Close #2429 and #2460.

Except for a few cases:
 - dialog providers -> cannot be selected explicitly,
 - window providers -> cannot be selected explicitly,
 - ffmpeg-deinterlace -> "ffmpeg" does not make much sense here??
 - kate -> already duplicating its own shortcut

Note sure about packetizers: added just in case

XVideo is now usable for YUV!

Signed-off-by: Laurent Aimar <fenrir@videolan.org>

No functionnal changes.

Based on an initial patch from Nicolas Chauvet.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Close #2427.

Only libvlc_priv was needed.

It is simply unneeded.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Allocation of U/V planes and unsupported chroma fallback are critically
missing. XvPort grabbing is not implemented. Also, full screen, scale,
zoom, A.R. and crop are missing as with the other XCB plugin.

It has no functionnality changes.

Sorry for the previous one.