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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 <array>
#include <vector>
#include "common/common_types.h"
namespace AudioCore::Codec {
enum class PcmFormat : u32 {
Invalid = 0,
Int8 = 1,
Int16 = 2,
Int24 = 3,
Int32 = 4,
PcmFloat = 5,
Adpcm = 6,
};
/// See: Codec::DecodeADPCM
struct ADPCMState {
// Two historical samples from previous processed buffer,
// required for ADPCM decoding
s16 yn1; ///< y[n-1]
s16 yn2; ///< y[n-2]
};
using ADPCM_Coeff = std::array<s16, 16>;
/**
* @param data Pointer to buffer that contains ADPCM data to decode
* @param size Size of buffer in bytes
* @param coeff ADPCM coefficients
* @param state ADPCM state, this is updated with new state
* @return Decoded stereo signed PCM16 data, sample_count in length
*/
std::vector<s16> DecodeADPCM(const u8* const data, std::size_t size, const ADPCM_Coeff& coeff,
ADPCMState& state);
}; // namespace AudioCore::Codec
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