/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * libcamera V4L2 API tests */ #include <iostream> #include <libcamera/framebuffer.h> #include <libcamera/base/event_dispatcher.h> #include <libcamera/base/thread.h> #include <libcamera/base/timer.h> #include "v4l2_videodevice_test.h" using namespace libcamera; class CaptureAsyncTest : public V4L2VideoDeviceTest { public: CaptureAsyncTest() : V4L2VideoDeviceTest("vimc", "Raw Capture 0"), frames(0) {} void receiveBuffer(FrameBuffer *buffer) { std::cout << "Buffer received" << std::endl; frames++; /* Requeue the buffer for further use. */ capture_->queueBuffer(buffer); } protected: int run() { const unsigned int bufferCount = 8; EventDispatcher *dispatcher = Thread::current()->eventDispatcher(); Timer timeout; int ret; ret = capture_->allocateBuffers(bufferCount, &buffers_); if (ret < 0) { std::cout << "Failed to allocate buffers" << std::endl; return TestFail; } capture_->bufferReady.connect(this, &CaptureAsyncTest::receiveBuffer); for (const std::unique_ptr<FrameBuffer> &buffer : buffers_) { if (capture_->queueBuffer(buffer.get())) { std::cout << "Failed to queue buffer" << std::endl; return TestFail; } } ret = capture_->streamOn(); if (ret) return TestFail; timeout.start(10000); while (timeout.isRunning()) { dispatcher->processEvents(); if (frames > 30) break; } if (frames < 1) { std::cout << "Failed to capture any frames within timeout." << std::endl; return TestFail; } if (frames < 30) { std::cout << "Failed to capture 30 frames within timeout." << std::endl; return TestFail; } std::cout << "Processed " << frames << " frames" << std::endl; ret = capture_->streamOff(); if (ret) return TestFail; return TestPass; } private: unsigned int frames; }; TEST_REGISTER(CaptureAsyncTest)