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Wwise SDK 2022.1.17
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To create the backend for your plug-in, you need to create a class derived from AK::Wwise::Plugin::AudioPlugin. This base class offers the most basic methods for a Wwise Authoring plug-in, including a function to write to a SoundBank.
The main model for your plug-in is the Property Set, but Custom Data can also be managed by the plug-in backend.
Generating SoundBanks
You must code your plug-in to store its current settings into banks when requested. You can do this by implementing the AK::Wwise::Plugin::AudioPlugin::GetBankParameters() method.
The parameters are written into the SoundBank as a data block. The block is then loaded directly from the SoundBank into your sound engine plug-in's parameter structure. Therefore, you must write the parameters in the same order they are declared in the parameter structure of your sound engine plug-in. For more information, refer to Parameter Node Interface Implementation.
For example, consider the following parameter structure:
The following implementation of AK::Wwise::Plugin::AudioPlugin::GetBankParameters() gets the current value of each property and then uses the appropriate method to write the value with the AK::Wwise::Plugin::DataWriter object received as a parameter. These actions are performed in the same order in which the members are defined in your parameter structure.
 | Note: To get the current value of a property, use the getter functions provided by AK::Wwise::Plugin::PropertySet. The type requested must exactly match the type specified in the XML. |
For more information about available methods for writing different types of data, refer to AK::Wwise::Plugin::DataWriter.
Managing Licenses
During SoundBank generation, Wwise queries the plug-ins for the license status they implement with the AK::Wwise::Plugin::License interface. The plug-in can implement AK::Wwise::Plugin::License::GetLicenseStatus to return one of the enumerated values in AK::Wwise::Plugin::LicenseStatus. Additionally, the plug-in can return a message with an associated severity, to be shown in the SoundBank generation log.
Returning LicenseStatus_Unlicensed or LicenseStatus_Expired will prevent the plug-in from being included in a SoundBank.
Plug-ins can implement their own schemes for license validation. Please note that you should never query a server synchronously in this function. The function needs to return an answer immediately.
If your plug-in is registered with Audiokinetic, you can leverage the license system of Wwise. Use the following implementation, which looks up the license status in the Wwise Project License:
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