[mytbyte]

@huhn: I think I understand now what you want to say but default values are for people who don't know their gamma, white and black levels and that (must be) ok. But HDR levels are absolute and those values won't be converted to absolute brightness levels unless you specify actual SDR gamma you calibrated your tv to if you have the possibility to do that. I know, you'll say that top brightness differs from Tv to Tv (even HDR models) anyway so why stick to absolute levels but for my way of thinking, HDR-SDR conversion is also designed to simulate, on an SDR TV with high brightness, as close as possible how it would look on a HDR display, not just losely convert to SDR, if you calibrated your SDR tv and know it's characteristics. Of course, it means multiple processing, quality depends on TV's gamma precission and lut bitdepth and thus banding is a risk.

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