* resolve #5183

AutoBuffer::allocate(nsz) didn't work properly when
(sz < nsz < fixed_size). In this case sz remained unchanged.

# Resolved Conflicts:
#	modules/videoio/include/opencv2/videoio.hpp

CMake doesn't work with empty paths ("") or paths which contains "./"

change the `while` loop to check if the two windows created by this example still exist, stop the program otherwise

removed binary

update