UMC libraries for AAC Encoder and support for Constant Bit Rate Mode

Helllo,

I have question regarding the Bit rate Mode for AAC Encoder. I am trying to encode the audio file using UMC::AAC_Encoder and I am looking for a way to encoder it in a Constant Bit Rate mode.Currently, it is encoding in a Variable Bit Rate Mode as default, but I looked around UMC manual and there is no parameter declared in AAC encoder that can control the bit rate mode to constant or variable. So my question is does Intel libraries support Constant Bit Rate mode for AAC encoding ? If it does then how to do it.

I know for MP3 there is a parameter called mode which can be assigned by using MP3EncodeParams.mode = "0" or "1", but couldnt find the similar thing in AAC.

Thanks for your help.