Merge commit '9077f8ec931a4c080948a85ce2e0f793f65e9b62' into gingerbread-plus-aosp * commit '9077f8ec931a4c080948a85ce2e0f793f65e9b62': Not all audio source has the drift time information
Merge commit '9077f8ec931a4c080948a85ce2e0f793f65e9b62' into gingerbread-plus-aosp * commit '9077f8ec931a4c080948a85ce2e0f793f65e9b62': Not all audio source has the drift time information