Under Windows with HDR mode on, HDR videos streamed from Netflix or Prime night attempt re-enable HDR mode and freeze. This isn’t an issue unless the content uses an extremely wide gamut. Under macOS, HDR videos streamed from Netflix or Prime will be squeezed into the P3 color profile. Neither operating system currently support streaming HDR content from popular video sources. Currently, Windows can’t automatically enable HDR mode solely when videos play. This mode is only suitable for HDR video content. If you enable ‘HDR mode’ the Windows desktop environment will appear washed out. Without HDR mode enabled, the video content will appear burnt out and the colors will be oversaturated. Under Windows, users must enable ‘HDR mode’ in the control panel in order to display the content correctly. Any HDR videos using a wider gamut than P3 will have their color space squeezed down. Macs ship with screens supporting the P3 color profile. HDR videos will automatically display the content correctly. Under macOS High Sierra and above, no special settings need to be applied. AMD supports 10 bit on all Radeon Polaris and Vega cards. However, Nvidia only outputs 8 bit video signals on GeForce cards. Windows does support HEVC decoding on GPU for Nvidia and AMD cards. Macs with Skylake processors are able to play 4K videos encoded with the Rec 709 color profile, but are not capable of smooth playback of videos using the HDR standard Rec 2020 color profile.ĭecoding on GPU is not currently fully supported on any Mac, but the graphics card does help with scaling. This post is to inform users about HDR 4K video support using HEVC decoding in macOS.Ĭurrently macOS supports software decoding on Macs with 6th gen Skylake processors, and hardware decoding on Macs with 7th gen Kabylake processors and above.
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