WPF RTSP存储到一个文件中的位置

Vlc.DotNet.Core.Medias.MediaBase media1
= new Vlc.DotNet.Core.Medias.PathMedia(" CodeGo.net 
media.AddOption(":sout=#transcode{vcodec=theo,vb=800,
scale=1,acodec=flac,ab=128,channels=2,samplerate=44100}:std{access=file,mux=ogg,
dst=D:\123.mp4}");
VlcControl control = new VlcControl();
control.Media = media;
control.Play();