Iis Smooth Streaming And Media Delivery In Sl3
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Transcript of Iis Smooth Streaming And Media Delivery In Sl3
IIS Media Services and Silverlight 3Redefining Online Multimedia Applications
Pandurang NayakClient Platform EvangelistMicrosoft Corporation
Why are we here?
Understand how media delivery is done todayFind what is missing!
What is new in IIS 7 and Silverlight 3?Delivering existing content betterExploring new media delivery possibilities
Media Delivery Today
Progressive Download
• Delivered via HTTP• Just requires a Web Server• File is downloaded and played (not necessarily sequentially)• Most online delivery via YouTube, MSN Soapbox, etc. uses this
Streaming
• Requires a streaming server solution (ex: Windows Media Services)• Streams are harder to “rip”• Requires a more complex setup for scaling out• Can do advanced features like multi-bitrate (MBR or VBR) streaming• Can integrate DRM and content protection technologies
What this means?
Always a choice between Streaming: Higher cost, higher content safety, higher dexterityProgressive Download: Lower cost, lesser safety, lesser options
Difficult to plan for end-user bandwidthSame delivery might be consumed by multiple clients, some with low and some with high bandwidth
Buffering and QualityUsers want higher quality But not at the cost of higher buffering and delayTypical video on the Internet is still not “smooth”
IIS Media Services Integrated Web/Media Platform on Windows Server
introducing
IIS Media Services Strategy“Web media platform to deliver best-in-class user experience and rich monetization tools built on cacheable HTTP”
User experience that smoothly scales to true HDBest quality for the moment given network/CPUResponsive interactivity (instant start/seek)
Platform to make money on the webUser engagement tracking and rich reportingTechnology that scales to your business
Industry-leading scale at lowest costCacheable HTTP to align with Web infrastructure
Why Use IIS Media Services?
Drive more site traffic and increase ad revenueAttract and retain viewers w/engaging experiencesMonetize by making more for each ad impression
Give your users the best playback experienceMake High-Definition (HD) on the Web a realityNever make your users wait for contentDeliver the right bits at the right time
Use platform components to monetize and scaleDeliver Media/Web content from the same serversTrack your users’ experience in real-timeScale out delivery with the needs of your business
IIS Media Services
Intelligent Progressive Downloads
Smooth Streaming
Advanced Logging
Edge Caching
Installing IIS Media Services via Web Platform Installer (PI)
demo
Intelligent Progressive Download
Web Playlists
• Tokenized URLs in the media entries obfuscate the actual location of the content • Configurable client-side caching control• Define playlists to monetize media delivery by inserting “no-skip” in-stream or pre-roll video ads• Configurable server-side rules• Out-of-the box compatibility with the following media types: .asf, .avi, .flv, .m4v, .mov, .mp3, .mp4, .rm, .rmvb, .wma and .wmv
Bit Rate Throttling
• Reduce bandwidth costs without compromising end-user experience• Share extra bandwidth among all users with dynamic throttling (savings in 95th percentile “burstable billing” models)• Extend throttling to other content types
Web Playlists: How does it work?
Smooth Streaming
Smooth Streaming
• Adaptive streaming of media over HTTP• Scales massively on content distribution networks• True HD media experiences (720p/1080p) a reality• Supported by Expression Encoder
Live Smooth Streaming
• Takes advantage of existing HTTP networks and infrastructure• Extend engagement time with higher quality video• Live video rewind/fast-forward and “PVR” capabilities
Streaming and Prog. Download
Traditional Streaming• Responsive User
Experience• Bandwidth Use• User Tracking
Progressive Download• Works from a
Web Server• World-wide
scale w/HTTP
Challenges• No cacheability• Separate,
smaller streaming networks
Challenges• Limited User
Experience• User tracking• Bandwidth Use
(20% watched)
Smooth Streaming:Best of both approaches
Traditional Streaming• Responsive User
Experience• Bandwidth Use• User Tracking
Progressive Download• Works from a Web
Server• World-wide scale
w/HTTP
Movie
Media Delivery Approaches
Packet Packet Packet Packet Packet
Traditional Streaming
Smooth Streaming
Movie
Progressive Download
Play SeekPaus
e
Video @ 01:04?Video @ 01:06?
Video @ 01:08?
The "Last Mile" Challenge
Edge Server
The “Last Mile” from Server to Client
Low BandwidthFast CPU
High BandwidthSlow CPU
“Best quality I can
download”
High Bandwidth Fast CPU
“Best quality I can
render”
“Best quality, period ”
Conditions change every second
Adapting Bit Rate in Real-Time
2.4M
…
300K
Bit Rate Heuristics
300K @ 00:00?700K @ 00:02?
2.4M @ 00:04?1.5M @ 00:06?
2.4M @ 00:08?
00:00 00:02 00:04 00:06 00:08300K (start quickly)
700K (good network)2.4M (great network)
1.5M (glitch)2.4M (play on…)
Solve the "Last Mile" Challenge
Smooth Streaming – adapt bit rate in real-timeBest experience possible for conditionsRight content at the right time
Give your users the best experienceVideo playback does not stopBest quality for network/CPU at any point in timeInstant start-up, instant seek
Leverage HTTP cache-abilityGet better QoS w/the reach of HTTP cachesSmart Client Heuristics self-correct video deliveryOne caching infrastructure (HTTP) not two
Top Asks for Smooth Streaming
Scaling to a growing audienceReporting, real-time monitoring, analyticsSupport for Live events with DVR
Using a Streaming Network
Challenge: Scale(“The Day Live Web Video Streaming Failed Us”)
Media Origin
Media Edges
Using an HTTP Delivery Network
HTTP Origin
HTTP Edge
Servers
Remote Region
HTTP Distribution
Servers
ISP
Enterprise
Advanced Logging Server
Edge Server
User Experience Data
Smooth Streaming Live
Using an HTTP Delivery Network
HTTP Origin
HTTP Edge
Servers
Remote Region
HTTP Distribution
Servers
ISP
Enterprise
Using Smooth Streaming
Media Origin
Media Distribution
Servers
Media Edge
Servers
Advanced Logging & Edge Caching
Advanced Logging
• Understand what your users really do with media• Real-time, flexible, rich logging and data collection• Custom Media Metrics support• Analytics Integration (Silverlight front-end coming soon!)
Edge Caching
• IIS Caches Smooth and Live Smooth Streaming content• Application Request Routing v2 introduces disk-based caching capabilities• Reduced costs by using HTTP Edge Caches (as opposed to Media Edge servers)
Playback for Smooth Streaming
Expression Encoder 2 SP1
• Adaptive Encoding profile for Smooth Streaming• Player with client capabilities for Smooth Streaming• WebDAV publishing to IIS 7
Open Video Player
• Industry-standard player with several industry partners – Akamai, Microsoft, Adobe, Panache, EyeWonder, etc.
• Community project to share a common player code and best practices
Related Content
<SHAMLESS-PLUG>
Next Session: Advanced Silverlight Topics Covered:1. Media Best Practices2. Performance Best Practices3. Understanding Silverlight rendering under the hoods
</SHAMLESS-PLUG>
Session Resources
IIS Community Site: http://www.iis.net
IIS Media Services: http://www.iis.net/media
Silverlight: http://www.silverlight.net
Expression Encoder: http://www.microsoft.com/expression
Open Video Player: http://www.openvideoplayer.com
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© 2009 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS,
IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
