Ofcourse it's possible. You can program anything with Java. If nobody else has programmed it before, you can program it yourself. If you want to do that then you'll have to gather information on video file formats and find out how and where the data is stored in the files you want to analyze.
I don't think the RealMedia format is supported by anything but the RealMedia software (for which -as far as I know- no Java client library is available). The others should be accessible by one of the libraries mentioned; you may have to use more than one.
His brain is the size of a cherry pit! About the size of this ad: