Fix: Ensure GIF and TIFF are treated as images

[f-pereira]

Resolved / Related Issues

• Were these changes approved in an issue or discussion with the project maintainers? In order to prevent extra work, feature requests and changes to the codebase must be approved before the pull request will be reviewed. This prevents extra work for the contributors and maintainers.
  Closes Bug: GIF and TIFF aren't treated as images #12133

Validation
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• Are there any other steps that were used to validate these changes?
  1. Open app
  2. Select a .gif or .tiff file
  3. Should have image options (rotate left, rotate right, etc...)

Screenshots (optional)

[ferrariofilippo]

There's a bug when rotating GIFs, but I think it's a different issue

[f-pereira]

Oh I see, It seems that only the first frame is rotated

[hishitetsu]

Thank you for your PR! This page will help you to rotate all frames.
https://learn.microsoft.com/en-us/uwp/api/windows.graphics.imaging.bitmapencoder?view=winrt-22621

If you want to encode an additional frame, call GoToNextFrameAsync.

[f-pereira]

@hishitetsu Thank you for the documentation! I tried to use it and I found a problem that I am Looking for solution: the first frame rotates well, but if the next frame have a different width/height, it rotates well but It is misplaced (e.g It is placed on top right corner instead of center)

[hishitetsu]

• Will there be any problem if all frames had the same width and height?
• Will rotating four times in a row or rotating left and then right restore all frames to their original state even if there are frames of different widths and heights?

If no to the former and yes to the latter, I think that is still fine.

[f-pereira]

@hishitetsu Done!
I tested with a gif where all the frames are equal in size and it worked well.
I also tested with other image formats and it is working

[ferrariofilippo]

@hishitetsu Done! I tested with a gif where all the frames are equal in size and it worked well. I also tested with other image formats and it is working

I'm getting a frame wrong (but if I rotate the gif 4 times everything works). I used this to test

[f-pereira]

I noticed that it happens when the frames are not equal in size (I checked your gif, the frames size are different)
To confirm this I used this gif

[hishitetsu]

I noticed that File Explorer does not have the feature to rotate GIFs maybe because the problem above.
This problem should be listed as a separate issue, but it doesn't look like it would be easy to fix and there are GIFs that can be rotated correctly, so I am fine with this.

[hishitetsu]

LGTM

[ferrariofilippo]

LGTM and works for me!

[yaira2]

Thank you