which codec for webrtc?

Which Codec for WebRTC?

Tsahi Levent-LeviDirector of Business Solutions, PBG - PSM

October 2012

Information Security Level 2 – Sensitive© 2012 – Proprietary and Confidential Information of Amdocs1

“Audio and Video Codecs Will

Never Converge”

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Looks familiar?

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There are a few more…

http://www.wordle.net/

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Skipping to video: Which codec is best?

H.261 H.263 H.264 H.265

Complexity

H.261 H.263 H.264 H.265

Bit rate

Compression isn’t the only measurement

Technologyvs

Business

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Technology

Complexity

ResilienceLatency

Bitrate

Qua

lity

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Business (and politics…)Business

Hardware availabilityInteroperability

Intellectual propertyEcosystem

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Justin Uberti, Google

“Given the ability to deliver a royalty-free platform with no compromises on quality, we see no reason to include mandatory royalty-bearing codecs.”

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Bo Burman, Ericsson

“H.264 support is a requirement in some regulatory frameworks, such as emergency services […]

AMR narrow-band is playing a key role in mobile telephony and has a huge footprint.”

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Bo Burman, Ericsson

“We would […] like to recommend […] AMR-WB and EVS, since we expect them to be available in mobile chipsets.”

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Mandyam Giridhar, Qualcomm

“G.711 is universal, unencumbered, and widely implemented. […]

A mandate for Opus will limit initial RTCWeb clients to use software-based  codecs […]”

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WebRTC Mandatory Codecs is NOT

about Technology

The End Game

G.711and

Opus

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VP8or

H.264

Information Security Level 2 – Sensitive© 2012 – Proprietary and Confidential Information of Amdocs15

Browsers will differ in the optional codecs they will support

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Should WebRTC ignore “legacy” systems?

“Legacy” Systems and Codecs

Opus anyone?

Transcoding Will be Needed…

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Transcoding Will be Needed…

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Packet loss resiliency

Trusted third party

ExpensiveReduces quality

Adds latency

Information Security Level 2 – Sensitive© 2012 – Proprietary and Confidential Information of Amdocs20

There Are No Easy Answers

Image credits

filippo_jean

m-louis  x6e38 casey.marshall

Sam Howzit wilhei55 suzyq212 kowitz

Parvin AMagill seyed mostafa zamaniSamuel M. Livingston apliniste

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Thank You!

Tsahi Levent-LeviDirector of Business Solutions, PBG – PSM

tsahil@amdocs.comhttp://bloggeek.me