WebP-Support / webpmux

[crueger]

It would be a good feature if ExifTool could directly write XMP-Data to .webp files. The definition of the container format and tools are now in the repositories https://developers.google.com/speed/webp/download.

For example, by now you have to do this to copy metadata into a new created .webp-file:

exiftool -Tagsfromfile picture1.jpg metadata1.xmp
webpmux -set xmp metadata1.xmp picture1.webp -o picture1container.webp

Thanks

[Phil Harvey]

Adding write support is often a lot of work, but I'll look into this.

Thanks for the suggestion.

- Phil

[rodertroy]

This thread was 8 years ago. Any plans for supporting write support for webp images? If not is there some hack that can be used to add write support, or another program you'd recommend that provides write support?

Issue addressed here as well: https://exiftool.org/forum/index.php?topic=5373.0

[Phil Harvey]

This is currently on my to-do list, but it has fallen to item number 193.   So it isn't likely that ExifTool will have this ability soon.

I'm not an expert in other software, so I can't help there.

- Phil

[rodertroy]

FYI Exiv2 works with webp.

[Phil Harvey]

Do you have any WebP samples containing EXIF and XMP metadata?

- Phil

[rodertroy]

Yes, with Exiv2 I'm able to write Exif data to many webp images. I haven't tried writing data to xmp.

Using the following bash script to add data to the user comment tag:

Code Select Expand

#!/bin/bash

echo "Please type title and press enter"
read conch

if [ -z "$conch" ]; then
printf "no caption was selected, aborting!\n"
exit 1
fi
printf "conch is $conch\n"


exiv2 -M'set Exif.Photo.UserComment charset=Ascii '$conch'' *.webp

done


[Phil Harvey]

That would require that I install exiv2.

- Phil

[Phil Harvey]

I'm working on adding WebP write support to ExifTool 12.46.  See this post for more information.

- Phil