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+/**
+* @file  cusdr_chirpProcessor.h
+* @brief chirp processor header file
+* @author Hermann von Hasseln, DL3HVH
+* @version 0.1
+* @date 2011-09-22
+*/
+
+/*   
+ *   Copyright 2011 Hermann von Hasseln, DL3HVH
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Library General Public License version 2 as
+ *   published by the Free Software Foundation
+ *
+ *   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 for more details
+ *
+ *   You should have received a copy of the GNU Library General Public
+ *   License along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef _CUSDR_CHIRPPROCESSOR_H
+#define _CUSDR_CHIRPPROCESSOR_H
+
+//#include <QObject>
+//#include <QMutex>
+//#include <QByteArray>
+//#include <QBuffer>
+//#include <QVector>
+//#include <QList>
+//#include <QWaitCondition>
+//#include <QThread>
+
+#include "cusdr_settings.h"
+#include "QtDSP/qtdsp_qComplex.h"
+#include "QtDSP/qtdsp_filter.h"
+#include "QtDSP/qtdsp_fft.h"
+
+#ifdef LOG_CHIRP_PROCESSOR
+#   define CHIRP_PROCESSOR_DEBUG qDebug().nospace() << "ChirpProcessor::\t"
+#else
+#   define CHIRP_PROCESSOR_DEBUG nullDebug()
+#endif
+
+
+#define FULL_BUFFERSIZE		16384//65536
+#define HALF_BUFFERSIZE		32768
+#define BUFFERSIZE			2048
+
+class ChirpProcessor : public QObject {
+
+    Q_OBJECT
+
+public:
+	ChirpProcessor(THPSDRParameter *ioData = 0);
+	~ChirpProcessor();
+
+public slots:
+	void	stop();
+	void	processChirpData();
+	void	generateLocalChirp();
+	
+private slots:
+	void	matchedFilterFIRFilter(QList<qreal> data);
+	void	samplingRateChanged(QObject *sender, int value);
+	void	setSpectras(const float *distance, const float *chirpfft);
+	void	setDistSpectrumAvgLength(int value);
+	void	setChirpFFTShow(bool value);
+	void	setChirpSideband(bool value);
+	void	setFilterLowerFrequency(int value);
+	void	setFilterUpperFrequency(int value);
+		
+private:
+	Settings	*set;
+
+	QMutex		m_mutex;
+	QString		m_message;
+
+	QFFT		*m_chirpFFT;
+	QFFT		*m_matchedFFT;
+	QFilter		*m_filter;
+
+	CPX			m_tmp0;
+	CPX			m_tmp1;
+	CPX			m_tmp2;
+	CPX			m_tmp3;
+	CPX			m_tmpDec;
+
+	CPX			m_cpxRxFFT;
+	CPX			m_cpxChirpIn;
+	CPX			m_cpxChirpTmp;
+	CPX			m_cpxChirpOut;
+	CPX			m_cpxIn;
+	CPX			m_cpxInFilt;
+	CPX			m_cpxOut;
+	
+	THPSDRParameter	*io;
+
+	QQueue<QVector<float> >  average_queue;
+
+	float			m_tmpBuf[FULL_BUFFERSIZE];
+	float			m_outBuf[FULL_BUFFERSIZE];
+	float			m_spectrumBuffer[FULL_BUFFERSIZE];
+	float			m_fftSpectrumBuffer[FULL_BUFFERSIZE];
+	float			m_spectrumBufferFull[FULL_BUFFERSIZE];
+	float			*m_window;
+
+	volatile bool	m_stopped;
+
+	float		m_specMax;
+	float		m_specMin;
+	float		m_scale;
+
+	int			m_sampleRate;
+	int			m_downSampleRate;
+	int			m_downRate;
+	int			m_specBufferSize;
+	int			m_specAvgLength;
+	float		m_filterLowerFrequency;
+	float		m_filterUpperFrequency;
+	
+	bool		m_switch;
+	bool		m_showChirpFFT;
+
+
+	qint64		m_chirpBufferLength;
+	qreal		m_chirpSidebandFactor;
+
+	void		setupConnections();
+	void		decimate(const CPX &in, CPX &out, int size, int downrate);
+	void		decimate(const QList<qreal> &data, CPX &out, int downrate);
+	void		spectrumAveraging(qint64 length, const float *buffer);
+
+	int			setSpectrumBufferSize(int size);
+
+signals:
+	void	messageEvent(QString message);
+};
+
+#endif // _CUSDR_CHIRPPROCESSOR_H