Introduction of HLS(Http Live Streaming) and Implementing a simple HLS server with GO language

1. GO HLS STREAMING
SANGWONL

2. AGENDA
- About HLS
- About GO
- Implement HLS with GO
- Demo

3. GO HLS STREAMING
ABOUT HLS - STREAMING HISTORY

4. GO HLS STREAMING
ABOUT HLS - DEFINITION
▸ HTTP Live Streaming lets you send audio and video over HTTP from an ordinary web
server for playback on iOS-based devices—including iPhone, iPad, iPod touch, and Apple
TV—and on desktop computers (Mac OS X).
▸ HTTP Live Streaming supports both live broadcasts and prerecorded content (video on
demand).
▸ HTTP Live Streaming supports multiple alternate streams at different bit rates, and the
client software can switch streams intelligently as network bandwidth changes.
▸ HTTP Live Streaming also provides for media encryption and user authentication over
HTTPS, allowing publishers to protect their work.

5. GO HLS STREAMING
ABOUT HLS - HOW IT WORKS
The server component is responsible for taking input streams of media and encoding them digitally,
encapsulating them in a format suitable for delivery, and preparing the encapsulated media for distribution.

6. GO HLS STREAMING
ABOUT HLS - HOW IT WORKS
The distribution component consists of standard web servers. They are responsible for accepting client
requests and delivering prepared media and associated resources to the client. For large-scale distribution,
edge networks or other content delivery networks can also be used.

7. GO HLS STREAMING
ABOUT HLS - HOW IT WORKS
The client software is responsible for determining the appropriate media to request, downloading those
resources, and then reassembling them so that the media can be presented to the user in a continuous
stream.

8. GO HLS STREAMING
ABOUT HLS - COMPATIBILITY

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ABOUT HLS - COMPETITOR
▸ Standard - MPEG-DASH
http://www.encoding.com/mpeg-dash/
▸ Adobe Systems - HTTP Dynamic Streaming
http://www.encoding.com/http-dynamic-streaming-hds/
▸ Microsoft - Smooth Streaming
http://www.encoding.com/microsoft-smooth-streaming/

10. ▸ Javascript - hls.js
https://github.com/dailymotion/hls.js
▸ Android - MediaController
https://developer.android.com/guide/appendix/media-formats.html
▸ iOS - MPMoviePlayer
https://developer.apple.com/library/ios/documentation/MediaPlayer/Reference/
MPMoviePlayerController_Class/
▸ Windows - MicrosoftHLSSDK
https://github.com/MicrosoftDX/MicrosoftHLSSDK
GO HLS STREAMING
ABOUT HLS - LIBRARY

11. GO HLS STREAMING
ABOUT HLS - REFERENCES
▸ http://appleinsider.com/articles/09/07/08/
apple_launches_http_live_streaming_standard_in_iphone_3_
0
▸ https://tools.ietf.org/html/draft-pantos-http-live-streaming-19
▸ https://developer.apple.com/streaming/
▸ http://www.encoding.com/http-live-streaming-hls/
▸ https://en.wikipedia.org/wiki/
Dynamic_Adaptive_Streaming_over_HTTP

12. GO HLS STREAMING
ABOUT GO
▸ * Some notable open-source applications in Go include:
Docker, a set of tools for deploying Linux containers
Doozer, a lock service by managed hosting provider Heroku
Juju, a service orchestration tool by Canonical, packagers of Ubuntu Linux
Syncthing, an open-source file synchronization client/server application
Packer, a tool for creating identical machine images for multiple platforms from a single source configuration
Ethereum, a shared world computing platform.
▸ * Other companies and sites using Go (generally together with other languages, not exclusively):
Google, for many projects, notably including download server dl.google.com
Netflix, for two portions of their server architecture
Dropbox, migrated some of their critical components from Python to Go
CloudFlare, for their delta-coding proxy Railgun, their distributed DNS service, as well as tools for cryptography, logging, stream processing, and
accessing SPDY sites.
SoundCloud, for "dozens of systems"
The BBC, in some games and internal projects
Splice, for the entire backend (API and parsers) of their online music collaboration platform.
Cloud Foundry, a platform as a service
CoreOS, a Linux-based operating system that utilizes Docker containers.
Couchbase, Query and Indexing services within the Couchbase Server
Replicated, Docker based PaaS for creating enterprise, installable software.[
MongoDB, tools for administering MongoDB instances
Zerodha, for realtime peering and streaming of market data[citation needed]
Chango, a programmatic advertising company uses Go in its real-time bidding systems.
SendGrid, a Boulder, Colorado-based transactional email delivery and management service.
Plug.dj, an interactive online social music streaming website.
ThoughtWorks, some tools and applications around continuous delivery and instant messages (CoyIM).
AeroFS, private cloud filesync appliance provider which migrated some microservices from Java to Go with major memory footprint improvements
Uber, for handling high volumes of geofence-based queries.

13. GO HLS STREAMING
IMPLEMENT HLS WITH GO

14. GO HLS STREAMING
IMPLEMENT HLS WITH GO

15. GO HLS STREAMING
IMPLEMENT HLS WITH GO
1. main function
2. naming package & import modules
3. define url routing

16. GO HLS STREAMING
IMPLEMENT HLS WITH GO
4. implement core handler

17. GO HLS STREAMING
IMPLEMENT HLS WITH GO
5. implement core handler
6. serve HLS index file(.m3u8) with “application/x-mpegURL”
7. serve HLS segment file(.ts) with “video/MP2T”

18. GO HLS STREAMING
DEMO