fix skewed image with odd width request and yuv422
fix skewed image with odd width request and yuv422

See https://forum.shotcut.org/t/crossfade-of-images-distorted-when-
track-size-filter-width-is-odd-number/23058

(cherry picked from commit 0601053152fdcbd9c377d7d65292cccb1e7a5d59)

j-b-m/mlt,mltframework/mlt,mltframework/mlt,mltframework/mlt,j-b-m/mlt,mltframework/mlt,j-b-m/mlt,mltframework/mlt,mltframework/mlt,mltframework/mlt,mltframework/mlt,j-b-m/mlt,j-b-m/mlt,j-b-m/mlt,mltframework/mlt,j-b-m/mlt,j-b-m/mlt,mltframework/mlt,j-b-m/mlt,j-b-m/mlt