I converted my 4K home videos to H.264 using FFmpeg and default options for libx264 + AAC audio. iTunes doesn't accept converted videos for Apple TV 4K. No problem with converted 1080p videos.
Are there any known issues with Apple TV 4K, or I should use certain options for 4K H.264, or I should create HEVC video?
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Last edited by Aleksid1; 23rd Jan 2019 at 09:32.
Thanks for you reply.
Apple declares: "H.264/HEVC SDR video up to 2160p, 60 fps, Main/Main 10 profile"
So I assume that it should support 4K in H.264.
Official spec is even more confusing:
Wiki says 5-th generation only: