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     if( pIntf->p_sys->p_vlcProc )
  69     {
  70         delete pIntf->p_sys->p_vlcProc;
  71         pIntf->p_sys->p_vlcProc = NULL;
  72     }
  73 }
  74
  75
  76 VlcProc::VlcProc( intf_thread_t *pIntf ): SkinObject( pIntf ),
  77     m_varVoutSize( pIntf ), m_varEqBands( pIntf ),
  78     m_pVout( NULL ), m_pAout( NULL ), m_cmdManage( this )
  79 {
  80     // Create a timer to poll the status of the vlc
  81     OSFactory *pOsFactory = OSFactory::instance( pIntf );
  82     m_pTimer = pOsFactory->createOSTimer( m_cmdManage );
  83     m_pTimer->start( 100, false );
  84
  85     // Create and register VLC variables
  86     VarManager *pVarManager = VarManager::instance( getIntf() );
  87
  88 #define REGISTER_VAR( var, type, name ) \
  89     var = VariablePtr( new type( getIntf() ) ); \
  90     pVarManager->registerVar( var, name );
  91     REGISTER_VAR( m_cVarRandom, VarBoolImpl, "playlist.isRandom" )
  92     REGISTER_VAR( m_cVarLoop, VarBoolImpl, "playlist.isLoop" )
  93     REGISTER_VAR( m_cVarRepeat, VarBoolImpl, "playlist.isRepeat" )
  94     REGISTER_VAR( m_cPlaytree, Playtree, "playtree" )
  95     pVarManager->registerVar( getPlaytreeVar().getPositionVarPtr(),
  96                               "playtree.slider" );
  97     pVarManager->registerVar( m_cVarRandom, "playtree.isRandom" );
  98     pVarManager->registerVar( m_cVarLoop, "playtree.isLoop" );
  99
 100     REGISTER_VAR( m_cVarPlaying, VarBoolImpl, "vlc.isPlaying" )
 101     REGISTER_VAR( m_cVarStopped, VarBoolImpl, "vlc.isStopped" )
 102     REGISTER_VAR( m_cVarPaused, VarBoolImpl, "vlc.isPaused" )
 103
 104     /* Input variables */
 105     pVarManager->registerVar( m_cVarRepeat, "playtree.isRepeat" );
 106     REGISTER_VAR( m_cVarTime, StreamTime, "time" )
 107     REGISTER_VAR( m_cVarSeekable, VarBoolImpl, "vlc.isSeekable" )
 108     REGISTER_VAR( m_cVarDvdActive, VarBoolImpl, "dvd.isActive" )
 109
 110     /* Vout variables */
 111     REGISTER_VAR( m_cVarFullscreen, VarBoolImpl, "vlc.isFullscreen" )
 112     REGISTER_VAR( m_cVarHasVout, VarBoolImpl, "vlc.hasVout" )
 113
 114     /* Aout variables */
 115     REGISTER_VAR( m_cVarHasAudio, VarBoolImpl, "vlc.hasAudio" )
 116     REGISTER_VAR( m_cVarVolume, Volume, "volume" )
 117     REGISTER_VAR( m_cVarMute, VarBoolImpl, "vlc.isMute" )
 118     REGISTER_VAR( m_cVarEqualizer, VarBoolImpl, "equalizer.isEnabled" )
 119     REGISTER_VAR( m_cVarEqPreamp, EqualizerPreamp, "equalizer.preamp" )
 120
 121 #undef REGISTER_VAR
 122     m_cVarStreamName = VariablePtr( new VarText( getIntf(), false ) );
 123     pVarManager->registerVar( m_cVarStreamName, "streamName" );
 124     m_cVarStreamURI = VariablePtr( new VarText( getIntf(), false ) );
 125     pVarManager->registerVar( m_cVarStreamURI, "streamURI" );
 126     m_cVarStreamBitRate = VariablePtr( new VarText( getIntf(), false ) );
 127     pVarManager->registerVar( m_cVarStreamBitRate, "bitrate" );
 128     m_cVarStreamSampleRate = VariablePtr( new VarText( getIntf(), false ) );
 129     pVarManager->registerVar( m_cVarStreamSampleRate, "samplerate" );
 130
 131     // Register the equalizer bands
 132     for( int i = 0; i < EqualizerBands::kNbBands; i++)
 133     {
 134         stringstream ss;
 135         ss << "equalizer.band(" << i << ")";
 136         pVarManager->registerVar( m_varEqBands.getBand( i ), ss.str() );
 137     }
 138
 139     // XXX WARNING XXX
 140     // The object variable callbacks are called from other VLC threads,
 141     // so they must put commands in the queue and NOT do anything else
 142     // (X11 calls are not reentrant)
 143
 144     // Called when the playlist changes
 145     var_AddCallback( pIntf->p_sys->p_playlist, "intf-change",
 146                      onIntfChange, this );
 147     // Called when a playlist item is added
 148     var_AddCallback( pIntf->p_sys->p_playlist, "playlist-item-append",
 149                      onItemAppend, this );
 150     // Called when a playlist item is deleted
 151     // TODO: properly handle item-deleted
 152     var_AddCallback( pIntf->p_sys->p_playlist, "playlist-item-deleted",
 153                      onItemDelete, this );
 154     // Called when the "interface shower" wants us to show the skin
 155     var_AddCallback( pIntf->p_libvlc, "intf-show",
 156                      onIntfShow, this );
 157     // Called when the current played item changes
 158     var_AddCallback( pIntf->p_sys->p_playlist, "item-current",
 159                      onPlaylistChange, this );
 160     // Called when a playlist item changed
 161     var_AddCallback( pIntf->p_sys->p_playlist, "item-change",
 162                      onItemChange, this );
 163     // Called when our skins2 demux wants us to load a new skin
 164     var_AddCallback( pIntf, "skin-to-load", onSkinToLoad, this );
 165
 166     // Called when we have an interaction dialog to display
 167     var_Create( pIntf, "interaction", VLC_VAR_ADDRESS );
 168     var_AddCallback( pIntf, "interaction", onInteraction, this );
 169     interaction_Register( pIntf );
 170
 171     getIntf()->p_sys->p_input = NULL;
 172 }
 173
 174
 175 VlcProc::~VlcProc()
 176 {
 177     m_pTimer->stop();
 178     delete( m_pTimer );
 179     if( getIntf()->p_sys->p_input )
 180     {
 181         vlc_object_release( getIntf()->p_sys->p_input );
 182         getIntf()->p_sys->p_input = NULL;
 183     }
 184
 185     interaction_Unregister( getIntf() );
 186
 187     var_DelCallback( getIntf()->p_sys->p_playlist, "intf-change",
 188                      onIntfChange, this );
 189     var_DelCallback( getIntf()->p_sys->p_playlist, "playlist-item-append",
 190                      onItemAppend, this );
 191     var_DelCallback( getIntf()->p_sys->p_playlist, "playlist-item-deleted",
 192                      onItemDelete, this );
 193     var_DelCallback( getIntf()->p_libvlc, "intf-show",
 194                      onIntfShow, this );
 195     var_DelCallback( getIntf()->p_sys->p_playlist, "item-current",
 196                      onPlaylistChange, this );
 197     var_DelCallback( getIntf()->p_sys->p_playlist, "item-change",
 198                      onItemChange, this );
 199     var_DelCallback( getIntf(), "skin-to-load", onSkinToLoad, this );
 200     var_DelCallback( getIntf(), "interaction", onInteraction, this );
 201 }
 202
 203 void VlcProc::manage()
 204 {
 205     // Did the user request to quit vlc ?
 206     if( !vlc_object_alive( getIntf() ) )
 207     {
 208         // Get the instance of OSFactory
 209         OSFactory *pOsFactory = OSFactory::instance( getIntf() );
 210
 211         // Exit the main OS loop
 212         pOsFactory->getOSLoop()->exit();
 213
 214         return;
 215     }
 216
 217     refreshPlaylist();
 218     refreshAudio();
 219     refreshInput();
 220 }
 221
 222 void VlcProc::CmdManage::execute()
 223 {
 224     // Just forward to VlcProc
 225     m_pParent->manage();
 226 }
 227
 228 void VlcProc::refreshAudio()
 229 {
 230     char *pFilters;
 231
 232     // Check if the audio output has changed
 233     aout_instance_t *pAout = (aout_instance_t *)vlc_object_find( getIntf(),
 234             VLC_OBJECT_AOUT, FIND_ANYWHERE );
 235     if( pAout )
 236     {
 237         if( pAout != m_pAout )
 238         {
 239             // Register the equalizer callbacks
 240             if( !var_AddCallback( pAout, "equalizer-bands",
 241                                   onEqBandsChange, this ) &&
 242                 !var_AddCallback( pAout, "equalizer-preamp",
 243                                   onEqPreampChange, this ) )
 244             {
 245                 m_pAout = pAout;
 246                 //char * psz_bands = var_GetString( p_aout, "equalizer-bands" );
 247             }
 248         }
 249         // Get the audio filters
 250         pFilters = var_GetNonEmptyString( pAout, "audio-filter" );
 251         vlc_object_release( pAout );
 252     }
 253     else
 254     {
 255         // Get the audio filters
 256         pFilters = config_GetPsz( getIntf(), "audio-filter" );
 257     }
 258
 259     // Refresh sound volume
 260     audio_volume_t volume;
 261     aout_VolumeGet( getIntf()->p_sys->p_playlist, &volume );
 262     Volume *pVolume = (Volume*)m_cVarVolume.get();
 263     pVolume->set( (double)volume * 2.0 / AOUT_VOLUME_MAX );
 264
 265     // Set the mute variable
 266     VarBoolImpl *pVarMute = (VarBoolImpl*)m_cVarMute.get();
 267     pVarMute->set( volume == 0 );
 268
 269     // Refresh the equalizer variable
 270     VarBoolImpl *pVarEqualizer = (VarBoolImpl*)m_cVarEqualizer.get();
 271     pVarEqualizer->set( pFilters && strstr( pFilters, "equalizer" ) );
 272     free( pFilters );
 273 }
 274
 275 void VlcProc::refreshPlaylist()
 276 {
 277     // Refresh the random variable
 278     VarBoolImpl *pVarRandom = (VarBoolImpl*)m_cVarRandom.get();
 279     vlc_value_t val;
 280     var_Get( getIntf()->p_sys->p_playlist, "random", &val );
 281     pVarRandom->set( val.b_bool != 0 );
 282
 283     // Refresh the loop variable
 284     VarBoolImpl *pVarLoop = (VarBoolImpl*)m_cVarLoop.get();
 285     var_Get( getIntf()->p_sys->p_playlist, "loop", &val );
 286     pVarLoop->set( val.b_bool != 0 );
 287
 288     // Refresh the repeat variable
 289     VarBoolImpl *pVarRepeat = (VarBoolImpl*)m_cVarRepeat.get();
 290     var_Get( getIntf()->p_sys->p_playlist, "repeat", &val );
 291     pVarRepeat->set( val.b_bool != 0 );
 292 }
 293
 294 void VlcProc::refreshInput()
 295 {
 296     StreamTime *pTime = (StreamTime*)m_cVarTime.get();
 297     VarBoolImpl *pVarSeekable = (VarBoolImpl*)m_cVarSeekable.get();
 298     VarBoolImpl *pVarDvdActive = (VarBoolImpl*)m_cVarDvdActive.get();
 299     VarBoolImpl *pVarHasVout = (VarBoolImpl*)m_cVarHasVout.get();
 300     VarBoolImpl *pVarHasAudio = (VarBoolImpl*)m_cVarHasAudio.get();
 301     VarText *pBitrate = (VarText*)m_cVarStreamBitRate.get();
 302     VarText *pSampleRate = (VarText*)m_cVarStreamSampleRate.get();
 303     VarBoolImpl *pVarFullscreen = (VarBoolImpl*)m_cVarFullscreen.get();
 304     VarBoolImpl *pVarPlaying = (VarBoolImpl*)m_cVarPlaying.get();
 305     VarBoolImpl *pVarStopped = (VarBoolImpl*)m_cVarStopped.get();
 306     VarBoolImpl *pVarPaused = (VarBoolImpl*)m_cVarPaused.get();
 307
 308     // Update the input
 309     if( getIntf()->p_sys->p_input == NULL )
 310     {
 311         getIntf()->p_sys->p_input =
 312             playlist_CurrentInput( getIntf()->p_sys->p_playlist );
 313     }
 314     else if( getIntf()->p_sys->p_input->b_dead )
 315     {
 316         vlc_object_release( getIntf()->p_sys->p_input );
 317         getIntf()->p_sys->p_input = NULL;
 318     }
 319
 320     input_thread_t *pInput = getIntf()->p_sys->p_input;
 321
 322     if( pInput && vlc_object_alive (pInput) )
 323     {
 324         // Refresh time variables
 325         vlc_value_t pos;
 326         var_Get( pInput, "position", &pos );
 327         pTime->set( pos.f_float, false );
 328         pVarSeekable->set( pos.f_float != 0.0 );
 329
 330         // Refresh DVD detection
 331         vlc_value_t chapters_count;
 332         var_Change( pInput, "chapter", VLC_VAR_CHOICESCOUNT,
 333                         &chapters_count, NULL );
 334         pVarDvdActive->set( chapters_count.i_int > 0 );
 335
 336         // Get the input bitrate
 337         int bitrate = var_GetInteger( pInput, "bit-rate" ) / 1000;
 338         pBitrate->set( UString::fromInt( getIntf(), bitrate ) );
 339
 340         // Get the audio sample rate
 341         int sampleRate = var_GetInteger( pInput, "sample-rate" ) / 1000;
 342         pSampleRate->set( UString::fromInt( getIntf(), sampleRate ) );
 343
 344         // Do we have audio
 345         vlc_value_t audio_es;
 346         var_Change( pInput, "audio-es", VLC_VAR_CHOICESCOUNT,
 347                         &audio_es, NULL );
 348         pVarHasAudio->set( audio_es.i_int > 0 );
 349
 350         // Refresh fullscreen status
 351         vout_thread_t *pVout = input_GetVout( pInput );
 352         pVarHasVout->set( pVout != NULL );
 353         if( pVout )
 354         {
 355             pVarFullscreen->set( var_GetBool( pVout, "fullscreen" ) );
 356             vlc_object_release( pVout );
 357         }
 358
 359         // Refresh play/pause status
 360         int state = var_GetInteger( pInput, "state" );
 361         pVarStopped->set( false );
 362         pVarPlaying->set( state != PAUSE_S );
 363         pVarPaused->set( state == PAUSE_S );
 364     }
 365     else
 366     {
 367         pVarSeekable->set( false );
 368         pVarDvdActive->set( false );
 369         pTime->set( 0, false );
 370         pVarFullscreen->set( false );
 371         pVarHasAudio->set( false );
 372         pVarHasVout->set( false );
 373         pVarStopped->set( true );
 374         pVarPlaying->set( false );
 375         pVarPaused->set( false );
 376     }
 377 }
 378
 379 int VlcProc::onIntfChange( vlc_object_t *pObj, const char *pVariable,
 380                            vlc_value_t oldVal, vlc_value_t newVal,
 381                            void *pParam )
 382 {
 383     VlcProc *pThis = (VlcProc*)pParam;
 384
 385     // Update the stream variable
 386     pThis->updateStreamName();
 387
 388     // Create a playtree notify command (for new style playtree)
 389     CmdPlaytreeChanged *pCmdTree = new CmdPlaytreeChanged( pThis->getIntf() );
 390
 391     // Push the command in the asynchronous command queue
 392     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 393     pQueue->push( CmdGenericPtr( pCmdTree ) );
 394
 395     return VLC_SUCCESS;
 396 }
 397
 398
 399 int VlcProc::onIntfShow( vlc_object_t *pObj, const char *pVariable,
 400                          vlc_value_t oldVal, vlc_value_t newVal,
 401                          void *pParam )
 402 {
 403     if (newVal.b_bool)
 404     {
 405         VlcProc *pThis = (VlcProc*)pParam;
 406
 407         // Create a raise all command
 408         CmdRaiseAll *pCmd = new CmdRaiseAll( pThis->getIntf(),
 409             pThis->getIntf()->p_sys->p_theme->getWindowManager() );
 410
 411         // Push the command in the asynchronous command queue
 412         AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 413         pQueue->push( CmdGenericPtr( pCmd ) );
 414     }
 415
 416     return VLC_SUCCESS;
 417 }
 418
 419
 420 int VlcProc::onItemChange( vlc_object_t *pObj, const char *pVariable,
 421                            vlc_value_t oldval, vlc_value_t newval,
 422                            void *pParam )
 423 {
 424     VlcProc *pThis = (VlcProc*)pParam;
 425     input_item_t *p_item = static_cast<input_item_t*>(newval.p_address);
 426
 427     // Update the stream variable
 428     pThis->updateStreamName();
 429
 430     // Create a playtree notify command
 431     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(),
 432                                                          p_item->i_id );
 433
 434     // Push the command in the asynchronous command queue
 435     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 436     pQueue->push( CmdGenericPtr( pCmdTree ), true );
 437
 438     return VLC_SUCCESS;
 439 }
 440
 441 int VlcProc::onItemAppend( vlc_object_t *pObj, const char *pVariable,
 442                            vlc_value_t oldVal, vlc_value_t newVal,
 443                            void *pParam )
 444 {
 445     VlcProc *pThis = (VlcProc*)pParam;
 446
 447     playlist_add_t *p_add = (playlist_add_t*)malloc( sizeof(
 448                                                 playlist_add_t ) ) ;
 449
 450     memcpy( p_add, newVal.p_address, sizeof( playlist_add_t ) ) ;
 451
 452     CmdGenericPtr ptrTree;
 453     CmdPlaytreeAppend *pCmdTree = new CmdPlaytreeAppend( pThis->getIntf(),
 454                                                              p_add );
 455     ptrTree = CmdGenericPtr( pCmdTree );
 456
 457     // Push the command in the asynchronous command queue
 458     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 459     pQueue->push( ptrTree , false );
 460
 461     return VLC_SUCCESS;
 462 }
 463
 464 int VlcProc::onItemDelete( vlc_object_t *pObj, const char *pVariable,
 465                            vlc_value_t oldVal, vlc_value_t newVal,
 466                            void *pParam )
 467 {
 468     VlcProc *pThis = (VlcProc*)pParam;
 469
 470     int i_id = newVal.i_int;
 471
 472     CmdGenericPtr ptrTree;
 473     CmdPlaytreeDelete *pCmdTree = new CmdPlaytreeDelete( pThis->getIntf(),
 474                                                          i_id);
 475     ptrTree = CmdGenericPtr( pCmdTree );
 476
 477     // Push the command in the asynchronous command queue
 478     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 479     pQueue->push( ptrTree , false );
 480
 481     return VLC_SUCCESS;
 482 }
 483
 484
 485 int VlcProc::onPlaylistChange( vlc_object_t *pObj, const char *pVariable,
 486                                vlc_value_t oldval, vlc_value_t newval,
 487                                void *pParam )
 488 {
 489     VlcProc *pThis = (VlcProc*)pParam;
 490     input_item_t *p_item = static_cast<input_item_t*>(newval.p_address);
 491
 492     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 493
 494     // Update the stream variable
 495     pThis->updateStreamName();
 496
 497     // Create two playtree notify commands: one for old item, one for new
 498 #if 0 /* FIXME: Heck, no! You cannot do that.
 499          There is no warranty that the old item is still valid. */
 500     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(),
 501                                                          oldVal.i_int );
 502     pQueue->push( CmdGenericPtr( pCmdTree ) , true );
 503 #endif
 504     CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(), p_item->i_id );
 505     pQueue->push( CmdGenericPtr( pCmdTree ) , true );
 506
 507     return VLC_SUCCESS;
 508 }
 509
 510
 511 int VlcProc::onSkinToLoad( vlc_object_t *pObj, const char *pVariable,
 512                            vlc_value_t oldVal, vlc_value_t newVal,
 513                            void *pParam )
 514 {
 515     VlcProc *pThis = (VlcProc*)pParam;
 516
 517     // Create a playlist notify command
 518     CmdChangeSkin *pCmd =
 519         new CmdChangeSkin( pThis->getIntf(), newVal.psz_string );
 520
 521     // Push the command in the asynchronous command queue
 522     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 523     pQueue->push( CmdGenericPtr( pCmd ) );
 524
 525     return VLC_SUCCESS;
 526 }
 527
 528 int VlcProc::onInteraction( vlc_object_t *pObj, const char *pVariable,
 529                             vlc_value_t oldVal, vlc_value_t newVal,
 530                             void *pParam )
 531 {
 532     VlcProc *pThis = (VlcProc*)pParam;
 533     interaction_dialog_t *p_dialog = (interaction_dialog_t *)(newVal.p_address);
 534
 535     CmdInteraction *pCmd = new CmdInteraction( pThis->getIntf(), p_dialog );
 536     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 537     pQueue->push( CmdGenericPtr( pCmd ) );
 538     return VLC_SUCCESS;
 539 }
 540
 541
 542 void VlcProc::updateStreamName()
 543 {
 544     // Create a update item command
 545     CmdUpdateItem *pCmdItem = new CmdUpdateItem( getIntf(), getStreamNameVar(), getStreamURIVar() );
 546
 547     // Push the command in the asynchronous command queue
 548     AsyncQueue *pQueue = AsyncQueue::instance( getIntf() );
 549     pQueue->push( CmdGenericPtr( pCmdItem ) );
 550 }
 551
 552 int VlcProc::onEqBandsChange( vlc_object_t *pObj, const char *pVariable,
 553                               vlc_value_t oldVal, vlc_value_t newVal,
 554                               void *pParam )
 555 {
 556     VlcProc *pThis = (VlcProc*)pParam;
 557
 558     // Post a set equalizer bands command
 559     CmdSetEqBands *pCmd = new CmdSetEqBands( pThis->getIntf(),
 560                                              pThis->m_varEqBands,
 561                                              newVal.psz_string );
 562     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 563     pQueue->push( CmdGenericPtr( pCmd ) );
 564
 565     return VLC_SUCCESS;
 566 }
 567
 568
 569 int VlcProc::onEqPreampChange( vlc_object_t *pObj, const char *pVariable,
 570                                vlc_value_t oldVal, vlc_value_t newVal,
 571                                void *pParam )
 572 {
 573     VlcProc *pThis = (VlcProc*)pParam;
 574     EqualizerPreamp *pVarPreamp = (EqualizerPreamp*)(pThis->m_cVarEqPreamp.get());
 575
 576     // Post a set preamp command
 577     CmdSetEqPreamp *pCmd = new CmdSetEqPreamp( pThis->getIntf(), *pVarPreamp,
 578                                               (newVal.f_float + 20.0) / 40.0 );
 579     AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
 580     pQueue->push( CmdGenericPtr( pCmd ) );
 581
 582     return VLC_SUCCESS;
 583 }
 584