forked from sin365/AxibugEmuOnline
420 lines
14 KiB
C#
420 lines
14 KiB
C#
using AxibugEmuOnline.Client.ClientCore;
|
||
using System;
|
||
using System.Collections.Generic;
|
||
using System.Linq;
|
||
using System.Text;
|
||
using UnityEngine;
|
||
using UnityEngine.Audio;
|
||
|
||
namespace AxibugEmuOnline.Client
|
||
{
|
||
public interface AxiAudioPull
|
||
{
|
||
public void PullAudio(float[] data, int channels);
|
||
}
|
||
|
||
public class AudioMgr : MonoBehaviour
|
||
{
|
||
public enum E_SFXTYPE
|
||
{
|
||
Cancel,
|
||
Cursor,
|
||
Option,
|
||
Launch,
|
||
system_ng,
|
||
system_ok
|
||
}
|
||
|
||
void Awake()
|
||
{
|
||
DontDestroyOnLoad(gameObject);
|
||
InitializeAudioSystem();
|
||
}
|
||
|
||
#region 音频资源
|
||
Dictionary<E_SFXTYPE, AudioClip> dictAudioClip = new Dictionary<E_SFXTYPE, AudioClip>();
|
||
void LoadAudioClip()
|
||
{
|
||
dictAudioClip[E_SFXTYPE.Cancel] = Resources.Load<AudioClip>("Sound/XMBSFX/cancel");
|
||
dictAudioClip[E_SFXTYPE.Cursor] = Resources.Load<AudioClip>("Sound/XMBSFX/cursor");
|
||
dictAudioClip[E_SFXTYPE.Option] = Resources.Load<AudioClip>("Sound/XMBSFX/option");
|
||
dictAudioClip[E_SFXTYPE.Launch] = Resources.Load<AudioClip>("Sound/XMBSFX/StartPSP");
|
||
dictAudioClip[E_SFXTYPE.system_ng] = Resources.Load<AudioClip>("Sound/XMBSFX/system_ng");
|
||
dictAudioClip[E_SFXTYPE.system_ok] = Resources.Load<AudioClip>("Sound/XMBSFX/system_ok");
|
||
}
|
||
#endregion
|
||
|
||
[SerializeField] private AudioMixerGroup _staticGroup; // 静态音效（UI等）输出组
|
||
[Header("静态音效")]
|
||
[SerializeField] private AudioSource _staticAudioSource; // 用于播放静态音效的源
|
||
AudioStreamData _audioStreams;
|
||
private int _targetOutputSampleRate; // Unity音频系统的输出采样率
|
||
|
||
/// <summary>
|
||
/// 初始化音频系统
|
||
/// </summary>
|
||
private void InitializeAudioSystem()
|
||
{
|
||
AudioSettings.OnAudioConfigurationChanged += OnAudioConfigurationChanged;
|
||
_targetOutputSampleRate = AudioSettings.outputSampleRate;
|
||
if (_staticAudioSource == null)
|
||
{
|
||
_staticAudioSource = this.gameObject.AddComponent<AudioSource>();
|
||
_staticAudioSource.outputAudioMixerGroup = _staticGroup;
|
||
}
|
||
|
||
// 设置初始音量
|
||
SetStaticVolume(0.9f);
|
||
Debug.Log($"Audio System Initialized. Output Sample Rate: {_targetOutputSampleRate}Hz");
|
||
LoadAudioClip();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 切换设备（蓝牙）后重新播放背景音乐
|
||
/// </summary>
|
||
/// <param name="deviceWasChanged"></param>
|
||
void OnAudioConfigurationChanged(bool deviceWasChanged)
|
||
{
|
||
//函数仅处理设备变化的情况，非设备变化不再本函数处理，避免核心采样率变化和本处循环调用
|
||
if (deviceWasChanged)
|
||
{
|
||
ResetAudioCfg();
|
||
//AudioConfiguration config = AudioSettings.GetConfiguration();
|
||
//AudioSettings.Reset(config);
|
||
//TODO 重新播放音效，但是DSP不用，若有UI BGM，后续 这里加重播
|
||
}
|
||
}
|
||
|
||
#region 静态音源
|
||
public void PlaySFX(E_SFXTYPE type, bool isLoop = false)
|
||
{
|
||
PlayStaticSound(dictAudioClip[type], 1, 1);
|
||
}
|
||
/// <summary>
|
||
/// 播放静态音频剪辑（UI音效等）
|
||
/// </summary>
|
||
void PlayStaticSound(AudioClip clip, float volume = 1.0f, float pitch = 1.0f)
|
||
{
|
||
if (clip == null) return;
|
||
|
||
_staticAudioSource.pitch = Mathf.Clamp(pitch, 0.5f, 2.0f);
|
||
_staticAudioSource.PlayOneShot(clip, Mathf.Clamp01(volume));
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置静态音频音量（线性0.0-1.0）
|
||
/// </summary>
|
||
public void SetStaticVolume(float volumeLinear)
|
||
{
|
||
if (_staticGroup != null && _staticGroup.audioMixer != null)
|
||
{
|
||
float volumeDB = ConvertLinearToDecibel(Mathf.Clamp01(volumeLinear));
|
||
_staticGroup.audioMixer.SetFloat("StaticVolume", volumeDB);
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
#region 动态音源（模拟器）
|
||
/// <summary>
|
||
/// 注册一个动态音频流通道（模拟器）
|
||
/// </summary>
|
||
/// <param name="channelId">通道标识符 (e.g., "NES", "MAME")</param>
|
||
/// <param name="inputSampleRate">该通道的原始采样率</param>
|
||
public void RegisterStream(string channelId, int inputSampleRate, AxiAudioPull audioPullHandle)
|
||
{
|
||
_audioStreams = null;
|
||
_audioStreams = new AudioStreamData(channelId, inputSampleRate, audioPullHandle);
|
||
ResetAudioCfg();
|
||
}
|
||
|
||
private void ResetAudioCfg()
|
||
{
|
||
// 获取当前音频配置
|
||
AudioConfiguration config = AudioSettings.GetConfiguration();
|
||
|
||
// 设置目标音频配置
|
||
config.sampleRate = 48000; // 采样率为 44100Hz
|
||
config.numRealVoices = 32; // 设置最大音频源数量（可选）
|
||
config.numVirtualVoices = 512; // 设置虚拟音频源数量（可选）
|
||
config.dspBufferSize = 1024; // 设置 DSP 缓冲区大小（可选）
|
||
config.speakerMode = AudioSpeakerMode.Stereo; // 设置为立体声（2 声道）
|
||
|
||
// 应用新的音频配置
|
||
if (AudioSettings.Reset(config))
|
||
{
|
||
Debug.Log("Audio settings updated successfully.");
|
||
Debug.Log("Sample Rate: " + config.sampleRate + "Hz");
|
||
Debug.Log("Speaker Mode: " + config.speakerMode);
|
||
}
|
||
else
|
||
{
|
||
Debug.LogError("Failed to update audio settings.");
|
||
}
|
||
_staticAudioSource.Play();//只为让DSP继续
|
||
}
|
||
|
||
/// <summary>
|
||
/// 清空指定通道的音频数据
|
||
/// </summary>
|
||
public void ClearAudioData(string channelId)
|
||
{
|
||
if (_audioStreams == null || _audioStreams.channelid != channelId)
|
||
return;
|
||
_audioStreams = null;
|
||
}
|
||
#endregion
|
||
|
||
#region Core Audio Processing (Called automatically by Unity)
|
||
/// <summary>
|
||
/// Unity音频线程回调：在这里处理和混合所有动态音频流[1](@ref)
|
||
/// </summary>
|
||
void OnAudioFilterRead(float[] data, int channels)
|
||
{
|
||
if (_audioStreams == null) return;
|
||
_audioStreams.AxiAudioPullHandle.PullAudio(data, channels);
|
||
|
||
//TODO 如果要处理采样率差异
|
||
if (_audioStreams.NeedsResampling){ }
|
||
}
|
||
#endregion
|
||
|
||
#region Helper Methods
|
||
/// <summary>
|
||
/// 线性音量值转换为分贝值 (dB)[4](@ref)
|
||
/// </summary>
|
||
private float ConvertLinearToDecibel(float linear)
|
||
{
|
||
if (linear <= 0.0001f) return -80.0f; // 避免log10(0)
|
||
return Mathf.Log10(linear) * 20.0f;
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 录音功能实现
|
||
|
||
WaveHeader waveHeader;
|
||
FormatChunk formatChunk;
|
||
DataChunk dataChunk;
|
||
|
||
public bool IsRecording { get; private set; }
|
||
|
||
public void BeginRecordGameAudio()
|
||
{
|
||
App.emu.Core.GetAudioParams(out int frequency, out int channels);
|
||
BeginRecording(frequency, channels);
|
||
}
|
||
|
||
public void StopRecordGameAudio()
|
||
{
|
||
SaveRecording(GetSavePath());
|
||
}
|
||
|
||
string GetSavePath()
|
||
{
|
||
string dir = $"{App.PersistentDataPath(App.emu.Core.Platform)}/AxiSoundRecord";
|
||
if (!AxiIO.Directory.Exists(dir))
|
||
{
|
||
AxiIO.Directory.CreateDirectory(dir);
|
||
}
|
||
return $"{dir}/{App.tick.GetDateTimeStr()}";
|
||
}
|
||
|
||
void BeginRecording(int frequency, int channels)
|
||
{
|
||
if (IsRecording)
|
||
{
|
||
OverlayManager.PopTip("已有正在进行的录音……");
|
||
return;
|
||
}
|
||
waveHeader = new WaveHeader();
|
||
formatChunk = new FormatChunk(frequency, channels);
|
||
dataChunk = new DataChunk();
|
||
waveHeader.FileLength += formatChunk.Length();
|
||
IsRecording = true;
|
||
OverlayManager.PopTip("录音开始");
|
||
}
|
||
|
||
void SaveRecording(string filename)
|
||
{
|
||
if (!IsRecording)
|
||
{
|
||
OverlayManager.PopTip("没有录音数据");
|
||
return;
|
||
}
|
||
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
|
||
{
|
||
ms.Write(waveHeader.GetBytes(), 0, (int)waveHeader.Length());
|
||
ms.Write(formatChunk.GetBytes(), 0, (int)formatChunk.Length());
|
||
ms.Write(dataChunk.GetBytes(), 0, (int)dataChunk.Length());
|
||
AxiIO.File.WriteAllBytesFromStream(filename, ms);
|
||
}
|
||
IsRecording = false;
|
||
OverlayManager.PopTip("录音结束");
|
||
}
|
||
|
||
public unsafe void WriteToRecord(short* stereoBuffer, int lenght)
|
||
{
|
||
if (!IsRecording) return;
|
||
dataChunk.AddSampleData(stereoBuffer, lenght);
|
||
waveHeader.FileLength += (uint)lenght;
|
||
}
|
||
#endregion
|
||
}
|
||
|
||
// 用于描述一个动态音频流的数据结构
|
||
public class AudioStreamData
|
||
{
|
||
public string channelid;
|
||
public int SourceSampleRate;
|
||
public bool NeedsResampling;
|
||
public AxiAudioPull AxiAudioPullHandle;
|
||
public AudioStreamData(string channelid, int SourceSampleRate, AxiAudioPull audiohandle)
|
||
{
|
||
this.channelid = channelid;
|
||
this.SourceSampleRate = SourceSampleRate;
|
||
this.AxiAudioPullHandle = audiohandle;
|
||
NeedsResampling = SourceSampleRate != AudioSettings.outputSampleRate;
|
||
AudioSettings.GetDSPBufferSize(out int bufferLength, out int numBuffers);
|
||
}
|
||
}
|
||
class WaveHeader
|
||
{
|
||
const string fileTypeId = "RIFF";
|
||
const string mediaTypeId = "WAVE";
|
||
public string FileTypeId { get; private set; }
|
||
public uint FileLength { get; set; }
|
||
public string MediaTypeId { get; private set; }
|
||
public WaveHeader()
|
||
{
|
||
FileTypeId = fileTypeId;
|
||
MediaTypeId = mediaTypeId;
|
||
FileLength = 4; /* Minimum size is always 4 bytes */
|
||
}
|
||
public byte[] GetBytes()
|
||
{
|
||
List<byte> chunkData = new List<byte>();
|
||
|
||
chunkData.AddRange(Encoding.ASCII.GetBytes(FileTypeId));
|
||
chunkData.AddRange(BitConverter.GetBytes(FileLength));
|
||
chunkData.AddRange(Encoding.ASCII.GetBytes(MediaTypeId));
|
||
|
||
return chunkData.ToArray();
|
||
}
|
||
public uint Length()
|
||
{
|
||
return (uint)GetBytes().Length;
|
||
}
|
||
}
|
||
|
||
class FormatChunk
|
||
{
|
||
const string chunkId = "fmt ";
|
||
ushort bitsPerSample, channels;
|
||
uint frequency;
|
||
public string ChunkId { get; private set; }
|
||
public uint ChunkSize { get; private set; }
|
||
public ushort FormatTag { get; private set; }
|
||
public ushort Channels
|
||
{
|
||
get { return channels; }
|
||
set { channels = value; RecalcBlockSizes(); }
|
||
}
|
||
public uint Frequency
|
||
{
|
||
get { return frequency; }
|
||
set { frequency = value; RecalcBlockSizes(); }
|
||
}
|
||
public uint AverageBytesPerSec { get; private set; }
|
||
public ushort BlockAlign { get; private set; }
|
||
public ushort BitsPerSample
|
||
{
|
||
get { return bitsPerSample; }
|
||
set { bitsPerSample = value; RecalcBlockSizes(); }
|
||
}
|
||
public FormatChunk()
|
||
{
|
||
ChunkId = chunkId;
|
||
ChunkSize = 16;
|
||
FormatTag = 1; /* MS PCM (Uncompressed wave file) */
|
||
Channels = 2; /* Default to stereo */
|
||
Frequency = 44100; /* Default to 44100hz */
|
||
BitsPerSample = 16; /* Default to 16bits */
|
||
RecalcBlockSizes();
|
||
}
|
||
public FormatChunk(int frequency, int channels) : this()
|
||
{
|
||
Channels = (ushort)channels;
|
||
Frequency = (ushort)frequency;
|
||
RecalcBlockSizes();
|
||
}
|
||
private void RecalcBlockSizes()
|
||
{
|
||
BlockAlign = (ushort)(channels * (bitsPerSample / 8));
|
||
AverageBytesPerSec = frequency * BlockAlign;
|
||
}
|
||
public byte[] GetBytes()
|
||
{
|
||
List<byte> chunkBytes = new List<byte>();
|
||
|
||
chunkBytes.AddRange(Encoding.ASCII.GetBytes(ChunkId));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(ChunkSize));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(FormatTag));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(Channels));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(Frequency));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(AverageBytesPerSec));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(BlockAlign));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(BitsPerSample));
|
||
|
||
return chunkBytes.ToArray();
|
||
}
|
||
public uint Length()
|
||
{
|
||
return (uint)GetBytes().Length;
|
||
}
|
||
}
|
||
|
||
class DataChunk
|
||
{
|
||
const string chunkId = "data";
|
||
|
||
public string ChunkId { get; private set; }
|
||
public uint ChunkSize { get; set; }
|
||
public List<short> WaveData { get; private set; }
|
||
|
||
public DataChunk()
|
||
{
|
||
ChunkId = chunkId;
|
||
ChunkSize = 0;
|
||
WaveData = new List<short>();
|
||
}
|
||
|
||
public byte[] GetBytes()
|
||
{
|
||
//待优化
|
||
List<byte> chunkBytes = new List<byte>();
|
||
|
||
chunkBytes.AddRange(Encoding.ASCII.GetBytes(ChunkId));
|
||
chunkBytes.AddRange(BitConverter.GetBytes(ChunkSize));
|
||
byte[] bufferBytes = new byte[WaveData.Count * 2];
|
||
Buffer.BlockCopy(WaveData.ToArray(), 0, bufferBytes, 0, bufferBytes.Length);
|
||
chunkBytes.AddRange(bufferBytes.ToList());
|
||
|
||
return chunkBytes.ToArray();
|
||
}
|
||
|
||
public uint Length()
|
||
{
|
||
return (uint)GetBytes().Length;
|
||
}
|
||
|
||
public unsafe void AddSampleData(short* stereoBuffer, int lenght)
|
||
{
|
||
for (int i = 0; i < lenght; i++)
|
||
{
|
||
WaveData.Add(stereoBuffer[i]);
|
||
}
|
||
ChunkSize += (uint)(lenght * 2);
|
||
}
|
||
}
|
||
}
|