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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;
        const double fps0 = 15;
        const double time_sec = 1;
        
        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;
        int tag = codec_bmp_tags[j].tag;
        
        if( tag != MKTAG('H', '2', '6', '3') &&
            tag != MKTAG('H', '2', '6', '1') &&
            tag != MKTAG('D', 'I', 'V', 'X') &&
            tag != MKTAG('D', 'X', '5', '0') &&
            tag != MKTAG('X', 'V', 'I', 'D') &&
            tag != MKTAG('m', 'p', '4', 'v') &&
            tag != MKTAG('D', 'I', 'V', '3') &&
            tag != MKTAG('W', 'M', 'V', '1') &&
            tag != MKTAG('W', 'M', 'V', '2') &&
            tag != MKTAG('M', 'P', 'E', 'G') &&
            tag != MKTAG('M', 'J', 'P', 'G') &&
            tag != MKTAG('j', 'p', 'e', 'g') &&
            tag != 0 &&
            tag != MKTAG('I', '4', '2', '0') &&
            tag != MKTAG('Y', 'U', 'Y', '2') &&
            tag != MKTAG('F', 'L', 'V', '1') )
            continue;

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

        try
        {
            double fps = fps0;
            Size frame_s = Size(img_c, img_r);
            
            if( tag == CV_FOURCC('H', '2', '6', '1') )
                frame_s = Size(352, 288);
            else if( tag == CV_FOURCC('H', '2', '6', '3') )
                frame_s = Size(704, 576);
            /*else if( tag == CV_FOURCC('M', 'J', 'P', 'G') ||
                     tag == CV_FOURCC('j', 'p', 'e', 'g') )
                frame_s = Size(1920, 1080);*/
            
            if( tag == CV_FOURCC('M', 'P', 'E', 'G') )
                fps = 25;
            
            VideoWriter writer(filename, 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: %c%c%c%c\n", j,
                           tag & 255, (tag >> 8) & 255, (tag >> 16) & 255, (tag >> 24) & 255);
                ts->printf(ts->LOG, "Error: cannot create video file.");
                ts->set_failed_test_info(ts->FAIL_INVALID_OUTPUT);
            }
            else
            {
                Mat img(frame_s, CV_8UC3, Scalar::all(0));
                const int coeff = cvRound(cv::min(frame_s.width, frame_s.height)/(fps0 * time_sec));

                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