[shawn1122]

It depends on the device. I've tested this dump-to-file method on Mag254 set top box and it's able to play the an flv/mp4 over the network even if the host computer is writing to the file. The only downside is it adds an extra ~20 second delay to the video you're watching. The upside is you have a copy of the stream in case you wanted to check something out later.

The other option would be to try livestreamer with the hds:// plugin and see if you can get it to restream with the --player-http argument. Again, it depends on what other device you're using as this method may not work either. It will also introduce some delay though it won't be as bad as the dumping method.