test_framecount.cpp 4.41 KB
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
//                           License Agreement
//                For Open Source Computer Vision Library
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#include "test_precomp.hpp"
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#include "opencv2/highgui/highgui.hpp"
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#include <stdio.h>

using namespace cv;
using namespace std;

class CV_FramecountTest: public cvtest::BaseTest
{
public:
    void run(int);
};

void CV_FramecountTest::run(int)
{
    const int time_sec = 5, fps = 25;

    const string ext[] = {"avi", "mov", "mp4"};

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

    const string src_dir = ts->get_data_path();

    ts->printf(cvtest::TS::LOG, "\n\nSource files directory: %s\n", (src_dir+"video/").c_str());

    Ptr<CvCapture> cap;

    for (size_t i = 0; i < n; ++i)
    {
        string file_path = src_dir+"video/big_buck_bunny."+ext[i];

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        cap = cvCreateFileCapture(file_path.c_str());
        if (cap.empty())
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        {
            ts->printf(cvtest::TS::LOG, "\nFile information (video %d): \n\nName: big_buck_bunny.%s\nFAILED\n\n", i+1, ext[i].c_str());
            ts->printf(cvtest::TS::LOG, "Error: cannot read source video file.\n");
            ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
            return;
        }

        //cvSetCaptureProperty(cap, CV_CAP_PROP_POS_FRAMES, 0);
        IplImage* frame; int FrameCount = 0;

        for(;;)
        {
            frame = cvQueryFrame(cap);
            if( !frame )
                break;
            FrameCount++;
        }

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        int framecount = (int)cvGetCaptureProperty(cap, CV_CAP_PROP_FRAME_COUNT);
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        ts->printf(cvtest::TS::LOG, "\nFile information (video %d): \n"\
                   "\nName: big_buck_bunny.%s\nActual frame count: %d\n"\
                   "Frame count computed in the cycle of queries of frames: %d\n"\
                   "Frame count returned by cvGetCaptureProperty function: %d\n",
                   i+1, ext[i].c_str(), time_sec*fps, FrameCount, framecount);

        if( (FrameCount != cvRound(time_sec*fps) ||
             FrameCount != framecount) && ext[i] != "mpg" )
        {
            ts->printf(cvtest::TS::LOG, "FAILED\n");
            ts->printf(cvtest::TS::LOG, "\nError: actual frame count and returned frame count are not matched.\n");
            ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
            return;
        }
    }
}
#if BUILD_WITH_VIDEO_INPUT_SUPPORT && defined HAVE_FFMPEG
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TEST(Highgui_Video, framecount) {CV_FramecountTest test; test.safe_run();}
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#endif