[poppler] Loading documents from GInputStream?

[Albert Astals Cid]

A Dilluns 12 Maig 2008, Tommi Komulainen va escriure:
> Hi,
>
> I'm investigating the possibility of loading poppler documents with
> GInputStream and I'm wondering if there's already someone working on
> it or have some ideas how to proceed? Quickly looking at Stream.h it
> would appear to me that poppler isn't prepared to load files from
> actual no seeking streams but rather expects to have all content
> available when starting. Please correct me if I'm wrong.
>
> I'm coming to this from browser perspective. The idea would be to
> begin displaying the PDF content as soon as possible, without having
> to wait for the whole document to download before displaying the title
> page.
>
> Another option I'm considering would be to direct poppler into loading
> a temporary, incomplete, file and knowing the expected size of the
> file deal with temporary EOF intelligently.
>
> Thoughts?

The XRef of the file is at the end so you need all the file to be able to 
process it.

Then there are that "web optimized" PDF files that have multiple XRef that 
form independent parts inside the PDF file so you can load a part of it as 
soon as you find the first XRef, poppler does not any sort of intelligent 
algorithm to work with partially downloaded streams.

I think it would be a nice addition to have just not sure what kind of api 
we'd need.

Ideas?

As far as i know nobody is working on that.

Albert


>
>
> - Tommi
> _______________________________________________
> poppler mailing list
> poppler at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/poppler