commit 4d453830b6a8fb7571a88a9a241eabd50a483c44
author Eino-Ville Talvala <etalvala@google.com> Fri Jul 15 11:56:53 2016 -0700
committer Eino-Ville Talvala <etalvala@google.com> Mon Jul 18 11:09:08 2016 -0700
tree 8cde39560a9a84e3b1807e2fe3cc1346c50feb68
parent cecb30a22f3657483f07f259231b81b02b2a7305

Camera3Device: Add dumpsys monitoring of request/result metadata

Add new -m dumpsys option to cameraservice dump for monitoring
changes in selected metadata values in requests and results.

This option takes a comma-separated list of metadata keys, or the
shortcut value "3a", which expands to all the "android.control" tags.

In subsequent dumpsys calls, the last 100 changes to the tags being
monitored are listed.

The monitoring must be turned on once the camera device is running.

Bug:
Change-Id: If8938b30611ccafa86c2c4a06e57fc72680f827b