WebRTC vs. WebSockets for Ubuntu ROS2 <--> iPhone

[wetoo-cando]

We are currently using https://github.com/christophebedard/ipad-lidar2ros to stream RGB+LiDAR data from an iPhone Pro to an Ubuntu 22.04 PC over WebSockets using ros2-web-bridge.

Seems like WebRTC could be better suited for our application (streaming visual data), rather than using WebSockets that was primarily designed for transmitting text/string data using formats such as JSON.

I am guessing (hardware accelerated) codecs would also be easier to integrate with WebRTC than with WebSockets.

Can you share your thoughts on the above issues?