diff --git a/modules/videoio/test/test_camera.cpp b/modules/videoio/test/test_camera.cpp index d1dd0d3988..d816f637a7 100644 --- a/modules/videoio/test/test_camera.cpp +++ b/modules/videoio/test/test_camera.cpp @@ -11,7 +11,7 @@ namespace opencv_test { namespace { -static void test_readFrames(/*const*/ VideoCapture& capture, const int N = 100) +static void test_readFrames(/*const*/ VideoCapture& capture, const int N = 100, Mat* lastFrame = NULL) { Mat frame; int64 time0 = cv::getTickCount(); @@ -26,6 +26,7 @@ static void test_readFrames(/*const*/ VideoCapture& capture, const int N = 100) } int64 time1 = cv::getTickCount(); printf("Processed %d frames on %.2f FPS\n", N, (N * cv::getTickFrequency()) / (time1 - time0 + 1)); + if (lastFrame) *lastFrame = frame.clone(); } TEST(DISABLED_VideoIO_Camera, basic) @@ -55,4 +56,39 @@ TEST(DISABLED_VideoIO_Camera, validate_V4L2_MJPEG) capture.release(); } +TEST(DISABLED_VideoIO_Camera, validate_V4L2_FrameSize) +{ + VideoCapture capture(CAP_V4L2); + 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; + int fourcc = (int)capture.get(CAP_PROP_FOURCC); + std::cout << "FOURCC code: " << cv::format("0x%8x", fourcc) << std::endl; + test_readFrames(capture, 30); + + EXPECT_TRUE(capture.set(CAP_PROP_FRAME_WIDTH, 640)); + EXPECT_TRUE(capture.set(CAP_PROP_FRAME_HEIGHT, 480)); + 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; + Mat frame640x480; + test_readFrames(capture, 30, &frame640x480); + EXPECT_EQ(640, frame640x480.cols); + EXPECT_EQ(480, frame640x480.rows); + + EXPECT_TRUE(capture.set(CAP_PROP_FRAME_WIDTH, 1280)); + EXPECT_TRUE(capture.set(CAP_PROP_FRAME_HEIGHT, 720)); + 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; + Mat frame1280x720; + test_readFrames(capture, 30, &frame1280x720); + EXPECT_EQ(1280, frame1280x720.cols); + EXPECT_EQ(720, frame1280x720.rows); + + capture.release(); +} + }} // namespace