[XviD-devel] Internal benchmark mode, test pattern generator

[Christoph Lampert]

Hi,

another thing, which I always had plans for, but never found the impulse 
to do. Maybe somebody else jumps in: internal/official benchmarking

At the moment, everybody uses his own way of benchmarking and debugging, 
or doesn't at all. There should be standard way of doing this, and that 
could be _internal_ to the codec, e.g. by an internal test pattern 
generator. 

Of course, this is not a benchmark for "what are the best parameters for 
DVDs", but at least for general speed and PSNR stuff. Create simple 
geometrical and/or textured patterns, moving in a not-too-linear way and 
measure encoding speed and PSNR. By this, there would finally be a way to 
compare new versions again old ones, in particular to find newly 
introduced bugs before a version makes it into the public. Comparing XviD 
on different hardware plattforms and with different compilers would be 
easier as well. 
If the pattern is somewhat resolution independent, we could also see how 
well XviD scales with resolution. 

I'm sure there is GPLed test pattern code to be reused somewhere 
out there in the net. 

chl