using NAudio.Wave;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class AudioPlayer : MonoBehaviour
{
    public AudioSource PlayVoiceChanger(AudioClip clip)
    {
        // 将AudioClip数据转换为PCM格式
        byte[] audioData = ConvertAudioClipToPCM(clip);

        // 创建一个内存流来存储音频数据
        MemoryStream audioStream = new MemoryStream(audioData);

        // 创建一个WaveStream对象来读取音频数据
        WaveStream waveStream = new RawSourceWaveStream(audioStream, new WaveFormat());

        // 创建一个用于播放音频的Unity AudioSource组件
        AudioSource audioSource = gameObject.AddComponent<AudioSource>();

        // 创建一个NAudio的WaveProvider来包装WaveStream对象
        WaveChannel32 waveProvider = new WaveChannel32(waveStream);

        // 实例化变声效果
        // 在这里可以使用任何你想要的变声效果类

        // 将变声后的音频数据传递给AudioSource组件
        audioSource.clip = AudioClip.Create("Voice Changer Audio", (int)waveProvider.Length, waveProvider.WaveFormat.Channels, waveProvider.WaveFormat.SampleRate, false);
        byte[] audioBytes = new byte[waveProvider.Length];
        waveProvider.Read(audioBytes, 0, audioBytes.Length);

        float[] audioSamples = new float[audioBytes.Length / 2];
        for (int i = 0, j = 0; i < audioBytes.Length; i += 2, j++)
        {
            short sample = (short)((audioBytes[i + 1] << 8) | audioBytes[i]);
            audioSamples[j] = sample / 32768f;
        }

        audioSource.clip.SetData(audioSamples, 0);

        // 播放音频
        audioSource.Play();

        return audioSource;
    }

    // 将AudioClip数据转换为PCM格式
    private byte[] ConvertAudioClipToPCM(AudioClip clip)
    {
        float[] samples = new float[clip.samples * clip.channels];
        clip.GetData(samples, 0);

        byte[] audioData = new byte[samples.Length * 2];
        int audioDataIndex = 0;
        for (int i = 0; i < samples.Length; i++)
        {
            short sample = (short)(samples[i] * 32767);
            byte[] sampleBytes = BitConverter.GetBytes(sample);
            audioData[audioDataIndex++] = sampleBytes[0];
            audioData[audioDataIndex++] = sampleBytes[1];
        }

        return audioData;
    }
}