Comment 24 for bug 1355747

you can for example change the new resolution via --resolution parameter. By default a size of 640x480 is hardcoded in the video plugins and all video plugins are currently only forcing a size and don't correct themself when the returned window has a different size. This is (imho) not trivial to change. I think you have to talk to upstream to get the complete design of the resolution handling (and maybe even the plugin api) changed.

Maybe rice could work with an resize event after the window was created but at least all other plugins don't support resizing.