91 lines
3.0 KiB
C#
91 lines
3.0 KiB
C#
/// Copyright (c) 2024.5 by 东风破
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace SherpaOnnx
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{
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// IntPtr is actually a `const float*` from C++
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public delegate int OfflineTtsCallback(IntPtr samples, int n);
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public class OfflineTts : IDisposable
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{
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public OfflineTts(OfflineTtsConfig config)
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{
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IntPtr h = SherpaOnnxCreateOfflineTts(ref config);
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_handle = new HandleRef(this, h);
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}
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public OfflineTtsGeneratedAudio Generate(String text, float speed, int speakerId)
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{
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byte[] utf8Bytes = Encoding.UTF8.GetBytes(text);
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IntPtr p = SherpaOnnxOfflineTtsGenerate(_handle.Handle, utf8Bytes, speakerId, speed);
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return new OfflineTtsGeneratedAudio(p);
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}
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public OfflineTtsGeneratedAudio GenerateWithCallback(String text, float speed, int speakerId, OfflineTtsCallback callback)
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{
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byte[] utf8Bytes = Encoding.UTF8.GetBytes(text);
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IntPtr p = SherpaOnnxOfflineTtsGenerateWithCallback(_handle.Handle, utf8Bytes, speakerId, speed, callback);
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return new OfflineTtsGeneratedAudio(p);
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}
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public void Dispose()
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{
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Cleanup();
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// Prevent the object from being placed on the
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// finalization queue
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System.GC.SuppressFinalize(this);
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}
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~OfflineTts()
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{
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Cleanup();
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}
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private void Cleanup()
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{
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SherpaOnnxDestroyOfflineTts(_handle.Handle);
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// Don't permit the handle to be used again.
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_handle = new HandleRef(this, IntPtr.Zero);
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}
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private HandleRef _handle;
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public int SampleRate
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{
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get
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{
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return SherpaOnnxOfflineTtsSampleRate(_handle.Handle);
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}
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}
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public int NumSpeakers
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{
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get
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{
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return SherpaOnnxOfflineTtsNumSpeakers(_handle.Handle);
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}
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}
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[DllImport(Dll.Filename)]
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private static extern IntPtr SherpaOnnxCreateOfflineTts(ref OfflineTtsConfig config);
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[DllImport(Dll.Filename)]
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private static extern void SherpaOnnxDestroyOfflineTts(IntPtr handle);
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[DllImport(Dll.Filename)]
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private static extern int SherpaOnnxOfflineTtsSampleRate(IntPtr handle);
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[DllImport(Dll.Filename)]
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private static extern int SherpaOnnxOfflineTtsNumSpeakers(IntPtr handle);
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[DllImport(Dll.Filename)]
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private static extern IntPtr SherpaOnnxOfflineTtsGenerate(IntPtr handle, [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.I1)] byte[] utf8Text, int sid, float speed);
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[DllImport(Dll.Filename, CallingConvention = CallingConvention.Cdecl)]
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private static extern IntPtr SherpaOnnxOfflineTtsGenerateWithCallback(IntPtr handle, [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.I1)] byte[] utf8Text, int sid, float speed, OfflineTtsCallback callback);
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}
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}
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