yuzu/src/audio_core/time_stretch.h

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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <cstddef>
#include <SoundTouch.h>
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#include "common/common_types.h"
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namespace AudioCore {
class TimeStretcher {
public:
TimeStretcher(u32 sample_rate, u32 channel_count);
/// @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);
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void Clear();
void Flush();
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private:
u32 m_sample_rate;
soundtouch::SoundTouch m_sound_touch;
double m_stretch_ratio = 1.0;
};
} // namespace AudioCore