On Nexus 7 speed -5, -6, -7, and -8 saw about a 1% increase in perf for 480p. Speeds -5, -6, -7, and -8 saw about a 1.5% increase in perf for 720p. Tested on Nexus 7, built with ndk r10d, gcc 4.9. Change-Id: Ibf17ebfd952a6aec941719bd8306df8ec4574bee
