Re: seeking for help on MNG creation

Sven,

>  - 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.

There's obviously some problem. I'll have to find some time to look into it 
further. Thanks for your observations!

One thing I noticed with respect to the background is that MNGeye keeps 
telling me the BACK chunk has image_id 256 in it, rather than 1, so there's a 
byte-order problem, but I don't know if that's in the libmng writer, the 1.0.5 
libmng reader, the 1.0.7 reader or MNGeye or any combination of them.

Gerard


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