/// <summary>
/// get first line and run it
/// </summary>
/// <param name="main"></param>
/// <param name="util"></param>
/// <param name="token"></param>
public void MakeTaskFromLine(MainForm main, Utilities util, CancellationToken token, String line)
{
// get the first word in the line (should be name of file that will be executed always)
cmdFilename = util.getFileName(line);
// get everything but the first word in line
arguments = util.getArguments(line);
// create a new process object "cmd"
cmd = new System.Diagnostics.Process();
// pass the fileName to be executed
cmd.StartInfo.FileName = cmdFilename;
// pass the arguments for the file
cmd.StartInfo.Arguments = arguments;
// Setting this property to false enables you to redirect input, output, and error streams.
cmd.StartInfo.UseShellExecute = false;
// dont create a cmd window
cmd.StartInfo.CreateNoWindow = true;
// enable redirecting of output from cmd to our textbox
cmd.StartInfo.RedirectStandardOutput = true;
// enable redirecting of input to the cmd
cmd.StartInfo.RedirectStandardInput = true;
// enable redirecting of error output
cmd.StartInfo.RedirectStandardError = true;
// start the process
cmd.Start();
try
{
// create a new task for output, because ffmpeg prints to error stream, account for that, else print normally
Task task_output = new Task(() =>
{
if (cmdFilename.Contains("ffmpeg"))
Stderr(main, token, cmd, stderr);
else
{
Stdout(main, token, cmd, stdout);
Stderr(main, token, cmd, stderr);
}
}, token, TaskCreationOptions.AttachedToParent);
task_output.Start();
}
catch (Exception e)
{
textOutput.AppendText(DateTime.Now.ToString("HH:mm:ss tt") + " - Output Thread Error: " + e.Message + "\n");
}
}
public string GetOutputPathJoined(MainForm main)
{
// put all text from input box to array
main.cmdTextInput.Text.ToArray();
// loop through the array of lines
foreach (String line in main.cmdTextInput.Lines)
{
// put all the words in line into array
String[] words = line.Split('"');
// if mencoder is in line, return the third word, which should be joined filename
if (line.Contains("mencoder"))
{
return words[1];
}
}
return "";
}
/// <summary>
/// This function will always return the last word from the ffmpeg line, should be a path to output
/// </summary>
/// <param name="main"></param>
/// <returns></returns>
public string GetOutputPathEncode(MainForm main)
{
// put all text from input box to array
main.cmdTextInput.Text.ToArray();
// loop through the array of lines
foreach (String line in main.cmdTextInput.Lines)
{
// put all the words in line into array
String[] words = line.Split('"');
// if ffmpeg is in line, return last word
if (line.Contains("ffmpeg"))
{
return words[3];
}
}
return "";
}
public void SetOutputPath(MainForm main, String path)
{
main.cmdTextInput.Text = main.cmdTextInput.Text.Replace(GetOutputPathEncode(main), path);
path = path.Replace("mp4", "avi");
main.cmdTextInput.Text = main.cmdTextInput.Text.Replace(GetOutputPathJoined(main), path);
}
/// <summary>
/// read stdout and output to textbox
/// </summary>
/// <param name="main"></param>
/// <param name="token"></param>
/// <param name="cmd"></param>
/// <param name="stdout"></param>
public void Stdout(MainForm main, CancellationToken token, Process cmd, StreamReader stdout)
{
try
{
// create a new streamreader that will read the cmd output
stdout = cmd.StandardOutput;
// output will be saved here
String stdoutText = "";
// continue reading the stream until it reaches the end
while (!stdout.EndOfStream)
{
if (token.IsCancellationRequested)
{
// tidy up and release resources
throw new OperationCanceledException(token);
}
else
{
// stdout output goes to textbox
stdoutText = stdout.ReadLine();
main.textOutput.AppendText(stdoutText + "\r\n");
}
}
}
catch (Exception e)
{
main.textOutput.AppendText(DateTime.Now.ToString("HH:mm:ss tt") + " - stdout Error: " + e.Message + "\n");
}
finally
{
stdout.Dispose();
}
}
/// <summary>
/// run cmd, the commands will be executed in sequence, first line will execute and program will wait until its complete, then second line etc..
/// </summary>
public void runCmd(MainForm main, CancellationToken token)
{
// objects
Utilities util = new Utilities();
try
{
// store all the lines in textbox into cmdTextInput.Lines[] array
main.cmdTextInput.Lines.ToArray();
// for each line in text input, a task will be created, a while loop ensures that a task has to be completed before next one begins
foreach (String line in main.cmdTextInput.Lines)
{
Task task_cmd = Task.Factory.StartNew(delegate
{ MakeTaskFromLine(main, util, token, line); }, token);
while (!task_cmd.IsCompleted)
{
Thread.Sleep(10);
}
main.textOutput.AppendText(DateTime.Now.ToString("HH:mm:ss tt") + " - Done.\n");
}
} // end try
catch (Exception e)
{
main.textOutput.AppendText(DateTime.Now.ToString("HH:mm:ss tt") + " - CMD Error: " + e.Message + "\n");
}
}