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 #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     MediaSubsessionIterator *iter   = NULL;
 239     MediaSubsession         *sub    = NULL;
 240     int i, i_return;
 241     int i_error = VLC_EGENERIC;
 242
 243     if( p_demux->s )
 244     {
 245         /* See if it looks like a SDP
 246            v, o, s fields are mandatory and in this order */
 247         const uint8_t *p_peek;
 248         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 ) return VLC_EGENERIC;
 249
 250         if( memcmp( p_peek, "v=0\r\n", 5 ) &&
 251             memcmp( p_peek, "v=0\n", 4 ) &&
 252             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 253         {
 254             return VLC_EGENERIC;
 255         }
 256     }
 257     else
 258     {
 259         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 260     }
 261
 262     p_demux->pf_demux  = Demux;
 263     p_demux->pf_control= Control;
 264     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 265     if( !p_sys ) return VLC_ENOMEM;
 266
 267     p_sys->p_sdp = NULL;
 268     p_sys->scheduler = NULL;
 269     p_sys->env = NULL;
 270     p_sys->ms = NULL;
 271     p_sys->rtsp = NULL;
 272     p_sys->i_track = 0;
 273     p_sys->track   = NULL;
 274     p_sys->i_pcr = 0;
 275     p_sys->i_npt = 0.;
 276     p_sys->i_npt_start = 0.;
 277     p_sys->i_npt_length = 0.;
 278     p_sys->p_out_asf = NULL;
 279     p_sys->b_no_data = true;
 280     p_sys->i_no_data_ti = 0;
 281     p_sys->p_timeout = NULL;
 282     p_sys->i_timeout = 0;
 283     p_sys->b_timeout_call = false;
 284     p_sys->b_multicast = false;
 285     p_sys->b_real = false;
 286     p_sys->psz_path = strdup( p_demux->psz_path );
 287     p_sys->b_force_mcast = var_CreateGetBool( p_demux, "rtsp-mcast" );
 288     p_sys->b_get_param = false;
 289
 290     /* parse URL for rtsp://[user:[passwd]@]serverip:port/options */
 291     vlc_UrlParse( &p_sys->url, p_sys->psz_path, 0 );
 292
 293     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 294     {
 295         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 296         goto error;
 297     }
 298     if( !( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) )
 299     {
 300         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 301         goto error;
 302     }
 303
 304     if( strcasecmp( p_demux->psz_access, "sdp" ) )
 305     {
 306         char *p = p_sys->psz_path;
 307         while( (p = strchr( p, ' ' )) != NULL ) *p = '+';
 308     }
 309
 310     if( p_demux->s != NULL )
 311     {
 312         /* Gather the complete sdp file */
 313         int     i_sdp       = 0;
 314         int     i_sdp_max   = 1000;
 315         uint8_t *p_sdp      = (uint8_t*) malloc( i_sdp_max );
 316
 317         if( !p_sdp )
 318         {
 319             i_error = VLC_ENOMEM;
 320             goto error;
 321         }
 322
 323         for( ;; )
 324         {
 325             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp],
 326                                       i_sdp_max - i_sdp - 1 );
 327
 328             if( !vlc_object_alive (p_demux) || p_demux->b_error )
 329             {
 330                 free( p_sdp );
 331                 goto error;
 332             }
 333
 334             if( i_read < 0 )
 335             {
 336                 msg_Err( p_demux, "failed to read SDP" );
 337                 free( p_sdp );
 338                 goto error;
 339             }
 340
 341             i_sdp += i_read;
 342
 343             if( i_read < i_sdp_max - i_sdp - 1 )
 344             {
 345                 p_sdp[i_sdp] = '\0';
 346                 break;
 347             }
 348
 349             i_sdp_max += 1000;
 350             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 351         }
 352         p_sys->p_sdp = (char*)p_sdp;
 353     }
 354     else if( ( p_demux->s == NULL ) &&
 355              !strcasecmp( p_demux->psz_access, "sdp" ) )
 356     {
 357         /* sdp:// link from SAP */
 358         p_sys->p_sdp = strdup( p_sys->psz_path );
 359     }
 360     else if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
 361     {
 362         msg_Err( p_demux, "Failed to connect with rtsp://%s", p_sys->psz_path );
 363         goto error;
 364     }
 365
 366     if( p_sys->p_sdp == NULL )
 367     {
 368         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
 369         i_error = VLC_ENOMEM;
 370         goto error;
 371     }
 372
 373     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
 374     {
 375         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
 376         goto error;
 377     }
 378
 379     if( p_sys->b_real ) goto error;
 380
 381     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
 382         goto error;
 383
 384     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 385     {
 386         msg_Err( p_demux, "cannot find a usable asf header" );
 387         /* TODO Clean tracks */
 388         goto error;
 389     }
 390
 391     if( p_sys->i_track <= 0 )
 392         goto error;
 393
 394     return VLC_SUCCESS;
 395
 396 error:
 397     for( i = 0; i < p_sys->i_track; i++ )
 398     {
 399         live_track_t *tk = p_sys->track[i];
 400
 401         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 402         es_format_Clean( &tk->fmt );
 403         free( tk->p_buffer );
 404         free( tk );
 405     }
 406
 407     if( p_sys->i_track ) free( p_sys->track );
 408     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 409     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 410     if( p_sys->p_timeout )
 411     {
 412         vlc_cancel( p_sys->p_timeout->handle );
 413         vlc_join( p_sys->p_timeout->handle, NULL );
 414         free( p_sys->p_timeout );
 415     }
 416     if( p_sys->ms ) Medium::close( p_sys->ms );
 417     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 418     if( p_sys->env ) p_sys->env->reclaim();
 419     delete p_sys->scheduler;
 420     free( p_sys->p_sdp );
 421     free( p_sys->psz_path );
 422
 423     vlc_UrlClean( &p_sys->url );
 424
 425     free( p_sys );
 426     return i_error;
 427 }
 428
 429 /*****************************************************************************
 430  * DemuxClose:
 431  *****************************************************************************/
 432 static void Close( vlc_object_t *p_this )
 433 {
 434     demux_t *p_demux = (demux_t*)p_this;
 435     demux_sys_t *p_sys = p_demux->p_sys;
 436     int i;
 437
 438     for( i = 0; i < p_sys->i_track; i++ )
 439     {
 440         live_track_t *tk = p_sys->track[i];
 441
 442         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
 443         es_format_Clean( &tk->fmt );
 444         free( tk->p_buffer );
 445         free( tk );
 446     }
 447
 448     if( p_sys->i_track ) free( p_sys->track );
 449     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
 450     if( p_sys->rtsp && p_sys->ms ) p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 451     if( p_sys->p_timeout )
 452     {
 453         vlc_cancel( p_sys->p_timeout->handle );
 454         vlc_join( p_sys->p_timeout->handle, NULL );
 455         free( p_sys->p_timeout );
 456     }
 457     if( p_sys->ms ) Medium::close( p_sys->ms );
 458     if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 459     if( p_sys->env ) p_sys->env->reclaim();
 460     delete p_sys->scheduler;
 461     free( p_sys->p_sdp );
 462     free( p_sys->psz_path );
 463
 464     vlc_UrlClean( &p_sys->url );
 465
 466     free( p_sys );
 467 }
 468
 469 /*****************************************************************************
 470  * Connect: connects to the RTSP server to setup the session DESCRIBE
 471  *****************************************************************************/
 472 static int Connect( demux_t *p_demux )
 473 {
 474     demux_sys_t *p_sys = p_demux->p_sys;
 475     Authenticator authenticator;
 476     bool b_firstpass  = true;
 477     char *psz_user    = NULL;
 478     char *psz_pwd     = NULL;
 479     char *psz_url     = NULL;
 480     char *psz_options = NULL;
 481     char *p_sdp       = NULL;
 482     int  i_http_port  = 0;
 483     int  i_ret        = VLC_SUCCESS;
 484     int timeout;
 485
 486     if( p_sys->url.i_port == 0 ) p_sys->url.i_port = 554;
 487     if( p_sys->url.psz_username || p_sys->url.psz_password )
 488     {
 489         int err;
 490         err = asprintf( &psz_url, "rtsp://%s:%d%s", p_sys->url.psz_host,
 491                         p_sys->url.i_port, p_sys->url.psz_path );
 492         if( err == -1 ) return VLC_ENOMEM;
 493
 494         psz_user = strdup( p_sys->url.psz_username );
 495         psz_pwd  = strdup( p_sys->url.psz_password );
 496     }
 497     else
 498     {
 499         int err;
 500         err = asprintf( &psz_url, "rtsp://%s", p_sys->psz_path );
 501         if( err == -1 ) return VLC_ENOMEM;
 502
 503         psz_user = var_CreateGetString( p_demux, "rtsp-user" );
 504         psz_pwd  = var_CreateGetString( p_demux, "rtsp-pwd" );
 505     }
 506
 507 createnew:
 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     timeout = var_CreateGetInteger(p_demux, "ipv4-timeout");
 548     timeout /= 1000;
 549
 550 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 551     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 552                                                &authenticator, timeout );
 553 #else
 554     psz_options = p_sys->rtsp->sendOptionsCmd( psz_url, psz_user, psz_pwd,
 555                                                &authenticator );
 556 #endif
 557     if( psz_options )
 558     {
 559         p_sys->b_get_param = strstr( psz_options, "GET_PARAMETER" ) ? true : false ;
 560 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1223337600
 561         p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 562                                           var_GetBool( p_demux, "rtsp-kasenna" ), timeout );
 563 #else
 564         p_sdp = p_sys->rtsp->describeWithPassword( psz_url, (const char*)psz_user, (const char*)psz_pwd,
 565                                           var_GetBool( p_demux, "rtsp-kasenna" ) );
 566 #endif
 567
 568     }
 569     delete [] psz_options;
 570
 571     if( p_sdp == NULL )
 572     {
 573         /* failure occurred */
 574         int i_code = 0;
 575         const char *psz_error = p_sys->env->getResultMsg();
 576
 577         if( var_GetBool( p_demux, "rtsp-http" ) )
 578             sscanf( psz_error, "%*s %*s HTTP GET %*s HTTP/%*u.%*u %3u %*s",
 579                     &i_code );
 580         else
 581         {
 582             const char *psz_tmp = strstr( psz_error, "RTSP" );
 583             if( psz_tmp )
 584                 sscanf( psz_tmp, "RTSP/%*s%3u", &i_code );
 585             else
 586                 i_code = 0;
 587         }
 588         msg_Dbg( p_demux, "DESCRIBE failed with %d: %s", i_code, psz_error );
 589
 590         if( b_firstpass )
 591         {   /* describeURL always returns an "RTSP/1.0 401 Unauthorized" the
 592              * first time. This is a workaround to avoid asking for a
 593              * user/passwd the first time the code passess here. */
 594             i_code = 0;
 595             b_firstpass = false;
 596         }
 597
 598         if( i_code == 401 )
 599         {
 600             int i_result;
 601             msg_Dbg( p_demux, "authentication failed" );
 602
 603             free( psz_user );
 604             free( psz_pwd );
 605             psz_user = psz_pwd = NULL;
 606
 607             i_result = intf_UserLoginPassword( p_demux, _("RTSP authentication"),
 608                            _("Please enter a valid login name and a password."),
 609                                                    &psz_user, &psz_pwd );
 610             if( i_result == DIALOG_OK_YES )
 611             {
 612                 msg_Dbg( p_demux, "retrying with user=%s, pwd=%s",
 613                          psz_user, psz_pwd );
 614                 goto describe;
 615             }
 616         }
 617         else if( (i_code != 0) && !var_GetBool( p_demux, "rtsp-http" ) )
 618         {
 619             /* Perhaps a firewall is being annoying. Try HTTP tunneling mode */
 620             vlc_value_t val;
 621             val.b_bool = true;
 622             msg_Dbg( p_demux, "we will now try HTTP tunneling mode" );
 623             var_Set( p_demux, "rtsp-http", val );
 624             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 625             p_sys->rtsp = NULL;
 626             goto createnew;
 627         }
 628         else
 629         {
 630             msg_Dbg( p_demux, "connection timeout" );
 631             if( p_sys->rtsp ) RTSPClient::close( p_sys->rtsp );
 632             p_sys->rtsp = NULL;
 633         }
 634         i_ret = VLC_EGENERIC;
 635     }
 636
 637     /* malloc-ated copy */
 638     free( psz_url );
 639     free( psz_user );
 640     free( psz_pwd );
 641
 642     free( p_sys->p_sdp );
 643     p_sys->p_sdp = NULL;
 644     if( p_sdp ) p_sys->p_sdp = strdup( (char*)p_sdp );
 645     delete[] p_sdp;
 646
 647     return i_ret;
 648 }
 649
 650 /*****************************************************************************
 651  * SessionsSetup: prepares the subsessions and does the SETUP
 652  *****************************************************************************/
 653 static int SessionsSetup( demux_t *p_demux )
 654 {
 655     demux_sys_t             *p_sys  = p_demux->p_sys;
 656     MediaSubsessionIterator *iter   = NULL;
 657     MediaSubsession         *sub    = NULL;
 658
 659     bool           b_rtsp_tcp = false;
 660     int            i_client_port;
 661     int            i_return = VLC_SUCCESS;
 662     unsigned int   i_buffer = 0;
 663     unsigned const thresh = 200000; /* RTP reorder threshold .2 second (default .1) */
 664
 665     b_rtsp_tcp    = var_CreateGetBool( p_demux, "rtsp-tcp" ) ||
 666                     var_GetBool( p_demux, "rtsp-http" );
 667     i_client_port = var_CreateGetInteger( p_demux, "rtp-client-port" );
 668
 669     /* Create the session from the SDP */
 670     if( !( p_sys->ms = MediaSession::createNew( *p_sys->env, p_sys->p_sdp ) ) )
 671     {
 672         msg_Err( p_demux, "Could not create the RTSP Session: %s",
 673             p_sys->env->getResultMsg() );
 674         return VLC_EGENERIC;
 675     }
 676
 677     /* Initialise each media subsession */
 678     iter = new MediaSubsessionIterator( *p_sys->ms );
 679     while( ( sub = iter->next() ) != NULL )
 680     {
 681         Boolean bInit;
 682         live_track_t *tk;
 683
 684         if( !vlc_object_alive (p_demux) || p_demux->b_error )
 685         {
 686             delete iter;
 687             return VLC_EGENERIC;
 688         }
 689
 690         /* Value taken from mplayer */
 691         if( !strcmp( sub->mediumName(), "audio" ) )
 692             i_buffer = 100000;
 693         else if( !strcmp( sub->mediumName(), "video" ) )
 694             i_buffer = 2000000;
 695         else continue;
 696
 697         if( i_client_port != -1 )
 698         {
 699             sub->setClientPortNum( i_client_port );
 700             i_client_port += 2;
 701         }
 702
 703         if( strcasestr( sub->codecName(), "REAL" ) )
 704         {
 705             msg_Info( p_demux, "real codec detected, using real-RTSP instead" );
 706             p_sys->b_real = true; /* This is a problem, we'll handle it later */
 707             continue;
 708         }
 709
 710         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 711             bInit = sub->initiate( 4 ); /* Constant ? */
 712         else
 713             bInit = sub->initiate();
 714
 715         if( !bInit )
 716         {
 717             msg_Warn( p_demux, "RTP subsession '%s/%s' failed (%s)",
 718                       sub->mediumName(), sub->codecName(),
 719                       p_sys->env->getResultMsg() );
 720         }
 721         else
 722         {
 723             if( sub->rtpSource() != NULL )
 724             {
 725                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 726
 727                 /* Increase the buffer size */
 728                 if( i_buffer > 0 )
 729                     increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 730
 731                 /* Increase the RTP reorder timebuffer just a bit */
 732                 sub->rtpSource()->setPacketReorderingThresholdTime(thresh);
 733             }
 734             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(),
 735                      sub->codecName() );
 736
 737             /* Issue the SETUP */
 738             if( p_sys->rtsp )
 739             {
 740                 if( !p_sys->rtsp->setupMediaSubsession( *sub, False,
 741                                            b_rtsp_tcp ? True : False,
 742                                            ( p_sys->b_force_mcast && !b_rtsp_tcp ) ? True : False ) )
 743                 {
 744                     /* if we get an unsupported transport error, toggle TCP use and try again */
 745                     if( !strstr(p_sys->env->getResultMsg(), "461 Unsupported Transport")
 746                      || !p_sys->rtsp->setupMediaSubsession( *sub, False,
 747                                            b_rtsp_tcp ? False : True,
 748                                            False ) )
 749                     {
 750                         msg_Err( p_demux, "SETUP of'%s/%s' failed %s", sub->mediumName(),
 751                                  sub->codecName(), p_sys->env->getResultMsg() );
 752                         continue;
 753                     }
 754                 }
 755             }
 756
 757             /* Check if we will receive data from this subsession for this track */
 758             if( sub->readSource() == NULL ) continue;
 759             if( !p_sys->b_multicast )
 760             {
 761                 /* Check, because we need diff. rollover behaviour for multicast */
 762                 p_sys->b_multicast = IsMulticastAddress( sub->connectionEndpointAddress() );
 763             }
 764
 765             tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 766             if( !tk )
 767             {
 768                 delete iter;
 769                 return VLC_ENOMEM;
 770             }
 771             tk->p_demux     = p_demux;
 772             tk->sub         = sub;
 773             tk->p_es        = NULL;
 774             tk->b_quicktime = false;
 775             tk->b_asf       = false;
 776             tk->b_muxed     = false;
 777             tk->p_out_muxed = NULL;
 778             tk->waiting     = 0;
 779             tk->b_rtcp_sync = false;
 780             tk->i_pts       = 0;
 781             tk->i_npt       = 0.;
 782             tk->i_buffer    = 65536;
 783             tk->p_buffer    = (uint8_t *)malloc( 65536 );
 784             if( !tk->p_buffer )
 785             {
 786                 delete iter;
 787                 return VLC_ENOMEM;
 788             }
 789
 790             /* Value taken from mplayer */
 791             if( !strcmp( sub->mediumName(), "audio" ) )
 792             {
 793                 es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC('u','n','d','f') );
 794                 tk->fmt.audio.i_channels = sub->numChannels();
 795                 tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 796
 797                 if( !strcmp( sub->codecName(), "MPA" ) ||
 798                     !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 799                     !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 800                 {
 801                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 802                     tk->fmt.audio.i_rate = 0;
 803                 }
 804                 else if( !strcmp( sub->codecName(), "AC3" ) )
 805                 {
 806                     tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 807                     tk->fmt.audio.i_rate = 0;
 808                 }
 809                 else if( !strcmp( sub->codecName(), "L16" ) )
 810                 {
 811                     tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 812                     tk->fmt.audio.i_bitspersample = 16;
 813                 }
 814                 else if( !strcmp( sub->codecName(), "L8" ) )
 815                 {
 816                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 817                     tk->fmt.audio.i_bitspersample = 8;
 818                 }
 819                 else if( !strcmp( sub->codecName(), "PCMU" ) )
 820                 {
 821                     tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 822                 }
 823                 else if( !strcmp( sub->codecName(), "PCMA" ) )
 824                 {
 825                     tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 826                 }
 827                 else if( !strncmp( sub->codecName(), "G726", 4 ) )
 828                 {
 829                     tk->fmt.i_codec = VLC_FOURCC( 'g', '7', '2', '6' );
 830                     tk->fmt.audio.i_rate = 8000;
 831                     tk->fmt.audio.i_channels = 1;
 832                     if( !strcmp( sub->codecName()+5, "40" ) )
 833                         tk->fmt.i_bitrate = 40000;
 834                     else if( !strcmp( sub->codecName()+5, "32" ) )
 835                         tk->fmt.i_bitrate = 32000;
 836                     else if( !strcmp( sub->codecName()+5, "24" ) )
 837                         tk->fmt.i_bitrate = 24000;
 838                     else if( !strcmp( sub->codecName()+5, "16" ) )
 839                         tk->fmt.i_bitrate = 16000;
 840                 }
 841                 else if( !strcmp( sub->codecName(), "AMR" ) )
 842                 {
 843                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'm', 'r' );
 844                 }
 845                 else if( !strcmp( sub->codecName(), "AMR-WB" ) )
 846                 {
 847                     tk->fmt.i_codec = VLC_FOURCC( 's', 'a', 'w', 'b' );
 848                 }
 849                 else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 850                 {
 851                     unsigned int i_extra;
 852                     uint8_t      *p_extra;
 853
 854                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 855
 856                     if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(),
 857                                                              i_extra ) ) )
 858                     {
 859                         tk->fmt.i_extra = i_extra;
 860                         tk->fmt.p_extra = malloc( i_extra );
 861                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 862                         delete[] p_extra;
 863                     }
 864                     /* Because the "faad" decoder does not handle the LATM data length field
 865                        at the start of each returned LATM frame, tell the RTP source to omit it. */
 866                     ((MPEG4LATMAudioRTPSource*)sub->rtpSource())->omitLATMDataLengthField();
 867                 }
 868                 else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 869                 {
 870                     unsigned int i_extra;
 871                     uint8_t      *p_extra;
 872
 873                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 874
 875                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 876                                                            i_extra ) ) )
 877                     {
 878                         tk->fmt.i_extra = i_extra;
 879                         tk->fmt.p_extra = malloc( i_extra );
 880                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 881                         delete[] p_extra;
 882                     }
 883                 }
 884                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 885                 {
 886                     tk->b_asf = true;
 887                     if( p_sys->p_out_asf == NULL )
 888                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 889                                                             p_demux->out );
 890                 }
 891                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 892                          !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 893                 {
 894                     tk->b_quicktime = true;
 895                 }
 896                 else if( !strcmp( sub->codecName(), "SPEEX" ) )
 897                 {
 898                     tk->fmt.i_codec = VLC_FOURCC( 's', 'p', 'x', 'r' );
 899                     if ( sub->rtpTimestampFrequency() )
 900                         tk->fmt.audio.i_rate = sub->rtpTimestampFrequency();
 901                     else
 902                     {
 903                         msg_Warn( p_demux,"Using 8kHz as default sample rate." );
 904                         tk->fmt.audio.i_rate = 8000;
 905                     }
 906                 }
 907             }
 908             else if( !strcmp( sub->mediumName(), "video" ) )
 909             {
 910                 es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC('u','n','d','f') );
 911                 if( !strcmp( sub->codecName(), "MPV" ) )
 912                 {
 913                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 914                 }
 915                 else if( !strcmp( sub->codecName(), "H263" ) ||
 916                          !strcmp( sub->codecName(), "H263-1998" ) ||
 917                          !strcmp( sub->codecName(), "H263-2000" ) )
 918                 {
 919                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 920                 }
 921                 else if( !strcmp( sub->codecName(), "H261" ) )
 922                 {
 923                     tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 924                 }
 925                 else if( !strcmp( sub->codecName(), "H264" ) )
 926                 {
 927                     unsigned int i_extra = 0;
 928                     uint8_t      *p_extra = NULL;
 929
 930                     tk->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '4' );
 931                     tk->fmt.b_packetized = false;
 932
 933                     if((p_extra=parseH264ConfigStr( sub->fmtp_spropparametersets(),
 934                                                     i_extra ) ) )
 935                     {
 936                         tk->fmt.i_extra = i_extra;
 937                         tk->fmt.p_extra = malloc( i_extra );
 938                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 939
 940                         delete[] p_extra;
 941                     }
 942                 }
 943                 else if( !strcmp( sub->codecName(), "JPEG" ) )
 944                 {
 945                     tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 946                 }
 947                 else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 948                 {
 949                     unsigned int i_extra;
 950                     uint8_t      *p_extra;
 951
 952                     tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 953
 954                     if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(),
 955                                                            i_extra ) ) )
 956                     {
 957                         tk->fmt.i_extra = i_extra;
 958                         tk->fmt.p_extra = malloc( i_extra );
 959                         memcpy( tk->fmt.p_extra, p_extra, i_extra );
 960                         delete[] p_extra;
 961                     }
 962                 }
 963                 else if( !strcmp( sub->codecName(), "X-QT" ) ||
 964                          !strcmp( sub->codecName(), "X-QUICKTIME" ) ||
 965                          !strcmp( sub->codecName(), "X-QDM" ) ||
 966                          !strcmp( sub->codecName(), "X-SV3V-ES" )  ||
 967                          !strcmp( sub->codecName(), "X-SORENSONVIDEO" ) )
 968                 {
 969                     tk->b_quicktime = true;
 970                 }
 971                 else if( !strcmp( sub->codecName(), "MP2T" ) )
 972                 {
 973                     tk->b_muxed = true;
 974                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 975                 }
 976                 else if( !strcmp( sub->codecName(), "MP2P" ) ||
 977                          !strcmp( sub->codecName(), "MP1S" ) )
 978                 {
 979                     tk->b_muxed = true;
 980                     tk->p_out_muxed = stream_DemuxNew( p_demux, "ps",
 981                                                        p_demux->out );
 982                 }
 983                 else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 984                 {
 985                     tk->b_asf = true;
 986                     if( p_sys->p_out_asf == NULL )
 987                         p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf",
 988                                                             p_demux->out );;
 989                 }
 990             }
 991
 992             if( !tk->b_quicktime && !tk->b_muxed && !tk->b_asf )
 993             {
 994                 tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 995             }
 996
 997             if( sub->rtcpInstance() != NULL )
 998             {
 999                 sub->rtcpInstance()->setByeHandler( StreamClose, tk );
1000             }
1001
1002             if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
1003             {
1004                 /* Append */
1005                 p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
1006                 p_sys->track[p_sys->i_track++] = tk;
1007             }
1008             else
1009             {
1010                 /* BUG ??? */
1011                 msg_Err( p_demux, "unusable RTSP track. this should not happen" );
1012                 es_format_Clean( &tk->fmt );
1013                 free( tk );
1014             }
1015         }
1016     }
1017     delete iter;
1018     if( p_sys->i_track <= 0 ) i_return = VLC_EGENERIC;
1019
1020     /* Retrieve the starttime if possible */
1021     p_sys->i_npt_start = p_sys->ms->playStartTime();
1022
1023     /* Retrieve the duration if possible */
1024     p_sys->i_npt_length = p_sys->ms->playEndTime();
1025
1026     msg_Dbg( p_demux, "setup start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1027     return i_return;
1028 }
1029
1030 /*****************************************************************************
1031  * Play: starts the actual playback of the stream
1032  *****************************************************************************/
1033 static int Play( demux_t *p_demux )
1034 {
1035     demux_sys_t *p_sys = p_demux->p_sys;
1036     int i;
1037
1038     if( p_sys->rtsp )
1039     {
1040         /* The PLAY */
1041         if( !p_sys->rtsp->playMediaSession( *p_sys->ms, p_sys->i_npt_start, -1, 1 ) )
1042         {
1043             msg_Err( p_demux, "RTSP PLAY failed %s", p_sys->env->getResultMsg() );
1044             return VLC_EGENERIC;
1045         }
1046
1047         /* Retrieve the timeout value and set up a timeout prevention thread */
1048         p_sys->i_timeout = p_sys->rtsp->sessionTimeoutParameter();
1049         if( p_sys->i_timeout <= 0 )
1050             p_sys->i_timeout = 60; /* default value from RFC2326 */
1051
1052         /* start timeout-thread only if GET_PARAMETER is supported by the server */
1053         if( !p_sys->p_timeout && p_sys->b_get_param )
1054         {
1055             msg_Dbg( p_demux, "We have a timeout of %d seconds",  p_sys->i_timeout );
1056             p_sys->p_timeout = (timeout_thread_t *)malloc( sizeof(timeout_thread_t) );
1057             if( p_sys->p_timeout )
1058             {
1059                 memset( p_sys->p_timeout, 0, sizeof(timeout_thread_t) );
1060                 p_sys->p_timeout->p_sys = p_demux->p_sys; /* lol, object recursion :D */
1061                 if( vlc_clone( &p_sys->p_timeout->handle,  TimeoutPrevention,
1062                                p_sys->p_timeout, VLC_THREAD_PRIORITY_LOW ) )
1063                 {
1064                     msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1065                     free( p_sys->p_timeout );
1066                     p_sys->p_timeout = NULL;
1067                 }
1068                 else
1069                     msg_Dbg( p_demux, "spawned timeout thread" );
1070             }
1071             else
1072                 msg_Err( p_demux, "cannot spawn liveMedia timeout thread" );
1073         }
1074     }
1075     p_sys->i_pcr = 0;
1076
1077     /* Retrieve the starttime if possible */
1078     p_sys->i_npt_start = p_sys->ms->playStartTime();
1079     p_sys->i_npt_length = p_sys->ms->playEndTime();
1080
1081     msg_Dbg( p_demux, "play start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1082     return VLC_SUCCESS;
1083 }
1084
1085
1086 /*****************************************************************************
1087  * Demux:
1088  *****************************************************************************/
1089 static int Demux( demux_t *p_demux )
1090 {
1091     demux_sys_t    *p_sys = p_demux->p_sys;
1092     TaskToken      task;
1093
1094     bool            b_send_pcr = true;
1095     int64_t         i_pcr = 0;
1096     int             i;
1097
1098     /* Check if we need to send the server a Keep-A-Live signal */
1099     if( p_sys->b_timeout_call && p_sys->rtsp && p_sys->ms )
1100     {
1101         char *psz_bye = NULL;
1102         p_sys->rtsp->getMediaSessionParameter( *p_sys->ms, NULL, psz_bye );
1103         p_sys->b_timeout_call = false;
1104     }
1105
1106     for( i = 0; i < p_sys->i_track; i++ )
1107     {
1108         live_track_t *tk = p_sys->track[i];
1109
1110         if( tk->b_asf || tk->b_muxed )
1111             b_send_pcr = false;
1112 #if 0
1113         if( i_pcr == 0 )
1114         {
1115             i_pcr = tk->i_pts;
1116         }
1117         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
1118         {
1119             i_pcr = tk->i_pts ;
1120         }
1121 #endif
1122     }
1123     if( p_sys->i_pcr > 0 )
1124     {
1125         if( b_send_pcr )
1126             es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
1127     }
1128
1129     /* First warn we want to read data */
1130     p_sys->event = 0;
1131     for( i = 0; i < p_sys->i_track; i++ )
1132     {
1133         live_track_t *tk = p_sys->track[i];
1134
1135         if( tk->waiting == 0 )
1136         {
1137             tk->waiting = 1;
1138             tk->sub->readSource()->getNextFrame( tk->p_buffer, tk->i_buffer,
1139                                           StreamRead, tk, StreamClose, tk );
1140         }
1141     }
1142     /* Create a task that will be called if we wait more than 300ms */
1143     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
1144
1145     /* Do the read */
1146     p_sys->scheduler->doEventLoop( &p_sys->event );
1147
1148     /* remove the task */
1149     p_sys->scheduler->unscheduleDelayedTask( task );
1150
1151     /* Check for gap in pts value */
1152     for( i = 0; i < p_sys->i_track; i++ )
1153     {
1154         live_track_t *tk = p_sys->track[i];
1155
1156         if( !tk->b_muxed && !tk->b_rtcp_sync &&
1157             tk->sub->rtpSource() && tk->sub->rtpSource()->hasBeenSynchronizedUsingRTCP() )
1158         {
1159             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
1160
1161             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1162             tk->b_rtcp_sync = true;
1163             /* reset PCR */
1164             tk->i_pts = 0;
1165             tk->i_npt = 0.;
1166             p_sys->i_pcr = 0;
1167             p_sys->i_npt = 0.;
1168             i_pcr = 0;
1169         }
1170     }
1171
1172     if( p_sys->b_multicast && p_sys->b_no_data &&
1173         ( p_sys->i_no_data_ti > 120 ) )
1174     {
1175         /* FIXME Make this configurable
1176         msg_Err( p_demux, "no multicast data received in 36s, aborting" );
1177         return 0;
1178         */
1179     }
1180     else if( !p_sys->b_multicast && p_sys->b_no_data &&
1181              ( p_sys->i_no_data_ti > 34 ) )
1182     {
1183         bool b_rtsp_tcp = var_GetBool( p_demux, "rtsp-tcp" ) ||
1184                                 var_GetBool( p_demux, "rtsp-http" );
1185
1186         if( !b_rtsp_tcp && p_sys->rtsp && p_sys->ms )
1187         {
1188             msg_Warn( p_demux, "no data received in 10s. Switching to TCP" );
1189             if( RollOverTcp( p_demux ) )
1190             {
1191                 msg_Err( p_demux, "TCP rollover failed, aborting" );
1192                 return 0;
1193             }
1194             return 1;
1195         }
1196         msg_Err( p_demux, "no data received in 10s, aborting" );
1197         return 0;
1198     }
1199     else if( !p_sys->b_multicast && p_sys->i_no_data_ti > 34 )
1200     {
1201         /* EOF ? */
1202         msg_Warn( p_demux, "no data received in 10s, eof ?" );
1203         return 0;
1204     }
1205     return p_demux->b_error ? 0 : 1;
1206 }
1207
1208 /*****************************************************************************
1209  * Control:
1210  *****************************************************************************/
1211 static int Control( demux_t *p_demux, int i_query, va_list args )
1212 {
1213     demux_sys_t *p_sys = p_demux->p_sys;
1214     int64_t *pi64, i64;
1215     double  *pf, f;
1216     bool *pb, *pb2, b_bool;
1217     int *pi_int;
1218
1219     switch( i_query )
1220     {
1221         case DEMUX_GET_TIME:
1222             pi64 = (int64_t*)va_arg( args, int64_t * );
1223             if( p_sys->i_npt > 0 )
1224             {
1225                 *pi64 = (int64_t)(p_sys->i_npt * 1000000.);
1226                 return VLC_SUCCESS;
1227             }
1228             return VLC_EGENERIC;
1229
1230         case DEMUX_GET_LENGTH:
1231             pi64 = (int64_t*)va_arg( args, int64_t * );
1232             if( p_sys->i_npt_length > 0 )
1233             {
1234                 *pi64 = p_sys->i_npt_length * 1000000.0;
1235                 return VLC_SUCCESS;
1236             }
1237             return VLC_EGENERIC;
1238
1239         case DEMUX_GET_POSITION:
1240             pf = (double*)va_arg( args, double* );
1241             if( p_sys->i_npt_length > 0 && p_sys->i_npt > 0)
1242             {
1243                 *pf = ( (double)p_sys->i_npt / (double)p_sys->i_npt_length );
1244                 return VLC_SUCCESS;
1245             }
1246             return VLC_EGENERIC;
1247
1248         case DEMUX_SET_POSITION:
1249         case DEMUX_SET_TIME:
1250             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1251             {
1252                 int i;
1253                 float time;
1254
1255                 if( i_query == DEMUX_SET_TIME && p_sys->i_npt > 0 )
1256                 {
1257                     i64 = (int64_t)va_arg( args, int64_t );
1258                     time = (float)((double)i64 / (double)1000000.0); /* in second */
1259                 }
1260                 else if( i_query == DEMUX_SET_TIME )
1261                     return VLC_EGENERIC;
1262                 else
1263                 {
1264                     f = (double)va_arg( args, double );
1265                     time = f * (double)p_sys->i_npt_length;   /* in second */
1266                 }
1267
1268                 if( !p_sys->rtsp->playMediaSession( *p_sys->ms, time, -1, 1 ) )
1269                 {
1270                     msg_Err( p_demux, "PLAY failed %s",
1271                         p_sys->env->getResultMsg() );
1272                     return VLC_EGENERIC;
1273                 }
1274                 p_sys->i_pcr = 0;
1275
1276                 /* Retrieve RTP-Info values */
1277                 for( i = 0; i < p_sys->i_track; i++ )
1278                 {
1279                     p_sys->track[i]->b_rtcp_sync = false;
1280                     p_sys->track[i]->i_pts = 0;
1281                 }
1282
1283                 /* Retrieve the starttime if possible */
1284                 p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1285
1286                 /* Retrieve the duration if possible */
1287                 p_sys->i_npt_length = p_sys->ms->playEndTime();
1288
1289                 msg_Dbg( p_demux, "seek start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1290                 return VLC_SUCCESS;
1291             }
1292             return VLC_EGENERIC;
1293
1294         /* Special for access_demux */
1295         case DEMUX_CAN_PAUSE:
1296         case DEMUX_CAN_SEEK:
1297             pb = (bool*)va_arg( args, bool * );
1298             if( p_sys->rtsp && p_sys->i_npt_length > 0 )
1299                 /* Not always true, but will be handled in SET_PAUSE_STATE */
1300                 *pb = true;
1301             else
1302                 *pb = false;
1303             return VLC_SUCCESS;
1304
1305         case DEMUX_CAN_CONTROL_PACE:
1306             pb = (bool*)va_arg( args, bool * );
1307
1308 #if 1       /* Disable for now until we have a clock synchro algo
1309              * which works with something else than MPEG over UDP */
1310             *pb = false;
1311 #else
1312             *pb = true;
1313 #endif
1314             return VLC_SUCCESS;
1315
1316 #if 0
1317         case DEMUX_CAN_CONTROL_RATE:
1318             pb = (bool*)va_arg( args, bool * );
1319             pb2 = (bool*)va_arg( args, bool * );
1320
1321             *pb = p_sys->rtsp != NULL && p_sys->i_npt_length > 0 && !var_GetBool( p_demux, "rtsp-kasenna" );
1322             *pb2 = false;
1323             return VLC_SUCCESS;
1324
1325         case DEMUX_SET_RATE:
1326         {
1327             double f_scale;
1328
1329             if( !p_sys->rtsp || p_sys->i_npt_length <= 0 || var_GetBool( p_demux, "rtsp-kasenna" ) )
1330                 return VLC_EGENERIC;
1331
1332             /* TODO we might want to ensure that the new rate is different from
1333              * old rate after playMediaSession...
1334              * I have no idea how the server map the requested rate to the
1335              * ones it supports.
1336              * ex:
1337              *  current is x2 we request x1.5 if the server return x2 we will
1338              *  never succeed to return to x1.
1339              *  In this case we should retry with a lower rate until we have
1340              *  one (even x1).
1341              */
1342
1343             pi_int = (int*)va_arg( args, int * );
1344             f_scale = (double)INPUT_RATE_DEFAULT / (*p_int);
1345
1346             /* Passing -1 for the start and end time will mean liveMedia won't
1347             * create a Range: section for the RTSP message. The server should
1348             * pick up from the current position */
1349             if( !p_sys->rtsp->playMediaSession( *p_sys->ms, -1, -1, f_scale ) )
1350             {
1351                 msg_Err( p_demux, "PLAY with Scale %0.2f failed %s", f_scale,
1352                         p_sys->env->getResultMsg() );
1353                 return VLC_EGENERIC;
1354             }
1355             /* ReSync the stream */
1356             p_sys->i_npt_start = 0;
1357             p_sys->i_pcr = 0;
1358             p_sys->i_npt = 0.;
1359
1360             *pi_int = (int)( INPUT_RATE_DEFAULT / p_sys->ms->scale() + 0.5 );
1361             return VLC_SUCCESS;
1362         }
1363 #endif
1364
1365         case DEMUX_SET_PAUSE_STATE:
1366         {
1367             int i;
1368
1369             b_bool = (bool)va_arg( args, int );
1370             if( p_sys->rtsp == NULL )
1371                 return VLC_EGENERIC;
1372
1373             /* FIXME */
1374             if( ( b_bool && !p_sys->rtsp->pauseMediaSession( *p_sys->ms ) ) ||
1375                     ( !b_bool && !p_sys->rtsp->playMediaSession( *p_sys->ms,
1376                        -1 ) ) )
1377             {
1378                     msg_Err( p_demux, "PLAY or PAUSE failed %s", p_sys->env->getResultMsg() );
1379                     return VLC_EGENERIC;
1380             }
1381
1382             /* When we Pause, we'll need the TimeoutPrevention thread to
1383              * handle sending the "Keep Alive" message to the server.
1384              * Unfortunately Live555 isn't thread safe and so can't
1385              * do this normally while the main Demux thread is handling
1386              * a live stream. We end up with the Timeout thread blocking
1387              * waiting for a response from the server. So when we PAUSE
1388              * we set a flag that the TimeoutPrevention function will check
1389              * and if it's set, it will trigger the GET_PARAMETER message */
1390             if( b_bool && p_sys->p_timeout != NULL )
1391                 p_sys->p_timeout->b_handle_keep_alive = true;
1392             else if( !b_bool && p_sys->p_timeout != NULL )
1393                 p_sys->p_timeout->b_handle_keep_alive = false;
1394
1395             for( i = 0; !b_bool && i < p_sys->i_track; i++ )
1396             {
1397                 live_track_t *tk = p_sys->track[i];
1398                 tk->b_rtcp_sync = false;
1399                 tk->i_pts = 0;
1400                 p_sys->i_pcr = 0;
1401                 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
1402             }
1403
1404             /* Retrieve the starttime if possible */
1405             p_sys->i_npt = p_sys->i_npt_start = p_sys->ms->playStartTime();
1406
1407             /* Retrieve the duration if possible */
1408             p_sys->i_npt_length = p_sys->ms->playEndTime();
1409
1410             msg_Dbg( p_demux, "pause start: %f stop:%f", p_sys->i_npt_start, p_sys->i_npt_length );
1411             return VLC_SUCCESS;
1412         }
1413         case DEMUX_GET_TITLE_INFO:
1414         case DEMUX_SET_TITLE:
1415         case DEMUX_SET_SEEKPOINT:
1416             return VLC_EGENERIC;
1417
1418         case DEMUX_GET_PTS_DELAY:
1419             pi64 = (int64_t*)va_arg( args, int64_t * );
1420             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * 1000;
1421             return VLC_SUCCESS;
1422
1423         default:
1424             return VLC_EGENERIC;
1425     }
1426 }
1427
1428 /*****************************************************************************
1429  * RollOverTcp: reopen the rtsp into TCP mode
1430  * XXX: ugly, a lot of code are duplicated from Open()
1431  * This should REALLY be fixed
1432  *****************************************************************************/
1433 static int RollOverTcp( demux_t *p_demux )
1434 {
1435     demux_sys_t *p_sys = p_demux->p_sys;
1436     int i, i_return;
1437
1438     var_SetBool( p_demux, "rtsp-tcp", true );
1439
1440     /* We close the old RTSP session */
1441     for( i = 0; i < p_sys->i_track; i++ )
1442     {
1443         live_track_t *tk = p_sys->track[i];
1444
1445         if( tk->b_muxed ) stream_DemuxDelete( tk->p_out_muxed );
1446         if( tk->p_es ) es_out_Del( p_demux->out, tk->p_es );
1447         es_format_Clean( &tk->fmt );
1448         free( tk->p_buffer );
1449         free( tk );
1450     }
1451     if( p_sys->i_track ) free( p_sys->track );
1452     if( p_sys->p_out_asf ) stream_DemuxDelete( p_sys->p_out_asf );
1453
1454     p_sys->rtsp->teardownMediaSession( *p_sys->ms );
1455     Medium::close( p_sys->ms );
1456     RTSPClient::close( p_sys->rtsp );
1457
1458     p_sys->ms = NULL;
1459     p_sys->rtsp = NULL;
1460     p_sys->track = NULL;
1461     p_sys->i_track = 0;
1462
1463     /* Reopen rtsp client */
1464     if( ( i_return = Connect( p_demux ) ) != VLC_SUCCESS )
1465     {
1466         msg_Err( p_demux, "Failed to connect with rtsp://%s",
1467                  p_sys->psz_path );
1468         goto error;
1469     }
1470
1471     if( p_sys->p_sdp == NULL )
1472     {
1473         msg_Err( p_demux, "Failed to retrieve the RTSP Session Description" );
1474         goto error;
1475     }
1476
1477     if( ( i_return = SessionsSetup( p_demux ) ) != VLC_SUCCESS )
1478     {
1479         msg_Err( p_demux, "Nothing to play for rtsp://%s", p_sys->psz_path );
1480         goto error;
1481     }
1482
1483     if( ( i_return = Play( p_demux ) ) != VLC_SUCCESS )
1484         goto error;
1485
1486     return VLC_SUCCESS;
1487
1488 error:
1489     return VLC_EGENERIC;
1490 }
1491
1492
1493 /*****************************************************************************
1494  *
1495  *****************************************************************************/
1496 static void StreamRead( void *p_private, unsigned int i_size,
1497                         unsigned int i_truncated_bytes, struct timeval pts,
1498                         unsigned int duration )
1499 {
1500     live_track_t   *tk = (live_track_t*)p_private;
1501     demux_t        *p_demux = tk->p_demux;
1502     demux_sys_t    *p_sys = p_demux->p_sys;
1503     block_t        *p_block;
1504
1505     //msg_Dbg( p_demux, "pts: %d", pts.tv_sec );
1506
1507     int64_t i_pts = (int64_t)pts.tv_sec * INT64_C(1000000) +
1508         (int64_t)pts.tv_usec;
1509
1510     /* XXX Beurk beurk beurk Avoid having negative value XXX */
1511     i_pts &= INT64_C(0x00ffffffffffffff);
1512
1513     /* Retrieve NPT for this pts */
1514     tk->i_npt = tk->sub->getNormalPlayTime(pts);
1515
1516     if( tk->b_quicktime && tk->p_es == NULL )
1517     {
1518         QuickTimeGenericRTPSource *qtRTPSource =
1519             (QuickTimeGenericRTPSource*)tk->sub->rtpSource();
1520         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
1521         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
1522
1523         if( tk->fmt.i_cat == VIDEO_ES ) {
1524             if( qtState.sdAtomSize < 16 + 32 )
1525             {
1526                 /* invalid */
1527                 p_sys->event = 0xff;
1528                 tk->waiting = 0;
1529                 return;
1530             }
1531             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1532             tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
1533             tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
1534
1535             if( tk->fmt.i_codec == VLC_FOURCC('a', 'v', 'c', '1') )
1536             {
1537                 uint8_t *pos = (uint8_t*)qtRTPSource->qtState.sdAtom + 86;
1538                 uint8_t *endpos = (uint8_t*)qtRTPSource->qtState.sdAtom
1539                                   + qtRTPSource->qtState.sdAtomSize;
1540                 while (pos+8 < endpos) {
1541                     unsigned int atomLength = pos[0]<<24 | pos[1]<<16 | pos[2]<<8 | pos[3];
1542                     if( atomLength == 0 || atomLength > (unsigned int)(endpos-pos)) break;
1543                     if( memcmp(pos+4, "avcC", 4) == 0 &&
1544                         atomLength > 8 &&
1545                         atomLength <= INT_MAX )
1546                     {
1547                         tk->fmt.i_extra = atomLength-8;
1548                         tk->fmt.p_extra = malloc( tk->fmt.i_extra );
1549                         memcpy(tk->fmt.p_extra, pos+8, atomLength-8);
1550                         break;
1551                     }
1552                     pos += atomLength;
1553                 }
1554             }
1555             else
1556             {
1557                 tk->fmt.i_extra        = qtState.sdAtomSize - 16;
1558                 tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
1559                 memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
1560             }
1561         }
1562         else {
1563             if( qtState.sdAtomSize < 4 )
1564             {
1565                 /* invalid */
1566                 p_sys->event = 0xff;
1567                 tk->waiting = 0;
1568                 return;
1569             }
1570             tk->fmt.i_codec = VLC_FOURCC(sdAtom[0],sdAtom[1],sdAtom[2],sdAtom[3]);
1571         }
1572         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
1573     }
1574
1575 #if 0
1576     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
1577              i_size,
1578              pts.tv_sec * 1000000LL + pts.tv_usec );
1579 #endif
1580
1581     /* grow buffer if it looks like buffer is too small, but don't eat
1582      * up all the memory on strange streams */
1583     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
1584     {
1585         void *p_tmp;
1586         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
1587         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
1588         tk->i_buffer *= 2;
1589         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
1590         if( p_tmp == NULL )
1591         {
1592             msg_Warn( p_demux, "realloc failed" );
1593         }
1594         else
1595         {
1596             tk->p_buffer = (uint8_t*)p_tmp;
1597         }
1598     }
1599     if( i_size > tk->i_buffer )
1600     {
1601         msg_Warn( p_demux, "buffer overflow" );
1602     }
1603     /* FIXME could i_size be > buffer size ? */
1604     if( tk->fmt.i_codec == VLC_FOURCC('s','a','m','r') ||
1605         tk->fmt.i_codec == VLC_FOURCC('s','a','w','b') )
1606     {
1607         AMRAudioSource *amrSource = (AMRAudioSource*)tk->sub->readSource();
1608
1609         p_block = block_New( p_demux, i_size + 1 );
1610         p_block->p_buffer[0] = amrSource->lastFrameHeader();
1611         memcpy( p_block->p_buffer + 1, tk->p_buffer, i_size );
1612     }
1613     else if( tk->fmt.i_codec == VLC_FOURCC('H','2','6','1') )
1614     {
1615         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->sub->rtpSource();
1616         uint32_t header = h261Source->lastSpecialHeader();
1617         p_block = block_New( p_demux, i_size + 4 );
1618         memcpy( p_block->p_buffer, &header, 4 );
1619         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
1620
1621         if( tk->sub->rtpSource()->curPacketMarkerBit() )
1622             p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
1623     }
1624     else if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','4') )
1625     {
1626         if( (tk->p_buffer[0] & 0x1f) >= 24 )
1627             msg_Warn( p_demux, "unsupported NAL type for H264" );
1628
1629         /* Normal NAL type */
1630         p_block = block_New( p_demux, i_size + 4 );
1631         p_block->p_buffer[0] = 0x00;
1632         p_block->p_buffer[1] = 0x00;
1633         p_block->p_buffer[2] = 0x00;
1634         p_block->p_buffer[3] = 0x01;
1635         memcpy( &p_block->p_buffer[4], tk->p_buffer, i_size );
1636     }
1637     else if( tk->b_asf )
1638     {
1639         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, (int)i_size );
1640         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
1641
1642         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
1643     }
1644     else
1645     {
1646         p_block = block_New( p_demux, i_size );
1647         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
1648     }
1649
1650     if( p_sys->i_pcr < i_pts )
1651     {
1652         p_sys->i_pcr = i_pts;
1653     }
1654
1655     if( (i_pts != tk->i_pts) && (!tk->b_muxed) )
1656     {
1657         p_block->i_pts = i_pts;
1658     }
1659
1660     /* Update our global npt value */
1661     if( tk->i_npt > 0 && tk->i_npt > p_sys->i_npt && tk->i_npt < p_sys->i_npt_length)
1662         p_sys->i_npt = tk->i_npt;
1663
1664     if( !tk->b_muxed )
1665     {
1666         /*FIXME: for h264 you should check that packetization-mode=1 in sdp-file */
1667         p_block->i_dts = ( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', 'g', 'v' ) ) ? 0 : i_pts;
1668     }
1669
1670     if( tk->b_muxed )
1671     {
1672         stream_DemuxSend( tk->p_out_muxed, p_block );
1673     }
1674     else if( tk->b_asf )
1675     {
1676         stream_DemuxSend( p_sys->p_out_asf, p_block );
1677     }
1678     else
1679     {
1680         es_out_Send( p_demux->out, tk->p_es, p_block );
1681     }
1682
1683     /* warn that's ok */
1684     p_sys->event = 0xff;
1685
1686     /* we have read data */
1687     tk->waiting = 0;
1688     p_demux->p_sys->b_no_data = false;
1689     p_demux->p_sys->i_no_data_ti = 0;
1690
1691     if( i_pts > 0 && !tk->b_muxed )
1692     {
1693         tk->i_pts = i_pts;
1694     }
1695 }
1696
1697 /*****************************************************************************
1698  *
1699  *****************************************************************************/
1700 static void StreamClose( void *p_private )
1701 {
1702     live_track_t   *tk = (live_track_t*)p_private;
1703     demux_t        *p_demux = tk->p_demux;
1704     demux_sys_t    *p_sys = p_demux->p_sys;
1705
1706     msg_Dbg( p_demux, "StreamClose" );
1707
1708     p_sys->event = 0xff;
1709     p_demux->b_error = true;
1710 }
1711
1712
1713 /*****************************************************************************
1714  *
1715  *****************************************************************************/
1716 static void TaskInterrupt( void *p_private )
1717 {
1718     demux_t *p_demux = (demux_t*)p_private;
1719
1720     p_demux->p_sys->i_no_data_ti++;
1721
1722     /* Avoid lock */
1723     p_demux->p_sys->event = 0xff;
1724 }
1725
1726 /*****************************************************************************
1727  *
1728  *****************************************************************************/
1729 static void* TimeoutPrevention( void *p_data )
1730 {
1731     timeout_thread_t *p_timeout = (timeout_thread_t *)p_data;
1732
1733     for( ;; )
1734     {
1735         /* Voodoo (= no) thread safety here! *Ahem* */
1736         if( p_timeout->b_handle_keep_alive )
1737         {
1738             char *psz_bye = NULL;
1739             int canc = vlc_savecancel ();
1740
1741             p_timeout->p_sys->rtsp->getMediaSessionParameter( *p_timeout->p_sys->ms, NULL, psz_bye );
1742             vlc_restorecancel (canc);
1743         }
1744         p_timeout->p_sys->b_timeout_call = !p_timeout->b_handle_keep_alive;
1745
1746         msleep (((int64_t)p_timeout->p_sys->i_timeout - 2) * CLOCK_FREQ);
1747     }
1748     assert(0); /* dead code */
1749 }
1750
1751 /*****************************************************************************
1752  *
1753  *****************************************************************************/
1754 static int b64_decode( char *dest, char *src );
1755
1756 static int ParseASF( demux_t *p_demux )
1757 {
1758     demux_sys_t    *p_sys = p_demux->p_sys;
1759
1760     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1761     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1762     char *psz_end;
1763     block_t *p_header;
1764
1765     /* Parse the asf header */
1766     if( psz_asf == NULL )
1767         return VLC_EGENERIC;
1768
1769     psz_asf += strlen( psz_marker );
1770     psz_asf = strdup( psz_asf );    /* Duplicate it */
1771     psz_end = strchr( psz_asf, '\n' );
1772
1773     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1774         *psz_end-- = '\0';
1775
1776     if( psz_asf >= psz_end )
1777     {
1778         free( psz_asf );
1779         return VLC_EGENERIC;
1780     }
1781
1782     /* Always smaller */
1783     p_header = block_New( p_demux, psz_end - psz_asf );
1784     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1785     //msg_Dbg( p_demux, "Size=%d Hdrb64=%s", p_header->i_buffer, psz_asf );
1786     if( p_header->i_buffer <= 0 )
1787     {
1788         free( psz_asf );
1789         return VLC_EGENERIC;
1790     }
1791
1792     /* Parse it to get packet size */
1793     asf_HeaderParse( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1794
1795     /* Send it to demuxer */
1796     stream_DemuxSend( p_sys->p_out_asf, p_header );
1797
1798     free( psz_asf );
1799     return VLC_SUCCESS;
1800 }
1801
1802
1803 static unsigned char* parseH264ConfigStr( char const* configStr,
1804                                           unsigned int& configSize )
1805 {
1806     char *dup, *psz;
1807     int i, i_records = 1;
1808
1809     if( configSize )
1810     configSize = 0;
1811
1812     if( configStr == NULL || *configStr == '\0' )
1813         return NULL;
1814
1815     psz = dup = strdup( configStr );
1816
1817     /* Count the number of comma's */
1818     for( psz = dup; *psz != '\0'; ++psz )
1819     {
1820         if( *psz == ',')
1821         {
1822             ++i_records;
1823             *psz = '\0';
1824         }
1825     }
1826
1827     unsigned char *cfg = new unsigned char[5 * strlen(dup)];
1828     psz = dup;
1829     for( i = 0; i < i_records; i++ )
1830     {
1831         cfg[configSize++] = 0x00;
1832         cfg[configSize++] = 0x00;
1833         cfg[configSize++] = 0x00;
1834         cfg[configSize++] = 0x01;
1835
1836         configSize += b64_decode( (char*)&cfg[configSize], psz );
1837         psz += strlen(psz)+1;
1838     }
1839
1840     free( dup );
1841     return cfg;
1842 }
1843
1844 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1845 static int b64_decode( char *dest, char *src )
1846 {
1847     const char *dest_start = dest;
1848     int  i_level;
1849     int  last = 0;
1850     int  b64[256] = {
1851         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1852         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1853         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1854         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1855         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1856         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1857         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1858         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1859         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1860         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1861         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1862         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1863         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1864         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1865         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1866         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1867         };
1868
1869     for( i_level = 0; *src != '\0'; src++ )
1870     {
1871         int  c;
1872
1873         c = b64[(unsigned int)*src];
1874         if( c == -1 )
1875         {
1876             continue;
1877         }
1878
1879         switch( i_level )
1880         {
1881             case 0:
1882                 i_level++;
1883                 break;
1884             case 1:
1885                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1886                 i_level++;
1887                 break;
1888             case 2:
1889                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1890                 i_level++;
1891                 break;
1892             case 3:
1893                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1894                 i_level = 0;
1895         }
1896         last = c;
1897     }
1898
1899     *dest = '\0';
1900
1901     return dest - dest_start;
1902 }