AVFoundation: fix memory leak

Using 'self' in a block maintains a strong reference to it, the previous
code would never release that reference and therefore leak the
AVFMediaPlayerSessionObserver object when the session was deleted.
Captured variables used in the relevant block are now marked with
'__block' to make sure no strong references are maintained.
We now also make sure the session still exist when that callback block
is called.

Change-Id: I847b524d8692559fe5884517abb5b9cc7696b4fd
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>

0 files changed, 0 insertions, 0 deletions