private void resetTranscoderFile(TranscoderFile file)
{
if (InvokeRequired)
{
Invoke(new ResetTranscoderFileCallback(resetTranscoderFile), file);
return;
}
var index = TranscoderFiles.IndexOf(file);
TranscoderFiles.ResetItem(index);
}
async void goButton_Click(object sender, EventArgs e)
{
if (Running)
{
if (TokenSource.IsCancellationRequested)
{
return;
}
TokenSource.Token.Register(() => {
setRunning(false);
});
TokenSource.Cancel();
return;
}
if (String.IsNullOrWhiteSpace(outputTextbox.Text))
{
MessageBox.Show("You must set the Output folder.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (bitrateNumericUpDown.Value < 64 || bitrateNumericUpDown.Value > 320)
{
MessageBox.Show("You must set a bitrate from 64-320.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
for (int i = 0; i < TranscoderFiles.Count; i++)
{
var file = TranscoderFiles[i];
if (file.Done)
{
file.Done = false;
TranscoderFiles.ResetItem(i);
}
}
setRunning(true);
var bitrate = Convert.ToInt32(bitrateNumericUpDown.Value);
var encoderType = encoderComboBox.SelectedItem as TranscoderFile.Type;
TokenSource = new CancellationTokenSource();
await Task.Run(async() => {
int i = 0;
while (i < TranscoderFiles.Count)
{
var file = TranscoderFiles[i];
using (var decoder = new Process())
using (var encoder = new Process()) {
decoder.StartInfo = new ProcessStartInfo()
{
FileName = Path.Combine(Environment.CurrentDirectory, Encoder.FFMPEG.FilePath),
Arguments = String.Format("-i \"{0}\" -vn -f wav -", file.FilePath),
WindowStyle = ProcessWindowStyle.Hidden,
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true
};
decoder.EnableRaisingEvents = true;
decoder.ErrorDataReceived += delegate(object processSender, DataReceivedEventArgs processEventArgs) {
if (processEventArgs.Data != null)
{
file.Log.AppendLine(String.Format("{0}", processEventArgs.Data));
}
};
encoder.StartInfo = new ProcessStartInfo()
{
FileName = Path.Combine(Environment.CurrentDirectory, encoderType.Encoder.FilePath),
Arguments = file.BuildCommandLineArgs(encoderType, bitrate, outputTextbox.Text),
WindowStyle = ProcessWindowStyle.Hidden,
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true
};
encoder.EnableRaisingEvents = true;
encoder.OutputDataReceived += delegate(object processSender, DataReceivedEventArgs processEventArgs) {
file.Log.AppendLine(String.Format("{0}", processEventArgs.Data));
updateStatus(processEventArgs.Data);
};
encoder.ErrorDataReceived += delegate(object processSender, DataReceivedEventArgs processEventArgs) {
if (processEventArgs.Data != null && !processEventArgs.Data.StartsWith("["))
{
file.Log.AppendLine(String.Format("{0}", processEventArgs.Data));
}
updateStatus(processEventArgs.Data);
};
encoder.Exited += delegate(object processSender, EventArgs processEventArgs) {
file.Done = true;
resetTranscoderFile(file);
};
selectDataGridViewRow(i);
var destinationFolder = file.OutputFolderPath(outputTextbox.Text);
if (!Directory.Exists(destinationFolder))
{
try {
Directory.CreateDirectory(destinationFolder);
} catch (Exception ex) {
file.Log.AppendLine(ex.Message);
updateStatus(ex.Message);
if (TokenSource.IsCancellationRequested)
{
updateStatus("Stopped");
return;
}
i++;
continue;
}
}
encoder.Start();
encoder.BeginOutputReadLine();
encoder.BeginErrorReadLine();
if (file.RequiresDecoding)
{
file.Log.AppendLine(String.Format("{0} {1}", decoder.StartInfo.FileName, decoder.StartInfo.Arguments));
file.Log.AppendLine(String.Format("{0} {1}", encoder.StartInfo.FileName, encoder.StartInfo.Arguments));
decoder.Start();
decoder.BeginErrorReadLine();
try {
await decoder.StandardOutput.BaseStream.CopyToAsync(encoder.StandardInput.BaseStream, 4096, TokenSource.Token);
await encoder.StandardInput.BaseStream.FlushAsync(TokenSource.Token);
} catch (TaskCanceledException) { }
encoder.StandardInput.Close();
}
else
{
file.Log.AppendLine(String.Format("{0} {1}", encoder.StartInfo.FileName, encoder.StartInfo.Arguments));
}
while (!TokenSource.IsCancellationRequested && !encoder.HasExited)
{
encoder.WaitForExit(500);
}
if (file.RequiresDecoding && !decoder.HasExited)
{
decoder.Kill();
}
if (!encoder.HasExited)
{
encoder.Kill();
}
if (encoder.ExitCode == 0 || file.RequiresDecoding)
{
i++; // goto next file
}
else
{
file.RequiresDecoding = true; // try again with decoding
}
if (TokenSource.IsCancellationRequested)
{
updateStatus("Stopped");
return;
}
}
}
updateStatus("Ready");
}, TokenSource.Token);
setRunning(false);
}