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45 lines
825 B
C++
45 lines
825 B
C++
/* Decimate hook.
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*
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* Author: Steffen Vogel <post@steffenvogel.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <villas/hook.hpp>
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namespace villas {
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namespace node {
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class DecimateHook : public LimitHook {
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protected:
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int ratio;
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bool renumber;
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unsigned counter;
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public:
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using LimitHook::LimitHook;
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virtual void setRate(double rate, double maxRate = -1) {
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assert(maxRate > 0);
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int ratio = maxRate / rate;
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if (ratio == 0)
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ratio = 1;
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setRatio(ratio);
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}
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void setRatio(int r) { ratio = r; }
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virtual void start();
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virtual void parse(json_t *json);
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virtual Hook::Reason process(struct Sample *smp);
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};
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} // namespace node
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} // namespace villas
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