FCD template.

2026-06-11 02:08:46 -04:00 · 2014-11-29 18:09:35 +00:00
parent fbae7c7f8e
commit beda489261
12 changed files with 917 additions and 0 deletions
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+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
+// written by Christian Daniel                                                   //
+//                                                                               //
+// 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 INCLUDE_FCDTHREAD_H
+#define INCLUDE_FCDTHREAD_H
+
+#include <QThread>
+#include <QMutex>
+#include <QWaitCondition>
+#include "dsp/samplefifo.h"
+#include "dsp/inthalfbandfilter.h"
+
+#define SAMPLERATE 192000
+#define BLOCKSIZE 8192
+
+class FCDThread : public QThread {
+	Q_OBJECT
+
+public:
+	FCDThread(SampleFifo* sampleFifo, QObject* parent = NULL);
+	~FCDThread();
+
+	void stopWork();
+	void OpenSource(const char *filename);
+	void CloseSource();
+	void set_center_freq(double freq);
+	int  work(int n_items);
+private:
+	int fd;
+	struct fcd_buffer *buffers;
+	unsigned int n_buffers;
+	void *recebuf_ptr;
+	unsigned int recebuf_len;
+	unsigned int recebuf_mmap_index;
+
+	QMutex m_startWaitMutex;
+	QWaitCondition m_startWaiter;
+	bool m_running;
+
+	SampleVector m_convertBuffer;
+	SampleFifo* m_sampleFifo;
+
+	void run();
+
+};
+#endif // INCLUDE_FCDTHREAD_H