SupportedPlaybackRates Property

Gets or sets the playback rates list.

Namespace:  Microsoft.Web.Media.SmoothStreaming
Assembly:  Microsoft.Web.Media.SmoothStreaming (in Microsoft.Web.Media.SmoothStreaming.dll)

Public Property SupportedPlaybackRates As IList(Of Double)
Dim instance As SmoothStreamingMediaElement
Dim value As IList(Of Double)

value = instance.SupportedPlaybackRates

instance.SupportedPlaybackRates = value

Property Value

Type: System.Collections.Generic..::..IList<(Of <(<'Double>)>)>
A list of numbers that represent the playback rates.

For more information and for examples, see Fast Forward and Rewind Modes (IIS Smooth Streaming).


This property currently is not supported for audio-only playback.

To set the playback rate, call the SetPlaybackRate method with a value from the SupportedPlaybackRates collection.

The following example shows how to get the available playback rates.

// Usable playback rates
IList<double> playbackRates = SmoothPlayer.SupportedPlaybackRates;

After the previous line of code runs, the list will contain the following values:

-8.0, -4.0, 0.5, 1, 4.0, 8.0.

Positive values set the playback rate to half the normal speed, 4.0 times the normal speed, or 8.0 times the normal speed. Negative values rewind the media stream at rates that are multiples of the normal speed by factors of -4.0 or -8.0.

The following example shows how to call the SetPlaybackRate method and pass it a value from the SupportedPlaybackRates collection.



Supported in: 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.0