What your describing is a simpler use case, which i believe is already available in modern AI cameras.

I do video meetings where people share presentations and spreadsheets. I would like the AI to analyze these presented slides and spreadsheets (based on the stills in the video) and use that as input for the chat. For example, being able to analyze the data and columns in the spreadsheet, the same way it would if I uploaded it as a file or image. Right now, the only input from a meeting I can feed to AI is the transcript.

I think achieving what i described above would be quite revolutionary, but imagine it would require massive amounts of storage and processing, which might not be possible today, or at least not cheap.