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209be94947
Set bit size to be 16 for interpolators and decimators. Match buffer size to UHD. Don't destroy TX stream, as there appears to be a bug when recreating it. Catch exception when checking for TX underflow. Increase RX FIFO size, to reduce overflows at high sample rates. Allow RX to continue streaming after receiving timeout.
76 lines
2.9 KiB
C++
76 lines
2.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// Copyright (C) 2020 Jon Beniston, M7RCE //
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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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// (at your option) any later version. //
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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 PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUTTHREAD_H_
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#define PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUTTHREAD_H_
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#include <QThread>
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#include <QMutex>
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#include <QWaitCondition>
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#include <uhd/usrp/multi_usrp.hpp>
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#include <uhd/types/metadata.hpp>
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#include "dsp/samplesinkfifo.h"
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#include "dsp/decimators.h"
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#include "usrp/deviceusrpshared.h"
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#include "usrp/deviceusrp.h"
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class USRPInputThread : public QThread, public DeviceUSRPShared::ThreadInterface
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{
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Q_OBJECT
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public:
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USRPInputThread(uhd::rx_streamer::sptr stream, size_t bufSamples, SampleSinkFifo* sampleFifo, QObject* parent = 0);
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~USRPInputThread();
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virtual void startWork();
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virtual void stopWork();
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virtual void setDeviceSampleRate(int sampleRate) { (void) sampleRate; }
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virtual bool isRunning() { return m_running; }
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void setLog2Decimation(unsigned int log2_decim);
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void getStreamStatus(bool& active, quint32& overflows, quint32& m_timeouts);
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void issueStreamCmd(bool start);
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private:
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QMutex m_startWaitMutex;
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QWaitCondition m_startWaiter;
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bool m_running;
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quint64 m_packets;
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quint32 m_overflows;
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quint32 m_timeouts;
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uhd::rx_streamer::sptr m_stream;
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qint16 *m_buf;
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size_t m_bufSamples;
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SampleVector m_convertBuffer;
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SampleSinkFifo* m_sampleFifo;
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unsigned int m_log2Decim; // soft decimation
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Decimators<qint32, qint16, SDR_RX_SAMP_SZ, 16, true> m_decimatorsIQ;
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void run();
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void callbackIQ(const qint16* buf, qint32 len);
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};
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#endif /* PLUGINS_SAMPLESOURCE_USRPINPUT_USRPINPUTTHREAD_H_ */
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