Video: Open Source Streaming

Open source software can be found powering streaming solutions everywhere. Veterans of the industry on this panel at Streaming Media West, give us their views on how to successfully use open source in on-air projects whilst minimising risk.

The Streaming Video Alliance’s Jason Thibeault starts by finding out how much the panelists and their companies use open source in their work and expands upon that to ask how much the support model matters. After all, some projects have paid support but based on free software whereas others have free community-provided support. The feeling is that it really depends on the community; is it large and is it active? Not least of the considerations is that, in a corporate setting, if the community is quick to accuse, is it right to ask your staff to go through layers of ‘your a newbie’ and other types of pushback each time they need to get an answer?

Another key question is whether we give should back to the open source community and, if so, how. The panels discusses the difficulties in contributing code but also covers the importance of other ways of contributing – particularly when the maintainer is one individual. Contribution of money is an obvious, but often forgotten way to help but writing documentation is also really helpful as is contributing on the support forums. This all makes for a vibrant community and increases the chances that other companies will adopt the project into their workflows…which then makes the community all the stronger.

With turn-key proprietary solutions ready to to be deployed, Jason asks whether open source actually saves money on the occasions that you can, indeed, find a proprietary solution that fits your requirements.

Lastly, the panel talks about the difficulty in balancing adherence to the standards compared with the speed at which open source communities can move. They can easily deliver the full extent of the standard to date and then move on to fixing the remaining problems so far not addressed by the developing standard. Whilst this is good, they risk implementing in ways which may cause issues in the future when the standard finally catches up.

The panel session finishes with questions from the audience.

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Speakers

Steve Heffernan Steve Heffernan
Head of Product
Mux
Yuriy Reznik Yuriy Reznik
Head of Research,
Brightcove
Rob Dillon Rob Dillon
Dillon Media Ventures
Rema Morgan-Aluko Rema Morgan-Aluko
Engineering Dango
FandangoNOW
Jason Thibeault Jason Thibeault
Executive Director,
Streaming Video Alliance

Video: ABR Streaming and CDN Performance

Hot on the heel’s of yesterday’s video all about Adaptive Bitrate (ABR) streaming we have research engineer Yuriy Reznik from Brightcove looking at the subject in detail. We outlined the use of ABR yesterday showing how it is fundamental to online streaming.

Brightcove, an online video hosting platform with its own video player, has a lot of experience of delivery over the CDN. We saw yesterday the principles that the player, and to an extent the server, can use to deal with changing network (and to an extent changing client CPU usage) by going up and down through the ABR ladder. However this talk focusses on how the CDN in the middle complicates matters as it tries its best to get the right chunks in the right place at the right time.

How often are there ‘cache misses’ where the right file isn’t already in place? And how can you predict what’s necessary?

Yuriy even goes in to detail about how to work out when HEVC deployment makes sense for you. After all, even if you do deploy HEVC – do you need to do it for all assets? And if you do only deploy for some assets, how do you know which? Also, when does it make sense to deploy CMAF? In this talk, we hear the answers.

The slides for this talk

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Speaker

Yuriy Reznik Yuriy Reznik
VP, Research
Brightcove