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PROmax Ranger Neo Plus Manual

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Chapter 7: OTT 151 June 2022
7 OTT
OTT or Over The Top refers to video, audio and other media services delivered
directly to the user over the Internet, for Video on Demand or Live broadcasting.
There are different standards being used to deliver OTT services. MPEG-DASH
and HLS are the most popular. All OTT protocols address the fundamental
problem of poor viewer tolerance to disruption or buffering during video play out
caused by the naturally changing network conditions of the Internet
To solve these problems, the OTT servers provide the same audio / video
fragments in different resolutions and bitrates so the user can select one or the
other depending on the network conditions. This helps to decrease the annoying
effect of buffering.
To know server’s availability is important, so the client media player can select
the right quality at a certain time. This information is contained in the HLS
MANIFEST file or in the MPEG-DASH MPD file (Media Presentation Description).
The meter can retrieve and display the information of these files and download
the selected content by segments and also it shows the download bitrate in a
graph.
1 Connect the OTT signal to the meter through the IP CTRL port.
2 Press "Settings" , and select OTT on "Signal Source".
3 First screen OTT 1/2 shows the log with some system messages. Press again
on to switch to screen OTT 2/2. This screen shows segments loading in
sequence.
4 Press URL . It shows a list of available URL. Select one URL. It also allows
the user to import a URL file from a USB pendrive by pressing “Import
from USB” (see next section).
5 The meter downloads the file (MANIFEST or MPD) from the URL. This file
should contain a description of all content available on the server.
7.1 Introduction
OTT operation and analysis
S
C
A
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7.2 Operation
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