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

using namespace cv;
using namespace std;

class CV_FFmpegWriteBigImageTest : public cvtest::BaseTest
{
	public:
		void run(int)
		{
			try
			{
				Mat img = imread(string(ts->get_data_path()) + "readwrite/read.png");
				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);
		}
};

string ext_from_int(int ext)
{
	if (ext == 0) return ".png";
	if (ext == 1) return ".jpg";
	if (ext == 2) return ".bmp";
	if (ext == 3) return ".pgm";
	if (ext == 4) return ".tiff";
}

class CV_FFmpegWriteSequenceImageTest : public cvtest::BaseTest
{
	public:
		void run(int)
		{
			try
			{
				const int img_r = 640;
				const int img_c = 480;
				Size frame_s = Size(img_c, img_r);

				for (size_t ext = 0; ext < 5; ++ext) // 0 - png, 1 - jpg, 2 - bmp, 3 - pgm, 4 - tiff
				for (size_t k = 1; k <= 3; ++k)
					for (size_t num_channels = 1; num_channels <= 4; ++num_channels)
						for (size_t depth = CV_8U; depth <= CV_16U; ++depth)
						{
							Mat img(img_r * k, img_c * k, CV_MAKETYPE(depth, num_channels), Scalar::all(0));
							circle(img, Point2i((img_c * k) / 2, (img_r * k) / 2), cv::min((img_r * k), (img_c * k)) / 4 , Scalar::all(255));
							imwrite(string(ts->get_data_path()) + "readwrite/test" + ext_from_int(ext), img);
							Mat img_test = imread(string(ts->get_data_path()) + "readwrite/test" + ext_from_int(ext));
							CV_Assert(img.size() == img_test.size());
							CV_Assert(img.type() == img_test.type());
							if (countNonZero(img != img_test) != 0)
								ts->set_failed_test_info(cvtest::TS::FAIL_GENERIC);
						}
			}
			catch(...)
			{
				ts->set_failed_test_info(cvtest::TS::FAIL_EXCEPTION);
			}
			ts->set_failed_test_info(cvtest::TS::OK);
		}
};


TEST(Highgui_FFmpeg_WriteSequenceImage,    regression) { CV_FFmpegWriteSequenceImageTest test; test.safe_run(); }
TEST(Highgui_FFmpeg_WriteBigImage,         regression) { CV_FFmpegWriteBigImageTest      test; test.safe_run(); }
TEST(Highgui_FFmpeg_WriteBigVideo,         regression) { CV_FFmpegWriteBigVideoTest      test; test.safe_run(); }