http2 custom encoder and decoder

[drv drv]

hi,

There is a http2 protocol simulator. It can be client and/or server. I would like to set the encoder and decoder tablesize to 0.

i.e. on client side  I managed to create my own clientConn with transport. NewClientConn(conn)
But all field in clientConn type is unexported.
In this case how suppose to use custom hpack.NewDecoder and hpack.NewEncoder?

(the reason is that if the headers are compressed and a tcpdump is started "on the fly", the headers cannot be decoded by wireshark)

thanks