Multi-arf: Add code to turn it on and off.
Add test code to turn multi-arf on and off depending on group length and zero motion. Changes to active max group length for mult-arf. Fund second arf only from normal frame bits. Change-Id: I920287fac1c886428c15a39f731a25d07c2b796c
Showing with 28 additions and 20 deletions