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

   1
   2 /*****************************************************************************
   3  * mkv.cpp : matroska demuxer
   4  *****************************************************************************
   5  * Copyright (C) 2003-2004 the VideoLAN team
   6  * $Id$
   7  *
   8  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   9  *          Steve Lhomme <steve.lhomme@free.fr>
  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 #include "demux.hpp"
  27
  28 #include "Ebml_parser.hpp"
  29
  30 event_thread_t::event_thread_t(demux_t *p_demux) : p_demux(p_demux)
  31 {
  32     vlc_mutex_init( &lock );
  33     vlc_cond_init( &wait );
  34     is_running = false;
  35 }
  36 event_thread_t::~event_thread_t()
  37 {
  38     ResetPci();
  39     vlc_cond_destroy( &wait );
  40     vlc_mutex_destroy( &lock );
  41 }
  42
  43 void event_thread_t::SetPci(const pci_t *data)
  44 {
  45     vlc_mutex_locker l(&lock);
  46
  47     pci_packet = *data;
  48
  49 #ifndef WORDS_BIGENDIAN
  50     for( uint8_t button = 1; button <= pci_packet.hli.hl_gi.btn_ns; button++) {
  51         btni_t *button_ptr = &(pci_packet.hli.btnit[button-1]);
  52         binary *p_data = (binary*) button_ptr;
  53
  54         uint16 i_x_start = ((p_data[0] & 0x3F) << 4 ) + ( p_data[1] >> 4 );
  55         uint16 i_x_end   = ((p_data[1] & 0x03) << 8 ) + p_data[2];
  56         uint16 i_y_start = ((p_data[3] & 0x3F) << 4 ) + ( p_data[4] >> 4 );
  57         uint16 i_y_end   = ((p_data[4] & 0x03) << 8 ) + p_data[5];
  58         button_ptr->x_start = i_x_start;
  59         button_ptr->x_end   = i_x_end;
  60         button_ptr->y_start = i_y_start;
  61         button_ptr->y_end   = i_y_end;
  62
  63     }
  64     for ( uint8_t i = 0; i<3; i++ )
  65         for ( uint8_t j = 0; j<2; j++ )
  66             pci_packet.hli.btn_colit.btn_coli[i][j] = U32_AT( &pci_packet.hli.btn_colit.btn_coli[i][j] );
  67 #endif
  68     if( !is_running )
  69     {
  70         b_abort = false;
  71         is_running = !vlc_clone( &thread, EventThread, this, VLC_THREAD_PRIORITY_LOW );
  72     }
  73 }
  74 void event_thread_t::ResetPci()
  75 {
  76     if( !is_running )
  77         return;
  78
  79     vlc_mutex_lock( &lock );
  80     b_abort = true;
  81     vlc_cond_signal( &wait );
  82     vlc_mutex_unlock( &lock );
  83
  84     vlc_join( thread, NULL );
  85     is_running = false;
  86 }
  87 int event_thread_t::EventMouse( vlc_object_t *p_this, char const *psz_var,
  88                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
  89 {
  90     VLC_UNUSED( oldval ); VLC_UNUSED( newval );
  91     event_thread_t *p_ev = (event_thread_t *) p_data;
  92     vlc_mutex_lock( &p_ev->lock );
  93     if( psz_var[6] == 'c' )
  94     {
  95         p_ev->b_clicked = true;
  96         msg_Dbg( p_this, "Event Mouse: clicked");
  97     }
  98     else if( psz_var[6] == 'm' )
  99         p_ev->b_moved = true;
 100     vlc_cond_signal( &p_ev->wait );
 101     vlc_mutex_unlock( &p_ev->lock );
 102
 103     return VLC_SUCCESS;
 104 }
 105
 106 int event_thread_t::EventKey( vlc_object_t *p_this, char const *,
 107                               vlc_value_t, vlc_value_t newval, void *p_data )
 108 {
 109     event_thread_t *p_ev = (event_thread_t *) p_data;
 110     vlc_mutex_lock( &p_ev->lock );
 111     p_ev->i_key_action = newval.i_int;
 112     vlc_cond_signal( &p_ev->wait );
 113     vlc_mutex_unlock( &p_ev->lock );
 114     msg_Dbg( p_this, "Event Key");
 115
 116     return VLC_SUCCESS;
 117 }
 118
 119 int event_thread_t::EventInput( vlc_object_t *p_this, char const *,
 120                                 vlc_value_t, vlc_value_t newval, void *p_data )
 121 {
 122     VLC_UNUSED( p_this );
 123     event_thread_t *p_ev = (event_thread_t *) p_data;
 124     vlc_mutex_lock( &p_ev->lock );
 125     if( newval.i_int == INPUT_EVENT_VOUT )
 126     {
 127         p_ev->b_vout |= true;
 128         vlc_cond_signal( &p_ev->wait );
 129     }
 130     vlc_mutex_unlock( &p_ev->lock );
 131
 132     return VLC_SUCCESS;
 133 }
 134
 135 void event_thread_t::EventThread()
 136 {
 137     demux_sys_t    *p_sys = p_demux->p_sys;
 138     vlc_object_t   *p_vout = NULL;
 139     int canc = vlc_savecancel ();
 140
 141     b_moved      = false;
 142     b_clicked    = false;
 143     i_key_action = 0;
 144     b_vout       = true;
 145
 146     /* catch all key event */
 147     var_AddCallback( p_demux->p_libvlc, "key-action", EventKey, this );
 148     /* catch input event */
 149     var_AddCallback( p_sys->p_input, "intf-event", EventInput, this );
 150
 151     /* main loop */
 152     for( ;; )
 153     {
 154         vlc_mutex_lock( &lock );
 155         while( !b_abort && !i_key_action && !b_moved && !b_clicked && !b_vout)
 156             vlc_cond_wait( &wait, &lock );
 157
 158         if( b_abort )
 159         {
 160             vlc_mutex_unlock( &lock );
 161             break;
 162         }
 163
 164         /* KEY part */
 165         if( i_key_action )
 166         {
 167             msg_Dbg( p_demux, "Handle Key Event");
 168
 169             pci_t *pci = &pci_packet;
 170
 171             uint16 i_curr_button = p_sys->dvd_interpretor.GetSPRM( 0x88 );
 172
 173             switch( i_key_action )
 174             {
 175             case ACTIONID_NAV_LEFT:
 176                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 177                 {
 178                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 179                     if ( p_button_ptr->left > 0 && p_button_ptr->left <= pci->hli.hl_gi.btn_ns )
 180                     {
 181                         i_curr_button = p_button_ptr->left;
 182                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 183                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 184                         if ( button_ptr.auto_action_mode )
 185                         {
 186                             vlc_mutex_unlock( &lock );
 187                             vlc_mutex_lock( &p_sys->lock_demuxer );
 188
 189                             // process the button action
 190                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 191
 192                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 193                             vlc_mutex_lock( &lock );
 194                         }
 195                     }
 196                 }
 197                 break;
 198             case ACTIONID_NAV_RIGHT:
 199                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 200                 {
 201                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 202                     if ( p_button_ptr->right > 0 && p_button_ptr->right <= pci->hli.hl_gi.btn_ns )
 203                     {
 204                         i_curr_button = p_button_ptr->right;
 205                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 206                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 207                         if ( button_ptr.auto_action_mode )
 208                         {
 209                             vlc_mutex_unlock( &lock );
 210                             vlc_mutex_lock( &p_sys->lock_demuxer );
 211
 212                             // process the button action
 213                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 214
 215                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 216                             vlc_mutex_lock( &lock );
 217                         }
 218                     }
 219                 }
 220                 break;
 221             case ACTIONID_NAV_UP:
 222                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 223                 {
 224                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 225                     if ( p_button_ptr->up > 0 && p_button_ptr->up <= pci->hli.hl_gi.btn_ns )
 226                     {
 227                         i_curr_button = p_button_ptr->up;
 228                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 229                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 230                         if ( button_ptr.auto_action_mode )
 231                         {
 232                             vlc_mutex_unlock( &lock );
 233                             vlc_mutex_lock( &p_sys->lock_demuxer );
 234
 235                             // process the button action
 236                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 237
 238                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 239                             vlc_mutex_lock( &lock );
 240                         }
 241                     }
 242                 }
 243                 break;
 244             case ACTIONID_NAV_DOWN:
 245                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 246                 {
 247                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 248                     if ( p_button_ptr->down > 0 && p_button_ptr->down <= pci->hli.hl_gi.btn_ns )
 249                     {
 250                         i_curr_button = p_button_ptr->down;
 251                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 252                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 253                         if ( button_ptr.auto_action_mode )
 254                         {
 255                             vlc_mutex_unlock( &lock );
 256                             vlc_mutex_lock( &p_sys->lock_demuxer );
 257
 258                             // process the button action
 259                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 260
 261                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 262                             vlc_mutex_lock( &lock );
 263                         }
 264                     }
 265                 }
 266                 break;
 267             case ACTIONID_NAV_ACTIVATE:
 268                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 269                 {
 270                     btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 271
 272                     vlc_mutex_unlock( &lock );
 273                     vlc_mutex_lock( &p_sys->lock_demuxer );
 274
 275                     // process the button action
 276                     p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 277
 278                     vlc_mutex_unlock( &p_sys->lock_demuxer );
 279                     vlc_mutex_lock( &lock );
 280                 }
 281                 break;
 282             default:
 283                 break;
 284             }
 285             i_key_action = 0;
 286         }
 287
 288         /* MOUSE part */
 289         if( p_vout && ( b_moved || b_clicked ) )
 290         {
 291             int x, y;
 292
 293             var_GetCoords( p_vout, "mouse-moved", &x, &y );
 294             pci_t *pci = &pci_packet;
 295
 296             if( b_clicked )
 297             {
 298                 int32_t button;
 299                 int32_t best,dist,d;
 300                 int32_t mx,my,dx,dy;
 301
 302                 msg_Dbg( p_demux, "Handle Mouse Event: Mouse clicked x(%d)*y(%d)", x, y);
 303
 304                 // get current button
 305                 best = 0;
 306                 dist = 0x08000000; /* >> than  (720*720)+(567*567); */
 307                 for(button = 1; button <= pci->hli.hl_gi.btn_ns; button++)
 308                 {
 309                     btni_t *button_ptr = &(pci->hli.btnit[button-1]);
 310
 311                     if(((unsigned)x >= button_ptr->x_start)
 312                      && ((unsigned)x <= button_ptr->x_end)
 313                      && ((unsigned)y >= button_ptr->y_start)
 314                      && ((unsigned)y <= button_ptr->y_end))
 315                     {
 316                         mx = (button_ptr->x_start + button_ptr->x_end)/2;
 317                         my = (button_ptr->y_start + button_ptr->y_end)/2;
 318                         dx = mx - x;
 319                         dy = my - y;
 320                         d = (dx*dx) + (dy*dy);
 321                         /* If the mouse is within the button and the mouse is closer
 322                         * to the center of this button then it is the best choice. */
 323                         if(d < dist) {
 324                             dist = d;
 325                             best = button;
 326                         }
 327                     }
 328                 }
 329
 330                 if ( best != 0)
 331                 {
 332                     btni_t button_ptr = pci->hli.btnit[best-1];
 333                     uint16 i_curr_button = p_sys->dvd_interpretor.GetSPRM( 0x88 );
 334
 335                     msg_Dbg( &p_sys->demuxer, "Clicked button %d", best );
 336                     vlc_mutex_unlock( &lock );
 337                     vlc_mutex_lock( &p_sys->lock_demuxer );
 338
 339                     // process the button action
 340                     p_sys->dvd_interpretor.SetSPRM( 0x88, best );
 341                     p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 342
 343                     msg_Dbg( &p_sys->demuxer, "Processed button %d", best );
 344
 345                     // select new button
 346                     if ( best != i_curr_button )
 347                     {
 348                         uint32_t i_palette;
 349
 350                         if(button_ptr.btn_coln != 0) {
 351                             i_palette = pci->hli.btn_colit.btn_coli[button_ptr.btn_coln-1][1];
 352                         } else {
 353                             i_palette = 0;
 354                         }
 355
 356                         for( int i = 0; i < 4; i++ )
 357                         {
 358                             uint32_t i_yuv = 0xFF;//p_sys->clut[(hl.palette>>(16+i*4))&0x0f];
 359                             uint8_t i_alpha = (i_palette>>(i*4))&0x0f;
 360                             i_alpha = i_alpha == 0xf ? 0xff : i_alpha << 4;
 361
 362                             p_sys->palette[i][0] = (i_yuv >> 16) & 0xff;
 363                             p_sys->palette[i][1] = (i_yuv >> 0) & 0xff;
 364                             p_sys->palette[i][2] = (i_yuv >> 8) & 0xff;
 365                             p_sys->palette[i][3] = i_alpha;
 366                         }
 367
 368                         vlc_global_lock( VLC_HIGHLIGHT_MUTEX );
 369                         var_SetInteger( p_sys->p_input, "x-start",
 370                                         button_ptr.x_start );
 371                         var_SetInteger( p_sys->p_input, "x-end",
 372                                         button_ptr.x_end );
 373                         var_SetInteger( p_sys->p_input, "y-start",
 374                                         button_ptr.y_start );
 375                         var_SetInteger( p_sys->p_input, "y-end",
 376                                         button_ptr.y_end );
 377                         var_SetAddress( p_sys->p_input, "menu-palette",
 378                                         p_sys->palette );
 379                         var_SetBool( p_sys->p_input, "highlight", true );
 380                         vlc_global_unlock( VLC_HIGHLIGHT_MUTEX );
 381                     }
 382                     vlc_mutex_unlock( &p_sys->lock_demuxer );
 383                     vlc_mutex_lock( &lock );
 384                 }
 385             }
 386             else if( b_moved )
 387             {
 388 //                dvdnav_mouse_select( NULL, pci, x, y );
 389             }
 390
 391             b_moved = false;
 392             b_clicked = false;
 393         }
 394
 395         b_vout = false;
 396         vlc_mutex_unlock( &lock );
 397
 398         /* Always check vout */
 399         if( p_vout && !vlc_object_alive (p_vout) )
 400         {
 401             var_DelCallback( p_vout, "mouse-moved", EventMouse, this );
 402             var_DelCallback( p_vout, "mouse-clicked", EventMouse, this );
 403             vlc_object_release( p_vout );
 404             p_vout = NULL;
 405         }
 406
 407         else if( p_vout == NULL )
 408         {
 409             p_vout = (vlc_object_t*) input_GetVout(p_sys->p_input);
 410             if( p_vout)
 411             {
 412                 var_AddCallback( p_vout, "mouse-moved", EventMouse, this );
 413                 var_AddCallback( p_vout, "mouse-clicked", EventMouse, this );
 414             }
 415         }
 416     }
 417
 418     /* Release callback */
 419     if( p_vout )
 420     {
 421         var_DelCallback( p_vout, "mouse-moved", EventMouse, this );
 422         var_DelCallback( p_vout, "mouse-clicked", EventMouse, this );
 423         vlc_object_release( p_vout );
 424     }
 425     var_DelCallback( p_sys->p_input, "intf-event", EventInput, this );
 426     var_DelCallback( p_demux->p_libvlc, "key-action", EventKey, this );
 427
 428     vlc_restorecancel (canc);
 429 }
 430
 431 void *event_thread_t::EventThread(void *data)
 432 {
 433     static_cast<event_thread_t*>(data)->EventThread();
 434     return NULL;
 435 }
 436
 437
 438 demux_sys_t::~demux_sys_t()
 439 {
 440     CleanUi();
 441     size_t i;
 442     for ( i=0; i<streams.size(); i++ )
 443         delete streams[i];
 444     for ( i=0; i<opened_segments.size(); i++ )
 445         delete opened_segments[i];
 446     for ( i=0; i<used_segments.size(); i++ )
 447         delete used_segments[i];
 448     for ( i=0; i<stored_attachments.size(); i++ )
 449         delete stored_attachments[i];
 450     if( meta ) vlc_meta_Delete( meta );
 451
 452     while( titles.size() )
 453     { vlc_input_title_Delete( titles.back() ); titles.pop_back();}
 454
 455     vlc_mutex_destroy( &lock_demuxer );
 456 }
 457
 458
 459 matroska_stream_c *demux_sys_t::AnalyseAllSegmentsFound( demux_t *p_demux, EbmlStream *p_estream, bool b_initial )
 460 {
 461     int i_upper_lvl = 0;
 462     EbmlElement *p_l0, *p_l1, *p_l2;
 463     bool b_keep_stream = false, b_keep_segment;
 464
 465     // verify the EBML Header
 466     p_l0 = p_estream->FindNextID(EBML_INFO(EbmlHead), 0xFFFFFFFFL);
 467     if (p_l0 == NULL)
 468     {
 469         msg_Err( p_demux, "No EBML header found" );
 470         return NULL;
 471     }
 472
 473     // verify we can read this Segment, we only support Matroska version 1 for now
 474     p_l0->Read(*p_estream, EBML_CLASS_CONTEXT(EbmlHead), i_upper_lvl, p_l0, true);
 475
 476     EDocType doc_type = GetChild<EDocType>(*static_cast<EbmlHead*>(p_l0));
 477     if (std::string(doc_type) != "matroska" && std::string(doc_type) != "webm" )
 478     {
 479         msg_Err( p_demux, "Not a Matroska file : DocType = %s ", std::string(doc_type).c_str());
 480         return NULL;
 481     }
 482
 483     EDocTypeReadVersion doc_read_version = GetChild<EDocTypeReadVersion>(*static_cast<EbmlHead*>(p_l0));
 484     if (uint64(doc_read_version) > 2)
 485     {
 486         msg_Err( p_demux, "matroska file needs version %"PRId64" but only versions 1 & 2 supported", uint64(doc_read_version));
 487         return NULL;
 488     }
 489
 490     delete p_l0;
 491
 492
 493     // find all segments in this file
 494     p_l0 = p_estream->FindNextID(EBML_INFO(KaxSegment), 0xFFFFFFFFFLL);
 495     if (p_l0 == NULL)
 496     {
 497         return NULL;
 498     }
 499
 500     matroska_stream_c *p_stream1 = new matroska_stream_c();
 501
 502     while (p_l0 != 0)
 503     {
 504         if ( MKV_IS_ID( p_l0, KaxSegment) )
 505         {
 506             EbmlParser  *ep;
 507             matroska_segment_c *p_segment1 = new matroska_segment_c( *this, *p_estream );
 508             b_keep_segment = b_initial;
 509
 510             ep = new EbmlParser(p_estream, p_l0, &demuxer );
 511             p_segment1->ep = ep;
 512             p_segment1->segment = (KaxSegment*)p_l0;
 513
 514             while ((p_l1 = ep->Get()))
 515             {
 516                 if (MKV_IS_ID(p_l1, KaxInfo))
 517                 {
 518                     // find the families of this segment
 519                     KaxInfo *p_info = static_cast<KaxInfo*>(p_l1);
 520
 521                     p_info->Read(*p_estream, EBML_CLASS_CONTEXT(KaxInfo), i_upper_lvl, p_l2, true);
 522                     for( size_t i = 0; i < p_info->ListSize(); i++ )
 523                     {
 524                         EbmlElement *l = (*p_info)[i];
 525
 526                         if( MKV_IS_ID( l, KaxSegmentUID ) )
 527                         {
 528                             KaxSegmentUID *p_uid = static_cast<KaxSegmentUID*>(l);
 529                             b_keep_segment = (FindSegment( *p_uid ) == NULL);
 530                             if ( !b_keep_segment )
 531                                 break; // this segment is already known
 532                             delete p_segment1->p_segment_uid;
 533                             p_segment1->p_segment_uid = new KaxSegmentUID(*p_uid);
 534                         }
 535                         else if( MKV_IS_ID( l, KaxPrevUID ) )
 536                         {
 537                             p_segment1->p_prev_segment_uid = new KaxPrevUID( *static_cast<KaxPrevUID*>(l) );
 538                         }
 539                         else if( MKV_IS_ID( l, KaxNextUID ) )
 540                         {
 541                             p_segment1->p_next_segment_uid = new KaxNextUID( *static_cast<KaxNextUID*>(l) );
 542                         }
 543                         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 544                         {
 545                             KaxSegmentFamily *p_fam = new KaxSegmentFamily( *static_cast<KaxSegmentFamily*>(l) );
 546                             p_segment1->families.push_back( p_fam );
 547                         }
 548                     }
 549                     if( b_keep_segment || !p_segment1->p_segment_uid )
 550                         opened_segments.push_back( p_segment1 );
 551                     break;
 552                 }
 553             }
 554             if ( b_keep_segment )
 555             {
 556                 b_keep_stream = true;
 557                 p_stream1->segments.push_back( p_segment1 );
 558             }
 559             else
 560             {
 561                 p_segment1->segment = NULL;
 562                 delete p_segment1;
 563             }
 564         }
 565         if (p_l0->IsFiniteSize() )
 566         {
 567             p_l0->SkipData(*p_estream, KaxMatroska_Context);
 568             p_l0 = p_estream->FindNextID(EBML_INFO(KaxSegment), 0xFFFFFFFFL);
 569         }
 570         else
 571         {
 572             p_l0 = NULL;
 573         }
 574     }
 575
 576     if ( !b_keep_stream )
 577     {
 578         delete p_stream1;
 579         p_stream1 = NULL;
 580     }
 581
 582     return p_stream1;
 583 }
 584
 585 void demux_sys_t::InitUi()
 586 {
 587     msg_Dbg( &demuxer, "Starting the UI Hook" );
 588
 589     /* FIXME hack hack hack hack FIXME */
 590     /* Get p_input and create variable */
 591     p_input = demux_GetParentInput( &demuxer );
 592     if( p_input )
 593     {
 594         var_Create( p_input, "x-start", VLC_VAR_INTEGER );
 595         var_Create( p_input, "y-start", VLC_VAR_INTEGER );
 596         var_Create( p_input, "x-end", VLC_VAR_INTEGER );
 597         var_Create( p_input, "y-end", VLC_VAR_INTEGER );
 598         var_Create( p_input, "color", VLC_VAR_ADDRESS );
 599         var_Create( p_input, "menu-palette", VLC_VAR_ADDRESS );
 600         var_Create( p_input, "highlight", VLC_VAR_BOOL );
 601     }
 602
 603     /* Now create our event thread catcher */
 604     p_ev = new event_thread_t(&demuxer);
 605 }
 606
 607 void demux_sys_t::CleanUi()
 608 {
 609     delete p_ev;
 610     p_ev = NULL;
 611
 612     if( p_input )
 613     {
 614         var_Destroy( p_input, "highlight" );
 615         var_Destroy( p_input, "x-start" );
 616         var_Destroy( p_input, "x-end" );
 617         var_Destroy( p_input, "y-start" );
 618         var_Destroy( p_input, "y-end" );
 619         var_Destroy( p_input, "color" );
 620         var_Destroy( p_input, "menu-palette" );
 621
 622         vlc_object_release( p_input );
 623     }
 624
 625     msg_Dbg( &demuxer, "Stopping the UI Hook" );
 626 }
 627
 628 void demux_sys_t::PreloadFamily( const matroska_segment_c & of_segment )
 629 {
 630     for (size_t i=0; i<opened_segments.size(); i++)
 631     {
 632         opened_segments[i]->PreloadFamily( of_segment );
 633     }
 634 }
 635
 636 // preload all the linked segments for all preloaded segments
 637 bool demux_sys_t::PreloadLinked()
 638 {
 639     size_t i, j;
 640     virtual_segment_c *p_seg;
 641
 642     p_current_segment = VirtualFromSegments( &opened_segments );
 643     if ( !p_current_segment )
 644         return false;
 645
 646     used_segments.push_back( p_current_segment );
 647
 648     // publish all editions of all usable segment
 649     for ( i=0; i< used_segments.size(); i++ )
 650     {
 651         p_seg = used_segments[i];
 652         if ( p_seg->Editions() != NULL )
 653         {
 654             input_title_t *p_title = vlc_input_title_New();
 655             p_seg->i_sys_title = i;
 656             int i_chapters;
 657
 658             // TODO use a name for each edition, let the TITLE deal with a codec name
 659             for ( j=0; j<p_seg->Editions()->size(); j++ )
 660             {
 661                 if ( p_title->psz_name == NULL )
 662                 {
 663                     const char* psz_tmp = (*p_seg->Editions())[j]->GetMainName().c_str();
 664                     if( *psz_tmp != '\0' )
 665                         p_title->psz_name = strdup( psz_tmp );
 666                 }
 667
 668                 i_chapters = 0;
 669                 ( *p_seg->Editions() )[j]->PublishChapters( *p_title, i_chapters, 0 );
 670             }
 671
 672             // create a name if there is none
 673             if ( p_title->psz_name == NULL )
 674             {
 675                 if( asprintf(&(p_title->psz_name), "%s %d", N_("Segment"), (int)i) == -1 )
 676                     p_title->psz_name = NULL;
 677             }
 678
 679             titles.push_back( p_title );
 680         }
 681     }
 682
 683     // TODO decide which segment should be first used (VMG for DVD)
 684
 685     return true;
 686 }
 687
 688 virtual_segment_c *demux_sys_t::VirtualFromSegments( std::vector<matroska_segment_c*> *p_segments ) const
 689 {
 690     if ( p_segments->empty() )
 691         return NULL;
 692     virtual_segment_c *p_result = new virtual_segment_c( p_segments );
 693     return p_result;
 694 }
 695
 696 bool demux_sys_t::PreparePlayback( virtual_segment_c *p_new_segment )
 697 {
 698     if ( p_new_segment != NULL && p_new_segment != p_current_segment )
 699     {
 700         if ( p_current_segment != NULL && p_current_segment->CurrentSegment() != NULL )
 701             p_current_segment->CurrentSegment()->UnSelect();
 702
 703         p_current_segment = p_new_segment;
 704         i_current_title = p_new_segment->i_sys_title;
 705     }
 706     if( !p_current_segment->CurrentSegment() )
 707         return false;
 708     if( !p_current_segment->CurrentSegment()->b_cues )
 709         msg_Warn( &p_current_segment->CurrentSegment()->sys.demuxer, "no cues/empty cues found->seek won't be precise" );
 710
 711     f_duration = p_current_segment->Duration();
 712
 713     /* add information */
 714     p_current_segment->CurrentSegment()->InformationCreate( );
 715     p_current_segment->CurrentSegment()->Select( 0 );
 716
 717     return true;
 718 }
 719
 720 void demux_sys_t::JumpTo( virtual_segment_c & vsegment, virtual_chapter_c * p_chapter )
 721 {
 722     // if the segment is not part of the current segment, select the new one
 723     if ( &vsegment != p_current_segment )
 724     {
 725         PreparePlayback( &vsegment );
 726     }
 727
 728     if ( p_chapter )
 729     {
 730         if ( !p_chapter->p_chapter || !p_chapter->p_chapter->Enter( true ) )
 731         {
 732             // jump to the location in the found segment
 733             vsegment.Seek( demuxer, p_chapter->i_virtual_start_time, -1, p_chapter, -1 );
 734         }
 735     }
 736
 737 }
 738
 739 matroska_segment_c *demux_sys_t::FindSegment( const EbmlBinary & uid ) const
 740 {
 741     for (size_t i=0; i<opened_segments.size(); i++)
 742     {
 743         if ( *opened_segments[i]->p_segment_uid == uid )
 744             return opened_segments[i];
 745     }
 746     return NULL;
 747 }
 748
 749 virtual_chapter_c *demux_sys_t::BrowseCodecPrivate( unsigned int codec_id,
 750                                         bool (*match)(const chapter_codec_cmds_c &data, const void *p_cookie, size_t i_cookie_size ),
 751                                         const void *p_cookie,
 752                                         size_t i_cookie_size,
 753                                         virtual_segment_c * &p_segment_found )
 754 {
 755     virtual_chapter_c *p_result = NULL;
 756     for (size_t i=0; i<used_segments.size(); i++)
 757     {
 758         p_result = used_segments[i]->BrowseCodecPrivate( codec_id, match, p_cookie, i_cookie_size );
 759         if ( p_result != NULL )
 760         {
 761             p_segment_found = used_segments[i];
 762             break;
 763         }
 764     }
 765     return p_result;
 766 }
 767
 768 virtual_chapter_c *demux_sys_t::FindChapter( int64_t i_find_uid, virtual_segment_c * & p_segment_found )
 769 {
 770     virtual_chapter_c *p_result = NULL;
 771     for (size_t i=0; i<used_segments.size(); i++)
 772     {
 773         p_result = used_segments[i]->FindChapter( i_find_uid );
 774         if ( p_result != NULL )
 775         {
 776             p_segment_found = used_segments[i];
 777             break;
 778         }
 779     }
 780     return p_result;
 781 }
 782