ref: a8d44b99154767bb20b64589e1c90361a5910c40
parent: 7ba600dc894543c04996f7692042026ae0db165b
author: Minghai Shang <minghai@google.com>
date: Thu Sep 4 12:35:28 EDT 2014
[spatial svc]Add layer bitrates options and clean up parsing options from string Change-Id: I6e8d3f08c8a8ce3555a498feba471ba9fec411c6