This completely disables all smoothing. Despite what the manual claims, a decay rate of 1.0 does *not*. It's worth pointing out that this depends on the following commit to work properly in --vo=gpu-next, but I don't think working around such a minor detail is worth the trouble, considering people building nightly mpv are probably also building nightly libplacebo it should just work (tm). See-Also: https://github.com/haasn/libplacebo/commit/1c464baaf4c6228dcfac87f19db1dafc22e328c8 See-Also: https://github.com/haasn/libplacebo/commit/83af2d4ebd5086a56f7b1a2f86628ada3612ee7c