union member ast_frame_subclass::codec (instead of ast_frame_subclass::integer).
The old code caused an error in some environments, eg big endian Arm (armeb):
"__ast_read: Dropping incompatible voice frame on lcr/1 of format alaw ..."
Signed-off-by: Arnold Schulz <arnysch@gmx.net> Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>