tree cf1b2fc8d66c59d4d19a57fe7c1cf200b4455184
parent 352f27bea3ea82b64234485de7a0f87a1991ab06
author Eric Laurent <elaurent@google.com> 1379033153 -0700
committer Eric Laurent <elaurent@google.com> 1379465082 -0700

add offloaded audio visualizer

Add library for visualizer effect used when
audio decompression is offloaded to QCOM audio DSP.
The implementation reads PCM back from the proxy port
in the audio DSP.
The audio HAL dynamically loads the effect library if present
and indicates offloaded output activity.
The PCM capture is only active when an offloaded output
is active and at least one effect is enabled on this output.

Bug: 8174410.

Change-Id: Ic78de932f9116e246494f9171c1cc7c3e35a0ea1