signal/include/nk/signal/transforms/extras.hpp

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// toolboxes/signal/include/nk/signal/transforms/extras.hpp
//
// Transform extras (E2): dftmtx, bitrevorder, dst, idst, rceps, cceps, icceps.
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
#include <tuple>
#include <utility>
 
namespace nk::signal {

 

Value dftmtx(size_t N, std::pmr::memory_resource *mr = nullptr);

Value bitrevorder(const Value &                x,
                  std::pmr::memory_resource *  mr = nullptr);

Value dst(const Value &x, std::pmr::memory_resource *mr = nullptr);

Value idst(const Value &y, std::pmr::memory_resource *mr = nullptr);

Value rceps(const Value &x, std::pmr::memory_resource *mr = nullptr);

std::pair<Value, Value> rcepsMinPhase(const Value &x,
                                      std::pmr::memory_resource *mr = nullptr);

Value cceps(const Value &x, std::pmr::memory_resource *mr = nullptr,
            double *ndOut = nullptr);

Value icceps(const Value &c, std::pmr::memory_resource *mr = nullptr);
 

} // namespace nk::signal