Databases Reference
In-Depth Information
Figure 2: System configuration of Heijo
5.1.1
Clients
We employ Internet Explorer, a Web browser available on Windows 95/98, as the
user interface of Heijo. Video data are played back using Active Movie, which is a
plug-in program of Internet Explorer. Thus, users can perform miscellaneous special
playback, such as “rewind” and “fast-forward,” using the functionality provided
by ActiveMovie in addition to ordinary playback operation like “play” and “stop.”
Note that the name of this product has been changed from “ActiveMovie” to
“DirectShow” from Ver. 2.0. We, however, use “ActiveMovie” in the followings,
because our system uses Ver. 1.0.
5.1.2
Video capturing machine
We use a client with MPEG encoder board as the video capturing machine. Users
can capture video data, convert the data to a MPEG video, and create indexes on
the movie.
5.1.3
Media management database
The media management database maintains indexes for each media data, and is
constructed on the continuous media database (5.1.6) which plays an important
role of servers in UNIX side.
5.1.4
Continuous media management system
The continuous media management system manages handles media data together
with the continuous media server (5.1.5), and actually processes operations on
