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/***************************************************************************
* Copyright (C) 2009 by Ilya Kotov <forkotov02@hotmail.ru> *
* Copyright (C) 2009 by Sebastian Pipping <sebastian@pipping.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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QSettings>
#include <math.h>
#include <stdlib.h>
#include <qmmp/qmmp.h>
#include "bs2bplugin.h"
Bs2bPlugin::Bs2bPlugin(QObject* parent) : Effect(parent)
{
m_bs2b_handler = bs2b_open();
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
bs2b_set_level(m_bs2b_handler, settings.value("bs2b/level", BS2B_DEFAULT_CLEVEL).toInt());
}
Bs2bPlugin::~Bs2bPlugin()
{
bs2b_clear(m_bs2b_handler);
}
#define CASE_BS2B(bitsPerSample, dataType, functionToCall, samples, out_data) \
case bitsPerSample: \
{ \
dataType * data = reinterpret_cast<dataType *>(*out_data); \
while (samples--) { \
functionToCall(m_bs2b_handler, data); \
data += 2; \
} \
} \
break;
ulong Bs2bPlugin::process(char *in_data, const ulong size, char **out_data)
{
memcpy(*out_data, in_data, size);
if (channels() != 2)
return size;
uint samples = size / (bitsPerSample() / 8) / 2;
switch (bitsPerSample())
{
CASE_BS2B(8, char, bs2b_cross_feed_s8, samples, out_data)
CASE_BS2B(16, short, bs2b_cross_feed_16, samples, out_data)
CASE_BS2B(32, long, bs2b_cross_feed_32, samples, out_data)
default:
; // noop
}
return size;
}
void Bs2bPlugin::configure(quint32 freq, int chan, int res)
{
Effect::configure(freq, chan, res);
bs2b_set_srate(m_bs2b_handler,freq);
bs2b_set_level(m_bs2b_handler, BS2B_DEFAULT_CLEVEL);
}
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