signal/include/nk/signal/multirate/extras.hpp

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// toolboxes/signal/include/nk/signal/multirate/extras.hpp
//
// Multirate extras (F1): upfirdn, interp, intfilt, fftfilt.
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
 
namespace nk::signal {

 

Value upfirdn(const Value &                x,
              const Value &                h,
              size_t                       p,
              size_t                       q  = 1,
              std::pmr::memory_resource *  mr = nullptr);

Value interp(const Value &                x,
             size_t                       r,
             size_t                       n     = 4,
             double                       alpha = 0.5,
             std::pmr::memory_resource *  mr    = nullptr);

Value intfilt(size_t                       r,
              size_t                       n     = 4,
              double                       alpha = 0.5,
              std::pmr::memory_resource *  mr    = nullptr);

Value fftfilt(const Value &                b,
              const Value &                x,
              size_t                       nfft = 0,
              std::pmr::memory_resource *  mr   = nullptr);
 

} // namespace nk::signal