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/***************************************************************************
* Copyright (C) 2010-2020 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 <unistd.h>
#include "outputnull.h"
OutputNull::OutputNull() : Output()
{}
OutputNull::~OutputNull()
{}
bool OutputNull::initialize(quint32 freq, ChannelMap map, Qmmp::AudioFormat format)
{
switch (format)
{
case Qmmp::PCM_S8:
m_bytes_per_second = freq * map.count();
break;
case Qmmp::PCM_S24LE:
case Qmmp::PCM_S32LE:
m_bytes_per_second = freq * map.count() * 4;
break;
case Qmmp::PCM_S16LE:
default:
m_bytes_per_second = freq * map.count() * 2;
}
configure(freq, map, format);
return true;
}
qint64 OutputNull::latency()
{
return 0;
}
qint64 OutputNull::writeAudio(unsigned char *data, qint64 maxSize)
{
Q_UNUSED(data);
usleep(maxSize * 1000000 / m_bytes_per_second);
return maxSize;
}
void OutputNull::drain()
{}
void OutputNull::reset()
{}
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