mm-dash: DashCodec: add an extra buffer to ANW's BUfferQueue

Add an extra min-undequeued buffer to ensure framework (DashCodec)
has a free buffer to dequeue rather than wait for the queued buffer
to be displayed.
This improves the performance of DashPlayback with DashPlayer.

CRs-Fixed: 653643
Change-Id: If82d406a58e5e1cfec672b816f8ce9c257bb4704
1 file changed
tree: 507c1d2789e9ee703333e83bdf9eb60bb862dfb2
  1. dashplayer/
  2. QCMediaPlayer/
  3. Android.mk