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// Copyright 2008 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
// ---------------------------------------------------------------------------------
// Class: WaveFileWriter
// Description: Simple utility class to make it easy to write long 16-bit stereo
// audio streams to disk.
// Use Start() to start recording to a file, and AddStereoSamples to add wave data.
// The float variant will convert from -1.0-1.0 range and clamp.
// Alternatively, AddSamplesBE for big endian wave data.
// If Stop is not called when it destructs, the destructor will call Stop().
// ---------------------------------------------------------------------------------
#pragma once
#include <array>
#include <string>
#include "Common/CommonTypes.h"
#include "Common/IOFile.h"
class WaveFileWriter
{
public:
WaveFileWriter();
~WaveFileWriter();
WaveFileWriter(const WaveFileWriter&) = delete;
WaveFileWriter& operator=(const WaveFileWriter&) = delete;
WaveFileWriter(WaveFileWriter&&) = delete;
WaveFileWriter& operator=(WaveFileWriter&&) = delete;
bool Start(const std::string& filename, u32 sample_rate_divisor);
void Stop();
void SetSkipSilence(bool skip) { m_skip_silence = skip; }
// big endian
void AddStereoSamplesBE(const short* sample_data, u32 count, u32 sample_rate_divisor,
int l_volume, int r_volume);
u32 GetAudioSize() const { return m_audio_size; }
private:
static constexpr size_t BUFFER_SIZE = 32 * 1024;
void Write(u32 value);
void Write4(const char* ptr);
File::IOFile m_file;
std::string m_basename;
u32 m_file_index = 0;
u32 m_audio_size = 0;
u32 m_current_sample_rate_divisor;
std::array<short, BUFFER_SIZE> m_conv_buffer{};
bool m_skip_silence = false;
};
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