tree a17a7c4eb503c1300063ff7564cbdd491ceb16d2
parent 2f64366ed87e848bad056d89c15212b357194513
author Yunqing Wang <yunqingwang@google.com> 1714059888 +0000
committer Urvang Joshi <urvang@google.com> 1714059888 +0000

Speed up handling of local buffers in build_inter_predictors_8x8_and_bigger()

This MR avoids the memset corresponds to the MV offsets (i.e., vx/vy buffers) as the population and utilization happens only for the required sub-blocks. Also, the temporary buffers used to store MV offsets, gradient information and OPFL prediction data are moved to heap memory from stack.

The encode time reduction:

* For GCC compiler, overall 1.247%.  1.776% for Qp110 & 135.
* For CLANG compiler, \<= 0.5%.

Decode time reduction of \~18% and \~4% is seen for GCC and CLANG compilers across all test-sets.

No stats change.