v4l2: implement --v4l2-fps for real (fixes #7395)
metaengine: folder: test uri against folder first. (fix #10380)

because make_path strips last segment
opengl: correct view port position
xcb/glx: correct viewport position (fixes #10907)
demux: dvdnav: always update chapter variable after title change. (fix

Because event will rebuild chapter variable.