Flip (i.e. mirror horizontally) the local video output
Issue generated from Tuleap's migration script. Originally submitted by: Baptiste Jonglez (baptiste)
What I call the "local video output" is the small rectangle showing the output of the local webcam during a video call.
Currently, at least with the Gnome and Windows clients, this video output is not flipped horizontally, which is somewhat confusing. As a user, I would expect this video output to behave like a physical mirror/looking glass, in which the left-side is equal to the physical left-side of the user.