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