Most EXIF tags are not found for iPhone HEIC photos

[nicksorin]

Sample photo taken with iPhone 8: https://drive.google.com/open?id=1DMGFFP6cZsI0aMOtcMct8vlwSTeMZBpk

Using Windows 10, check photo Properties > Details:

• Origin - Date taken: 05/12/2019 17:01
• Image - Width: 4032 pixels
• Image - Height: 3024 pixels
• Camera - Camera maker: Apple
• Camera - Camera model: iPhone 8
• Camera - Exposure time: 1/14 sec
• Camera - ISO speed: ISO-100
• Camera - Focal length: 4 mm
• Advanced photo - Lens maker: Apple
• Advanced photo - Lens model: iPhone 8 back camera
• Advanced photo - EXIF version: 0231
• GPS data

Using metadata-extractor, print all tags from all directories:

• Major Brand : heic
• Minor Version : 0
• Compatible Brands : mif1 miaf MiHB heic
• Width : 512 pixels
• Height : 512 pixels
• Rotation : 0 degrees
• Bits Per Channel : 8 8 8
• Profile Size : 548
• CMM Type : appl
• Version : 4.0.0
• Class : Display Device
• Color space : RGB
• Profile Connection Space : XYZ
• Profile Date/Time : 2017:07:07 13:22:32
• Signature : acsp
• Primary Platform : Apple Computer, Inc.
• Device manufacturer : APPL
• XYZ values : 0.964 1 0.825
• Tag Count : 10
• Profile Description : Display P3
• Copyright : Copyright Apple Inc., 2017
• Media White Point : (0.9505, 1, 1.0891)
• Red Colorant : (0.5151, 0.2412, 65536)
• Green Colorant : (0.292, 0.6922, 0.0419)
• Blue Colorant : (0.1571, 0.0666, 0.7841)
• Red TRC : para (0x70617261): 32 bytes
• Chromatic Adaptation : sf32 (0x73663332): 44 bytes
• Blue TRC : para (0x70617261): 32 bytes
• Green TRC : para (0x70617261): 32 bytes
• Detected File Type Name : HEIF
• Detected File Type Long Name : High Efficiency Image File Format
• Detected MIME Type : image/heif
• Expected File Name Extension : heif
• File Name : IMG_9175.HEIC
• File Size : 2087335 bytes
• File Modified Date : Sun Apr 05 21:24:24 +02:00 2020

Would be highly appreciated if you could improve HEIC support.

Note: if needed, you can add this photo to the public library

[drewnoakes]

@nicksorin in the last few days we've improved HEIC support on master which has not yet been released via Maven. Would you be able to test using the latest code and let us know if you see the data you expect?

Note: if needed, you can add this photo to the public library

Thanks very much!

[drewnoakes]

I ran this on master and see that we don't pull out a bunch of data from the file. The .NET implementation does, so the action item here is to port logic from .NET to Java to achieve parity across the implementations.

[nicksorin]

Thanks, @drewnoakes for your quick feedback. Keep my fingers crossed for you to find the time to implement this improvement!

[drewnoakes]

I don't know when I'll be able to get to it. In the meantime someone else is welcome to step in with a PR. It should be a relatively straightforward task, and a nice introduction to the library.

[normana10]

I had started work on this about a month ago and got distracted, I've just put in a PR #478

[drewnoakes]

Fixed by @normana10 in #478.