tree 909d46e051bb0569796992c9ffa15b86b7fe98ac
parent 653cc0ab6d5b714d1f26adcd08f9bc3269b62fa0
author jiabin <jiabin@google.com> 1516733809 -0800
committer jiabin <jiabin@google.com> 1517017916 -0800

Support query active microphones in MediaRecorder.

This is part of device enumeration. With the new add API, developer
could get the active microphones information for each channel.

Bug: 64038649
Test: Run cts and check the print log.
Change-Id: I01941d8d1ca0f49d0af48210ef8b1149de31676a