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