Cargo Features

Extcap has no features set by default.

[dependencies]
extcap = { version = "0.4.0", features = ["async-api", "ctrl-pipe"] }
async-api ctrl-pipe? = futures

Affects extcap::ExtcapReceiver, extcap::ExtcapListener.capture_async

ctrl-pipe = async-api

Enables fs of tokio, codec of tokio-util

Affects extcap::ExtcapListener.capture_async_with_ctrl

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

futures async-api?
tokio ctrl-pipe?
tokio-util ctrl-pipe?