3.2.5.2.1.3 Processing a Wave Encrypt PDU
The structure and fields of the Wave Encrypt PDU are specified in section 2.2.3.5.
Unlike a WaveInfo PDU and Wave PDU, the Wave Encrypt PDU contains the entire audio sample in its data field.
The wFormatNo field of the Wave Encrypt PDU is an index into the list of formats sent by the client in the Client Audio Formats and Version PDU. A value of i means the format of the audio data is the ith format of that list.
The client MUST decrypt the data before consuming it. How the server encrypts the data is specified in section 3.3.5.2.1.3.
This PDU MUST have been sent by the server over UDP.