stagefright: Stability fixes

Add a null check around MediaCodec release to avoid the warning
from AMessage about target handler being gone.

Add bufferlock in updateBuffer to avoid race condition between
info->mFormat being assigned to mOutputFormat while mOutputFormat
is being updated at the same time.

Change-Id: Ibc5a9a79a840d1c15a99be7c74ded1588edf3918

1 files changed, 3 insertions, 1 deletions

diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index 1af2e2d..43589a5 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -79,7 +79,9 @@ NuPlayer::Decoder::Decoder(
 }
 
 NuPlayer::Decoder::~Decoder() {
-    mCodec->release();
+    if (mCodec != NULL) {
+        mCodec->release();
+    }
     releaseAndResetMediaBuffers();
 }