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

#ifdef HAVE_FFMPEG

#include "ffmpeg_codecs.hpp"

using namespace cv;
using namespace std;

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 = 2;
        const int coeff = static_cast<int>(static_cast<double>(cv::min(img_c, img_r)) / (fps * time_sec));

        const size_t n = sizeof(codec_bmp_tags)/sizeof(codec_bmp_tags[0]);

        bool created = false;

        for (size_t j = 0; j < n; ++j)
        {
        stringstream s; s << codec_bmp_tags[j].tag;

        const string filename = "output_"+s.str()+".avi";

        Mat img(img_r, img_c, CV_8UC3, Scalar::all(0));
        try
        {
            VideoWriter writer(filename, codec_bmp_tags[j].tag, fps, frame_s);

            if (writer.isOpened() == false)
            {
                ts->printf(ts->LOG, "\n\nFile name: %s\n", filename.c_str());
                ts->printf(ts->LOG, "Codec id: %d   Codec tag: %d\n", j, codec_bmp_tags[j].tag);
                ts->printf(ts->LOG, "Error: cannot create video file.");
                ts->set_failed_test_info(ts->FAIL_INVALID_OUTPUT);
            }

            else

            {
                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(255, 0, 0, 0), 2);
                    rectangle(img, Point2i(coeff * i, coeff * i), Point2i(coeff * (i + 1), coeff * (i + 1)),
                              Scalar::all(255 * (1.0 - static_cast<double>(i) / (fps * time_sec * 2) )), -1);
                    writer << img;
                }

                if (!created) created = true;
                else remove(filename.c_str());
            }
        }
        catch(...)
        {
            ts->set_failed_test_info(ts->FAIL_INVALID_OUTPUT);
        }
        ts->set_failed_test_info(cvtest::TS::OK);

        }
    }
};

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

#endif