
This allows to give TrackGroups an identifier. The underlying goal is to provide a way to make otherwise identical TrackGroups distinguishable. Also set this id in all internal sources that may produce identical TrackGroups in certain edge cases. Issue: google/ExoPlayer#9718 PiperOrigin-RevId: 413430719
ExoPlayer extensions
ExoPlayer extensions are modules that depend on external libraries to provide additional functionality. Browse the individual extensions and their READMEs to learn more.