tree a22b0d048fd3987cb5665f85ff3fb570e53dc784
parent 38d73653bfb427458d55001ec218e6589d0e0abb
author Hui Su <huisu@google.com> 1575499710 -0800
committer Hui Su <huisu@google.com> 1575673016 +0000

Add function to fetch chroma block size

This helps reduce code and logic complexity.

Change-Id: I2456e464025e18ccd57a018a1d5f424e7e08ff0b