mirror of https://github.com/LX3JL/xlxd.git
Geoffrey Merck
6 years ago
parent
5356f37fd8
commit
02a583f0b3
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//
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// cfixedgain.cpp
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 28/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Geoffrey Merck F4FXL / KC3FRA AGC
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#include "cfixedgain.h"
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#include <math.h>
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////////////////////////////////////////////////////////////////////////////////////////
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// constructor
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CFixedGain::CFixedGain(float gaindB)
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{
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m_gaindB = gaindB;
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m_gainLinear = pow(10.0f, m_gaindB/20.0f);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// processing
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inline float CFixedGain::ProcessSample(float input)
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{
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return input * m_gainLinear;
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}
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//
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// cfixedgain.h
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 26/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Geoffrey Merck F4FXL / KC3FRA
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#ifndef cfixedgain_h
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#define cfixedgain_h
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#include "csampleprocessor.h"
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class CFixedGain : CSampleProcessor
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{
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public:
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//Constructor
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CFixedGain(float gaindB);
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//processing
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float ProcessSample(float input);
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private:
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float m_gaindB; //gain in dB
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float m_gainLinear; //linearized gain
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};
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#endif /* cfixedgain_h */
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//
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// csampleprocessor.h
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 26/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Geoffrey Merck F4FXL / KC3FRA
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#ifndef csampleprocessor_h
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#define csampleprocessor_h
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class CSampleProcessor
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{
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public:
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//processing
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virtual float ProcessSample(float input) = 0;
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};
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#endif /* csampleprocessor_h */
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//
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// cagc.cpp
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 28/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Geoffrey Merck F4FXL / KC3FRA AGC
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#include "main.h"
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#include "csignalprocessor.h"
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#if USE_AGC == 1
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#include "cagc.h"
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#else
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#include "cfixedgain.h"
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#endif
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#if USE_BANDPASSFILTER == 1
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#include "cfirfilter.h"
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#endif
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////////////////////////////////////////////////////////////////////////////////////////
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// constructor
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CSignalProcessor::CSignalProcessor(float gaindB)
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{
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#if USE_BANDPASSFILTER
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m_sampleProcessors.push_back((CSampleProcessor*)new CFIRFilter(FILTER_TAPS, FILTER_TAPS_LENGTH));
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#endif
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#if USE_AGC == 1
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m_sampleProcessors.push_back((CSampleProcessor*)new CAGC(gaindB));
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#else
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m_sampleProcessors.push_back((CSampleProcessor*)new CFixedGain(gaindB));
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// destructor
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CSignalProcessor::~CSignalProcessor()
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{
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for(int i = 0; i < m_sampleProcessors.size(); i++)
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{
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delete m_sampleProcessors[i];
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// processing
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void CSignalProcessor::Process(uint8* voice, int length)
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{
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float sample;
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int i;
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auto processorsSize = m_sampleProcessors.size();
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for(int i = 0; i < length; i += 2)
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{
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//Get the sample
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sample = (float)(short)MAKEWORD(voice[i+1], voice[i]);
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for(i = 0; i < processorsSize; i++)
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{
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sample = m_sampleProcessors[i]->ProcessSample(sample);
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}
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//write processed sample back
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voice[i] = HIBYTE((short)sample);
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voice[i+1] = LOBYTE((short)sample);
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}
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}
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@ -0,0 +1,48 @@
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//
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// csignalprocessor.h
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// ambed
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 26/04/2017.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of ambed.
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//
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// xlxd is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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// Geoffrey Merck F4FXL / KC3FRA
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#ifndef csignalprocessor_h
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#define csignalprocessor_h
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#include <vector>
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#include "csampleprocessor.h"
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class CSignalProcessor
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{
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public:
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//Constructor
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CSignalProcessor(float gaindB);
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//Destructor
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~CSignalProcessor();
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//Processing
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void Process(uint8* voice, int length);
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private:
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std::vector<CSampleProcessor *> m_sampleProcessors;
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};
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#endif /* csignalprocessor_h */
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