Oracle Video server, Manual

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Putting It Together: The Video Round Trip
1-16 Introducing Oracle Video Server
Figure 1–4 A basic video round trip
Scenario 1: Broadband Environment
The broadband environment is characterized by delivery of large amounts of
digital video data at very high rates to dedicated set-top devices that receive and
decode the digital video. Video is typically shown full-screen and full-motion.
Figure 1–5 shows an example of a network configuration using Asynchronous
Transfer Mode (ATM) in a broadband delivery environment. The network itself has
been somewhat simplified, to show a typical configuration; actual broadband
deployment might involve many more variables in terms of particular hardware
used, the number of neighborhood hubs, and the type and number of ATM
multiplexers.
Tier 1: Client
■
Network Computer
■
Personal Computer
N
ETWORK
:
ATM
S
WITCHED
E
THERNET
UDP/TCP
HTTP
Network:
This portion of
the video round trip varies
most, and is the primary
determinant of the video
delivery environment.
Tier 2:
OVS acts
as the Application
Server Tier.
Tier 3:
An
optional
dedicated
database server
stores metadata
(administrative
information about
content files).
N
ETWORK
:
ATM
Switched
Ethernet
UDP/TCP
■
Set-top box