AVCapture: fix a crash when buffer allocator cannot initialize a MSPicture...
AVCapture: fix a crash when buffer allocator cannot initialize a MSPicture (memcpy into uninitialized memory) and fix a deadlock when the frame cannot be locked.
AVCapture: fix a crash when buffer allocator cannot initialize a MSPicture (memcpy into uninitialized memory) and fix a deadlock when the frame cannot be locked.