psz_logmode is tested for NULLity, so we need to use *NonEmpty*.
Also, always delete the variable. If the reference count was 1, we will
revert back to the configuration value, which makes no difference.

ATM, java bindings use Enum.ordinal() to convert the enum name to its value. However, this approach is broken in the case of discontinuous enums such as libvlc_media_option_t.
Java bindings maintainers should convert their code to use the enum.value() method.

Pointed-out-by Mike Schrag <mschrag@mdimension.com>.

This is done to better diagnosticate misconfiguration of libvlc path.

Spotted by Dominique Leuenberger. Thanks.

This works around GNU coreutils nohup not working with VLC.
Pointed-out-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>

It is used in many places, namely all X11 plugins _except_ the video
display ones. So it did not make much sense to keep it there IMHO.

This reverts commit 1e56f368.

Noticed by GBeauchesne.

PIX_FMT_DXVA2_VLD is not yet in official ffmpeg.

This fixes the opengl "vout display" on Mac OS X.