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