mediatransportutil

var (
	ErrRttNoLastSenderReport      = errors.New("no last sender report")
	ErrRttNotLastSenderReport     = errors.New("not last sender report")
	ErrRttNoLastSendTime          = errors.New("no last sent time")
	ErrRttAnachronousSenderReport = errors.New("anachronous sender report")
)