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I'm using DownloadService from Exoplayer to download HLS videos. https://exoplayer.dev/downloading-media.html

The links I'm supplying are pre-authorized links for downloading HLS videos. Sometimes I'm seeing an app crash on 401. Stack below:

Exception com.google.android.exoplayer2.upstream.HttpDataSource$InvalidResponseCodeException: Response code: 401
  at com.google.android.exoplayer2.upstream.DefaultHttpDataSource.open (SourceFile:47)
  at com.google.android.exoplayer2.upstream.DefaultDataSource.open (SourceFile:21)
  at com.google.android.exoplayer2.upstream.StatsDataSource.open (SourceFile:3)
  at com.google.android.exoplayer2.upstream.DataSourceInputStream.checkOpened (SourceFile:2)
  at com.google.android.exoplayer2.upstream.DataSourceInputStream.open
  at com.google.android.exoplayer2.upstream.ParsingLoadable.load (SourceFile:9)
  at com.google.android.exoplayer2.upstream.Loader$LoadTask.run (SourceFile:6)
  at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1167)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:641)
  at java.lang.Thread.run (Thread.java:764)

I tried to reproduce this by giving expired links. The exoplayer downloader is handling it gracefully. I'm confused now where to look ? What could be the possible reason ?

Here's the implemenatation for DownloadManager, where I'm giving Executor and DataSource:

private fun getManager(
    context: Context,
    databaseProvider: ExoDatabaseProvider,
    simpleCache: SimpleCache,
    downloadListener: OPDownloadListener,
    threadPoolSize: Int
): DownloadManager {
    val manager = DownloadManager(
        context,
        DefaultDownloadIndex(databaseProvider),
        DefaultDownloaderFactory(
            CacheDataSource.Factory()
                .setCache(simpleCache)
                .setCacheKeyFactory(OPDownloadCacheKeyFactory())
                .setUpstreamDataSourceFactory(getHttpDataSourceFactory(context)),
            Executors.newFixedThreadPool(threadPoolSize)
        )
    )
    manager.addListener(downloadListener)
    manager.maxParallelDownloads = MAX_PARALLEL_DOWNLOADS
    return manager

I was not expecting the crash, and if it is, it should happen every time.

Akshansh Choudhary
  • 11
  • 2

1 Answers1

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I found the issue. This is happening during playback. If you supply an expired link to exoplayer playback, following error stack comes:

     Caused by: com.google.android.exoplayer2.upstream.HttpDataSource$InvalidResponseCodeException: Response code: 401
        at com.google.android.exoplayer2.upstream.DefaultHttpDataSource.open(DefaultHttpDataSource.java:382)
        at com.google.android.exoplayer2.upstream.DefaultDataSource.open(DefaultDataSource.java:258)
        at com.google.android.exoplayer2.upstream.StatsDataSource.open(StatsDataSource.java:84)
        at com.google.android.exoplayer2.upstream.DataSourceInputStream.checkOpened(DataSourceInputStream.java:99)
        at com.google.android.exoplayer2.upstream.DataSourceInputStream.open(DataSourceInputStream.java:62)
        at com.google.android.exoplayer2.upstream.ParsingLoadable.load(ParsingLoadable.java:174)
        at com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:409)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
Akshansh Choudhary
  • 11
  • 2