用C#调用CMD.exe，执行DOS命令,编码FLV

Process p = new Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.Start();
string strOutput=null;
// p.StandardInput.WriteLine("cd D:\\flv\\mplayer");
// p.StandardInput.WriteLine("cd d:");
p.StandardInput.WriteLine(string.Format("D:\\flv\\mplayer\\mencoder
\"c:\\vs.wmv\" -o \"c:\\output.flv\" -of lavf -lavfopts
i_certify_that_my_video_stream_does_not_use_b_frames -oac mp3lame
-lameopts abr:br=56 -ovc lavc -lavcopts
vcodec=flv:vbitrate={0}:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:dia=4:cmp=6:vb_strategy=1
-vf scale=512:-3 -ofps 12 -srate 22050",200));

p.StandardInput.WriteLine("exit");
strOutput = p.StandardOutput.ReadToEnd();
Console.WriteLine(strOutput);
p.WaitForExit();
p.Close();

记得同时要导入：using System.Diagnostics；命名空间。祝你好运