Camera board • Re: Extracting Chroma Data From Luminance Mat Object

Code:

/* * -------------------------------------------------------------------- * Frame Capture * * libcamera frames capture model is based on the 'Request' concept. * For each frame a Request has to be queued to the Camera. * * A Request refers to (at least one) Stream for which a Buffer that * will be filled with image data shall be added to the Request. * * A Request is associated with a list of Controls, which are tunable * parameters (similar to v4l2_controls) that have to be applied to * the image. * * Once a request completes, all its buffers will contain image data * that applications can access and for each of them a list of metadata * properties that reports the capture parameters applied to the image. */Stream *stream = streamConfig.stream();const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator->buffers(stream);std::vector<std::unique_ptr<Request>> requests;for (unsigned int i = 0; i < buffers.size(); ++i){std::unique_ptr<Request> request = camera->createRequest();if (!request){std::cerr << "Can't create request" << std::endl;return EXIT_FAILURE;}const std::unique_ptr<FrameBuffer> &buffer = buffers[i];int ret = request->addBuffer(stream, buffer.get());if (ret < 0){std::cerr << "Can't set buffer for request"  << std::endl;return EXIT_FAILURE;}/* * Controls can be added to a request on a per frame basis. */ControlList &controls = request->controls();// controls.set(controls::Brightness, 0.5); // This was here orignallycontrols.set(controls::AE_ENABLE, true);requests.push_back(std::move(request));}