Open Source Computer Vision Library https://opencv.org/
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
// Note: all tests here are DISABLED by default due specific requirements.
// Don't use #if 0 - these tests should be tested for compilation at least.
//
// Usage: opencv_test_videoio --gtest_also_run_disabled_tests --gtest_filter=*VideoIO_Camera*<tested case>*
#include "test_precomp.hpp"
namespace opencv_test { namespace {
static void test_readFrames(/*const*/ VideoCapture& capture, const int N = 100)
{
Mat frame;
int64 time0 = cv::getTickCount();
for (int i = 0; i < N; i++)
{
SCOPED_TRACE(cv::format("frame=%d", i));
capture >> frame;
ASSERT_FALSE(frame.empty());
EXPECT_GT(cvtest::norm(frame, NORM_INF), 0) << "Complete black image has been received";
}
int64 time1 = cv::getTickCount();
printf("Processed %d frames on %.2f FPS\n", N, (N * cv::getTickFrequency()) / (time1 - time0 + 1));
}
TEST(DISABLED_VideoIO_Camera, basic)
{
VideoCapture capture(0);
ASSERT_TRUE(capture.isOpened());
std::cout << "Camera 0 via " << capture.getBackendName() << " backend" << std::endl;
std::cout << "Frame width: " << capture.get(CAP_PROP_FRAME_WIDTH) << std::endl;
std::cout << " height: " << capture.get(CAP_PROP_FRAME_HEIGHT) << std::endl;
std::cout << "Capturing FPS: " << capture.get(CAP_PROP_FPS) << std::endl;
test_readFrames(capture);
capture.release();
}
TEST(DISABLED_VideoIO_Camera, validate_V4L2_MJPEG)
{
VideoCapture capture(CAP_V4L2);
ASSERT_TRUE(capture.isOpened());
ASSERT_TRUE(capture.set(CAP_PROP_FOURCC, VideoWriter::fourcc('M', 'J', 'P', 'G')));
std::cout << "Camera 0 via " << capture.getBackendName() << " backend" << std::endl;
std::cout << "Frame width: " << capture.get(CAP_PROP_FRAME_WIDTH) << std::endl;
std::cout << " height: " << capture.get(CAP_PROP_FRAME_HEIGHT) << std::endl;
std::cout << "Capturing FPS: " << capture.get(CAP_PROP_FPS) << std::endl;
int fourcc = (int)capture.get(CAP_PROP_FOURCC);
std::cout << "FOURCC code: " << cv::format("0x%8x", fourcc) << std::endl;
test_readFrames(capture);
capture.release();
}
//Following test if for capture device using PhysConn_Video_SerialDigital as crossbar input pin
TEST(DISABLED_VideoIO_Camera, dshow_avermedia_capture)
{
VideoCapture capture(0);
ASSERT_TRUE(capture.isOpened());
capture.set(CAP_PROP_CHANNEL, 6);
std::cout << "Camera 0 via " << capture.getBackendName() << " backend" << std::endl;
std::cout << "Frame width: " << capture.get(CAP_PROP_FRAME_WIDTH) << std::endl;
std::cout << " height: " << capture.get(CAP_PROP_FRAME_HEIGHT) << std::endl;
std::cout << "Capturing FPS: " << capture.get(CAP_PROP_FPS) << std::endl;
test_readFrames(capture);
capture.release();
}
}} // namespace