[gst-devel] How to interprete WARNINGs?

[Fredrik Persson]

When I run my python/gst program, I get this error message in the
console:

** (myprogram.py:29103): WARNING **: biodiv0: size 960000 is not a
multiple of unit size 4142400

("biodiv0" is a home made element.)

1. What does the number "29103" mean? 
2. This error comes as I try to resize a gtk drawing area in which I'm
showing a ximagesink and size 960000 is 1200x800 which is the resolution
that I'm trying to switch to. But what does "4142400" mean?
3. What is "unit size"?

TIA!

/Fredrik Persson