Fix segfault if memory allocation fails

does not exist.

Also try to fix a few leaks (but meta handling still seems suspicious).

P.S.: That sort of things should be obvious.
Please don't commit such crap without reviewing.

Empty parameter means "default/guess".
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

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

-libvlc_video_get_marquee_option_as_int    : get an option int value
-libvlc_video_get_marquee_option_as_string : get an option string value
-libvlc_video_set_marquee_option_as_int    : enable, disable or set an int value
-libvlc_video_set_marquee_option_as_string : set a string value to marq

Modified patch from Cyril Mathe <cmathe@actech-innovation.com>

This API implementation is very limitied, as no presistent state is preserved, and settings can only be set when a vout is around. This makes the whole thing very limitating.

Hopefuly we'll get a better implementation over the time.

This script starts to get unreadable, it's probably time to refresh it.

As skins2(Windows) runs in the main thread, special care must be given to playlist/input/vout termination. Up to now, vout threads kept on running with the GUI event loop no longer operational, leading to vlc hangings.

It allows playing multi-channels TTA and fixed a segfault as the decoder
does not check for sufficient space.

It seems to create an infinite loop.

Since skins2(Windows) is run in the main thread, the default mechanism couldn't work.

New API version is 1.9.0.11 (old version was 1.7.5)

It should work as the vout never deletes the pictures used by a decoder.