Fix 'potentially uninitialized variable' warnings

obs/window-basic-main.cpp

@@ -1478,6 +1478,7 @@ void OBSBasic::StreamingStop(int code)
 		errorMessage = Str("Output.ConnectFail.InvalidStream");
 		break;
 
+	default:
 	case OBS_OUTPUT_ERROR:
 		errorMessage = Str("Output.ConnectFail.Error");
 		break;

obs/window-basic-settings.cpp

@@ -563,7 +563,7 @@ void OBSBasicSettings::SaveVideoSettings()
 	QString baseResolution   = ui->baseResolution->currentText();
 	QString outputResolution = ui->outputResolution->currentText();
 	int     fpsType          = ui->fpsType->currentIndex();
-	uint32_t cx, cy;
+	uint32_t cx = 0, cy = 0;
 
 	/* ------------------- */