Add the address of the first macroblock as an extended field in Tuner 1.1
Record event

Test: atest VtsHalTvTunerV1_1TargetTest
Bug: 158816517
Change-Id: I46b77210d5b97325f770bbb4095897f431aa0ee6
diff --git a/tv/tuner/1.1/vts/functional/DvrTests.cpp b/tv/tuner/1.1/vts/functional/DvrTests.cpp
index 0dfc032..1e478f5 100644
--- a/tv/tuner/1.1/vts/functional/DvrTests.cpp
+++ b/tv/tuner/1.1/vts/functional/DvrTests.cpp
@@ -192,9 +192,10 @@
 bool DvrCallback::readRecordFMQ() {
     android::Mutex::Autolock autoLock(mMsgLock);
     bool result = false;
+    int readSize = mRecordMQ->availableToRead();
     mDataOutputBuffer.clear();
-    mDataOutputBuffer.resize(mRecordMQ->availableToRead());
-    result = mRecordMQ->read(mDataOutputBuffer.data(), mRecordMQ->availableToRead());
+    mDataOutputBuffer.resize(readSize);
+    result = mRecordMQ->read(mDataOutputBuffer.data(), readSize);
     EXPECT_TRUE(result) << "can't read from Record MQ";
     mMsgCondition.signal();
     return result;