Extra Information

Appendix A: An Introduction to Streaming Media
98 ViewCast
Each category has its unique set of requirements that also dictate different user interfaces,
functionality and experiences. The Niagara encoders deliver live video capture, processing, and
delivery.
Figure 155 illustrates the video path starting with the sou
rce, like a camera or video player. This
source goes through the Niagara encoders, to the server, across an IP network, to a software player
and displays on a monitor for audience viewing.
Figure 155. Video Streaming Example
Guide to Streaming Audio and Video
Types
Niagara encoders can create several different types of audio and video streams. Although all are a
type of IP video format, each retains properties to make it more suitable to a specific streaming video
application. Niagara encoders create video content in a reduced resolution. This allows users to
stream the content across the Internet and play it back on a computer or a handheld mobile device.
Figure 156 lists all formats supported by Niagara encoders with suggested application uses. You can
use all of t
hese formats for many different applications.
Figure 156. IP Video Compression for Streaming in Full & Lower Resolutions
W
indows Media
®
Streaming Internet video and mobile devices
RealVideo
®
/Helix
®
Streaming Internet video and mobile devices
MPEG-4 Handheld devices and mobile phones (available with
Niagara SCX Pro only)