How can I implement the long time reference mechanism for AV1 in RTC mode?

[asplin...@gmail.com]

hi,buddies

I'm using AV1 based on libaom in WebRTC library,and I want to implement the long time reference mechanism for the AV1 encoder,so far as I know,the only way is to make encoded frames reference golden frame only.

How can I do that ?Appreciated to have your answer.