am 73abc2ea: Merge change I9c6e1f90 into eclair-mr2

Merge commit '73abc2ea4c4e23a5561bbf769b4b74d1faa38e4a' into eclair-mr2-plus-aosp

* commit '73abc2ea4c4e23a5561bbf769b4b74d1faa38e4a':
  Initial check in of stagefright software AAC decoder based on PV source code.