Hello. Question about gsm0503_tch_ahs_decode function in gsm0503_coding from libosmocore ( http://ftp.osmocom.org/api/latest/libosmocore/coding/html/group__coding.html...) . Can you please explain wat's "int odd" mean? If it's odd frame number then which of the 8? And why to function need 8 burst if in function loop to 4?