/** Decimate hook. * * @author Steffen Vogel * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * 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, either version 3 of the License, or * any later version. * * 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 for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ #pragma once #include /** @addtogroup hooks Hook functions * @{ */ namespace villas { namespace node { class DecimateHook : public LimitHook { protected: int ratio; unsigned counter; public: using LimitHook::LimitHook; virtual void setRate(double rate, double maxRate = -1) { assert(maxRate > 0); int ratio = maxRate / rate; if (ratio == 0) ratio = 1; setRatio(ratio); } void setRatio(int r) { ratio = r; } virtual void start(); virtual void parse(json_t *cfg); virtual Hook::Reason process(sample *smp); }; } /* namespace node */ } /* namespace villas */ /** * @} */