Demuxed

Video: CHUNKY MONKEY – using chunked-encoded chunked-transferred CMAF to bring low latency live to very large scale audiences

Posted on by Russell Trafford-Jones

Will Law from Akamai proves his chunky credentials by telling us how to achieve very low-latency streaming in his talk at Demuxed 2018.

In the jungle of solutions for low latency live streaming, there are many current options ranging from WebRTC, to proprietary UDP protocols to standard segmented media with ever-shortening segments. This session highlights one of these – chunked-encoded chunked-transferred CMAF – as an optimal and practical confluence of both reach and performance. On the technical side, we’ll investigate the underlying technology, the latency regimes possible, compatibility with legacy players, cachability on delivery networks and player behaviour requirements. Including live demonstrations of several streams on a production network. This talk looks at the standards from DVB and MPEG DASH as well as CDN support. As a sweetener, Will points you at open source code on both the encoder and player side for doing this all yourself.

Speaker:

Will Law Will Law
Chief Architect, Media Cloud Engineering
Akamai Technologies

Video [OTT]: Content delivery sucks, and what you can do about it

Posted on by Russell Trafford-Jones

Watch the video
Practical advice on delivering video content live or over OTT.
By watching this video you’ll understand the pros and cons of all the elements needed. Matt Ward from Mux starts with a list of ‘what we need’ and goes through each one using personal experience to filter through the many options out there which can feel overwhelming. What actually are all of those options and how do you decide what to actually do? This talk will go into the details of how to make CDN decisions and actually improve the things that you once thought were out of your control.

Topics:
• Getting something that is cheap & works
• Reliability
• Security
• Token Authentication & Signing
• Billing
• Real world examples
• Multi-CDN

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Video: Streaming at 250 kbps – raise your expectations

Posted on by Russell Trafford-Jones


Megha Manohara discusses Netflix’s ongoing efforts to reduce the bitrate of movies whilst maintaining their enjoyability showing their success right down to 250kbps.

As a Senior Software Engineering on Video Algorithms, Megha’s talk focuses on the research and implementation challenges of Dynamic optimizer – an innovative shot-based encoding tool that raises the perceptual quality of streams at bitrates as low as 250kbps. Visiting VMAF, PSNR and other metrics on the way, this talk gives great ideas on reducing bitrate and measuring success.

See also, her article on per-shot encoding.

Watch now!