commit 0f6da1a299c8dd924d19714ee69d343915c32d2c
author Raph Levien <raph@google.com> Fri Nov 14 13:51:32 2014 -0800
committer Raph Levien <raph@google.com> Fri Nov 14 15:08:33 2014 -0800
tree c894743ec79f1bc5359ab64dc05a71b9a5865187
parent 460bdad43aaec3c6ffe7f259719e00807742ad6d

Reduce audio output latency

This patch reduces latency in the OpenSL ES player path by calling the
callback immediately before data is consumed, rather than after.

Bug: 12246268
Change-Id: I8273b4a03f16011beec21dd52545f8ad1a25fd95

src/itf/IBufferQueue.c

diff --git a/src/itf/IBufferQueue.c b/src/itf/IBufferQueue.c
index 9503694..4e310b7 100644
--- a/src/itf/IBufferQueue.c
+++ b/src/itf/IBufferQueue.c
@@ -96,6 +96,7 @@
             thiz->mState.count = 0;
             thiz->mState.playIndex = 0;
             thiz->mSizeConsumed = 0;
+            thiz->mCallbackPending = false;
         }
     }
 #endif
@@ -185,6 +186,7 @@
     thiz->mRear = NULL;
 #ifdef ANDROID
     thiz->mSizeConsumed = 0;
+    thiz->mCallbackPending = false;
 #endif
     BufferHeader *bufferHeader = thiz->mTypical;
     unsigned i;