commit a298101317e5472f6b6a12e6ddeafdc4064bd5b2
author Robert Shih <robertshih@google.com> Wed Jul 30 17:41:24 2014 -0700
committer Robert Shih <robertshih@google.com> Thu Jul 31 11:04:54 2014 -0700
tree ca05f65d99b30b045799216ded4502d04a3b765e
parent 3423bbdb05f843a64356fa24e8657f03ecbb7d65

NuPlayer: fix av discontinuity race

Assumption:
  NuPlayer must see both (a/v) discontinuities before resuming.

Example issue:
  Suppose we're changing the video track, so the video source queues a
  DISCONTINUITY_FORMATCHANGE, and the audio source queues a DISCONTINUITY_NONE.
  Consider this sequence of events without this change:
    1. audio discontinuity seen by player
    2. mFlushingAudio = FLUSHED
    3. video discontinuity seen by player
    4. mFlushingAudio != NONE so no performScanSources is queued
    5. video decoding shuts down without being restarted

Bug: 15153976
Change-Id: I659550d9c0f883828103142abead857f576f25b1