A method and apparatus are provided for annotating video and audio media
with supplementary content for post video processing. In one embodiment,
the invention may include maintaining a current state of auxiliary
information regarding a sequence of video frames, the sequence of video
frames being encoded as a video bit stream having video frame data for
each respective video frame of the sequence of video frames. It may
further include comparing the current state of auxiliary information with
auxiliary information regarding a current video frame of the sequence of
video frames to determine differential information, and annotating the
differential information to the video bit stream as an annotation to the
video frame data for the current video frame.