Disable projection for 360 video
This is essentially the opposite of #18536
We want to be able to force PROJECTION_MODE_RECTANGULAR
for a properly tagged 360 source video, ideally from the LibVLC C API.
This will allow properly mapping the texture frame on a sphere in 3D game engines (see vlc-unity#129). Cubemaps may be interesting as well.
Edited by François Cartegnie