1. A computer-implemented system for processing digital data, the system comprising: an analysis component operating within a camera, the analysis component being configured for computing a motion vector of a frame in a video stream captured by the camera and for computing metadata for the motion vector, wherein the metadata comprises a motion quality index associated with the motion vector; and a communications component for communicating the motion vector and the metadata from the camera to a compression engine operating within a computing component that is external to the camera, the computing component being configured for compressing, using the compression engine, the frame in the video stream using the motion vector computed in the camera.