Change directory structure

code/jetson-deployment/image-capture/Makefile

@@ -0,0 +1,13 @@
+CC=gcc
+CXX=g++
+SRCS=capture.cc
+OBJS=$(subst .cc,.o,$(SRCS))
+
+all: $(SRCS)
+	$(CXX) -std=c++11 -Wall -I/usr/lib/opencv -I/usr/include/opencv4 $< -L/usr/lib -lopencv_core -lopencv_videoio -lopencv_imgcodecs -o capture
+
+clean:
+	rm -f $(OBJS)
+
+distclean: clean
+	rm -f capture

code/jetson-deployment/image-capture/capture.cc

@@ -0,0 +1,58 @@
+#include <cstdio>
+#include <opencv2/opencv.hpp>
+
+using namespace std;
+using namespace cv;
+
+string video_pipeline(int capture_width, int capture_height, int framerate,
+                      int flip_method) {
+  return "nvarguscamerasrc ! "
+         "video/x-raw(memory:NVMM),width=(int)" +
+         to_string(capture_width) + ",height=(int)" +
+         to_string(capture_height) + ",framerate=(fraction)" +
+         to_string(framerate) +
+         "/1 ! "
+         "nvvidconv flip-method=" +
+         to_string(flip_method) +
+         " ! "
+	 "video/x-raw,format=(string)BGRx ! "
+         "videoconvert ! "
+	 "video/x-raw,format=(string)BGR,width=(int)3264,height=(int)2464 ! "
+         "appsink";
+}
+
+int main() {
+  int capture_width = 3264;
+  int capture_height = 2464;
+  int framerate = 21;
+  int flip_method = 2;
+
+  string pipeline =
+      video_pipeline(capture_width, capture_height, framerate, flip_method);
+  cout << "Using pipeline: \n\t" << pipeline << endl;
+
+  VideoCapture cap(pipeline, CAP_GSTREAMER);
+  if (!cap.isOpened()) {
+    cout << "Failed to open camera." << endl;
+    return -1;
+  }
+
+  Mat img;
+
+  // Take 21 images (1s) to get automatic ISO
+  for (int i = 0; i < 21; i++) {
+    cap.read(img);
+  }
+
+  cap.read(img);
+
+  try {
+    imwrite("current.jpg", img);
+  } catch (const Exception &ex) {
+    fprintf(stderr, "Exception converting image to JPG format: %s\n",
+            ex.what());
+  }
+
+  cap.release();
+  return 0;
+}