commit 07055b5e25a28e145e68ce6ccb71d9d6ee1d3481
author Matthew Leibowitz <mattleibow@live.com> Sat Oct 10 15:50:13 2020 +0200
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Mon Oct 12 13:50:27 2020 +0000
tree 37fc04c0599e961755b73fba9527854d8819e0a9
parent 91c752a0146e9182766ae04ca2bf4b19502defcc

Parse out the orientation in the SubIFD of EXIF

Orientation information is sometimes stored in
the SubIFD section of EXIF, so read that. This is
just a matter of searching for the SubIFD offset
value in the EXIF tags and then parsing the
values from there onwards. The data format is
the same as the EXIF data.

The images are not under any copyright as I made
them up locally specifically for these tests.

Bug: skia:10799

Change-Id: I5384ffc1c4a9a0c7d3fc8510ef4da2f278cb8b97
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/323217
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>