This document contains modified chapters from the original (now outdated) Test Model 5 document that pertain to MPEG-2 Video Main Profile.
The MSSG MPEG-2 video software encoder follows the Test Model recipe with only minor differences such as quantization scale factor smoothing. The Test Model also does not resolve all ambiguities such as linear/non-linear quantization scale selection (q_scale_type), and field/frame dct organization (dct_type).