citra/src/audio_core/time_stretch.h
2018-09-08 22:09:26 +01:00

42 lines
984 B
C++

// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <cstddef>
#include <memory>
#include "common/common_types.h"
namespace soundtouch {
class SoundTouch;
}
namespace AudioCore {
class TimeStretcher {
public:
TimeStretcher();
~TimeStretcher();
void SetOutputSampleRate(unsigned int sample_rate);
/// @param in Input sample buffer
/// @param num_in Number of input frames in `in`
/// @param out Output sample buffer
/// @param num_out Desired number of output frames in `out`
/// @returns Actual number of frames written to `out`
std::size_t Process(const s16* in, std::size_t num_in, s16* out, std::size_t num_out);
void Clear();
void Flush();
private:
unsigned int sample_rate;
std::unique_ptr<soundtouch::SoundTouch> sound_touch;
double stretch_ratio = 1.0;
};
} // namespace AudioCore