commit 69488c4ef115c9de52c85f4fcae27c7774720298
author Andy Hung <hunga@google.com> Mon May 16 18:43:33 2016 -0700
committer Andy Hung <hunga@google.com> Tue May 24 18:59:42 2016 -0700
tree 9f1be0c3a13dec3768aa3e314f346afa7aa96ff0
parent f3d9908a888203e7e70b8c2d43ee741a95e154ed

AudioTrack: Fix timestamp startup condition

Suppress timestamps without valid kernel information or
a server update.

Update timing of server timestamp location to better indicate
when the server pull occurs.

Update write timing logic to suppress unneeded time calls
and to ensure proper throttling.

Bug: 28771691
Change-Id: I2cd25dad638ca1d0b1355d87d175d908f3bddb26

media/libmedia/AudioTrack.cpp

diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index f206f5c..1963da3 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -2390,6 +2390,9 @@
                     } else {
                         timestamp.mPosition = (uint32_t)(ets.mPosition[location] - frames);
                     }
+                } else if (location == ExtendedTimestamp::LOCATION_KERNEL) {
+                    ALOGV_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_SERVER,
+                            "getTimestamp() location moved from server to kernel");
                 }
                 mPreviousLocation = location;
             } else {