[bug] Pixel Aspect Ratio is not being saved on GIF files

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sd_snatcher
Posts: 26
Joined: Sat Sep 10, 2016 11:29 pm

[bug] Pixel Aspect Ratio is not being saved on GIF files

Post by sd_snatcher » Sun Sep 23, 2018 1:32 pm

The Pixel Aspect Ratio metadata is not being saved when images are converted to GIF.

Tested on XnConvert v1.77 on Mac OS-X v10.13.6.

Steps to reproduce

1) Add the two images attached here (Lenna2x1.png and ShouldBeSquare1x2.png) to the Input tab
2) Clear any actions present on the Action tab
3) On the output tab, check the "Preserve Metadata" checkbox
4) On the output tab, select the GIF file format
5) Proceed the conversion

The converted files will be missing the Pixel Aspect Ratio and will look distorted even on viewers that properly support Pixel Aspect Ratio, like XnViewMP.

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Attachments
ShouldBeSquare1x2.png
ShouldBeSquare1x2.png (2.99 KiB) Viewed 152 times
Lenna2x1.png
Lenna2x1.png (227.84 KiB) Viewed 152 times

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xnview
Author of XnView
Posts: 30270
Joined: Mon Oct 13, 2003 7:31 am
Location: France
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Re: [bug] Pixel Aspect Ratio is not being saved on GIF files

Post by xnview » Mon Sep 24, 2018 11:23 am

yes, currently this flag is not saved
Pierre.

sd_snatcher
Posts: 26
Joined: Sat Sep 10, 2016 11:29 pm

Re: [bug] Pixel Aspect Ratio is not being saved on GIF files

Post by sd_snatcher » Tue Sep 25, 2018 1:35 am

Can it be implemented?

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