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#pragma once
#include <math.h>
#include <cstdint>
#include <vector>
#include "config.h"
namespace NAtracDEnc {
class TTransientDetector {
const uint32_t ShortSz;
const uint32_t BlockSz;
const uint32_t NShortBlocks;
static const uint32_t PrevBufSz = 20;
static const uint32_t FIRLen = 21;
void HPFilter(const TFloat* in, TFloat* out);
std::vector<TFloat> HPFBuffer;
TFloat LastEnergy = 0.0;
uint32_t LastTransientPos = 0;
public:
TTransientDetector(uint32_t shortSz, uint32_t blockSz)
: ShortSz(shortSz)
, BlockSz(blockSz)
, NShortBlocks(blockSz/shortSz)
{
HPFBuffer.resize(BlockSz + FIRLen);
}
bool Detect(const TFloat* buf);
uint32_t GetLastTransientPos() const { return LastTransientPos; }
};
std::vector<TFloat> AnalyzeGain(const TFloat* in, uint32_t len, uint32_t maxPoints, bool useRms);
}
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