interpolator/decimator blocks

[ivan-cukic]

Interpolator/decimating functionality:

struct node { // [..]
    constexpr static tag_propagation_policy_t  tag_policy = tag_propagation_policy_t::TPP_ALL_TO_ALL;
    A<uint64_t, "numerator", Doc<"add some doc">> numerator = 1_UZ;
    A<uint64_t, "denumerator", Doc<"add some doc">> denumerator = 1_UZ;
    A<uint64_t, "stride", Doc<"add some doc">> stride = 1_UZ;
  // [..]
};
// [..]
ENABLE_REFLECTION_FOR_TEMPLATE_FULL((typename T, typename... Arguments), (fair::graph::node<T, Arguments...>), numerator, denumerator, stride, unique_name, name, meta_information);

std::size_t samples_to_process = 0; -> number input samples
std::size_t number_output_samples = out::available()...

enforce usage of process_bulk(.... )
Need to adjust input_spans and writers_tuple sizes and to respect the required ratio:
In case requested_work is smaller than minimum required input samples -> round up to the next compatible value that is still consistent with the required ration and available output buffer space.

Notes:

• computation of outgoing "samp_rate" depends on num, den and stride -> helper function to be executed in settings forward/user-block impl

Related PRs

• #PR108