Contribs: build libprojectM trunk (fails for OSX for now).

This was totally broken over the last year

Also provide workarounds for some broadcasters which ignore this standard.

(cherry picked from commit 97f9b3dc9f3b9ba8ca9b74ca95f1113d76ac951a)
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

(and partial support for double precision, but who cares...)

Chrominance planes swap had been broken by the vout rework.

This uses the same numbering scheme as xvinfo and hopefully the old
Xlib XVideo plugin.

Patch corrected by <jb@videolan.org>

Fix 271354ef.
locale_match() only support 2 char code and i can't be bothered to expand it for a rare language

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

This reverts commit 8f9391f6.

(The root cause for this problem was fixed in commit
49482677)

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