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

   1 /*****************************************************************************
   2  * live555.cpp : LIVE555 Streaming Media support.
   3  *****************************************************************************
   4  * Copyright (C) 2003-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Derk-Jan Hartman <hartman at videolan. org>
   9  *          Derk-Jan Hartman <djhartman at m2x .dot. nl> for M2X
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29
  30 /* For inttypes.h
  31  * Note: config.h may include inttypes.h, so make sure we define this option
  32  * early enough. */
  33 #define __STDC_CONSTANT_MACROS 1
  34
  35 #ifdef HAVE_CONFIG_H
  36 # include "config.h"
  37 #endif
  38
  39 #include <inttypes.h>
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43
  44 #include <vlc_demux.h>
  45 #include <vlc_interface.h>
  46 #include <vlc_network.h>
  47 #include <vlc_url.h>
  48
  49 #include <iostream>
  50 #include <limits.h>
  51
  52
  53 #if defined( WIN32 )
  54 #   include <winsock2.h>
  55 #endif
  56
  57 #include "UsageEnvironment.hh"
  58 #include "BasicUsageEnvironment.hh"
  59 #include "GroupsockHelper.hh"
  60 #include "liveMedia.hh"
  61
  62 extern "C" {
  63 #include "../access/mms/asf.h"  /* Who said ugly ? */
  64 }
  65
  66 using namespace std;
  67
  68 /*****************************************************************************
  69  * Module descriptor
  70  *****************************************************************************/
  71 static int  Open ( vlc_object_t * );
  72 static void Close( vlc_object_t * );
  73
  74 #define CACHING_TEXT N_("Caching value (ms)")
  75 #define CACHING_LONGTEXT N_( \
  76     "Allows you to modify the default caching value for RTSP streams. This " \
  77     "value should be set in millisecond units." )
  78
  79 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  80 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  81     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  82     "for communication. In this mode you cannot connect to normal RTSP servers." )
  83
  84 #define USER_TEXT N_("RTSP user name")
  85 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  86     "be used for authenticating the connection.")
  87 #define PASS_TEXT N_("RTSP password")
  88 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  89     "used for the connection.")
  90
  91 vlc_module_begin();
  92     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) );
  93     set_capability( "demux", 50 );
  94     set_shortname( "RTP/RTSP");
  95     set_callbacks( Open, Close );
  96     add_shortcut( "live" );
  97     add_shortcut( "livedotcom" );
  98     set_category( CAT_INPUT );
  99     set_subcategory( SUBCAT_INPUT_DEMUX );
 100
 101     add_submodule();
 102         set_description( N_("RTSP/RTP access and demux") );
 103         add_shortcut( "rtsp" );
 104         add_shortcut( "sdp" );
 105         set_capability( "access_demux", 0 );
 106         set_callbacks( Open, Close );
 107         add_bool( "rtsp-tcp", 0, NULL,
 108                   N_("Use RTP over RTSP (TCP)"),
 109                   N_("Use RTP over RTSP (TCP)"), true );
 110         add_integer( "rtp-client-port", -1, NULL,
 111                   N_("Client port"),
 112                   N_("Port to use for the RTP source of the session"), true );
 113         add_bool( "rtsp-mcast", false, NULL,
 114                   N_("Force multicast RTP via RTSP"),
 115                   N_("Force multicast RTP via RTSP"), true );
 116         add_bool( "rtsp-http", 0, NULL,
 117                   N_("Tunnel RTSP and RTP over HTTP"),
 118                   N_("Tunnel RTSP and RTP over HTTP"), true );
 119         add_integer( "rtsp-http-port", 80, NULL,
 120                   N_("HTTP tunnel port"),
 121                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 122                   true );
 123         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 124                     CACHING_TEXT, CACHING_LONGTEXT, true );
 125         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 126                     KASENNA_LONGTEXT, true );
 127         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 128                     USER_LONGTEXT, true );
 129         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 130                     PASS_LONGTEXT, true );
 131 vlc_module_end();
 132
 133
 134 /*****************************************************************************
 135  * Local prototypes
 136  *****************************************************************************/
 137
 138 typedef struct
 139 {
 140     demux_t         *p_demux;
 141     MediaSubsession *sub;
 142
 143     es_format_t     fmt;
 144     es_out_id_t     *p_es;
 145
 146     bool            b_muxed;
 147     bool            b_quicktime;
 148     bool            b_asf;
 149     stream_t        *p_out_muxed;    /* for muxed stream */
 150
 151     uint8_t         *p_buffer;
 152     unsigned int    i_buffer;
 153
 154     bool            b_rtcp_sync;
 155     char            waiting;
 156     int64_t         i_pts;
 157     u_int32_t       i_start_seq;
 158
 159 } live_track_t;
 160
 161 struct timeout_thread_t
 162 {
 163     VLC_COMMON_MEMBERS
 164
 165     int64_t      i_remain;
 166     bool   b_handle_keep_alive;
 167     demux_sys_t  *p_sys;
 168 };
 169
 170 struct demux_sys_t
 171 {
 172     char            *p_sdp;    /* XXX mallocated */
 173     char            *psz_path; /* URL-encoded path */
 174     vlc_url_t       url;
 175
 176     MediaSession     *ms;
 177     TaskScheduler    *scheduler;
 178     UsageEnvironment *env ;
 179     RTSPClient       *rtsp;
 180
 181     /* */
 182     int              i_track;
 183     live_track_t     **track;   /* XXX mallocated */
 184
 185     /* Weird formats */
 186     asf_header_t     asfh;
 187     stream_t         *p_out_asf;
 188     bool       b_real;
 189
 190     /* */
 191     int64_t          i_pcr; /* The clock */
 192     int64_t          i_npt_length;
 193     int64_t          i_npt_start;
 194
 195     /* timeout thread information */
 196     int              i_timeout;     /* session timeout value in seconds */
 197     bool       b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 198     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 199
 200     /* */
 201     bool             b_force_mcast;
 202     bool             b_multicast;   /* if one of the tracks is multicasted */
 203     bool             b_no_data;     /* if we never received any data */
 204     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 205
 206     char             event;
 207 };
 208
 209 static int Demux  ( demux_t * );
 210 static int Control( demux_t *, int, va_list );
 211
 212 static int Connect      ( demux_t * );
 213 static int SessionsSetup( demux_t * );
 214 static int Play         ( demux_t *);
 215 static int ParseASF     ( demux_t * );
 216 static int RollOverTcp  ( demux_t * );
 217
 218 static void StreamRead  ( void *, unsigned int, unsigned int,
 219                           struct timeval, unsigned int );
 220 static void StreamClose ( void * );
 221 static void TaskInterrupt( void * );
 222
 223 static void TimeoutPrevention( timeout_thread_t * );
 224
 225 static unsigned char* parseH264ConfigStr( char const* configStr,
 226                                           unsigned int& configSize );
 227
 228 /*****************************************************************************
 229  * DemuxOpen:
 230  *****************************************************************************/
 231 static int  Open ( vlc_object_t *p_this )
 232 {
 233     demux_t     *p_demux = (demux_t*)p_this;
 234     demux_sys_t *p_sys = NULL;
 235
 236     MediaSubsessionIterator *iter   = NULL;
 237     MediaSubsession         *sub    = NULL;
 238     int i, i_return;
 239     int i_error = VLC_EGENERIC;
 240
 241     if( p_demux->s )
 242     {
 243         /* See if it looks like a SDP
 244            v, o, s fields are mandatory and in this order */
 245         const uint8_t *p_peek;
 246         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 247
 248         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 249             memcmp( p_peek, "v=0\n", 4 ) &&
 250             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 251         {
 252             return VLC_EGENERIC;
 253         }
 254     }
 255     else
 256     {
 257         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 258     }
 259
 260     p_demux->pf_demux  = Demux;
 261     p_demux->pf_control= Control;
 262     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 263     if( !p_sys ) return VLC_ENOMEM;
 264
 265     p_sys->p_sdp = NULL;
 266     p_sys->scheduler = NULL;
 267     p_sys->env = NULL;
 268     p_sys->ms = NULL;
 269     p_sys->rtsp = NULL;
 270     p_sys->i_track = 0;
 271     p_sys->track   = NULL;
 272     p_sys->i_pcr = 0;
 273     p_sys->i_npt_start = 0;
 274     p_sys->i_npt_length = 0;
 275     p_sys->p_out_asf = NULL;
 276     p_sys->b_no_data = true;
 277     p_sys->i_no_data_ti = 0;
 278     p_sys->p_timeout = NULL;
 279     p_sys->i_timeout = 0;
 280     p_sys->b_timeout_call = false;
 281     p_sys->b_multicast = false;
 282     p_sys->b_real = false;
 283     p_sys->psz_path = strdup( p_demux->psz_path );
 284     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 285
 286     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 287     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 288
 289     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 290     {
 291         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 292         goto error;
 293     }
 294     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 295     {
 296         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 297         goto error;
 298     }
 299
 300     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 301     {
 302         char *p = p_sys->psz_path;
 303         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 304     }
 305
 306     if( p_demux->s != NULL )
 307     {
 308         /* Gather the complete sdp file */
 309         int     i_sdp       = 0;
 310         int     i_sdp_max   = 1000;
 311         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 312
 313         if( !p_sdp )
 314         {
 315             i_error = VLC_ENOMEM;
 316             goto error;
 317         }
 318
 319         for( ;; )
 320         {
 321             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 322                                       i_sdp_max - i_sdp - 1 );
 323
 324             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 325             {
 326                 free( p_sdp );
 327                 goto error;
 328             }
 329
 330             if( i_read < 0 )
 331             {
 332                 msg_Err( p_demux, "failed to read SDP" );
 333                 free( p_sdp );
 334                 goto error;
 335             }
 336
 337             i_sdp += i_read;
 338
 339             if( i_read < i_sdp_max - i_sdp - 1 )
 340             {
 341                 p_sdp[i_sdp] = '\0';
 342                 break;
 343             }
 344
 345             i_sdp_max += 1000;
 346             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 347         }
 348         p_sys->p_sdp = (char*)p_sdp;
 349     }
 350     else if( ( p_demux->s == NULL ) &&
 351              !strcasecmp( p_demux->psz_access, "sdp" ) )
 352     {
 353         /* sdp:// link from SAP */
 354         p_sys->p_sdp = strdup( p_sys->psz_path );
 355     }
 356     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 357     {
 358         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 359         goto error;
 360     }
 361
 362     if( p_sys->p_sdp == NULL )
 363     {
 364         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 365         i_error = VLC_ENOMEM;
 366         goto error;
 367     }
 368
 369     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 370     {
 371         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 372         goto error;
 373     }
 374
 375     if( p_sys->b_real ) goto error;
 376
 377     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 378         goto error;
 379
 380     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 381     {
 382         msg_Err( p_demux, "cannot find a usable asf header" );
 383         /* TODO Clean tracks */
 384         goto error;
 385     }
 386
 387     if( p_sys->i_track <= 0 )
 388         goto error;
 389
 390     return VLC_SUCCESS;
 391
 392 error:
 393     for( i = 0; i < p_sys->i_track; i++ )
 394     {
 395         live_track_t *tk = p_sys->track[i];
 396
 397         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 398         es_format_Clean( &tk->fmt );
 399         free( tk->p_buffer );
 400         free( tk );
 401     }
 402
 403     if( p_sys->i_track ) free( p_sys->track );
 404     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 405     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 406     if( p_sys->ms ) Medium::close( p_sys->ms );
 407     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 408     if( p_sys->env ) p_sys->env->reclaim();
 409     if( p_sys->p_timeout )
 410     {
 411         vlc_object_kill( p_sys->p_timeout );
 412         vlc_thread_join( p_sys->p_timeout );
 413         vlc_object_detach( p_sys->p_timeout );
 414         vlc_object_release( p_sys->p_timeout );
 415     }
 416     delete p_sys->scheduler;
 417     free( p_sys->p_sdp );
 418     free( p_sys->psz_path );
 419
 420     vlc_UrlClean( &p_sys->url );
 421
 422     free( p_sys );
 423     return i_error;
 424 }
 425
 426 /*****************************************************************************
 427  * DemuxClose:
 428  *****************************************************************************/
 429 static void Close( vlc_object_t *p_this )
 430 {
 431     demux_t *p_demux = (demux_t*)p_this;
 432     demux_sys_t *p_sys = p_demux->p_sys;
 433     int i;
 434
 435     for( i = 0; i < p_sys->i_track; i++ )
 436     {
 437         live_track_t *tk = p_sys->track[i];
 438
 439         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 440         es_format_Clean( &tk->fmt );
 441         free( tk->p_buffer );
 442         free( tk );
 443     }
 444
 445     if( p_sys->i_track ) free( p_sys->track );
 446     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 447     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 448     if( p_sys->ms ) Medium::close( p_sys->ms );
 449     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 450     if( p_sys->env ) p_sys->env->reclaim();
 451     if( p_sys->p_timeout )
 452     {
 453         vlc_object_kill( p_sys->p_timeout );
 454         vlc_thread_join( p_sys->p_timeout );
 455         vlc_object_detach( p_sys->p_timeout );
 456         vlc_object_release( p_sys->p_timeout );
 457     }
 458     delete p_sys->scheduler;
 459     free( p_sys->p_sdp );
 460     free( p_sys->psz_path );
 461
 462     vlc_UrlClean( &p_sys->url );
 463
 464     free( p_sys );
 465 }
 466
 467 /*****************************************************************************
 468  * Connect: connects to the RTSP server to setup the session DESCRIBE
 469  *****************************************************************************/
 470 static int Connect( demux_t *p_demux )
 471 {
 472     demux_sys_t *p_sys = p_demux->p_sys;
 473     Authenticator authenticator;
 474     bool b_firstpass  = true;
 475     char *psz_user    = NULL;
 476     char *psz_pwd     = NULL;
 477     char *psz_url     = NULL;
 478     char *psz_options = NULL;
 479     char *p_sdp       = NULL;
 480     int  i_http_port  = 0;
 481     int  i_ret        = VLC_SUCCESS;
 482     int i_lefttries;
 483
 484     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 485     if( p_sys->url.psz_username || p_sys->url.psz_password )
 486     {
 487         int err;
 488         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 489                         p_sys->url.i_port, p_sys->url.psz_path );
 490         if( err == -1 ) return VLC_ENOMEM;
 491
 492         psz_user = strdup( p_sys->url.psz_username );
 493         psz_pwd  = strdup( p_sys->url.psz_password );
 494     }
 495     else
 496     {
 497         int err;
 498         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 499         if( err == -1 ) return VLC_ENOMEM;
 500
 501         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 502         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 503     }
 504
 505     i_lefttries = 3;
 506 createnew:
 507     i_lefttries--;
 508     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 509     {
 510         free( psz_user );
 511         free( psz_pwd );
 512         free( psz_url );
 513         return VLC_EGENERIC;
 514     }
 515
 516     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 517         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 518
 519     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 520           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 521           "VLC media player", i_http_port ) ) == NULL )
 522     {
 523         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 524                  p_sys->env->getResultMsg() );
 525         free( psz_user );
 526         free( psz_pwd );
 527         free( psz_url );
 528         return VLC_EGENERIC;
 529     }
 530
 531     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 532      * Appending _KA to the string should be enough to enable this feature,
 533      * however, there is a bug where the _KA doesn't get parsed from the
 534      * default User-Agent as created by VLC/Live555 code. This is probably due
 535      * to spaces in the string or the string being too long. Here we override
 536      * the default string with a more compact version.
 537      */
 538     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 539     {
 540         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 541     }
 542
 543 describe:
 544     authenticator.setUsernameAndPassword( (const char*)psz_user,
 545                                           (const char*)psz_pwd );
 546
 547     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 548                                                &authenticator );
 549     delete [] psz_options;
 550
 551     p_sdp = p_sys->rtsp->describeURL( psz_url, &authenticator,
 552                          var_GetBool( p_demux, "rtsp-kasenna" ) );
 553     if( p_sdp == NULL )
 554     {
 555         /* failure occurred */
 556         int i_code = 0;
 557         const char *psz_error = p_sys->env->getResultMsg();
 558
 559         if( var_GetBool( p_demux, "rtsp-http" ) )
 560             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 561                     &i_code );
 562         else
 563         {
 564             const char *psz_tmp = strstr( psz_error, "RTSP" );
 565             if( psz_tmp )
 566                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 567             else
 568                 i_code = 0;
 569         }
 570         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 571
 572         if( b_firstpass )
 573         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 574              * first time. This is a workaround to avoid asking for a
 575              * user/passwd the first time the code passess here. */
 576             i_code = 0;
 577             b_firstpass = false;
 578         }
 579
 580         if( i_code == 401 )
 581         {
 582             int i_result;
 583             msg_Dbg( p_demux, "authentication failed" );
 584
 585             free( psz_user );
 586             free( psz_pwd );
 587             psz_user = psz_pwd = NULL;
 588
 589             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 590                            _("Please enter a valid login name and a password."),
 591                                                    &psz_user, &psz_pwd );
 592             if( i_result == DIALOG_OK_YES )
 593             {
 594                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 595                          psz_user, psz_pwd );
 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, retrying" );
 613             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 614             p_sys->rtsp = NULL;
 615             if( i_lefttries > 0 )
 616                 goto createnew;
 617         }
 618         i_ret = VLC_EGENERIC;
 619     }
 620
 621     /* malloc-ated copy */
 622     free( psz_url );
 623     free( psz_user );
 624     free( psz_pwd );
 625
 626     free( p_sys->p_sdp );
 627     p_sys->p_sdp = NULL;
 628     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 629     delete[] p_sdp;
 630
 631     return i_ret;
 632 }
 633
 634 /*****************************************************************************
 635  * SessionsSetup: prepares the subsessions and does the SETUP
 636  *****************************************************************************/
 637 static int SessionsSetup( demux_t *p_demux )
 638 {
 639     demux_sys_t             *p_sys  = p_demux->p_sys;
 640     MediaSubsessionIterator *iter   = NULL;
 641     MediaSubsession         *sub    = NULL;
 642
 643     bool     b_rtsp_tcp = false;
 644     int            i_client_port;
 645     int            i_return = VLC_SUCCESS;
 646     unsigned int   i_buffer = 0;
 647     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 648
 649     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 650                     var_GetBool( p_demux, "rtsp-http" );
 651     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 652
 653     /* Create the session from the SDP */
 654     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 655     {
 656         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 657             p_sys->env->getResultMsg() );
 658         return VLC_EGENERIC;
 659     }
 660
 661     /* Initialise each media subsession */
 662     iter = new MediaSubsessionIterator( *p_sys->ms );
 663     while( ( sub = iter->next() ) != NULL )
 664     {
 665         Boolean bInit;
 666         live_track_t *tk;
 667
 668         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 669         {
 670             delete iter;
 671             return VLC_EGENERIC;
 672         }
 673
 674         /* Value taken from mplayer */
 675         if( !strcmp( sub->mediumName(), "audio" ) )
 676             i_buffer = 100000;
 677         else if( !strcmp( sub->mediumName(), "video" ) )
 678             i_buffer = 2000000;
 679         else continue;
 680
 681         if( i_client_port != -1 )
 682         {
 683             sub->setClientPortNum( i_client_port );
 684             i_client_port += 2;
 685         }
 686
 687         if( strcasestr( sub->codecName(), "REAL" ) )
 688         {
 689             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 690             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 691             continue;
 692         }
 693
 694         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 695             bInit = sub->initiate( 4 ); /* Constant ? */
 696         else
 697             bInit = sub->initiate();
 698
 699         if( !bInit )
 700         {
 701             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 702                       sub->mediumName(), sub->codecName(),
 703                       p_sys->env->getResultMsg() );
 704         }
 705         else
 706         {
 707             if( sub->rtpSource() != NULL )
 708             {
 709                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 710
 711                 /* Increase the buffer size */
 712                 if( i_buffer > 0 )
 713                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 714
 715                 /* Increase the RTP reorder timebuffer just a bit */
 716                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 717             }
 718             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 719                      sub->codecName() );
 720
 721             /* Issue the SETUP */
 722             if( p_sys->rtsp )
 723             {
 724                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 725                                            b_rtsp_tcp ? True : False,
 726                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 727                 {
 728                     /* if we get an unsupported transport error, toggle TCP use and try again */
 729                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 730                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 731                                            !b_rtsp_tcp ? False : True,
 732                                            False ) )
 733                     {
 734                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 735                                  sub->codecName(), p_sys->env->getResultMsg() );
 736                         continue;
 737                     }
 738                 }
 739             }
 740
 741             /* Check if we will receive data from this subsession for this track */
 742             if( sub->readSource() == NULL ) continue;
 743             if( !p_sys->b_multicast )
 744             {
 745                 /* Check, because we need diff. rollover behaviour for multicast */
 746                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 747             }
 748
 749             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 750             if( !tk )
 751             {
 752                 delete iter;
 753                 return VLC_ENOMEM;
 754             }
 755             tk->p_demux     = p_demux;
 756             tk->sub         = sub;
 757             tk->p_es        = NULL;
 758             tk->b_quicktime = false;
 759             tk->b_asf       = false;
 760             tk->b_muxed     = false;
 761             tk->p_out_muxed = NULL;
 762             tk->waiting     = 0;
 763             tk->b_rtcp_sync = false;
 764             tk->i_pts       = 0;
 765             tk->i_buffer    = 65536;
 766             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 767             if( !tk->p_buffer )
 768             {
 769                 delete iter;
 770                 return VLC_ENOMEM;
 771             }
 772
 773             /* Value taken from mplayer */
 774             if( !strcmp( sub->mediumName(), "audio" ) )
 775             {
 776                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 777                 tk->fmt.audio.i_channels = sub->numChannels();
 778                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 779
 780                 if( !strcmp( sub->codecName(), "MPA" ) ||
 781                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 782                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 783                 {
 784                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 785                     tk->fmt.audio.i_rate = 0;
 786                 }
 787                 else if( !strcmp( sub->codecName(), "AC3" ) )
 788                 {
 789                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 790                     tk->fmt.audio.i_rate = 0;
 791                 }
 792                 else if( !strcmp( sub->codecName(), "L16" ) )
 793                 {
 794                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 795                     tk->fmt.audio.i_bitspersample = 16;
 796                 }
 797                 else if( !strcmp( sub->codecName(), "L8" ) )
 798                 {
 799                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 800                     tk->fmt.audio.i_bitspersample = 8;
 801                 }
 802                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 803                 {
 804                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 805                 }
 806                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 807                 {
 808                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 809                 }
 810                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 811                 {
 812                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 813                     tk->fmt.audio.i_rate = 8000;
 814                     tk->fmt.audio.i_channels = 1;
 815                     if( !strcmp( sub->codecName()+5, "40" ) )
 816                         tk->fmt.i_bitrate = 40000;
 817                     else if( !strcmp( sub->codecName()+5, "32" ) )
 818                         tk->fmt.i_bitrate = 32000;
 819                     else if( !strcmp( sub->codecName()+5, "24" ) )
 820                         tk->fmt.i_bitrate = 24000;
 821                     else if( !strcmp( sub->codecName()+5, "16" ) )
 822                         tk->fmt.i_bitrate = 16000;
 823                 }
 824                 else if( !strcmp( sub->codecName(), "AMR" ) )
 825                 {
 826                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 827                 }
 828                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 829                 {
 830                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 831                 }
 832                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 833                 {
 834                     unsigned int i_extra;
 835                     uint8_t      *p_extra;
 836
 837                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 838
 839                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 840                                                              i_extra ) ) )
 841                     {
 842                         tk->fmt.i_extra = i_extra;
 843                         tk->fmt.p_extra = malloc( i_extra );
 844                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 845                         delete[] p_extra;
 846                     }
 847                     /* Because the "faad" decoder does not handle the LATM data length field
 848                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 849                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 850                 }
 851                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 852                 {
 853                     unsigned int i_extra;
 854                     uint8_t      *p_extra;
 855
 856                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 857
 858                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 859                                                            i_extra ) ) )
 860                     {
 861                         tk->fmt.i_extra = i_extra;
 862                         tk->fmt.p_extra = malloc( i_extra );
 863                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 864                         delete[] p_extra;
 865                     }
 866                 }
 867                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 868                 {
 869                     tk->b_asf = true;
 870                     if( p_sys->p_out_asf == NULL )
 871                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 872                                                             p_demux->out );
 873                 }
 874                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 875                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 876                 {
 877                     tk->b_quicktime = true;
 878                 }
 879                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 880                 {
 881                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 882                     if ( sub->rtpTimestampFrequency() )
 883                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 884                     else
 885                     {
 886                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 887                         tk->fmt.audio.i_rate = 8000;
 888                     }
 889                 }
 890             }
 891             else if( !strcmp( sub->mediumName(), "video" ) )
 892             {
 893                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 894                 if( !strcmp( sub->codecName(), "MPV" ) )
 895                 {
 896                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 897                 }
 898                 else if( !strcmp( sub->codecName(), "H263" ) ||
 899                          !strcmp( sub->codecName(), "H263-1998" ) ||
 900                          !strcmp( sub->codecName(), "H263-2000" ) )
 901                 {
 902                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 903                 }
 904                 else if( !strcmp( sub->codecName(), "H261" ) )
 905                 {
 906                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 907                 }
 908                 else if( !strcmp( sub->codecName(), "H264" ) )
 909                 {
 910                     unsigned int i_extra = 0;
 911                     uint8_t      *p_extra = NULL;
 912
 913                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 914                     tk->fmt.b_packetized = false;
 915
 916                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 917                                                     i_extra ) ) )
 918                     {
 919                         tk->fmt.i_extra = i_extra;
 920                         tk->fmt.p_extra = malloc( i_extra );
 921                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 922
 923                         delete[] p_extra;
 924                     }
 925                 }
 926                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 927                 {
 928                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 929                 }
 930                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 931                 {
 932                     unsigned int i_extra;
 933                     uint8_t      *p_extra;
 934
 935                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 936
 937                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 938                                                            i_extra ) ) )
 939                     {
 940                         tk->fmt.i_extra = i_extra;
 941                         tk->fmt.p_extra = malloc( i_extra );
 942                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 943                         delete[] p_extra;
 944                     }
 945                 }
 946                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 947                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 948                          !strcmp( sub->codecName(), "X-QDM" ) ||
 949                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 950                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 951                 {
 952                     tk->b_quicktime = true;
 953                 }
 954                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 955                 {
 956                     tk->b_muxed = true;
 957                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 958                 }
 959                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 960                          !strcmp( sub->codecName(), "MP1S" ) )
 961                 {
 962                     tk->b_muxed = true;
 963                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 964                                                        p_demux->out );
 965                 }
 966                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 967                 {
 968                     tk->b_asf = true;
 969                     if( p_sys->p_out_asf == NULL )
 970                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 971                                                             p_demux->out );;
 972                 }
 973             }
 974
 975             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 976             {
 977                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 978             }
 979
 980             if( sub->rtcpInstance() != NULL )
 981             {
 982                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 983             }
 984
 985             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 986             {
 987                 /* Append */
 988                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 989                 p_sys->track[p_sys->i_track++] = tk;
 990             }
 991             else
 992             {
 993                 /* BUG ??? */
 994                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
 995                 es_format_Clean( &tk->fmt );
 996                 free( tk );
 997             }
 998         }
 999     }
1000     delete iter;
1001     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1002
1003     /* Retrieve the starttime if possible */
1004     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1005     if( p_sys->i_npt_start < 0 )
1006         p_sys->i_npt_start = -1;
1007
1008     /* Retrieve the duration if possible */
1009     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1010     if( p_sys->i_npt_length < 0 )
1011         p_sys->i_npt_length = -1;
1012
1013     msg_Dbg( p_demux, "setup start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1014     return i_return;
1015 }
1016
1017 /*****************************************************************************
1018  * Play: starts the actual playback of the stream
1019  *****************************************************************************/
1020 static int Play( demux_t *p_demux )
1021 {
1022     demux_sys_t *p_sys = p_demux->p_sys;
1023     int i;
1024
1025     if( p_sys->rtsp )
1026     {
1027         /* The PLAY */
1028         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1029         {
1030             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1031             return VLC_EGENERIC;
1032         }
1033
1034         /* Retrieve the timeout value and set up a timeout prevention thread */
1035         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1036         if( p_sys->i_timeout <= 0 )
1037             p_sys->i_timeout = 60; /* default value from RFC2326 */
1038
1039         /* start timeout-thread only on x-asf streams (wms), it has rtcp support but doesn't
1040          * seem to use it for liveness/keep-alive, get_parameter seems to work for it. get_parameter
1041          * doesn't work with dss 5.5.4 & 5.5.5, they seems to work with rtcp */
1042         if( !p_sys->p_timeout && p_sys->p_out_asf )
1043         {
1044             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1045             p_sys->p_timeout = (timeout_thread_t *)vlc_object_create( p_demux, sizeof(timeout_thread_t) );
1046             p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1047             if( vlc_thread_create( p_sys->p_timeout, "liveMedia-timeout", TimeoutPrevention,
1048                                    VLC_THREAD_PRIORITY_LOW, true ) )
1049             {
1050                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1051                 vlc_object_release( p_sys->p_timeout );
1052             }
1053             msg_Dbg( p_demux, "spawned timeout thread" );
1054             vlc_object_attach( p_sys->p_timeout, p_demux );
1055         }
1056     }
1057     p_sys->i_pcr = 0;
1058
1059     for( i = 0; i < p_sys->i_track; i++ )
1060     {
1061         if( !p_sys->track[i]->b_rtcp_sync )
1062             p_sys->track[i]->i_pts = (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
1063         p_sys->track[i]->i_start_seq = (int)p_sys->track[i]->sub->rtpInfo.seqNum;
1064         msg_Info( p_demux, "set startseq: %u", p_sys->track[i]->i_start_seq );
1065     }
1066
1067     /* Retrieve the starttime if possible */
1068     p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1069     if( p_sys->i_npt_start < 0 )
1070         p_sys->i_npt_start = -1;
1071
1072     p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1073     if( p_sys->i_npt_length < 0 )
1074         p_sys->i_npt_length = -1;
1075
1076     msg_Dbg( p_demux, "play start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1077     return VLC_SUCCESS;
1078 }
1079
1080
1081 /*****************************************************************************
1082  * Demux:
1083  *****************************************************************************/
1084 static int Demux( demux_t *p_demux )
1085 {
1086     demux_sys_t    *p_sys = p_demux->p_sys;
1087     TaskToken      task;
1088
1089     bool      b_send_pcr = true;
1090     int64_t         i_pcr = 0;
1091     int             i;
1092
1093     /* Check if we need to send the server a Keep-A-Live signal */
1094     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1095     {
1096         char *psz_bye = NULL;
1097         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1098         p_sys->b_timeout_call = false;
1099     }
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             p_sys->i_pcr = 0;
1162             i_pcr = 0;
1163         }
1164     }
1165
1166     if( p_sys->b_multicast && p_sys->b_no_data &&
1167         ( p_sys->i_no_data_ti > 120 ) )
1168     {
1169         /* FIXME Make this configurable
1170         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1171         return 0;
1172         */
1173     }
1174     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1175              ( p_sys->i_no_data_ti > 34 ) )
1176     {
1177         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1178                                 var_GetBool( p_demux, "rtsp-http" );
1179
1180         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1181         {
1182             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1183             if( RollOverTcp( p_demux ) )
1184             {
1185                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1186                 return 0;
1187             }
1188             return 1;
1189         }
1190         msg_Err( p_demux, "no data received in 10s, aborting" );
1191         return 0;
1192     }
1193     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1194     {
1195         /* EOF ? */
1196         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1197         return 0;
1198     }
1199     return p_demux->b_error ? 0 : 1;
1200 }
1201
1202 /*****************************************************************************
1203  * Control:
1204  *****************************************************************************/
1205 static int Control( demux_t *p_demux, int i_query, va_list args )
1206 {
1207     demux_sys_t *p_sys = p_demux->p_sys;
1208     int64_t *pi64;
1209     double  *pf, f;
1210     bool *pb, *pb2, b_bool;
1211     int *pi_int;
1212
1213     switch( i_query )
1214     {
1215         case DEMUX_GET_TIME:
1216             return VLC_EGENERIC;
1217
1218         case DEMUX_GET_LENGTH:
1219             pi64 = (int64_t*)va_arg( args, int64_t * );
1220             if( p_sys->i_npt_length > 0 )
1221             {
1222                 *pi64 = p_sys->i_npt_length;
1223                 return VLC_SUCCESS;
1224             }
1225             return VLC_EGENERIC;
1226
1227         case DEMUX_GET_POSITION:
1228             return VLC_EGENERIC;
1229
1230         case DEMUX_SET_POSITION:
1231         {
1232             float time;
1233
1234             f = (double)va_arg( args, double );
1235             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1236             {
1237                 int i;
1238                 time = f * (double)p_sys->i_npt_length / (double)1000000.0;   /* in second */
1239                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1240                 {
1241                     msg_Err( p_demux, "PLAY failed %s",
1242                         p_sys->env->getResultMsg() );
1243                     return VLC_EGENERIC;
1244                 }
1245                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1246                 p_sys->i_pcr = 0;
1247
1248                 /* Retrieve RTP-Info values */
1249                 for( i = 0; i < p_sys->i_track; i++ )
1250                 {
1251                     p_sys->track[i]->b_rtcp_sync = false;
1252                     p_sys->track[i]->i_pts = (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
1253                     p_sys->track[i]->i_start_seq = p_sys->track[i]->sub->rtpInfo.seqNum;
1254                     msg_Info( p_demux, "set pos startseq: %u", p_sys->track[i]->i_start_seq );
1255                 }
1256
1257                 /* Retrieve the starttime if possible */
1258                 p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1259                 if( p_sys->i_npt_start < 0 )
1260                     p_sys->i_npt_start = -1;
1261
1262                 /* Retrieve the duration if possible */
1263                 p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1264                 if( p_sys->i_npt_length < 0 )
1265                     p_sys->i_npt_length = -1;
1266
1267                 msg_Dbg( p_demux, "seek start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1268                 return VLC_SUCCESS;
1269             }
1270             return VLC_EGENERIC;
1271         }
1272         /* Special for access_demux */
1273         case DEMUX_CAN_PAUSE:
1274         case DEMUX_CAN_SEEK:
1275             pb = (bool*)va_arg( args, bool * );
1276             if( p_sys->rtsp && p_sys->i_npt_length )
1277                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1278                 *pb = true;
1279             else
1280                 *pb = false;
1281             return VLC_SUCCESS;
1282
1283         case DEMUX_CAN_CONTROL_PACE:
1284             pb = (bool*)va_arg( args, bool * );
1285
1286 #if 1       /* Disable for now until we have a clock synchro algo
1287              * which works with something else than MPEG over UDP */
1288             *pb = false;
1289 #else
1290             *pb = true;
1291 #endif
1292             return VLC_SUCCESS;
1293
1294 #if 0
1295         case DEMUX_CAN_CONTROL_RATE:
1296             pb = (bool*)va_arg( args, bool * );
1297             pb2 = (bool*)va_arg( args, bool * );
1298
1299             *pb = p_sys->rtsp != NULL && p_sys->i_npt_length > 0 && !var_GetBool( p_demux, "rtsp-kasenna" );
1300             *pb2 = false;
1301             return VLC_SUCCESS;
1302
1303         case DEMUX_SET_RATE:
1304         {
1305             double f_scale;
1306
1307             if( !p_sys->rtsp || p_sys->i_npt_length <= 0 || var_GetBool( p_demux, "rtsp-kasenna" ) )
1308                 return VLC_EGENERIC;
1309
1310             /* TODO we might want to ensure that the new rate is different from
1311              * old rate after playMediaSession...
1312              * I have no idea how the server map the requested rate to the
1313              * ones it supports.
1314              * ex:
1315              *  current is x2 we request x1.5 if the server return x2 we will
1316              *  never succeed to return to x1.
1317              *  In this case we should retry with a lower rate until we have
1318              *  one (even x1).
1319              */
1320
1321             pi_int = (int*)va_arg( args, int * );
1322             f_scale = (double)INPUT_RATE_DEFAULT / (*p_int);
1323
1324             /* Passing -1 for the start and end time will mean liveMedia won't
1325             * create a Range: section for the RTSP message. The server should
1326             * pick up from the current position */
1327             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1328             {
1329                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1330                         p_sys->env->getResultMsg() );
1331                 return VLC_EGENERIC;
1332             }
1333             /* ReSync the stream */
1334             p_sys->i_npt_start = 0;
1335             p_sys->i_pcr = 0;
1336             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1337
1338             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() + 0.5 );
1339             return VLC_SUCCESS;
1340         }
1341 #endif
1342
1343         case DEMUX_SET_PAUSE_STATE:
1344         {
1345             int i;
1346
1347             b_bool = (bool)va_arg( args, int );
1348             if( p_sys->rtsp == NULL )
1349                 return VLC_EGENERIC;
1350
1351             /* FIXME */
1352             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1353                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1354                        -1 ) ) )
1355             {
1356                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1357                     return VLC_EGENERIC;
1358             }
1359
1360             /* When we Pause, we'll need the TimeoutPrevention thread to
1361              * handle sending the "Keep Alive" message to the server.
1362              * Unfortunately Live555 isn't thread safe and so can't
1363              * do this normally while the main Demux thread is handling
1364              * a live stream. We end up with the Timeout thread blocking
1365              * waiting for a response from the server. So when we PAUSE
1366              * we set a flag that the TimeoutPrevention function will check
1367              * and if it's set, it will trigger the GET_PARAMETER message */
1368             if( b_bool && p_sys->p_timeout != NULL )
1369                 p_sys->p_timeout->b_handle_keep_alive = true;
1370             else if( !b_bool && p_sys->p_timeout != NULL )
1371                 p_sys->p_timeout->b_handle_keep_alive = false;
1372
1373             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1374             p_sys->i_pcr = 0;
1375
1376             for( i = 0; i < p_sys->i_track; i++ )
1377             {
1378                 if( !p_sys->track[i]->b_rtcp_sync )
1379                     p_sys->track[i]->i_pts = 0; // (int64_t) ( p_sys->track[i]->sub->rtpInfo.timestamp * (double)1000000.0 );
1380                 p_sys->track[i]->i_start_seq = p_sys->track[i]->sub->rtpInfo.seqNum;
1381                 msg_Info( p_demux, "set pause startseq: %u", p_sys->track[i]->i_start_seq );
1382             }
1383
1384             /* Retrieve the starttime if possible */
1385             p_sys->i_npt_start = (int64_t)( p_sys->ms->playStartTime() * (double)1000000.0 );
1386             if( p_sys->i_npt_start < 0 )
1387                 p_sys->i_npt_start = -1;
1388
1389             /* Retrieve the duration if possible */
1390             p_sys->i_npt_length = (int64_t)( p_sys->ms->playEndTime() * (double)1000000.0 );
1391             if( p_sys->i_npt_length < 0 )
1392                 p_sys->i_npt_length = -1;
1393
1394             msg_Dbg( p_demux, "pause start: %lld stop:%lld", p_sys->i_npt_start, p_sys->i_npt_length );
1395             return VLC_SUCCESS;
1396         }
1397         case DEMUX_GET_TITLE_INFO:
1398         case DEMUX_SET_TITLE:
1399         case DEMUX_SET_SEEKPOINT:
1400             return VLC_EGENERIC;
1401
1402         case DEMUX_GET_PTS_DELAY:
1403             pi64 = (int64_t*)va_arg( args, int64_t * );
1404             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1405             return VLC_SUCCESS;
1406
1407         default:
1408             return VLC_EGENERIC;
1409     }
1410 }
1411
1412 /*****************************************************************************
1413  * RollOverTcp: reopen the rtsp into TCP mode
1414  * XXX: ugly, a lot of code are duplicated from Open()
1415  * This should REALLY be fixed
1416  *****************************************************************************/
1417 static int RollOverTcp( demux_t *p_demux )
1418 {
1419     demux_sys_t *p_sys = p_demux->p_sys;
1420     int i, i_return;
1421
1422     var_SetBool( p_demux, "rtsp-tcp", true );
1423
1424     /* We close the old RTSP session */
1425     for( i = 0; i < p_sys->i_track; i++ )
1426     {
1427         live_track_t *tk = p_sys->track[i];
1428
1429         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1430         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1431         es_format_Clean( &tk->fmt );
1432         free( tk->p_buffer );
1433         free( tk );
1434     }
1435     if( p_sys->i_track ) free( p_sys->track );
1436     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1437
1438     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1439     Medium::close( p_sys->ms );
1440     RTSPClient::close( p_sys->rtsp );
1441
1442     p_sys->ms = NULL;
1443     p_sys->rtsp = NULL;
1444     p_sys->track = NULL;
1445     p_sys->i_track = 0;
1446
1447     /* Reopen rtsp client */
1448     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1449     {
1450         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1451                  p_sys->psz_path );
1452         goto error;
1453     }
1454
1455     if( p_sys->p_sdp == NULL )
1456     {
1457         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1458         goto error;
1459     }
1460
1461     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1462     {
1463         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1464         goto error;
1465     }
1466
1467     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1468         goto error;
1469
1470     return VLC_SUCCESS;
1471
1472 error:
1473     return VLC_EGENERIC;
1474 }
1475
1476
1477 /*****************************************************************************
1478  *
1479  *****************************************************************************/
1480 static void StreamRead( void *p_private, unsigned int i_size,
1481                         unsigned int i_truncated_bytes, struct timeval pts,
1482                         unsigned int duration )
1483 {
1484     live_track_t   *tk = (live_track_t*)p_private;
1485     demux_t        *p_demux = tk->p_demux;
1486     demux_sys_t    *p_sys = p_demux->p_sys;
1487     block_t        *p_block;
1488
1489     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1490
1491     int64_t i_pts = (uint64_t)pts.tv_sec * UINT64_C(1000000) +
1492         (uint64_t)pts.tv_usec;
1493
1494     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1495     i_pts &= UINT64_C(0x00ffffffffffffff);
1496
1497     if( tk->b_quicktime && tk->p_es == NULL )
1498     {
1499         QuickTimeGenericRTPSource *qtRTPSource =
1500             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1501         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1502         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1503
1504         if( tk->fmt.i_cat == VIDEO_ES ) {
1505             if( qtState.sdAtomSize < 16 + 32 )
1506             {
1507                 /* invalid */
1508                 p_sys->event = 0xff;
1509                 tk->waiting = 0;
1510                 return;
1511             }
1512             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1513             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1514             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1515
1516             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1517             {
1518                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1519                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1520                                   + qtRTPSource->qtState.sdAtomSize;
1521                 while (pos+8 < endpos) {
1522                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1523                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1524                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1525                         atomLength > 8 &&
1526                         atomLength <= INT_MAX )
1527                     {
1528                         tk->fmt.i_extra = atomLength-8;
1529                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1530                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1531                         break;
1532                     }
1533                     pos += atomLength;
1534                 }
1535             }
1536             else
1537             {
1538                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1539                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1540                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1541             }
1542         }
1543         else {
1544             if( qtState.sdAtomSize < 4 )
1545             {
1546                 /* invalid */
1547                 p_sys->event = 0xff;
1548                 tk->waiting = 0;
1549                 return;
1550             }
1551             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1552         }
1553         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1554     }
1555
1556 #if 0
1557     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1558              i_size,
1559              pts.tv_sec * 1000000LL + pts.tv_usec );
1560 #endif
1561
1562     /* grow buffer if it looks like buffer is too small, but don't eat
1563      * up all the memory on strange streams */
1564     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1565     {
1566         void *p_tmp;
1567         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1568         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1569         tk->i_buffer *= 2;
1570         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1571         if( p_tmp == NULL )
1572         {
1573             msg_Warn( p_demux, "realloc failed" );
1574         }
1575         else
1576         {
1577             tk->p_buffer = (uint8_t*)p_tmp;
1578         }
1579     }
1580     if( i_size > tk->i_buffer )
1581     {
1582         msg_Warn( p_demux, "buffer overflow" );
1583     }
1584     /* FIXME could i_size be > buffer size ? */
1585     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1586         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1587     {
1588         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1589
1590         p_block = block_New( p_demux, i_size + 1 );
1591         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1592         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1593     }
1594     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1595     {
1596         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1597         uint32_t header = h261Source->lastSpecialHeader();
1598         p_block = block_New( p_demux, i_size + 4 );
1599         memcpy( p_block->p_buffer, &header, 4 );
1600         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1601
1602         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1603             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1604     }
1605     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1606     {
1607         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1608             msg_Warn( p_demux, "unsupported NAL type for H264" );
1609
1610         /* Normal NAL type */
1611         p_block = block_New( p_demux, i_size + 4 );
1612         p_block->p_buffer[0] = 0x00;
1613         p_block->p_buffer[1] = 0x00;
1614         p_block->p_buffer[2] = 0x00;
1615         p_block->p_buffer[3] = 0x01;
1616         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1617     }
1618     else if( tk->b_asf )
1619     {
1620         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1621         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1622
1623         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1624     }
1625     else
1626     {
1627         p_block = block_New( p_demux, i_size );
1628         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1629     }
1630
1631     if( p_sys->i_pcr < i_pts )
1632     {
1633         p_sys->i_pcr = i_pts;
1634     }
1635
1636     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1637     {
1638         p_block->i_pts = i_pts;
1639     }
1640     if( !tk->b_muxed )
1641     {
1642         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1643         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1644     }
1645
1646     if( tk->b_muxed )
1647     {
1648         stream_DemuxSend( tk->p_out_muxed, p_block );
1649     }
1650     else if( tk->b_asf )
1651     {
1652         stream_DemuxSend( p_sys->p_out_asf, p_block );
1653     }
1654     else
1655     {
1656         es_out_Send( p_demux->out, tk->p_es, p_block );
1657     }
1658
1659     /* warn that's ok */
1660     p_sys->event = 0xff;
1661
1662     /* we have read data */
1663     tk->waiting = 0;
1664     p_demux->p_sys->b_no_data = false;
1665     p_demux->p_sys->i_no_data_ti = 0;
1666
1667     if( i_pts > 0 && !tk->b_muxed )
1668     {
1669         tk->i_pts = i_pts;
1670     }
1671 }
1672
1673 /*****************************************************************************
1674  *
1675  *****************************************************************************/
1676 static void StreamClose( void *p_private )
1677 {
1678     live_track_t   *tk = (live_track_t*)p_private;
1679     demux_t        *p_demux = tk->p_demux;
1680     demux_sys_t    *p_sys = p_demux->p_sys;
1681
1682     msg_Dbg( p_demux, "StreamClose" );
1683
1684     p_sys->event = 0xff;
1685     p_demux->b_error = true;
1686 }
1687
1688
1689 /*****************************************************************************
1690  *
1691  *****************************************************************************/
1692 static void TaskInterrupt( void *p_private )
1693 {
1694     demux_t *p_demux = (demux_t*)p_private;
1695
1696     p_demux->p_sys->i_no_data_ti++;
1697
1698     /* Avoid lock */
1699     p_demux->p_sys->event = 0xff;
1700 }
1701
1702 /*****************************************************************************
1703  *
1704  *****************************************************************************/
1705 static void TimeoutPrevention( timeout_thread_t *p_timeout )
1706 {
1707     p_timeout->b_die = false;
1708     p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1709     p_timeout->i_remain *= 1000000;
1710
1711     vlc_thread_ready( p_timeout );
1712
1713     /* Avoid lock */
1714     while( vlc_object_alive (p_timeout) )
1715     {
1716         if( p_timeout->i_remain <= 0 )
1717         {
1718             char *psz_bye = NULL;
1719             p_timeout->i_remain = (int64_t)p_timeout->p_sys->i_timeout -2;
1720             p_timeout->i_remain *= 1000000;
1721             msg_Dbg( p_timeout, "reset the timeout timer" );
1722             if( p_timeout->b_handle_keep_alive == true )
1723             {
1724                 p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1725                 p_timeout->p_sys->b_timeout_call = false;
1726             }
1727             else
1728             {
1729                 p_timeout->p_sys->b_timeout_call = true;
1730             }
1731         }
1732         p_timeout->i_remain -= 200000;
1733         msleep( 200000 ); /* 200 ms */
1734     }
1735 }
1736
1737 /*****************************************************************************
1738  *
1739  *****************************************************************************/
1740 static int b64_decode( char *dest, char *src );
1741
1742 static int ParseASF( demux_t *p_demux )
1743 {
1744     demux_sys_t    *p_sys = p_demux->p_sys;
1745
1746     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1747     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1748     char *psz_end;
1749     block_t *p_header;
1750
1751     /* Parse the asf header */
1752     if( psz_asf == NULL )
1753         return VLC_EGENERIC;
1754
1755     psz_asf += strlen( psz_marker );
1756     psz_asf = strdup( psz_asf );    /* Duplicate it */
1757     psz_end = strchr( psz_asf, '\n' );
1758
1759     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1760         *psz_end-- = '\0';
1761
1762     if( psz_asf >= psz_end )
1763     {
1764         free( psz_asf );
1765         return VLC_EGENERIC;
1766     }
1767
1768     /* Always smaller */
1769     p_header = block_New( p_demux, psz_end - psz_asf );
1770     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1771     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1772     if( p_header->i_buffer <= 0 )
1773     {
1774         free( psz_asf );
1775         return VLC_EGENERIC;
1776     }
1777
1778     /* Parse it to get packet size */
1779     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1780
1781     /* Send it to demuxer */
1782     stream_DemuxSend( p_sys->p_out_asf, p_header );
1783
1784     free( psz_asf );
1785     return VLC_SUCCESS;
1786 }
1787
1788
1789 static unsigned char* parseH264ConfigStr( char const* configStr,
1790                                           unsigned int& configSize )
1791 {
1792     char *dup, *psz;
1793     int i, i_records = 1;
1794
1795     if( configSize )
1796     configSize = 0;
1797
1798     if( configStr == NULL || *configStr == '\0' )
1799         return NULL;
1800
1801     psz = dup = strdup( configStr );
1802
1803     /* Count the number of comma's */
1804     for( psz = dup; *psz != '\0'; ++psz )
1805     {
1806         if( *psz == ',')
1807         {
1808             ++i_records;
1809             *psz = '\0';
1810         }
1811     }
1812
1813     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1814     psz = dup;
1815     for( i = 0; i < i_records; i++ )
1816     {
1817         cfg[configSize++] = 0x00;
1818         cfg[configSize++] = 0x00;
1819         cfg[configSize++] = 0x00;
1820         cfg[configSize++] = 0x01;
1821
1822         configSize += b64_decode( (char*)&cfg[configSize], psz );
1823         psz += strlen(psz)+1;
1824     }
1825
1826     free( dup );
1827     return cfg;
1828 }
1829
1830 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1831 static int b64_decode( char *dest, char *src )
1832 {
1833     const char *dest_start = dest;
1834     int  i_level;
1835     int  last = 0;
1836     int  b64[256] = {
1837         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1838         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1839         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1840         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1841         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1842         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1843         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1844         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1845         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1846         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1847         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1848         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1849         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1850         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1851         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1852         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1853         };
1854
1855     for( i_level = 0; *src != '\0'; src++ )
1856     {
1857         int  c;
1858
1859         c = b64[(unsigned int)*src];
1860         if( c == -1 )
1861         {
1862             continue;
1863         }
1864
1865         switch( i_level )
1866         {
1867             case 0:
1868                 i_level++;
1869                 break;
1870             case 1:
1871                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1872                 i_level++;
1873                 break;
1874             case 2:
1875                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1876                 i_level++;
1877                 break;
1878             case 3:
1879                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1880                 i_level = 0;
1881         }
1882         last = c;
1883     }
1884
1885     *dest = '\0';
1886
1887     return dest - dest_start;
1888 }