process_overlap_add()

template<typename TransformFunc >
requires std::invocable<TransformFunc, std::span<const double>>

std::vector< double > MayaFlux::Yantra::process_overlap_add	(	const std::span< const double > &	data,
		uint32_t	window_size,
		uint32_t	hop_size,
		TransformFunc	transform_func
	)

Overlap-add processing for windowed transforms using C++20 ranges.

Template Parameters

TransformFunc

Function type for transformation

Parameters

data	Input data
window_size	Size of analysis windows
hop_size	Hop size between windows
transform_func	Transformation function to apply per window

Returns

Processed data

Definition at line 32 of file TemporalHelper.hpp.

{
    const size_t num_windows = (data.size() - window_size) / hop_size + 1;
    std::vector<double> output(data.size(), 0.0);
 
    std::ranges::for_each(std::views::iota(size_t { 0 }, num_windows), [&](size_t win) {
        size_t start_idx = win * hop_size;
        auto window_data = data.subspan(start_idx,
            std::min(static_cast<size_t>(window_size), data.size() - start_idx));
 
        auto transformed = transform_func(window_data);
 
        for (size_t i = 0; i < transformed.size() && start_idx + i < output.size(); ++i) {
            output[start_idx + i] += transformed[i];
        }
    });
 
    return output;
}