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using System;
using System.Diagnostics;
using System.IO;
using System.Threading;
using MediaBrowser.Common.Logging;
namespace MediaBrowser.Api.Transcoding
{
/// <summary>
/// Represents an active transcoding job
/// </summary>
public class TranscodingJob
{
public string InputFile { get; set; }
public string OutputFile { get; set; }
public string TranscoderPath { get; set; }
public string Arguments { get; set; }
public TranscoderJobStatus Status { get; private set; }
/// <summary>
/// Starts the job
/// </summary>
public void Start()
{
ApiService.AddTranscodingJob(this);
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = true;
startInfo.UseShellExecute = false;
startInfo.FileName = TranscoderPath;
startInfo.WorkingDirectory = Path.GetDirectoryName(TranscoderPath);
startInfo.Arguments = Arguments;
Logger.LogInfo("TranscodingJob.Start: " + TranscoderPath + " " + Arguments);
Process process = new Process();
process.StartInfo = startInfo;
process.EnableRaisingEvents = true;
process.Start();
process.Exited += process_Exited;
}
void process_Exited(object sender, EventArgs e)
{
ApiService.RemoveTranscodingJob(this);
Process process = sender as Process;
// If it terminated with an error
if (process.ExitCode != 0)
{
Status = TranscoderJobStatus.Error;
// Delete this since it won't be valid
if (File.Exists(OutputFile))
{
File.Delete(OutputFile);
}
}
else
{
Status = TranscoderJobStatus.Completed;
}
process.Dispose();
}
/// <summary>
/// Provides a helper to wait for the job to exit
/// </summary>
public void WaitForExit()
{
while (true)
{
TranscoderJobStatus status = Status;
if (status == TranscoderJobStatus.Completed || status == TranscoderJobStatus.Error)
{
break;
}
Thread.Sleep(500);
}
}
}
public enum TranscoderJobStatus
{
Queued,
Started,
Completed,
Error
}
}
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