See the webinar recording of this presentation at: https://resource.alibabacloud.com/webinar/detail.htm?webinarId=56 As the technological backbone of the Alibaba ecosystem, Alibaba Cloud is providing best-in-class cloud computing infrastructure and cloud services for all business units within Alibaba. This year, Alibaba's Youku leveraged Alibaba Cloud to handle the millions upon millions of football fans who tuned-in for the 2018 FIFA World Cup, whether they were watching on their smartphone or from the comfort of their own home. To put that in perspective: Youku handled 70% of China’s World Cup online traffic, for only Argentina vs. France that was already 20 million viewers. Tune-in for this webinar to gain insights into Alibaba Cloud’s media solutions and how we were able to support the 2018 FIFA World Cup broadcast in China. Learn more about Alibaba Cloud's Media Solutions here: https://www.alibabacloud.com/solutions/multimedia

1. Next Level of
Digital Media with
Alibaba Cloud
Real Customer,
Real Benefits

2. Customer 1 - Youku
Full Content Spectrum:
UGC, PGC, OGC, Short Video,
Live Streaming
Business Model:
Ad-supported + Subscription
Content Audit Service
Video Tagging Service
Video Fingerprint Service
Chinese top online video site
Media related services used
MTS, Live, CDN
AI services
OSS, ECS, RDS, Big data, ……
Other services

3. Customer 1 – Youku - VOD
VoD system based on Alibaba Cloud CDN, MPS, and other services

4. Customer 1 – Youku – World Cup 2018
• DAU increased 20%
• Over 10 million concurrent viewers at peak
• NarrowBand HD™ enhanced
• High frame-rate (50fps)
• Low latency ~ 10s
Screenshot from YoukuScreenshot from
another broadcaster

5. Customer 1 – Youku – World Cup 2018
System Architecture

6. Customer 2 – CCTV5 Mobile Apps
Mobile apps from Chinese
national TV station: CCTV5
World cup 2018 licensed
streaming apps
Whole infrastructure on
Alibaba Cloud
Media related services
used:
Live, CDN
AI services
Automatic match highlight
User comment audit service
Other Services used:
ECS, OSS, RDS, Redis, ……

7. Customer 2 – CCTV5 Mobile Apps
Automatic match highlight
system architecture
Match live
streams
Video
Audio
Text
Signal separation /
Information indexing
Audio
analysis
Video
analysis
Slow-motion shot capture
Clip generation
Transition smooth
Goals
Shots on goal
Red/Yellow cards
Special Events
Highlight
Reels
Shot length analysis

8. Customer 3 – Huya (NYSE: HUYA)
• China’s largest online interactive e-sport
live steaming app
• Filed for IPO on the New York Stock
Exchange
• 4~5 million DAU
Other Services used:
ECS, OSS, ……
Media Services used:
Live, MPS, CDN, ……

9. Customer 3 – Huya (NYSE: HUYA)
Live streaming system architecture

10. Customer 4 – DingTalk
• Intelligent enterprise collaboration app
• Short in-chat short videos
• Instant group live streaming and replay
• Real-time multi-part video conferencing up to 30
people, with 200ms latency globally
Other Services used:
ECS, OSS, ……
Media Services used:
Live, MPS, RTC, CDN, ……

11. Customer 4 – DingTalk
RTC system architecture

12. Customer 5 – TV5
TV5 (formerly known as ABC) is the flagship
broadcast asset of the TV5 Network Inc., a
Filipino media company.
Currently, TV5 holds third spot in the
television ratings. Its programming includes
news and information shows from News5,
sports programming produced by Sports5,
anime, tele-series, Korean dramas, U.S.
dramas and cartoon shows, movie blocks,
comedy shows, game shows, as well as
reality and variety shows.
1. Radio and Television Broadcasting
2. Television Production and Content
3. Direct-to-Home (DTH) Satellite
4. Online Management and Content
5. Pay Per View (PPV)
SERVICES

13. Customer 5 – TV5

14. Customer 5 – TV5
Existing Architecture Improved Architecture on Alibaba Cloud
Availability
Web Tier Single Point of Failure / Not Scalable
Active – Active
High Availability / Scalability
Application Tier Single Point of Failure / Not Scalable
Active – Active
High Availability / Scalability
Database Tier Difficult to implement caching
Can improve with caching and/or read-only
RDS instances
Scalability Not sustainable Designed for scale
Performance
Dynamic Content Limited resources Scale-out server resources
Static Content Direct burden on origin
CDN to offload static contents
(Javascript, CSS, Images, etc.)
Cost More and more expensive to scale up Cheaper and cheaper to scale out

15. Customer 6 – Rings TV
RINGS.TV is a live video broadcasting cross-device
platform for teams or individuals to broadcast events &
activities anytime anywhere, and engage with remote
audiences in real time.

16. Customer 6 – Rings TV
Streaming requirements (especially for Live Streaming)
All of the above can be very challenging when the data stream is being transmitted through the
open Internet, and even more so for cross-border streaming!
Quick Buffering Low Latency Consistent throughput Secured transmission

17. Customer 6 – Rings TV

18. Customer Profile – Kwai / Kuaishou
It is the biggest social video sharing app in China. With 500 million users in total and as many as
50 million daily active users, Kwai is believed by many to be the fourth largest social app after
WeChat, Weibo and QQ.
It uses algorithms, and algorithms only, to recommend videos, which means it is the users who
determine what is good content.
User behavior
Data
Recommendation
number of short-video
> int32
2^32-1 = 4294967295
Over 50 millions
Daily Actively Users
UGC
User
Capture their life
the world
Video Contents User

19. Kwai / Kuaishou – Build the Living System on Alibaba Cloud
This is a typical CDN
living system with
two major parts:
one is the living
center, another is the
CDN network.

20. Why Kwai does NOT use the CDN living center, instead of building their own living center system?
In Internet, EVERYTHING is defined by the user experience.
By building the living center, Kwai can gain better controllability over the end-to-end user experience.
1. The user experience monitoring platform can better equipped to smartly monitor the audio/video data transmit
in real-time mode.
2. Instead of the RTMP protocol based on TCP, Kwai utilizes the private protocol based on UDP, to achieve
better audio/video data transmit to weak networking environment.
3. Better schedule the living stream among CDN vendors.
Kwai / Kuaishou – Build the Living System on Alibaba Cloud

21. What kind of workloads does
the system support?
CPU workload & Networking
workload:
Among all the Alibaba Cloud
ECS instance type, the Skylake
series CPU is the best choice,
e.g. hfc5
• Intel Xeon Gold 6149
(Skylake) w/i 3.1GHz
• CPU : RAM ratio is 1:2
• 16Gbps internal networking
w/i 32vCPU
Kwai / Kuaishou – Build the Living System on Alibaba Cloud