问题
I'm using ffmpeg as a proxy for playing RTSP streams in VLC (because it seems that VLC doesn't work too well with TCP-based RTSP streams). While in Linux I'm doing this by creating a FIFO file and using it as output for ffmpeg, in Windows I can't do this because os.mkfifo() doesn't work under this OS. So I have to find a way to start ffmpeg with subprocess.Popen() and sending it's converted data to VLC in real time (I'm using the VLC bindings for Python).
I tried to set ffmpeg's output to stdout (ffmpeg.exe -y -i rtsp://fms30.mediadirect.ro/live/utv/utv?tcp -acodec libmp3lame -ar 44100 -vodec copy -f flv -), catching that output and sending it to a SimpleHTTPServer class using sockets (well, I'm not sure that this approach was a good idea). I also tried by using pipes (with win32pipe.CreateNamedPipe) but I was still out of luck.
How I could do this? Or why VLC doesn't want to play this stream (rtsp://fms30.mediadirect.ro/live/utv/utv) while ffmpeg will can? This is the actual code used in Linux, which doesn't works on Windows: http://pastebin.com/vqX1Edwg
来源：https://stackoverflow.com/questions/9663772/exchange-data-between-ffmpeg-and-video-player