ref: c3a6943c16f701f5f344692e1a1af3a90f23d791
parent: d49a1a5329ea43968faaf295f7da5f72b28f971e
author: Hui Su <huisu@google.com>
date: Thu Aug 10 11:05:20 EDT 2017
VP9 level targeting: add a new AUTO mode In the new AUTO mode, restrict the minimum alt-ref interval and max column tiles adaptively based on picture size, while not applying any rate control constraints. This mode aims to produce encodings that fit into levels corresponding to the source picture size, with minimum compression quality lost. However, the bitstream is not guaranteed to be level compatible, e.g., the average bitrate may exceed level limit. BUG=b/64451920 Change-Id: I02080b169cbbef4ab2e08c0df4697ce894aad83c