kopia lustrzana https://github.com/f4exb/sdrangel
78 wiersze
3.4 KiB
C++
78 wiersze
3.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2016 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// 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 SDRBASE_DSP_BASEBANDSAMPLESOURCE_H_
|
|
#define SDRBASE_DSP_BASEBANDSAMPLESOURCE_H_
|
|
|
|
#include <QObject>
|
|
#include "dsp/dsptypes.h"
|
|
#include "dsp/samplesourcefifo.h"
|
|
#include "export.h"
|
|
#include "util/messagequeue.h"
|
|
|
|
class Message;
|
|
|
|
class SDRBASE_API BasebandSampleSource : public QObject {
|
|
Q_OBJECT
|
|
public:
|
|
BasebandSampleSource();
|
|
virtual ~BasebandSampleSource();
|
|
|
|
virtual void start() = 0;
|
|
virtual void stop() = 0;
|
|
virtual void pull(Sample& sample) = 0;
|
|
virtual void pullAudio(int nbSamples __attribute__((unused))) {}
|
|
|
|
/** direct feeding of sample source FIFO */
|
|
void feed(SampleSourceFifo* sampleFifo, int nbSamples)
|
|
{
|
|
SampleVector::iterator writeAt;
|
|
sampleFifo->getWriteIterator(writeAt);
|
|
pullAudio(nbSamples); // Pre-fetch input audio samples this is mandatory to keep things running smoothly
|
|
|
|
for (int i = 0; i < nbSamples; i++)
|
|
{
|
|
pull((*writeAt));
|
|
sampleFifo->bumpIndex(writeAt);
|
|
}
|
|
}
|
|
|
|
SampleSourceFifo& getSampleSourceFifo() { return m_sampleFifo; }
|
|
|
|
virtual bool handleMessage(const Message& cmd) = 0; //!< Processing of a message. Returns true if message has actually been processed
|
|
|
|
MessageQueue *getInputMessageQueue() { return &m_inputMessageQueue; } //!< Get the queue for asynchronous inbound communication
|
|
virtual void setMessageQueueToGUI(MessageQueue *queue) { m_guiMessageQueue = queue; }
|
|
MessageQueue *getMessageQueueToGUI() { return m_guiMessageQueue; }
|
|
void setDeviceSampleSourceFifo(SampleSourceFifo *deviceSampleFifo);
|
|
|
|
protected:
|
|
MessageQueue m_inputMessageQueue; //!< Queue for asynchronous inbound communication
|
|
MessageQueue *m_guiMessageQueue; //!< Input message queue to the GUI
|
|
SampleSourceFifo m_sampleFifo; //!< Internal FIFO for multi-channel processing
|
|
SampleSourceFifo *m_deviceSampleFifo; //!< Reference to the device FIFO for single channel processing
|
|
|
|
void handleWriteToFifo(SampleSourceFifo *sampleFifo, int nbSamples);
|
|
|
|
protected slots:
|
|
void handleInputMessages();
|
|
void handleWriteToFifo(int nbSamples);
|
|
void handleWriteToDeviceFifo(int nbSamples);
|
|
};
|
|
|
|
#endif /* SDRBASE_DSP_BASEBANDSAMPLESOURCE_H_ */
|