tree a1d1fc46eb5d553144521ae9e2e6bba7ef3c1265
parent 7a084710fae7ebe78c6c437df746b39ab90ef977
author Vignesh Venkatasubramanian <vigneshv@google.com> 1660762319 -0700
committer Vignesh Venkatasubramanian <vigneshvg@users.noreply.github.com> 1660765970 -0700

avifenc: Set YUV format to 400 for grayscale PNGs

If the input is a grayscale PNG file, then AVIF output format can
be set to monochrome (YUV400) if the user does not set the --yuv
option explicitly.