Desktop Capture

[JDCain]

Would it be possible to use this for Desktop Capture on Windows?
the demo command is "ffmpeg -f dshow -i video="screen-capture-recorder" output.mkv"

Edit: "-f dshow -i video="screen-capture-recorder" output.mkv" does not work since I don't have "screen-capture-recorder" installed. There was no error thrown though.

"-f gdigrab -framerate 30 -i desktop output.mkv" Does work but I am not sure how to stop it.

[JDCain]

I was not able to get this to work using the current framework implementation but I was able to do it directly with the following code:

        var si = new ProcessStartInfo
        {
            Arguments = "-y -f gdigrab -framerate 10 -video_size 1920x1080 -i desktop output.mp4",
            FileName = _fixture.FFmpegPath,
            RedirectStandardInput = true,            
        };

        var ffmpegProcess = Process.Start(si);
        await Task.Delay(15000);
        ffmpegProcess.StandardInput.Write("q");
        ffmpegProcess.WaitForExit();

[cmxl]

Hi @JDCain !

I just tried what you wanted to do and I got it to work with the following example:

var cancelSource = new CancellationTokenSource();
var task = ffmpeg.ExecuteAsync(@"-y -f gdigrab -framerate 10 -video_size 1920x1080 -i desktop C:\Temp\output.mp4", cancelSource.Token);
await Task.Delay(15000);
cancelSource.Cancel();
await task;

Be aware that cancelling throws an exception.
The ffmpeg process will be gracefully terminated since this pullrequest: #11

The new version is not yet published on nuget.
But this will be done tonight ;)