Method FromFile

Opens a video file or a capturing device or an IP video stream for video capturing with API Preference

public static VideoCapture FromFile(string fileName, VideoCaptureAPIs apiPreference = VideoCaptureAPIs.ANY)

fileName string: it can be: - name of video file (e.g. video.avi) - or image sequence (e.g. img_%02d.jpg, which will read samples like img_00.jpg, img_01.jpg, img_02.jpg, ...) - or URL of video stream (e.g. protocol://host:port/script_name?script_params|auth). Note that each video stream or IP camera feed has its own URL scheme. Please refer to the documentation of source stream to know the right URL.
apiPreference VideoCaptureAPIs: apiPreference preferred Capture API backends to use. Can be used to enforce a specific reader implementation if multiple are available: e.g. cv::CAP_FFMPEG or cv::CAP_IMAGES or cv::CAP_DSHOW.