Video

[Video]: Video Compression 101

Posted on by Russell Trafford-Jones

Jigsaw24’s Chief Engineer, Phil Crawley, explains video codecs from the fundamentals up. Codecs touch every part of the broadcast chain and are a vital part of the industry as much as of day to day life. So it’s worth brushing up or learning the basics to help you to fully understand what’s happening with today’s codecs, whether that be HEVC, AV1, JPEG XS or trusty MPEG4.

Phil covers:

  • Compressed and Uncompressed video & codecs
  • DCT Principles
  • Intra/Inter-frame compression
  • Acquisition Vs Editing Vs. Transmission codecs
  • Measuring compression effects
  • Codecs Vs File Formats & wrappers
  • Compression concatenation
  • MPEG4, H.264(AVC) & H.265(HEVC)

Watch now!

Want to take things further? Check out Harmonic’s Next-Gen Compression Techniques

Speaker

Phil Crawley Phil Crawley
Chief Engineer,
Jigsaw24

Video: AMWA NMOS IS-04 and IS-05 Scalability and Performance

Posted on by Russell Trafford-Jones

AMWA’s discovery and registration protocols IS-04 and IS-05 play a big role in making IP systems usable, allowing the system to easily identify new kit when it’s plugged in and understand its capabilities. However, deploying such systems at scale should give anyone pause for thought – how scalable are they? How does the system recover after a network outage? Clearly we wouldn’t want the system to be brought down by the administrative burden.

Rob Porter, from Sony Europe Ltd., has done the research and presents it here at the VSF’s IP Showcase at the 2018 IBC.

Rob gives a brief overview of the two specifications, describing their APIs and the open source nature of them. He then goes on to explain how he emulated this large number of devices and what he found.

Finally, Rob wraps up the session by explaining how he optimised network-loss recovery times and summarises best practices.

Watch now!

Speaker

Rob Porter Rob Porter
Project Manager – Advanced Technology Team,
Sony Europe Limited

Video: The Audio Parts of ST 2110 Explained

Posted on by Russell Trafford-Jones

At the IBC 2018 IP Showcase, Andreas Hildebrand explains how AES67 and 2110 work together and how technologies like Dante, RAVENNA and Livewire fit in.

While there are lots of resources for working with 2110 video, but this is one of the few which tackles Audio. Andreas covers one of the ‘gotchas’ in 2110 – the compatability requirements for AES within the standard. He then looks at the timing requirements of 2110 and how they differ to those of AES67 and finally discusses AES3 while explaining the ST 2110-31 standard.

Presenter

Andreas Hildebrand Andreas Hildebrand
Senior Product Manager and Evangelist for the RAVENNA technology developed by ALC NetworX, Germany,

Video: Live Streaming: Dead Air is Not an Option

Posted on by Russell Trafford-Jones

Stuart Kurkowski Tells us about SCTE 224 which allows control of who watches live streams, where and on which devices. This technology is key to implementing contractual boundaries for streamed material but also facilitated

The talk covers:
• What restrictions are found in the market today
• What SCTE 224 is
• What data is in a SCTE 224 message
• How it provides the same control satellite operators have for IP streaming
• Ensuring The EPG on a device shows what will be available and not what will be blocked or swapped
• Extending this to Ad breaks

Watch now!

Speaker

Stuart Kurkowski Stuart Kurkowski
Distinguished Engineer,
Comcast Technology Solutions