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115 lines
2.5 KiB
C++
115 lines
2.5 KiB
C++
/*
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* bass_booster.cpp - bass-booster-effect-plugin
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*
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* * Copyright * (c) 2006-2008 Vesa Kivimäki <contact/dot/diizy/at/nbl/dot/fi>
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* Copyright (c) 2006-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#include "bass_booster.h"
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#include "embed.cpp"
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extern "C"
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{
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Plugin::Descriptor PLUGIN_EXPORT waveshaper_plugin_descriptor =
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{
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STRINGIFY( PLUGIN_NAME ),
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"BassBooster Effect",
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QT_TRANSLATE_NOOP( "pluginBrowser",
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"plugin for boosting bass" ),
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"Tobias Doerffel <tobydox/at/users.sf.net>",
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0x0100,
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Plugin::Effect,
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new PluginPixmapLoader( "logo" ),
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NULL,
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NULL
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} ;
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}
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bassBoosterEffect::bassBoosterEffect( Model * _parent,
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const Descriptor::SubPluginFeatures::Key * _key ) :
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Effect( &waveshaper_plugin_descriptor, _parent, _key ),
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m_bbFX( effectLib::fastBassBoost( 70.0f, 1.0f, 2.8f ) ),
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m_bbControls( this )
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{
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}
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bassBoosterEffect::~bassBoosterEffect()
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{
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}
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bool bassBoosterEffect::processAudioBuffer( sampleFrame * _buf,
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const fpp_t _frames )
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{
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if( !isEnabled() || !isRunning () )
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{
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return( false );
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}
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double out_sum = 0.0;
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const float d = dryLevel();
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const float w = wetLevel();
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for( fpp_t f = 0; f < _frames; ++f )
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{
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sample_t s[2] = { _buf[f][0], _buf[f][1] };
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m_bbFX.nextSample( s[0], s[1] );
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_buf[f][0] = d * _buf[f][0] + w * s[0];
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_buf[f][1] = d * _buf[f][1] + w * s[1];
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out_sum += _buf[f][0]*_buf[f][0] + _buf[f][1]*_buf[f][1];
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}
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checkGate( out_sum / _frames );
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return( isRunning() );
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}
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extern "C"
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{
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// necessary for getting instance out of shared lib
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Plugin * PLUGIN_EXPORT lmms_plugin_main( Model * _parent, void * _data )
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{
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return( new bassBoosterEffect( _parent,
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static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>(
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_data ) ) );
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}
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}
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