TTSCore.cs
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using System.Runtime.InteropServices;
using TTS.Struct;
namespace TTS
{
internal sealed class TTSCore : IDisposable
{
public const string Filename = "sherpa-onnx-c-api";
[DllImport(Filename, CallingConvention = CallingConvention.Cdecl)]
private static extern IntPtr SherpaOnnxCreateOfflineTts(SherpaOnnxOfflineTtsConfig handle);
[DllImport(Filename)]
private static extern IntPtr SherpaOnnxOfflineTtsGenerate(IntPtr createOfflineTtsIntptr, IntPtr text, int sid, float speed);
[DllImport(Filename)]
private static extern void SherpaOnnxDestroyOfflineTts(IntPtr intPtr);
/// <summary>
/// 原生句柄
/// </summary>
private IntPtr thisHandle;
public TTSCore(SherpaOnnxOfflineTtsConfig modelConfig)
{
IntPtr ttsHandle = SherpaOnnxCreateOfflineTts(modelConfig);
if (ttsHandle == IntPtr.Zero)
{
throw new InvalidOperationException("Failed to create SherpaOnnx TTS engine.");
}
thisHandle = ttsHandle;
}
/// <summary>
/// 文字转语音
/// </summary>
/// <param name="text">文字</param>
/// <param name="sid">音色</param>
/// <param name="speed">速度</param>
/// <returns></returns>
public SherpaOnnxGeneratedAudioResult ToSpeech(string text, int sid, float speed = 1f)
{
var result = SherpaOnnxOfflineTtsGenerate(thisHandle, Marshal.StringToCoTaskMemUTF8(text), sid, speed);
SherpaOnnxGeneratedAudio impl = (SherpaOnnxGeneratedAudio)Marshal.PtrToStructure(result, typeof(SherpaOnnxGeneratedAudio));
return new SherpaOnnxGeneratedAudioResult(result, impl);
}
/// <summary>
/// 文字转语音
/// </summary>
/// <param name="text">文字</param>
/// <param name="sid">音色</param>
/// <param name="speed">速度</param>
/// <returns></returns>
public Task<SherpaOnnxGeneratedAudioResult> ToSpeechAsync(string text, int sid, float speed = 1f)
{
return Task.Run(() => ToSpeech(text, sid, speed));
}
~TTSCore()
{
Dispose();
}
public void Dispose()
{
if (this.thisHandle != IntPtr.Zero)
{
SherpaOnnxDestroyOfflineTts(this.thisHandle);
GC.SuppressFinalize(this);
this.thisHandle = IntPtr.Zero;
}
}
}
}