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Fix missing signal update and add multi channel akkumulator

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This commit is contained in:
Manuel Pitz 2021-11-23 13:47:19 +01:00
parent e3c0bdb6f6
commit 409327be7a
1 changed files with 23 additions and 7 deletions
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30
lib/hooks/rms.cpp
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@ -26,6 +26,7 @@
#include <villas/hook.hpp>
#include <villas/sample.h>
#include <sstream>
namespace villas {
namespace node {
@ -35,7 +36,7 @@ class RMSHook : public MultiSignalHook {
protected:
std::vector<std::vector<double>> smpMemory;
double accumulator;
std::vector<double> accumulator;
unsigned windowSize;
uint64_t smpMemoryPosition;
@ -43,7 +44,6 @@ public:
RMSHook(struct vpath *p, struct vnode *n, int fl, int prio, bool en = true) :
MultiSignalHook(p, n, fl, prio, en),
smpMemory(),
accumulator(0.0),
windowSize(0),
smpMemoryPosition(0)
{ }
@ -62,10 +62,26 @@ public:
throw RuntimeError("The rms hook can only operate on signals of type float!");
}
/* Initialize sample memory */
signal_list_clear(&signals);
for (unsigned i = 0; i < signalIndices.size(); i++) {
struct signal *rmsVal;
/* Add signals */
std::stringstream ss << "rms" << i;
rmsVal = signal_create(ss.str().c_str(), "", SignalType::FLOAT);
if (!rmsVal)
throw RuntimeError("Failed to create new signals");
vlist_push(&signals, rmsVal);
}
/* Initialize memory for each channel*/
smpMemory.clear();
for (unsigned i = 0; i < signalIndices.size(); i++)
for (unsigned i = 0; i < signalIndices.size(); i++){
accumulator.push_back(0.0);
smpMemory.emplace_back(windowSize, 0.0);
}
state = State::PREPARED;
}
@ -106,10 +122,10 @@ public:
double oldValue = smpMemory[i][(smpMemoryPosition + 1) % windowSize];
/* Update the accumulator */
accumulator += newValue;
accumulator -= oldValue;
accumulator[index] += newValue;
accumulator[index] -= oldValue;
auto rms = pow(accumulator / windowSize, 0.5);
auto rms = pow(accumulator[index] / windowSize, 0.5);
smp->data[index].f = rms;
i++;