private void OnRecordingStopped(object sender, StoppedEventArgs err)
{
if (err.Exception != null)
{
InfoMessage?.Invoke(this, $"Ошибка: {err.Exception.Message}");
}
ffmpegProcess?.StandardOutput.Close();
ffmpegProcess?.StandardInput.Close();
ffmpegProcess?.Kill();
_audioCapture.RecordingStopped -= OnRecordingStopped;
_audioCapture.DataAvailable -= OnDataAvailable;
_audioCapture.Dispose();
_audioCapture = null;
_threadSafeBoolBackValue = 0;
Task.Run(() => { _transportService.SendFinalData(); }).Wait();
Task.Run(() => { _transportService.CloseConnection(); }).Wait();
InfoMessage?.Invoke(this, "Запись остановлена");
RecordLevel?.Invoke(this, 0.0F);
RecordStopped?.Invoke(this, EventArgs.Empty);
}
public async Task TranscribeFile(string filePath)
{
InfoMessage.Invoke(this, "Обработка файла...");
_cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = _cancellationTokenSource.Token;
var process = new Process();
process.StartInfo.FileName = "ffmpeg.exe";
process.StartInfo.Arguments = $"-i \"{filePath}\" -ar 8000 -ac 1 -f s16le -";
process.StartInfo.RedirectStandardInput = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.Start();
var task = Task.Run(() =>
{
FFmpegPercentageParser ffmpegParser = new FFmpegPercentageParser();
string line;
int previousPercent;
while ((line = process.StandardError.ReadLine()) != null && !cancellationToken.IsCancellationRequested)
{
ffmpegParser.Parse(line);
if (ffmpegParser.GetPercentCompleted() is int currentPercent)
{
previousPercent = currentPercent;
PercentageTranscribed?.Invoke(this, currentPercent);
}
}
});
var buffer = new byte[8000];
int read;
while ((read = process.StandardOutput.BaseStream.Read(buffer, 0, buffer.Length)) > 0 && !cancellationToken.IsCancellationRequested)
{
await _transportService.SendData(buffer, read);
}
await _transportService.SendFinalData();
await _transportService.CloseConnection();
process.Kill();
_cancellationTokenSource.Dispose();
_cancellationTokenSource = null;
InfoMessage.Invoke(this, "Операция завершена");
}