Piping process output to new process

Question

I am having issues piping the output from the rtmpdump process to ffmpeg and I believe the issue is my process is stealing the output of rtmpdump.

In my research I

Answer 1

Came up with a simple solution.

Using the the CMD process as your starting process.

var p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.Arguments = "/C rtmpdump.exe -v -r rtmp://somehost.com/app-name -o - |       ffmpeg.exe -loglevel quiet -i - -c:v copy -c:a libvo_aacenc -b:a 128k \"test.mp4\"";
test.Start();

And using this bit of code right after starting the process to get the last created rtmpdump process.

Process[] allDumps = Process.GetProcessesByName("rtmpdump"); // get all rtmp processes
if (allDumps.Any())
{
    Process newestProcess = allDumps.OrderByDescending(x => x.StartTime).First(); // get the last one created     
    // Add the newly captured process to your list of processes for use later.
}