It did not really work since VLC 0.9. Also, it was meant for use with
vlc_object_get() and the antique VLC_*() functions which are gone.

And bumping autoconf version seems to be a bit much for such a small improvement

This still uses CMake, because I am still lazy.
This has been tested on Linux, but I would like to port it to win32 (and so CMake might not be the best)
This is basically a copy of the KDE-playground code and started as the GSoC of last summer

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

As I understand this has been a temporary workaround for libvlccore, which seems to have been resolved.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

New protected field bool PLItem::b_is_node to have the data at hand.
Then only check this field in PLModel::flags().
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

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

Simplify UPnp detection
Simplify goom2k4 detection

MLP track detection is weak and will fail from time to time. If anyone
know a reliable way I am interested.
Only playing directly the AOB files is supported.

Audio channels in AOB can be separated into two groups with different
properties (bits/sample and/or samplerate). In this case, the second group
is ignored.

This hasn't work for quite some time and we have projectM module.
Moreover, noone complained.

This reverts commit 33835542.
It segfaults as p_next is now uninitialized.

==25869== Conditional jump or move depends on uninitialised value(s)
==25869==    at 0x5078332: GetNextItem (tree.c:441)
==25869==    by 0x5078D7A: playlist_GetNextLeaf (tree.c:362)
==25869==    by 0x5071CFE: ResetCurrentlyPlaying (thread.c:197)
==25869==    by 0x5072952: Thread (thread.c:596)
==25869==    by 0x577AFC6: start_thread (in /lib/libpthread-2.7.so)
==25869==    by 0x5EE65AC: clone (in /lib/libc-2.7.so)