High quality live broadcasting with PHP 27 07-2016

transcript

HIGH QUALITY LIVE BROADCASTING WITH PHP

by Martin de KeijzerPHP Limburg BE - July 27, 2016

A presentation by Martin de Keijzer

ABOUT ME

Martin de KeijzerDutch web developer

Working @ Spinnin' Records

PHPBenelux Board Member

@Martin1982

http://www.martindekeijzer.nl

We digital

LIVE STREAMINGWhy and when?

LIVING ON THE EDGE

Live streaming is all about bringing the latest and greatest

VIRTUAL PRESENCE

DIRECT FEEDBACK

Every modern live streaming service has a chat for direct feedback

LIKE IN THE OLD DAYS

BENEFITS AND USAGES

• More followers

• Create hype

• Product presentations

• Screencasts

THE SPINNIN' HISTORYWhy the tech dept. stepped in

SPINNIN' SESSIONS

Weekly premiere on Twitch

THE TECHNOLOGY

Ingredient 1; An MP4 file

THE TECHNOLOGY

Ingredient 2: An old Windows desktop

THE TECHNOLOGY

Ingredient 3: Open Broadcaster Software

THE TECHNOLOGY

Ingredient 4: A human being at the controls

THE TECHNOLOGY

What could possibly go wrong?

THE RESULT

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

THE RESULT

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

THE RESULT

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

OTHER COMPLICATIONS

Bandwidth when sending a stream to multiple social networks

OTHER COMPLICATIONS

Power outages

OTHER COMPLICATIONS

Technical knowledge about accepted stream settings

OTHER COMPLICATIONS

Manually starting streams for timezone targeting

LIVE BROADCAST BUNDLEThe path to salvation

GET IT TODAY

Demo project:git clone git@github.com:Martin1982/live-broadcast-demo.git

Runs with SQLite / Local php server

SUPPORT

GET IT TODAY

composer require martin1982/live-broadcast-bundle

Just the bundle:

Still in alpha; we release early & often

HIGH LEVEL OVERVIEW

FileUrl

Processing

Database FFMPEGOS PID's

Twitch

Facebook

Youtube

Twitch

Outputs

INSIDE THE BUNDLECreated for extensibility

SCHEDULER

• Retrieves the LiveBroadcast entities

• Checks running broadcasts

• Decides to start/stop or leave a broadcast alone

I/O STREAM SERVICES

Converts the Input and Channel entities to input and output parameters for FFMpeg

ENTITIESInput

One of File / URL or RTMP

LiveBroadcast

Title, description,Start & end time,

Stop stream when end time is reached

Channel

Facebook YouTubeTwitch

INPUTFile

Local file locationFor prerecorded video

Direct url location for prerecorded video

INPUTRTMP(soon)

Live video input protocolGreat for broadcasting to multiple channels from

a lower bandwidth location.

INPUT DEEP-DIVE

PROCESSING

Database Is being visited by the scheduler to seeif a broadcast needs to run or stop

The core command for reading input mediaand sending it to one of the output channelsFFMPEG

OSProcess list is being checked by the scheduler

to see which broadcasts from the bundle are runningand what their PID's are

OUTPUTTwitch

Configurable with a stream key from the Twitchdashboard

OUTPUT

Needs a reviewed Facebook app to run and allow API calls

Facebook

OUTPUTYouTube

(in active development)

Needs to authenticate an app for doingAPI calls

OUTPUTYour channel

Needs to be coded by you

OUTPUT ENTITY

OUTPUT SERVICE

BONUS: ADMIN

Spinnin' uses Sonata, so we added it as a bonus and a fullsetup in a demo project which you can use to test-drive

the application

THE ROAD AHEADCurrent and future goals

MORE INPUTS

Mainly RTMP, as easy and functional as possible

Ideas are going around to combine graphic layers to a single video stream output

MORE CHANNELS

YouTube Live streaming is high on the priority list.

MORE QUALITY

Firmly tested code, good documentation and easier implementation.

IN CONCLUSIONLive broadcasting on a professional level is hard

Bandwidth may be your enemy on remote locations

Broadcasting consists of input, processing and outputTwitch and Facebook are already there, with Youtube soon to follow

More inputs will be added shortly

Spinnin' Records invested time and resources to give thisaway for free, when fixing or adding stuff a PR is much appreciated

LIVE DEMO TIME?

Thank you for listening,any questions?

High quality live broadcasting with PHP 27 07-2016

Technology