Cisco Systems 2200 Manual Do Utilizador
2-3
User Guide for Cisco Digital Media Encoder 2200
OL-17938-01
Chapter 2 Getting to Know the Cisco Digital Media Encoder 2200
Introduction
Simple Guide to Streaming Audio and Video Types
Cisco Digital Media Encoder 2200 can create several different types of audio and video streams.
Although all are a type of IP video format, each has certain properties that make it more attuned to a
specific streaming video application. Cisco Digital Media Encoder 2200 was designed for creating video
content in a reduced resolution to allow the content to be streamed across the Internet to be played back
on a computer or a handheld mobile device.
Although all are a type of IP video format, each has certain properties that make it more attuned to a
specific streaming video application. Cisco Digital Media Encoder 2200 was designed for creating video
content in a reduced resolution to allow the content to be streamed across the Internet to be played back
on a computer or a handheld mobile device.
uses. All of these formats can be used for many different applications.
In choosing the right streaming format for your needs, you should first consider the audience to which
you will be sending your content. What is the most common player that they will have available to watch
your content? This will determine the format of the stream that you will create for your audience.
you will be sending your content. What is the most common player that they will have available to watch
your content? This will determine the format of the stream that you will create for your audience.
To determine the data rate that you will stream your content, you will need to determine the IP bandwidth
to which your audience has access. For example, if the access method uses an ISDN connection or less,
then you would stream your video and/or audio at a low data rate such as QCIF at 56kbps. If the access
is much greater like a cable modem or DSL connection, then you can provide a higher quality stream at
full resolution at 2 Mbps.
to which your audience has access. For example, if the access method uses an ISDN connection or less,
then you would stream your video and/or audio at a low data rate such as QCIF at 56kbps. If the access
is much greater like a cable modem or DSL connection, then you can provide a higher quality stream at
full resolution at 2 Mbps.
Cisco Digital Media Encoder 2200 provides preconfigured encoding profiles for different bandwidth
connections. The profiles loaded will depend upon how you configure your encoder on its initial startup.
connections. The profiles loaded will depend upon how you configure your encoder on its initial startup.
Tutorial
There are two interfaces for operation of your Cisco Digital Media Encoder 2200: the encoder front
panel LCD display and buttons and the Niagara SCX Web Interface. This tutorial is divided into the
following two parts:
panel LCD display and buttons and the Niagara SCX Web Interface. This tutorial is divided into the
following two parts:
1.
2.
Note
To access the Niagara SCX Web Interface or the Niagara SCX Encoder Explorer Software, you will
need a computer with a current web browser installed that has an IP connection to the encoder via a local
network on which both the encoder and the computer reside or through a direct IP connection by using
the included RJ-45 cable to connect directly from the encoder to a computer.
need a computer with a current web browser installed that has an IP connection to the encoder via a local
network on which both the encoder and the computer reside or through a direct IP connection by using
the included RJ-45 cable to connect directly from the encoder to a computer.
Table 2-1
IP Video Compression for Streaming in Full Resolution or Lower
Format
Description
Windows Media
®
Streaming Internet video and mobile devices
RealVideo
®
/Helix
®
Streaming Internet video and mobile devices
MPEG-4
Handheld devices and mobile phones