Configure PCoIP image quality levels

Controls how PCoIP renders images during periods of network congestion. The Minimum Image Quality, Maximum Initial Image Quality, and Maximum Frame Rate values interoperate to provide fine control in network-bandwidth constrained environments.

Use the Minimum Image Quality value to balance image quality and frame rate for limited-bandwidth scenarios. You can specify a value between 30 and 100. The default value is 40. A lower value allows higher frame-rates, but with a potentially lower quality display. A higher value provides higher image quality, but with potentially lower frame rates when network bandwidth is constrained. When network bandwidth is not constrained, PCoIP maintains maximum quality regardless of this value.

Use the Maximum Initial Image Quality value to reduce the network bandwidth peaks required by PCoIP by limiting the initial quality of the changed regions of the display image. You can specify a value between 30 and 100. The default value is 80. A lower value reduces the image quality of content changes and decreases peak bandwidth requirements. A higher value increases the image quality of content changes and increases peak bandwidth requirements. Unchanged regions of the image progressively build to a lossless (perfect) quality regardless of this value. A value of 80 or lower best utilizes the available bandwidth.

The Minimum Image Quality value cannot exceed the Maximum Initial Image Quality value.

Use the Maximum Frame Rate value to manage the average bandwidth consumed per user by limiting the number of screen updates per second. You can specify a value between 1 and 120 frames per second. The default value is 30. A higher value can use more bandwidth but provides less jitter, which allows smoother transitions in changing images such as video. A lower value uses less bandwidth but results in more jitter.

Set the 'Use image settings from client' when you want to use the 'Minimum Image Quality', 'Maximum Initial Image Quality', 'Maximum Frame Rate', 'Disable Build to Lossless' values from the client instead of the host. Currently, only Zero Client Firmware 3.5 and above support these settings on the client side.

These image quality values apply to the soft host only and have no effect on a soft client.

When this setting is disabled or not configured, the default values are used. When these settings are changed during runtime, they would take effect immediately.


Supported on: Teradici PCoIP Session

See the Explain tab for example values.

Set the Minimum Image Quality value (default value: 40):

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Teradici\PCoIP\pcoip_admin
Value Namepcoip.minimum_image_quality
Value TypeREG_DWORD
Default Value40
Min Value30
Max Value100
Set the Maximum Initial Image Quality value (default value: 80):

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Teradici\PCoIP\pcoip_admin
Value Namepcoip.maximum_initial_image_quality
Value TypeREG_DWORD
Default Value80
Min Value30
Max Value100
Set the Maximum Frame Rate value (default value: 30):

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Teradici\PCoIP\pcoip_admin
Value Namepcoip.maximum_frame_rate
Value TypeREG_DWORD
Default Value30
Min Value1
Max Value120
Use image settings from zero client if available
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Teradici\PCoIP\pcoip_admin
Value Namepcoip.use_client_img_settings
Value TypeREG_DWORD
Default Value0
True Value1
False Value0

(default value: disabled; not applicable for soft client)


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