104 lines
2.9 KiB
C#
104 lines
2.9 KiB
C#
/// Copyright (c) 2023 Xiaomi Corporation (authors: Fangjun Kuang)
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/// Copyright (c) 2023 by manyeyes
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/// 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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public class OnlineRecognizerResult
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{
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public OnlineRecognizerResult(IntPtr handle)
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{
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Impl impl = (Impl)Marshal.PtrToStructure(handle, typeof(Impl));
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// PtrToStringUTF8() requires .net standard 2.1
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// _text = Marshal.PtrToStringUTF8(impl.Text);
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int length = 0;
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unsafe
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{
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byte* buffer = (byte*)impl.Text;
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while (*buffer != 0)
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{
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++buffer;
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length += 1;
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}
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}
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byte[] stringBuffer = new byte[length];
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Marshal.Copy(impl.Text, stringBuffer, 0, length);
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_text = Encoding.UTF8.GetString(stringBuffer);
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_tokens = new String[impl.Count];
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unsafe
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{
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byte* buf = (byte*)impl.Tokens;
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for (int i = 0; i < impl.Count; i++)
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{
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length = 0;
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byte* start = buf;
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while (*buf != 0)
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{
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++buf;
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length += 1;
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}
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++buf;
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stringBuffer = new byte[length];
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fixed (byte* pTarget = stringBuffer)
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{
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for (int k = 0; k < length; k++)
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{
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pTarget[k] = start[k];
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}
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}
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_tokens[i] = Encoding.UTF8.GetString(stringBuffer);
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}
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}
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unsafe
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{
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float* t = (float*)impl.Timestamps;
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if (t != null)
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{
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_timestamps = new float[impl.Count];
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fixed (float* pTarget = _timestamps)
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{
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for (int i = 0; i < impl.Count; i++)
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{
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pTarget[i] = t[i];
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}
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}
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}
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else
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{
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_timestamps = new float[] {};
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}
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}
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}
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[StructLayout(LayoutKind.Sequential)]
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struct Impl
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{
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public IntPtr Text;
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public IntPtr Tokens;
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public IntPtr TokensArr;
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public IntPtr Timestamps;
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public int Count;
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}
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private String _text;
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public String Text => _text;
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private String[] _tokens;
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public String[] Tokens => _tokens;
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private float[] _timestamps;
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public float[] Timestamps => _timestamps;
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}
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}
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