Video: 5G Broadcast Trials using FeMBMS

Posted on by Russell Trafford-Jones

5G was certainly a topic of discussion whilst people are hunting for use cases and trying to understand how it will actually work. 5G case studies have started to emerge, not least the Roland Garros example plus more in this 5G special from Digital TV Europe

In this talk we hear about the 5G TODAY project’s unique field trial for 5G Broadcasting. The project partners Bavarian Broadcasting Corporation (Bayerischer Rundfunk, BR), the Broadcast Technology Institute IRT, Kathrein, Rohde & Schwarz as well as Telefonica Germany who are are jointly testing broadcasting options for future 5G technology. The new large-area 5G field trial in the Bavarian alpine region is covered by two high-performance transmitters located in Ismaning and on the top of the Wendelstein mountain. Both operate with 100 kilowatts effective output power (technically: ERP). With the help of the high transmission towers and the high power of the transmitters (High-Power-High-Tower-Concept, HPHT), the large-area broadcasting of TV programs can be tested based on the new broadcast mode FeMBMS (Further evolved Multimedia Broadcast Multicast Service). The FeMBMS broadcast mode allows far-reaching and inexpensive distribution of popular content across large coverage areas with a radius of up to 60 kilometres.

Watch now to see how FeMBMS is being used and the results achieved.

Speakers

Thomas Janner Thomas Janner
Director of Product Management Transmitter Systems
Rohde & Schwarz
Thomas Schierbaum Thomas Schierbaum
PR Manager,
IRT
Christian Sautter Christian Sautter
Senior Director R&D Product Management,
Kathrein

Video: ST 2110 Test and Measurement Super Session

Posted on by Adam K

This IP Showcase super session consists of six presentation from six different vendors which focus on specific aspects of test or measurement that is unique for ST 2110 environment. It is worth noting that these are technology presentations, not product presentations.

The session is led by Willem Vermost from EBU. He describes what kind of issues we need to solve in a SMPTE ST 2110 environment in terms of testing and monitoring. He speaks about PTP accuracy, traffic shaping (SMPTE ST 2110-21) and SMPTE ST 2022-7 redundancy.

Next, Michael Waidson from Tektronix focuses on Precision Time Protocol (PTP) which is a cornerstone of synchronisation of IP media networks. He walks us through Best Master Clock algorithm, boundary and transparent clocks plus PTP fault finding. (You might also want to watch the Monitoring and Measuring IP Media Networks presentation by Michael which we recently published on The Broadcast Knowledge.)

Furthermore, Jack Douglass from PacketStorm talks about ST 2110-21 traffic shaping measurements. He also shows how to use network emulation tools for testing ST 2022-7 link redundancy (the same data is sent through two separate paths of network emulation that are synchronised together, then burst loss are generated using RTP sequence number, with the least important bit different on both paths).

The next speaker is Ståle Kristoffersen from Bridge Technologies. He focuses on live performance monitoring in a ST 2110 network – does the signal make sense? (IP headers, RTP headers, ST 2110-20/30/40 essences), do all of the signals arrive? (packet loss, monitoring packet loss on 2022-7 links), does the signal arrive on time? (late can be just as bad as a packet loss) amongst others.

Moreover, Kevin Salvidge from Leader shows the differences in monitoring in an SDI and an all-IP facility. He compares single essence per BNC with multiple essences per fibre, synchronous and asynchronous transport and causes for errors (cable loss and impedance mismatch vs error packet loss and network overload). He also emphasises the need for accuracy of PTP and explains how to measure it.

Last but not least, Adam Schadle from Video Clarity walk us through video / audio performance and quality methods. He shows how to use picture and sound quality objective tests to understand network behaviour.

The presentations are followed by Q&A session.

See the slides here.

Watch now!

Speakers

Willem Vermost Willem Vermost
Senior IP Media Technology Architect
EBU
Michael Waidson
Application Engineer
Tektronix
Jack Douglass
VP Marketing and Business Development
PacketStorm
Ståle Kristoffersen Ståle Kristoffersen
Lead Software Developer
Bridge Technologies
Kevin Salvidge
European Regional Development Manager
Leader
Adam Schadle
Vice President
Video Clarity

Video: General Codec Update

Posted on by Russell Trafford-Jones

People are relentlessly trying to find better ways to compress video. For some, better means lower bitrate. For some, this means faster processing. But for everyone, this means new codecs and new standards.

Andreas Rossholm from Eyevinn Technology gives us the ‘lay of the land’ and explains the factors looming large in the minds of those who are developing the new standards.

Perceived Quality (QoE) is influenced by many factors, so is a moveable, translatable feast when it comes to pinning it down to a number. Andreas also talks about objective and subjective measurements are both valuable and so very different. We also see the advance from 2017 into 2018 of HEVC and AV1 with a look at the things to look out for when you hear about the results of a test. This will help you work out whether the results apply to you, or whether you need to do your own.

Andreas does a great job of explaining the types of things codecs are trying to minimise and the tools they’re using to succeed.

With a final look to the future and how codecs like AV1 and HEVC will perform, Andreas reminds us it’s not just about the codecs but also about how you use them; per-title parameters or per-shot?

Watch Andreas’ Talk!

Free Registration Required

Speaker

Andreas Rossholm Andreas Rossholm
Media Specialist Consultant,
Eyevinn Technology

Video: VVC, EVC, LCEVC, WTF? – An update on the next hot codecs from MPEG

Posted on by Russell Trafford-Jones


The next-gen codecs are on their way: VVC, EVC, LCEVC but, given we’re still getting AV1 up and running, why do we need them and when will they be ready?

MPEG are working hard on 3 new video codecs, one in conjunction with the ITU, so Christian Feldmann from Bitmovin is here to explain what each does, the target market, whether it will cost money and when the standard will be finalised.

VVC – Versatile Video Codec – is a fully featured video codec being worked on as a successor to H.265, indeed the ITU call it H.266. MPEG call it MPEG-I Part 3. Christian explains the ways this codec is outperforming its peers including a flexible block partitioning system, motion prediction which can overlap neighbouring macroblocks and triangle prediction to name but three.

EVC is the Essential Video Codec which, intriguingly, offers a baseline which is free to use and a main profile which requires licences. The thinking here is that if you have licensing issues, you have the option of just turning off that feature which could five you extra leverage in patent discussions.

Finally, LCEVC – the Low Complexity Essential Video Codec allows for enhancement layers to be added on top of existing bitstreams. This can allow UHD to be used where only HD was possible before due to being able to share decoding between the ASIC and CPU, for example.

These all have different use cases which Christian explains well, plus he brings some test results along showing the percentage improvement over today’s HEVC encoding.

Watch now!
Speaker

Christian Feldmann Christian Feldmann
Codec Engineer,
Bitmovin