* Audio filters
**********************************************************************/
+/**********************************************************************
+ * Dynamic range compressor
+ **********************************************************************/
+static const char *psz_comp_control_names[] =
+{
+ "compressor-rms-peak", "compressor-attack", "compressor-release",
+ "compressor-threshold", "compressor-ratio", "compressor-knee",
+ "compressor-makeup-gain"
+};
+
+static const char *psz_comp_control_descs[] =
+{
+ "RMS/peak", "Attack",
+ "Release", "Threshold", "Ratio", "Knee\nradius", "Makeup\ngain"
+};
+
+static const char *psz_comp_control_units[] =
+{
+ "", " ms", " ms", " dB", ":1", " dB", " dB"
+};
+
+static const float f_comp_min_max_val_res_data[] =
+{
+ // min max value resolution
+ //---- ------ ------ ----------
+ 0.0f, 1.0f, 0.00f, 0.001f, // RMS/peak
+ 1.5f, 400.0f, 25.00f, 0.100f, // Attack
+ 2.0f, 800.0f, 100.00f, 0.100f, // Release
+ -30.0f, 0.0f, -11.00f, 0.010f, // Threshold
+ 1.0f, 20.0f, 8.00f, 0.010f, // Ratio
+ 1.0f, 10.0f, 2.50f, 0.010f, // Knee radius
+ 0.0f, 24.0f, 7.00f, 0.010f // Makeup gain
+};
+
+Compressor::Compressor( intf_thread_t *_p_intf, QWidget *_parent ) :
+ QWidget( _parent ) , p_intf( _p_intf )
+{
+ QFont smallFont = QApplication::font( static_cast<QWidget*>( 0 ) );
+ smallFont.setPointSize( smallFont.pointSize() - 3 );
+
+ QGridLayout *layout = new QGridLayout( this );
+ layout->setMargin( 0 );
+
+ enableCheck = new QCheckBox( qtr( "Enable dynamic range compressor" ) );
+ layout->addWidget( enableCheck, 0, 0, 1, NUM_CP_CTRL );
+
+ for( int i = 0 ; i < NUM_CP_CTRL ; i++ )
+ {
+ compCtrl[i] = new QSlider( Qt::Vertical );
+
+ const int i_min = (int)( f_comp_min_max_val_res_data[4 * i + 0]
+ / f_comp_min_max_val_res_data[4 * i + 3] );
+ const int i_max = (int)( f_comp_min_max_val_res_data[4 * i + 1]
+ / f_comp_min_max_val_res_data[4 * i + 3] );
+ const int i_val = (int)( f_comp_min_max_val_res_data[4 * i + 2]
+ / f_comp_min_max_val_res_data[4 * i + 3] );
+
+ compCtrl[i]->setMinimum( i_min );
+ compCtrl[i]->setMaximum( i_max );
+ compCtrl[i]->setValue( i_val );
+ oldControlVars[i] = f_comp_min_max_val_res_data[4 * i + 2];
+ CONNECT( compCtrl[i], valueChanged( int ), this, setInitValues() );
+ ctrl_texts[i] = new QLabel( qtr( psz_comp_control_descs[i] )
+ + qtr( "\n" ) );
+ ctrl_texts[i]->setFont( smallFont );
+ ctrl_texts[i]->setAlignment( Qt::AlignHCenter );
+ ctrl_readout[i] = new QLabel( qtr( "" ) );
+ ctrl_readout[i]->setFont( smallFont );
+ ctrl_readout[i]->setAlignment( Qt::AlignHCenter );
+ layout->addWidget( compCtrl[i], 1, i, Qt::AlignHCenter );
+ layout->addWidget( ctrl_readout[i], 2, i, Qt::AlignHCenter );
+ layout->addWidget( ctrl_texts[i], 3, i, Qt::AlignHCenter );
+ }
+
+ BUTTONACT( enableCheck, enable() );
+
+ /* Write down initial values */
+ aout_instance_t *p_aout = THEMIM->getAout();
+ char *psz_af;
+
+ if( p_aout )
+ {
+ psz_af = var_GetNonEmptyString( p_aout, "audio-filter" );
+ for( int i = 0; i < NUM_CP_CTRL; i++ )
+ {
+ controlVars[i] = var_GetFloat( p_aout,
+ psz_comp_control_names[i] );
+ }
+ vlc_object_release( p_aout );
+ }
+ else
+ {
+ psz_af = config_GetPsz( p_intf, "audio-filter" );
+ for( int i = 0; i < NUM_CP_CTRL; i++ )
+ {
+ controlVars[i] = config_GetFloat( p_intf,
+ psz_comp_control_names[i] );
+ }
+ }
+ if( psz_af && strstr( psz_af, "compressor" ) != NULL )
+ {
+ enableCheck->setChecked( true );
+ }
+ free( psz_af );
+ enable( enableCheck->isChecked() );
+ updateSliders( controlVars );
+ setValues( controlVars );
+}
+
+void Compressor::enable()
+{
+ bool en = enableCheck->isChecked();
+ aout_EnableFilter( THEPL, "compressor", en );
+ enable( en );
+}
+
+void Compressor::enable( bool en )
+{
+ for( int i = 0 ; i < NUM_CP_CTRL ; i++ )
+ {
+ compCtrl[i]->setEnabled( en );
+ ctrl_texts[i]->setEnabled( en );
+ ctrl_readout[i]->setEnabled( en );
+ }
+}
+
+void Compressor::updateSliders( float * controlVars )
+{
+ for( int i = 0 ; i < NUM_CP_CTRL ; i++ )
+ {
+ if( oldControlVars[i] != controlVars[i] )
+ {
+ const int i_val = (int)( controlVars[i]
+ / f_comp_min_max_val_res_data[4 * i + 3] );
+ compCtrl[i]->setValue( i_val );
+ }
+ }
+}
+
+void Compressor::setInitValues()
+{
+ setValues( controlVars );
+}
+
+void Compressor::setValues( float * controlVars )
+{
+ aout_instance_t *p_aout = THEMIM->getAout();
+
+ for( int i = 0 ; i < NUM_CP_CTRL ; i++ )
+ {
+ float f = (float)( compCtrl[i]->value() )
+ * ( f_comp_min_max_val_res_data[4 * i + 3] );
+ ctrl_readout[i]->setText( QString::number( f, 'f', 1 )
+ + qtr( psz_comp_control_units[i] ) );
+ if( oldControlVars[i] != f )
+ {
+ if( p_aout )
+ {
+ var_SetFloat( p_aout, psz_comp_control_names[i], f );
+ }
+ config_PutFloat( p_intf, psz_comp_control_names[i], f );
+ oldControlVars[i] = f;
+ }
+ }
+ if( p_aout )
+ {
+ vlc_object_release( p_aout );
+ }
+}
+
/**********************************************************************
* Spatializer
**********************************************************************/
projects / vlc / blobdiff