official opencv java website: http://opencv.org/opencv-java-api.html opencv javadoc: http://docs.opencv.org/java/
I just find the "VideoCapture" class, but there is no "VideoWriter" class, so it can only capture one frame, but cannot capture H.264 video, for example.
I do not know why
This is a known bug . You will have to wait a bit for it to fix.