Using class `cv::VideoWriter` I can specify `CV_FOURCC_PROMPT` (which is -1) as `fourcc` parameter in constructor or its `open` function, in which case "Open Codec Selection Dialog" will be opened and user will select one of installed codecs. My application will perform video recording several times and I want to avoid asking user the same question more than once.
Is there a way to retrieve user selected codec from already opened `cv::VideoWriter` instance and re-use it as `fourcc` parameter for other instances?
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