In Broadcast - August 2019 - 56

56

www.inbroadcast.com | Vol: 9 - Issue 7 | August 2019

InFile

How Great Is Your
OTT Service?
Anupama Anantharaman, Vice President, Product Marketing
at Interra Systems discusses ensuring accurate and reliable
OTT video Streams...
Figure 1. Illustration of OTT workflow
compared with linear broadcast

O

TT video consumption is rising
steadily around the world.
According to a ResearchAndMarkets
report, global pay-TV and SVOD
subscriptions will reach 1.877 billion
by 2023, while SVOD subscriptions will
more than double between 2017 and
2023, and traditional pay-TV will only
add 94 million subscribers. On the live
OTT side, sport is a key driver.
Consumers have a vast amount of
choice when it comes to choosing a
video service provider. If the content
they are watching isn't high quality
and error-free, they can easily switch
to another offering. This article will
explain why there is a fundamental
need to monitor both VOD and live OTT
services, including the challenges with
delivering video streaming.
The Difficulty of Streaming
There are a number of challenges that
broadcasters and service providers
face in delivering high-quality,
error-free, OTT content. One issue
is complexity and volume. OTT is
significantly more complex than linear
broadcast workflows. The OTT world is
fragmented and constantly changing.
To cater to the wide gamut of devices
with multiple screen sizes, OTT content
must be transcoded to multiple
delivery formats and encrypted with
various DRM protection schemes.
With so many variations to maintain
- and new ones coming into play all
the time - broadcasters and service
providers are dealing with a massive
amount of OTT content, which
increases the possibility of errors
occurring.

Another challenge is bandwidth
fluctuation. Content quality and
bandwidth is constantly changing
based on network congestion. During
live events, for example, when
viewership spikes, scalability can be an
issue. Creating ABR streams requires
a lot of planning, more infrastructure,
and increased delivery costs.
Moreover, the OTT environment
is always in flux. Changing video
production and delivery approaches
add to the chaos. There are elements
in the OTT ecosystem (i.e., origin
servers, CDNs, edge servers) that
simply don't exist in a linear broadcast
workflow. With so many variables
involved in the content delivery
process, it becomes more difficult to
pinpoint quality-related errors.
There is also a lack of control with
OTT. Compared with traditional video
distribution methods, which operate
under a dedicated and controlled
network, OTT video is delivered over
the Internet, which is an unmanaged
network. Lack of control over the
delivery channel makes it more
challenging for service providers to
assure content quality once it has left

their network.
Finally, live issues must be fixed in
real-time, which can be a challenge.
During a live event, errors can happen
with the audio or video stream at any
point of the workflow, from signal
reception in the OB van to transcoding,
encryption,
packaging,
and
distribution. If the video stream stalls
or stops during a live telecast, viewers
can completely miss an important
moment in a live match forever.
Therefore, in the world of live OTT,
content owners and service providers
must solve video and service issues in
real-time, or they can lose viewers.
Why End-to-End QC and
Monitoring Matters
Service providers are often in the dark
about what's happening across an
entire service, so they don't know their
apps are crashing, or why, until the
complaints begin rolling in. As a result,
they end up being reactive instead
of proactive. This type of service
assurance approach cannot exist in an
OTT environment.
Instead of just monitoring during one
stage of the OTT workflow, as many

Figure 2. End-to-end Centralised QC & Monitoring

solutions do, end-to-end OTT QC and
monitoring addresses quality issues
from the start by performing QC
checks and monitoring from ingest to
transcoding, packaging, origin server,
CDN, and delivery.
Taking a holistic approach to total
service assurance, operators can
better understand what is happening
with their OTT workflow. The QC
and monitoring solution can be
parameterised to align with different
monitoring needs at different stages,
with customisable alerts, reports,
and troubleshooting tools. Having
a QC and monitoring solution that
can be deployed on the cloud and
on-premises will provide increased
flexibility.
How It Helps
One of the major benefits of having
a central view of service assurance
is that corrections can be made on
the fly. An end-to-end solution also
ensures issue isolation. In a typical
content chain for OTT delivery, each
workflow step might happen in a
different location, making it difficult
to pinpoint the source of the error. The
monitoring system provides intelligent
data that indicates where the problem
is happening and what corrective
action needs to be taken.
A good monitoring solution checks for
issues at all stages of the workflow,
including encryption, and integrates
with
all
available
encryption
technologies to ensure content is
decoded properly.
While traditional monitoring systems
are constrained by the capacity of the
hardware, a purely software-based
monitoring solution that is clouddeployable will ensure that service
providers can quickly make technology
upgrades and address changing
requirements.
Conclusion
With the explosion of OTT video,
broadcasters and service providers
have a huge opportunity to monetise
content but the OTT quality of
experience must be flawless. The
need for monitoring tools that are
architecturally versatile in order to
accommodate this environment is now
an essential part of OTT. By removing
errors from OTT content throughout
the entire workflow, end-to-end QC
and monitoring helps broadcasters and
service providers deliver a reliable,
consistent QoS for viewers on every
screen, while opening up the potential
for more monetisation, maintaining
and raising subscriber numbers, and
increasing revenues for a better ROI.


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In Broadcast - August 2019

Table of Contents for the Digital Edition of In Broadcast - August 2019

Contents
In Broadcast - August 2019 - Intro
In Broadcast - August 2019 - Cover1
In Broadcast - August 2019 - Cover2
In Broadcast - August 2019 - Contents
In Broadcast - August 2019 - 4
In Broadcast - August 2019 - 5
In Broadcast - August 2019 - 6
In Broadcast - August 2019 - 7
In Broadcast - August 2019 - 8
In Broadcast - August 2019 - 9
In Broadcast - August 2019 - 10
In Broadcast - August 2019 - 11
In Broadcast - August 2019 - 12
In Broadcast - August 2019 - 13
In Broadcast - August 2019 - 14
In Broadcast - August 2019 - 15
In Broadcast - August 2019 - 16
In Broadcast - August 2019 - 17
In Broadcast - August 2019 - 18
In Broadcast - August 2019 - 19
In Broadcast - August 2019 - 20
In Broadcast - August 2019 - 21
In Broadcast - August 2019 - 22
In Broadcast - August 2019 - 23
In Broadcast - August 2019 - 24
In Broadcast - August 2019 - 25
In Broadcast - August 2019 - 26
In Broadcast - August 2019 - 27
In Broadcast - August 2019 - 28
In Broadcast - August 2019 - 29
In Broadcast - August 2019 - 30
In Broadcast - August 2019 - 31
In Broadcast - August 2019 - 32
In Broadcast - August 2019 - 33
In Broadcast - August 2019 - 34
In Broadcast - August 2019 - 35
In Broadcast - August 2019 - 36
In Broadcast - August 2019 - 37
In Broadcast - August 2019 - 38
In Broadcast - August 2019 - 39
In Broadcast - August 2019 - 40
In Broadcast - August 2019 - 41
In Broadcast - August 2019 - 42
In Broadcast - August 2019 - 43
In Broadcast - August 2019 - 44
In Broadcast - August 2019 - 45
In Broadcast - August 2019 - 46
In Broadcast - August 2019 - 47
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In Broadcast - August 2019 - 49
In Broadcast - August 2019 - 50
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In Broadcast - August 2019 - 60
In Broadcast - August 2019 - 61
In Broadcast - August 2019 - 62
In Broadcast - August 2019 - Cover3
In Broadcast - August 2019 - Cover4
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201704
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2017
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201703
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201701
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_INREVIEW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201612
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201611
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOWNYexpo
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_20110708_DEMO
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201610
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_inshowguide2016
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http://europe.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC03
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201605
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_NABSHOW2016
http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201604
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_cabsat2016
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https://www.nxtbook.com/nxtbooks/lesommet/inbroadcast_APAC02
https://www.nxtbook.com/nxteu/lesommet/inbroadcast_201512
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https://www.nxtbook.com/nxteu/lesommet/inbroadcast_CCW15expo
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