Got rid of warnings in the audio section

Author: devopvoid

webrtc-jni/src/main/cpp/src/JNI_AudioProcessing.cpp

@@ -90,7 +90,7 @@ JNIEXPORT jint JNICALL Java_dev_onvoid_webrtc_media_audio_AudioProcessing_proces
 			return -9;
 		}
 
-		for (int i = srcNumSamples - 1; i >= 0; i--) {
+		for (int i = static_cast<int>(srcNumSamples) - 1; i >= 0; i--) {
 			for (size_t j = 0; j < dstNumChannels; ++j) {
 				dstFrame[dstNumChannels * i + j] = srcFrame[i];
 			}
@@ -148,7 +148,7 @@ JNIEXPORT jint JNICALL Java_dev_onvoid_webrtc_media_audio_AudioProcessing_proces
 			return -9;
 		}
 
-		for (int i = srcNumSamples - 1; i >= 0; i--) {
+		for (int i = static_cast<int>(srcNumSamples) - 1; i >= 0; i--) {
 			for (size_t j = 0; j < dstNumChannels; ++j) {
 				dstFrame[dstNumChannels * i + j] = srcFrame[i];
 			}

webrtc-jni/src/main/cpp/src/media/audio/AudioTransportSource.cpp

@@ -43,7 +43,7 @@ namespace jni
 		*elapsed_time_ms = 0;
 		*ntp_time_ms = 0;
 
-		jsize bufferSize = nSamples * nBytesPerSample;
+		jsize bufferSize = static_cast<jsize>(nSamples * nBytesPerSample);
 
 		if (buffer.get() == nullptr) {
 			jbyteArray dataArray = env->NewByteArray(bufferSize);