
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 library
The ExoPlayer library is split into multiple modules. See ExoPlayer's top level README for more information about the available library modules and how to use them.