ref: f51f0998e1ca99cd7497ded3642bb27445b1b215
parent: 1ff2935ebf6c537340861bd590329ba5a49b96e3
author: Marco <marpan@google.com>
date: Thu Feb 25 03:38:08 EST 2016
vp9-svc: Fix speed issue with source downscaling for spatial layers. For 1 pass cbr mode: allow for two-stage 1:2 scaling (which will use the 1:2 optimized scaler) if the spatial layer is 1/4x1/4 of souce. Without this change, the base layer for 3 spatial layers would be using the non-normative scaler which is un-optimized/C code. Change-Id: Ifcf526ec2aaf3e5fa7924588d9dd8660bf02fb46