msPlayToPreferredSourceUri

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非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

msPlayToPreferredSourceUri is a read/write property which gets or sets the path to the preferred media source. This enables the PlayTo target device to stream the media content, which can be DRM protected, from a different location, such as a cloud media server.

This proprietary property is specific to Internet Explorer and Microsoft Edge.

句法

ptr = object.msPlayToPreferredSourceUri;

值

msPlayToPreferredSourceUri enables a PlayTo reference (a URI or URL) for streaming content on the PlayTo target device from a different location, such as a cloud media server. This enables web pages and Microsoft Store apps to play Digital Rights Management (DRM) protected content. The app specifies a preferred Uniform Resource Identifier (URI). This URI can point to a cloud based media server allowing streaming directly from the cloud, which can be DRM protected, instead of streaming content from the Windows machine which must be unprotected content.

A forward slash ("/") is appended to the URI string when it is sent over the network to a PlayTo device. This is done to conform to URI standards.

范例

  <video src="http://www.contoso.com/videos/video.mp4"
       msPlayToPreferredSourceUri="http://www.contoso.com/catalogid=1234" />

  var video = document.createElement('video');
  document.body.appendChild(video);
  video.src = "http://www.contoso.com/videos/video.mp4";
  video.msPlayToPreferredSourceUri = "http://www.contoso.com/catalogid=1234";

另请参阅

Microsoft PlayReady content access and protection technology is a set of technologies that can be used to distribute audio/video content more securely over a network, and help prevent the unauthorized use of this content.

元数据

最后修改： Mar 18, 2019

在此页

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值

范例

另请参阅

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