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 Batch Converter Demo: Converting to Webp fails

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AScomp Posted - Jan 03 2021 : 17:17:36

I just tried to convert some images (PNG, JPG, BMP) to webp using the Batch Converter Demo.

Although the demo project does not throw any exceptions, the resulting image files are 0 Bytes in size.

ImageEn version 9.2.6, Delphi XE, WebP Codec Setup installed

Tested with official .EXE demo as well, same issue.

Any ideas?

Kind regards

3   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Jan 04 2021 : 13:56:11
Hi Andreas

WebP support depends on the WIC driver, but the way ImageEn is handling it is incorrect.

We'll have a fix for this in 9.3.0.. You can email me for a pre-release.

Xequte Software
AScomp Posted - Jan 04 2021 : 08:46:53
Hi Nigel,

the Batch Converter Demo uses TIEBitmap, not TImageEnView. For TIEBitmap, I could not find .IO.Aborting.

TIEBitmap.Write returns true, even that the resulting file is 0 Bytes in size. This seems to be a bug and should be fixed, since I have no chance to check if succeeded (other than check file size or try to load image after conversion, which is a bad idea if you have several hundreds or thousands of files in a batch process).

It's a little bit disappointing, that WebP is not supported. I downloaded the Batch Converter Demo prior to my purchase, saw that WebP is supported as destination format and decided to buy. In total, it's a great library and I am happy with it up to now, but these two issues are serious for my application.

Is it planned to support WebP writing shortly?

Kind regards

xequte Posted - Jan 04 2021 : 02:01:00
Hi Andreas

WebP writing is not supported. Is ImageEnView1.IO.Aborting true after the call?

Xequte Software