Speex dev - Jul 2014 - multiple microphones and multiple speakers spport

Hi, 
I integrated the speex aec 1.2rc1 into android audio subsystem. Aec is working
fine.
But in the case of multiple microphones(2) and multiple speakers (2) case, it is
not working properly.
I think speex_preprocess_run() is not implemented for multiple speakers and
multiple microphones.
And speex_echo_cancellation() function also not fully implemented for mutiple
channels.

Can you please help me on this. 

Regards 
Ramesh 
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