Azure Media Service：打造可擴充、支援多種播放平台與版權保護的媒體播放雲端平台

陶强Azure 全球黑带

Azure Media Services Introduction

Video-on-demand workflow

• Encoding features

• Dynamic packaging

Azure Media Player

• Features

• Media Player Plugins

Content Protection (AES and DRM)

• Dynamic Encryption

Live encoding and streaming workflow

• How does it work

• Demo

Huge capital investment requiredVideo is the new currency

不断扩大的生态环境，提供第三方合作伙伴增值组件

直播和点播视频流集成CDN

内容保护转码和

媒体智能化

云存储和上传

支持大规模的视频直播、点播和业务视频流应用

客户端

播放器

Ingest/Store

Encode

Encrypt

Publish

Stream/Deliver

Encoder

Starting from 1.99/GB

Premium Encoder

Starting from 1.99/GB

0

1

2

3

4

5

6

Basic Standard Premium

Encoder Performance

2x faster

4-5x faster

$69/mo $139/mo $399/mo

comparison between Encoder and Premium encoder

Video sources Multi-bitrates Mp4Origin Service

HLS

Smooth

Streaming

Encode

Video sources Multi-bitrates Mp4

Origin Service

HLS

Smooth

Streaming

Encode

Dynamic

Packaging

Traditional Encode and Package

Dynamic Packaging

Input format: Mp4 or Smooth Streaming Output format: Smooth Streaming , Http-Live-Streaming (v4 and v3), MPEG-DASH

You need to have at least 1 reserved streaming unit to enable dynamic packaging!

DASH

Media Services APIs and SDKs REST API for all platformsReference: http://msdn.microsoft.com/en-us/library/windowsazure/hh973617.aspx

.NET library Nuget package: https://nuget.org/packages/windowsazure.mediaservices

GitHub: https://github.com/Azure/azure-sdk-for-media-services

Extensions for .NET SDK: https://github.com/sazure/azure-sdk-for-media-services-extensions

PHP Library GitHub: https://github.com/windowsazure/azure-sdk-for-php

Open Tech blog with demo: http://msopentech.com/blog/2014/01/23/ms-open-technologies-enhances-open-source-php-sdk-windows-azure/

JAVA library http://www.windowsazure.com/en-us/develop/java/java-home Windows / Mac / Linux

GitHub: https://github.com/windowsazure/azure-sdk-for-java/

PowerShell cmdletsHow to use: http://www.gtrifonov.com/2013/08/24/how-to-use-windows-azure-powershell-for-media-services/

Node.js libraryGitHub: https://github.com/fritzy/node-azure-media

http{media services account name}.origin.mediaservices.net/{locator ID}/{filename}.ism/Manifest(format=mpd-time-csf)

Streaming Locator

Format Syntax

Smooth Streaming

Smooth Streaming 2.0 manifest (legacy manifest) (format=fmp4-v20)

MPEG DASH (format=mpd-time-csf)

Apple HTTP Live Streaming (HLS) V4 (format=m3u8-aapl)

Apple HTTP Live Streaming (HLS) V3 (format=m3u8-aapl-v3)

HDS (for Adobe PrimeTime/Access licensees only) (format=f4m-f4f)

• 一个播放器支持所有屏幕尺寸与设备

• HTML / JavaScript / CSS 多种部署方式

• 支持 HTML5 和回退到 Flash / Silverlight

• 自动检测系统寻找视频流

• 最佳的回放格式，自适应比特率

Demo: http://aka.ms/azuremediaplayer

可嵌入到自定义的网页与移动应用中

Implemented Features

• Playback of Content from Azure Media

Services

• Clear On Demand

• Clear Live

• AES-128 Encrypted content

• PlayReady Encrypted content

• Widevine encrypted content

• Playback across a wide range of devices

• Simple setup with <video> or via JS

• Unified JavaScript APIs

• Basic Heuristics

• Unified Player UI

Coming Soon

• Full Subtitles/Captions support

• Discontinuities

• Trick-Play

• Audio Only

• Ads support

• Analytics

• Audio Track Selection

• Bitrate Selection

• Heuristics APIs

• Specific error messaging and across-tech error unification

• Multi-period presentations

• Multiple camera angles

Unified CSS UI

Unified JS Interface

Tech order

A DASH player (HTML5 EME/MSE)

A flash player

A Silverlight player

Native HTML5(Built in browser)

• Access Platform/device capability• Choose player based on tech order• Pick up right streaming URLs from AMS

Playback (VOD, live, protected content)

Azure Media Player PluginsPlugin Name Demo URL Source Code Description

Additional Features

Title Overlay Demo Github Overlays configurable video title over screen

Timeline Markers Demo GithubThis plugin takes in an array of times and overlays tiny markers

over the progress bar at those times

Analytics

Application

InsightsBlog Post Github

Plugin that tracks your player metrics and ports it to Power BI for

an intuitive graphical representation of your viewers' player

experience

Google Analytics N/A Github Google Analytics plugin for Azure Media Player

Diagnostics

Diagnostics

OutputDemo Github

This plugin outputs an array of diagnostics from your player, to

see it in action go to the demo link and open up your javascript

console

Ease of Access

Zoom In Demo GithubThis plugin displays a drag-able zoom-in scale on the players

screen so viewers can zoom in on your content

Live CaptionsSubPly Post,

Azure Blog PostN/A

End to End workflow designed for live captioning built plugin for

Azure Media Player, click on the left most lin to go to SubPly's

site and learn more about the solution

Social

Share Demo GithubThis plugin adds a share button to the player's control bar so that

your viewers can share the video they're watching with their

friends via Facebook, Twitter or Linkedin

AMP Application Insights Pluginshttps://github.com/Azure-Samples/media-services-javascript-azure-media-player-application-insights-plugin

AMP Application Insights Pluginshttps://github.com/Azure-Samples/media-services-javascript-azure-media-player-application-insights-plugin

Azure Media Player announcement

Player API documentation

Player API version

Player demo pages

Azure Media Play Plugins

• Secure Upload and Secure Storage Options

• Dynamic Encryption Options for Content Streaming

• AES-128 Clear Key

• Microsoft PlayReady

• Hosted License for Key Delivery

• Token-based Authentication models and Integration with Active Directory

• Diverse playback options

Dynamically encrypt your single encoded multi-bitrate MP4 via common encryption scheme (CENC) with popular DRM technologies such as Microsoft PlayReady and Google Widevine, and deliver via MPEG-DASH. DRM technology allows you to define restrictive licensing agreement to manage user access rights to your media.

Source: IDC Successful Cloud Partners 2013

DRM technology

Who should use this feature:

Premium studio content or high business impact content: Key is encrypted and decryption happens in a secure DRM decoder environment

Choose the best content protection method on the fly

Encrypt on-the-wire communication using the widely-known symmetric AES encryption algorithm. An authentication service for key is provided.

Source: IDC Successful Cloud Partners 2013

AES Clear Key encryption

Who should use this feature:

Trusted audience or time-valued content: Key is stored in clear format so it can only be used with trusted users or content that has time value associated with it. Used to prevent “man-in-the-middle” attacks

Storage

• MP4

Define:

Origin Service

DRM/Key services

Tokenverification

License/AES Key

Customer’s Auth system

Content Key Authorization policy(Token/IP/Open)

assetAsset Delivery policy (MPEG-DASH with PlayReady or Widevine)(Smooth/HLS with PlayReady)

Client SDK

Customers

Microsoft PlayReady DRM

(free)

(free)

(free)

(licensee fee)

Google Widevine DRM

All free to use

Ingest

Transform

Archive

Encrypt

Deliver

Live channel

Ingest URL

RTMP (Highest Bitrate)RTP

Smooth Streaming

Preview URL

Live

Enc

odin

g

Prev

iew

Input devices

• Ingest endpoint to accept Live streams

• Convert ingest data to fMP4 (e.g. RTMP fMP4)

• Forwards the stream to live encoding or preview end-points

Azure Media Services

• Encode video into multi-bitrates

Live channel

Ingest URL

RTMP (Highest Bitrate)RTP

Smooth Streaming

Preview URL

Live

Enc

odin

g

Prev

iew

Input devices

• Receives stream from Ingest

• Forwards to Program

• Exposes Preview URL (for monitoring)

Azure Media Services

• Writes it to Blob Storage for

Archive/DVR

Prog

ram Storage

(fmp4)

Prog

ram

Streaming endpoints

Dyn

amic

Enc

rypt

ion

Dyn

amic

Pac

kagi

ng

CDN Live stream(Program URLs)

StorageFMP4

Streaming Endpoint

Client SDK

Players

Architecture: Live Streaming with dynamic encryption

ChannelProgram

Multi-bitrate RTMP/Smooth

Preview- monitoring

PlayReady license/ AES Key Services

Token Authentication

PlayReady License/ AES Key

Customer’s Auth system

Features:

• Live encoding of a single bitrate live feed into an adaptive bitrate stream

• Ability to ingest a live feed over RTP protocol (MPEG Transport Streams), RTMP and Smooth Streaming

• Ability to control insertion of slates

• Ability to get a thumbnail preview of the live feed

live streaming through the cloud

Key Takeaways

• Media Services are easy, flexible, and powerful

• Customers can reach any device using any protocol

• Partner ecosystem: easily build-in or build-on

• Content protection across all clients

• Pay for what you use, easy to understand billing

• Any media, on any device, delivered from the cloud