ref: 4768087556ea8807bda2fa6e0ff726fd45bf5ed5
parent: cbc5681c01783a54d8f76d7a58a7bf24c0706f32
parent: b60d91f78e9013beee5ebf6ff850c01005ca9f4a
author: zhilwang <zhilwang@cisco.com>
date: Wed Mar 25 13:44:38 EDT 2015
Merge pull request #1879 from mstorsjo/downscale-min-res Don't downsample to anything smaller than 4x4 pixels