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@theothernt
Last active July 24, 2024 19:36
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A list of the feeds Apple uses for its video screensavers
tvOS 10: 1080p + H.264
http://a1.phobos.apple.com/us/r1000/000/Features/atv/AutumnResources/videos/entries.json
tvOS 11: 1080p/4K + SDR/HDR + HEVC
https://sylvan.apple.com/Aerials/2x/entries.json
https://t27q97zg19.execute-api.us-east-1.amazonaws.com/prod/aerialAltJSON/4kEntites.json
tvOS 12: 4K + SDR/HDR + HEVC, 1080p + H.264, localised descriptions
https://sylvan.apple.com/Aerials/resources.tar
tvOS 13: 4K + SDR/HDR + HEVC, 1080p + H.264, localised descriptions
https://sylvan.apple.com/Aerials/resources-13.tar
tvOS 15: 4K + SDR/HDR + HEVC, 1080p + H.264, localised descriptions
https://sylvan.apple.com/Aerials/resources-15.tar
tvOS 16: 4K + SDR/HDR + HEVC, 1080p + H.264, localised descriptions
https://sylvan.apple.com/Aerials/resources-16.tar
macOS 14: 4K 120FPS + 240FPS, localised descriptions
https://sylvan.apple.com/itunes-assets/Aerials126/v4/82/2e/34/822e344c-f5d2-878c-3d56-508d5b09ed61/resources-14-0.tar
@kubedzero
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kubedzero commented Oct 3, 2023

Thanks for the update, I didn't know the L5.1 vs L6 etc. made a difference in decoding. Keep us updated if new TAR files are released with additional videos!

Edit: After reading a bit about the different levels, I see the following in terms of Nvidia cards from https://en.wikipedia.org/wiki/Nvidia_NVDEC

  • 900 series cards support hardware decoding for H.264 but not High 10
  • 1000 series cards add support for HEVC/H.265 4:2:0 at 8/10/12 bit
  • 2000 series cards add support for 4:4:4 HEVC at 8/10/12 bit
  • 3000 series cards add support for AV1 4:2:0 8/10 bit, not 12 bit
  • 4000 series cards add the missing 12 bit AV1

Meanwhile, Intel CPUs based on https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video

  • Skylake/6th Gen supports L5.1 AVC/H.264 and HEVC/H.265
  • Kaby/Coffee/Comet Lake 7th Gen, 8th Gen, 10th Gen supports HEVC 10 bit
  • Rocket/Alder/Raptor Lake 11th Gen, 12th Gen, 13th Gen supports HEVC 4:2:0 12 bit, and decode-only AV1 8 bit and 10 bit
  • Meteor Lake 14th Gen supports AV1 12 bit

So for me on a 900-series Nvidia card and a Skylake 6th Gen Intel CPU, the only hardware decoding support I have is HEVC 8 bit video via the Intel CPU, and these are 10 bit Aerials videos. 💀

@TechClusterHQ
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https://sylvan.apple.com/Aerials/resources-17.tar doesn't seem to exist. Do you know where the new tvOS 17 aerials are stored?

@HappyMac3920
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@HappyMac3920
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HappyMac3920 commented Jun 20, 2024

macOS 15 has changes to the screensaver manifest, this seems to be the newer manifest:
https://configuration.apple.com/configurations/internetservices/aerials/resources-config-14-1.plist
The binary has this file located alongside the plist: https://sylvan.apple.com/itunes-assets/Aerials126/v4/82/2e/34/822e344c-f5d2-878c-3d56-508d5b09ed61/resources-14-1-0.tar
I did not see any changes on tvOS 18.

@larryqiann
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larryqiann commented Jul 24, 2024

Does anyone know what settings or program were used to encode the videos here? I have tried for a long time to encode a video that is compatible with Apple's Sonoma background wallpaper video thing, but haven't been successful. So far, the default test footage h265 from an iPhone comes the closest to playing (after exiting screensaver, it flickers back and forth a few frames and only sometimes results in black screen), but anything I made in ffmpeg will play correctly once and then display a black screen once the screensaver exits. If I replace the file with another one of Apple's own, it will work correctly, so clearly there is something wrong with my videos.

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