IP-VFC Colour Conversion

The IP-VFC card is capable of 2 kinds of colour conversion:

• It can convert the RGB output by the GPU to a user-configurable Colour Format.
• It can apply a Colour Conversion Profile to the video.

Both of these can be configured by clicking on the VFC Slot of the IP-VFC in the Feed View.

Note

Changing these settings will not take effect until Apply Feed Settings or Apply Genlock is clicked and completes.

Colour Format

the IP-VFc supports 3 select a colour formats:

• RGB (Full)
• YCbCr 4:4:4
• YCbCr 4:2:2
• Auto

The GPU will output RGB Full by default in Designer and the IP-VFC card will convert to the selected format at no extra processing cost.

In SDI mode the card will automatically be set to select 4:2:2 to be 12/3G SDI compliant.

Auto will attempt to select the highest bandwidth option that fits within your select resolution.

Colour Conversion Profile

The Colour Conversion Profile field can be found under the Colour dropdown. This value determines how colour is converted from RGB to YCbCr colour space within the card.

You must make sure that the correct Colour Conversion Profile is selected for your output resolution. This will be automated in a future software release.

For now we recommend always selecting the Auto value.

The options available are:

• BT.601 - Suitable for 480i and 576i resolutions which the IP-VFC card does not currently support. So never use it.
• BT.709 - Suitable for 720p (HD Ready), 1080i and 1080p(FHD) resolutions.
• BT.2020 - Suitable for 2160p (UHD), 4096x2160 (4K DCI).
• Auto - Selects the correct profile based on the above rules for your selected resolution.