I am using libcamera for my C++ application to capture still frames via Raspberry Pi High Definition camera. This is how I configure it:And this is how I capture the frames:This works fine for daylight captures, but at night it is litteraly a black screen. I tried setting exposure manually and I know that the camera is able to capture good images with just 1s of exposure. I noticed that AWB starts making nice corrections for reqeusts after the first one, but AE doesn't seem to be doing anything at all.
This:Outputs:every time I call the function.
I tried to search for guides for this, but couldn't find anything. What am I doing wrong here?
Code:
std::unique_ptr<lc::CameraConfiguration> cameraConfig = camera->generateConfiguration({ lc::StreamRole::StillCapture });lc::StreamConfiguration& streamConfig = cameraConfig->at(0);streamConfig.size.width = 4056;streamConfig.size.height = 3040;streamConfig.pixelFormat = lc::formats::BGR888;cameraConfig->validate();Code:
Camera::Image Camera::capture(){ /* m_camera->start(); already called */ std::unique_lock lock(m_mutex); std::unique_ptr<lc::Request> request = m_camera->createRequest(); lc::Stream* stream = m_cameraConfig->at(0).stream(); request->addBuffer(stream, m_allocator->buffers(stream).at(0).get()); Image image; m_image = ℑ m_camera->queueRequest(request.get()); m_cv.wait(lock); // Wait for the capture to finish m_image = nullptr; return image;}This:
Code:
lc::ControlList& controls = request->controls();bool aeEnabled = *controls.get(lc::controls::AeEnable);uint32_t exposure = *controls.get(lc::controls::ExposureTime);std::cerr << "AeEnabled: " << aeEnabled << '\n';std::cerr << "Exposure: " << exposure / 1'000'000.0 << "s\n";Code:
AeEnabled: 156 // << A bool is 156?Exposure: 0.001024sI tried to search for guides for this, but couldn't find anything. What am I doing wrong here?
Statistics: Posted by KontraBob — Sat Oct 19, 2024 8:47 am — Replies 0 — Views 4