olly c1dc802050 Make defaultLicenseUrl optional
Some content types always provide the license URL in the media.
The PlayReady example in the demo app doesn't provide a default
license URL for this reason, as an example.

#minor-release

PiperOrigin-RevId: 340125784
2020-11-02 23:00:57 +00:00
..
2020-11-02 23:00:57 +00:00
2020-11-02 23:00:57 +00:00
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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.