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     42 
     43 #include "test_precomp.hpp"
     44 #include "opencv2/videoio/videoio_c.h"
     45 #include <stdio.h>
     46 
     47 using namespace cv;
     48 using namespace std;
     49 
     50 class CV_FramecountTest: public cvtest::BaseTest
     51 {
     52 public:
     53     void run(int);
     54 };
     55 
     56 void CV_FramecountTest::run(int)
     57 {
     58     const int time_sec = 5, fps = 25;
     59 
     60     const string ext[] = {"avi", "mov", "mp4"};
     61 
     62     const size_t n = sizeof(ext)/sizeof(ext[0]);
     63 
     64     const string src_dir = ts->get_data_path();
     65 
     66     ts->printf(cvtest::TS::LOG, "\n\nSource files directory: %s\n", (src_dir+"video/").c_str());
     67 
     68     Ptr<CvCapture> cap;
     69 
     70     for (size_t i = 0; i < n; ++i)
     71     {
     72         string file_path = src_dir+"video/big_buck_bunny."+ext[i];
     73 
     74         cap.reset(cvCreateFileCapture(file_path.c_str()));
     75         if (!cap)
     76         {
     77             ts->printf(cvtest::TS::LOG, "\nFile information (video %d): \n\nName: big_buck_bunny.%s\nFAILED\n\n", i+1, ext[i].c_str());
     78             ts->printf(cvtest::TS::LOG, "Error: cannot read source video file.\n");
     79             ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
     80             return;
     81         }
     82 
     83         //cvSetCaptureProperty(cap, CV_CAP_PROP_POS_FRAMES, 0);
     84         IplImage* frame; int FrameCount = 0;
     85 
     86         for(;;)
     87         {
     88             frame = cvQueryFrame(cap);
     89             if( !frame )
     90                 break;
     91             FrameCount++;
     92         }
     93 
     94         int framecount = (int)cvGetCaptureProperty(cap, CAP_PROP_FRAME_COUNT);
     95 
     96         ts->printf(cvtest::TS::LOG, "\nFile information (video %d): \n"\
     97                    "\nName: big_buck_bunny.%s\nActual frame count: %d\n"\
     98                    "Frame count computed in the cycle of queries of frames: %d\n"\
     99                    "Frame count returned by cvGetCaptureProperty function: %d\n",
    100                    i+1, ext[i].c_str(), time_sec*fps, FrameCount, framecount);
    101 
    102         if( (FrameCount != cvRound(time_sec*fps) ||
    103              FrameCount != framecount) && ext[i] != "mpg" )
    104         {
    105             ts->printf(cvtest::TS::LOG, "FAILED\n");
    106             ts->printf(cvtest::TS::LOG, "\nError: actual frame count and returned frame count are not matched.\n");
    107             ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
    108             return;
    109         }
    110     }
    111 }
    112 #if BUILD_WITH_VIDEO_INPUT_SUPPORT && defined HAVE_FFMPEG
    113 TEST(Videoio_Video, framecount) {CV_FramecountTest test; test.safe_run();}
    114 #endif
    115