This is superseeded by the new PLModel object. Also remove old
helper functions which are not used anymore.

This simplifies the methods, also using a simpler storage for
dragged items.

This removes the old own-made search functionality and replaces
it by a version the user would expect (i.e. actually hiding non-
found entries).

close #6049

The current playlist model directly operates on the core playlist
datastructures without proper locking for a complete playlist table
reload/update. This resulted in various ugly hacks and workarounds.

The new playlist model encapsulates the data in own objects like
in the qt interface. This allows a much easier integration with
the table view and proper updates from the core playlist.

This way, the previous playlist objects, stored in an ugly map with
pointer strings as keys, pointing to the same pointer inside a
NSValue, is obsolete finally. :-)

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

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

(fixes #13350)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Close #13329

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

This adds support for the H.264 4:4:4 Predictive profile (at 8-bits
per component only).

($Number$ must be calculated from streaming start time)