Book Image

Getting Started with XenDesktop 7.x

By : Craig Thomas Ellrod
Book Image

Getting Started with XenDesktop 7.x

By: Craig Thomas Ellrod

Overview of this book

Table of Contents (27 chapters)
Getting Started with XenDesktop 7.x
Credits
Notice
About the Author
About the Reviewers
www.PacktPub.com
Preface
Creating a Domain Certificate Authority
Index

Graphics and multimedia policies


The following table lists the policies that apply to the graphics and multimedia settings:

Policy

Function

Default

Use with policy

Target Frame Rate

This specifies the maximum number of frames per second that are sent to the user device from the virtual desktop.

24 fps

 

Visual Quality

This controls the visual quality of the images that are displayed on the user device.

Medium

 

Minimum image quality

This specifies the minimum acceptable image quality for Adaptive Display. The lesser the compression used, the higher the quality of the images displayed.

Normal

 

Moving image compression

This specifies whether or not Adaptive Display is enabled. Adaptive Display automatically adjusts the image quality of videos and transitional slides in slide shows based on the available bandwidth. With Adaptive Display enabled, users should see smooth running presentations with no reduction in the quality.

Enabled

 

Progressive compression level

This provides a less detailed but faster initial display of images.

Disabled

  • Progressive compression threshold value

  • Lossy compression level

  • Progressive heavyweight compression

Progressive compression threshold value

This represents the maximum bandwidth, in kilobits per second, for a connection to which progressive compression is applied.

2147483647 kilobits per second

 

Extra color compression

This enables or disables the use of extra color compression on images delivered over the client connections that are limited in bandwidth, thus improving the responsiveness by reducing the quality of the displayed images.

Disabled

 

Extra color compression threshold

This represents the maximum bandwidth, in kilobits per second, for a connection below which extra color compression is applied. If the client connection bandwidth drops below the set value, extra color compression, if enabled, is applied.

8192 kilobits per second

 

Heavyweight compression

This enables or disables the reduction of the bandwidth beyond progressive compression without losing image quality by using a more advanced, but more CPU-intensive, graphical algorithm.

Disabled

Progressive compression level

Lossy compression value

This controls the degree of lossy compression used on images delivered over the client connections that are limited in bandwidth. In such cases, displaying the images without compression can be slow.

Medium

Progressive compression level

Lossy compression threshold value

This represents the maximum bandwidth, in kilobits per second, for a connection to which lossy compression is applied.

2147483647 kilobits per second

 

Flash default behavior

This controls whether or not Flash content can be rendered in sessions. Enabled indicates that Flash redirection is allowed on the client device. Blocked indicates that Flash redirection is not allowed. Disabled indicates that Flash redirection is rendered on the server.

Enabled

  • Flash URL compatibility list

  • Enable HDX MediaStream for Flash on the user device

Flash server-side content fetching URL list and Flash URL compatibility list

This specifies the websites whose Flash content can be downloaded to the server and then transferred to the user device for rendering.

Not set

Enable server-side content fetching

Flash background color list

This enables you to set the key colors for the given URLs.

Not set

 

Flash event logging

This enables or disables the recording of Flash events in the Windows application event log.

Enabled

 

Flash intelligent fallback

This enables or disables the automatic attempts to employ the server-side rendering for Flash player instances where the client-side rendering is either unnecessary or provides a poor user experience.

Enabled

 

Display memory limit

This specifies the maximum video buffer size in kilobytes for the session.

32768 kilobytes

Display mode degrade performance

Display mode degrade performance

This specifies the color depth or resolution that the session degrades to when the session display memory limit is reached.

Color depth

Notify user when display mode is degraded

Dynamic Windows preview

This enables or disables the display of seamless windows in flip, flip 3D, taskbar preview, and peek window preview modes.

Enabled

 

Image caching

This enables or disables the caching of images in sessions. When needed, the images are retrieved in sections to make scrolling smoother.

Enabled

 

Maximum allowed color depth

This specifies the maximum color depth allowed for a session.

32 bits per pixel

Display mode degrade performance

Notify user when display mode is degraded

This displays a brief explanation to the user when the color depth or resolution is degraded.

Disabled

 

Queuing and tossing

This discards the queued images that are replaced by another image.

Enabled

 

Multimedia conferencing

This allows or prevents support for video conferencing applications.

Enabled

Windows media redirection

Windows media redirection

Allowing this setting increases the quality of audio and video rendered from the server to a level that compares with the audio and video played locally on a client device. The server streams multimedia to the client in the original, compressed form and allows the client device to decompress and render the media.

Allowed

 

Windows media redirection buffer size

This specifies a buffer size from 1 to 10 seconds for multimedia acceleration.

5 secs

 

Windows media redirection buffer size use

This enables or disables using the buffer size that is specified in the Windows media redirection buffer size setting.

Disabled