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

   1 /*****************************************************************************
   2  * live555.cpp : LIVE555 Streaming Media support.
   3  *****************************************************************************
   4  * Copyright (C) 2003-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Derk-Jan Hartman <hartman at videolan. org>
   9  *          Derk-Jan Hartman <djhartman at m2x .dot. nl> for M2X
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29
  30 /* For inttypes.h
  31  * Note: config.h may include inttypes.h, so make sure we define this option
  32  * early enough. */
  33 #define __STDC_CONSTANT_MACROS 1
  34
  35 #ifdef HAVE_CONFIG_H
  36 # include "config.h"
  37 #endif
  38
  39 #include <inttypes.h>
  40
  41 #include <vlc_common.h>
  42 #include <vlc_plugin.h>
  43 #include <vlc_input.h>
  44 #include <vlc_demux.h>
  45 #include <vlc_dialog.h>
  46 #include <vlc_network.h>
  47 #include <vlc_url.h>
  48
  49 #include <iostream>
  50 #include <limits.h>
  51 #include <assert.h>
  52
  53
  54 #if defined( WIN32 )
  55 #   include <winsock2.h>
  56 #endif
  57
  58 #include "UsageEnvironment.hh"
  59 #include "BasicUsageEnvironment.hh"
  60 #include "GroupsockHelper.hh"
  61 #include "liveMedia.hh"
  62
  63 extern "C" {
  64 #include "../access/mms/asf.h"  /* Who said ugly ? */
  65 }
  66
  67 using namespace std;
  68
  69 /*****************************************************************************
  70  * Module descriptor
  71  *****************************************************************************/
  72 static int  Open ( vlc_object_t * );
  73 static void Close( vlc_object_t * );
  74
  75 #define CACHING_TEXT N_("Caching value (ms)")
  76 #define CACHING_LONGTEXT N_( \
  77     "Allows you to modify the default caching value for RTSP streams. This " \
  78     "value should be set in millisecond units." )
  79
  80 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  81 #define KASENNA_LONGTEXT N_( "Kasenna servers use an old and unstandard " \
  82     "dialect of RTSP. When you set this parameter, VLC will try this dialect "\
  83     "for communication. In this mode you cannot connect to normal RTSP servers." )
  84
  85 #define USER_TEXT N_("RTSP user name")
  86 #define USER_LONGTEXT N_("Allows you to modify the user name that will " \
  87     "be used for authenticating the connection.")
  88 #define PASS_TEXT N_("RTSP password")
  89 #define PASS_LONGTEXT N_("Allows you to modify the password that will be " \
  90     "used for the connection.")
  91
  92 vlc_module_begin ()
  93     set_description( N_("RTP/RTSP/SDP demuxer (using Live555)" ) )
  94     set_capability( "demux", 50 )
  95     set_shortname( "RTP/RTSP")
  96     set_callbacks( Open, Close )
  97     add_shortcut( "live" )
  98     add_shortcut( "livedotcom" )
  99     set_category( CAT_INPUT )
 100     set_subcategory( SUBCAT_INPUT_DEMUX )
 101
 102     add_submodule ()
 103         set_description( N_("RTSP/RTP access and demux") )
 104         add_shortcut( "rtsp" )
 105         add_shortcut( "sdp" )
 106         set_capability( "access_demux", 0 )
 107         set_callbacks( Open, Close )
 108         add_bool( "rtsp-tcp", 0, NULL,
 109                   N_("Use RTP over RTSP (TCP)"),
 110                   N_("Use RTP over RTSP (TCP)"), true )
 111         add_integer( "rtp-client-port", -1, NULL,
 112                   N_("Client port"),
 113                   N_("Port to use for the RTP source of the session"), true )
 114         add_bool( "rtsp-mcast", false, NULL,
 115                   N_("Force multicast RTP via RTSP"),
 116                   N_("Force multicast RTP via RTSP"), true )
 117         add_bool( "rtsp-http", 0, NULL,
 118                   N_("Tunnel RTSP and RTP over HTTP"),
 119                   N_("Tunnel RTSP and RTP over HTTP"), true )
 120         add_integer( "rtsp-http-port", 80, NULL,
 121                   N_("HTTP tunnel port"),
 122                   N_("Port to use for tunneling the RTSP/RTP over HTTP."),
 123                   true )
 124         add_integer("rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
 125                     CACHING_TEXT, CACHING_LONGTEXT, true )
 126         add_bool(   "rtsp-kasenna", false, NULL, KASENNA_TEXT,
 127                     KASENNA_LONGTEXT, true )
 128         add_string( "rtsp-user", NULL, NULL, USER_TEXT,
 129                     USER_LONGTEXT, true )
 130         add_string( "rtsp-pwd", NULL, NULL, PASS_TEXT,
 131                     PASS_LONGTEXT, true )
 132 vlc_module_end ()
 133
 134
 135 /*****************************************************************************
 136  * Local prototypes
 137  *****************************************************************************/
 138
 139 typedef struct
 140 {
 141     demux_t         *p_demux;
 142     MediaSubsession *sub;
 143
 144     es_format_t     fmt;
 145     es_out_id_t     *p_es;
 146
 147     bool            b_muxed;
 148     bool            b_quicktime;
 149     bool            b_asf;
 150     stream_t        *p_out_muxed;    /* for muxed stream */
 151
 152     uint8_t         *p_buffer;
 153     unsigned int    i_buffer;
 154
 155     bool            b_rtcp_sync;
 156     char            waiting;
 157     int64_t         i_pts;
 158     float           i_npt;
 159
 160 } live_track_t;
 161
 162 struct timeout_thread_t
 163 {
 164     demux_sys_t  *p_sys;
 165     vlc_thread_t handle;
 166     bool         b_handle_keep_alive;
 167 };
 168
 169 struct demux_sys_t
 170 {
 171     char            *p_sdp;    /* XXX mallocated */
 172     char            *psz_path; /* URL-encoded path */
 173     vlc_url_t       url;
 174
 175     MediaSession     *ms;
 176     TaskScheduler    *scheduler;
 177     UsageEnvironment *env ;
 178     RTSPClient       *rtsp;
 179
 180     /* */
 181     int              i_track;
 182     live_track_t     **track;   /* XXX mallocated */
 183
 184     /* Weird formats */
 185     asf_header_t     asfh;
 186     stream_t         *p_out_asf;
 187     bool             b_real;
 188
 189     /* */
 190     int64_t          i_pcr; /* The clock */
 191     float            i_npt;
 192     float            i_npt_length;
 193     float            i_npt_start;
 194
 195     /* timeout thread information */
 196     int              i_timeout;     /* session timeout value in seconds */
 197     bool             b_timeout_call;/* mark to send an RTSP call to prevent server timeout */
 198     timeout_thread_t *p_timeout;    /* the actual thread that makes sure we don't timeout */
 199
 200     /* */
 201     bool             b_force_mcast;
 202     bool             b_multicast;   /* if one of the tracks is multicasted */
 203     bool             b_no_data;     /* if we never received any data */
 204     int              i_no_data_ti;  /* consecutive number of TaskInterrupt */
 205
 206     char             event;
 207
 208     bool             b_get_param;   /* Does the server support GET_PARAMETER */
 209 };
 210
 211 static int Demux  ( demux_t * );
 212 static int Control( demux_t *, int, va_list );
 213
 214 static int Connect      ( demux_t * );
 215 static int SessionsSetup( demux_t * );
 216 static int Play         ( demux_t *);
 217 static int ParseASF     ( demux_t * );
 218 static int RollOverTcp  ( demux_t * );
 219
 220 static void StreamRead  ( void *, unsigned int, unsigned int,
 221                           struct timeval, unsigned int );
 222 static void StreamClose ( void * );
 223 static void TaskInterrupt( void * );
 224
 225 static void* TimeoutPrevention( void * );
 226
 227 static unsigned char* parseH264ConfigStr( char const* configStr,
 228                                           unsigned int& configSize );
 229
 230 /*****************************************************************************
 231  * DemuxOpen:
 232  *****************************************************************************/
 233 static int  Open ( vlc_object_t *p_this )
 234 {
 235     demux_t     *p_demux = (demux_t*)p_this;
 236     demux_sys_t *p_sys = NULL;
 237
 238     int i, i_return;
 239     int i_error = VLC_EGENERIC;
 240
 241     if( p_demux->s )
 242     {
 243         /* See if it looks like a SDP
 244            v, o, s fields are mandatory and in this order */
 245         const uint8_t *p_peek;
 246         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 247
 248         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 249             memcmp( p_peek, "v=0\n", 4 ) &&
 250             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 251         {
 252             return VLC_EGENERIC;
 253         }
 254     }
 255     else
 256     {
 257         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 258     }
 259
 260     p_demux->pf_demux  = Demux;
 261     p_demux->pf_control= Control;
 262     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 263     if( !p_sys ) return VLC_ENOMEM;
 264
 265     p_sys->p_sdp = NULL;
 266     p_sys->scheduler = NULL;
 267     p_sys->env = NULL;
 268     p_sys->ms = NULL;
 269     p_sys->rtsp = NULL;
 270     p_sys->i_track = 0;
 271     p_sys->track   = NULL;
 272     p_sys->i_pcr = 0;
 273     p_sys->i_npt = 0.;
 274     p_sys->i_npt_start = 0.;
 275     p_sys->i_npt_length = 0.;
 276     p_sys->p_out_asf = NULL;
 277     p_sys->b_no_data = true;
 278     p_sys->i_no_data_ti = 0;
 279     p_sys->p_timeout = NULL;
 280     p_sys->i_timeout = 0;
 281     p_sys->b_timeout_call = false;
 282     p_sys->b_multicast = false;
 283     p_sys->b_real = false;
 284     p_sys->psz_path = strdup( p_demux->psz_path );
 285     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 286     p_sys->b_get_param = false;
 287
 288     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 289     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 290
 291     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 292     {
 293         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 294         goto error;
 295     }
 296     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 297     {
 298         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 299         goto error;
 300     }
 301
 302     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 303     {
 304         char *p = p_sys->psz_path;
 305         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 306     }
 307
 308     if( p_demux->s != NULL )
 309     {
 310         /* Gather the complete sdp file */
 311         int     i_sdp       = 0;
 312         int     i_sdp_max   = 1000;
 313         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 314
 315         if( !p_sdp )
 316         {
 317             i_error = VLC_ENOMEM;
 318             goto error;
 319         }
 320
 321         for( ;; )
 322         {
 323             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 324                                       i_sdp_max - i_sdp - 1 );
 325
 326             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 327             {
 328                 free( p_sdp );
 329                 goto error;
 330             }
 331
 332             if( i_read < 0 )
 333             {
 334                 msg_Err( p_demux, "failed to read SDP" );
 335                 free( p_sdp );
 336                 goto error;
 337             }
 338
 339             i_sdp += i_read;
 340
 341             if( i_read < i_sdp_max - i_sdp - 1 )
 342             {
 343                 p_sdp[i_sdp] = '\0';
 344                 break;
 345             }
 346
 347             i_sdp_max += 1000;
 348             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 349         }
 350         p_sys->p_sdp = (char*)p_sdp;
 351     }
 352     else if( ( p_demux->s == NULL ) &&
 353              !strcasecmp( p_demux->psz_access, "sdp" ) )
 354     {
 355         /* sdp:// link from SAP */
 356         p_sys->p_sdp = strdup( p_sys->psz_path );
 357     }
 358     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 359     {
 360         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 361         goto error;
 362     }
 363
 364     if( p_sys->p_sdp == NULL )
 365     {
 366         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 367         i_error = VLC_ENOMEM;
 368         goto error;
 369     }
 370
 371     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 372     {
 373         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 374         goto error;
 375     }
 376
 377     if( p_sys->b_real ) goto error;
 378
 379     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 380         goto error;
 381
 382     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 383     {
 384         msg_Err( p_demux, "cannot find a usable asf header" );
 385         /* TODO Clean tracks */
 386         goto error;
 387     }
 388
 389     if( p_sys->i_track <= 0 )
 390         goto error;
 391
 392     return VLC_SUCCESS;
 393
 394 error:
 395     for( i = 0; i < p_sys->i_track; i++ )
 396     {
 397         live_track_t *tk = p_sys->track[i];
 398
 399         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 400         es_format_Clean( &tk->fmt );
 401         free( tk->p_buffer );
 402         free( tk );
 403     }
 404
 405     if( p_sys->i_track ) free( p_sys->track );
 406     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 407     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 408     if( p_sys->p_timeout )
 409     {
 410         vlc_cancel( p_sys->p_timeout->handle );
 411         vlc_join( p_sys->p_timeout->handle, NULL );
 412         free( p_sys->p_timeout );
 413     }
 414     if( p_sys->ms ) Medium::close( p_sys->ms );
 415     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 416     if( p_sys->env ) p_sys->env->reclaim();
 417     delete p_sys->scheduler;
 418     free( p_sys->p_sdp );
 419     free( p_sys->psz_path );
 420
 421     vlc_UrlClean( &p_sys->url );
 422
 423     free( p_sys );
 424     return i_error;
 425 }
 426
 427 /*****************************************************************************
 428  * DemuxClose:
 429  *****************************************************************************/
 430 static void Close( vlc_object_t *p_this )
 431 {
 432     demux_t *p_demux = (demux_t*)p_this;
 433     demux_sys_t *p_sys = p_demux->p_sys;
 434     int i;
 435
 436     for( i = 0; i < p_sys->i_track; i++ )
 437     {
 438         live_track_t *tk = p_sys->track[i];
 439
 440         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
 441         es_format_Clean( &tk->fmt );
 442         free( tk->p_buffer );
 443         free( tk );
 444     }
 445
 446     if( p_sys->i_track ) free( p_sys->track );
 447     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
 448     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 449     if( p_sys->p_timeout )
 450     {
 451         vlc_cancel( p_sys->p_timeout->handle );
 452         vlc_join( p_sys->p_timeout->handle, NULL );
 453         free( p_sys->p_timeout );
 454     }
 455     if( p_sys->ms ) Medium::close( p_sys->ms );
 456     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 457     if( p_sys->env ) p_sys->env->reclaim();
 458     delete p_sys->scheduler;
 459     free( p_sys->p_sdp );
 460     free( p_sys->psz_path );
 461
 462     vlc_UrlClean( &p_sys->url );
 463
 464     free( p_sys );
 465 }
 466
 467 /*****************************************************************************
 468  * Connect: connects to the RTSP server to setup the session DESCRIBE
 469  *****************************************************************************/
 470 static int Connect( demux_t *p_demux )
 471 {
 472     demux_sys_t *p_sys = p_demux->p_sys;
 473     Authenticator authenticator;
 474     bool b_firstpass  = true;
 475     char *psz_user    = NULL;
 476     char *psz_pwd     = NULL;
 477     char *psz_url     = NULL;
 478     char *psz_options = NULL;
 479     char *p_sdp       = NULL;
 480     int  i_http_port  = 0;
 481     int  i_ret        = VLC_SUCCESS;
 482     int timeout;
 483
 484     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 485     if( p_sys->url.psz_username || p_sys->url.psz_password )
 486     {
 487         int err;
 488         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 489                         p_sys->url.i_port, p_sys->url.psz_path );
 490         if( err == -1 ) return VLC_ENOMEM;
 491
 492         psz_user = strdup( p_sys->url.psz_username );
 493         psz_pwd  = strdup( p_sys->url.psz_password );
 494     }
 495     else
 496     {
 497         int err;
 498         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 499         if( err == -1 ) return VLC_ENOMEM;
 500
 501         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 502         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 503     }
 504
 505 createnew:
 506     if( !vlc_object_alive (p_demux) || p_demux->b_error )
 507     {
 508         free( psz_user );
 509         free( psz_pwd );
 510         free( psz_url );
 511         return VLC_EGENERIC;
 512     }
 513
 514     if( var_CreateGetBool( p_demux, "rtsp-http" ) )
 515         i_http_port = var_CreateGetInteger( p_demux, "rtsp-http-port" );
 516
 517     if( ( p_sys->rtsp = RTSPClient::createNew( *p_sys->env,
 518           var_CreateGetInteger( p_demux, "verbose" ) > 1,
 519           "VLC media player", i_http_port ) ) == NULL )
 520     {
 521         msg_Err( p_demux, "RTSPClient::createNew failed (%s)",
 522                  p_sys->env->getResultMsg() );
 523         free( psz_user );
 524         free( psz_pwd );
 525         free( psz_url );
 526         return VLC_EGENERIC;
 527     }
 528
 529     /* Kasenna enables KeepAlive by analysing the User-Agent string.
 530      * Appending _KA to the string should be enough to enable this feature,
 531      * however, there is a bug where the _KA doesn't get parsed from the
 532      * default User-Agent as created by VLC/Live555 code. This is probably due
 533      * to spaces in the string or the string being too long. Here we override
 534      * the default string with a more compact version.
 535      */
 536     if( var_CreateGetBool( p_demux, "rtsp-kasenna" ))
 537     {
 538         p_sys->rtsp->setUserAgentString( "VLC_MEDIA_PLAYER_KA" );
 539     }
 540
 541 describe:
 542     authenticator.setUsernameAndPassword( (const char*)psz_user,
 543                                           (const char*)psz_pwd );
 544
 545     timeout = var_CreateGetInteger(p_demux, "ipv4-timeout");
 546     timeout /= 1000;
 547
 548 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 549     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 550                                                &authenticator, timeout );
 551 #else
 552     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 553                                                &authenticator );
 554 #endif
 555     if( psz_options == NULL && authenticator.realm() != NULL )
 556     {
 557         // try again, with the realm set this time
 558 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 559         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 560                                                &authenticator, timeout );
 561 #else
 562         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 563                                                &authenticator );
 564 #endif
 565     }
 566     if( psz_options )
 567         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 568     delete [] psz_options;
 569
 570 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 571     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 572                                           var_GetBool( p_demux, "rtsp-kasenna" ), timeout );
 573 #else
 574     p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 575                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
 576 #endif
 577
 578     if( p_sdp == NULL )
 579     {
 580         /* failure occurred */
 581         int i_code = 0;
 582         const char *psz_error = p_sys->env->getResultMsg();
 583
 584         if( var_GetBool( p_demux, "rtsp-http" ) )
 585             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 586                     &i_code );
 587         else
 588         {
 589             const char *psz_tmp = strstr( psz_error, "RTSP" );
 590             if( psz_tmp )
 591                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 592             else
 593                 i_code = 0;
 594         }
 595         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 596
 597         if( b_firstpass )
 598         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 599              * first time. This is a workaround to avoid asking for a
 600              * user/passwd the first time the code passess here. */
 601             i_code = 0;
 602             b_firstpass = false;
 603         }
 604
 605         if( i_code == 401 )
 606         {
 607             msg_Dbg( p_demux, "authentication failed" );
 608
 609             free( psz_user );
 610             free( psz_pwd );
 611             dialog_Login( p_demux, &psz_user, &psz_pwd,
 612                           _("RTSP authentication"),
 613                         _("Please enter a valid login name and a password.") );
 614             if( psz_user != NULL && psz_pwd != NULL )
 615             {
 616                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 617                          psz_user, psz_pwd );
 618                 goto describe;
 619             }
 620         }
 621         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 622         {
 623             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 624             vlc_value_t val;
 625             val.b_bool = true;
 626             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 627             var_Set( p_demux, "rtsp-http", val );
 628             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 629             p_sys->rtsp = NULL;
 630             goto createnew;
 631         }
 632         else
 633         {
 634             msg_Dbg( p_demux, "connection timeout" );
 635             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 636             p_sys->rtsp = NULL;
 637         }
 638         i_ret = VLC_EGENERIC;
 639     }
 640
 641     /* malloc-ated copy */
 642     free( psz_url );
 643     free( psz_user );
 644     free( psz_pwd );
 645
 646     free( p_sys->p_sdp );
 647     p_sys->p_sdp = NULL;
 648     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 649     delete[] p_sdp;
 650
 651     return i_ret;
 652 }
 653
 654 /*****************************************************************************
 655  * SessionsSetup: prepares the subsessions and does the SETUP
 656  *****************************************************************************/
 657 static int SessionsSetup( demux_t *p_demux )
 658 {
 659     demux_sys_t             *p_sys  = p_demux->p_sys;
 660     MediaSubsessionIterator *iter   = NULL;
 661     MediaSubsession         *sub    = NULL;
 662
 663     bool           b_rtsp_tcp = false;
 664     int            i_client_port;
 665     int            i_return = VLC_SUCCESS;
 666     unsigned int   i_buffer = 0;
 667     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 668
 669     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 670                     var_GetBool( p_demux, "rtsp-http" );
 671     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 672
 673     /* Create the session from the SDP */
 674     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 675     {
 676         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 677             p_sys->env->getResultMsg() );
 678         return VLC_EGENERIC;
 679     }
 680
 681     /* Initialise each media subsession */
 682     iter = new MediaSubsessionIterator( *p_sys->ms );
 683     while( ( sub = iter->next() ) != NULL )
 684     {
 685         Boolean bInit;
 686         live_track_t *tk;
 687
 688         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 689         {
 690             delete iter;
 691             return VLC_EGENERIC;
 692         }
 693
 694         /* Value taken from mplayer */
 695         if( !strcmp( sub->mediumName(), "audio" ) )
 696             i_buffer = 100000;
 697         else if( !strcmp( sub->mediumName(), "video" ) )
 698             i_buffer = 2000000;
 699         else continue;
 700
 701         if( i_client_port != -1 )
 702         {
 703             sub->setClientPortNum( i_client_port );
 704             i_client_port += 2;
 705         }
 706
 707         if( strcasestr( sub->codecName(), "REAL" ) )
 708         {
 709             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 710             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 711             continue;
 712         }
 713
 714         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 715             bInit = sub->initiate( 4 ); /* Constant ? */
 716         else
 717             bInit = sub->initiate();
 718
 719         if( !bInit )
 720         {
 721             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 722                       sub->mediumName(), sub->codecName(),
 723                       p_sys->env->getResultMsg() );
 724         }
 725         else
 726         {
 727             if( sub->rtpSource() != NULL )
 728             {
 729                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 730
 731                 /* Increase the buffer size */
 732                 if( i_buffer > 0 )
 733                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 734
 735                 /* Increase the RTP reorder timebuffer just a bit */
 736                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 737             }
 738             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 739                      sub->codecName() );
 740
 741             /* Issue the SETUP */
 742             if( p_sys->rtsp )
 743             {
 744                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 745                                            b_rtsp_tcp ? True : False,
 746                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 747                 {
 748                     /* if we get an unsupported transport error, toggle TCP use and try again */
 749                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 750                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 751                                            b_rtsp_tcp ? False : True,
 752                                            False ) )
 753                     {
 754                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 755                                  sub->codecName(), p_sys->env->getResultMsg() );
 756                         continue;
 757                     }
 758                 }
 759             }
 760
 761             /* Check if we will receive data from this subsession for this track */
 762             if( sub->readSource() == NULL ) continue;
 763             if( !p_sys->b_multicast )
 764             {
 765                 /* Check, because we need diff. rollover behaviour for multicast */
 766                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 767             }
 768
 769             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 770             if( !tk )
 771             {
 772                 delete iter;
 773                 return VLC_ENOMEM;
 774             }
 775             tk->p_demux     = p_demux;
 776             tk->sub         = sub;
 777             tk->p_es        = NULL;
 778             tk->b_quicktime = false;
 779             tk->b_asf       = false;
 780             tk->b_muxed     = false;
 781             tk->p_out_muxed = NULL;
 782             tk->waiting     = 0;
 783             tk->b_rtcp_sync = false;
 784             tk->i_pts       = 0;
 785             tk->i_npt       = 0.;
 786             tk->i_buffer    = 65536;
 787             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 788             if( !tk->p_buffer )
 789             {
 790                 free( tk );
 791                 delete iter;
 792                 return VLC_ENOMEM;
 793             }
 794
 795             /* Value taken from mplayer */
 796             if( !strcmp( sub->mediumName(), "audio" ) )
 797             {
 798                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 799                 tk->fmt.audio.i_channels = sub->numChannels();
 800                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 801
 802                 if( !strcmp( sub->codecName(), "MPA" ) ||
 803                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 804                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 805                 {
 806                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 807                     tk->fmt.audio.i_rate = 0;
 808                 }
 809                 else if( !strcmp( sub->codecName(), "AC3" ) )
 810                 {
 811                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 812                     tk->fmt.audio.i_rate = 0;
 813                 }
 814                 else if( !strcmp( sub->codecName(), "L16" ) )
 815                 {
 816                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 817                     tk->fmt.audio.i_bitspersample = 16;
 818                 }
 819                 else if( !strcmp( sub->codecName(), "L8" ) )
 820                 {
 821                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 822                     tk->fmt.audio.i_bitspersample = 8;
 823                 }
 824                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 825                 {
 826                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 827                 }
 828                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 829                 {
 830                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 831                 }
 832                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 833                 {
 834                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 835                     tk->fmt.audio.i_rate = 8000;
 836                     tk->fmt.audio.i_channels = 1;
 837                     if( !strcmp( sub->codecName()+5, "40" ) )
 838                         tk->fmt.i_bitrate = 40000;
 839                     else if( !strcmp( sub->codecName()+5, "32" ) )
 840                         tk->fmt.i_bitrate = 32000;
 841                     else if( !strcmp( sub->codecName()+5, "24" ) )
 842                         tk->fmt.i_bitrate = 24000;
 843                     else if( !strcmp( sub->codecName()+5, "16" ) )
 844                         tk->fmt.i_bitrate = 16000;
 845                 }
 846                 else if( !strcmp( sub->codecName(), "AMR" ) )
 847                 {
 848                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 849                 }
 850                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 851                 {
 852                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 853                 }
 854                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 855                 {
 856                     unsigned int i_extra;
 857                     uint8_t      *p_extra;
 858
 859                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 860
 861                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 862                                                              i_extra ) ) )
 863                     {
 864                         tk->fmt.i_extra = i_extra;
 865                         tk->fmt.p_extra = malloc( i_extra );
 866                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 867                         delete[] p_extra;
 868                     }
 869                     /* Because the "faad" decoder does not handle the LATM data length field
 870                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 871                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 872                 }
 873                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 874                 {
 875                     unsigned int i_extra;
 876                     uint8_t      *p_extra;
 877
 878                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 879
 880                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 881                                                            i_extra ) ) )
 882                     {
 883                         tk->fmt.i_extra = i_extra;
 884                         tk->fmt.p_extra = malloc( i_extra );
 885                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 886                         delete[] p_extra;
 887                     }
 888                 }
 889                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 890                 {
 891                     tk->b_asf = true;
 892                     if( p_sys->p_out_asf == NULL )
 893                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 894                                                             p_demux->out );
 895                 }
 896                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 897                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 898                 {
 899                     tk->b_quicktime = true;
 900                 }
 901                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 902                 {
 903                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 904                     if ( sub->rtpTimestampFrequency() )
 905                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 906                     else
 907                     {
 908                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 909                         tk->fmt.audio.i_rate = 8000;
 910                     }
 911                 }
 912             }
 913             else if( !strcmp( sub->mediumName(), "video" ) )
 914             {
 915                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 916                 if( !strcmp( sub->codecName(), "MPV" ) )
 917                 {
 918                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 919                 }
 920                 else if( !strcmp( sub->codecName(), "H263" ) ||
 921                          !strcmp( sub->codecName(), "H263-1998" ) ||
 922                          !strcmp( sub->codecName(), "H263-2000" ) )
 923                 {
 924                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 925                 }
 926                 else if( !strcmp( sub->codecName(), "H261" ) )
 927                 {
 928                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 929                 }
 930                 else if( !strcmp( sub->codecName(), "H264" ) )
 931                 {
 932                     unsigned int i_extra = 0;
 933                     uint8_t      *p_extra = NULL;
 934
 935                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 936                     tk->fmt.b_packetized = false;
 937
 938                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 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
 945                         delete[] p_extra;
 946                     }
 947                 }
 948                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 949                 {
 950                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 951                 }
 952                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 953                 {
 954                     unsigned int i_extra;
 955                     uint8_t      *p_extra;
 956
 957                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 958
 959                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 960                                                            i_extra ) ) )
 961                     {
 962                         tk->fmt.i_extra = i_extra;
 963                         tk->fmt.p_extra = malloc( i_extra );
 964                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 965                         delete[] p_extra;
 966                     }
 967                 }
 968                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 969                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 970                          !strcmp( sub->codecName(), "X-QDM" ) ||
 971                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 972                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 973                 {
 974                     tk->b_quicktime = true;
 975                 }
 976                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 977                 {
 978                     tk->b_muxed = true;
 979                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 980                 }
 981                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 982                          !strcmp( sub->codecName(), "MP1S" ) )
 983                 {
 984                     tk->b_muxed = true;
 985                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 986                                                        p_demux->out );
 987                 }
 988                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 989                 {
 990                     tk->b_asf = true;
 991                     if( p_sys->p_out_asf == NULL )
 992                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 993                                                             p_demux->out );;
 994                 }
 995             }
 996
 997             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 998             {
 999                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1000             }
1001
1002             if( sub->rtcpInstance() != NULL )
1003             {
1004                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1005             }
1006
1007             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1008             {
1009                 /* Append */
1010                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1011                 p_sys->track[p_sys->i_track++] = tk;
1012             }
1013             else
1014             {
1015                 /* BUG ??? */
1016                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1017                 es_format_Clean( &tk->fmt );
1018                 free( tk );
1019             }
1020         }
1021     }
1022     delete iter;
1023     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1024
1025     /* Retrieve the starttime if possible */
1026     p_sys->i_npt_start = p_sys->ms->playStartTime();
1027
1028     /* Retrieve the duration if possible */
1029     p_sys->i_npt_length = p_sys->ms->playEndTime();
1030
1031     /* */
1032     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1033
1034     /* */
1035     p_sys->b_no_data = true;
1036     p_sys->i_no_data_ti = 0;
1037
1038     return i_return;
1039 }
1040
1041 /*****************************************************************************
1042  * Play: starts the actual playback of the stream
1043  *****************************************************************************/
1044 static int Play( demux_t *p_demux )
1045 {
1046     demux_sys_t *p_sys = p_demux->p_sys;
1047
1048     if( p_sys->rtsp )
1049     {
1050         /* The PLAY */
1051         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1052         {
1053             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1054             return VLC_EGENERIC;
1055         }
1056
1057         /* Retrieve the timeout value and set up a timeout prevention thread */
1058         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1059         if( p_sys->i_timeout <= 0 )
1060             p_sys->i_timeout = 60; /* default value from RFC2326 */
1061
1062         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1063         if( !p_sys->p_timeout && p_sys->b_get_param )
1064         {
1065             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1066             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1067             if( p_sys->p_timeout )
1068             {
1069                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1070                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1071                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1072                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1073                 {
1074                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1075                     free( p_sys->p_timeout );
1076                     p_sys->p_timeout = NULL;
1077                 }
1078                 else
1079                     msg_Dbg( p_demux, "spawned timeout thread" );
1080             }
1081             else
1082                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1083         }
1084     }
1085     p_sys->i_pcr = 0;
1086
1087     /* Retrieve the starttime if possible */
1088     p_sys->i_npt_start = p_sys->ms->playStartTime();
1089     p_sys->i_npt_length = p_sys->ms->playEndTime();
1090
1091     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1092     return VLC_SUCCESS;
1093 }
1094
1095
1096 /*****************************************************************************
1097  * Demux:
1098  *****************************************************************************/
1099 static int Demux( demux_t *p_demux )
1100 {
1101     demux_sys_t    *p_sys = p_demux->p_sys;
1102     TaskToken      task;
1103
1104     bool            b_send_pcr = true;
1105     int64_t         i_pcr = 0;
1106     int             i;
1107
1108     /* Check if we need to send the server a Keep-A-Live signal */
1109     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1110     {
1111         char *psz_bye = NULL;
1112         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1113         p_sys->b_timeout_call = false;
1114     }
1115
1116     for( i = 0; i < p_sys->i_track; i++ )
1117     {
1118         live_track_t *tk = p_sys->track[i];
1119
1120         if( tk->b_asf || tk->b_muxed )
1121             b_send_pcr = false;
1122 #if 0
1123         if( i_pcr == 0 )
1124         {
1125             i_pcr = tk->i_pts;
1126         }
1127         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1128         {
1129             i_pcr = tk->i_pts ;
1130         }
1131 #endif
1132     }
1133     if( p_sys->i_pcr > 0 )
1134     {
1135         if( b_send_pcr )
1136             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1137     }
1138
1139     /* First warn we want to read data */
1140     p_sys->event = 0;
1141     for( i = 0; i < p_sys->i_track; i++ )
1142     {
1143         live_track_t *tk = p_sys->track[i];
1144
1145         if( tk->waiting == 0 )
1146         {
1147             tk->waiting = 1;
1148             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1149                                           StreamRead, tk, StreamClose, tk );
1150         }
1151     }
1152     /* Create a task that will be called if we wait more than 300ms */
1153     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1154
1155     /* Do the read */
1156     p_sys->scheduler->doEventLoop( &p_sys->event );
1157
1158     /* remove the task */
1159     p_sys->scheduler->unscheduleDelayedTask( task );
1160
1161     /* Check for gap in pts value */
1162     for( i = 0; i < p_sys->i_track; i++ )
1163     {
1164         live_track_t *tk = p_sys->track[i];
1165
1166         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1167             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1168         {
1169             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1170
1171             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1172             tk->b_rtcp_sync = true;
1173             /* reset PCR */
1174             tk->i_pts = 0;
1175             tk->i_npt = 0.;
1176             p_sys->i_pcr = 0;
1177             p_sys->i_npt = 0.;
1178             i_pcr = 0;
1179         }
1180     }
1181
1182     if( p_sys->b_multicast && p_sys->b_no_data &&
1183         ( p_sys->i_no_data_ti > 120 ) )
1184     {
1185         /* FIXME Make this configurable
1186         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1187         return 0;
1188         */
1189     }
1190     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1191              ( p_sys->i_no_data_ti > 34 ) )
1192     {
1193         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1194                                 var_GetBool( p_demux, "rtsp-http" );
1195
1196         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1197         {
1198             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1199             if( RollOverTcp( p_demux ) )
1200             {
1201                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1202                 return 0;
1203             }
1204             return 1;
1205         }
1206         msg_Err( p_demux, "no data received in 10s, aborting" );
1207         return 0;
1208     }
1209     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1210     {
1211         /* EOF ? */
1212         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1213         return 0;
1214     }
1215     return p_demux->b_error ? 0 : 1;
1216 }
1217
1218 /*****************************************************************************
1219  * Control:
1220  *****************************************************************************/
1221 static int Control( demux_t *p_demux, int i_query, va_list args )
1222 {
1223     demux_sys_t *p_sys = p_demux->p_sys;
1224     int64_t *pi64, i64;
1225     double  *pf, f;
1226     bool *pb, *pb2, b_bool;
1227     int *pi_int;
1228
1229     switch( i_query )
1230     {
1231         case DEMUX_GET_TIME:
1232             pi64 = (int64_t*)va_arg( args, int64_t * );
1233             if( p_sys->i_npt > 0 )
1234             {
1235                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1236                 return VLC_SUCCESS;
1237             }
1238             return VLC_EGENERIC;
1239
1240         case DEMUX_GET_LENGTH:
1241             pi64 = (int64_t*)va_arg( args, int64_t * );
1242             if( p_sys->i_npt_length > 0 )
1243             {
1244                 *pi64 = (int64_t)((double)p_sys->i_npt_length * 1000000.0);
1245                 return VLC_SUCCESS;
1246             }
1247             return VLC_EGENERIC;
1248
1249         case DEMUX_GET_POSITION:
1250             pf = (double*)va_arg( args, double* );
1251             if( (p_sys->i_npt_length > 0) && (p_sys->i_npt > 0) )
1252             {
1253                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1254                 return VLC_SUCCESS;
1255             }
1256             return VLC_EGENERIC;
1257
1258         case DEMUX_SET_POSITION:
1259         case DEMUX_SET_TIME:
1260             if( p_sys->rtsp && (p_sys->i_npt_length > 0) )
1261             {
1262                 int i;
1263                 float time;
1264
1265                 if( (i_query == DEMUX_SET_TIME) && (p_sys->i_npt > 0) )
1266                 {
1267                     i64 = (int64_t)va_arg( args, int64_t );
1268                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1269                 }
1270                 else if( i_query == DEMUX_SET_TIME )
1271                     return VLC_EGENERIC;
1272                 else
1273                 {
1274                     f = (double)va_arg( args, double );
1275                     time = f * (double)p_sys->i_npt_length;   /* in second */
1276                 }
1277
1278                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1279                 {
1280                     msg_Err( p_demux, "PLAY failed %s",
1281                         p_sys->env->getResultMsg() );
1282                     return VLC_EGENERIC;
1283                 }
1284                 p_sys->i_pcr = 0;
1285
1286                 /* Retrieve RTP-Info values */
1287                 for( i = 0; i < p_sys->i_track; i++ )
1288                 {
1289                     p_sys->track[i]->b_rtcp_sync = false;
1290                     p_sys->track[i]->i_pts = 0;
1291                 }
1292
1293                 /* Retrieve the starttime if possible */
1294                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1295
1296                 /* Retrieve the duration if possible */
1297                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1298
1299                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1300                 return VLC_SUCCESS;
1301             }
1302             return VLC_EGENERIC;
1303
1304         /* Special for access_demux */
1305         case DEMUX_CAN_PAUSE:
1306         case DEMUX_CAN_SEEK:
1307             pb = (bool*)va_arg( args, bool * );
1308             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1309                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1310                 *pb = true;
1311             else
1312                 *pb = false;
1313             return VLC_SUCCESS;
1314
1315         case DEMUX_CAN_CONTROL_PACE:
1316             pb = (bool*)va_arg( args, bool * );
1317
1318 #if 1       /* Disable for now until we have a clock synchro algo
1319              * which works with something else than MPEG over UDP */
1320             *pb = false;
1321 #else
1322             *pb = true;
1323 #endif
1324             return VLC_SUCCESS;
1325
1326         case DEMUX_CAN_CONTROL_RATE:
1327             pb = (bool*)va_arg( args, bool * );
1328             pb2 = (bool*)va_arg( args, bool * );
1329
1330             *pb = (p_sys->rtsp != NULL) &&
1331                     (p_sys->i_npt_length > 0) &&
1332                     !var_GetBool( p_demux, "rtsp-kasenna" );
1333             *pb2 = false;
1334             return VLC_SUCCESS;
1335
1336         case DEMUX_SET_RATE:
1337         {
1338             double f_scale, f_old_scale;
1339
1340             if( !p_sys->rtsp || (p_sys->i_npt_length <= 0) ||
1341                 var_GetBool( p_demux, "rtsp-kasenna" ) )
1342                 return VLC_EGENERIC;
1343
1344             /* According to RFC 2326 p56 chapter 12.35 a RTSP server that
1345              * supports Scale should:
1346              *
1347              * "The server should try to approximate the viewing rate, but may
1348              *  restrict the range of scale values that it supports. The response
1349              *  MUST contain the actual scale value chosen by the server."
1350              *
1351              * Scale = 1 indicates normal play
1352              * Scale > 1 indicates fast forward
1353              * Scale < 1 && Scale > 0 indicates slow motion
1354              * Scale < 0 value indicates rewind
1355              */
1356
1357             pi_int = (int*)va_arg( args, int * );
1358             f_scale = (double)INPUT_RATE_DEFAULT / (*pi_int);
1359             f_old_scale = p_sys->ms->scale();
1360
1361             /* Passing -1 for the start and end time will mean liveMedia won't
1362              * create a Range: section for the RTSP message. The server should
1363              * pick up from the current position */
1364             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1365             {
1366                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1367                         p_sys->env->getResultMsg() );
1368                 return VLC_EGENERIC;
1369             }
1370
1371             if( p_sys->ms->scale() == f_old_scale )
1372             {
1373                 msg_Err( p_demux, "no scale change using old Scale %0.2f",
1374                           p_sys->ms->scale() );
1375                 return VLC_EGENERIC;
1376             }
1377
1378             /* ReSync the stream */
1379             p_sys->i_npt_start = 0;
1380             p_sys->i_pcr = 0;
1381             p_sys->i_npt = 0.0;
1382
1383             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() );
1384             msg_Dbg( p_demux, "PLAY with new Scale %0.2f (%d)", p_sys->ms->scale(), (*pi_int) );
1385             return VLC_SUCCESS;
1386         }
1387
1388         case DEMUX_SET_PAUSE_STATE:
1389         {
1390             int i;
1391
1392             b_bool = (bool)va_arg( args, int );
1393             if( p_sys->rtsp == NULL )
1394                 return VLC_EGENERIC;
1395
1396             /* FIXME */
1397             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1398                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1399                        -1 ) ) )
1400             {
1401                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1402                     return VLC_EGENERIC;
1403             }
1404
1405             /* When we Pause, we'll need the TimeoutPrevention thread to
1406              * handle sending the "Keep Alive" message to the server.
1407              * Unfortunately Live555 isn't thread safe and so can't
1408              * do this normally while the main Demux thread is handling
1409              * a live stream. We end up with the Timeout thread blocking
1410              * waiting for a response from the server. So when we PAUSE
1411              * we set a flag that the TimeoutPrevention function will check
1412              * and if it's set, it will trigger the GET_PARAMETER message */
1413             if( b_bool && p_sys->p_timeout != NULL )
1414                 p_sys->p_timeout->b_handle_keep_alive = true;
1415             else if( !b_bool && p_sys->p_timeout != NULL )
1416                 p_sys->p_timeout->b_handle_keep_alive = false;
1417
1418             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1419             {
1420                 live_track_t *tk = p_sys->track[i];
1421                 tk->b_rtcp_sync = false;
1422                 tk->i_pts = 0;
1423                 p_sys->i_pcr = 0;
1424                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1425             }
1426
1427             /* Retrieve the starttime if possible */
1428             p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1429
1430             /* Retrieve the duration if possible */
1431             p_sys->i_npt_length = p_sys->ms->playEndTime();
1432
1433             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1434             return VLC_SUCCESS;
1435         }
1436         case DEMUX_GET_TITLE_INFO:
1437         case DEMUX_SET_TITLE:
1438         case DEMUX_SET_SEEKPOINT:
1439             return VLC_EGENERIC;
1440
1441         case DEMUX_GET_PTS_DELAY:
1442             pi64 = (int64_t*)va_arg( args, int64_t * );
1443             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1444             return VLC_SUCCESS;
1445
1446         default:
1447             return VLC_EGENERIC;
1448     }
1449 }
1450
1451 /*****************************************************************************
1452  * RollOverTcp: reopen the rtsp into TCP mode
1453  * XXX: ugly, a lot of code are duplicated from Open()
1454  * This should REALLY be fixed
1455  *****************************************************************************/
1456 static int RollOverTcp( demux_t *p_demux )
1457 {
1458     demux_sys_t *p_sys = p_demux->p_sys;
1459     int i, i_return;
1460
1461     var_SetBool( p_demux, "rtsp-tcp", true );
1462
1463     /* We close the old RTSP session */
1464     for( i = 0; i < p_sys->i_track; i++ )
1465     {
1466         live_track_t *tk = p_sys->track[i];
1467
1468         if( tk->b_muxed ) stream_Delete( tk->p_out_muxed );
1469         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1470         es_format_Clean( &tk->fmt );
1471         free( tk->p_buffer );
1472         free( tk );
1473     }
1474     if( p_sys->i_track ) free( p_sys->track );
1475     if( p_sys->p_out_asf ) stream_Delete( p_sys->p_out_asf );
1476
1477     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1478     Medium::close( p_sys->ms );
1479     RTSPClient::close( p_sys->rtsp );
1480
1481     p_sys->ms = NULL;
1482     p_sys->rtsp = NULL;
1483     p_sys->track = NULL;
1484     p_sys->i_track = 0;
1485
1486     /* Reopen rtsp client */
1487     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1488     {
1489         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1490                  p_sys->psz_path );
1491         goto error;
1492     }
1493
1494     if( p_sys->p_sdp == NULL )
1495     {
1496         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1497         goto error;
1498     }
1499
1500     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1501     {
1502         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1503         goto error;
1504     }
1505
1506     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1507         goto error;
1508
1509     return VLC_SUCCESS;
1510
1511 error:
1512     return VLC_EGENERIC;
1513 }
1514
1515
1516 /*****************************************************************************
1517  *
1518  *****************************************************************************/
1519 static void StreamRead( void *p_private, unsigned int i_size,
1520                         unsigned int i_truncated_bytes, struct timeval pts,
1521                         unsigned int duration )
1522 {
1523     live_track_t   *tk = (live_track_t*)p_private;
1524     demux_t        *p_demux = tk->p_demux;
1525     demux_sys_t    *p_sys = p_demux->p_sys;
1526     block_t        *p_block;
1527
1528     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1529
1530     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1531         (int64_t)pts.tv_usec;
1532
1533     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1534     i_pts &= INT64_C(0x00ffffffffffffff);
1535
1536     /* Retrieve NPT for this pts */
1537     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1538
1539     if( tk->b_quicktime && tk->p_es == NULL )
1540     {
1541         QuickTimeGenericRTPSource *qtRTPSource =
1542             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1543         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1544         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1545
1546         if( tk->fmt.i_cat == VIDEO_ES ) {
1547             if( qtState.sdAtomSize < 16 + 32 )
1548             {
1549                 /* invalid */
1550                 p_sys->event = 0xff;
1551                 tk->waiting = 0;
1552                 return;
1553             }
1554             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1555             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1556             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1557
1558             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1559             {
1560                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1561                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1562                                   + qtRTPSource->qtState.sdAtomSize;
1563                 while (pos+8 < endpos) {
1564                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1565                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1566                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1567                         atomLength > 8 &&
1568                         atomLength <= INT_MAX )
1569                     {
1570                         tk->fmt.i_extra = atomLength-8;
1571                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1572                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1573                         break;
1574                     }
1575                     pos += atomLength;
1576                 }
1577             }
1578             else
1579             {
1580                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1581                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1582                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1583             }
1584         }
1585         else {
1586             if( qtState.sdAtomSize < 4 )
1587             {
1588                 /* invalid */
1589                 p_sys->event = 0xff;
1590                 tk->waiting = 0;
1591                 return;
1592             }
1593             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1594         }
1595         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1596     }
1597
1598 #if 0
1599     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1600              i_size,
1601              pts.tv_sec * 1000000LL + pts.tv_usec );
1602 #endif
1603
1604     /* grow buffer if it looks like buffer is too small, but don't eat
1605      * up all the memory on strange streams */
1606     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1607     {
1608         void *p_tmp;
1609         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1610         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1611         tk->i_buffer *= 2;
1612         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1613         if( p_tmp == NULL )
1614         {
1615             msg_Warn( p_demux, "realloc failed" );
1616         }
1617         else
1618         {
1619             tk->p_buffer = (uint8_t*)p_tmp;
1620         }
1621     }
1622     if( i_size > tk->i_buffer )
1623     {
1624         msg_Warn( p_demux, "buffer overflow" );
1625     }
1626     /* FIXME could i_size be > buffer size ? */
1627     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1628         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1629     {
1630         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1631
1632         p_block = block_New( p_demux, i_size + 1 );
1633         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1634         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1635     }
1636     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1637     {
1638         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1639         uint32_t header = h261Source->lastSpecialHeader();
1640         p_block = block_New( p_demux, i_size + 4 );
1641         memcpy( p_block->p_buffer, &header, 4 );
1642         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1643
1644         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1645             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1646     }
1647     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1648     {
1649         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1650             msg_Warn( p_demux, "unsupported NAL type for H264" );
1651
1652         /* Normal NAL type */
1653         p_block = block_New( p_demux, i_size + 4 );
1654         p_block->p_buffer[0] = 0x00;
1655         p_block->p_buffer[1] = 0x00;
1656         p_block->p_buffer[2] = 0x00;
1657         p_block->p_buffer[3] = 0x01;
1658         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1659     }
1660     else if( tk->b_asf )
1661     {
1662         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1663         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1664
1665         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1666     }
1667     else
1668     {
1669         p_block = block_New( p_demux, i_size );
1670         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1671     }
1672
1673     if( p_sys->i_pcr < i_pts )
1674     {
1675         p_sys->i_pcr = i_pts;
1676     }
1677
1678     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1679     {
1680         p_block->i_pts = i_pts;
1681     }
1682
1683     /* Update our global npt value */
1684     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1685         p_sys->i_npt = tk->i_npt;
1686
1687     if( !tk->b_muxed )
1688     {
1689         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1690         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1691     }
1692
1693     if( tk->b_muxed )
1694     {
1695         stream_DemuxSend( tk->p_out_muxed, p_block );
1696     }
1697     else if( tk->b_asf )
1698     {
1699         stream_DemuxSend( p_sys->p_out_asf, p_block );
1700     }
1701     else
1702     {
1703         es_out_Send( p_demux->out, tk->p_es, p_block );
1704     }
1705
1706     /* warn that's ok */
1707     p_sys->event = 0xff;
1708
1709     /* we have read data */
1710     tk->waiting = 0;
1711     p_demux->p_sys->b_no_data = false;
1712     p_demux->p_sys->i_no_data_ti = 0;
1713
1714     if( i_pts > 0 && !tk->b_muxed )
1715     {
1716         tk->i_pts = i_pts;
1717     }
1718 }
1719
1720 /*****************************************************************************
1721  *
1722  *****************************************************************************/
1723 static void StreamClose( void *p_private )
1724 {
1725     live_track_t   *tk = (live_track_t*)p_private;
1726     demux_t        *p_demux = tk->p_demux;
1727     demux_sys_t    *p_sys = p_demux->p_sys;
1728
1729     msg_Dbg( p_demux, "StreamClose" );
1730
1731     p_sys->event = 0xff;
1732     p_demux->b_error = true;
1733 }
1734
1735
1736 /*****************************************************************************
1737  *
1738  *****************************************************************************/
1739 static void TaskInterrupt( void *p_private )
1740 {
1741     demux_t *p_demux = (demux_t*)p_private;
1742
1743     p_demux->p_sys->i_no_data_ti++;
1744
1745     /* Avoid lock */
1746     p_demux->p_sys->event = 0xff;
1747 }
1748
1749 /*****************************************************************************
1750  *
1751  *****************************************************************************/
1752 static void* TimeoutPrevention( void *p_data )
1753 {
1754     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1755
1756     for( ;; )
1757     {
1758         /* Voodoo (= no) thread safety here! *Ahem* */
1759         if( p_timeout->b_handle_keep_alive )
1760         {
1761             char *psz_bye = NULL;
1762             int canc = vlc_savecancel ();
1763
1764             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1765             vlc_restorecancel (canc);
1766         }
1767         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1768
1769         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1770     }
1771     assert(0); /* dead code */
1772 }
1773
1774 /*****************************************************************************
1775  *
1776  *****************************************************************************/
1777 static int b64_decode( char *dest, char *src );
1778
1779 static int ParseASF( demux_t *p_demux )
1780 {
1781     demux_sys_t    *p_sys = p_demux->p_sys;
1782
1783     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1784     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1785     char *psz_end;
1786     block_t *p_header;
1787
1788     /* Parse the asf header */
1789     if( psz_asf == NULL )
1790         return VLC_EGENERIC;
1791
1792     psz_asf += strlen( psz_marker );
1793     psz_asf = strdup( psz_asf );    /* Duplicate it */
1794     psz_end = strchr( psz_asf, '\n' );
1795
1796     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1797         *psz_end-- = '\0';
1798
1799     if( psz_asf >= psz_end )
1800     {
1801         free( psz_asf );
1802         return VLC_EGENERIC;
1803     }
1804
1805     /* Always smaller */
1806     p_header = block_New( p_demux, psz_end - psz_asf );
1807     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1808     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1809     if( p_header->i_buffer <= 0 )
1810     {
1811         free( psz_asf );
1812         return VLC_EGENERIC;
1813     }
1814
1815     /* Parse it to get packet size */
1816     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1817
1818     /* Send it to demuxer */
1819     stream_DemuxSend( p_sys->p_out_asf, p_header );
1820
1821     free( psz_asf );
1822     return VLC_SUCCESS;
1823 }
1824
1825
1826 static unsigned char* parseH264ConfigStr( char const* configStr,
1827                                           unsigned int& configSize )
1828 {
1829     char *dup, *psz;
1830     int i, i_records = 1;
1831
1832     if( configSize )
1833     configSize = 0;
1834
1835     if( configStr == NULL || *configStr == '\0' )
1836         return NULL;
1837
1838     psz = dup = strdup( configStr );
1839
1840     /* Count the number of comma's */
1841     for( psz = dup; *psz != '\0'; ++psz )
1842     {
1843         if( *psz == ',')
1844         {
1845             ++i_records;
1846             *psz = '\0';
1847         }
1848     }
1849
1850     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1851     psz = dup;
1852     for( i = 0; i < i_records; i++ )
1853     {
1854         cfg[configSize++] = 0x00;
1855         cfg[configSize++] = 0x00;
1856         cfg[configSize++] = 0x00;
1857         cfg[configSize++] = 0x01;
1858
1859         configSize += b64_decode( (char*)&cfg[configSize], psz );
1860         psz += strlen(psz)+1;
1861     }
1862
1863     free( dup );
1864     return cfg;
1865 }
1866
1867 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1868 static int b64_decode( char *dest, char *src )
1869 {
1870     const char *dest_start = dest;
1871     int  i_level;
1872     int  last = 0;
1873     int  b64[256] = {
1874         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1875         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1876         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1877         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1878         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1879         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1880         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1881         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1882         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1883         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1884         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1885         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1886         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1887         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1888         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1889         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1890         };
1891
1892     for( i_level = 0; *src != '\0'; src++ )
1893     {
1894         int  c;
1895
1896         c = b64[(unsigned int)*src];
1897         if( c == -1 )
1898         {
1899             continue;
1900         }
1901
1902         switch( i_level )
1903         {
1904             case 0:
1905                 i_level++;
1906                 break;
1907             case 1:
1908                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1909                 i_level++;
1910                 break;
1911             case 2:
1912                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1913                 i_level++;
1914                 break;
1915             case 3:
1916                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1917                 i_level = 0;
1918         }
1919         last = c;
1920     }
1921
1922     *dest = '\0';
1923
1924     return dest - dest_start;
1925 }