diff --git a/base/CMakeLists.txt b/base/CMakeLists.txt
index 13aaf57eb..28a54417d 100755
--- a/base/CMakeLists.txt
+++ b/base/CMakeLists.txt
@@ -554,16 +554,7 @@ SET(UT_FILES
 	test/test_utils.h	
 	test/filewritermodule_tests.cpp
 	test/logger_tests.cpp
-	test/filewritermodule_tests.cpp
-	test/logger_tests.cpp
-#	test/logger_stress_tests.cpp  #todo this test needs to be improved and added
-	test/quepushstrategy_tests.cpp	
-	test/framesmuxer_tests.cpp
-	test/filereadermodule_tests.cpp
-	test/merge_tests.cpp
-	test/split_tests.cpp
-	test/imagemetadata_tests.cpp
-	test/bmpconverter_tests.cpp
+#	test/logger_stress_tests.cpp  #todo this test needs to be improved and added	
 	test/quepushstrategy_tests.cpp	
 	test/framesmuxer_tests.cpp
 	test/filereadermodule_tests.cpp
@@ -590,38 +581,12 @@ SET(UT_FILES
 	test/textoverlayxform_tests.cpp
 	test/mp4writersink_tests.cpp
 	test/pipeline_tests.cpp
-	test/findexstrategy_tests.cpp	
-	test/jpegdecodercv_tests.cpp
-	test/Imageresizecv_tests.cpp
-	test/faciallandmarkscv_tests.cpp
-	test/imageviewermodule_tests.cpp
-	test/ImageEncodeCV_tests.cpp
-	test/rotatecv_tests.cpp
-	test/affinetransform_tests.cpp
-	test/brightness_contrast_tests.cpp
-	test/virtualptz_tests.cpp
-	test/webcam_source_tests.cpp
-	test/facedetectorXform_tests.cpp
-	test/sound_record_tests.cpp
-	test/pullstratergy_tests.cpp
-	test/QRReader_tests.cpp
-	test/textoverlayxform_tests.cpp
-	test/mp4writersink_tests.cpp
-	test/pipeline_tests.cpp
 #	test/multiple_pipeline_tests.cpp #todo this test needs to be improved and added
 	test/valveModule_tests.cpp
 	test/color_conversion_tests.cpp
 	test/archivespacemanager_tests.cpp
 	test/multimediaqueuexform_tests.cpp
-  	test/mp4readersource_tests.cpp
-	test/rtsp_client_tests.cpp
-	test/valveModule_tests.cpp
-	test/color_conversion_tests.cpp
-	test/archivespacemanager_tests.cpp
-	test/multimediaqueuexform_tests.cpp
-  	test/mp4readersource_tests.cpp
-	test/rtsp_client_tests.cpp
-	test/rtsp_client_tests.cpp
+  test/mp4readersource_tests.cpp
 	test/rtsp_client_tests.cpp
 	test/motionvector_extractor_and_overlay_tests.cpp
 	test/mp4_reverse_play_tests.cpp
diff --git a/base/src/H264Decoder.cpp b/base/src/H264Decoder.cpp
index 882fc96ab..a14b66d11 100644
--- a/base/src/H264Decoder.cpp
+++ b/base/src/H264Decoder.cpp
@@ -206,7 +206,7 @@ void H264Decoder::bufferBackwardEncodedFrames(frame_sp& frame, short naluType)
 	}
 	// insert frames into the latest gop until I frame comes.
 	latestBackwardGop.emplace_back(frame);
-	H264Utils::H264_NAL_TYPE nalTypeAfterSpsPps;
+	H264Utils::H264_NAL_TYPE nalTypeAfterSpsPps = (H264Utils::H264_NAL_TYPE)1;
 	if(naluType == H264Utils::H264_NAL_TYPE_SEQ_PARAM)
 	{
 		nalTypeAfterSpsPps = H264Utils::getNalTypeAfterSpsPps(frame->data(), frame->size());
@@ -244,7 +244,7 @@ void H264Decoder::bufferAndDecodeForwardEncodedFrames(frame_sp& frame, short nal
 		if (!latestForwardGop.empty())
 		{
 			short naluTypeOfForwardGopFirstFrame = H264Utils::getNALUType((char*)latestForwardGop.front()->data());
-			H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsOfForwardGopFirstFrame;
+			H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsOfForwardGopFirstFrame = (H264Utils::H264_NAL_TYPE)1;
 			if(naluTypeOfForwardGopFirstFrame == H264Utils::H264_NAL_TYPE_SEQ_PARAM)
 			{
 				nalTypeAfterSpsPpsOfForwardGopFirstFrame = H264Utils::getNalTypeAfterSpsPps(latestForwardGop.front()->data(), latestForwardGop.front()->size());
@@ -295,7 +295,7 @@ void H264Decoder::bufferAndDecodeForwardEncodedFrames(frame_sp& frame, short nal
 
 	/* buffer fwd GOP and send the current frame */
 	// new GOP starts
-	H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsOfCurrentFrame;
+	H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsOfCurrentFrame = (H264Utils::H264_NAL_TYPE)1;
 	if(naluType == H264Utils::H264_NAL_TYPE_SEQ_PARAM)
 	{
 		nalTypeAfterSpsPpsOfCurrentFrame = H264Utils::getNalTypeAfterSpsPps(frame->data(), frame->size());
@@ -313,7 +313,7 @@ void H264Decoder::bufferAndDecodeForwardEncodedFrames(frame_sp& frame, short nal
 	// If direction changed to forward in the middle of GOP (Even the latest gop of backward was half and not decoded) , Then we drop the P frames until next I frame.
 	// We also remove the entries of P frames from the incomingFramesTSQ.
 	short latestForwardGopFirstFrameNaluType = H264Utils::getNALUType((char*)latestForwardGop.begin()->get()->data());
-	H264Utils::H264_NAL_TYPE naluTypeAfterSpsPpsOfLatestForwardGopFirstFrame;
+	H264Utils::H264_NAL_TYPE naluTypeAfterSpsPpsOfLatestForwardGopFirstFrame = (H264Utils::H264_NAL_TYPE)1;
 	if(latestForwardGopFirstFrameNaluType == H264Utils::H264_NAL_TYPE_SEQ_PARAM)
 	{
 			naluTypeAfterSpsPpsOfLatestForwardGopFirstFrame = H264Utils::getNalTypeAfterSpsPps(latestForwardGop.front()->data(), latestForwardGop.front()->size());
@@ -478,7 +478,7 @@ bool H264Decoder::process(frame_container& frames)
 			return true;
 		}
 
-		H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsCurrentFrame;
+		H264Utils::H264_NAL_TYPE nalTypeAfterSpsPpsCurrentFrame = (H264Utils::H264_NAL_TYPE)1;
 		if(naluType == H264Utils::H264_NAL_TYPE_SEQ_PARAM)
 		{
 			nalTypeAfterSpsPpsCurrentFrame = H264Utils::getNalTypeAfterSpsPps(frame->data(), frame->size());