OTT TV FOR ENGINEERS COURSE DESCRIPTION
This course covers OTT TV by primarily looking at the delivery of video streams
using HTTP adaptive streaming. Both MPEG DASH and HLS are investigated. Hands on
sessions involve using Wireshark to analyse streams as well as crafting
segmented content.
WHAT WILL YOU LEARN
* Explain what OTT TV is, and how it works.
* Describe the OTT TV architecture.
* Use Wireshark to analyse and troubleshoot OTT
* video streams.
* Explain how HTTP adaptive streaming works.
* Evaluate and compare MPEG DASH and HLS.
* Use tools to create OTT TV adaptive streams.
OTT TV FOR ENGINEERS COURSE DETAILS
* Who will benefit:
Anyone working in the broadcast industry.
* Prerequisites:
TCP/IP foundation for engineers.
* Duration
2 days
OTT TV FOR ENGINEERS COURSE CONTENTS
* What is OTT TV?
Brodeo providers vs ISPs. Progressive downloads versus streaming. Why not UDP
and RTP for delivery? Adaptive bit rate streaming. Standards.
Hands on: Base network setup. Using WireShark for HTTP streams.
* HTTP protocol stack
IP, TCP, IPv6. HTTP. HTTP 1.0, HTTP 1.1, HTTP 2.0, HTTP header fields. HTML
5.
Hands on: Analysing HTTP.
* Adaptive bitrate streaming principles
Chunks, fragments, segments. Manifest files. Encoding, resolution, bitrates.
Addressing, relative and absolute URLs, redirection. When does the client
switch streams? Switch points.
Hands on: Walk through of client behaviours on a stream.
* OTT TV streaming architecture
Server components, distribution components, client software. CDN, caching,
multiple servers.
Hands on: Analysing CDN and Internet delivery.
* TCP and HTTP streaming interactions
TCP ACK, TCP connections, unicast only. TCP flow control, TCP and
performance.
Hands on: TCP window sizes.
* MPEG DASH
Stakeholders, DASH architecture and model, codec agnostic, XML, Media
Presentation Description, Media Presentation, segment formats.
Hands on: MPEG DASH analysis.
* HTTP Live Streaming and others
Stakeholders. Media segments, media playlists, master playlists. Adobe HTTP
dynamic streaming, Microsoft smooth streaming.
Hands on: Analysing HLS.
* Tools
mp4dash, mp4fragment, libdash. Apple developer tools for HLS.
Hands on: Creating segmented content.
* Security
HTTPS, encryption, content protection.
Hands on: Encryption analysis.
* Summary
Choosing a streaming method. Impact of live versus VoD. Web sockets.