Abstract not available in document
JVET-F0076 Request for 4:4:4 support in the JEM software [M. Meyer, A. M. Tourapis, D. Singer (Apple)] [late]
It has been observed that currently the JEM reference software is only able to handle 4:2:0 material. In particular, a variety of tools have been introduced over the original HM codebase, that unfortunately cannot properly handle 4:4:4 video material. This contribution requests that any issues impacting 4:4:4 encoding in the JEM are identified and resolved, and that any future development properly accounts for 4:4:4 material from this point onward.
4:4:4 is probably an important application area of future standardization, and we might even consider to include 4:4:4 material in a CfP.
In the current exploration for which JEM is designed, 4:4:4 is not in the central focus (and not in included in common test conditions). It would nevertheless be beneficial to have an idea about the level of 4:4:4 compliance of certain JEM tools. For example, some tools may have implemented the colour subsampling hard coded.
It was agreed to establish an AHG to study the difficulty of enabling 4:4:4 capability in the JEM (A. Tourapis, X. Li, coordinating)