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/***************************************************************************
* Copyright (C) 2018-2021 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* 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 <stdlib.h>
#include <qmmp/qmmp.h>
#include "monotostereoplugin.h"
MonoToStereoPlugin::MonoToStereoPlugin() : Effect()
{
m_tmp = nullptr;
m_size = 0;
m_enabled = false;
}
MonoToStereoPlugin::~MonoToStereoPlugin()
{
if(m_tmp)
{
delete[] m_tmp;
m_tmp = nullptr;
}
}
void MonoToStereoPlugin::applyEffect(Buffer *b)
{
if(m_enabled)
{
if(m_size < b->samples)
{
if(m_tmp)
delete [] m_tmp;
m_tmp = new float[b->samples];
}
memcpy(m_tmp, b->data, b->samples * sizeof(float));
b->samples *= 2;
if(b->samples > b->size)
{
delete [] b->data;
b->size = b->samples;
b->data = new float[b->size];
}
for(size_t i = 0; i < b->samples; ++i)
b->data[i] = m_tmp[i >> 1];
}
}
void MonoToStereoPlugin::configure(quint32 freq, ChannelMap map)
{
if(map.count() == 1)
{
m_enabled = true;
Effect::configure(freq, ChannelMap(2));
}
else
{
m_enabled = false;
Effect::configure(freq, map);
}
}
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