How to configure no of reference frame in encoder?

Hi All,

• We are using ezsdk_dm814x-evm_5_05_01_04.
• We are using H264 encoder available with this EZSDK.
• According to our understanding encoder can search the best MB motion prediction over multiple reference frames.
• We are looking for the parameter to set maximum reference frame the encoder is allowed to use.
• Can any one direct us how to set maximum number of reference frame for the encoder? 

Regards,

Jemish