git.sesse.net Git - vlc/blob - modules/gui/beos/VlcWrapper.cpp

   1 /*****************************************************************************
   2  * VlcWrapper.cpp: BeOS plugin for vlc (derived from MacOS X port)
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: VlcWrapper.cpp,v 1.12 2002/11/27 05:36:41 titer Exp $
   6  *
   7  * Authors: Florian G. Pflug <fgp@phlo.org>
   8  *          Jon Lech Johansen <jon-vl@nanocrew.net>
   9  *          Tony Casltey <tony@castley.net>
  10  *          Stephan Aßmus <stippi@yellowbites.com>
  11  *          Eric Petit <titer@videolan.org>
  12  *
  13  * This program is free software{} you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation{} either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY{} without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program{} if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  26  *****************************************************************************/
  27 #include <SupportKit.h>
  28
  29 #include <vlc/vlc.h>
  30 #include <vlc/intf.h>
  31 #include <audio_output.h>
  32 #include <aout_internal.h>
  33
  34 #include "VlcWrapper.h"
  35
  36 /* constructor */
  37 VlcWrapper::VlcWrapper( intf_thread_t *p_interface )
  38 {
  39     p_intf = p_interface;
  40     p_input = NULL;
  41     p_aout = NULL;
  42     p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  43                                                 FIND_ANYWHERE );
  44 }
  45
  46 /* destructor */
  47 VlcWrapper::~VlcWrapper()
  48 {
  49     if( p_input )
  50     {
  51         vlc_object_release( p_input );
  52     }
  53     if( p_playlist )
  54     {
  55         vlc_object_release( p_playlist );
  56     }
  57     if( p_aout )
  58     {
  59         vlc_object_release( p_aout );
  60     }
  61 }
  62
  63 /* UpdateInputAndAOut: updates p_input and p_aout, returns true if the
  64    interface needs to be updated */
  65 bool VlcWrapper::UpdateInputAndAOut()
  66 {
  67     if( p_input == NULL )
  68     {
  69         p_input = (input_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_INPUT,
  70                                                      FIND_ANYWHERE );
  71     }
  72     if( p_aout == NULL )
  73     {
  74         p_aout = (aout_instance_t*)vlc_object_find( p_intf, VLC_OBJECT_AOUT,
  75                                                     FIND_ANYWHERE );
  76     }
  77
  78     if( p_input != NULL )
  79     {
  80         if( p_input->b_dead )
  81         {
  82             vlc_object_release( p_input );
  83             p_input = NULL;
  84
  85             if( p_aout )
  86             {
  87                 vlc_object_release( p_aout );
  88                 p_aout = NULL;
  89             }
  90         }
  91         return true;
  92     }
  93     return false;
  94 }
  95
  96
  97 /***************************
  98  * input infos and control *
  99  ***************************/
 100
 101 /* status (UNDEF_S, PLAYING_S, PAUSE_S, FORWARD_S, BACKWARD_S,
 102    REWIND_S, NOT_STARTED_S, START_S) */
 103 int VlcWrapper::InputStatus()
 104 {
 105     if( !p_input )
 106     {
 107         return UNDEF_S;
 108     }
 109     return p_input->stream.control.i_status;
 110 }
 111
 112 int VlcWrapper::InputRate()
 113 {
 114     if( !p_input )
 115     {
 116         return DEFAULT_RATE;
 117     }
 118     return p_input->stream.control.i_rate;
 119 }
 120
 121 /* tell: location in the current stream (in arbitrary units) */
 122 int VlcWrapper::InputTell()
 123 {
 124     if( !p_input )
 125     {
 126         return -1;
 127     }
 128     return p_input->stream.p_selected_area->i_tell;
 129 }
 130
 131 /* size: total size of the current stream (in arbitrary units) */
 132 int VlcWrapper::InputSize()
 133 {
 134     if( !p_input )
 135     {
 136         return -1;
 137     }
 138     return p_input->stream.p_selected_area->i_size;
 139 }
 140
 141 void VlcWrapper::InputSlower()
 142 {
 143     if( p_input != NULL )
 144     {
 145         input_SetStatus( p_input, INPUT_STATUS_SLOWER );
 146     }
 147     if( p_input->stream.control.i_rate == DEFAULT_RATE)
 148     {
 149         toggle_mute();
 150     }
 151     else
 152     {
 153         toggle_mute();
 154     }
 155 }
 156
 157 void VlcWrapper::InputFaster()
 158 {
 159     if( p_input != NULL )
 160     {
 161         input_SetStatus( p_input, INPUT_STATUS_FASTER );
 162     }
 163     if( p_input->stream.control.i_rate == DEFAULT_RATE)
 164     {
 165         toggle_mute();
 166     }
 167     else
 168     {
 169         toggle_mute();
 170     }
 171 }
 172
 173 void VlcWrapper::openFiles( BList* o_files, bool replace )
 174 {
 175     BString *o_file;
 176
 177     while( ( o_file = (BString *)o_files->LastItem() ) )
 178     {
 179         o_files->RemoveItem(o_files->CountItems() - 1);
 180         playlist_Add( p_playlist, o_file->String(),
 181                   PLAYLIST_APPEND | PLAYLIST_GO, PLAYLIST_END );
 182         delete o_file;
 183     }
 184 }
 185
 186 void VlcWrapper::openDisc(BString o_type, BString o_device, int i_title, int i_chapter)
 187 {
 188     BString o_source("");
 189     o_source << o_type << ":" << o_device ;
 190
 191     playlist_Add( p_playlist, o_source.String(),
 192                   PLAYLIST_APPEND | PLAYLIST_GO, PLAYLIST_END );
 193 }
 194
 195
 196
 197 void VlcWrapper::toggleLanguage(int i_language)
 198 {
 199
 200     int32 i_old = -1;
 201     int i_cat = AUDIO_ES;
 202
 203     vlc_mutex_lock( &p_input->stream.stream_lock );
 204     for( int i = 0; i < p_input->stream.i_selected_es_number ; i++ )
 205     {
 206         if( p_input->stream.pp_selected_es[i]->i_cat == i_cat )
 207         {
 208             i_old = i;
 209             break;
 210         }
 211     }
 212     vlc_mutex_unlock( &p_input->stream.stream_lock );
 213
 214     msg_Info( p_intf, "Old: %d,  New: %d", i_old, i_language);
 215     if( i_language != -1 )
 216     {
 217         input_ToggleES( p_input,
 218                         p_input->stream.pp_selected_es[i_language],
 219                         VLC_TRUE );
 220     }
 221
 222     if( (i_old != -1) && (i_old != i_language) )
 223     {
 224         input_ToggleES( p_input,
 225                         p_input->stream.pp_selected_es[i_old],
 226                         VLC_FALSE );
 227     }
 228 }
 229
 230 void VlcWrapper::toggleSubtitle(int i_subtitle)
 231 {
 232     int32 i_old = -1;
 233     int i_cat = SPU_ES;
 234
 235     vlc_mutex_lock( &p_input->stream.stream_lock );
 236     for( int i = 0; i < p_input->stream.i_selected_es_number ; i++ )
 237     {
 238         if( p_input->stream.pp_selected_es[i]->i_cat == i_cat )
 239         {
 240             i_old = i;
 241             break;
 242         }
 243     }
 244     vlc_mutex_unlock( &p_input->stream.stream_lock );
 245
 246     msg_Info( p_intf, "Old: %d,  New: %d", i_old, i_subtitle);
 247     if( i_subtitle != -1 )
 248     {
 249         input_ToggleES( p_input,
 250                         p_input->stream.pp_selected_es[i_subtitle],
 251                         VLC_TRUE );
 252     }
 253
 254     if( (i_old != -1) && (i_old != i_subtitle) )
 255     {
 256         input_ToggleES( p_input,
 257                         p_input->stream.pp_selected_es[i_old],
 258                         VLC_FALSE );
 259     }
 260 }
 261
 262 const char*  VlcWrapper::getTimeAsString()
 263 {
 264     static char psz_currenttime[ OFFSETTOTIME_MAX_SIZE ];
 265
 266     if( p_input == NULL )
 267     {
 268         return ("-:--:--");
 269     }
 270
 271     input_OffsetToTime( p_input,
 272                         psz_currenttime,
 273                         p_input->stream.p_selected_area->i_tell );
 274
 275     return(psz_currenttime);
 276 }
 277
 278 float  VlcWrapper::getTimeAsFloat()
 279 {
 280     float f_time = 0.0;
 281
 282     if( p_input != NULL )
 283     {
 284         f_time = (float)p_input->stream.p_selected_area->i_tell /
 285                  (float)p_input->stream.p_selected_area->i_size;
 286     }
 287     else
 288     {
 289         f_time = 0.0;
 290     }
 291     return( f_time );
 292 }
 293
 294 void VlcWrapper::setTimeAsFloat(float f_position)
 295 {
 296     if( p_input != NULL )
 297     {
 298         input_Seek( p_input,
 299                    (long long int)(p_input->stream.p_selected_area->i_size
 300                        * f_position / SEEKSLIDER_RANGE ),
 301                    INPUT_SEEK_SET);
 302     }
 303 }
 304
 305
 306 /******************************
 307  * playlist infos and control *
 308  ******************************/
 309 int VlcWrapper::PlaylistSize()
 310 {
 311     vlc_mutex_lock( &p_playlist->object_lock );
 312     int i_size = p_playlist->i_size;
 313     vlc_mutex_unlock( &p_playlist->object_lock );
 314     return i_size;
 315 }
 316
 317 char *VlcWrapper::PlaylistItemName( int i )
 318 {
 319    return p_playlist->pp_items[i]->psz_name;
 320 }
 321
 322 int VlcWrapper::PlaylistCurrent()
 323 {
 324     return p_playlist->i_index;
 325 }
 326
 327 int  VlcWrapper::PlaylistStatus()
 328 {
 329     return p_playlist->i_status;
 330 }
 331
 332 bool VlcWrapper::PlaylistPlay()
 333 {
 334     if( PlaylistSize() )
 335     {
 336         playlist_Play( p_playlist );
 337     }
 338     return( true );
 339 }
 340
 341 void VlcWrapper::PlaylistPause()
 342 {
 343     toggle_mute();
 344     if( p_input )
 345     {
 346         input_SetStatus( p_input, INPUT_STATUS_PAUSE );
 347     }
 348 }
 349
 350 void VlcWrapper::PlaylistStop()
 351 {
 352     volume_mute();
 353     playlist_Stop( p_playlist );
 354 }
 355
 356 void VlcWrapper::PlaylistNext()
 357 {
 358     playlist_Next( p_playlist );
 359 }
 360
 361 void VlcWrapper::PlaylistPrev()
 362 {
 363     playlist_Prev( p_playlist );
 364 }
 365
 366 void VlcWrapper::PlaylistSkip( int i )
 367 {
 368     playlist_Skip( p_playlist, i );
 369 }
 370
 371 void VlcWrapper::PlaylistGoto( int i )
 372 {
 373     playlist_Goto( p_playlist, i );
 374 }
 375
 376 void VlcWrapper::PlaylistLoop()
 377 {
 378     if ( p_intf->p_sys->b_loop )
 379     {
 380         playlist_Delete( p_playlist, p_playlist->i_size - 1 );
 381     }
 382     else
 383     {
 384         playlist_Add( p_playlist, "vlc:loop",
 385                       PLAYLIST_APPEND | PLAYLIST_GO,
 386                       PLAYLIST_END );
 387     }
 388     p_intf->p_sys->b_loop = !p_intf->p_sys->b_loop;
 389 }
 390
 391 BList * VlcWrapper::PlaylistAsArray()
 392 {
 393     int i;
 394     BList* p_list = new BList(p_playlist->i_size);
 395
 396     vlc_mutex_lock( &p_playlist->object_lock );
 397
 398     for( i = 0; i < p_playlist->i_size; i++ )
 399     {
 400         p_list->AddItem(new BString(p_playlist->pp_items[i]->psz_name));
 401     }
 402
 403     vlc_mutex_unlock( &p_playlist->object_lock );
 404     return( p_list );
 405 }
 406
 407 void VlcWrapper::getPlaylistInfo( int32& currentIndex, int32& maxIndex )
 408 {
 409         currentIndex = -1;
 410         maxIndex = -1;
 411         if ( p_playlist )
 412         {
 413                 maxIndex = p_playlist->i_size;
 414                 if ( maxIndex > 0 )
 415                         currentIndex = p_playlist->i_index + 1;
 416                 else
 417                         maxIndex = -1;
 418         }
 419 }
 420
 421
 422 void VlcWrapper::PlaylistJumpTo( int pos )
 423 {
 424 #if 0
 425         // sanity checks
 426         if ( pos < 0 )
 427                 pos = 0;
 428         int size = playlistSize();
 429         if (pos >= size)
 430                 pos = size - 1;
 431         // weird hack
 432     if( p_input_bank->pp_input[0] != NULL )
 433                 pos--;
 434         // stop current stream
 435         playlistStop();
 436         // modify current position in playlist
 437         playlistLock();
 438         p_main->p_playlist->i_index = pos;
 439         playlistUnlock();
 440         // start playing
 441         playlistPlay();
 442 #endif
 443 }
 444
 445 void VlcWrapper::getNavCapabilities( bool *canSkipPrev, bool *canSkipNext )
 446 {
 447         if ( canSkipPrev && canSkipNext )
 448         {
 449                 // init the parameters
 450                 *canSkipPrev = false;
 451                 *canSkipNext = false;
 452                 // get playlist info
 453                 int pos = PlaylistCurrent();
 454                 int size = PlaylistSize();
 455
 456                 // see if we have got a stream going
 457                 if ( p_input )
 458                 {
 459                         vlc_mutex_lock( &p_input->stream.stream_lock );
 460
 461                         bool hasTitles = p_input->stream.i_area_nb > 1;
 462                         int numChapters = p_input->stream.p_selected_area->i_part_nb;
 463                         bool hasChapters = numChapters > 1;
 464                         // first, look for chapters
 465                         if ( hasChapters )
 466                         {
 467                                 *canSkipPrev = p_input->stream.p_selected_area->i_part > 0;
 468                                 *canSkipNext = p_input->stream.p_selected_area->i_part <
 469                                                                          p_input->stream.p_selected_area->i_part_nb - 1;
 470                         }
 471                         // if one of the skip capabilities is false,
 472                         // make it depend on titles instead
 473                         if ( !*canSkipPrev && hasTitles )
 474                                 *canSkipPrev = p_input->stream.p_selected_area->i_id > 1;
 475                         if ( !*canSkipNext && hasTitles )
 476                                 *canSkipNext = p_input->stream.p_selected_area->i_id <
 477                                                    p_input->stream.i_area_nb - 1;
 478
 479                         vlc_mutex_unlock( &p_input->stream.stream_lock );
 480                 }
 481                 // last but not least, make capabilities depend on playlist
 482                 if ( !*canSkipPrev )
 483                         *canSkipPrev = pos > 0;
 484                 if ( !*canSkipNext )
 485                         *canSkipNext = pos < size - 1;
 486         }
 487 }
 488
 489 void VlcWrapper::navigatePrev()
 490 {
 491         bool hasSkiped = false;
 492
 493         // see if we have got a stream going
 494         if ( p_input )
 495         {
 496                 // get information from stream (lock it while looking at it)
 497                 vlc_mutex_lock( &p_input->stream.stream_lock );
 498
 499                 int currentTitle = p_input->stream.p_selected_area->i_id;
 500                 int currentChapter = p_input->stream.p_selected_area->i_part;
 501                 int numTitles = p_input->stream.i_area_nb;
 502                 bool hasTitles = numTitles > 1;
 503                 int numChapters = p_input->stream.p_selected_area->i_part_nb;
 504                 bool hasChapters = numChapters > 1;
 505
 506                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 507
 508                 // first, look for chapters
 509                 if ( hasChapters )
 510                 {
 511                         // skip to the previous chapter
 512                         currentChapter--;
 513
 514                         if ( currentChapter >= 0 )
 515                         {
 516                                 toggleChapter( currentChapter );
 517                                 hasSkiped = true;
 518                         }
 519                 }
 520                 // if we couldn't skip chapters, try titles instead
 521                 if ( !hasSkiped && hasTitles )
 522                 {
 523                         // skip to the previous title
 524                         currentTitle--;
 525                         // disallow area 0 since it is used for video_ts.vob
 526                         if( currentTitle > 0 )
 527                         {
 528                                 toggleTitle(currentTitle);
 529                                 hasSkiped = true;
 530                         }
 531                 }
 532
 533         }
 534         // last but not least, skip to previous file
 535         if ( !hasSkiped )
 536                 PlaylistPrev();
 537 }
 538
 539 void VlcWrapper::navigateNext()
 540 {
 541         bool hasSkiped = false;
 542
 543         // see if we have got a stream going
 544         if ( p_input )
 545         {
 546                 // get information from stream (lock it while looking at it)
 547                 vlc_mutex_lock( &p_input->stream.stream_lock );
 548
 549                 int currentTitle = p_input->stream.p_selected_area->i_id;
 550                 int currentChapter = p_input->stream.p_selected_area->i_part;
 551                 int numTitles = p_input->stream.i_area_nb;
 552                 bool hasTitles = numTitles > 1;
 553                 int numChapters = p_input->stream.p_selected_area->i_part_nb;
 554                 bool hasChapters = numChapters > 1;
 555
 556                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 557
 558                 // first, look for chapters
 559                 if ( hasChapters )
 560                 {
 561                         // skip to the next chapter
 562                         currentChapter++;
 563                         if ( currentChapter < numChapters )
 564                         {
 565                                 toggleChapter( currentChapter );
 566                                 hasSkiped = true;
 567                         }
 568                 }
 569                 // if we couldn't skip chapters, try titles instead
 570                 if ( !hasSkiped && hasTitles )
 571                 {
 572                         // skip to the next title
 573                         currentTitle++;
 574                         // disallow area 0 since it is used for video_ts.vob
 575                         if ( currentTitle < numTitles - 1 )
 576                         {
 577                                 toggleTitle(currentTitle);
 578                                 hasSkiped = true;
 579                         }
 580                 }
 581
 582         }
 583         // last but not least, skip to next file
 584         if ( !hasSkiped )
 585                 PlaylistNext();
 586 }
 587
 588
 589 /***************************
 590  * audio infos and control *
 591  ***************************/
 592
 593 void VlcWrapper::volume_mute()
 594 {
 595     if( p_aout != NULL )
 596     {
 597             if( !p_intf->p_sys->b_mute )
 598                 {
 599                     p_intf->p_sys->i_saved_volume = p_aout->output.i_volume;
 600                     p_aout->output.i_volume = 0;
 601                     p_intf->p_sys->b_mute = 1;
 602                 }
 603     }
 604
 605 }
 606
 607 void VlcWrapper::volume_restore()
 608 {
 609     if( p_aout != NULL )
 610     {
 611             p_aout->output.i_volume = p_intf->p_sys->i_saved_volume;
 612                 p_intf->p_sys->i_saved_volume = 0;
 613             p_intf->p_sys->b_mute = 0;
 614     }
 615
 616 }
 617
 618 void VlcWrapper::set_volume(int value)
 619 {
 620     if( p_aout != NULL )
 621     {
 622                 // make sure value is within bounds
 623                 if (value < 0)
 624                         value = 0;
 625                 if (value > AOUT_VOLUME_MAX)
 626                         value = AOUT_VOLUME_MAX;
 627                 vlc_mutex_lock( &p_aout->mixer_lock );
 628                 // unmute volume if muted
 629                 if ( p_intf->p_sys->b_mute )
 630                 {
 631                         p_intf->p_sys->b_mute = 0;
 632             p_aout->output.i_volume = value;
 633                 }
 634                 vlc_mutex_unlock( &p_aout->mixer_lock );
 635     }
 636 }
 637
 638 void VlcWrapper::toggle_mute()
 639 {
 640     if( p_aout != NULL )
 641         {
 642             if ( p_intf->p_sys->b_mute )
 643             {
 644                 volume_restore();
 645             }
 646             else
 647             {
 648                 volume_mute();
 649             }
 650         }
 651 }
 652
 653 bool VlcWrapper::is_muted()
 654 {
 655         bool muted = true;
 656
 657     if( p_aout != NULL )
 658         {
 659                 vlc_mutex_lock( &p_aout->mixer_lock );
 660                 if( p_aout->output.i_volume > 0 )
 661                 {
 662                         muted = false;
 663                 }
 664                 vlc_mutex_unlock( &p_aout->mixer_lock );
 665 // unfortunately, this is not reliable!
 666 //              return p_main->p_intf->p_sys->b_mute;
 667         }
 668         return muted;
 669 }
 670
 671 bool VlcWrapper::is_playing()
 672 {
 673
 674         bool playing = false;
 675         if ( p_input )
 676         {
 677                 switch ( p_input->stream.control.i_status )
 678                 {
 679                         case PLAYING_S:
 680                         case FORWARD_S:
 681                         case BACKWARD_S:
 682                         case START_S:
 683                                 playing = true;
 684                     break;
 685                         case PAUSE_S:
 686                         case UNDEF_S:
 687                         case NOT_STARTED_S:
 688                         default:
 689                                 break;
 690                 }
 691         }
 692         return playing;
 693
 694 }
 695
 696 void VlcWrapper::maxvolume()
 697 {
 698     if( p_aout != NULL )
 699     {
 700             if( p_intf->p_sys->b_mute )
 701             {
 702                 p_intf->p_sys->i_saved_volume = AOUT_VOLUME_MAX;
 703             }
 704             else
 705             {
 706                 p_aout->output.i_volume = AOUT_VOLUME_MAX;
 707             }
 708     }
 709 }
 710
 711 bool VlcWrapper::has_audio()
 712 {
 713     return( p_aout != NULL );
 714 }
 715
 716 /*******
 717  * DVD *
 718  *******/
 719 bool VlcWrapper::HasTitles()
 720 {
 721     if( !p_input )
 722     {
 723         return false;
 724     }
 725     return ( p_input->stream.i_area_nb > 1 );
 726 }
 727
 728 void VlcWrapper::PrevTitle()
 729 {
 730     int i_id;
 731     i_id = p_input->stream.p_selected_area->i_id - 1;
 732     if( i_id > 0 )
 733     {
 734         toggleTitle(i_id);
 735     }
 736 }
 737
 738 void VlcWrapper::NextTitle()
 739 {
 740     int i_id;
 741     i_id = p_input->stream.p_selected_area->i_id + 1;
 742     if( i_id < p_input->stream.i_area_nb )
 743     {
 744         toggleTitle(i_id);
 745     }
 746 }
 747
 748 bool VlcWrapper::HasChapters()
 749 {
 750     if( !p_input )
 751     {
 752         return false;
 753     }
 754     return ( p_input->stream.p_selected_area->i_part_nb > 1 );
 755 }
 756
 757 void VlcWrapper::PrevChapter()
 758 {
 759     int i_id;
 760     i_id = p_input->stream.p_selected_area->i_part - 1;
 761     if( i_id >= 0 )
 762     {
 763         toggleChapter(i_id);
 764     }
 765 }
 766
 767 void VlcWrapper::NextChapter()
 768 {
 769     int i_id;
 770     i_id = p_input->stream.p_selected_area->i_part + 1;
 771     if( i_id >= 0 )
 772     {
 773         toggleChapter(i_id);
 774     }
 775 }
 776
 777 void VlcWrapper::TitleInfo( int32 &currentIndex, int32 &maxIndex )
 778 {
 779         currentIndex = -1;
 780         maxIndex = -1;
 781         if ( p_input )
 782         {
 783                 vlc_mutex_lock( &p_input->stream.stream_lock );
 784
 785                 maxIndex = p_input->stream.i_area_nb - 1;
 786                 if ( maxIndex > 0)
 787                         currentIndex = p_input->stream.p_selected_area->i_id;
 788                 else
 789                         maxIndex = -1;
 790
 791                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 792         }
 793 }
 794
 795 void VlcWrapper::ChapterInfo( int32 &currentIndex, int32 &maxIndex )
 796 {
 797         currentIndex = -1;
 798         maxIndex = -1;
 799         if ( p_input )
 800         {
 801                 vlc_mutex_lock( &p_input->stream.stream_lock );
 802
 803                 maxIndex = p_input->stream.p_selected_area->i_part_nb - 1;
 804                 if ( maxIndex > 0)
 805                         currentIndex = p_input->stream.p_selected_area->i_part;
 806                 else
 807                         maxIndex = -1;
 808
 809                 vlc_mutex_unlock( &p_input->stream.stream_lock );
 810         }
 811 }
 812
 813 void VlcWrapper::toggleTitle(int i_title)
 814 {
 815     if( p_input != NULL )
 816     {
 817         input_ChangeArea( p_input,
 818                           p_input->stream.pp_areas[i_title] );
 819
 820         vlc_mutex_lock( &p_input->stream.stream_lock );
 821
 822         vlc_mutex_unlock( &p_input->stream.stream_lock );
 823     }
 824 }
 825
 826 void VlcWrapper::toggleChapter(int i_chapter)
 827 {
 828     if( p_input != NULL )
 829     {
 830         p_input->stream.p_selected_area->i_part = i_chapter;
 831         input_ChangeArea( p_input,
 832                           p_input->stream.p_selected_area );
 833
 834         vlc_mutex_lock( &p_input->stream.stream_lock );
 835         vlc_mutex_unlock( &p_input->stream.stream_lock );
 836     }
 837 }