Re: seeking for help on MNG creation

Hi,

I've done some more experiments. What I figured out is:

 - The unoptimized animation works well with libmng-1.0.5 as installed
   in debian sid. After updating to the CVS version of libmng, the
   background image is not any longer shown. The animation is played
   on a black background instead.

 - The optimized animation that uses a PAST chunk crashes both
   libmng-1.0.5 as well as the unmodified CVS version. After enlarging
   the buffers as described in my last mail, the optimized animation
   is displayed fine except that the background image is missing.

There might of course be a problem with the MNG file I created, but I
have the impression that (a) background handling broke between
libmng-1.0.5 and 1.0.6 and (b) there's a bug in the display routines
that are used to process a PAST chunk.

The unoptimized and optimized MNG files can be found at

  http://sven.gimp.org/heart.mng
  http://sven.gimp.org/heart-opt.mng

Please let me know if you need any further info or other examples to
track down this problem.


Sven

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