Smooth Streaming Live in HDFrom Camera to ScreenScott Stanfield CEOVertigoscott@vertigo.com

Mike Hanley VP of ServicesVertigomike@vertigo.com

Smooth Streaming Live in HD: From Camera to ScreenThe Olympics video team offers you a rare chance to witness an HD production set up, step-by-step, from scratch.

Starting with an HD camera, we push the signal through an encoder with a tuned Smooth Streaming configuration, into Internet Information Services (IIS) 7.0, and then out through a Microsoft Silverlight 4 player using File | New and the Silverlight Media Framework. See the same techniques behind Sunday Night Football and the 2010 Winter Olympics, only on a smaller scale. This is a one-of-a-kind session including specialized hardware; not to be missed if you're curious about HD Internet broadcast.

Session EX32

1. Setup the shot2. Setup the IIS 7.5 Server3. Setup the video encoder4. Build a video player in Visual Studio

Smooth Streaming “Hello World”

• Camera, connected to a• Video encoder, connected to a• IIS 7.5, connected to a• CDN, connected to a• Vertigo video player, inside• My browser

What’s On Stage?

Frame Size 1280 x 720, or1920 x 1080

Scanning SystemProgressive orInterlaced

Frame Rate 24 or 30 fps

720p30

What is HD?

What is HD

http://upload.wikimedia.org/wikipedia/commons/a/a2/Common_Video_Resolutions_2.svg

http://upload.wikimedia.org/wikipedia/commons/1/13/Digital_cinema_formats.svg

1. Acquire the video source2. Convert signal to a connection type that the Inlet encoder supports3. Preview window on the encoder4. Profile preset on the encoder to do IIS Smooth Streaming

• IIS ingest server• IIS 7.5 with IIS Media Services 3.0• IIS Publishing Point

• Pick the bitrates on the encoder • Alex’s Smooth Streaming calculator• 16:9 (divisible by 16)

5. Pick the “in page” player size6. Start encoder

Video Acquisition and Encoding

1. Writing a simple Video Player using the SMF2. Wire up the manifest URL3. Hit F5 and run the player

• Watching the live audience (with a 6 delay second)4. SMF sites on top of the Microsoft Smooth Streaming Media Element

• Available at CodePlex (http://smf.codeplex.com)• SMF opens in Expression Blend• SMF 1.1 out now and 2.0 coming soon• Support for Progressive and Adaptive Streaming

Silverlight 4 Player Development

JOHN BISHOPFounder, Inlet Technologies

Live Adaptive StreamingSpinnaker Management Console

HOOK UP ENCODER

Smooth Streaming Multi-Bitrate Calc

Divisible by 16 for optimal path on the encoding algorithm

Video Window Size

Start with width (Vimeo) in page 656Multiply by 9/16 (0.5625) 369Divide by 16 23.0625Round to 23 and multiply by 16 368

Final Width x Height 656 x 368

IIS Ingest Server Setup

IIS Ingest Server Setup

IIS Ingest Server Setup

IIS Ingest Server Setup

SMF v2 – Step 1: Add Assemblies

<?xml version="1.0" encoding="utf-8" ?><LiveSmoothStreamingSettings> <BufferingEngineSettings ForceAccurateSeeks="true" LiveBufferTimeMilliseconds = "16000" /> <HeuristicsEngineSettings SwitchingFrequencyChunksBeforeUpgrade = "2" SwitchingFrequencyStepSizeForUpgrade ="3" WindowSizeHeuristicsMinimumPercentageOfNextLargestTrack = "0.8" FrameRateHeuristicsSuspendTrackIfMoreThanXPercentDroppedFrames = "0.30" FrameRateHeuristicsFlushBufferIfMoreThanXPercentDroppedFrames = "0.40“ FrameRateHeuristicsSuspendNextLowestTrackIfMoreThanXPercentDroppedFrames = "0.50" /></LiveSmoothStreamingSettings>

SMF v2 – Step 2: config.xml

xmlns:smf="clr-namespace:Microsoft.SilverlightMediaFramework;assembly=Microsoft.SilverlightMediaFramework" xmlns:smf_Media="clr-namespace:Microsoft.SilverlightMediaFramework.Media;assembly=Microsoft.SilverlightMediaFramework.Media"

SMF v2 – Step 3: Add Namespaces

<smf:Player d:LayoutOverrides="Height"> <smf:Player.Playlist> <smf_Media:Playlist> <smf_Media:Playlist.Items> <smf_Media:PlaylistItem DeliveryMethod="AdaptiveStreaming" MediaSource="http://server/mix10.isml/Manifest"/> </smf_Media:Playlist.Items> </smf_Media:Playlist> </smf:Player.Playlist></smf:Player>

SMF v2 – Step 4: Add Code

Microsoft Silverlight Media Framework (SMF) v2

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Q&A

Scott Stanfield scott@vertigo.com

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Thank You!