It avoid locking the whole playlist_t when fetching art, which can take a lot
of time...

Until a valid icon is designed/found, I used a DRM text label.

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

stats: Add stream quality counters to Qt4 stastics by counting corrupted blocks and discontinuities found.

Note the quality counters are mere indications and not exact reporting of how much blocks/discontinuity really occured. It will only tell you how often it is noticed.

(still not handling errors correctly)

Conflicts:

	modules/access/directory.c
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

One useless thread gone (the new subsystem does not need a thread).

 You need to attach a callback on the variable 'intf-event' of the vlm
object.
 Becarefull, as (always) inside an event callback you cannot call back
the object (here vlm).

 The input variable "program-scrambled" will contain the state for the current
program only. If at least one es is scrambled then the whole program is.
 The associated event is INPUT_EVENT_PROGRAM.
 If necessary for a better GUI support, we could change it to a list.