[PD] Gem compilation for abling [pix_film] to open video file (read homer.avi)

[tommaso bianco]

Hi all,
I'm simply trying to get a simple video (homer.avi) working with 
[pix_film], but there is a problem:

------------------
[pix_filmNEW]: opening homer.avi with format 1908
...
error: [pix_filmNEW]: unable to open file: homer.avi
------------------

The Gem library included in CCRMA Pd version 0.39.3-extended-rc5 works 
in loading the file, but I can not use it because it does not support 
the GEM_SINGLE_CONTEXT variable set to 1 needed for the creation os the 
gemwin with the fglrx driver (topic discussed recently in "[PD] gem 
crash using fglrx driver in ubuntu").

I suppose I have to bind the compilation with some codec library in my 
system, but which and how?
Thanks for helping me!

Tommaso