如何使用ffmpeg和C＃捕获设备？ [英] How can I catch devices using ffmpeg and C#?

问题描述

我想使用ffmpeg.exe捕获设备。我使用了Process类和相关的ffmpeg命令但没有成功



我尝试过：



i使用以下代码，但输出是什么！我认为这是因为process.start（）执行后进程退出。我怎么能这样做？

I want to catch devices using ffmpeg.exe. i used Process class and related ffmpeg command but no success

What I have tried:

i used following code but the output is nothing!! i think it happens because the process exited as soon as process.start() executed. how can i do that?

static void Main(string[] args)
    {
        ProcessStartInfo startInfo = new ProcessStartInfo();
        startInfo.CreateNoWindow = false;
        startInfo.UseShellExecute = false;
        startInfo.FileName = "ffmpeg.exe";
        startInfo.Arguments = "-list_devices true -f dshow -i dummy";
        startInfo.RedirectStandardOutput = false;


        try
        {
            using (Process process = Process.Start(startInfo))
            {
                while (!process.StandardOutput.EndOfStream)
                {
                    string line = process.StandardOutput.ReadLine();
                    Console.WriteLine(line);
                }

                process.WaitForExit();
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }

        Console.ReadKey();
    }
}

推荐答案

你想捕获输出？这应该回答您的问题：从.NET应用程序捕获控制台输出（C＃） - 堆栈溢出 [ ^ ]

You want to "capture" the output? This should answer your question: Capturing console output from a .NET application (C#) - Stack Overflow[^]

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