091     int64_t         i_pcr = 0;
1092     int             i;
1093
1094     /* Check if we need to send the server a Keep-A-Live signal */
1095     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1096     {
1097         char *psz_bye = NULL;
1098         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1099         p_sys->b_timeout_call = false;
1100     }
1101
1102     for( i = 0; i < p_sys->i_track; i++ )
1103     {
1104         live_track_t *tk = p_sys->track[i];
1105
1106         if( tk->b_asf || tk->b_muxed )
1107             b_send_pcr = false;
1108 #if 0
1109         if( i_pcr == 0 )
1110         {
1111             i_pcr = tk->i_pts;
1112         }
1113         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1114         {
1115             i_pcr = tk->i_pts ;
1116         }
1117 #endif
1118     }
1119     if( p_sys->i_pcr > 0 )
1120     {
1121         if( b_send_pcr )
1122             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1123     }
1124
1125     /* First warn we want to read data */
1126     p_sys->event = 0;
1127     for( i = 0; i < p_sys->i_track; i++ )
1128     {
1129         live_track_t *tk = p_sys->track[i];
1130
1131         if( tk->waiting == 0 )
1132         {
1133             tk->waiting = 1;
1134             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1135                                           StreamRead, tk, StreamClose, tk );
1136         }
1137     }
1138     /* Create a task that will be called if we wait more than 300ms */
1139     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1140
1141     /* Do the read */
1142     p_sys->scheduler->doEventLoop( &p_sys->event );
1143
1144     /* remove the task */
1145     p_sys->scheduler->unscheduleDelayedTask( task );
1146
1147     /* Check for gap in pts value */
1148     for( i = 0; i < p_sys->i_track; i++ )
1149     {
1150         live_track_t *tk = p_sys->track[i];
1151
1152         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1153             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1154         {
1155             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1156
1157             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1158             tk->b_rtcp_sync = true;
1159             /* reset PCR */
1160             tk->i_pts = 0;
1161             tk->i_npt = 0.;
1162             p_sys->i_pcr = 0;
1163             p_sys->i_npt = 0.;
1164             i_pcr = 0;
1165         }
1166     }
1167
1168     if( p_sys->b_multicast && p_sys->b_no_data &&
1169         ( p_sys->i_no_data_ti > 120 ) )
1170     {
1171         /* FIXME Make this configurable
1172         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1173         return 0;
1174         */
1175     }
1176     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1177              ( p_sys->i_no_data_ti > 34 ) )
1178     {
1179         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1180                                 var_GetBool( p_demux, "rtsp-http" );
1181
1182         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1183         {
1184             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1185             if( RollOverTcp( p_demux ) )
1186             {
1187                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1188                 return 0;
1189             }
1190             return 1;
1191         }
1192         msg_Err( p_demux, "no data received in 10s, aborting" );
1193         return 0;
1194     }
1195     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1196     {
1197         /* EOF ? */
1198         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1199         return 0;
1200     }
1201     return p_demux->b_error ? 0 : 1;
1202 }
1203
1204 /*****************************************************************************
1205  * Control:
1206  *****************************************************************************/
1207 static int Control( demux_t *p_demux, int i_query, va_list args )
1208 {
1209     demux_sys_t *p_sys = p_demux->p_sys;
1210     int64_t *pi64, i64;
1211     double  *pf, f;
1212     bool *pb, *pb2, b_bool;
1213     int *pi_int;
1214
1215     switch( i_query )
1216     {
1217         case DEMUX_GET_TIME:
1218             pi64 = (int64_t*)va_arg( args, int64_t * );
1219             if( p_sys->i_npt > 0 )
1220             {
1221                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1222                 return VLC_SUCCESS;
1223             }
1224             return VLC_EGENERIC;
1225
1226         case DEMUX_GET_LENGTH:
1227             pi64 = (int64_t*)va_arg( args, int64_t * );
1228             if( p_sys->i_npt_length > 0 )
1229             {
1230                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1231                 return VLC_SUCCESS;
1232             }
1233             return VLC_EGENERIC;
1234
1235         case DEMUX_GET_POSITION:
1236             pf = (double*)va_arg( args, double* );
1237             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1238             {
1239                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1240                 return VLC_SUCCESS;
1241             }
1242             return VLC_EGENERIC;
1243
1244         case DEMUX_SET_POSITION:
1245         case DEMUX_SET_TIME:
1246             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1247             {
1248                 int i;
1249                 float time;
1250
1251                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1252                 {
1253                     i64 = (int64_t)va_arg( args, int64_t );
1254                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1255                 }
1256                 else if( i_query == DEMUX_SET_TIME )
1257                     return VLC_EGENERIC;
1258                 else
1259                 {
1260                     f = (double)va_arg( args, double );
1261                     time = f * (double)p_sys->i_npt_length;   /* in second */
1262                 }
1263
1264                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1265                 {
1266                     msg_Err( p_demux, "PLAY failed %s",
1267                         p_sys->env->getResultMsg() );
1268                     return VLC_EGENERIC;
1269                 }
1270                 p_sys->i_pcr = 0;
1271
1272                 /* Retrieve RTP-Info values */
1273                 for( i = 0; i < p_sys->i_track; i++ )
1274                 {
1275                     p_sys->track[i]->b_rtcp_sync = false;
1276                     p_sys->track[i]->i_pts = 0;
1277                 }
1278
1279                 /* Retrieve the starttime if possible */
1280                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1281
1282                 /* Retrieve the duration if possible */
1283                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1284
1285                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1286                 return VLC_SUCCESS;
1287             }
1288             return VLC_EGENERIC;
1289
1290         /* Special for access_demux */
1291         case DEMUX_CAN_PAUSE:
1292         case DEMUX_CAN_SEEK:
1293             pb = (bool*)va_arg( args, bool * );
1294             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1295                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1296                 *pb = true;
1297             else
1298                 *pb = false;
1299             return VLC_SUCCESS;
1300
1301         case DEMUX_CAN_CONTROL_PACE:
1302             pb = (bool*)va_arg( args, bool * );
1303
1304 #if 1       /* Disable for now until we have a clock synchro algo
1305              * which works with something else than MPEG over UDP */
1306             *pb = false;
1307 #else
1308             *pb = true;
1309 #endif
1310             return VLC_SUCCESS;
1311
1312         case DEMUX_CAN_CONTROL_RATE:
1313             pb = (bool*)va_arg( args, bool * );
1314             pb2 = (bool*)va_arg( args, bool * );
1315
1316             *pb = (p_sys->rtsp != NULL) &&
1317                     (p_sys->i_npt_length > 0) &&
1318                     !var_GetBool( p_demux, "rtsp-kasenna" );
1319             *pb2 = false;
1320             return VLC_SUCCESS;
1321
1322         case DEMUX_SET_RATE:
1323         {
1324             double f_scale, f_old_scale;
1325
1326             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1327                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1328                 return VLC_EGENERIC;
1329
1330             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1331              * supports Scale:
1332              *
1333              * "[...] should try to approximate the viewing rate, but
1334              *  may restrict the range of scale values that it supports.
1335              *  The response MUST contain the actual scale value chosen
1336              *  by the server."
1337              *
1338              * Scale = 1 indicates normal play
1339              * Scale > 1 indicates fast forward
1340              * Scale < 1 && Scale > 0 indicates slow motion
1341              * Scale < 0 value indicates rewind
1342              */
1343
1344             pi_int = (int*)va_arg( args, int * );
1345             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1346             f_old_scale = p_sys->ms->scale();
1347
1348             /* Passing -1 for the start and end time will mean liveMedia won't
1349              * create a Range: section for the RTSP message. The server should
1350              * pick up from the current position */
1351             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1352             {
1353                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1354                         p_sys->env->getResultMsg() );
1355                 return VLC_EGENERIC;
1356             }
1357
1358             if( p_sys->ms->scale() == f_old_scale )
1359             {
1360                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1361                           p_sys->ms->scale() );
1362                 return VLC_EGENERIC;
1363             }
1364
1365             /* ReSync the stream */
1366             p_sys->i_npt_start = 0;
1367             p_sys->i_pcr = 0;
1368             p_sys->i_npt = 0.0;
1369
1370             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1371             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1372             return VLC_SUCCESS;
1373         }
1374
1375         case DEMUX_SET_PAUSE_STATE:
1376         {
1377             int i;
1378
1379             b_bool = (bool)va_arg( args, int );
1380             if( p_sys->rtsp == NULL )
1381                 return VLC_EGENERIC;
1382
1383             /* FIXME */
1384             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1385                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1386                        -1 ) ) )
1387             {
1388                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1389                     return VLC_EGENERIC;
1390             }
1391
1392             /* When we Pause, we'll need the TimeoutPrevention thread to
1393              * handle sending the "Keep Alive" message to the server.
1394              * Unfortunately Live555 isn't thread safe and so can't
1395              * do this normally while the main Demux thread is handling
1396              * a live stream. We end up with the Timeout thread blocking
1397              * waiting for a response from the server. So when we PAUSE
1398              * we set a flag that the TimeoutPrevention function will check
1399              * and if it's set, it will trigger the GET_PARAMETER message */
1400             if( b_bool && p_sys->p_timeout != NULL )
1401                 p_sys->p_timeout->b_handle_keep_alive = true;
1402             else if( !b_bool && p_sys->p_timeout != NULL )
1403                 p_sys->p_timeout->b_handle_keep_alive = false;
1404
1405             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1406             {
1407                 live_track_t *tk = p_sys->track[i];
1408                 tk->b_rtcp_sync = false;
1409                 tk->i_pts = 0;
1410                 p_sys->i_pcr = 0;
1411                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1412             }
1413
1414             /* Retrieve the starttime if possible */
1415             p_sys->i_npt_start = p_sys->ms->playStartTime();
1416
1417             /* Retrieve the duration if possible */
1418             p_sys->i_npt_length = p_sys->ms->playEndTime();
1419
1420             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1421             return VLC_SUCCESS;
1422         }
1423         case DEMUX_GET_TITLE_INFO:
1424         case DEMUX_SET_TITLE:
1425         case DEMUX_SET_SEEKPOINT:
1426             return VLC_EGENERIC;
1427
1428         case DEMUX_GET_PTS_DELAY:
1429             pi64 = (int64_t*)va_arg( args, int64_t * );
1430             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1431             return VLC_SUCCESS;
1432
1433         default:
1434             return VLC_EGENERIC;
1435     }
1436 }
1437
1438 /*****************************************************************************
1439  * RollOverTcp: reopen the rtsp into TCP mode
1440  * XXX: ugly, a lot of code are duplicated from Open()
1441  * This should REALLY be fixed
1442  *****************************************************************************/
1443 static int RollOverTcp( demux_t *p_demux )
1444 {
1445     demux_sys_t *p_sys = p_demux->p_sys;
1446     int i, i_return;
1447
1448     var_SetBool( p_demux, "rtsp-tcp", true );
1449
1450     /* We close the old RTSP session */
1451     for( i = 0; i < p_sys->i_track; i++ )
1452     {
1453         live_track_t *tk = p_sys->track[i];
1454
1455         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1456         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1457         es_format_Clean( &tk->fmt );
1458         free( tk->p_buffer );
1459         free( tk );
1460     }
1461     if( p_sys->i_track ) free( p_sys->track );
1462     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1463
1464     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1465     Medium::close( p_sys->ms );
1466     RTSPClient::close( p_sys->rtsp );
1467
1468     p_sys->ms = NULL;
1469     p_sys->rtsp = NULL;
1470     p_sys->track = NULL;
1471     p_sys->i_track = 0;
1472     p_sys->b_no_data = true;
1473     p_sys->i_no_data_ti = 0;
1474
1475     /* Reopen rtsp client */
1476     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1477     {
1478         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1479                  p_sys->psz_path );
1480         goto error;
1481     }
1482
1483     if( p_sys->p_sdp == NULL )
1484     {
1485         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1486         goto error;
1487     }
1488
1489     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1490     {
1491         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1492         goto error;
1493     }
1494
1495     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1496         goto error;
1497
1498     return VLC_SUCCESS;
1499
1500 error:
1501     return VLC_EGENERIC;
1502 }
1503
1504
1505 /*****************************************************************************
1506  *
1507  *****************************************************************************/
1508 static void StreamRead( void *p_private, unsigned int i_size,
1509                         unsigned int i_truncated_bytes, struct timeval pts,
1510                         unsigned int duration )
1511 {
1512     live_track_t   *tk = (live_track_t*)p_private;
1513     demux_t        *p_demux = tk->p_demux;
1514     demux_sys_t    *p_sys = p_demux->p_sys;
1515     block_t        *p_block;
1516
1517     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1518
1519     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1520         (int64_t)pts.tv_usec;
1521
1522     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1523     i_pts &= INT64_C(0x00ffffffffffffff);
1524
1525     /* Retrieve NPT for this pts */
1526     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1527
1528     if( tk->b_quicktime && tk->p_es == NULL )
1529     {
1530         QuickTimeGenericRTPSource *qtRTPSource =
1531             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1532         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1533         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1534
1535         if( tk->fmt.i_cat == VIDEO_ES ) {
1536             if( qtState.sdAtomSize < 16 + 32 )
1537             {
1538                 /* invalid */
1539                 p_sys->event = 0xff;
1540                 tk->waiting = 0;
1541                 return;
1542             }
1543             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1544             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1545             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1546
1547             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1548             {
1549                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1550                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1551                                   + qtRTPSource->qtState.sdAtomSize;
1552                 while (pos+8 < endpos) {
1553                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1554                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1555                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1556                         atomLength > 8 &&
1557                         atomLength <= INT_MAX )
1558                     {
1559                         tk->fmt.i_extra = atomLength-8;
1560                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1561                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1562                         break;
1563                     }
1564                     pos += atomLength;
1565                 }
1566             }
1567             else
1568             {
1569                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1570                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1571                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1572             }
1573         }
1574         else {
1575             if( qtState.sdAtomSize < 4 )
1576             {
1577                 /* invalid */
1578                 p_sys->event = 0xff;
1579                 tk->waiting = 0;
1580                 return;
1581             }
1582             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1583         }
1584         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1585     }
1586
1587 #if 0
1588     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1589              i_size,
1590              pts.tv_sec * 1000000LL + pts.tv_usec );
1591 #endif
1592
1593     /* grow buffer if it looks like buffer is too small, but don't eat
1594      * up all the memory on strange streams */
1595     if( i_truncated_bytes > 0 )
1596     {
1597         if( tk->i_buffer < 2000000 )
1598         {
1599             void *p_tmp;
1600             msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1601             msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1602             p_tmp = realloc( tk->p_buffer, tk->i_buffer * 2 );
1603             if( p_tmp == NULL )
1604             {
1605                 msg_Warn( p_demux, "realloc failed" );
1606             }
1607             else
1608             {
1609                 tk->p_buffer = (uint8_t*)p_tmp;
1610                 tk->i_buffer *= 2;
1611             }
1612         }
1613
1614         if( tk->b_discard_trunc )
1615         {
1616             p_sys->event = 0xff;
1617             tk->waiting = 0;
1618             return;
1619         }
1620     }
1621
1622     assert( i_size <= tk->i_buffer );
1623
1624     if( tk->fmt.i_codec == VLC_CODEC_AMR_NB ||
1625         tk->fmt.i_codec == VLC_CODEC_AMR_WB )
1626     {
1627         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1628
1629         p_block = block_New( p_demux, i_size + 1 );
1630         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1631         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1632     }
1633     else if( tk->fmt.i_codec == VLC_CODEC_H261 )
1634     {
1635         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1636         uint32_t header = h261Source->lastSpecialHeader();
1637         p_block = block_New( p_demux, i_size + 4 );
1638         memcpy( p_block->p_buffer, &header, 4 );
1639         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1640
1641         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1642             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1643     }
1644     else if( tk->fmt.i_codec == VLC_CODEC_H264 )
1645     {
1646         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1647             msg_Warn( p_demux, "unsupported NAL type for H264" );
1648
1649         /* Normal NAL type */
1650         p_block = block_New( p_demux, i_size + 4 );
1651         p_block->p_buffer[0] = 0x00;
1652         p_block->p_buffer[1] = 0x00;
1653         p_block->p_buffer[2] = 0x00;
1654         p_block->p_buffer[3] = 0x01;
1655         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1656     }
1657     else if( tk->b_asf )
1658     {
1659         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1660         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1661
1662         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1663     }
1664     else
1665     {
1666         p_block = block_New( p_demux, i_size );
1667         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1668     }
1669
1670     if( p_sys->i_pcr < i_pts )
1671     {
1672         p_sys->i_pcr = i_pts;
1673     }
1674
1675     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1676     {
1677         p_block->i_pts = i_pts;
1678     }
1679
1680     /* Update our global npt value */
1681     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1682         p_sys->i_npt = tk->i_npt;
1683
1684     if( !tk->b_muxed )
1685     {
1686         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1687         p_block->i_dts = ( tk->fmt.i_codec == VLC_CODEC_MPGV ) ? 0 : i_pts;
1688     }
1689
1690     if( tk->b_muxed )
1691     {
1692         stream_DemuxSend( tk->p_out_muxed, p_block );
1693     }
1694     else if( tk->b_asf )
1695     {
1696         stream_DemuxSend( p_sys->p_out_asf, p_block );
1697     }
1698     else
1699     {
1700         es_out_Send( p_demux->out, tk->p_es, p_block );
1701     }
1702
1703     /* warn that's ok */
1704     p_sys->event = 0xff;
1705
1706     /* we have read data */
1707     tk->waiting = 0;
1708     p_demux->p_sys->b_no_data = false;
1709     p_demux->p_sys->i_no_data_ti = 0;
1710
1711     if( i_pts > 0 && !tk->b_muxed )
1712     {
1713         tk->i_pts = i_pts;
1714     }
1715 }
1716
1717 /*****************************************************************************
1718  *
1719  *****************************************************************************/
1720 static void StreamClose( void *p_private )
1721 {
1722     live_track_t   *tk = (live_track_t*)p_private;
1723     demux_t        *p_demux = tk->p_demux;
1724     demux_sys_t    *p_sys = p_demux->p_sys;
1725
1726     msg_Dbg( p_demux, "StreamClose" );
1727
1728     p_sys->event = 0xff;
1729     p_demux->b_error = true;
1730 }
1731
1732
1733 /*****************************************************************************
1734  *
1735  *****************************************************************************/
1736 static void TaskInterrupt( void *p_private )
1737 {
1738     demux_t *p_demux = (demux_t*)p_private;
1739
1740     p_demux->p_sys->i_no_data_ti++;
1741
1742     /* Avoid lock */
1743     p_demux->p_sys->event = 0xff;
1744 }
1745
1746 /*****************************************************************************
1747  *
1748  *****************************************************************************/
1749 static void* TimeoutPrevention( void *p_data )
1750 {
1751     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1752
1753     for( ;; )
1754     {
1755         /* Voodoo (= no) thread safety here! *Ahem* */
1756         if( p_timeout->b_handle_keep_alive )
1757         {
1758             char *psz_bye = NULL;
1759             int canc = vlc_savecancel ();
1760
1761             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1762             vlc_restorecancel (canc);
1763         }
1764         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1765
1766         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1767     }
1768     assert(0); /* dead code */
1769 }
1770
1771 /*****************************************************************************
1772  *
1773  *****************************************************************************/
1774 static int ParseASF( demux_t *p_demux )
1775 {
1776     demux_sys_t    *p_sys = p_demux->p_sys;
1777
1778     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1779     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1780     char *psz_end;
1781     block_t *p_header;
1782
1783     /* Parse the asf header */
1784     if( psz_asf == NULL )
1785         return VLC_EGENERIC;
1786
1787     psz_asf += strlen( psz_marker );
1788     psz_asf = strdup( psz_asf );    /* Duplicate it */
1789     psz_end = strchr( psz_asf, '\n' );
1790
1791     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1792         *psz_end-- = '\0';
1793
1794     if( psz_asf >= psz_end )
1795     {
1796         free( psz_asf );
1797         return VLC_EGENERIC;
1798     }
1799
1800     /* Always smaller */
1801     p_header = block_New( p_demux, psz_end - psz_asf );
1802     p_header->i_buffer = vlc_b64_decode_binary_to_buffer( p_header->p_buffer,
1803                                                p_header->i_buffer, psz_asf );
1804     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1805     if( p_header->i_buffer <= 0 )
1806     {
1807         free( psz_asf );
1808         return VLC_EGENERIC;
1809     }
1810
1811     /* Parse it to get packet size */
1812     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1813
1814     /* Send it to demuxer */
1815     stream_DemuxSend( p_sys->p_out_asf, p_header );
1816
1817     free( psz_asf );
1818     return VLC_SUCCESS;
1819 }
1820
1821
1822 static unsigned char* parseH264ConfigStr( char const* configStr,
1823                                           unsigned int& configSize )
1824 {
1825     char *dup, *psz;
1826     size_t i_records = 1;
1827
1828     configSize = 0;
1829
1830     if( configStr == NULL || *configStr == '\0' )
1831         return NULL;
1832
1833     psz = dup = strdup( configStr );
1834
1835     /* Count the number of commas */
1836     for( psz = dup; *psz != '\0'; ++psz )
1837     {
1838         if( *psz == ',')
1839         {
1840             ++i_records;
1841             *psz = '\0';
1842         }
1843     }
1844
1845     size_t configMax = 5*strlen(dup);
1846     unsigned char *cfg = new unsigned char[configMax];
1847     psz = dup;
1848     for( size_t i = 0; i < i_records; ++i )
1849     {
1850         cfg[configSize++] = 0x00;
1851         cfg[configSize++] = 0x00;
1852         cfg[configSize++] = 0x00;
1853         cfg[configSize++] = 0x01;
1854
1855         configSize += vlc_b64_decode_binary_to_buffer( cfg+configSize,
1856                                           configMax-configSize, psz );
1857         psz += strlen(psz)+1;
1858     }
1859
1860     free( dup );
1861     return cfg;
1862 }