[M4IF Technotes] Codec testing methodology

[the_ether]

Hi
Is there any standard testing regime for MPEG-4 codec? I am aware of the
video files used for conformance testing but I was wondering whether there
were any other guidelines such as for the intermediary steps such as ME or
comparisons of signal to noise ratios for a given input image and a given
target bit rate?
As far as I know there are only conformance tests and subjective tests of
the quality of the end, decompressed images.
Regards
garham