opencv/modules/highgui/test/test_ffmpeg.cpp

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#include "test_precomp.hpp"
#include "opencv2/highgui/highgui.hpp"

using namespace cv;
using namespace std;

class CV_FFmpegWriteBigImagesTest : public cvtest::BaseTest
{
	public:
		void run(int)
		{
			try
			{
				Mat img = imread(string(ts->get_data_path()) + "readwrite/read.png", 0);
				if (img.empty()) ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
				imwrite(string(ts->get_data_path()) + "readwrite/write.png", img);
			}
			catch(...)
			{
				ts->set_failed_test_info(cvtest::TS::FAIL_EXCEPTION);
			}
			ts->set_failed_test_info(cvtest::TS::OK);
		}
};

class CV_FFmpegWriteBigVideoTest : public cvtest::BaseTest
{
	public:
		void run(int)
		{
			const int img_r = 4096;
			const int img_c = 4096;
			Size frame_s = Size(img_c, img_r);
			const double fps = 30;
			const double time_sec = 1;

			Mat img(img_r, img_c, CV_8UC3, Scalar::all(0));
			try
			{
				VideoWriter writer(string(ts->get_data_path()) + "video/output.avi",
					CV_FOURCC('X', 'V', 'I', 'D'), fps, frame_s);

				if (writer.isOpened() == false) ts->set_failed_test_info(cvtest::TS::FAIL_EXCEPTION);

				for (int i = 0 ; i < static_cast<int>(fps * time_sec); i++ )
				{
					circle(img, Point2i(img_c / 2, img_r / 2), cv::min(img_r, img_c) / 2 * (i + 1), Scalar::all(255));
					writer << img;
				}
			}
			catch(...)
			{
				ts->set_failed_test_info(cvtest::TS::FAIL_EXCEPTION);
			}
			ts->set_failed_test_info(cvtest::TS::OK);
		}
};


TEST(Highgui_FFmpeg_WriteBigImage, regression) { CV_FFmpegWriteBigImagesTest test; test.safe_run(); }
TEST(Highgui_FFmpeg_WriteBigVideo, regression) { CV_FFmpegWriteBigVideoTest  test; test.safe_run(); }