Video / Live Streaming

Tools

RTMP - Real-Time Messaging Protocol

https://github.com/facebookincubator/rtmp-go-away

HLS - https://www.toptal.com/apple/introduction-to-http-live-streaming-hls

MPEG-DASH - Dynamic Adaptive Streaming over HTTP

WebRTC

Peer to peer live streaming protocol

ICE - Interactivity Connection Establishment

A framework for connecting peers
Tries to find the best path for each call
Vast majority of calls can use STUN
ICE Agent
ICE Candidates

SDP - Session Description Protocol

What capabilities are there in a call (Audio/Video)
What codecs can be used
What bandwidth is available for the call

STUN - Session Traversals Utility for NAT

What is my public IP address (because of NAT)
NAT Hole punching
A server that is publicly available on internet and that server will respond with your public ip and port that you requested with.
Google/Twilio hosts STUN server / CoTurn/ Xirsys (https://xirsys.com)

TURN - Traversal Using Relay around NAT

Provide a cloud fallback if peer-to-peer communication fails
Data is sent through server, uses server environment
Ensures the call works in almost all environments
Relays packet from point A to point B
All TURN servers are also STUN servers

WebRTC Crash Course

GitHub - Jaideep25/Videolify: Peer-peer calling, with screensharing, whiteboard, amazing themes, easy to read the code, etc !!

FFMPEG Streaming

ffmpeg (fast forward motion pictures expert group) for streaming videos over rtp to any number of different locations using multicasting

Commands

brew install ffmpeg

ffmpeg -i demo.mp4 -v 0 -vcodec mpeg4 -f mpegts udp://192.168.1.119:1234

ffplay udp://192.168.1.119:1234

ffmpeg -i rtp://@239.35.10.4:10000 -map 0:0 -map 0:2 -vcodec copy -acodec

copy -t 10 -y test.mkv- Wowza Streaming Server