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// Copyright 2023 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <vector>
#include "common/common_types.h"
namespace AudioCore {
enum class Signedness : u8 {
Signed,
Unsigned,
};
using Samples = std::vector<u8>;
struct InputParameters {
Signedness sign;
u8 sample_size;
bool buffer_loop;
u32 sample_rate;
u32 buffer_offset;
u32 buffer_size;
};
class Input {
public:
Input() = default;
virtual ~Input() = default;
/// Starts the microphone. Called by Core
virtual void StartSampling(const InputParameters& params) = 0;
/// Stops the microphone. Called by Core
virtual void StopSampling() = 0;
/// Checks whether the microphone is currently sampling.
virtual bool IsSampling() = 0;
/**
* Adjusts the Parameters. Implementations should update the parameters field in addition to
* changing the mic to sample according to the new parameters. Called by Core
*/
virtual void AdjustSampleRate(u32 sample_rate) = 0;
/**
* Called from the actual event timing at a constant period under a given sample rate.
* When sampling is enabled this function is expected to return a buffer of 16 samples in ideal
* conditions, but can be lax if the data is coming in from another source like a real mic.
*/
virtual Samples Read() = 0;
protected:
InputParameters parameters;
};
} // namespace AudioCore
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