While the Cargo.toml specifies a license (or licenses), crates also typically include a copy of that license (or licenses) as LICENSE files. This github repo contains the license files but the actual symphonia crates do not.

Can the crates please include the license files moving forward? I'm happy to help however I can as well.

As a consumer of third party open source libraries, Chromium is aiming to ensure we include the license files in our own source tree for all of our third-party dependencies, and the symphonia crates are some of a few for which they are missing. Chromium issue: crbug.com/369075726