detect video frame and extract file

Project Description: This feature by default is not available in ffmpeg but can be done through building one code in ffmpeg to do the following: - Train ffmpeg by giving an input of an image/video/audio file - Match the image/video/audio file with the targeted video file - If match found extract that part from video Say for example i want to cut ALL the commercials from Drama video file and i already have the commercial audio/video file with me to train ffmpeg.