Reduce latency in device capture and parallel encoding

components/rgbd-sources/src/sources/stereovideo/rectification.cpp

@@ -112,7 +112,10 @@ void StereoRectification::calculateParameters() {
 
 void StereoRectification::rectify(cv::InputArray im, cv::OutputArray im_out, Channel c) {
 
-	if (!enabled_ || !valid_) { return; }
+	if (!enabled_ || !valid_) {
+		im.copyTo(im_out);
+		return;
+	}
 
 	if (im.size() != image_resolution_) {
 		throw ftl::exception("Input has wrong size");