Most probably nobody uses this (in VLC context). In fact, it would
cause many existing VLC command line examples /out there/ to fail
mysteriously.

This simplifies the code a little bit and kills a static variable.

Prevent unnecessary memory accumulation when new submenus are
created again and again.

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

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

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

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

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

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

Close #3471

Just deactivate proper seeking

This fixes the RTP input failing completely.

Jitter computation is, by design, relative to the time of arrival of
packets. Normally, it should be the estimated time of arrival (ETA) of
the missing packet in the sequence, plus a tolerance value computed
from the delay variance (jitter). Unfortunately, we do not know that
ETA since we do not know the RTP timestamp of missing packets.

This reverts commit 9d9ffe9f.