VT: fixed "Uninitialized scalar field" reported by static analysis

[Problem] Uninitialized scalar field (UNINIT_CTOR) for
          member variables of RTPSource & ARTPWriter
[Solution] initialize variables in constructor.

Bug: 175266635

Change-Id: I5b41cbe2090803a40852102afbe97e34cde79895
Signed-off-by: Byeongjo Park <bjo.park@samsung.com>
Signed-off-by: Kim Sungyeon <sy85.kim@samsung.com>
diff --git a/media/libmediaplayerservice/nuplayer/RTPSource.cpp b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
index b1901e8..f87eece 100644
--- a/media/libmediaplayerservice/nuplayer/RTPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTPSource.cpp
@@ -45,8 +45,18 @@
       mRTPConn(new ARTPConnection(ARTPConnection::kViLTEConnection)),
       mEOSTimeoutAudio(0),
       mEOSTimeoutVideo(0),
-      mLastCVOUpdated(-1) {
-      ALOGD("RTPSource initialized with rtpParams=%s", rtpParams.string());
+      mFirstAccessUnit(true),
+      mAllTracksHaveTime(false),
+      mNTPAnchorUs(-1),
+      mMediaAnchorUs(-1),
+      mLastMediaTimeUs(-1),
+      mNumAccessUnitsReceived(0),
+      mLastCVOUpdated(-1),
+      mReceivedFirstRTCPPacket(false),
+      mReceivedFirstRTPPacket(false),
+      mPausing(false),
+      mPauseGeneration(0) {
+    ALOGD("RTPSource initialized with rtpParams=%s", rtpParams.string());
 }
 
 NuPlayer::RTPSource::~RTPSource() {