This patch exposes the adjust module to libvlc_media_player/libvlc_video
and adds a frequently requested featureset: to manipulate brightness,
contrast, gamma, saturation and hue through libvlc. The patch introduces
a new set of functions analogous to
libvlc_video_{get,set}_{marq,logo}_*, hence the use of the function set
should be self explanatory.

New Functions:

* value = libvlc_video_get_adjust_int( p_mi, option );
* libvlc_video_set_adjust_int( p_mi, option, value );
* value = libvlc_video_get_adjust_float( p_mi, option );
* libvlc_video_set_adjust_float( p_mi, option, value );

New Options:

* libvlc_adjust_Enable
* libvlc_adjust_Contrast
* libvlc_adjust_Brightness
* libvlc_adjust_Hue
* libvlc_adjust_Saturation
* libvlc_adjust_Gamma
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Shows user where the current input is on icon_view with tree-mode.

Not sure if it's the best way, but this enables
to show the current item even when input is stopped.

Not sure if I remembered to do all the checks needed for errors, but
works for me ok.

Not added to makefiles, as katsomo.fi hasn't responded yet.

uses vlc.strings.iconv to get correct encoding

We must first close the stream before deleting the tracks, because tracks can be used in StreamClose callback.
This crash could only happen in recents version of live555 library.

ac_cv_path_XX only caches positive results, not failures

Signed-off-by: Rafaël Carré <rafael.carre@gmail.com>

distcheck uses --prefix instead of DESTDIR :(

Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

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

...omitting b_stop argument, because it is true in all use cases.

This reverts commit 926bbf14.

Feel free to change what you don't like.

Synchronize correctly with the EPG structures provided by the core.
Remove EPGItems from the EPGView when they are not anymore stored.

It closes #3522.