public static void ExportMp4(
string sourceFilePath,
string destinationPath,
FFMpegData ffMpegData,
CancellationToken cancellationToken)
{
var allowToExit = false;
var converterPath = Path.Combine(MainController.Instance.Settings.FFMpegPackagePath, "ffmpeg.exe");
var postProcessorPath = Path.Combine(MainController.Instance.Settings.FFMpegPackagePath, "qt-faststart.exe");
var tmpVideoFilePath = Path.Combine(destinationPath, Path.ChangeExtension(Path.GetFileName(Path.GetTempFileName()), ".mp4"));
var destinationVideoFilePath = Path.Combine(destinationPath, Path.ChangeExtension(Path.GetFileName(sourceFilePath), ".mp4"));
if (!File.Exists(sourceFilePath) || !File.Exists(converterPath) || !File.Exists(postProcessorPath)) return;
var videoConverter = new Process
{
StartInfo = new ProcessStartInfo(converterPath, String.Format("-i \"{0}\" -c:v libx264 -crf 23 -b {1} \"{2}\"", sourceFilePath,
ffMpegData.Bitrate, tmpVideoFilePath))
{
UseShellExecute = false,
RedirectStandardError = false,
RedirectStandardOutput = false,
CreateNoWindow = true,
},
EnableRaisingEvents = true
};
videoConverter.Exited += (converterSender, converterE) =>
{
var videoPostProcessor = new Process
{
StartInfo = new ProcessStartInfo(postProcessorPath, String.Format("{0} {1}", tmpVideoFilePath, destinationVideoFilePath))
{
UseShellExecute = false,
RedirectStandardError = false,
RedirectStandardOutput = false,
CreateNoWindow = true,
},
EnableRaisingEvents = true
};
videoPostProcessor.Exited += (postProcessorSender, postProcessorE) =>
{
if (!File.Exists(destinationVideoFilePath))
if (File.Exists(tmpVideoFilePath))
File.Copy(tmpVideoFilePath, destinationVideoFilePath, true);
if (File.Exists(tmpVideoFilePath))
try
{
File.Delete(tmpVideoFilePath);
}
catch { }
allowToExit = true;
};
videoPostProcessor.Start();
};
videoConverter.Start();
while (!allowToExit)
{
Thread.Sleep(2000);
if (cancellationToken.IsCancellationRequested)
{
try
{
videoConverter.Kill();
}
catch { }
allowToExit = true;
}
}
}
public static void GenerateThumbnails(
string sourceFilePath,
string destinationPath,
FFMpegData ffMpegData,
CancellationToken cancellationToken)
{
var allowToExit = false;
var converterPath = Path.Combine(MainController.Instance.Settings.FFMpegPackagePath, "ffmpeg.exe");
var tmpOutputFilePath = Path.Combine(destinationPath, Path.ChangeExtension(Path.GetFileName(Path.GetTempFileName()), ".png"));
var destinationOutputFilePath = Path.Combine(destinationPath, Path.ChangeExtension(Path.GetFileName(sourceFilePath), ".png"));
if (!File.Exists(sourceFilePath) || !File.Exists(converterPath)) return;
var videoConverter = new Process
{
StartInfo = new ProcessStartInfo(converterPath, String.Format("-i \"{0}\" -ss {2} -vframes 1 -y \"{1}\"", sourceFilePath, tmpOutputFilePath,
(int)Math.Floor(ffMpegData.Duration / 100.0 * 25)))
{
UseShellExecute = false,
RedirectStandardError = false,
WindowStyle = ProcessWindowStyle.Hidden,
RedirectStandardOutput = false,
CreateNoWindow = true,
},
EnableRaisingEvents = true
};
videoConverter.Exited += (converterSender, converterE) =>
{
if (!File.Exists(destinationOutputFilePath) && File.Exists(tmpOutputFilePath))
File.Copy(tmpOutputFilePath, destinationOutputFilePath, true);
if (File.Exists(tmpOutputFilePath))
try
{
File.Delete(tmpOutputFilePath);
}
catch { }
allowToExit = true;
};
videoConverter.Start();
while (!allowToExit)
{
Thread.Sleep(2000);
if (cancellationToken.IsCancellationRequested)
{
try
{
videoConverter.Kill();
}
catch { }
allowToExit = true;
}
}
}
