Use 4 threads for 360p and above.
Use tile rows for VGA and 4 threads.
Use speed 8 for 360p.
Change min max qp scaling threshold.
Bug: None
Change-Id: Ib7a5b7e539d26d9fa60aa2c4a75eb6f4b19f7dea
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/208340
Commit-Queue: Jerome Jiang <jianj@google.com>
Commit-Queue: Fyodor Kyslov <kyslov@google.com>
Reviewed-by: Marco Paniconi <marpan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33320}
90ea0a65f4