lavfi/nlmeans: add SIMD-friendly assumptions for compute_safe_ssd_integral_image

SIMD code will not have to deal with padding itself. Overwriting in that
function may have been possible but involve large overreading of the
sources. Instead, we simply make sure the width to process is always a
multiple of 16. Additionally, there must be some actual area to process
so the SIMD code can have its boundary checks after processing the first
pixels.

0 files changed, 0 insertions, 0 deletions