#include <psemek/audio/wave/silence.hpp>

namespace psemek::audio
{

	namespace
	{

		struct silence_impl
			: stream
		{
			std::size_t read(float * data, std::size_t sample_count) override
			{
				std::fill(data, data + sample_count, 0.f);
				played_ += sample_count;
				return sample_count;
			}

			std::optional<std::size_t> length() const override
			{
				return std::nullopt;
			}

			std::size_t played() const override
			{
				return played_;
			}

		private:
			std::size_t played_ = 0;
		};

	}

	stream_ptr silence()
	{
		return std::make_shared<silence_impl>();
	}

}