public AudioEncoder(EncoderSettings settings, string path, Stream IO = null)
{
m_settings = settings;
_path = path;
useTempFile = m_settings.Parameters.Contains("%I");
tempFile = path + ".tmp.wav";
_encoderProcess = new Process();
_encoderProcess.StartInfo.FileName = m_settings.Path;
_encoderProcess.StartInfo.Arguments = m_settings.Parameters.Replace("%O", "\"" + path + "\"").Replace("%M", m_settings.EncoderMode).Replace("%P", m_settings.Padding.ToString()).Replace("%I", "\"" + tempFile + "\"");
_encoderProcess.StartInfo.CreateNoWindow = true;
if (!useTempFile)
{
_encoderProcess.StartInfo.RedirectStandardInput = true;
}
_encoderProcess.StartInfo.UseShellExecute = false;
if (!m_settings.Parameters.Contains("%O"))
{
_encoderProcess.StartInfo.RedirectStandardOutput = true;
}
if (useTempFile)
{
wrt = new WAV.AudioEncoder(new WAV.EncoderSettings(settings.PCM), tempFile);
return;
}
bool started = false;
Exception ex = null;
try
{
started = _encoderProcess.Start();
if (started)
{
_encoderProcess.PriorityClass = Process.GetCurrentProcess().PriorityClass;
}
}
catch (Exception _ex)
{
ex = _ex;
}
if (!started)
{
throw new Exception(m_settings.Path + ": " + (ex == null ? "please check the path" : ex.Message));
}
if (_encoderProcess.StartInfo.RedirectStandardOutput)
{
Stream outputStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read);
outputBuffer = new CyclicBuffer(2 * 1024 * 1024, _encoderProcess.StandardOutput.BaseStream, outputStream);
}
Stream inputStream = new CyclicBufferOutputStream(_encoderProcess.StandardInput.BaseStream, 128 * 1024);
wrt = new WAV.AudioEncoder(new WAV.EncoderSettings(settings.PCM), path, inputStream);
}
public void Close()
{
if (closed)
{
return;
}
closed = true;
wrt.Close();
if (useTempFile && (_finalSampleCount < 0 || wrt.Position == _finalSampleCount))
{
bool started = false;
Exception ex = null;
try
{
started = _encoderProcess.Start();
if (started)
{
_encoderProcess.PriorityClass = Process.GetCurrentProcess().PriorityClass;
}
}
catch (Exception _ex)
{
ex = _ex;
}
if (!started)
{
throw new Exception(m_settings.Path + ": " + (ex == null ? "please check the path" : ex.Message));
}
}
wrt = null;
if (!_encoderProcess.HasExited)
{
_encoderProcess.WaitForExit();
}
if (useTempFile)
{
File.Delete(tempFile);
}
if (outputBuffer != null)
{
outputBuffer.Close();
}
if (_encoderProcess.ExitCode != 0)
{
throw new Exception(String.Format("{0} returned error code {1}", m_settings.Path, _encoderProcess.ExitCode));
}
}
