>  2019-01-20 10:45:33.050 1719-2408/com.test.test
> E/ExoPlayerImplInternal: Internal runtime error.
>     java.lang.IllegalArgumentException
>         at com.google.android.exoplayer2.util.Assertions.checkNotEmpty(Assertions.java:138)
>         at com.google.android.exoplayer2.upstream.DefaultHttpDataSource.<init>(DefaultHttpDataSource.java:148)
>         at com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory.createDataSourceInternal(DefaultHttpDataSourceFactory.java:81)
>         at com.google.android.exoplayer2.upstream.DefaultHttpDataSourceFactory.createDataSourceInternal(DefaultHttpDataSourceFactory.java:22)
>         at com.google.android.exoplayer2.upstream.HttpDataSource$BaseFactory.createDataSource(HttpDataSource.java:176)
>         at com.google.android.exoplayer2.upstream.HttpDataSource$BaseFactory.createDataSource(HttpDataSource.java:166)
>         at com.google.android.exoplayer2.source.ExtractorMediaSource.createPeriod(ExtractorMediaSource.java:161)
>         at com.google.android.exoplayer2.ExoPlayerImplInternal$MediaPeriodHolder.<init>(ExoPlayerImplInternal.java:1472)
>         at com.google.android.exoplayer2.ExoPlayerImplInternal.maybeUpdateLoadingPeriod(ExoPlayerImplInternal.java:1289)
>         at com.google.android.exoplayer2.ExoPlayerImplInternal.updatePeriods(ExoPlayerImplInternal.java:1138)
>         at com.google.android.exoplayer2.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:460)
>         at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:308)
>         at android.os.Handler.dispatchMessage(Handler.java:101)
>         at android.os.Looper.loop(Looper.java:164)
>         at android.os.HandlerThread.run(HandlerThread.java:65) 2019-01-20 10:45:33.177 1719-1719/com.test.test E/STATE_BUFFERING:
> Exoplayer 2019-01-20 10:45:33.180 1719-1719/com.test.test
> E/STATE_IDLE: Exoplayer