Does NotchLC support HDR?

NotchLC
1

We’re asked to deliver a project that’s in HLG & Rec2020, in NotchLC.
With Notch being a 10bit codec and HLG being a fairly “mild”, static HDR, there’s no limitation from rendering such HDR video in Notch — my question is more about metadata to process the files properly in Premiere, AE, and Notch Playback.

  • I can’t find any reference ever anywhere about NotchLC and HDR.

  • While After Effects allows overriding Notch clips’ color profile, Premiere does not.

  • Tests I ran today to transcode from an HLG HDR ProRes to Notch, in Premiere/Media Encoder, appear to suggest that it thinks it has to be a Rec709 destination and auto-converts it to SDR. It definitely doesn’t tag those Notch MOVs as HLG the way it does ProRes.

2

Anybody? Bumping this up.

3

NotchLC support High Bit Depth content, but not HDR content - content with a wider colour gamut will be clipped outside the 0-1 range. You could try to squeeze the colour range into the 0-1 range and then separate it again in post, but you’ll lose a lot of colour depth trying to do so.

– Ryan