
These methods document themselves only by referencing the Android's MediaDrm, which explicitly accepts null [1]. The implementation in FrameworkMediaDrm also handles nulls. [1] https://developer.android.com/reference/android/media/MediaDrm#setOnEventListener(android.media.MediaDrm.OnEventListener) PiperOrigin-RevId: 302007441
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.