tree 0e7d9ffeed0c838bb08d733f2819b1cc95cf038b
parent 627eb7e4e0cfaa17283e2afb922e65a31182f07c
author Yue Chen <yuec@google.com> 1554500009 -0700
committer Debargha Mukherjee <debargha@google.com> 1554521901 +0000

Correct deltaq calculation

In encoding process, deltaq should be multiples of delta_q_res +
xd->current_qindex (q of last SB). In setup_delta_q(), first the
new qindex is calculated without restricting the delta to be
multiples of delta_q_res, then adjust the delta according to the
base value. This patch:
- correct the base value from frame level q cm->base_qindex to q
of last SB.
- Refactor the initial q calculation function to directly return
the new q, rather than the diff between q and framelevel baseq, so
an unnecessary intermediate variable offset_qindex can be removed.

Change-Id: I9f3130824dd3edb32d1ab8827436438dc07b4dfd