Stream high 4K video streams over USB

[Ektacom]

I would like to stream high quality video over USB.

I'm always frustrated to have a camera able to make high quality video and not to have any solution to stream in real time these high quality videos (e.g. 4K videos). We can only download a posteriori the recorded videos.
I think this could be easily done: instead of writing the compressed video on the SD card, the video should be packetised and stream over the USB (USB have a high bandwidth). Maybe, it could even be possible to stream and record at the same time.

A lot of IP cameras propose this solution but they are not dedicated to sport applications. Having this functionnality on a gopro could be a nice addon.

[tcamise-gpsw]

duplicate of #173