psychedelic: fix scaling crash due to invalid video format
psychedelic: fix scaling crash due to invalid video format

(cherry picked from commit 61ed600c10c3521aa92054da6c19bc8d80bbf245)

jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2