pAlias support

[saiprasad-switchon]

Describe the bug
When trying to get supported features, the Non-Bayer feature ‘NoiseReduction’ shows that it is available, even when I’m selecting Bayer-8 in Image format. Also it is returning bounds of -inf and inf, whereas the other feature in its Node Group , ‘SharpnessEnhancement’ returns 0.0

To Reproduce
Connect a basler camera and choose the Bayer-8 color format.

Expected behavior
The feature should be shown as unavailable

Camera description:

• Manufacturer: Basler
• Model: Basler-267601797A7F-24738431
• Interface: USB3

Platform description:

• Aravis version
• OS: Ubuntu 22.04
• Hardware: x86_64

bsler.xml

[EmmanuelP]

Probably related to the use of pAlias. N388 is the node that has a IsAvailable property:

  <Converter Name="NoiseReduction" NameSpace="Custom">
    <ToolTip>Amount of noise reduction to be applied.</ToolTip>
    <Description>Amount of noise reduction to be applied. The higher the value, the less chroma noise will be visible in your images. However, excessively high values may result in image information loss.</Description>
    <DisplayName>Noise Reduction</DisplayName>
    <pAlias>N388</pAlias>
    <Streamable>Yes</Streamable>
    <FormulaTo>EXP(FROM*4*LN(2))</FormulaTo>
    <FormulaFrom>LN(TO)/(4*LN(2))</FormulaFrom>
    <pValue>N388</pValue>
    <Representation>Logarithmic</Representation>
    <DisplayNotation>Fixed</DisplayNotation>
    <DisplayPrecision>5</DisplayPrecision>
    <Slope>Increasing</Slope>
    <IsLinear>Yes</IsLinear>
  </Converter>
  <Integer Name="N388" NameSpace="Custom">
    <pIsImplemented>N389</pIsImplemented>
    <pIsAvailable>N390</pIsAvailable>
    <pIsLocked>N391</pIsLocked>
    <pValue>N392</pValue>
    <pMin>N393</pMin>
    <pMax>N394</pMax>
    <pInc>N395</pInc>
    <Representation>Logarithmic</Representation>
  </Integer>

[EmmanuelP]

<pAlias> points to another node which describes the same feature in a different manner. This
feature will be mainly used in a GUI: a Category might be replaced by its alias if not all
members are shown; an integer and a  flat node might be aliases of each other if they show the
raw and the abs value of a feature.

What are we supposed to do with this documentation ? :(
It does not say we have to use properties of the alias if they are not defined in the original node.