topic Re: JPEG2000: RasterFormatException 'data array too small' in Alfresco Archive

JPEG2000: RasterFormatException 'data array too small'

nadaoneal — Mon, 16 Mar 2009 15:44:52 GMT

Hi, I'm getting "The preview cannot be loaded form the server." (sic) when I try to view the large preview image of a PNM/JPEG2000 file in Share. The small preview in the list file shows up fine. Large previews of other objects, from PNGs to PDFs, are working fine. I'm running Labs version D on RedH

Re: JPEG2000: RasterFormatException 'data array too small'

mikeh — Mon, 16 Mar 2009 19:39:29 GMT

I suspect it's either a missing mimetype map, or ImageMagick choking on the file format perhaps..?

If it's not personal or commercially sensitive, could you upload the image somewhere please? PM me the URL if you don't want it made public.

Thanks,
Mike

Re: JPEG2000: RasterFormatException 'data array too small'

nadaoneal — Wed, 18 Mar 2009 13:55:59 GMT

I'm just using the default pnms that come with jasper - the cats.pnm and water.pnm (linking to copies for your convenience).

I think it's not ImageMagick choking on the file format since the small list-view previews come up just fine. It's just the large previews that are having problems.

I'm currently getting no error-log errors whatsoever on uploading or attempting to view JPEG 2000s, though I'm still getting the "cannot load preview form server" error in Share. I'm going to look through the log4j.properties to see if I can crank up the logging on something. If you happen to know what I should turn up to see more errors, please let me know.

Re: JPEG2000: RasterFormatException 'data array too small'

mikeh — Wed, 18 Mar 2009 14:40:43 GMT

Ok, I think the problem is that we're assuming Flex could display any image/* mimetype. Obviously this assumption is incorrect, so we would have to add a content transformation step to convert the pnm into png or jpeg in order for it to work in the previewer.

If this is important to you, please raise it as a bug in JIRA and we'll see if we can get it onto the development timeline.

Thanks,
Mike

Re: JPEG2000: RasterFormatException 'data array too small'

nadaoneal — Tue, 24 Mar 2009 14:31:18 GMT

Thanks, I've made an issue in Jira.

Re: JPEG2000: RasterFormatException 'data array too small'

mikeh — Tue, 24 Mar 2009 15:08:48 GMT

Thanks
Mike