Merge commit '37f57354'

* commit '37f57354':
  swscale: Convert the check check_image_pointers helper to a macro

[14:52:50] <jamrial> michaelni, ubitux: 37f57354 yay or nay? we don't have the warnings mentioned there because we cast the argument
[14:54:10] <@ubitux> i don't really see the improvement, no opinion
[15:04:14] <michaelni> jamrial, functions are better/cleaner than macros
[15:04:20] <michaelni> IMHO that is

This commit is a noop.
Merged-by: James Almer <jamrial@gmail.com>