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/*
*
*
* Copyright (C) 2003-2009 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2009 Sebastian Trueg <trueg@k3b.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.
* See the file "COPYING" for the exact licensing terms.
*/
#include "k3boggvorbisencoderconfigwidget.h"
#include "k3boggvorbisencoderdefaults.h"
#include "k3bcore.h"
#include <KConfig>
#include <KDebug>
#include <KLocale>
#include <KNumInput>
#include <QCheckBox>
#include <QHBoxLayout>
#include <QLabel>
#include <QLayout>
#include <QLCDNumber>
#include <QRadioButton>
#include <QSlider>
#include <QToolTip>
K3B_EXPORT_PLUGIN_CONFIG_WIDGET( kcm_k3bexternalencoder, K3bOggVorbisEncoderSettingsWidget )
namespace {
// quality levels -1 to 10 map to 0 to 11
const int s_rough_average_quality_level_bitrates[] = {
45,
64,
80,
96,
112,
128,
160,
192,
224,
256,
320,
400
};
} // namespace
K3bOggVorbisEncoderSettingsWidget::K3bOggVorbisEncoderSettingsWidget( QWidget* parent, const QVariantList& args )
: K3b::PluginConfigWidget( parent, args )
{
w = new base_K3bOggVorbisEncoderSettingsWidget( this );
QString ttQuality = i18n("Controls the quality of the encoded files.");
QString wsQuality = i18n("<p>Vorbis' audio quality is not best measured in kilobits per second, "
"but on a scale from -1 to 10 called <em>quality</em>."
"<p>For now, quality -1 is roughly equivalent to 45kbps average, "
"5 is roughly 160kbps, and 10 gives about 400kbps. "
"Most people seeking very-near-CD-quality audio encode at a quality of 5 or, "
"for lossless stereo coupling, 6. The quality 3 gives, at "
"approximately 110kbps a smaller filesize and significantly better fidelity "
"than .mp3 compression at 128kbps."
"<p><em>This explanation is based on the one from the www.vorbis.com FAQ.</em>");
w->m_radioQualityLevel->setToolTip( ttQuality );
w->m_labelQualityLevel->setToolTip( ttQuality );
w->m_slideQualityLevel->setToolTip( ttQuality );
w->m_radioQualityLevel->setWhatsThis( wsQuality );
w->m_labelQualityLevel->setWhatsThis( wsQuality );
w->m_slideQualityLevel->setWhatsThis( wsQuality );
QHBoxLayout* lay = new QHBoxLayout( this );
lay->setMargin( 0 );
lay->addWidget( w );
connect( w->m_slideQualityLevel, SIGNAL(valueChanged(int)),
this, SLOT(slotQualityLevelChanged(int)) );
slotQualityLevelChanged( 4 );
connect( w->m_radioQualityLevel, SIGNAL( toggled( bool ) ), this, SLOT( changed() ) );
connect( w->m_slideQualityLevel, SIGNAL( valueChanged( int ) ), this, SLOT( changed() ) );
connect( w->m_radioManual, SIGNAL( toggled( bool ) ), this, SLOT( changed() ) );
connect( w->m_checkBitrateUpper, SIGNAL( toggled( bool ) ), this, SLOT( changed() ) );
connect( w->m_checkBitrateNominal, SIGNAL( toggled( bool ) ), this, SLOT( changed() ) );
connect( w->m_checkBitrateLower, SIGNAL( toggled( bool ) ), this, SLOT( changed() ) );
connect( w->m_inputBitrateUpper, SIGNAL( valueChanged( int ) ), this, SLOT( changed() ) );
connect( w->m_inputBitrateNominal, SIGNAL( valueChanged( int ) ), this, SLOT( changed() ) );
connect( w->m_inputBitrateLower, SIGNAL( valueChanged( int ) ), this, SLOT( changed() ) );
}
K3bOggVorbisEncoderSettingsWidget::~K3bOggVorbisEncoderSettingsWidget()
{
}
void K3bOggVorbisEncoderSettingsWidget::slotQualityLevelChanged( int val )
{
w->m_labelQualityLevel->setText( QString::number(val) + " "
+ i18n("(targeted VBR of %1)",s_rough_average_quality_level_bitrates[val+1]) );
}
void K3bOggVorbisEncoderSettingsWidget::load()
{
KSharedConfig::Ptr c = KGlobal::config();
KConfigGroup grp(c, "K3bOggVorbisEncoderPlugin" );
if( grp.readEntry( "manual bitrate", DEFAULT_MANUAL_BITRATE ) )
w->m_radioManual->setChecked(true);
else
w->m_radioQualityLevel->setChecked(true);
w->m_slideQualityLevel->setValue( grp.readEntry( "quality level", DEFAULT_QUALITY_LEVEL ) );
w->m_inputBitrateUpper->setValue( grp.readEntry( "bitrate upper", DEFAULT_BITRATE_UPPER ) );
w->m_checkBitrateUpper->setChecked( grp.readEntry( "bitrate upper", DEFAULT_BITRATE_UPPER ) != -1 );
w->m_inputBitrateNominal->setValue( grp.readEntry( "bitrate nominal", DEFAULT_BITRATE_NOMINAL ) );
w->m_checkBitrateNominal->setChecked( grp.readEntry( "bitrate nominal", DEFAULT_BITRATE_NOMINAL ) != -1 );
w->m_inputBitrateLower->setValue( grp.readEntry( "bitrate lower", DEFAULT_BITRATE_LOWER ) );
w->m_checkBitrateLower->setChecked( grp.readEntry( "bitrate lower", DEFAULT_BITRATE_LOWER ) != -1 );
// w->m_inputSamplerate->setValue( grp.readEntry( "samplerate", DEFAULT_SAMPLERATE ) );
}
void K3bOggVorbisEncoderSettingsWidget::save()
{
KSharedConfig::Ptr c = KGlobal::config();
KConfigGroup grp(c,"K3bOggVorbisEncoderPlugin" );
grp.writeEntry( "manual bitrate", w->m_radioManual->isChecked() );
grp.writeEntry( "quality level", w->m_slideQualityLevel->value() );
grp.writeEntry( "bitrate upper", w->m_checkBitrateUpper->isChecked() ? w->m_inputBitrateUpper->value() : -1 );
grp.writeEntry( "bitrate nominal", w->m_checkBitrateNominal->isChecked() ? w->m_inputBitrateNominal->value() : -1 );
grp.writeEntry( "bitrate lower", w->m_checkBitrateLower->isChecked() ? w->m_inputBitrateLower->value() : -1 );
// c->writeEntry( "samplerate", w->m_inputSamplerate->value() );
}
void K3bOggVorbisEncoderSettingsWidget::defaults()
{
if( DEFAULT_MANUAL_BITRATE )
w->m_radioManual->setChecked(true);
else
w->m_radioQualityLevel->setChecked(true);
w->m_slideQualityLevel->setValue( DEFAULT_QUALITY_LEVEL );
w->m_inputBitrateUpper->setValue( DEFAULT_BITRATE_UPPER );
w->m_checkBitrateUpper->setChecked( DEFAULT_BITRATE_UPPER != -1 );
w->m_inputBitrateNominal->setValue( DEFAULT_BITRATE_NOMINAL );
w->m_checkBitrateNominal->setChecked( DEFAULT_BITRATE_NOMINAL != -1 );
w->m_inputBitrateLower->setValue( DEFAULT_BITRATE_LOWER );
w->m_checkBitrateLower->setChecked( DEFAULT_BITRATE_LOWER != -1 );
// w->m_inputSamplerate->setValue( DEFAULT_SAMPLERATE );
emit changed( true );
}
#include "k3boggvorbisencoderconfigwidget.moc"
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