61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#pragma once
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#include "Modem.h"
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class ModemKitFMStereo: public ModemKit {
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public:
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ModemKitFMStereo() : audioResampler(nullptr), stereoResampler(nullptr), audioResampleRatio(0), firStereoLeft(nullptr), firStereoRight(nullptr), iirStereoPilot(nullptr) {
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}
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msresamp_rrrf audioResampler;
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msresamp_rrrf stereoResampler;
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double audioResampleRatio;
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firfilt_rrrf firStereoLeft;
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firfilt_rrrf firStereoRight;
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iirfilt_crcf iirStereoPilot;
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int demph;
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iirfilt_rrrf iirDemphR;
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iirfilt_rrrf iirDemphL;
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firhilbf firStereoR2C;
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firhilbf firStereoC2R;
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nco_crcf stereoPilot;
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};
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class ModemFMStereo : public Modem {
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public:
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ModemFMStereo();
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~ModemFMStereo();
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std::string getType();
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std::string getName();
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static ModemBase *factory();
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int checkSampleRate(long long sampleRate, int audioSampleRate);
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int getDefaultSampleRate();
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ModemArgInfoList getSettings();
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void writeSetting(std::string setting, std::string value);
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std::string readSetting(std::string setting);
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ModemKit *buildKit(long long sampleRate, int audioSampleRate);
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void disposeKit(ModemKit *kit);
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void demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut);
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private:
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std::vector<float> demodOutputData;
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std::vector<float> demodStereoData;
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std::vector<float> resampledOutputData;
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std::vector<float> resampledStereoData;
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freqdem demodFM;
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int _demph;
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}; |