[poppler] Non-initialized variable and question about streams

[Stéphane Magnenat]

Hello,

I first filled a bug using those remarks (7903) but I have been suggested to 
post on the ml instead, so here it is:

I would like to make an helper application for indexing pdf articles into a 
bibliographic database. As a first step, I've made a pdf structure dumper 
using popple. In the course of writing it, I've run into some problems. 

The file I'm refering to is attached to the bug:
https://bugs.freedesktop.org/show_bug.cgi?id=7903

* Non-initialized variable

A stream of type strFile, returned by basetream() from a newly created PDFDoc 
object, does return a non-NULL dict through getDict(), but 
this dict's length field is a non-initialized variable. 
Valgrind produced a warning. The can be tested by commenting line 43 and 44 of 
pdfds.cpp

* Strange addFilters behaviour

Every time I try to get an uncompress substream of a Flate encoded stream 
(lines 58 to 75 of pdfds.cpp), I get "Error (some int here): Unknown 
compression method in flate stream". Yet the dict does have the correct 
parameters and afaik is passed correctly to addFilters.
I'm using libpoppler version 0.5.3-0ubuntu1 on Ubuntu Dapper. I've been asked 
wether I'm using a zlib-enabled poppler. ldd /usr/lib/libpoppler.so does say 
libz is linked in, but I'm not sure that implies a zlib-enabled poppler. Is 
there a way to check ?

Thanks, have a nice day,

Steph
	
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