tree d72b6ffcc7e33c178e3cac7c108b102041451cb6
parent ed8505836c0b2fba0ab4be0c1eff31d4f241bc1d
author Eric Laurent <elaurent@google.com> 1435336764 -0700
committer Eric Laurent <elaurent@google.com> 1435347493 -0700

reduce number of binder calls from mediaserver

Reduce the number of audio port, audio patch and
IO config changed binder calls from mediaserver to
client processes:
- Do not call IO config changed callback if selected
device is the same as previously selected one on a given
audio flinger playback or capture thread.
- Do not call the audio port or audo patch list update
callback on a client if this client as no listener registered.

Bug: 22045560.

Change-Id: If780e105404de79b7cb5c80c27b793ceb6b1c423