Source local, scrolling like YouTube

Source local, scrolling like YouTube

Odd ball question for somebody just getting started with html5 players and
streaming video....
When using YouTube long videos can be scrolled towards then end then
played from there. Assuming YouTube first pulls down metadata like total
video start/stop points and a bunch of thumbnails for scrolling.
Is this possible with videojs? Reason asking is that I have video data
inside a mongo database that I would like to stream similar to the YouTube
player.
Inside mongo I have a bunch of smaller h264 files each in a document:
actual raw h264 usually 1000kb (max 2 seconds), creation timestamp (long),
and potentially a converted format (like mp4) for known clients. Idea is
to query off a time range and order by creation time then piping the
results into readable stream. There is a nice ffmpeg module to take
streams and reformat if needed. Thought about piping the stream to the
client with binaryjs and appending it into the player.
But the source directives in the documentation are usually URLs plus I
need to lock down the start/stop point for the total video being played
plus thumbnails.