[转]HTTP Dynamic Streaming with Flash Access protection

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Adobe HTTP Dynamic Streaming was developed by Adobe to deliver content to users via HTTP, enabling dynamic switching of video content quality depending on the bandwidth available to the user. It is especially effective when it works together with Adobe Flash Accesss 2.0 to protect valuable assets. This guide gives you step-by-step instructions to get your Flash media video platform up and running.
Here are the main features of HTTP Dynamic Streaming content delivery when used with Flash Access 2.0:
  • License management for content playback: no worries about content caching on users’ computers.
  • HTTP-based delivery of content means there’s no need to use other data protocols (such as RTMP or RTMPE). A powerful Content Delivery Network (CDN) provider infrastructure will work for your video delivery.
  • Flexible content management during playback means you do not need to download the content completely to start viewing it. Content fragments are cached on the hard drive as playback proceeds.
  • Content encryption enables secure HTTP streaming using HTTP port 80.
  • Content protection in network storage means content is always encrypted, both during storage and during playback. The content is decrypted block by block from memory cache.
  • Support for multi-bitrate streaming “links” encoding of content at different bitrates, enabling quick quality switching upon playback.
  • Content protection for streaming to external devices prevents exporting video via the analog ports (S-Video, Component Video) and digital ports (HDMI, DVI, UDI).
These features meet the requirements of most major video content rightsholders, thus enabling you to maintain a broad choice of content at your online resources.
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