Unable to write category data into webp format file

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ddvc
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Joined: Wed Aug 18, 2010 5:59 am

Unable to write category data into webp format file

Post by ddvc »

After setting a category in a webp format file and copying it to another directory using windows explorer, the category data is gone.
The same operation jpg is no problem.
XnViewMP version is 1.5.0.
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xnview
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Re: Unable to write category data into webp format file

Post by xnview »

and no problem with 1.4.5?
Pierre.
ddvc
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Re: Unable to write category data into webp format file

Post by ddvc »

xnview wrote: Tue Jul 11, 2023 7:37 am and no problem with 1.4.5?
Version 1.4.5 also has this problem
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xnview
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Re: Unable to write category data into webp format file

Post by xnview »

do you write category in embedded metadata?
Pierre.
ddvc
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Re: Unable to write category data into webp format file

Post by ddvc »

xnview wrote: Wed Jul 12, 2023 8:13 am do you write category in embedded metadata?
What is embedded metadata?
Is that mean .xmp file ?
I did't create .xmp files to save metadata.
JPG can write metadata into the JPG file.
I think writing metadata to the file is very cool.
Is that possible to write metadata into WEBP files?
Last edited by ddvc on Wed Jul 12, 2023 8:32 am, edited 1 time in total.
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xnview
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Re: Unable to write category data into webp format file

Post by xnview »

ddvc wrote: Wed Jul 12, 2023 8:29 am
xnview wrote: Wed Jul 12, 2023 8:13 am do you write category in embedded metadata?
No, I did not create .xmp files to save metadata.
JPG can write metadata into the JPG file.
What do you have in Settings>Metadata
Is that possible to write metadata into WEBP files?
yes
Pierre.
ddvc
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Re: Unable to write category data into webp format file

Post by ddvc »

xnview wrote: Wed Jul 12, 2023 8:31 am
ddvc wrote: Wed Jul 12, 2023 8:29 am
xnview wrote: Wed Jul 12, 2023 8:13 am do you write category in embedded metadata?
No, I did not create .xmp files to save metadata.
JPG can write metadata into the JPG file.
What do you have in Settings>Metadata
Is that possible to write metadata into WEBP files?
yes
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xnview
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Re: Unable to write category data into webp format file

Post by xnview »

Sorry i'm wrong. WebP support XMP categories when you convert from jpeg/PNG for example, but you can't directly change XMP categories into WebP files. Only support sidecar...
Pierre.
ddvc
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Re: Unable to write category data into webp format file

Post by ddvc »

xnview wrote: Wed Jul 12, 2023 11:17 am Sorry i'm wrong. WebP support XMP categories when you convert from jpeg/PNG for example, but you can't directly change XMP categories into WebP files. Only support sidecar...
Thank you for your answer, I hope support writing category to webp files ASAP.
rafrafraf
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Re: Unable to write category data into webp format file

Post by rafrafraf »

Hello, I use webp a lot, and need to use categories metadata. Is there possibly a roadmap to add `write to file` metadata/xmp for WEBP? This would be a boon. Thank you