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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// //
// 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 as version 3 of the License, or //
// //
// 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_AUDIOFIFO_H
#define INCLUDE_AUDIOFIFO_H
#include <QMutex>
#include <QWaitCondition>
#include "util/export.h"
class SDRANGELOVE_API AudioFifo {
public:
AudioFifo();
AudioFifo(uint sampleSize, uint numSamples);
~AudioFifo();
bool setSize(uint sampleSize, uint numSamples);
uint write(const quint8* data, uint numSamples, int timeout = INT_MAX);
uint read(quint8* data, uint numSamples, int timeout = INT_MAX);
uint drain(uint numSamples);
void clear();
uint flush() { return drain(m_fill); }
uint fill() const { return m_fill; }
bool isEmpty() const { return m_fill == 0; }
bool isFull() const { return m_fill == m_size; }
uint size() const { return m_size; }
quint32 getSampleRate() const { return m_sampleRate; }
void setSampleRate(quint32 rate) { m_sampleRate = rate; }
bool isStopped() const { return m_stopped; }
void setStopped(bool stopped) { m_stopped = stopped; }
private:
QMutex m_mutex;
qint8* m_fifo;
uint m_sampleSize;
uint m_size;
uint m_fill;
uint m_head;
uint m_tail;
QMutex m_writeWaitLock;
QMutex m_readWaitLock;
QWaitCondition m_writeWaitCondition;
QWaitCondition m_readWaitCondition;
quint32 m_sampleRate;
bool m_stopped;
bool create(uint sampleSize, uint numSamples);
};
#endif // INCLUDE_AUDIOFIFO_H
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