mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-16 00:00:02 +01:00
71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
/** Decimate hook.
|
|
*
|
|
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
|
* @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 <http://www.gnu.org/licenses/>.
|
|
*********************************************************************************/
|
|
|
|
#pragma once
|
|
|
|
#include <villas/hook.hpp>
|
|
|
|
/** @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 */
|
|
|
|
/**
|
|
* @}
|
|
*/
|