tree 4fd4aafa007a9a1a1547ba66b5743f9e9c6f4e87
parent 6092a6cd8661aa1b0fbe2258f5bb8a56c13a26fd
author Hui Su <huisu@google.com> 1569950327 -0700
committer Hui Su <huisu@google.com> 1570036301 +0000

Change COEFF_CONTEXT_BITS from 6 to 3

3 bits are enough for the transform coefficient entropy contexts because
they are saturated above 4. Reducing the number of bits help improve
encoding speed. Tests show about 1% instruction counts reduction.

Change-Id: Idcc0b6858dc83409f8da688704802b7b1a832d2e