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sdrangel/plugins/channel/tetra/tetrademod.h
2014-06-15 09:32:25 +01:00

68 lines
2.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// 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 positiveOnly);
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