# Quicktime Dolby Vision Metadata from iphone

**URL:** <https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332>\
**Category:** Between Renders\
**Created:** [February 6, 2021, 12:52pm UTC](https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332 "2021-02-06T12:52:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [February 6, 2021, 12:52pm UTC](https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332/1 "2021-02-06T12:52:35Z")

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So I got a iPhone 12 and I am checking out its HDR mode, I am really interested in how Apple is shoving the ‘Dynamic Dolby Vision Metadata’ into their H265 10bit .mov files .

It seems like they have the same amount of Metadata tracks as the iPhone 11, but I cant find anyhting that can read the contents (ffprobe, mediainfo, exiftool) so I am not sure why the non-HDR iPhone would have the same metadata tracks but I mostly wonder what is in there.

-Dolby metadata changing inside a single clip would be weird, it would/should be static for that shot, but maybe its actually per frame and its just trying to balance out the auto-exposure function to some degree, no idea…

- the SDR conversion on a macbook doesnt look like the same thing done with Dolby Vision in Flame  
(left Original iPhone HDR right exported after SDR Trimmpass from Dolby 4.0)

 ![146726237_10157648103976813_2740122551433945961_o](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/2/25ad61c1e1478d3822436f258e52b2e92c2643ca.jpeg)

you can download the original file here if you want to have a play.  
[https://fromsmash.com/Y01J-an1G2-dt](https://fromsmash.com/Y01J-an1G2-dt)

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**Author:** ![greg](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/greg/32/1185_2.png) [@greg](https://forum.logik.tv/u/greg)\
**Post date:** [February 6, 2021, 1:51pm UTC](https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332/2 "2021-02-06T13:51:16Z")

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Maybe you’ll have better luck if you shoot with Filmic?

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [February 6, 2021, 3:19pm UTC](https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332/3 "2021-02-06T15:19:43Z")

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Yea only had a few minutes with (my wifes) the phone today, I will install filmic later and see if it makes a difference I would assume the metadata is encoded in the same way however… hmm I even contacted dolby about more information on what this iPhone Dolby actually is but so far no response on that front.

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**Author:** ![finnjaeger](https://avatars.discourse-cdn.com/v4/letter/f/e99b99/32.png) [@finnjaeger](https://forum.logik.tv/u/finnjaeger)\
**Post date:** [April 20, 2021, 12:48pm UTC](https://forum.logik.tv/t/quicktime-dolby-vision-metadata-from-iphone/2332/4 "2021-04-20T12:48:38Z")

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FYI

You can now “create” those odd iPhone dolby vision HLG files using the latest apple compressor .

It seems to analyze the source as I tried with a really bright PQ hdr master and it turned darker visually on a sdr display so its doing something.

It however doesnt look like its doing anything dynamic…