Cargo Features

[dependencies]
jpeg-encoder = { version = "0.6.1", default-features = false, features = ["std", "simd", "benchmark"] }
default = std

The std feature is set by default whenever jpeg-encoder is added without default-features = false somewhere in the dependency tree.

std default simd?
simd = std
benchmark

DO NOT USE THIS IN PRODUCTION. Expose several internal functions for benchmark purposes.