This paper presents the status of a project targeting the development of content-based video indexing tools, to assist a human in the generation of descriptive video for the hard of seeing people. We describe three main elements: (1) the video content that is pertinent for computer-assisted descriptive video, (2) the system dataflow, based on a light plug-in architecture of an open-source video processing software and (3) the first version of the plug-ins developed to date. Plugs-ins that are under development include shot transition detection, key-frames identification, keyface detection, key-text spotting, visual motion mapping, face recognition, facial characterization, story segmentation, gait/gesture characterization, keyplace recognition, key-object spotting and image categorization. Some of these tools are adapted from our previous works on video surveillance, audiovisual speech recognition and content-based video indexing of documentary films. We do not focus on the algorithmi...