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

   1 /*****************************************************************************
   2  * live.cpp : live.com support.
   3  *****************************************************************************
   4  * Copyright (C) 2003-2004 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28
  29 #include <vlc/vlc.h>
  30 #include <vlc/input.h>
  31
  32 #include <iostream>
  33
  34 #if defined( WIN32 )
  35 #   include <winsock2.h>
  36 #endif
  37
  38 #include "BasicUsageEnvironment.hh"
  39 #include "GroupsockHelper.hh"
  40 #include "liveMedia.hh"
  41
  42 extern "C" {
  43 #include "../access/mms/asf.h"  /* Who said ugly ? */
  44 }
  45
  46 #if (LIVEMEDIA_LIBRARY_VERSION_INT < 1089936000)
  47 #define RECLAIM_ENV(env) delete (env)
  48 #else
  49 #define RECLAIM_ENV(env) (env)->reclaim()
  50 #endif
  51
  52
  53 using namespace std;
  54
  55 /*****************************************************************************
  56  * Module descriptor
  57  *****************************************************************************/
  58 static int  Open ( vlc_object_t * );
  59 static void Close( vlc_object_t * );
  60
  61 #define CACHING_TEXT N_("Caching value (ms)")
  62 #define CACHING_LONGTEXT N_( \
  63     "Allows you to modify the default caching value for RTSP streams. This " \
  64     "value should be set in millisecond units." )
  65
  66 #define KASENNA_TEXT N_( "Kasenna RTSP dialect")
  67 #define KASENNA_LONGTEXT N_( "Kasenna server speak an old and unstandard dialect of RTSP " \
  68     "When you set this parameter, VLC will try this dialect for communication. In " \
  69     "this mode you cannot talk to normal RTSP servers." )
  70
  71 vlc_module_begin();
  72     set_description( _("live.com (RTSP/RTP/SDP) demuxer" ) );
  73     set_capability( "demux2", 50 );
  74     set_callbacks( Open, Close );
  75     add_shortcut( "live" );
  76
  77     add_submodule();
  78         set_description( _("RTSP/RTP access and demux") );
  79         add_shortcut( "rtsp" );
  80         add_shortcut( "sdp" );
  81         set_capability( "access_demux", 0 );
  82         set_callbacks( Open, Close );
  83         add_bool( "rtsp-tcp", 0, NULL,
  84                   N_("Use RTP over RTSP (TCP)"),
  85                   N_("Use RTP over RTSP (TCP)"), VLC_TRUE );
  86         add_integer( "rtsp-caching", 4 * DEFAULT_PTS_DELAY / 1000, NULL,
  87             CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
  88         add_bool( "rtsp-kasenna", VLC_FALSE, NULL, KASENNA_TEXT,
  89                   KASENNA_LONGTEXT, VLC_TRUE );
  90 vlc_module_end();
  91
  92 /* TODO:
  93  *  - Improve support of PS/TS
  94  *  - Support X-QT/X-QUICKTIME generic codec for audio.
  95  *
  96  *  - Check memory leak, delete/free -> still one when using rtsp-tcp but I'm
  97  *  not sure if it comes from me.
  98  *
  99  */
 100
 101 /*****************************************************************************
 102  * Local prototypes
 103  *****************************************************************************/
 104 typedef struct
 105 {
 106     demux_t     *p_demux;
 107
 108     vlc_bool_t   b_quicktime;
 109     vlc_bool_t   b_muxed;
 110     vlc_bool_t   b_asf;
 111
 112     es_format_t  fmt;
 113     es_out_id_t  *p_es;
 114
 115     stream_t     *p_out_muxed;    /* for muxed stream */
 116
 117     RTPSource    *rtpSource;
 118     FramedSource *readSource;
 119     vlc_bool_t   b_rtcp_sync;
 120
 121     uint8_t      *p_buffer;
 122     unsigned int  i_buffer;
 123
 124     char         waiting;
 125
 126     mtime_t      i_pts;
 127 } live_track_t;
 128
 129 struct demux_sys_t
 130 {
 131     char         *p_sdp;    /* XXX mallocated */
 132
 133     MediaSession     *ms;
 134     TaskScheduler    *scheduler;
 135     UsageEnvironment *env ;
 136     RTSPClient       *rtsp;
 137
 138     /* */
 139     int              i_track;
 140     live_track_t     **track;   /* XXX mallocated */
 141     mtime_t          i_pcr;
 142     mtime_t          i_pcr_start;
 143
 144     /* Asf */
 145     asf_header_t     asfh;
 146     stream_t         *p_out_asf;
 147
 148     /* */
 149     mtime_t          i_length;
 150     mtime_t          i_start;
 151
 152     char             event;
 153 };
 154
 155 static int Demux  ( demux_t * );
 156 static int Control( demux_t *, int, va_list );
 157
 158 static int ParseASF( demux_t * );
 159
 160 static void StreamRead( void *p_private, unsigned int i_size, unsigned int i_truncated_bytes, struct timeval pts, unsigned int i_duration );
 161 static void StreamClose( void *p_private );
 162 static void TaskInterrupt( void *p_private );
 163
 164
 165 /*****************************************************************************
 166  * DemuxOpen:
 167  *****************************************************************************/
 168 static int  Open ( vlc_object_t *p_this )
 169 {
 170     demux_t     *p_demux = (demux_t*)p_this;
 171     demux_sys_t *p_sys;
 172
 173     MediaSubsessionIterator *iter;
 174     MediaSubsession *sub;
 175
 176     vlc_bool_t b_rtsp_tcp;
 177     uint8_t *p_peek;
 178
 179     int     i_sdp;
 180     int     i_sdp_max;
 181     uint8_t *p_sdp;
 182
 183     if( p_demux->s )
 184     {
 185         /* See if it looks like a SDP
 186            v, o, s fields are mandatory and in this order */
 187         if( stream_Peek( p_demux->s, &p_peek, 7 ) < 7 )
 188         {
 189             msg_Err( p_demux, "cannot peek" );
 190             return VLC_EGENERIC;
 191         }
 192         if( strncmp( (char*)p_peek, "v=0\r\n", 5 ) && strncmp( (char*)p_peek, "v=0\n", 4 ) &&
 193             ( p_peek[0] < 'a' || p_peek[0] > 'z' || p_peek[1] != '=' ) )
 194         {
 195             msg_Warn( p_demux, "SDP module discarded" );
 196             return VLC_EGENERIC;
 197         }
 198     }
 199     else
 200     {
 201         var_Create( p_demux, "rtsp-caching", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
 202     }
 203
 204     p_demux->pf_demux  = Demux;
 205     p_demux->pf_control= Control;
 206     p_demux->p_sys     = p_sys = (demux_sys_t*)malloc( sizeof( demux_sys_t ) );
 207     p_sys->p_sdp = NULL;
 208     p_sys->scheduler = NULL;
 209     p_sys->env = NULL;
 210     p_sys->ms = NULL;
 211     p_sys->rtsp = NULL;
 212     p_sys->i_track = 0;
 213     p_sys->track   = NULL;
 214     p_sys->i_pcr   = 0;
 215     p_sys->i_pcr_start = 0;
 216     p_sys->i_length = 0;
 217     p_sys->i_start = 0;
 218     p_sys->p_out_asf = NULL;
 219
 220
 221     if( ( p_sys->scheduler = BasicTaskScheduler::createNew() ) == NULL )
 222     {
 223         msg_Err( p_demux, "BasicTaskScheduler::createNew failed" );
 224         goto error;
 225     }
 226     if( ( p_sys->env = BasicUsageEnvironment::createNew(*p_sys->scheduler) ) == NULL )
 227     {
 228         msg_Err( p_demux, "BasicUsageEnvironment::createNew failed" );
 229         goto error;
 230     }
 231
 232     if( p_demux->s == NULL && !strcasecmp( p_demux->psz_access, "rtsp" ) )
 233     {
 234         char *psz_url;
 235         char *psz_options;
 236
 237         if( ( p_sys->rtsp = RTSPClient::createNew(*p_sys->env, 1/*verbose*/, "VLC Media Player" ) ) == NULL )
 238         {
 239             msg_Err( p_demux, "RTSPClient::createNew failed (%s)", p_sys->env->getResultMsg() );
 240             goto error;
 241         }
 242         psz_url = (char*)malloc( strlen( p_demux->psz_path ) + 8 );
 243         sprintf( psz_url, "rtsp://%s", p_demux->psz_path );
 244
 245         /* Add kasenna option */
 246         if( var_CreateGetBool( p_demux, "rtsp-kasenna" )) msg_Dbg(p_demux, "add kasenna option");
 247         psz_options = p_sys->rtsp->sendOptionsCmd( psz_url );
 248         if( psz_options )
 249             delete [] psz_options;
 250
 251         p_sdp = (uint8_t*)p_sys->rtsp->describeURL( psz_url );
 252         if( p_sdp == NULL )
 253         {
 254             msg_Err( p_demux, "describeURL failed (%s)", p_sys->env->getResultMsg() );
 255
 256             free( psz_url );
 257             goto error;
 258         }
 259         free( psz_url );
 260
 261         /* malloc-ated copy */
 262         p_sys->p_sdp = strdup( (char*)p_sdp );
 263         delete[] p_sdp;
 264         fprintf( stderr, "sdp=%s\n", p_sys->p_sdp );
 265     }
 266     else if( p_demux->s == NULL && !strcasecmp( p_demux->psz_access, "sdp" ) )
 267     {
 268         p_sys->p_sdp = strdup( p_demux->psz_path );
 269     }
 270     else
 271     {
 272         /* Gather the complete sdp file */
 273         i_sdp = 0;
 274         i_sdp_max = 1000;
 275         p_sdp = (uint8_t*)malloc( i_sdp_max );
 276         for( ;; )
 277         {
 278             int i_read = stream_Read( p_demux->s, &p_sdp[i_sdp], i_sdp_max - i_sdp - 1 );
 279
 280             if( i_read < 0 )
 281             {
 282                 msg_Err( p_demux, "failed to read SDP" );
 283                 free( p_sys );
 284                 return VLC_EGENERIC;
 285             }
 286
 287             i_sdp += i_read;
 288
 289             if( i_read < i_sdp_max - i_sdp - 1 )
 290             {
 291                 p_sdp[i_sdp] = '\0';
 292                 break;
 293             }
 294
 295             i_sdp_max += 1000;
 296             p_sdp = (uint8_t*)realloc( p_sdp, i_sdp_max );
 297         }
 298         p_sys->p_sdp = (char*)p_sdp;
 299
 300         msg_Dbg( p_demux, "sdp=%s\n", p_sys->p_sdp );
 301     }
 302     if( ( p_sys->ms = MediaSession::createNew(*p_sys->env, p_sys->p_sdp ) ) == NULL )
 303     {
 304         msg_Err( p_demux, "MediaSession::createNew failed" );
 305         goto error;
 306     }
 307
 308     b_rtsp_tcp = var_CreateGetBool( p_demux, "rtsp-tcp" );
 309
 310     /* Initialise each media subsession */
 311     iter = new MediaSubsessionIterator( *p_sys->ms );
 312     while( ( sub = iter->next() ) != NULL )
 313     {
 314         unsigned int i_buffer = 0;
 315         Boolean bInit;
 316
 317         /* Value taken from mplayer */
 318         if( !strcmp( sub->mediumName(), "audio" ) )
 319             i_buffer = 100000;
 320         else if( !strcmp( sub->mediumName(), "video" ) )
 321             i_buffer = 2000000;
 322         else
 323             continue;
 324
 325         if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 326             bInit = sub->initiate( 4 ); /* Constant ? */
 327         else
 328             bInit = sub->initiate();
 329
 330         if( !bInit )
 331         {
 332             msg_Warn( p_demux, "RTP subsession '%s/%s' failed(%s)", sub->mediumName(), sub->codecName(), p_sys->env->getResultMsg() );
 333         }
 334         else
 335         {
 336             if( sub->rtpSource() )
 337             {
 338                 int fd = sub->rtpSource()->RTPgs()->socketNum();
 339                 /* Increase the buffer size */
 340                 increaseReceiveBufferTo( *p_sys->env, fd, i_buffer );
 341             }
 342
 343             msg_Dbg( p_demux, "RTP subsession '%s/%s'", sub->mediumName(), sub->codecName() );
 344
 345             /* Issue the SETUP */
 346             if( p_sys->rtsp )
 347             {
 348                 p_sys->rtsp->setupMediaSubsession( *sub, False, b_rtsp_tcp ? True : False );
 349             }
 350         }
 351     }
 352
 353     if( p_sys->rtsp )
 354     {
 355         /* The PLAY */
 356         if( !p_sys->rtsp->playMediaSession( *p_sys->ms ) )
 357         {
 358             msg_Err( p_demux, "PLAY failed %s", p_sys->env->getResultMsg() );
 359             goto error;
 360         }
 361     }
 362
 363     /* Create all es struct */
 364     iter->reset();
 365     while( ( sub = iter->next() ) != NULL )
 366     {
 367         live_track_t *tk;
 368
 369         if( sub->readSource() == NULL )
 370         {
 371             continue;
 372         }
 373
 374         tk = (live_track_t*)malloc( sizeof( live_track_t ) );
 375         tk->p_demux = p_demux;
 376         tk->waiting = 0;
 377         tk->i_pts   = 0;
 378         tk->b_quicktime = VLC_FALSE;
 379         tk->b_muxed     = VLC_FALSE;
 380         tk->b_asf       = VLC_FALSE;
 381         tk->b_rtcp_sync = VLC_FALSE;
 382         tk->p_out_muxed = NULL;
 383         tk->p_es        = NULL;
 384         tk->i_buffer    = 65536;
 385         tk->p_buffer    = (uint8_t *)malloc( 65536 );
 386
 387         /* Value taken from mplayer */
 388         if( !strcmp( sub->mediumName(), "audio" ) )
 389         {
 390             es_format_Init( &tk->fmt, AUDIO_ES, VLC_FOURCC( 'u', 'n', 'd', 'f' ) );
 391             tk->fmt.audio.i_channels = sub->numChannels();
 392             tk->fmt.audio.i_rate = sub->rtpSource()->timestampFrequency();
 393
 394             if( !strcmp( sub->codecName(), "MPA" ) ||
 395                 !strcmp( sub->codecName(), "MPA-ROBUST" ) ||
 396                 !strcmp( sub->codecName(), "X-MP3-DRAFT-00" ) )
 397             {
 398                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
 399                 tk->fmt.audio.i_rate = 0;
 400             }
 401             else if( !strcmp( sub->codecName(), "AC3" ) )
 402             {
 403                 tk->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
 404                 tk->fmt.audio.i_rate = 0;
 405             }
 406             else if( !strcmp( sub->codecName(), "L16" ) )
 407             {
 408                 tk->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
 409                 tk->fmt.audio.i_bitspersample = 16;
 410             }
 411             else if( !strcmp( sub->codecName(), "L8" ) )
 412             {
 413                 tk->fmt.i_codec = VLC_FOURCC( 'a', 'r', 'a', 'w' );
 414                 tk->fmt.audio.i_bitspersample = 8;
 415             }
 416             else if( !strcmp( sub->codecName(), "PCMU" ) )
 417             {
 418                 tk->fmt.i_codec = VLC_FOURCC( 'u', 'l', 'a', 'w' );
 419             }
 420             else if( !strcmp( sub->codecName(), "PCMA" ) )
 421             {
 422                 tk->fmt.i_codec = VLC_FOURCC( 'a', 'l', 'a', 'w' );
 423             }
 424             else if( !strcmp( sub->codecName(), "MP4A-LATM" ) )
 425             {
 426                 unsigned int i_extra;
 427                 uint8_t      *p_extra;
 428
 429                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 430
 431                 if( ( p_extra = parseStreamMuxConfigStr( sub->fmtp_config(), i_extra ) ) )
 432                 {
 433                     tk->fmt.i_extra = i_extra;
 434                     tk->fmt.p_extra = malloc( i_extra );
 435                     memcpy( tk->fmt.p_extra, p_extra, i_extra );
 436                     delete[] p_extra;
 437                 }
 438             }
 439             else if( !strcmp( sub->codecName(), "MPEG4-GENERIC" ) )
 440             {
 441                 unsigned int i_extra;
 442                 uint8_t      *p_extra;
 443
 444                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
 445
 446                 if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(), i_extra ) ) )
 447                 {
 448                     tk->fmt.i_extra = i_extra;
 449                     tk->fmt.p_extra = malloc( i_extra );
 450                     memcpy( tk->fmt.p_extra, p_extra, i_extra );
 451                     delete[] p_extra;
 452                 }
 453             }
 454             else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 455             {
 456                 tk->b_asf = VLC_TRUE;
 457                 if( p_sys->p_out_asf == NULL )
 458                     p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf", p_demux->out );;
 459             }
 460         }
 461         else if( !strcmp( sub->mediumName(), "video" ) )
 462         {
 463             es_format_Init( &tk->fmt, VIDEO_ES, VLC_FOURCC( 'u', 'n', 'd', 'f' ) );
 464             if( !strcmp( sub->codecName(), "MPV" ) )
 465             {
 466                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
 467             }
 468             else if( !strcmp( sub->codecName(), "H263" ) ||
 469                      !strcmp( sub->codecName(), "H263-1998" ) ||
 470                      !strcmp( sub->codecName(), "H263-2000" ) )
 471             {
 472                 tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
 473             }
 474             else if( !strcmp( sub->codecName(), "H261" ) )
 475             {
 476                 tk->fmt.i_codec = VLC_FOURCC( 'H', '2', '6', '1' );
 477             }
 478             else if( !strcmp( sub->codecName(), "JPEG" ) )
 479             {
 480                 tk->fmt.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
 481             }
 482             else if( !strcmp( sub->codecName(), "X-SV3V-ES" ) )
 483             {
 484                 tk->fmt.i_codec = VLC_FOURCC( 'S', 'V', 'Q', '3' );
 485             }
 486             else if( !strcmp( sub->codecName(), "MP4V-ES" ) )
 487             {
 488                 unsigned int i_extra;
 489                 uint8_t      *p_extra;
 490
 491                 tk->fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v' );
 492
 493                 if( ( p_extra = parseGeneralConfigStr( sub->fmtp_config(), i_extra ) ) )
 494                 {
 495                     tk->fmt.i_extra = i_extra;
 496                     tk->fmt.p_extra = malloc( i_extra );
 497                     memcpy( tk->fmt.p_extra, p_extra, i_extra );
 498                     delete[] p_extra;
 499                 }
 500             }
 501             else if( !strcmp( sub->codecName(), "X-QT" ) || !strcmp( sub->codecName(), "X-QUICKTIME" ) )
 502             {
 503                 tk->b_quicktime = VLC_TRUE;
 504             }
 505             else if( !strcmp( sub->codecName(), "MP2T" ) )
 506             {
 507                 tk->b_muxed = VLC_TRUE;
 508                 tk->p_out_muxed = stream_DemuxNew( p_demux, "ts", p_demux->out );
 509             }
 510             else if( !strcmp( sub->codecName(), "MP2P" ) || !strcmp( sub->codecName(), "MP1S" ) )
 511             {
 512                 tk->b_muxed = VLC_TRUE;
 513                 tk->p_out_muxed = stream_DemuxNew( p_demux, "ps", p_demux->out );
 514             }
 515             else if( !strcmp( sub->codecName(), "X-ASF-PF" ) )
 516             {
 517                 tk->b_asf = VLC_TRUE;
 518                 if( p_sys->p_out_asf == NULL )
 519                     p_sys->p_out_asf = stream_DemuxNew( p_demux, "asf", p_demux->out );;
 520             }
 521         }
 522
 523         if( tk->fmt.i_codec != VLC_FOURCC( 'u', 'n', 'd', 'f' ) )
 524         {
 525             tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 526         }
 527
 528         if( sub->rtcpInstance() != NULL )
 529         {
 530             sub->rtcpInstance()->setByeHandler( StreamClose, tk );
 531         }
 532
 533         if( tk->p_es || tk->b_quicktime || tk->b_muxed || tk->b_asf )
 534         {
 535             tk->readSource = sub->readSource();
 536             tk->rtpSource  = sub->rtpSource();
 537
 538             /* Append */
 539             p_sys->track = (live_track_t**)realloc( p_sys->track, sizeof( live_track_t ) * ( p_sys->i_track + 1 ) );
 540             p_sys->track[p_sys->i_track++] = tk;
 541         }
 542         else
 543         {
 544             free( tk );
 545         }
 546     }
 547
 548     delete iter;
 549
 550     if( p_sys->p_out_asf && ParseASF( p_demux ) )
 551     {
 552         msg_Err( p_demux, "cannot find a usable asf header" );
 553         /* TODO Clean tracks */
 554         goto error;
 555     }
 556
 557     p_sys->i_length = (mtime_t)(p_sys->ms->playEndTime() * 1000000.0);
 558     if( p_sys->i_length < 0 )
 559     {
 560         p_sys->i_length = 0;
 561     }
 562     else if( p_sys->i_length > 0 )
 563     {
 564         /* FIXME */
 565         /* p_input->stream.p_selected_area->i_size = 1000;*/ /* needed for now */
 566     }
 567
 568     if( p_sys->i_track <= 0 )
 569     {
 570         msg_Err( p_demux, "no codec supported, aborting" );
 571         goto error;
 572     }
 573
 574     return VLC_SUCCESS;
 575
 576 error:
 577     if( p_sys->p_out_asf )
 578     {
 579         stream_DemuxDelete( p_sys->p_out_asf );
 580     }
 581     if( p_sys->ms )
 582     {
 583         Medium::close( p_sys->ms );
 584     }
 585     if( p_sys->rtsp )
 586     {
 587         Medium::close( p_sys->rtsp );
 588     }
 589     if( p_sys->env )
 590     {
 591         RECLAIM_ENV(p_sys->env);
 592     }
 593     if( p_sys->scheduler )
 594     {
 595         delete p_sys->scheduler;
 596     }
 597     if( p_sys->p_sdp )
 598     {
 599         free( p_sys->p_sdp );
 600     }
 601     free( p_sys );
 602     return VLC_EGENERIC;
 603 }
 604
 605
 606
 607 /*****************************************************************************
 608  * DemuxClose:
 609  *****************************************************************************/
 610 static void Close( vlc_object_t *p_this )
 611 {
 612     demux_t *p_demux = (demux_t*)p_this;
 613     demux_sys_t    *p_sys = p_demux->p_sys;
 614     int            i;
 615
 616     for( i = 0; i < p_sys->i_track; i++ )
 617     {
 618         live_track_t *tk = p_sys->track[i];
 619
 620         if( tk->b_muxed )
 621         {
 622             stream_DemuxDelete( tk->p_out_muxed );
 623         }
 624         free( tk->p_buffer );
 625         free( tk );
 626     }
 627     if( p_sys->i_track )
 628     {
 629         free( p_sys->track );
 630     }
 631     if( p_sys->p_out_asf )
 632     {
 633         stream_DemuxDelete( p_sys->p_out_asf );
 634     }
 635
 636     if( p_sys->rtsp && p_sys->ms )
 637     {
 638         /* TEARDOWN */
 639         p_sys->rtsp->teardownMediaSession( *p_sys->ms );
 640     }
 641     Medium::close( p_sys->ms );
 642     if( p_sys->rtsp )
 643     {
 644         Medium::close( p_sys->rtsp );
 645     }
 646
 647     if( p_sys->env )
 648     {
 649         RECLAIM_ENV(p_sys->env);
 650     }
 651     if( p_sys->scheduler )
 652     {
 653         delete p_sys->scheduler;
 654     }
 655     if( p_sys->p_sdp )
 656     {
 657         free( p_sys->p_sdp );
 658     }
 659     free( p_sys );
 660 }
 661
 662 /*****************************************************************************
 663  * Demux:
 664  *****************************************************************************/
 665 static int Demux( demux_t *p_demux )
 666 {
 667     demux_sys_t    *p_sys = p_demux->p_sys;
 668     TaskToken      task;
 669
 670     vlc_bool_t      b_send_pcr = VLC_TRUE;
 671     mtime_t         i_pcr = 0;
 672     int             i;
 673
 674     for( i = 0; i < p_sys->i_track; i++ )
 675     {
 676         live_track_t *tk = p_sys->track[i];
 677
 678         if( tk->b_asf || tk->b_muxed )
 679             b_send_pcr = VLC_FALSE;
 680
 681         if( i_pcr == 0 )
 682         {
 683             i_pcr = tk->i_pts;
 684         }
 685         else if( tk->i_pts != 0 && i_pcr > tk->i_pts )
 686         {
 687             i_pcr = tk->i_pts ;
 688         }
 689     }
 690     if( i_pcr != p_sys->i_pcr && i_pcr > 0 )
 691     {
 692         p_sys->i_pcr = i_pcr;
 693
 694         if( b_send_pcr )
 695             es_out_Control( p_demux->out, ES_OUT_SET_PCR, i_pcr );
 696         if( p_sys->i_pcr_start <= 0 || p_sys->i_pcr_start > i_pcr ||
 697             ( p_sys->i_length > 0 && i_pcr - p_sys->i_pcr_start > p_sys->i_length ) )
 698         {
 699             p_sys->i_pcr_start = i_pcr;
 700         }
 701     }
 702
 703     /* First warm we want to read data */
 704     p_sys->event = 0;
 705     for( i = 0; i < p_sys->i_track; i++ )
 706     {
 707         live_track_t *tk = p_sys->track[i];
 708
 709         if( tk->waiting == 0 )
 710         {
 711             tk->waiting = 1;
 712             tk->readSource->getNextFrame( tk->p_buffer, tk->i_buffer,
 713                                           StreamRead, tk,
 714                                           StreamClose, tk );
 715         }
 716     }
 717     /* Create a task that will be called if we wait more than 300ms */
 718     task = p_sys->scheduler->scheduleDelayedTask( 300000, TaskInterrupt, p_demux );
 719
 720     /* Do the read */
 721     p_sys->scheduler->doEventLoop( &p_sys->event );
 722
 723     /* remove the task */
 724     p_sys->scheduler->unscheduleDelayedTask( task );
 725
 726     /* Check for gap in pts value */
 727     for( i = 0; i < p_sys->i_track; i++ )
 728     {
 729         live_track_t *tk = p_sys->track[i];
 730
 731         if( !tk->b_muxed && !tk->b_rtcp_sync && tk->rtpSource->hasBeenSynchronizedUsingRTCP() )
 732         {
 733             msg_Dbg( p_demux, "tk->rtpSource->hasBeenSynchronizedUsingRTCP()" );
 734
 735             es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
 736             tk->b_rtcp_sync = VLC_TRUE;
 737
 738             /* reset PCR and PCR start, mmh won't work well for multi-stream I fear */
 739             tk->i_pts = 0;
 740             p_sys->i_pcr_start = 0;
 741             p_sys->i_pcr = 0;
 742             i_pcr = 0;
 743         }
 744     }
 745
 746     return p_demux->b_error ? 0 : 1;
 747 }
 748
 749 /*****************************************************************************
 750  * Control:
 751  *****************************************************************************/
 752 static int Control( demux_t *p_demux, int i_query, va_list args )
 753 {
 754     demux_sys_t *p_sys = p_demux->p_sys;
 755     int64_t *pi64;
 756     double  *pf, f;
 757     vlc_bool_t *pb, b_bool;
 758     int i;
 759
 760     switch( i_query )
 761     {
 762         case DEMUX_GET_TIME:
 763             pi64 = (int64_t*)va_arg( args, int64_t * );
 764             *pi64 = p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start;
 765             return VLC_SUCCESS;
 766
 767         case DEMUX_GET_LENGTH:
 768             pi64 = (int64_t*)va_arg( args, int64_t * );
 769             *pi64 = p_sys->i_length;
 770             return VLC_SUCCESS;
 771
 772         case DEMUX_GET_POSITION:
 773             pf = (double*)va_arg( args, double* );
 774             if( p_sys->i_length > 0 )
 775             {
 776                 *pf = (double)( p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start)/
 777                       (double)(p_sys->i_length);
 778             }
 779             else
 780             {
 781                 *pf = 0;
 782             }
 783             return VLC_SUCCESS;
 784
 785         case DEMUX_SET_POSITION:
 786         {
 787             float time;
 788
 789             f = (double)va_arg( args, double );
 790             time = f * (double)p_sys->i_length / 1000000.0;   /* in second */
 791
 792             if( p_sys->rtsp && p_sys->i_length > 0 )
 793             {
 794                 MediaSubsessionIterator *iter = new MediaSubsessionIterator( *p_sys->ms );
 795                 MediaSubsession         *sub;
 796                 int i;
 797
 798                 while( ( sub = iter->next() ) != NULL )
 799                 {
 800                     p_sys->rtsp->playMediaSubsession( *sub, time );
 801                 }
 802                 delete iter;
 803                 p_sys->i_start = (mtime_t)(f * (double)p_sys->i_length);
 804                 p_sys->i_pcr_start = 0;
 805                 p_sys->i_pcr       = 0;
 806
 807                 for( i = 0; i < p_sys->i_track; i++ )
 808                 {
 809                     p_sys->track[i]->i_pts = 0;
 810                 }
 811                 return VLC_SUCCESS;
 812             }
 813             return VLC_SUCCESS;
 814         }
 815
 816         /* Special for access_demux */
 817         case DEMUX_CAN_PAUSE:
 818             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 819             if( p_sys->rtsp && p_sys->i_length )
 820                 *pb = VLC_TRUE; /* Not always true, but will be handled in SET_PAUSE_STATE */
 821             else
 822                 *pb = VLC_FALSE;
 823             return VLC_SUCCESS;
 824
 825         case DEMUX_CAN_CONTROL_PACE:
 826             pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 827             *pb = VLC_FALSE;
 828             return VLC_SUCCESS;
 829
 830         case DEMUX_SET_PAUSE_STATE:
 831             double d_npt;
 832             MediaSubsessionIterator *iter;
 833             MediaSubsession *sub;
 834
 835             d_npt = ( (double)( p_sys->i_pcr - p_sys->i_pcr_start + p_sys->i_start ) ) / 1000000.00;
 836
 837             b_bool = (vlc_bool_t)va_arg( args, vlc_bool_t );
 838             if( p_sys->rtsp == NULL )
 839                 return VLC_EGENERIC;
 840
 841             iter = new MediaSubsessionIterator( *p_sys->ms );
 842             while( ( sub = iter->next() ) != NULL )
 843             {
 844                 if( ( b_bool && !p_sys->rtsp->pauseMediaSubsession( *sub ) ) ||
 845                     ( !b_bool && !p_sys->rtsp->playMediaSubsession( *sub, d_npt > 0 ? d_npt : -1 ) ) )
 846                 {
 847                     delete iter;
 848                     return VLC_EGENERIC;
 849                 }
 850             }
 851             delete iter;
 852 #if 0
 853             /* reset PCR and PCR start, mmh won't work well for multi-stream I fear */
 854             for( i = 0; i < p_sys->i_track; i++ )
 855             {
 856                 p_sys->track[i]->i_pts = 0;
 857             }
 858             p_sys->i_pcr_start = 0; /* FIXME Wrong */
 859             p_sys->i_pcr = 0;
 860 #endif
 861             return VLC_SUCCESS;
 862
 863         case DEMUX_GET_TITLE_INFO:
 864         case DEMUX_SET_TITLE:
 865         case DEMUX_SET_SEEKPOINT:
 866             return VLC_EGENERIC;
 867
 868         case DEMUX_GET_PTS_DELAY:
 869             pi64 = (int64_t*)va_arg( args, int64_t * );
 870             *pi64 = (int64_t)var_GetInteger( p_demux, "rtsp-caching" ) * I64C(1000);
 871             return VLC_SUCCESS;
 872
 873         default:
 874             return VLC_EGENERIC;
 875     }
 876 }
 877
 878 /*****************************************************************************
 879  *
 880  *****************************************************************************/
 881 static void StreamRead( void *p_private, unsigned int i_size, unsigned int i_truncated_bytes, struct timeval pts, unsigned int duration )
 882 {
 883     live_track_t   *tk = (live_track_t*)p_private;
 884     demux_t        *p_demux = tk->p_demux;
 885     demux_sys_t    *p_sys = p_demux->p_sys;
 886     block_t        *p_block;
 887
 888     mtime_t i_pts = (uint64_t)pts.tv_sec * UI64C(1000000) + (uint64_t)pts.tv_usec;
 889
 890     /* XXX Beurk beurk beurk Avoid having negative value XXX */
 891     i_pts &= UI64C(0x00ffffffffffffff);
 892
 893     if( tk->b_quicktime && tk->p_es == NULL )
 894     {
 895         QuickTimeGenericRTPSource *qtRTPSource = (QuickTimeGenericRTPSource*)tk->rtpSource;
 896         QuickTimeGenericRTPSource::QTState &qtState = qtRTPSource->qtState;
 897         uint8_t *sdAtom = (uint8_t*)&qtState.sdAtom[4];
 898
 899         if( qtState.sdAtomSize < 16 + 32 )
 900         {
 901             /* invalid */
 902             p_sys->event = 0xff;
 903             tk->waiting = 0;
 904             return;
 905         }
 906         tk->fmt.i_codec = VLC_FOURCC( sdAtom[0], sdAtom[1], sdAtom[2], sdAtom[3] );
 907         tk->fmt.video.i_width  = (sdAtom[28] << 8) | sdAtom[29];
 908         tk->fmt.video.i_height = (sdAtom[30] << 8) | sdAtom[31];
 909
 910         tk->fmt.i_extra        = qtState.sdAtomSize - 16;
 911         tk->fmt.p_extra        = malloc( tk->fmt.i_extra );
 912         memcpy( tk->fmt.p_extra, &sdAtom[12], tk->fmt.i_extra );
 913
 914         tk->p_es = es_out_Add( p_demux->out, &tk->fmt );
 915     }
 916
 917 #if 0
 918     fprintf( stderr, "StreamRead size=%d pts=%lld\n",
 919              i_size,
 920              pts.tv_sec * 1000000LL + pts.tv_usec );
 921 #endif
 922
 923     /* grow buffer if it looks like buffer is too small, but don't eat
 924      * up all the memory on strange streams */
 925     if( i_truncated_bytes > 0 && tk->i_buffer < 2000000 )
 926     {
 927         void *p_tmp;
 928         msg_Dbg( p_demux, "lost %d bytes", i_truncated_bytes );
 929         msg_Dbg( p_demux, "increasing buffer size to %d", tk->i_buffer * 2 );
 930         tk->i_buffer *= 2;
 931         p_tmp = realloc( tk->p_buffer, tk->i_buffer );
 932         if (p_tmp == NULL)
 933         {
 934             msg_Warn( p_demux, "realloc failed" );
 935         }
 936         else
 937         {
 938             tk->p_buffer = (uint8_t*)p_tmp;
 939         }
 940     }
 941     if( i_size > tk->i_buffer )
 942     {
 943         msg_Warn( p_demux, "buffer overflow" );
 944     }
 945     /* FIXME could i_size be > buffer size ? */
 946     if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','1') )
 947     {
 948 #if LIVEMEDIA_LIBRARY_VERSION_INT >= 1081468800
 949         H261VideoRTPSource *h261Source = (H261VideoRTPSource*)tk->rtpSource;
 950         uint32_t header = h261Source->lastSpecialHeader();
 951 #else
 952         uint32_t header = 0;
 953         msg_Warn( p_demux, "need livemedia library >= \"2004.04.09\"" );
 954 #endif
 955         p_block = block_New( p_demux, i_size + 4 );
 956         memcpy( p_block->p_buffer, &header, 4 );
 957         memcpy( p_block->p_buffer + 4, tk->p_buffer, i_size );
 958     }
 959     else if( tk->b_asf )
 960     {
 961         int i_copy = __MIN( p_sys->asfh.i_min_data_packet_size, i_size );
 962         p_block = block_New( p_demux, p_sys->asfh.i_min_data_packet_size );
 963
 964         memcpy( p_block->p_buffer, tk->p_buffer, i_copy );
 965     }
 966     else
 967     {
 968         p_block = block_New( p_demux, i_size );
 969         memcpy( p_block->p_buffer, tk->p_buffer, i_size );
 970     }
 971     if( tk->fmt.i_codec == VLC_FOURCC('h','2','6','1') &&
 972         tk->rtpSource->curPacketMarkerBit() )
 973     {
 974         p_block->i_flags |= BLOCK_FLAG_END_OF_FRAME;
 975     }
 976     //p_block->i_rate = p_input->stream.control.i_rate;
 977
 978     if( i_pts != tk->i_pts && !tk->b_muxed )
 979     {
 980         p_block->i_dts = i_pts;
 981         p_block->i_pts = i_pts;
 982     }
 983     //fprintf( stderr, "tk -> dpts=%lld\n", i_pts - tk->i_pts );
 984
 985     if( tk->b_muxed )
 986     {
 987         stream_DemuxSend( tk->p_out_muxed, p_block );
 988     }
 989     else if( tk->b_asf )
 990     {
 991         stream_DemuxSend( p_sys->p_out_asf, p_block );
 992     }
 993     else
 994     {
 995         es_out_Send( p_demux->out, tk->p_es, p_block );
 996     }
 997
 998     /* warm that's ok */
 999     p_sys->event = 0xff;
1000
1001     /* we have read data */
1002     tk->waiting = 0;
1003
1004     if( i_pts > 0 && !tk->b_muxed )
1005     {
1006         tk->i_pts = i_pts;
1007     }
1008 }
1009
1010 /*****************************************************************************
1011  *
1012  *****************************************************************************/
1013 static void StreamClose( void *p_private )
1014 {
1015     live_track_t   *tk = (live_track_t*)p_private;
1016     demux_t        *p_demux = tk->p_demux;
1017     demux_sys_t    *p_sys = p_demux->p_sys;
1018
1019     fprintf( stderr, "StreamClose\n" );
1020
1021     p_sys->event = 0xff;
1022     p_demux->b_error = VLC_TRUE;
1023 }
1024
1025
1026 /*****************************************************************************
1027  *
1028  *****************************************************************************/
1029 static void TaskInterrupt( void *p_private )
1030 {
1031     demux_t *p_demux = (demux_t*)p_private;
1032
1033     fprintf( stderr, "TaskInterrupt\n" );
1034
1035     /* Avoid lock */
1036     p_demux->p_sys->event = 0xff;
1037 }
1038
1039 /*****************************************************************************
1040  *
1041  *****************************************************************************/
1042 static int b64_decode( char *dest, char *src );
1043
1044 static int ParseASF( demux_t *p_demux )
1045 {
1046     demux_sys_t    *p_sys = p_demux->p_sys;
1047
1048     const char *psz_marker = "a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,";
1049     char *psz_asf = strcasestr( p_sys->p_sdp, psz_marker );
1050     char *psz_end;
1051     block_t *p_header;
1052
1053     /* Parse the asf header */
1054     if( psz_asf == NULL )
1055         return VLC_EGENERIC;
1056
1057     psz_asf += strlen( psz_marker );
1058     psz_asf = strdup( psz_asf );    /* Duplicate it */
1059     psz_end = strchr( psz_asf, '\n' );
1060
1061     while( psz_end > psz_asf && ( *psz_end == '\n' || *psz_end == '\r' ) )
1062         *psz_end-- = '\0';
1063
1064     if( psz_asf >= psz_end )
1065     {
1066         free( psz_asf );
1067         return VLC_EGENERIC;
1068     }
1069
1070     /* Always smaller */
1071     p_header = block_New( p_demux, psz_end - psz_asf );
1072     p_header->i_buffer = b64_decode( (char*)p_header->p_buffer, psz_asf );
1073     fprintf( stderr, "Size=%d Hdrb64=%s\n", p_header->i_buffer, psz_asf );
1074     if( p_header->i_buffer <= 0 )
1075     {
1076         free( psz_asf );
1077         return VLC_EGENERIC;
1078     }
1079
1080     /* Parse it to get packet size */
1081     E_(asf_HeaderParse)( &p_sys->asfh, p_header->p_buffer, p_header->i_buffer );
1082
1083     /* Send it to demuxer */
1084     stream_DemuxSend( p_sys->p_out_asf, p_header );
1085
1086     free( psz_asf );
1087     return VLC_SUCCESS;
1088 }
1089 /*char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";*/
1090 static int b64_decode( char *dest, char *src )
1091 {
1092     const char *dest_start = dest;
1093     int  i_level;
1094     int  last = 0;
1095     int  b64[256] = {
1096         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 00-0F */
1097         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 10-1F */
1098         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63,  /* 20-2F */
1099         52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1,  /* 30-3F */
1100         -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,  /* 40-4F */
1101         15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1,  /* 50-5F */
1102         -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,  /* 60-6F */
1103         41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1,  /* 70-7F */
1104         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 80-8F */
1105         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* 90-9F */
1106         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* A0-AF */
1107         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* B0-BF */
1108         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* C0-CF */
1109         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* D0-DF */
1110         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,  /* E0-EF */
1111         -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1   /* F0-FF */
1112         };
1113
1114     for( i_level = 0; *src != '\0'; src++ )
1115     {
1116         int  c;
1117
1118         c = b64[(unsigned int)*src];
1119         if( c == -1 )
1120         {
1121             continue;
1122         }
1123
1124         switch( i_level )
1125         {
1126             case 0:
1127                 i_level++;
1128                 break;
1129             case 1:
1130                 *dest++ = ( last << 2 ) | ( ( c >> 4)&0x03 );
1131                 i_level++;
1132                 break;
1133             case 2:
1134                 *dest++ = ( ( last << 4 )&0xf0 ) | ( ( c >> 2 )&0x0f );
1135                 i_level++;
1136                 break;
1137             case 3:
1138                 *dest++ = ( ( last &0x03 ) << 6 ) | c;
1139                 i_level = 0;
1140         }
1141         last = c;
1142     }
1143
1144     *dest = '\0';
1145
1146     return dest - dest_start;
1147 }
1148