This document summarizes a presentation about live broadcasting with PHP. It discusses why companies live stream, the benefits of live streaming like creating hype and product presentations. It also outlines some of the challenges of live streaming like bandwidth and technical issues. The presentation then introduces a PHP live broadcast bundle that handles scheduling broadcasts, processing the video with FFMPEG, and outputting to channels like Twitch, Facebook, and YouTube. The goal of the bundle is to make high quality live streaming easier to implement in PHP applications.

1. HIGH QUALITY LIVE BROADCASTING WITH
PHP
by Martin de Keijzer
PHP Limburg BE - July 27, 2016

2. A presentation by Martin de Keijzer
ABOUT ME
Martin de Keijzer
Dutch web developer
Working @ Spinnin' Records
PHPBenelux Board Member
@Martin1982
http://www.martindekeijzer.nl

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We digital

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TODAY

6. LIVE STREAMING
Why and when?

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LIVING ONTHE EDGE
Live streaming is all about bringing the latest and greatest

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VIRTUAL PRESENCE

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DIRECT FEEDBACK
Every modern live streaming service has a chat for direct feedback

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LIKE INTHE OLD DAYS

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BENEFITS AND USAGES
• More followers
• Create hype
• Product presentations
• Screencasts

12. THE SPINNIN' HISTORY
Why the tech dept. stepped in

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SPINNIN' SESSIONS
Weekly premiere onTwitch

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THETECHNOLOGY

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THETECHNOLOGY
Ingredient 1;An MP4 file

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THETECHNOLOGY
Ingredient 2:An old Windows desktop

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THETECHNOLOGY
Ingredient 3: Open Broadcaster Software

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THETECHNOLOGY
Ingredient 4:A human being at the controls

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THETECHNOLOGY
What could possibly go wrong?

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THE RESULT

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THE RESULT
The good: People were eager to hear the radio show early

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THE RESULT
The bad: We were struggling with technology to deliver on time

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THE RESULT
The ugly: Jenny got frustrated by technology issues and viewers
start complaining in chat

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OTHER COMPLICATIONS
Bandwidth when sending a stream to multiple social networks

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OTHER COMPLICATIONS
Power outages

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OTHER COMPLICATIONS
Technical knowledge about accepted stream settings

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OTHER COMPLICATIONS
Manually starting streams for timezone targeting

28. LIVE BROADCAST BUNDLE
The path to salvation

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GET ITTODAY
Demo project:
git clone git@github.com:Martin1982/live-broadcast-demo.git
Runs with SQLite / Local php server

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SUPPORT

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GET ITTODAY
composer require martin1982/live-broadcast-bundle
Just the bundle:
Still in alpha; we release early & often

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HIGH LEVEL OVERVIEW
Input
File
Url
RTMP
Processing
Database
FFMPEG
OS PID's
Twitch
Facebook
Youtube
Twitch
Outputs

33. INSIDETHE BUNDLE
Created for extensibility

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SCHEDULER
• Retrieves the LiveBroadcast entities
• Checks running broadcasts
• Decides to start/stop or leave a broadcast
alone

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I/O STREAM SERVICES
Converts the Input and Channel entities to input and output
parameters for FFMpeg

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ENTITIES
Input
One of File / URL or RTMP
LiveBroadcast
Title, description,
Start & end time,
Stop stream when end time is reached
Channel
Facebook
YouTube
Twitch

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INPUT
File
Local file location
For prerecorded video

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INPUT
Direct url location for prerecorded video
URL

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INPUT
RTMP
(soon)
Live video input protocol
Great for broadcasting to multiple channels from
a lower bandwidth location.

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INPUT DEEP-DIVE

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PROCESSING
Database
Is being visited by the scheduler to see
if a broadcast needs to run or stop
The core command for reading input media
and sending it to one of the output channels
FFMPEG
OS
Process list is being checked by the scheduler
to see which broadcasts from the bundle are running
and what their PID's are

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OUTPUT
Twitch
Configurable with a stream key from theTwitch
dashboard

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OUTPUT
Needs a reviewed Facebook app to run
and allow API calls
Facebook

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OUTPUT
YouTube
(in active development)
Needs to authenticate an app for doing
API calls

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OUTPUT
Your channel
Needs to be coded by you

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OUTPUT ENTITY

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OUTPUT SERVICE

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BONUS:ADMIN
Spinnin' uses Sonata, so we added it as a bonus and a full
setup in a demo project which you can use to test-drive
the application

49. THE ROAD AHEAD
Current and future goals

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MORE INPUTS
Mainly RTMP, as easy and functional as possible
Ideas are going around to combine graphic layers to a single
video stream output

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MORE CHANNELS
YouTube Live streaming is high on the priority list.

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MORE QUALITY
Firmly tested code, good documentation and easier implementation.

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IN CONCLUSION
Live broadcasting on a professional level is hard
Bandwidth may be your enemy on remote locations
Broadcasting consists of input, processing and output
Twitch and Facebook are already there, withYoutube soon to follow
More inputs will be added shortly
Spinnin' Records invested time and resources to give this
away for free, when fixing or adding stuff a PR is much appreciated

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LIVE DEMOTIME?

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Thank you for listening,
any questions?