ref: e899859c48adf4f093fbd4fec74051ac9e108248
parent: 6ce515b9ff9000740bc47bb2dfa1b80df6ec2fc9
author: Minghai Shang <minghai@google.com>
date: Mon Jul 14 07:24:17 EDT 2014
[spatial svc]Implement alt reference frames All changes are for spatial svc only. 1. Enable encoding hidden frames in each layer and use alt reference idex to reference the hidden frame in each layer 2. Use golden reference idx for spatial reference 3. For those layers that don't have hidden frames (caused by lack of frame buffers), reference a hidden frame in lower layers 4. Add "auto-alt-refs" in svc options Change-Id: Idf27d1fd2fb5f3ffd9e86d2119235e3dad36c178