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4K iTunes Movies
- Thread starter ZeRoLiMiT
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I am not sure anybody has really tried to download them, but based on calculation, they should be around 1/2 the size of their bluray siblings.
Apple streams at max 30Mbps so a 2 hour feature calculates as 26GB:
https://forums.macrumors.com/threads/downloading-4k-itunes-movies-usb.2166367/#post-27024326
Rumour has it that iTunes 4k copy protection has been broken: https://appleinsider.com/articles/1...-suggests-itunes-4k-movie-drm-has-been-broken
If it is a true iTunes 4k rip, films from other services may follow such as Vudu and Google Movies.
Makes me wonder, why did they lose Dolby Vision along the way?
PS Netflix things are already around.
There is no way to play Dolby Vision rips using software even from a 4k disc without re-encoding the audio as far as I know.
Why? iTunes/Netflix DV is directly playable on appleTV or Sony Bravia.
Its not the same as DV from uhd disc.
Do you have a source to explain the difference between DV encoding for UHD and DV encoding for iTunes, Vudu, or Netflix? I always thought both video sources contained the same DV metadata so video files didn't have to be encoded differently for streaming services.
An extremely popular media player is the nVidia Shield and it does not support DV playback from any file.
Best source is the Dolby document Dolby VisionProfiles and levels
Long story short - UHD BD uses a very special DV encoding - profile 7. The only reason for it's existence is backward compatibility. It contains actually 2 video streams: one 2160p HDR10 stream that plays back on any UHD player. And then one 1080p track, encoded also in HDR10, that is used to "enhance" the base HDR10 image into 12-bit Dolby Vision image, dynamically:
(it is worth mentioning that to have 2 video streams in one file is in itself very unusual)
The other, used in streaming, is a profile 5 encoding. It contains a single (usually 2160p, but is really resolution-agnostic) video track, encoded with special Dolby Vision flavor of HEVC 10-bit encoder - dvhe:
The codec name dvhe.05.09 is actually nicely explained in Dolby's reference document, linked above.
My pleasure!
PS If you have the shield, definitely try out these MP4 and TS files if you can play them back:
https://mrmc.tv/forum/viewtopic.php?t=4112&start=20#p17694
As for appleTV, iTunes will ingest them MP4-s happily, but they do not appear in tvOS's Computers app. You need to resort to Infuse or Plex.
PS If you have the shield, definitely try out these MP4 and TS files if you can play them back:
https://mrmc.tv/forum/viewtopic.php?t=4112&start=20#p17694
As for appleTV, iTunes will ingest them MP4-s happily, but they do not appear in tvOS's Computers app. You need to resort to Infuse or Plex.
Unfortunately, I don't have a shield as I use my htpc to play audio and video files. I use an apple tv 4k for iTunes and Netflix, and the lg apps for Google movies and Vudu.