Function test_frame

dlib/test/ffmpeg.cpp:82–117

    template <class pixel>
    void test_frame()
    {
        const matrix<pixel> img1 = get_random_image<pixel>();
        const matrix<pixel> img2 = get_random_image<pixel>();

        // Create a frame
        frame f1(img1.nr(), img1.nc(), pix_traits<pixel>::fmt, system_clock::time_point{});
        convert(img1, f1);

        // Check frame is correct
        check_image(f1, img1);

        // Copy
        frame f2(f1);

        // Check it's a deepcopy, i.e. pointers are different but values are the same
        check_image(f2, img1);

        // Check pointers are different
        DLIB_TEST(f1.get_frame().data[0] != f2.get_frame().data[0]);

        // Set f2 and check this doesn't affect f1
        f2 = frame(img2.nr(), img2.nc(), pix_traits<pixel>::fmt, system_clock::time_point{});
        convert(img2, f2);

        check_image(f2, img2);
        check_image(f1, img1);
        DLIB_TEST(f1.get_frame().data[0] != f2.get_frame().data[0]);

        // Move
        f2 = std::move(f1);
        check_image(f2, img1);
        DLIB_TEST(f1.is_empty());

        print_spinner();
    }

    template <typename pixel_type>
    static double psnr(const matrix<pixel_type>& img1, const matrix<pixel_type>& img2)