Codec

Menu path: Setup > Sessions > Citrix XenDesktop/XenApp > HDX/ICA Global > Codec

This setup page can only be seen if you have selected a Citrix Receiver version which is higher than 12.x.

• Graphical Codec: Decoding method for the transferred screen content
  • Automatic: Automatically selects the appropriate codec according to the performance of the hardware.
  • H.264 Deep Compression Codec: Guarantees high image quality, but results in high CPU load if the device does not have hardware acceleration for this purpose.
  • JPEG: Is less CPU intensive, although the image quality is slightly reduced.

Additional parameters for H.264 Deep Compression Codec

These parameters are relevant if Automatic or H.264 Deep Compression Codec is selected.

• Accelerated H.264 Deep Compression Codec (No Text Tracking, No Small Frames Feature)

  Enables hardware-accelerated decoding with H.264, which reduces the burden on the CPU.

  Uses the software implementation of H.264 and results in a greater CPU load.

  For more information, read the Setting up Citrix Sessions with Hardware-Accelerated H.264 Deep Compression Codec How-To.

  

  The following options are only available for the software implementation of H.264:

  • Text Tracking: Loss-free depiction of texts
  • Small Frames Feature: Pixel-perfect depiction of lines etc.

Additional parameters for JPEG

These parameters are relevant if JPEG is selected.

• JPEG Direct-to-screen decoding

  Decodes image tiles directly without using a bitmap cache.

• JPEG Batch Decoding

  Enables batch processing and deferred XSync.