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 demux_sys_t::~demux_sys_t()
  31 {
  32     StopUiThread();
  33     size_t i;
  34     for ( i=0; i<streams.size(); i++ )
  35         delete streams[i];
  36     for ( i=0; i<opened_segments.size(); i++ )
  37         delete opened_segments[i];
  38     for ( i=0; i<used_segments.size(); i++ )
  39         delete used_segments[i];
  40     for ( i=0; i<stored_attachments.size(); i++ )
  41         delete stored_attachments[i];
  42     if( meta ) vlc_meta_Delete( meta );
  43
  44     while( titles.size() )
  45     { vlc_input_title_Delete( titles.back() ); titles.pop_back();}
  46
  47     vlc_mutex_destroy( &lock_demuxer );
  48 }
  49
  50
  51 matroska_stream_c *demux_sys_t::AnalyseAllSegmentsFound( demux_t *p_demux, EbmlStream *p_estream, bool b_initial )
  52 {
  53     int i_upper_lvl = 0;
  54     EbmlElement *p_l0, *p_l1, *p_l2;
  55     bool b_keep_stream = false, b_keep_segment;
  56
  57     // verify the EBML Header
  58     p_l0 = p_estream->FindNextID(EbmlHead::ClassInfos, 0xFFFFFFFFL);
  59     if (p_l0 == NULL)
  60     {
  61         msg_Err( p_demux, "No EBML header found" );
  62         return NULL;
  63     }
  64
  65     // verify we can read this Segment, we only support Matroska version 1 for now
  66     p_l0->Read(*p_estream, EbmlHead::ClassInfos.Context, i_upper_lvl, p_l0, true);
  67
  68     EDocType doc_type = GetChild<EDocType>(*static_cast<EbmlHead*>(p_l0));
  69     if (std::string(doc_type) != "matroska" && std::string(doc_type) != "webm" )
  70     {
  71         msg_Err( p_demux, "Not a Matroska file : DocType = %s ", std::string(doc_type).c_str());
  72         return NULL;
  73     }
  74
  75     EDocTypeReadVersion doc_read_version = GetChild<EDocTypeReadVersion>(*static_cast<EbmlHead*>(p_l0));
  76     if (uint64(doc_read_version) > 2)
  77     {
  78         msg_Err( p_demux, "This matroska file is needs version %"PRId64" and this VLC only supports version 1 & 2", uint64(doc_read_version));
  79         return NULL;
  80     }
  81
  82     delete p_l0;
  83
  84
  85     // find all segments in this file
  86     p_l0 = p_estream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFFLL);
  87     if (p_l0 == NULL)
  88     {
  89         return NULL;
  90     }
  91
  92     matroska_stream_c *p_stream1 = new matroska_stream_c( *this );
  93
  94     while (p_l0 != 0)
  95     {
  96         if (EbmlId(*p_l0) == KaxSegment::ClassInfos.GlobalId)
  97         {
  98             EbmlParser  *ep;
  99             matroska_segment_c *p_segment1 = new matroska_segment_c( *this, *p_estream );
 100             b_keep_segment = b_initial;
 101
 102             ep = new EbmlParser(p_estream, p_l0, &demuxer );
 103             p_segment1->ep = ep;
 104             p_segment1->segment = (KaxSegment*)p_l0;
 105
 106             while ((p_l1 = ep->Get()))
 107             {
 108                 if (MKV_IS_ID(p_l1, KaxInfo))
 109                 {
 110                     // find the families of this segment
 111                     KaxInfo *p_info = static_cast<KaxInfo*>(p_l1);
 112
 113                     p_info->Read(*p_estream, KaxInfo::ClassInfos.Context, i_upper_lvl, p_l2, true);
 114                     for( size_t i = 0; i < p_info->ListSize(); i++ )
 115                     {
 116                         EbmlElement *l = (*p_info)[i];
 117
 118                         if( MKV_IS_ID( l, KaxSegmentUID ) )
 119                         {
 120                             KaxSegmentUID *p_uid = static_cast<KaxSegmentUID*>(l);
 121                             b_keep_segment = (FindSegment( *p_uid ) == NULL);
 122                             if ( !b_keep_segment )
 123                                 break; // this segment is already known
 124                             opened_segments.push_back( p_segment1 );
 125                             delete p_segment1->p_segment_uid;
 126                             p_segment1->p_segment_uid = new KaxSegmentUID(*p_uid);
 127                         }
 128                         else if( MKV_IS_ID( l, KaxPrevUID ) )
 129                         {
 130                             p_segment1->p_prev_segment_uid = new KaxPrevUID( *static_cast<KaxPrevUID*>(l) );
 131                         }
 132                         else if( MKV_IS_ID( l, KaxNextUID ) )
 133                         {
 134                             p_segment1->p_next_segment_uid = new KaxNextUID( *static_cast<KaxNextUID*>(l) );
 135                         }
 136                         else if( MKV_IS_ID( l, KaxSegmentFamily ) )
 137                         {
 138                             KaxSegmentFamily *p_fam = new KaxSegmentFamily( *static_cast<KaxSegmentFamily*>(l) );
 139                             p_segment1->families.push_back( p_fam );
 140                         }
 141                     }
 142                     break;
 143                 }
 144             }
 145             if ( b_keep_segment )
 146             {
 147                 b_keep_stream = true;
 148                 p_stream1->segments.push_back( p_segment1 );
 149             }
 150             else
 151             {
 152                 p_segment1->segment = NULL;
 153                 delete p_segment1;
 154             }
 155         }
 156         if (p_l0->IsFiniteSize() )
 157         {
 158             p_l0->SkipData(*p_estream, KaxMatroska_Context);
 159             p_l0 = p_estream->FindNextID(KaxSegment::ClassInfos, 0xFFFFFFFFL);
 160         }
 161         else
 162         {
 163             p_l0 = NULL;
 164         }
 165     }
 166
 167     if ( !b_keep_stream )
 168     {
 169         delete p_stream1;
 170         p_stream1 = NULL;
 171     }
 172
 173     return p_stream1;
 174 }
 175
 176 void demux_sys_t::StartUiThread()
 177 {
 178     if ( !b_ui_hooked )
 179     {
 180         msg_Dbg( &demuxer, "Starting the UI Hook" );
 181         b_ui_hooked = true;
 182         /* FIXME hack hack hack hack FIXME */
 183         /* Get p_input and create variable */
 184         p_input = (input_thread_t *) vlc_object_find( &demuxer, VLC_OBJECT_INPUT, FIND_PARENT );
 185         var_Create( p_input, "x-start", VLC_VAR_INTEGER );
 186         var_Create( p_input, "y-start", VLC_VAR_INTEGER );
 187         var_Create( p_input, "x-end", VLC_VAR_INTEGER );
 188         var_Create( p_input, "y-end", VLC_VAR_INTEGER );
 189         var_Create( p_input, "color", VLC_VAR_ADDRESS );
 190         var_Create( p_input, "menu-palette", VLC_VAR_ADDRESS );
 191         var_Create( p_input, "highlight", VLC_VAR_BOOL );
 192         var_Create( p_input, "highlight-mutex", VLC_VAR_MUTEX );
 193
 194         /* Now create our event thread catcher */
 195         p_ev = (event_thread_t *) vlc_object_create( &demuxer, sizeof( event_thread_t ) );
 196         p_ev->p_demux = &demuxer;
 197         p_ev->b_die = false;
 198         vlc_mutex_init( &p_ev->lock );
 199         vlc_thread_create( p_ev, "mkv event thread handler", EventThread,
 200                         VLC_THREAD_PRIORITY_LOW );
 201     }
 202 }
 203
 204 void demux_sys_t::StopUiThread()
 205 {
 206     if ( b_ui_hooked )
 207     {
 208         vlc_object_kill( p_ev );
 209         vlc_thread_join( p_ev );
 210         vlc_object_release( p_ev );
 211
 212         p_ev = NULL;
 213
 214         var_Destroy( p_input, "highlight-mutex" );
 215         var_Destroy( p_input, "highlight" );
 216         var_Destroy( p_input, "x-start" );
 217         var_Destroy( p_input, "x-end" );
 218         var_Destroy( p_input, "y-start" );
 219         var_Destroy( p_input, "y-end" );
 220         var_Destroy( p_input, "color" );
 221         var_Destroy( p_input, "menu-palette" );
 222
 223         vlc_object_release( p_input );
 224
 225         msg_Dbg( &demuxer, "Stopping the UI Hook" );
 226     }
 227     b_ui_hooked = false;
 228 }
 229
 230 int demux_sys_t::EventMouse( vlc_object_t *p_this, char const *psz_var,
 231                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
 232 {
 233     event_thread_t *p_ev = (event_thread_t *) p_data;
 234     vlc_mutex_lock( &p_ev->lock );
 235     if( psz_var[6] == 'c' )
 236     {
 237         p_ev->b_clicked = true;
 238         msg_Dbg( p_this, "Event Mouse: clicked");
 239     }
 240     else if( psz_var[6] == 'm' )
 241         p_ev->b_moved = true;
 242     vlc_mutex_unlock( &p_ev->lock );
 243
 244     return VLC_SUCCESS;
 245 }
 246
 247 int demux_sys_t::EventKey( vlc_object_t *p_this, char const *,
 248                            vlc_value_t, vlc_value_t newval, void *p_data )
 249 {
 250     event_thread_t *p_ev = (event_thread_t *) p_data;
 251     vlc_mutex_lock( &p_ev->lock );
 252     p_ev->i_key_action = newval.i_int;
 253     vlc_mutex_unlock( &p_ev->lock );
 254     msg_Dbg( p_this, "Event Key");
 255
 256     return VLC_SUCCESS;
 257 }
 258
 259 void * demux_sys_t::EventThread( vlc_object_t *p_this )
 260 {
 261     event_thread_t *p_ev = (event_thread_t*)p_this;
 262     demux_sys_t    *p_sys = p_ev->p_demux->p_sys;
 263     vlc_object_t   *p_vout = NULL;
 264     int canc = vlc_savecancel ();
 265
 266     p_ev->b_moved   = false;
 267     p_ev->b_clicked = false;
 268     p_ev->i_key_action = 0;
 269
 270     /* catch all key event */
 271     var_AddCallback( p_ev->p_libvlc, "key-action", EventKey, p_ev );
 272
 273     /* main loop */
 274     while( vlc_object_alive (p_ev) )
 275     {
 276         if ( !p_sys->b_pci_packet_set )
 277         {
 278             /* Wait 100ms */
 279             msleep( 100000 );
 280             continue;
 281         }
 282
 283         bool b_activated = false;
 284
 285         /* KEY part */
 286         if( p_ev->i_key_action )
 287         {
 288             msg_Dbg( p_ev->p_demux, "Handle Key Event");
 289
 290             vlc_mutex_lock( &p_ev->lock );
 291
 292             pci_t *pci = (pci_t *) &p_sys->pci_packet;
 293
 294             uint16 i_curr_button = p_sys->dvd_interpretor.GetSPRM( 0x88 );
 295
 296             switch( p_ev->i_key_action )
 297             {
 298             case ACTIONID_NAV_LEFT:
 299                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 300                 {
 301                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 302                     if ( p_button_ptr->left > 0 && p_button_ptr->left <= pci->hli.hl_gi.btn_ns )
 303                     {
 304                         i_curr_button = p_button_ptr->left;
 305                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 306                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 307                         if ( button_ptr.auto_action_mode )
 308                         {
 309                             vlc_mutex_unlock( &p_ev->lock );
 310                             vlc_mutex_lock( &p_sys->lock_demuxer );
 311
 312                             // process the button action
 313                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 314
 315                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 316                             vlc_mutex_lock( &p_ev->lock );
 317                         }
 318                     }
 319                 }
 320                 break;
 321             case ACTIONID_NAV_RIGHT:
 322                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 323                 {
 324                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 325                     if ( p_button_ptr->right > 0 && p_button_ptr->right <= pci->hli.hl_gi.btn_ns )
 326                     {
 327                         i_curr_button = p_button_ptr->right;
 328                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 329                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 330                         if ( button_ptr.auto_action_mode )
 331                         {
 332                             vlc_mutex_unlock( &p_ev->lock );
 333                             vlc_mutex_lock( &p_sys->lock_demuxer );
 334
 335                             // process the button action
 336                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 337
 338                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 339                             vlc_mutex_lock( &p_ev->lock );
 340                         }
 341                     }
 342                 }
 343                 break;
 344             case ACTIONID_NAV_UP:
 345                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 346                 {
 347                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 348                     if ( p_button_ptr->up > 0 && p_button_ptr->up <= pci->hli.hl_gi.btn_ns )
 349                     {
 350                         i_curr_button = p_button_ptr->up;
 351                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 352                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 353                         if ( button_ptr.auto_action_mode )
 354                         {
 355                             vlc_mutex_unlock( &p_ev->lock );
 356                             vlc_mutex_lock( &p_sys->lock_demuxer );
 357
 358                             // process the button action
 359                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 360
 361                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 362                             vlc_mutex_lock( &p_ev->lock );
 363                         }
 364                     }
 365                 }
 366                 break;
 367             case ACTIONID_NAV_DOWN:
 368                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 369                 {
 370                     btni_t *p_button_ptr = &(pci->hli.btnit[i_curr_button-1]);
 371                     if ( p_button_ptr->down > 0 && p_button_ptr->down <= pci->hli.hl_gi.btn_ns )
 372                     {
 373                         i_curr_button = p_button_ptr->down;
 374                         p_sys->dvd_interpretor.SetSPRM( 0x88, i_curr_button );
 375                         btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 376                         if ( button_ptr.auto_action_mode )
 377                         {
 378                             vlc_mutex_unlock( &p_ev->lock );
 379                             vlc_mutex_lock( &p_sys->lock_demuxer );
 380
 381                             // process the button action
 382                             p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 383
 384                             vlc_mutex_unlock( &p_sys->lock_demuxer );
 385                             vlc_mutex_lock( &p_ev->lock );
 386                         }
 387                     }
 388                 }
 389                 break;
 390             case ACTIONID_NAV_ACTIVATE:
 391                 b_activated = true;
 392
 393                 if ( i_curr_button > 0 && i_curr_button <= pci->hli.hl_gi.btn_ns )
 394                 {
 395                     btni_t button_ptr = pci->hli.btnit[i_curr_button-1];
 396
 397                     vlc_mutex_unlock( &p_ev->lock );
 398                     vlc_mutex_lock( &p_sys->lock_demuxer );
 399
 400                     // process the button action
 401                     p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 402
 403                     vlc_mutex_unlock( &p_sys->lock_demuxer );
 404                     vlc_mutex_lock( &p_ev->lock );
 405                 }
 406                 break;
 407             default:
 408                 break;
 409             }
 410             p_ev->i_key_action = 0;
 411             vlc_mutex_unlock( &p_ev->lock );
 412         }
 413
 414         /* MOUSE part */
 415         if( p_vout && ( p_ev->b_moved || p_ev->b_clicked ) )
 416         {
 417             int x, y;
 418
 419             var_GetCoords( p_vout, "mouse-moved", &x, &y );
 420             vlc_mutex_lock( &p_ev->lock );
 421             pci_t *pci = (pci_t *) &p_sys->pci_packet;
 422
 423             if( p_ev->b_clicked )
 424             {
 425                 int32_t button;
 426                 int32_t best,dist,d;
 427                 int32_t mx,my,dx,dy;
 428
 429                 msg_Dbg( p_ev->p_demux, "Handle Mouse Event: Mouse clicked x(%d)*y(%d)", x, y);
 430
 431                 b_activated = true;
 432                 // get current button
 433                 best = 0;
 434                 dist = 0x08000000; /* >> than  (720*720)+(567*567); */
 435                 for(button = 1; button <= pci->hli.hl_gi.btn_ns; button++)
 436                 {
 437                     btni_t *button_ptr = &(pci->hli.btnit[button-1]);
 438
 439                     if(((unsigned)x >= button_ptr->x_start)
 440                      && ((unsigned)x <= button_ptr->x_end)
 441                      && ((unsigned)y >= button_ptr->y_start)
 442                      && ((unsigned)y <= button_ptr->y_end))
 443                     {
 444                         mx = (button_ptr->x_start + button_ptr->x_end)/2;
 445                         my = (button_ptr->y_start + button_ptr->y_end)/2;
 446                         dx = mx - x;
 447                         dy = my - y;
 448                         d = (dx*dx) + (dy*dy);
 449                         /* If the mouse is within the button and the mouse is closer
 450                         * to the center of this button then it is the best choice. */
 451                         if(d < dist) {
 452                             dist = d;
 453                             best = button;
 454                         }
 455                     }
 456                 }
 457
 458                 if ( best != 0)
 459                 {
 460                     btni_t button_ptr = pci->hli.btnit[best-1];
 461                     uint16 i_curr_button = p_sys->dvd_interpretor.GetSPRM( 0x88 );
 462
 463                     msg_Dbg( &p_sys->demuxer, "Clicked button %d", best );
 464                     vlc_mutex_unlock( &p_ev->lock );
 465                     vlc_mutex_lock( &p_sys->lock_demuxer );
 466
 467                     // process the button action
 468                     p_sys->dvd_interpretor.SetSPRM( 0x88, best );
 469                     p_sys->dvd_interpretor.Interpret( button_ptr.cmd.bytes, 8 );
 470
 471                     msg_Dbg( &p_sys->demuxer, "Processed button %d", best );
 472
 473                     // select new button
 474                     if ( best != i_curr_button )
 475                     {
 476                         vlc_value_t val;
 477
 478                         if( var_Get( p_sys->p_input, "highlight-mutex", &val ) == VLC_SUCCESS )
 479                         {
 480                             vlc_mutex_t *p_mutex = (vlc_mutex_t *) val.p_address;
 481                             uint32_t i_palette;
 482
 483                             if(button_ptr.btn_coln != 0) {
 484                                 i_palette = pci->hli.btn_colit.btn_coli[button_ptr.btn_coln-1][1];
 485                             } else {
 486                                 i_palette = 0;
 487                             }
 488
 489                             for( int i = 0; i < 4; i++ )
 490                             {
 491                                 uint32_t i_yuv = 0xFF;//p_sys->clut[(hl.palette>>(16+i*4))&0x0f];
 492                                 uint8_t i_alpha = (i_palette>>(i*4))&0x0f;
 493                                 i_alpha = i_alpha == 0xf ? 0xff : i_alpha << 4;
 494
 495                                 p_sys->palette[i][0] = (i_yuv >> 16) & 0xff;
 496                                 p_sys->palette[i][1] = (i_yuv >> 0) & 0xff;
 497                                 p_sys->palette[i][2] = (i_yuv >> 8) & 0xff;
 498                                 p_sys->palette[i][3] = i_alpha;
 499                             }
 500
 501                             vlc_mutex_lock( p_mutex );
 502                             val.i_int = button_ptr.x_start; var_Set( p_sys->p_input, "x-start", val );
 503                             val.i_int = button_ptr.x_end;   var_Set( p_sys->p_input, "x-end",   val );
 504                             val.i_int = button_ptr.y_start; var_Set( p_sys->p_input, "y-start", val );
 505                             val.i_int = button_ptr.y_end;   var_Set( p_sys->p_input, "y-end",   val );
 506
 507                             val.p_address = (void *)p_sys->palette;
 508                             var_Set( p_sys->p_input, "menu-palette", val );
 509
 510                             val.b_bool = true; var_Set( p_sys->p_input, "highlight", val );
 511                             vlc_mutex_unlock( p_mutex );
 512                         }
 513                     }
 514                     vlc_mutex_unlock( &p_sys->lock_demuxer );
 515                     vlc_mutex_lock( &p_ev->lock );
 516                 }
 517             }
 518             else if( p_ev->b_moved )
 519             {
 520 //                dvdnav_mouse_select( NULL, pci, x, y );
 521             }
 522
 523             p_ev->b_moved = false;
 524             p_ev->b_clicked = false;
 525             vlc_mutex_unlock( &p_ev->lock );
 526         }
 527
 528         /* VOUT part */
 529         if( p_vout && !vlc_object_alive (p_vout) )
 530         {
 531             var_DelCallback( p_vout, "mouse-moved", EventMouse, p_ev );
 532             var_DelCallback( p_vout, "mouse-clicked", EventMouse, p_ev );
 533             vlc_object_release( p_vout );
 534             p_vout = NULL;
 535         }
 536
 537         else if( p_vout == NULL )
 538         {
 539             p_vout = (vlc_object_t*) vlc_object_find( p_sys->p_input, VLC_OBJECT_VOUT,
 540                                       FIND_CHILD );
 541             if( p_vout)
 542             {
 543                 var_AddCallback( p_vout, "mouse-moved", EventMouse, p_ev );
 544                 var_AddCallback( p_vout, "mouse-clicked", EventMouse, p_ev );
 545             }
 546         }
 547
 548         /* Wait a bit, 10ms */
 549         msleep( 10000 );
 550     }
 551
 552     /* Release callback */
 553     if( p_vout )
 554     {
 555         var_DelCallback( p_vout, "mouse-moved", EventMouse, p_ev );
 556         var_DelCallback( p_vout, "mouse-clicked", EventMouse, p_ev );
 557         vlc_object_release( p_vout );
 558     }
 559     var_DelCallback( p_ev->p_libvlc, "key-action", EventKey, p_ev );
 560
 561     vlc_mutex_destroy( &p_ev->lock );
 562
 563     vlc_restorecancel (canc);
 564     return VLC_SUCCESS;
 565 }
 566
 567 void demux_sys_t::PreloadFamily( const matroska_segment_c & of_segment )
 568 {
 569     for (size_t i=0; i<opened_segments.size(); i++)
 570     {
 571         opened_segments[i]->PreloadFamily( of_segment );
 572     }
 573 }
 574
 575 // preload all the linked segments for all preloaded segments
 576 void demux_sys_t::PreloadLinked( matroska_segment_c *p_segment )
 577 {
 578     size_t i_preloaded, i, j;
 579     virtual_segment_c *p_seg;
 580
 581     p_current_segment = VirtualFromSegments( p_segment );
 582
 583     used_segments.push_back( p_current_segment );
 584
 585     // create all the other virtual segments of the family
 586     do {
 587         i_preloaded = 0;
 588         for ( i=0; i< opened_segments.size(); i++ )
 589         {
 590             if ( opened_segments[i]->b_preloaded && !IsUsedSegment( *opened_segments[i] ) )
 591             {
 592                 p_seg = VirtualFromSegments( opened_segments[i] );
 593                 used_segments.push_back( p_seg );
 594                 i_preloaded++;
 595             }
 596         }
 597     } while ( i_preloaded ); // worst case: will stop when all segments are found as family related
 598
 599     // publish all editions of all usable segment
 600     for ( i=0; i< used_segments.size(); i++ )
 601     {
 602         p_seg = used_segments[i];
 603         if ( p_seg->p_editions != NULL )
 604         {
 605             input_title_t *p_title = vlc_input_title_New();
 606             p_seg->i_sys_title = i;
 607             int i_chapters;
 608
 609             // TODO use a name for each edition, let the TITLE deal with a codec name
 610             for ( j=0; j<p_seg->p_editions->size(); j++ )
 611             {
 612                 if ( p_title->psz_name == NULL )
 613                 {
 614                     const char* psz_tmp = (*p_seg->p_editions)[j]->GetMainName().c_str();
 615                     if( *psz_tmp != '\0' )
 616                         p_title->psz_name = strdup( psz_tmp );
 617                 }
 618
 619                 chapter_edition_c *p_edition = (*p_seg->p_editions)[j];
 620
 621                 i_chapters = 0;
 622                 p_edition->PublishChapters( *p_title, i_chapters, 0 );
 623             }
 624
 625             // create a name if there is none
 626             if ( p_title->psz_name == NULL )
 627             {
 628                 if( asprintf(&(p_title->psz_name), "%s %d", N_("Segment"), (int)i) == -1 )
 629                     p_title->psz_name = NULL;
 630             }
 631
 632             titles.push_back( p_title );
 633         }
 634     }
 635
 636     // TODO decide which segment should be first used (VMG for DVD)
 637 }
 638
 639 bool demux_sys_t::IsUsedSegment( matroska_segment_c &segment ) const
 640 {
 641     for ( size_t i=0; i< used_segments.size(); i++ )
 642     {
 643         if ( used_segments[i]->FindUID( *segment.p_segment_uid ) )
 644             return true;
 645     }
 646     return false;
 647 }
 648
 649 virtual_segment_c *demux_sys_t::VirtualFromSegments( matroska_segment_c *p_segment ) const
 650 {
 651     size_t i_preloaded, i;
 652
 653     virtual_segment_c *p_result = new virtual_segment_c( p_segment );
 654
 655     // fill our current virtual segment with all hard linked segments
 656     do {
 657         i_preloaded = 0;
 658         for ( i=0; i< opened_segments.size(); i++ )
 659         {
 660             i_preloaded += p_result->AddSegment( opened_segments[i] );
 661         }
 662     } while ( i_preloaded ); // worst case: will stop when all segments are found as linked
 663
 664     p_result->Sort( );
 665
 666     p_result->PreloadLinked( );
 667
 668     p_result->PrepareChapters( );
 669
 670     return p_result;
 671 }
 672
 673 bool demux_sys_t::PreparePlayback( virtual_segment_c *p_new_segment )
 674 {
 675     if ( p_new_segment != NULL && p_new_segment != p_current_segment )
 676     {
 677         if ( p_current_segment != NULL && p_current_segment->Segment() != NULL )
 678             p_current_segment->Segment()->UnSelect();
 679
 680         p_current_segment = p_new_segment;
 681         i_current_title = p_new_segment->i_sys_title;
 682     }
 683     if( !p_current_segment->Segment()->b_cues )
 684         msg_Warn( &p_current_segment->Segment()->sys.demuxer, "no cues/empty cues found->seek won't be precise" );
 685
 686     f_duration = p_current_segment->Duration();
 687
 688     /* add information */
 689     p_current_segment->Segment()->InformationCreate( );
 690     p_current_segment->Segment()->Select( 0 );
 691
 692     return true;
 693 }
 694
 695 void demux_sys_t::JumpTo( virtual_segment_c & vsegment, chapter_item_c * p_chapter )
 696 {
 697     // if the segment is not part of the current segment, select the new one
 698     if ( &vsegment != p_current_segment )
 699     {
 700         PreparePlayback( &vsegment );
 701     }
 702
 703     if ( p_chapter != NULL )
 704     {
 705         if ( !p_chapter->Enter( true ) )
 706         {
 707             // jump to the location in the found segment
 708             vsegment.Seek( demuxer, p_chapter->i_user_start_time, -1, p_chapter, -1 );
 709         }
 710     }
 711
 712 }
 713
 714 matroska_segment_c *demux_sys_t::FindSegment( const EbmlBinary & uid ) const
 715 {
 716     for (size_t i=0; i<opened_segments.size(); i++)
 717     {
 718         if ( *opened_segments[i]->p_segment_uid == uid )
 719             return opened_segments[i];
 720     }
 721     return NULL;
 722 }
 723
 724 chapter_item_c *demux_sys_t::BrowseCodecPrivate( unsigned int codec_id,
 725                                         bool (*match)(const chapter_codec_cmds_c &data, const void *p_cookie, size_t i_cookie_size ),
 726                                         const void *p_cookie,
 727                                         size_t i_cookie_size,
 728                                         virtual_segment_c * &p_segment_found )
 729 {
 730     chapter_item_c *p_result = NULL;
 731     for (size_t i=0; i<used_segments.size(); i++)
 732     {
 733         p_result = used_segments[i]->BrowseCodecPrivate( codec_id, match, p_cookie, i_cookie_size );
 734         if ( p_result != NULL )
 735         {
 736             p_segment_found = used_segments[i];
 737             break;
 738         }
 739     }
 740     return p_result;
 741 }
 742
 743 chapter_item_c *demux_sys_t::FindChapter( int64_t i_find_uid, virtual_segment_c * & p_segment_found )
 744 {
 745     chapter_item_c *p_result = NULL;
 746     for (size_t i=0; i<used_segments.size(); i++)
 747     {
 748         p_result = used_segments[i]->FindChapter( i_find_uid );
 749         if ( p_result != NULL )
 750         {
 751             p_segment_found = used_segments[i];
 752             break;
 753         }
 754     }
 755     return p_result;
 756 }
 757
 758 void demux_sys_t::SwapButtons()
 759 {
 760 #ifndef WORDS_BIGENDIAN
 761     uint8_t button, i, j;
 762
 763     for( button = 1; button <= pci_packet.hli.hl_gi.btn_ns; button++) {
 764         btni_t *button_ptr = &(pci_packet.hli.btnit[button-1]);
 765         binary *p_data = (binary*) button_ptr;
 766
 767         uint16 i_x_start = ((p_data[0] & 0x3F) << 4 ) + ( p_data[1] >> 4 );
 768         uint16 i_x_end   = ((p_data[1] & 0x03) << 8 ) + p_data[2];
 769         uint16 i_y_start = ((p_data[3] & 0x3F) << 4 ) + ( p_data[4] >> 4 );
 770         uint16 i_y_end   = ((p_data[4] & 0x03) << 8 ) + p_data[5];
 771         button_ptr->x_start = i_x_start;
 772         button_ptr->x_end   = i_x_end;
 773         button_ptr->y_start = i_y_start;
 774         button_ptr->y_end   = i_y_end;
 775
 776     }
 777     for ( i = 0; i<3; i++ )
 778     {
 779         for ( j = 0; j<2; j++ )
 780         {
 781             pci_packet.hli.btn_colit.btn_coli[i][j] = U32_AT( &pci_packet.hli.btn_colit.btn_coli[i][j] );
 782         }
 783     }
 784 #endif
 785 }