Cargo Features

[dependencies]
alac = { version = "0.5.0", default-features = false, features = ["mp4", "caf"] }
default = mp4

The mp4 feature is set by default whenever alac is added without default-features = false somewhere in the dependency tree.

mp4 default = mp4parse

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.

caf implicit feature

Enables caf

caf:

Pure rust Core Audio Format container decoder

mp4parse mp4

Enables mp4parse ^0.10.0