git.sesse.net Git - vlc/blob - modules/gui/skins2/src/vlcproc.cpp

   1 /*****************************************************************************
   2  * vlcproc.cpp
   3  *****************************************************************************
   4  * Copyright (C) 2003-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Cyril Deguet     <asmax@via.ecp.fr>
   8  *          Olivier Teulière <ipkiss@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <vlc_common.h>
  30 #include <vlc_aout.h>
  31 #include <vlc_vout.h>
  32 #include <vlc_playlist.h>
  33 #include <vlc_window.h>
  34
  35 #include "vlcproc.hpp"
  36 #include "os_factory.hpp"
  37 #include "os_loop.hpp"
  38 #include "os_timer.hpp"
  39 #include "var_manager.hpp"
  40 #include "vout_manager.hpp"
  41 #include "theme.hpp"
  42 #include "window_manager.hpp"
  43 #include "../commands/async_queue.hpp"
  44 #include "../commands/cmd_change_skin.hpp"
  45 #include "../commands/cmd_show_window.hpp"
  46 #include "../commands/cmd_quit.hpp"
  47 #include "../commands/cmd_resize.hpp"
  48 #include "../commands/cmd_vars.hpp"
  49 #include "../commands/cmd_dialogs.hpp"
  50 #include "../commands/cmd_update_item.hpp"
  51 #include "../utils/var_bool.hpp"
  52 #include <sstream>
  53
  54
  55 VlcProc *VlcProc::instance( intf_thread_t *pIntf )
  56 {
  57     if( pIntf->p_sys->p_vlcProc == NULL )
  58     {
  59         pIntf->p_sys->p_vlcProc = new VlcProc( pIntf );
  60     }
  61
  62     return pIntf->p_sys->p_vlcProc;
  63 }
  64
  65
  66 void VlcProc::destroy( intf_thread_t *pIntf )
  67 {
  68     delete pIntf->p_sys->p_vlcProc;
  69     pIntf->p_sys->p_vlcProc = NULL;
  70 }
  71
  72
  73 VlcProc::VlcProc( intf_thread_t *pIntf ): SkinObject( pIntf ),
  74     m_varVoutSize( pIntf ), m_varEqBands( pIntf ),
  75     m_pVout( NULL ), m_pAout( NULL ), m_cmdManage( this )
  76 {
  77     // Create a timer to poll the status of the vlc
  78     OSFactory *pOsFactory = OSFactory::instance( pIntf );
  79     m_pTimer = pOsFactory->createOSTimer( m_cmdManage );
  80     m_pTimer->start( 100, false );
  81
  82     // Create and register VLC variables
  83     VarManager *pVarManager = VarManager::instance( getIntf() );
  84
  85 #define REGISTER_VAR( var, type, name ) \
  86     var = VariablePtr( new type( getIntf() ) ); \
  87     pVarManager->registerVar( var, name );
  88     REGISTER_VAR( m_cVarRandom, VarBoolImpl, "playlist.isRandom" )
  89     REGISTER_VAR( m_cVarLoop, VarBoolImpl, "playlist.isLoop" )
  90     REGISTER_VAR( m_cVarRepeat, VarBoolImpl, "playlist.isRepeat" )
  91     REGISTER_VAR( m_cPlaytree, Playtree, "playtree" )
  92     pVarManager->registerVar( getPlaytreeVar().getPositionVarPtr(),
  93                               "playtree.slider" );
  94     pVarManager->registerVar( m_cVarRandom, "playtree.isRandom" );
  95     pVarManager->registerVar( m_cVarLoop, "playtree.isLoop" );
  96
  97     REGISTER_VAR( m_cVarPlaying, VarBoolImpl, "vlc.isPlaying" )
  98     REGISTER_VAR( m_cVarStopped, VarBoolImpl, "vlc.isStopped" )
  99     REGISTER_VAR( m_cVarPaused, VarBoolImpl, "vlc.isPaused" )
 100
 101     /* Input variables */
 102     pVarManager->registerVar( m_cVarRepeat, "playtree.isRepeat" );
 103     REGISTER_VAR( m_cVarTime, StreamTime, "time" )
 104     REGISTER_VAR( m_cVarSeekable, VarBoolImpl, "vlc.isSeekable" )
 105     REGISTER_VAR( m_cVarDvdActive, VarBoolImpl, "dvd.isActive" )
 106
 107     /* Vout variables */
 108     REGISTER_VAR( m_cVarFullscreen, VarBoolImpl, "vlc.isFullscreen" )
 109     REGISTER_VAR( m_cVarHasVout, VarBoolImpl, "vlc.hasVout" )
 110
 111     /* Aout variables */
 112     REGISTER_VAR( m_cVarHasAudio, VarBoolImpl, "vlc.hasAudio" )
 113     REGISTER_VAR( m_cVarVolume, Volume, "volume" )
 114     REGISTER_VAR( m_cVarMute, VarBoolImpl, "vlc.isMute" )
 115     REGISTER_VAR( m_cVarEqualizer, VarBoolImpl, "equalizer.isEnabled" )
 116     REGISTER_VAR( m_cVarEqPreamp, EqualizerPreamp, "equalizer.preamp" )
 117
 118 #undef REGISTER_VAR
 119     m_cVarStreamName = VariablePtr( new VarText( getIntf(), false ) );
 120     pVarManager->registerVar( m_cVarStreamName, "streamName" );
 121     m_cVarStreamURI = VariablePtr( new VarText( getIntf(), false ) );
 122     pVarManager->registerVar( m_cVarStreamURI, "streamURI" );
 123     m_cVarStreamBitRate = VariablePtr( new VarText( getIntf(), false ) );
 124     pVarManager->registerVar( m_cVarStreamBitRate, "bitrate" );
 125     m_cVarStreamSampleRate = VariablePtr( new VarText( getIntf(), false ) );
 126     pVarManager->registerVar( m_cVarStreamSampleRate, "samplerate" );
 127
 128     // Register the equalizer bands
 129     for( int i = 0; i < EqualizerBands::kNbBands; i++)
 130     {
 131         stringstream ss;
 132         ss << "equalizer.band(" << i << ")";
 133         pVarManager->registerVar( m_varEqBands.getBand( i ), ss.str() );
 134     }
 135
 136     // XXX WARNING XXX
 137     // The object variable callbacks are called from other VLC threads,
 138     // so they must put commands in the queue and NOT do anything else
 139     // (X11 calls are not reentrant)
 140
 141     // Called when the playlist changes
 142     var_AddCallback( pIntf->p_sys->p_playlist, "intf-change",
 143                      onIntfChange, this );
 144     // Called when a playlist item is added
 145     var_AddCallback( pIntf->p_sys->p_playlist, "playlist-item-append",
 146                      onItemAppend, this );
 147     // Called when a playlist item is deleted
 148     // TODO: properly handle item-deleted
 149     var_AddCallback( pIntf->p_sys->p_playlist, "playlist-item-deleted",
 150                      onItemDelete, this );
 151     // Called when the "interface shower" wants us to show the skin
 152     var_AddCallback( pIntf->p_libvlc, "intf-show",
 153                      onIntfShow, this );
 154     // Called when the current played item changes
 155     var_AddCallback( pIntf->p_sys->p_playlist, "item-current",
 156                      onPlaylistChange, this );
 157     // Called when a playlist item changed
 158     var_AddCallback( pIntf->p_sys->p_playlist, "item-change",
 159                      onItemChange, this );
 160     // Called when our skins2 demux wants us to load a new skin
 161     var_AddCallback( pIntf, "skin-to-load", onSkinToLoad, this );
 162
 163     // Called when we have an interaction dialog to display
 164     var_Create( pIntf, "interaction", VLC_VAR_ADDRESS );
 165     var_AddCallback( pIntf, "interaction", onInteraction, this );
 166     interaction_Register( pIntf );
 167
 168     getIntf()->p_sys->p_input = NULL;
 169 }
 170
 171
 172 VlcProc::~VlcProc()
 173 {
 174     m_pTimer->stop();
 175     delete( m_pTimer );
 176     if( getIntf()->p_sys->p_input )
 177     {
 178         vlc_object_release( getIntf()->p_sys->p_input );
 179         getIntf()->p_sys->p_input = NULL;
 180     }
 181
 182     interaction_Unregister( getIntf() );
 183
 184     var_DelCallback( getIntf()->p_sys->p_playlist, "intf-change",
 185                      onIntfChange, this );
 186     var_DelCallback( getIntf()->p_sys->p_playlist, "playlist-item-append",
 187                      onItemAppend, this );
 188     var_DelCallback( getIntf()->p_sys->p_playlist, "playlist-item-deleted",
 189                      onItemDelete, this );
 190     var_DelCallback( getIntf()->p_libvlc, "intf-show",
 191                      onIntfShow, this );
 192     var_DelCallback( getIntf()->p_sys->p_playlist, "item-current",
 193                      onPlaylistChange, this );
 194     var_DelCallback( getIntf()->p_sys->p_playlist, "item-change",
 195                      onItemChange, this );
 196     var_DelCallback( getIntf(), "skin-to-load", onSkinToLoad, this );
 197     var_DelCallback( getIntf(), "interaction", onInteraction, this );
 198 }
 199
 200 void VlcProc::manage()
 201 {
 202     // Did the user request to quit vlc ?
 203     if( !vlc_object_alive( getIntf() ) )
 204     {
 205         // Get the instance of OSFactory
 206         OSFactory *pOsFactory = OSFactory::instance( getIntf() );
 207
 208         // Exit the main OS loop
 209         pOsFactory->getOSLoop()->exit();
 210
 211         return;
 212     }
 213
 214     refreshPlaylist();
 215     refreshAudio();
 216     refreshInput();
 217 }
 218
 219 void VlcProc::CmdManage::execute()
 220 {
 221     // Just forward to VlcProc
 222     m_pParent->manage();
 223 }
 224
 225 void VlcProc::refreshAudio()
 226 {
 227     char *pFilters;
 228
 229     // Check if the audio output has changed
 230     aout_instance_t *pAout = (aout_instance_t *)vlc_object_find( getIntf(),
 231             VLC_OBJECT_AOUT, FIND_ANYWHERE );
 232     if( pAout )
 233     {
 234         if( pAout != m_pAout )
 235         {
 236             // Register the equalizer callbacks
 237             if( !var_AddCallback( pAout, "equalizer-bands",
 238                                   onEqBandsChange, this ) &&
 239                 !var_AddCallback( pAout, "equalizer-preamp",
 240                                   onEqPreampChange, this ) )
 241             {
 242                 m_pAout = pAout;
 243                 //char * psz_bands = var_GetString( p_aout, "equalizer-bands" );
 244             }
 245         }
 246         // Get the audio filters
 247         pFilters = var_GetNonEmptyString( pAout, "audio-filter" );
 248         vlc_object_release( pAout );
 249     }
 250     else
 251     {
 252         // Get the audio filters
 253         pFilters = config_GetPsz( getIntf(), "audio-filter" );
 254     }
 255
 256     // Refresh sound volume
 257     audio_volume_t volume;
 258     aout_VolumeGet( getIntf()->p_sys->p_playlist, &volume );
 259     Volume *pVolume = (Volume*)m_cVarVolume.get();
 260     pVolume->set( (double)volume * 2.0 / AOUT_VOLUME_MAX );
 261
 262     // Set the mute variable
 263     VarBoolImpl *pVarMute = (VarBoolImpl*)m_cVarMute.get();
 264     pVarMute->set( volume == 0 );
 265
 266     // Refresh the equalizer variable
 267     VarBoolImpl *pVarEqualizer = (VarBoolImpl*)m_cVarEqualizer.get();
 268     pVarEqualizer->set( pFilters && strstr( pFilters, "equalizer" ) );
 269     free( pFilters );
 270 }
 271
 272 void VlcProc::refreshPlaylist()
 273 {
 274     // Refresh the random variable
 275     VarBoolImpl *pVarRandom = (VarBoolImpl*)m_cVarRandom.get();
 276     vlc_value_t val;
 277     var_Get( getIntf()->p_sys->p_playlist, "random", &val );
 278     pVarRandom->set( val.b_bool != 0 );
 279
 280     // Refresh the loop variable
 281     VarBoolImpl *pVarLoop = (VarBoolImpl*)m_cVarLoop.get();
 282     var_Get( getIntf()->p_sys->p_playlist, "loop", &val );
 283     pVarLoop->set( val.b_bool != 0 );
 284
 285     // Refresh the repeat variable
 286     VarBoolImpl *pVarRepeat = (VarBoolImpl*)m_cVarRepeat.get();
 287     var_Get( getIntf()->p_sys->p_playlist, "repeat", &val );
 288     pVarRepeat->set( val.b_bool != 0 );
 289 }
 290
 291 void VlcProc::refreshInput()
 292 {
 293     StreamTime *pTime = (StreamTime*)m_cVarTime.get();
 294     VarBoolImpl *pVarSeekable = (VarBoolImpl*)m_cVarSeekable.get();
 295     VarBoolImpl *pVarDvdActive = (VarBoolImpl*)m_cVarDvdActive.get();
 296     VarBoolImpl *pVarHasVout = (VarBoolImpl*)m_cVarHasVout.get();
 297     VarBoolImpl *pVarHasAudio = (VarBoolImpl*)m_cVarHasAudio.get();
 298     VarText *pBitrate = (VarText*)m_cVarStreamBitRate.get();
 299     VarText *pSampleRate = (VarText*)m_cVarStreamSampleRate.get();
 300     VarBoolImpl *pVarFullscreen = (VarBoolImpl*)m_cVarFullscreen.get();
 301     VarBoolImpl *pVarPlaying = (VarBoolImpl*)m_cVarPlaying.get();
 302     VarBoolImpl *pVarStopped = (VarBoolImpl*)m_cVarStopped.get();
 303     VarBoolImpl *pVarPaused = (VarBoolImpl*)m_cVarPaused.get();
 304
 305     // Update the input
 306     if( getIntf()->p_sys->p_input == NULL )
 307     {
 308         getIntf()->p_sys->p_input =
 309             playlist_CurrentInput( getIntf()->p_sys->p_playlist );
 310     }
 311     else if( getIntf()->p_sys->p_input->b_dead )
 312     {
 313         vlc_object_release( getIntf()->p_sys->p_input );
 314         getIntf()->p_sys->p_input = NULL;
 315     }
 316
 317     input_thread_t *pInput = getIntf()->p_sys->p_input;
 318
 319     if( pInput && vlc_object_alive (pInput) )
 320     {
 321         // Refresh time variables
 322         vlc_value_t pos;
 323         var_Get( pInput, "position", &pos );
 324         pTime->set( pos.f_float, false );
 325         pVarSeekable->set( pos.f_float != 0.0 );
 326
 327         // Refresh DVD detection
 328         vlc_value_t chapters_count;
 329         var_Change( pInput, "chapter", VLC_VAR_CHOICESCOUNT,
 330                         &chapters_count, NULL );
 331         pVarDvdActive->set( chapters_count.i_int > 0 );
 332
 333         // Get the input bitrate
 334         int bitrate = var_GetInteger( pInput, "bit-rate" ) / 1000;
 335         pBitrate->set( UString::fromInt( getIntf(), bitrate ) );
 336
 337         // Get the audio sample rate
 338         int sampleRate = var_GetInteger( pInput, "sample-rate" ) / 1000;
 339         pSampleRate->set( UString::fromInt( getIntf(), sampleRate ) );
 340
 341         // Do we have audio
 342         vlc_value_t audio_es;
 343         var_Change( pInput, "audio-es", VLC_VAR_CHOICESCOUNT,
 344                         &audio_es, NULL );
 345         pVarHasAudio->set( audio_es.i_int > 0 );
 346
 347         // Refresh fullscreen status
 348         vout_thread_t *pVout = input_GetVout( pInput );
 349         pVarHasVout->set( pVout != NULL );
 350         if( pVout )
 351         {
 352             pVarFullscreen->set( var_GetBool( pVout, "fullscreen" ) );
 353             vlc_object_release( pVout );
 354         }
 355
 356         // Refresh play/pause status
 357         int state = var_GetInteger( pInput, "state" );
 358         pVarStopped->set( false );
 359         pVarPlaying->set( state != PAUSE_S );
 360         pVarPaused->set( state == PAUSE_S );
 361     }
 362     else
 363     {
 364         pVarSeekable->set( false );
 365         pVarDvdActive->set( false );
 366         pTime->set( 0, false );
 367         pVarFullscreen->set( false );
 368         pVarHasAudio->set( false );
 369         pVarHasVout->set( false );
 370         pVarStopped->set( true );
 371         pVarPlaying->set( false );
 372         pVarPaused->set( false );
 373     }
 374 }
 375
 376 int VlcProc::onIntfChange( vlc_object_t *pObj, const char *pVariable,
 377                            vlc_value_t oldVal, vlc_value_t newVal,
 378                            void *pParam )
 379 {
 380     VlcProc *pThis = (VlcProc*)pParam;
 381
 382     // Update the stream variable
 383     pThis->updateStreamName();
 384
 385     // Create a playtree notify command (for new style playtree)
 386     CmdPlaytreeChanged *pCmdTree = new CmdPlaytreeChanged( pThis->getIntf() );
 387
 388     // Push the command in the asynchronous command queue
 389     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 390     pQueue->push( CmdGenericPtr( pCmdTree ) );
 391
 392     return VLC_SUCCESS;
 393 }
 394
 395
 396 int VlcProc::onIntfShow( vlc_object_t *pObj, const char *pVariable,
 397                          vlc_value_t oldVal, vlc_value_t newVal,
 398                          void *pParam )
 399 {
 400     if (newVal.b_bool)
 401     {
 402         VlcProc *pThis = (VlcProc*)pParam;
 403
 404         // Create a raise all command
 405         CmdRaiseAll *pCmd = new CmdRaiseAll( pThis->getIntf(),
 406             pThis->getIntf()->p_sys->p_theme->getWindowManager() );
 407
 408         // Push the command in the asynchronous command queue
 409         AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 410         pQueue->push( CmdGenericPtr( pCmd ) );
 411     }
 412
 413     return VLC_SUCCESS;
 414 }
 415
 416
 417 int VlcProc::onItemChange( vlc_object_t *pObj, const char *pVariable,
 418                            vlc_value_t oldval, vlc_value_t newval,
 419                            void *pParam )
 420 {
 421     VlcProc *pThis = (VlcProc*)pParam;
 422     input_item_t *p_item = static_cast<input_item_t*>(newval.p_address);
 423
 424     // Update the stream variable
 425     pThis->updateStreamName();
 426
 427     // Create a playtree notify command
 428     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(),
 429                                                          p_item->i_id );
 430
 431     // Push the command in the asynchronous command queue
 432     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 433     pQueue->push( CmdGenericPtr( pCmdTree ), true );
 434
 435     return VLC_SUCCESS;
 436 }
 437
 438 int VlcProc::onItemAppend( vlc_object_t *pObj, const char *pVariable,
 439                            vlc_value_t oldVal, vlc_value_t newVal,
 440                            void *pParam )
 441 {
 442     VlcProc *pThis = (VlcProc*)pParam;
 443
 444     playlist_add_t *p_add = (playlist_add_t*)malloc( sizeof(
 445                                                 playlist_add_t ) ) ;
 446
 447     memcpy( p_add, newVal.p_address, sizeof( playlist_add_t ) ) ;
 448
 449     CmdGenericPtr ptrTree;
 450     CmdPlaytreeAppend *pCmdTree = new CmdPlaytreeAppend( pThis->getIntf(),
 451                                                              p_add );
 452     ptrTree = CmdGenericPtr( pCmdTree );
 453
 454     // Push the command in the asynchronous command queue
 455     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 456     pQueue->push( ptrTree , false );
 457
 458     return VLC_SUCCESS;
 459 }
 460
 461 int VlcProc::onItemDelete( vlc_object_t *pObj, const char *pVariable,
 462                            vlc_value_t oldVal, vlc_value_t newVal,
 463                            void *pParam )
 464 {
 465     VlcProc *pThis = (VlcProc*)pParam;
 466
 467     int i_id = newVal.i_int;
 468
 469     CmdGenericPtr ptrTree;
 470     CmdPlaytreeDelete *pCmdTree = new CmdPlaytreeDelete( pThis->getIntf(),
 471                                                          i_id);
 472     ptrTree = CmdGenericPtr( pCmdTree );
 473
 474     // Push the command in the asynchronous command queue
 475     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 476     pQueue->push( ptrTree , false );
 477
 478     return VLC_SUCCESS;
 479 }
 480
 481
 482 int VlcProc::onPlaylistChange( vlc_object_t *pObj, const char *pVariable,
 483                                vlc_value_t oldval, vlc_value_t newval,
 484                                void *pParam )
 485 {
 486     VlcProc *pThis = (VlcProc*)pParam;
 487     input_item_t *p_item = static_cast<input_item_t*>(newval.p_address);
 488
 489     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 490
 491     // Update the stream variable
 492     pThis->updateStreamName();
 493
 494     // Create two playtree notify commands: one for old item, one for new
 495 #if 0 /* FIXME: Heck, no! You cannot do that.
 496          There is no warranty that the old item is still valid. */
 497     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(),
 498                                                          oldVal.i_int );
 499     pQueue->push( CmdGenericPtr( pCmdTree ) , true );
 500 #endif
 501     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(), p_item->i_id );
 502     pQueue->push( CmdGenericPtr( pCmdTree ) , true );
 503
 504     return VLC_SUCCESS;
 505 }
 506
 507
 508 int VlcProc::onSkinToLoad( vlc_object_t *pObj, const char *pVariable,
 509                            vlc_value_t oldVal, vlc_value_t newVal,
 510                            void *pParam )
 511 {
 512     VlcProc *pThis = (VlcProc*)pParam;
 513
 514     // Create a playlist notify command
 515     CmdChangeSkin *pCmd =
 516         new CmdChangeSkin( pThis->getIntf(), newVal.psz_string );
 517
 518     // Push the command in the asynchronous command queue
 519     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 520     pQueue->push( CmdGenericPtr( pCmd ) );
 521
 522     return VLC_SUCCESS;
 523 }
 524
 525 int VlcProc::onInteraction( vlc_object_t *pObj, const char *pVariable,
 526                             vlc_value_t oldVal, vlc_value_t newVal,
 527                             void *pParam )
 528 {
 529     VlcProc *pThis = (VlcProc*)pParam;
 530     interaction_dialog_t *p_dialog = (interaction_dialog_t *)(newVal.p_address);
 531
 532     CmdInteraction *pCmd = new CmdInteraction( pThis->getIntf(), p_dialog );
 533     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 534     pQueue->push( CmdGenericPtr( pCmd ) );
 535     return VLC_SUCCESS;
 536 }
 537
 538
 539 void VlcProc::updateStreamName()
 540 {
 541     // Create a update item command
 542     CmdUpdateItem *pCmdItem = new CmdUpdateItem( getIntf(), getStreamNameVar(), getStreamURIVar() );
 543
 544     // Push the command in the asynchronous command queue
 545     AsyncQueue *pQueue = AsyncQueue::instance( getIntf() );
 546     pQueue->push( CmdGenericPtr( pCmdItem ) );
 547 }
 548
 549 int VlcProc::onEqBandsChange( vlc_object_t *pObj, const char *pVariable,
 550                               vlc_value_t oldVal, vlc_value_t newVal,
 551                               void *pParam )
 552 {
 553     VlcProc *pThis = (VlcProc*)pParam;
 554
 555     // Post a set equalizer bands command
 556     CmdSetEqBands *pCmd = new CmdSetEqBands( pThis->getIntf(),
 557                                              pThis->m_varEqBands,
 558                                              newVal.psz_string );
 559     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 560     pQueue->push( CmdGenericPtr( pCmd ) );
 561
 562     return VLC_SUCCESS;
 563 }
 564
 565
 566 int VlcProc::onEqPreampChange( vlc_object_t *pObj, const char *pVariable,
 567                                vlc_value_t oldVal, vlc_value_t newVal,
 568                                void *pParam )
 569 {
 570     VlcProc *pThis = (VlcProc*)pParam;
 571     EqualizerPreamp *pVarPreamp = (EqualizerPreamp*)(pThis->m_cVarEqPreamp.get());
 572
 573     // Post a set preamp command
 574     CmdSetEqPreamp *pCmd = new CmdSetEqPreamp( pThis->getIntf(), *pVarPreamp,
 575                                               (newVal.f_float + 20.0) / 40.0 );
 576     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 577     pQueue->push( CmdGenericPtr( pCmd ) );
 578
 579     return VLC_SUCCESS;
 580 }
 581