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53 lines
2.4 KiB
C
53 lines
2.4 KiB
C
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB //
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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 SDRBASE_DSP_SAMPLESOURCEFIFO_H_
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#define SDRBASE_DSP_SAMPLESOURCEFIFO_H_
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#include <QObject>
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#include <QMutex>
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#include <stdint.h>
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#include <assert.h>
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#include "util/export.h"
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#include "dsp/dsptypes.h"
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class SDRANGEL_API SampleSourceFifo : public QObject {
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Q_OBJECT
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public:
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SampleSourceFifo(uint32_t size, uint32_t samplesChunkSize);
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~SampleSourceFifo();
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unsigned int getChunkSize() const { return m_samplesChunkSize; }
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void read(SampleVector::iterator& begin, SampleVector::iterator& end);
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void getReadIterator(SampleVector::iterator& beginRead); //!< begin read at this point for the chunksize length
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void write(const Sample& sample); //!< write directly
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void getWriteIterator(SampleVector::iterator& writeAt); //!< get iterator to current item for update - write phase 1
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void bumpIndex(); //!< copy current item to second buffer and bump write index - write phase 2
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private:
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uint32_t m_size;
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uint32_t m_samplesChunkSize;
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SampleVector m_data;
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uint32_t m_i;
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QMutex m_mutex;
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signals:
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void dataRead(); // signal data has been read past a read chunk of samples
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};
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#endif /* SDRBASE_DSP_SAMPLESOURCEFIFO_H_ */
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