_Exception (Exception: Codec failed to produce an image, possibly due to invalid image data.)

[stephane-archer]

DaVinci-Resolve-Logo.tif.zip

try to decode this tiff
_Exception (Exception: Codec failed to produce an image, possibly due to invalid image data.)

[brendan-duncan]

I'll take a look at it this evening (my time). The exception isn't from this library though.
My guess (without looking at the image yet) is that it's another 16-bit image, and you're trying to display it with flutter or something like that, which doesn't do 16-bit images. Try converting it to 8-bit first.

[stephane-archer]

@brendan-duncan sorry I thought it was from this library when decoding the image.
With the “async gap” I wasn't able to see who through it.

It's another strange image file, I’m not sure of the bit-depth.

Photographers have quite complex needs regarding image format

[brendan-duncan]

Taking a quick look while my work code is compiling, the TIFF is 8-bit CMYK. That should be fine. But it's definitely not decoding correctly. Maybe some weird TIFF configuration not being handled correctly. I also see the conversion from CMYK to RGB is allocating an array each call, which will accumulate garbage collection, so I'll clean that up too while I'm in there looking into things.

[brendan-duncan]

Part of the problem (or the main problem) is the image is a 5-channel CMYK. I'm not entirely sure what the 5th channel is, I assume alpha. The library just isn't doing a good job handling that scenario. I'll have to fix it up.

[brendan-duncan]

Should be fixed in git now, I have it handle 5-channel CMYK-alpha now and the image decoded for me.

[stephane-archer]

@brendan-duncan you are the best! 💪