I also would like to use zscale which does not require manual
passing of colorspace options such as -pix_fmt, -color_range, -colorspace,
-color_primaries, and -color_trcDefault scaling does not account for the above flags, producing in some cases washed out colors, see e.g.: https://video.stackexchange.com/questions/28889/ffmpeg-does-not-preserve-colors-after-resizing/ https://video.stackexchange.com/questions/32383/ffmpeg-vf-scale-shifts-colors-to-washed-out Presently libzimg2 is packaged in debian repositories, so it can be linked. |