tree fe40fe7dabd36809fc6cb72d4952f233f84ca064
parent bbb3e77ab0ca247c646d4a0f9d815bd6754d8eba
author Jean-Michel Trivi <jmtrivi@google.com> 1432675090 -0700
committer Jean-Michel Trivi <jmtrivi@google.com> 1432855176 -0700

Implement timestamp reporting functions

Count number of frames that have been written, reset on standby.
The presentation position is the number of written frames minus
  the frames still in the pipe (they were written but not presented).

Bug 21198864

Change-Id: I00ef10f56a825555e7a970cce1504a9bd3744e04