Would you please add support for custom message encoding ?

[godgnidoc]

Hi awesome foxglove team, would you please add support for custom message encoding via the API of extension authoring ?

There's a custom encoding called portable is in use among our system. We'd like to keep it simple to use the same MCAP file for both injecting and visualizing.

The portable encoding supports dynamically data access via binary schema who carraies the reflecting information.

We were expecting an interface for us to register one or more handler for messages transported using our custom encoding. Like this:

export function registerEncodingHandlerFactory( arg: RegisterEncodingHandlerArg )

export interface RegisterEncodingHandlerArg {
  encoding: string // The name of the encoding
  makeHandler(schema: Uint8Array): ((message: MessageEvent<T>) => MessageEvent<unknown>)
}

Thank you for your time.

[godgnidoc]

Sorry for the ambigours code above, the template argument T should be Uint8Array on the lambda parameter.

export function registerEncodingHandlerFactory( arg: RegisterEncodingHandlerArg )

export interface RegisterEncodingHandlerArg {
  encoding: string // The name of the encoding
  makeHandler(schema: Uint8Array): ((message: MessageEvent<Uint8Array>) => MessageEvent<unknown>)
}

I have no idea if it is possible and proper to expose an interface like this. If I made any mistake, I apologize for that.

[godgnidoc]

This feature is no longer needed, we should turn to the serialization frameworks which are well known.