Improving FBank computation and implementing the dispose method (#1497)

manyeyes

2024-03-14 a2d6575d89c2ad6221d6ccc9ef148acad8c29b0c

 runtime/csharp/AliFsmnVad/AliFsmnVadSharp/AliFsmnVad.cs

@@ -1,19 +1,16 @@
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.ML;
using AliFsmnVadSharp.Model;
using AliFsmnVadSharp.Utils;
using Microsoft.Extensions.Logging;
using Microsoft.ML.OnnxRuntime;
using Microsoft.ML.OnnxRuntime.Tensors;
using Microsoft.Extensions.Logging;
using AliFsmnVadSharp.Model;
using AliFsmnVadSharp.Utils;

namespace AliFsmnVadSharp
{
    public class AliFsmnVad
    public class AliFsmnVad : IDisposable
    {
        private bool _disposed;
        private InferenceSession _onnxSession;
        private readonly ILogger<AliFsmnVad> _logger;
        private readonly ILogger _logger;
        private string _frontend;
        private WavFrontend _wavFrontend;
        private int _batchSize = 1;
@@ -23,7 +20,7 @@

        public AliFsmnVad(string modelFilePath, string configFilePath, string mvnFilePath, int batchSize = 1)
        {
            Microsoft.ML.OnnxRuntime.SessionOptions options = new Microsoft.ML.OnnxRuntime.SessionOptions();
            SessionOptions options = new SessionOptions();
            options.AppendExecutionProvider_CPU(0);
            options.InterOpNumThreads = 1;
            _onnxSession = new InferenceSession(modelFilePath, options);
@@ -371,17 +368,41 @@
            }
            return speech;
        }
        protected virtual void Dispose(bool disposing)
        {
            if (!_disposed)
            {
                if (disposing)
                {
                    if (_onnxSession != null)
                    {
                        _onnxSession.Dispose();
                    }
                    if (_wavFrontend != null)
                    {
                        _wavFrontend.Dispose();
                    }
                    if (_encoderConfEntity != null)
                    {
                        _encoderConfEntity = null;
                    }
                    if (_vad_post_conf != null)
                    {
                        _vad_post_conf = null;
                    }
                }
                _disposed = true;
            }
        }












        public void Dispose()
        {
            Dispose(disposing: true);
            GC.SuppressFinalize(this);
        }
        ~AliFsmnVad()
        {
            Dispose(_disposed);
        }
    }
}