imagepipe: Don't know how to decode image

[zucchiniEvader]

I want to convert ARW files to JPG format, and I used the command raw-to-img -o ./jpeg ./_DSC6738.ARW. However, I encountered the following issue:

Decoding "./_DSC6738.ARW"
Unable to decode "./_DSC6738.ARW": "imagepipe: Don't know how to decode image"
Found no files to process in "./_DSC6738.ARW"

What could be the problem?

[jzbor]

I think there are three main issues here:

1. If you only convert one image raw-to-img expects a filename (not directory) as -o parameter. It might work with ./jpeg, but definitely not the way you would expect it to.
2. Found no files to process in "./_DSC6738.ARW" is clearly wrong, as it has found files, but wasn't able to convert them. This bug should fixed in b76c180, but it only regards the message.
3. As for your actual problem ("imagepipe: Don't know how to decode image") I am afraid I cannot help you without a sample file. I have tried converting an .ARW file without issue. Maybe your file is somehow corrupted?

[zucchiniEvader]

I've uploaded a sample file on Google Drive Could you please help me test it?

Also, I'm using an M1 MacBook, and I'm not sure if that's relevant.

[jzbor]

Hello, I can reproduce your issue. Sadly I think there is nothing I can do, except reporting the issue upstream. I will give you an update once I have opened a ticket there.

One other question just out of curiosity: Is this the only file you cannot convert or do you have the same issue with all your files?

EDIT: Reported the issue upstream

[zucchiniEvader]

I've tested a folder of files, roughly around 100 in total, and all of them failed to convert. These files were taken via a Sony A6400.

[zucchiniEvader]

I tried another file, which was taken with a Sony A7M3, and it converted successfully.

[jzbor]

So according to the libraries developer some camera models are not supported yet in imagepipe. It seems like support may be added in the future though. See pedrocr/imagepipe#18.

I am sorry, but I don't think there is anything I can do in this case. I will keep this issue open though and report if there is any progress...

[zucchiniEvader]

Thank you very much for your reply. So, I won't rush to use this component for now since I only have an A6400.