Question

I m trying to extract an mp3 from a flash compatible mp4 file and have so far found FFMpeg and a bunch of different wrappers that all claim to be able to do the job.

Ideally, I d like to not have to rely on shelling to the FFMpeg exe, but none of the wrappers I ve tried seem to work....

Has anyone got any code or advice for how to go about this?

Thanks!

Answer 1

In my opinion using Process class is the way to go:

Create process:

private Process GetProc(string workingDirectory)

    {

        return new Process

                   {

                       StartInfo = new ProcessStartInfo

                                       {

                                           WorkingDirectory = workingDirectory,

                                           UseShellExecute = false,

                                           RedirectStandardOutput = true,

                                           FileName = "YOUR_EXECUTABLE"

                                       }

                   };

    }

Call with parmeters and then get the result. After this you need to check if it was successful or not. Keep it simple.

public string Execute(string arguments)

    {

        var action = GetProc();

        action.StartInfo.Arguments = arguments;

        action.Start();

        action.WaitForExit();

        return action.StandardOutput.ReadToEnd();

    }

Answer 2

An alternative might be to use VLC. There s a library dll, and several semi-supported C# wrappers for it. You should be able to do transcoding, playback, even streaming.

Not sure if it s less work than shelling out to ffmpeg, though.

友情链接