1 files changed, 67 insertions, 0 deletions
diff --git a/plugins/channel/tetra/tetrademod.h b/plugins/channel/tetra/tetrademod.h
new file mode 100644
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+++ b/plugins/channel/tetra/tetrademod.h
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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_TETRADEMOD_H
+#define INCLUDE_TETRADEMOD_H
+
+#include "dsp/samplesink.h"
+#include "dsp/nco.h"
+#include "dsp/interpolator.h"
+#include "util/message.h"
+
+class MessageQueue;
+
+class TetraDemod : public SampleSink {
+public:
+	TetraDemod(SampleSink* sampleSink);
+	~TetraDemod();
+
+	void configure(MessageQueue* messageQueue);
+
+	void feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool firstOfBurst);
+	void start();
+	void stop();
+	bool handleMessage(Message* cmd);
+
+private:
+	class MsgConfigureTetraDemod : public Message {
+	public:
+		static MessageRegistrator ID;
+
+		static MsgConfigureTetraDemod* create()
+		{
+			return new MsgConfigureTetraDemod();
+		}
+
+	private:
+		MsgConfigureTetraDemod() :
+			Message(ID())
+		{ }
+	};
+
+	int m_sampleRate;
+	int m_frequency;
+
+	NCO m_nco;
+	Interpolator m_interpolator;
+	Real m_sampleDistanceRemain;
+
+	SampleSink* m_sampleSink;
+	SampleVector m_sampleBuffer;
+};
+
+#endif // INCLUDE_TETRADEMOD_H