aquilescanta 16c43c6bb7 Support undefined text track language when preferred is not available
Also slightly improve language normalization/documentation.

For this CL, it is assumed that null and "und" languages are different
entities. Once we fully tackle language tag normalization, we can decide
whether to normalize the "undefined" language.

Issue:#2867
Issue:#2980

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177008509
2017-11-27 21:28:34 +00:00
..
2017-11-22 18:21:13 +00:00
2017-11-24 17:27:35 +13:00
2017-11-21 13:07:46 +00:00

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.