tree 9d4a17c80d5f834d4cc377cca872be1c81943063
parent be4ee75fd762d361d0679cc892e4c74af8140093
author Wan-Teh Chang <wtc@google.com> 1608599932 -0800
committer Wan-Teh Chang <wtc@google.com> 1608662992 +0000

Use Round2() in filter_intra_predictor functions

Document why it is safe to use Round2() instead of Round2Signed() in
av1_filter_intra_predictor_c() and highbd_filter_intra_predictor().

Document ROUND_POWER_OF_TWO() and ROUND_POWER_OF_TWO_64() are usually
used with value >= 0, but can also be used with a negative value.

Change-Id: I23c22bc4980138bca2345938761da1d0dea5dd03