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Equalizer component

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This commit is contained in:
Clément Stenac 2006-09-17 21:26:43 +00:00
parent ed5b3247d8
commit 41c53c385e
4 changed files with 277 additions and 1 deletions
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4
modules/gui/qt4/Modules.am
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@ -29,6 +29,7 @@ TOMOC = main_interface \
dialogs/errors \
dialogs/streaminfo \
dialogs/interaction \
components/equalizer \
components/infopanels \
components/preferences_widgets \
components/preferences \
@ -53,6 +54,7 @@ nodist_SOURCES_qt4 = \
dialogs/errors.moc.cpp \
dialogs/prefs_dialog.moc.cpp \
dialogs/interaction.moc.cpp \
components/equalizer.moc.cpp \
components/infopanels.moc.cpp \
components/preferences_widgets.moc.cpp \
components/preferences.moc.cpp \
@ -97,6 +99,7 @@ SOURCES_qt4 = qt4.cpp \
dialogs/messages.cpp \
dialogs/errors.cpp \
dialogs/interaction.cpp \
components/equalizer.cpp \
components/infopanels.cpp \
components/preferences_widgets.cpp \
components/preferences.cpp \
@ -123,6 +126,7 @@ EXTRA_DIST += \
dialogs/errors.hpp \
dialogs/prefs_dialog.hpp \
dialogs/interaction.hpp \
components/equalizer.hpp \
components/infopanels.hpp \
components/preferences_widgets.hpp \
components/preferences.hpp \

214
modules/gui/qt4/components/equalizer.cpp Normal file
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@ -0,0 +1,214 @@
/*****************************************************************************
* equalizer.cpp : Equalizer
****************************************************************************
* Copyright (C) 2006 the VideoLAN team
* $Id: preferences.cpp 16643 2006-09-13 12:45:46Z zorglub $
*
* Authors: Clément Stenac <zorglub@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include <QLabel>
#include <QVariant>
#include <QString>
#include <QFont>
#include <QGridLayout>
#include "components/equalizer.hpp"
#include "qt4.hpp"
#include "../../audio_filter/equalizer_presets.h"
#include <audio_output.h>
#include <aout_internal.h>
#include <vlc_intf_strings.h>
#include <assert.h>
static const QString band_frequencies[] =
{
" 60Hz", "170 Hz", "310 Hz", "600 Hz", " 1 kHz",
" 3 kHz", " 6 kHz", "12 kHz", "14 kHz", "16 kHz"
};
Equalizer::Equalizer( intf_thread_t *_p_intf, QWidget *_parent ) :
QWidget( _parent ) , p_intf( _p_intf )
{
ui.setupUi( this );
for( int i = 0 ; i < NB_PRESETS ; i ++ )
{
ui.presetsCombo->addItem( qfu( preset_list_text[i] ),
QVariant( i ) );
}
CONNECT( ui.presetsCombo, activated( int ), this, setPreset( int ) );
for( int i = 0 ; i < BANDS ; i++ )
{
QGridLayout *grid = new QGridLayout( this );
bands[i] = new QSlider( Qt::Horizontal, this );
bands[i]->setMaximum( 400 );
band_texts[i] = new QLabel( band_frequencies[i] + "\n0.0dB" );
grid->addWidget( bands[i], 0, i );
grid->addWidget( band_texts[i], 1, i );
}
}
Equalizer::~Equalizer()
{
}
void Equalizer::enable()
{
bool en = ui.enableCheck->isChecked();
aout_EnableFilter( VLC_OBJECT( p_intf ), "equalizer",
en ? VLC_TRUE : VLC_FALSE );
ui.eq2PassCheck->setEnabled( en );
ui.preampSlider->setEnabled( en );
for( int i = 0 ; i< BANDS; i++ )
{
bands[i]->setEnabled( en ); band_texts[i]->setEnabled( en );
}
}
void Equalizer::set2Pass()
{
aout_instance_t *p_aout= (aout_instance_t *)vlc_object_find(p_intf,
VLC_OBJECT_AOUT, FIND_ANYWHERE);
vlc_bool_t b_2p = ui.eq2PassCheck->isChecked();
if( p_aout == NULL )
config_PutInt( p_intf, "equalizer-2pass", b_2p );
else
{
var_SetBool( p_aout, "equalizer-2pass", b_2p );
config_PutInt( p_intf, "equalizer-2pass", b_2p );
for( int i = 0; i < p_aout->i_nb_inputs; i++ )
{
p_aout->pp_inputs[i]->b_restart = VLC_TRUE;
}
vlc_object_release( p_aout );
}
}
void Equalizer::setPreamp()
{
float f= (float)( 400 - ui.preampSlider->value() ) /10 - 20;
char psz_val[5];
aout_instance_t *p_aout= (aout_instance_t *)vlc_object_find(p_intf,
VLC_OBJECT_AOUT, FIND_ANYWHERE);
sprintf( psz_val, "%.1f", f );
ui.preampLabel->setText( qtr("Preamp\n") + psz_val + qtr("dB") );
if( p_aout )
{
delCallbacks( p_aout );
var_SetFloat( p_aout, "equalizer-preamp", f );
addCallbacks( p_aout );
vlc_object_release( p_aout );
}
config_PutFloat( p_intf, "equalizer-preamp", f );
}
void Equalizer::setBand()
{
char psz_values[102]; memset( psz_values, 0, 102 );
/**\todo smoothing */
for( int i = 0 ; i< BANDS ; i++ )
{
char psz_val[5];
float f_val = (float)( 400 - bands[i]->value() ) / 10 - 20 ;
sprintf( psz_values, "%s %f", psz_values, f_val );
sprintf( psz_val, "%.1f", f_val );
band_texts[i]->setText( band_frequencies[i] + "\n" + psz_val + "dB" );
}
aout_instance_t *p_aout= (aout_instance_t *)vlc_object_find(p_intf,
VLC_OBJECT_AOUT, FIND_ANYWHERE);
if( p_aout )
{
delCallbacks( p_aout );
var_SetString( p_aout, "equalizer-bands", psz_values );
addCallbacks( p_aout );
vlc_object_release( p_aout );
}
}
void Equalizer::setValues( char *psz_bands, float f_preamp )
{
char *p = psz_bands;
for( int i = 0; i < 10; i++ )
{
char psz_val[5];
float f = strtof( p, &p );
int i_val= (int)( ( f + 20 ) * 10 );
bands[i]->setValue( 400 - i_val );
sprintf( psz_val, "%.1f", f );
band_texts[i]->setText( band_frequencies[i] + "\n" + psz_val + "dB" );
if( p == NULL ) break;
p++;
if( *p == 0 ) break;
}
char psz_val[5];
int i_val = (int)( ( f_preamp + 20 ) * 10 );
sprintf( psz_val, "%.1f", f_preamp );
ui.preampSlider->setValue( 400 - i_val );
ui.preampLabel->setText( qtr("Preamp\n") + psz_val + qtr("dB") );
}
void Equalizer::setPreset( int preset )
{
aout_instance_t *p_aout= (aout_instance_t *)vlc_object_find(p_intf,
VLC_OBJECT_AOUT, FIND_ANYWHERE);
char psz_values[102]; memset( psz_values, 0, 102 );
for( int i = 0 ; i< 10 ;i++ )
sprintf( psz_values, "%s %.1f", psz_values,
eqz_preset_10b[preset]->f_amp[i] );
if( p_aout )
{
delCallbacks( p_aout );
var_SetString( p_aout, "equalizer-bands", psz_values );
var_SetFloat( p_aout, "equalizer-preamp",
eqz_preset_10b[preset]->f_preamp );
addCallbacks( p_aout );
vlc_object_release( p_aout );
}
config_PutPsz( p_intf, "equalizer-bands", psz_values );
config_PutFloat( p_intf, "equalizer-preamp",
eqz_preset_10b[preset]->f_preamp );
setValues( psz_values, eqz_preset_10b[preset]->f_preamp );
}
void Equalizer::delCallbacks( aout_instance_t *p_aout )
{
// var_DelCallback( p_aout, "equalizer-bands", EqzCallback, this );
// var_DelCallback( p_aout, "equalizer-preamp", EqzCallback, this );
}
void Equalizer::addCallbacks( aout_instance_t *p_aout )
{
// var_AddCallback( p_aout, "equalizer-bands", EqzCallback, this );
// var_AddCallback( p_aout, "equalizer-preamp", EqzCallback, this );
}

58
modules/gui/qt4/components/equalizer.hpp Normal file
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@ -0,0 +1,58 @@
/*****************************************************************************
* preferences_tree.hpp : Tree of modules for preferences
****************************************************************************
* Copyright (C) 2006 the VideoLAN team
* $Id: preferences.hpp 16643 2006-09-13 12:45:46Z zorglub $
*
* Authors: Clément Stenac <zorglub@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef _EQUALIZER_H_
#define _EQUALIZER_H_
#include <vlc/vlc.h>
#include <vlc/aout.h>
#include "ui/equalizer.h"
#define BANDS 10
class Equalizer: public QWidget
{
Q_OBJECT
public:
Equalizer( intf_thread_t *, QWidget * );
virtual ~Equalizer();
private:
Ui::EqualizerWidget ui;
QSlider *bands[BANDS];
QLabel *band_texts[BANDS];
void delCallbacks( aout_instance_t * );
void addCallbacks( aout_instance_t * );
void setValues( char *, float );
intf_thread_t *p_intf;
private slots:
void enable();
void set2Pass();
void setPreamp();
void setBand();
void setPreset(int);
};
#endif

2
modules/gui/qt4/ui/equalizer.ui
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@ -85,7 +85,7 @@
<number>6</number>
</property>
<item row="1" column="0" >
<widget class="QLabel" name="label_2" >
<widget class="QLabel" name="preampLabel" >
<property name="text" >
<string>Preamp</string>
</property>