HTML5 multimedia redirection extends the multimedia redirection features of HDX MediaStream to include HTML5 audio and video. Because of growth in online distribution of multimedia content, especially to mobile devices, the browser industry has developed more efficient ways to present audio and video.
Flash has been the standard, but it requires a plug-in, doesn't work on all devices, and has higher battery usage in mobile devices. Companies like Youtube, NetFlix.com, and newer browsers versions of Mozilla, Google, and Microsoft are moving to HTML5 making it the new standard.
HTML5-based multimedia has many advantages over proprietary plug-ins, including:
- Company-independent standards (W3C)
- Simplified digital rights management (DRM) workflow
- Better performance without the security issues raised by plug-ins
HTTP progressive downloads
HTTP progressive downloads is an HTTP-based pseudo-streaming method that supports HTML5. In a progressive download, the browser plays back a single file (encoded at a single quality) while it is being downloaded from an HTTP web server. The video is stored on the hard drive as it's received and is played from the hard drive. If you rewatch the video, the browser can load the video from cache.
For an example of a progressive download, see the HTML5 video redirection test page. Use the developer tools in your browser to inspect the video element in the webpage and find the source (an mp4 container format) in the HTML5 video tag:
<video src="https://www.citrix.com/content/dam/citrix61/en_us/images/offsite/html5-redirect.mp4" controls="" style="width:800px;"></video>
We support only redirection for progressive downloads in mp4 format. We don't support WebM and Adaptive bitrate streaming technologies like DASH/HLS.
- Server side render
- Server fetch client render
- Client side fetching
Control these by using policies. For more information, see Multimedia policy settings.
Minimum versions of Citrix Receiver:
- Citrix Receiver for Windows 4.5
- Citrix Receiver for Linux 13.5
For more information, see Multimedia policy settings.