Reading mp4 video (Go Pro) using OpenCV

Question

I'm having difficulty reading in some video files when using OpenCV with the C ++ interface in Visual Studio 2013. I could read in other video formats, so I think my code is fine.

Problems with the video files were made using Go Pro and mp4. I can play them on the same machine that I use OpenCV using a classic media player. I used MediaInfo to collect information about the video file:

Format: MPEG-4 Profile Profile: JVT Codec ID: avc1 File Size: 126 MiB

I tried to provide 4ccc codes explicitly using the installed OpenCV function and providing divx as code and avc1, but no luck.

My program code is as follows:

int main(int argc, char** argv) {
    if (argc != 2) {
        help(argv);
        system("Pause");
        return 1;
    }

    std::string arg = argv[1];
    VideoCapture capture;
    capture.set(CV_CAP_PROP_FOURCC, CV_FOURCC('A', 'V', 'C', '1'));
    capture.open(arg);
    if (!capture.isOpened()) {
        cerr << "Failed to open video file!\n" << endl;
        help(argv);
        system("Pause");
        return 1;
    }
    return process(capture);
}

   void help(char** argv) {
        cout << "\n TBC" << endl;
    }

    int process(VideoCapture& src) {
        Scalar const LOW_HSV_THRESHOLD(120, 45, 75);
        Scalar const HIGH_HSV_THRESHOLD(140, 55, 85);
        string windowName[] = { "Original", "HSV", "In Range", "Binary"};
        namedWindow(windowName[0], CV_WINDOW_KEEPRATIO); 
        namedWindow(windowName[1], CV_WINDOW_KEEPRATIO); 
        namedWindow(windowName[2], CV_WINDOW_KEEPRATIO);
        namedWindow(windowName[3], CV_WINDOW_KEEPRATIO);
        Mat matOriginal;
        Mat matHsv;
        Mat matInRange;
        Mat dst;
        src >> matOriginal;

        cvtColor(matOriginal, matHsv, CV_BGR2HSV);
        GaussianBlur(matHsv, matHsv, Size(5, 5), 1.5);

        cvtColor(matOriginal, matInRange, CV_BGR2GRAY);
        threshold(matInRange, dst, 100, 255, THRESH_BINARY);
        //inRange(matHsv, LOW_HSV_THRESHOLD, HIGH_HSV_THRESHOLD, matInRange);
        imshow(windowName[0], matOriginal);
        imshow(windowName[1], matHsv);
        imshow(windowName[2], matInRange);
        imshow(windowName[3], dst);

        waitKey(0);
        return 0;
    }

}

Any help would be greatly appreciated.

Many thanks,

Kevin

Answer 1

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opencv , , ffmpeg, .

" " ffmpeg PATH .

, , opencv ffmpeg. CMake-GUI, opencv, ffmpeg ( USE_FFMPEG). Cmake Visual Studio, .

- opencv

Answer 2

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Release Release (C:\Users\Test\Projects\MyProject\Release) opencv_ffmpeg2410.dll(2410 opencv, ). Visual Studio, .

: -, , , , opencv_ffmpeg2410.dll "" ( , , dll opencv bin). , .