commit 421743b3f8d14b700f2e1be256e010756fa85af8
author Glenn Kasten <gkasten@google.com> Mon Jun 01 08:18:08 2015 -0700
committer Glenn Kasten <gkasten@google.com> Mon Jun 01 10:36:56 2015 -0700
tree 42744bdb16ca0ccaf3b7af79ef5d9a3bbd68e1cc
parent 11804f5ca4ebd3527e7cc3bcc529e8358a519f8e

Explicit log for AudioTrack::EVENT_UNDERRUN

Prompted by this bug, but not a fix for the bug

Bug: 21352202
Change-Id: I350d9d8660a367470450c9f54d7c541d4896ebda

media/libmediaplayerservice/MediaPlayerService.cpp

diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 9c0af4a..258dc13 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -1884,6 +1884,15 @@
                 me->mCallbackCookie, CB_EVENT_TEAR_DOWN);
         break;
 
+    case AudioTrack::EVENT_UNDERRUN:
+        // This occurs when there is no data available, typically occurring
+        // when there is a failure to supply data to the AudioTrack.  It can also
+        // occur in non-offloaded mode when the audio device comes out of standby.
+        //
+        // If you see this at the start of playback, there probably was a glitch.
+        ALOGI("callbackwrapper: EVENT_UNDERRUN (discarded)");
+        break;
+
     default:
         ALOGE("received unknown event type: %d inside CallbackWrapper !", event);
     }