Video and Image Processing Suite User Guide

ID 683416
Date 2/12/2021
Public

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13.2. Chroma Resampler Parameter Settings

Table 42.  Chroma Resampler II Parameter Settings
Parameter Value Description
Horizontal resampling algorithm
  • NEAREST_NEIGHBOR
  • BILINEAR
  • FILTERED
Select the horizontal resampling algorithm to be used.
Horizontal chroma siting
  • LEFT
  • CENTER
Select the horizontal chroma siting to be used.

This option is only available for the filtered algorithm.

The nearest neighbor algorithm forces left siting and bilinear algorithm forces center siting.

Enable horizontal luma adaptive resampling On or Off Turn on to enable horizontal luma-adaptive resampling.

The parameter is only available for filtered upsampling.

Vertical resampling algorithm
  • NEAREST_NEIGHBOR
  • BILINEAR
  • FILTERED
Select the vertical resampling algorithm to be used.
Vertical chroma siting
  • LEFT
  • CENTER
Select the vertical chroma siting to be used.

This option is only available for the filtered algorithm.

The nearest neighbor algorithm forces top siting and bilinear algorithm forces center siting.

Enable vertical luma adaptive resampling On or Off Turn on to enable vertical luma-adaptive resampling.

The parameter is only available for filtered upsampling.

Maximum frame width 32–8192, Default = 1920 Specify the maximum frame width allowed by the IP core.
Maximum frame height 32–8192, Default = 1080 Specify the maximum frame height allowed by the IP core.
How user packets are handled
  • No user packets allowed
  • Discard all user packets received
  • Pass all user packets through to the output
  • If your design does not require the Chroma Resampler II IP core to propagate user packets, then you may select Discard all user packets received to reduce ALM usage.
  • If your design guarantees that the input data stream will never have any user packets, then you can further reduce ALM usage by selecting No user packets allowed. In this case, the IP core may lock if it encounters a user packet.
Add extra pipelining registers On or Off Turn on to add extra pipeline stage registers to the data path.
You must to turn on this option to achieve:
  • Frequency of 150 MHz for Cyclone V devices
  • Frequencies above 250 MHz for Arria V, Stratix V, Intel® Arria® 10, or Intel® Cyclone® 10 GX devices
Bits per color sample 4–20, Default = 8 Select the number of bits per color plane per pixel.
Number of color planes 1–4, Default = 2 Select the number of color planes per pixel.
Color planes transmitted in parallel On or Off Select whether to send the color planes in parallel or in sequence (serially).
Input pixels in parallel 1, 2, 4, 8, Default = 1 Select the number of pixels transmitted per clock cycle on the input interface.
Output pixels in parallel 1, 2, 4, 8, Default = 1 Select the number of pixels transmitted per clock cycle on the output interface.
Variable 3 color interface
  • NEITHER
  • INPUT
  • OUTPUT
Select which interface uses the variable subsampling 3 color interface.
Enable 4:4:4 input On or Off Turn on to select 4:4:4 format input data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both.
Enable 4:2:2 input On or Off Turn on to select 4:2:2 format input data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both. The IP core does not support odd heights or widths in 4:2:2 mode.
Enable 4:2:0 input On or Off Turn on to select 4:2:0 format input data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both.
Enable 4:4:4 output On or Off Turn on to select 4:4:4 format output data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both.
Enable 4:2:2 output On or Off Turn on to select 4:2:2 format output data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both. The IP core does not support odd heights or widths in 4:2:2 mode.
Enable 4:2:0 output On or Off Turn on to select 4:2:0 format output data.
Note: The input and output formats must be different. A warning is issued when the same values are selected for both.