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authornand <nand@lavabit.com>2012-12-23 19:49:19 +0100
committerwm4 <wm4@nowhere>2012-12-28 13:43:24 +0100
commitb32f2ef0d344e224a24ed72bf7abf394675ea58f (patch)
treea17fed17382267c33866cbaab72d51a5308b4017 /audio
parent6be50fa7736e0095ace5cb1b6e8da35aaa5e52df (diff)
downloadmpv-b32f2ef0d344e224a24ed72bf7abf394675ea58f.tar.bz2
mpv-b32f2ef0d344e224a24ed72bf7abf394675ea58f.tar.xz
vo_opengl: use more precise gamma for BT.709 with color management
Change from gamma 2.2 to the slightly more precise 1/0.45 as per BT.709. https://www.itu.int/rec/R-REC-BT.709-5-200204-I/en mentions a value of γ=0.45 for the conceptual non-linear precorrection of video signals. This is approximately the inverse of 2.22, and not 2.20 as the code had been using until now.
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