OpenCV 3.0 VideoCapture doesn't open video file in Java

Question

OpenCV 3.0 with Java cannot open video file, but it woks with camera. Before I was using OpenCV 3.0-beta it was working well in both, but in OpenCV 3.0 which is released on

Answer 1

Even after adding C:\opencv\build\x64\vc12\bin to SYSTEM path, if you cannot open VideoCapture then you could also try coping opencv_ffmpegXXX_64.dll from opencv/build/java/x64 or from opencv\build\x64\vc14\bin. I don't know why this works but it worked for me after trying:

https://stackoverflow.com/a/29920295/677185 and https://github.com/opencv/opencv/issues/4974