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Copyright © NTT Communications Corporation. All rights reserved.
RTC Conference Korea 2018 on November 1st, 2018
Kensaku Komatsu
NTT Communications
Media Processing with
Serverless Architecture
Copyright © NTT Communications Corporation. All rights reserved.
Kensaku Komatsu
Technical manager of ECL SkyWay
Web application evangelist
at NTT Communications
in Silicon valley office
@komasshu
kensakukomatsu
Copyright © NTT Communications Corporation. All rights reserved.
Main Idea of the tech talk today
3
A practice of Serverless Architecture
for Media Processing using WebRTC.
Copyright © NTT Communications Corporation. All rights reserved.
AI / IoT
Copyright © NTT Communications Corporation. All rights reserved.
Agenda of the talk
5
• Current business in WebRTC
• WebRTC GW – enabler for AI/IoT
• Media processing with Serverless architecture
Copyright © NTT Communications Corporation. All rights reserved.
Agenda of the talk
6
• Current business in WebRTC
• WebRTC GW – enabler for AI/IoT
• Media processing with Serverless architecture
Copyright © NTT Communications Corporation. All rights reserved.
ECL SkyWay in nutshell
7
https://webrtc.ecl.ntt.com/en/
Copyright © NTT Communications Corporation. All rights reserved.
Service model
8
P2P / SFU
connectivity
Client SDK
Copyright © NTT Communications Corporation. All rights reserved.
Customer journey : rarejob ( online education )
9https://japan.cnet.com/article/35116616/
Copyright © NTT Communications Corporation. All rights reserved.
Use cases
10
• Online Education
• Online healthcare
• Field engineer support
• …
Copyright © NTT Communications Corporation. All rights reserved.
Wish from our customer
11
• Recording
• Voice recognition, translation
• Video detection, recognition
• Emotion detection
• Low latency live streaming
• VR / AR / Avatar
• …
Copyright © NTT Communications Corporation. All rights reserved.
• Recording
• Voice recognition, translation
• Video detection, recognition
• Emotion detection
• Avatar
• …
Question
12
How do we support these needs
from our customer?
Copyright © NTT Communications Corporation. All rights reserved.
Agenda of the talk
13
• Current business in WebRTC
• WebRTC GW – enabler for AI/IoT
• Media processing with Serverless architecture
Copyright © NTT Communications Corporation. All rights reserved.
Our answer
14
Use WebRTC GW
for server side media processing
Copyright © NTT Communications Corporation. All rights reserved.
What’s SkyWay WebRTC GW
15
• Protocol gateway of WebRTC
• Enabler for server side media processing
• Can get RTP media stream from client
• Controllable with REST API
• Easy to connect from skyway client
• Supported platform : Linux and Windows
WebRTC
GW
Processing
engineRTP
Copyright © NTT Communications Corporation. All rights reserved. 16
https://github.com/skyway/skyway-webrtc-gateway
Copyright © NTT Communications Corporation. All rights reserved.
Use case 1 : server side recording
17
• WebRTC GW … stream out media data as RTP
streaming
• Bind decoder / encoder when needed
• POST media data to cloud storage or else
WebRTC
GW
Decoder
/ EncoderRTP
Storage
POST
Copyright © NTT Communications Corporation. All rights reserved.
Use case 2 : voice recognition
18
• WebRTC GW … stream out media data as RTP
streaming
• Bind decoder to get raw PCM data stream
• POST voice data to Voice recognition PaaS
• POST recognition result to cloud database.
WebRTC
GW
Decoder
RTP
DB
POST
Voice
recognition
Copyright © NTT Communications Corporation. All rights reserved.
• WebRTC GW … stream out media data as RTP
streaming
• Bind decoder to get raw PCM data stream
• POST voice data to Voice recognition PaaS
• POST recognition result to cloud database.
Question
19
How do we manage these service
for each scenario?
Copyright © NTT Communications Corporation. All rights reserved.
Agenda of the talk
20
• Current business in WebRTC
• WebRTC GW – enabler for AI/IoT
• Media processing with Serverless architecture
Copyright © NTT Communications Corporation. All rights reserved.
Base idea to manage server side processing
21
• Apply micro-service model for each media
processing scenario.
• Agility, Flexibility and scalability
21
WebRTC
GW
Micro
Service
#1
RTP
Micro
Service #2
Micro
Service #3
Copyright © NTT Communications Corporation. All rights reserved.
Issues, we faced with
22
• We found that…
• Sometime, media processing engine makes
state issue.
• Scalability issue for each components
• Especially media encoder and recognition
process requires high resource usage.
• Have to allocate much resources for above
micro servers.
Copyright © NTT Communications Corporation. All rights reserved.
Serverless architecture
23
• AKA ”Function as a service”
• Event base execution model
• Each function will be executed and killed in
each session cycle
• Easy to get scalability
• No-need to care about long-term state issue
23
spawn
Copyright © NTT Communications Corporation. All rights reserved.
Our challenge
24
• Apply serverless architecture into server side
media processing scenario.
• Build serverless system from scratch on top of
docker container
• Current FaaS is focused to only RPC
GW Decoder recognition
GW Decoder recognition
API GW orchestrator
spawn
Copyright © NTT Communications Corporation. All rights reserved.
Demo
25
Copyright © NTT Communications Corporation. All rights reserved.
Pros and Cons
26
• Pros
• Flexibility, Scalability and Agility
• Do not need to care about execution time
than short lived functions
• Easy to re-use each components
• Each scenario is well isolated, e.g. security
perspective
• Cons
• Need to have consolidate monitoring
• Controlling each components while set
upping orchestration is difficult
• Several timing issue will happen, especially
video streaming.
Copyright © NTT Communications Corporation. All rights reserved.
Summary
27
• Current business in WebRTC
• It is used for bunch of use cases
• Media processing is needed
• WebRTC GW – enabler for AI/IoT
• Protocol GW for WebRTC
• Can be orchestrated with media processing
engines
• Media processing with Serverless architecture
• Flexibility, scalability and agility
• Well isolated and security
• Need to have more practice and
management system.
Copyright © NTT Communications Corporation. All rights reserved.
Thanks!!
@komasshu
kensakukomatsu

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Media processing with serverless architecture

  • 1. Copyright © NTT Communications Corporation. All rights reserved. RTC Conference Korea 2018 on November 1st, 2018 Kensaku Komatsu NTT Communications Media Processing with Serverless Architecture
  • 2. Copyright © NTT Communications Corporation. All rights reserved. Kensaku Komatsu Technical manager of ECL SkyWay Web application evangelist at NTT Communications in Silicon valley office @komasshu kensakukomatsu
  • 3. Copyright © NTT Communications Corporation. All rights reserved. Main Idea of the tech talk today 3 A practice of Serverless Architecture for Media Processing using WebRTC.
  • 4. Copyright © NTT Communications Corporation. All rights reserved. AI / IoT
  • 5. Copyright © NTT Communications Corporation. All rights reserved. Agenda of the talk 5 • Current business in WebRTC • WebRTC GW – enabler for AI/IoT • Media processing with Serverless architecture
  • 6. Copyright © NTT Communications Corporation. All rights reserved. Agenda of the talk 6 • Current business in WebRTC • WebRTC GW – enabler for AI/IoT • Media processing with Serverless architecture
  • 7. Copyright © NTT Communications Corporation. All rights reserved. ECL SkyWay in nutshell 7 https://webrtc.ecl.ntt.com/en/
  • 8. Copyright © NTT Communications Corporation. All rights reserved. Service model 8 P2P / SFU connectivity Client SDK
  • 9. Copyright © NTT Communications Corporation. All rights reserved. Customer journey : rarejob ( online education ) 9https://japan.cnet.com/article/35116616/
  • 10. Copyright © NTT Communications Corporation. All rights reserved. Use cases 10 • Online Education • Online healthcare • Field engineer support • …
  • 11. Copyright © NTT Communications Corporation. All rights reserved. Wish from our customer 11 • Recording • Voice recognition, translation • Video detection, recognition • Emotion detection • Low latency live streaming • VR / AR / Avatar • …
  • 12. Copyright © NTT Communications Corporation. All rights reserved. • Recording • Voice recognition, translation • Video detection, recognition • Emotion detection • Avatar • … Question 12 How do we support these needs from our customer?
  • 13. Copyright © NTT Communications Corporation. All rights reserved. Agenda of the talk 13 • Current business in WebRTC • WebRTC GW – enabler for AI/IoT • Media processing with Serverless architecture
  • 14. Copyright © NTT Communications Corporation. All rights reserved. Our answer 14 Use WebRTC GW for server side media processing
  • 15. Copyright © NTT Communications Corporation. All rights reserved. What’s SkyWay WebRTC GW 15 • Protocol gateway of WebRTC • Enabler for server side media processing • Can get RTP media stream from client • Controllable with REST API • Easy to connect from skyway client • Supported platform : Linux and Windows WebRTC GW Processing engineRTP
  • 16. Copyright © NTT Communications Corporation. All rights reserved. 16 https://github.com/skyway/skyway-webrtc-gateway
  • 17. Copyright © NTT Communications Corporation. All rights reserved. Use case 1 : server side recording 17 • WebRTC GW … stream out media data as RTP streaming • Bind decoder / encoder when needed • POST media data to cloud storage or else WebRTC GW Decoder / EncoderRTP Storage POST
  • 18. Copyright © NTT Communications Corporation. All rights reserved. Use case 2 : voice recognition 18 • WebRTC GW … stream out media data as RTP streaming • Bind decoder to get raw PCM data stream • POST voice data to Voice recognition PaaS • POST recognition result to cloud database. WebRTC GW Decoder RTP DB POST Voice recognition
  • 19. Copyright © NTT Communications Corporation. All rights reserved. • WebRTC GW … stream out media data as RTP streaming • Bind decoder to get raw PCM data stream • POST voice data to Voice recognition PaaS • POST recognition result to cloud database. Question 19 How do we manage these service for each scenario?
  • 20. Copyright © NTT Communications Corporation. All rights reserved. Agenda of the talk 20 • Current business in WebRTC • WebRTC GW – enabler for AI/IoT • Media processing with Serverless architecture
  • 21. Copyright © NTT Communications Corporation. All rights reserved. Base idea to manage server side processing 21 • Apply micro-service model for each media processing scenario. • Agility, Flexibility and scalability 21 WebRTC GW Micro Service #1 RTP Micro Service #2 Micro Service #3
  • 22. Copyright © NTT Communications Corporation. All rights reserved. Issues, we faced with 22 • We found that… • Sometime, media processing engine makes state issue. • Scalability issue for each components • Especially media encoder and recognition process requires high resource usage. • Have to allocate much resources for above micro servers.
  • 23. Copyright © NTT Communications Corporation. All rights reserved. Serverless architecture 23 • AKA ”Function as a service” • Event base execution model • Each function will be executed and killed in each session cycle • Easy to get scalability • No-need to care about long-term state issue 23 spawn
  • 24. Copyright © NTT Communications Corporation. All rights reserved. Our challenge 24 • Apply serverless architecture into server side media processing scenario. • Build serverless system from scratch on top of docker container • Current FaaS is focused to only RPC GW Decoder recognition GW Decoder recognition API GW orchestrator spawn
  • 25. Copyright © NTT Communications Corporation. All rights reserved. Demo 25
  • 26. Copyright © NTT Communications Corporation. All rights reserved. Pros and Cons 26 • Pros • Flexibility, Scalability and Agility • Do not need to care about execution time than short lived functions • Easy to re-use each components • Each scenario is well isolated, e.g. security perspective • Cons • Need to have consolidate monitoring • Controlling each components while set upping orchestration is difficult • Several timing issue will happen, especially video streaming.
  • 27. Copyright © NTT Communications Corporation. All rights reserved. Summary 27 • Current business in WebRTC • It is used for bunch of use cases • Media processing is needed • WebRTC GW – enabler for AI/IoT • Protocol GW for WebRTC • Can be orchestrated with media processing engines • Media processing with Serverless architecture • Flexibility, scalability and agility • Well isolated and security • Need to have more practice and management system.
  • 28. Copyright © NTT Communications Corporation. All rights reserved. Thanks!! @komasshu kensakukomatsu