SDK / exoplayer

Now DownloadManager is responsible for starting and stopping DownloadThreads.

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Issue: #4468
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Including ParametersBuilder and TrackSelectionOverride.

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If there is data after the last samples in the container, we may request
continue loading after the last samples have been read but before the load has
completed. In this situation the buffered position is returned as
Long.MAX_VALUE, which prevents continuing loading, yet the media period is not
treated as fully buffered because its buffered position is not
C.TIME_END_OF_SOURCE.

PiperOrigin-RevId: 231406964

We can keep the reading media period and continue playing if we haven't read
beyond the new duration. Otherwise, we can keep the period, but need to reset
the renderers as we already read too far.

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On older API levels it's also necessary to implement
openOrCreateDatabase, to be called by SQLiteOpenHelper.

PiperOrigin-RevId: 231387559

It better describes what the class does. More importantly, we've had
inconsistent class names since we added offline support, for which we
added ProgressiveDownloader ("ExtractorDownloader" doesn't make any
sense). We could really do with aligning the names for clarity.

(Sorry)

PiperOrigin-RevId: 231387268

Issue:#2867
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These methods take a list of languages to be downloaded and add selections for
each of the languages.

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The subclasses only call specific constructor combinations and can easily
replaced by static methods.

PiperOrigin-RevId: 231385606

This requires to prepare the media source and the periods in a small helper similar
to the metadata retriever. It also gets rid of the need to have abstract protected
methods to load the manifest, to extract the track groups and to convert to stream keys,
as this can now be handled by the media period.

PiperOrigin-RevId: 231385590

PiperOrigin-RevId: 231385563

Currently, we remove all variants if none of the stream keys contains any
variants. This causes HlsMediaPeriod to throw exceptions as it expects at least
one variant.

Change it to support master playlists without variants.

PiperOrigin-RevId: 231385547

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Converting a single track selection to stream keys is only possible if the output
is independent from other track selections being made.

This is not the case for DASH and HLS embedded track groups which should select the
already selected primary track if possible (and thus needs to know  whether a primary
track group is selected).

Also, update the test method to take a period index.

PiperOrigin-RevId: 231385490

This should be removed after releasing.

PiperOrigin-RevId: 231380393

The way it is currently, it's very unclear that an operation on the
version table will correctly belong to a transaction in code such as
this, taken from DefaultDownloadIndex:

writableDatabase.beginTransaction();
try {
  writableDatabase.execSQL(...);
  versionTable.setVersion(...);
  writableDatabase.setTransactionSuccessful();
} finally {
  writableDatabase.endTransaction();
}

This change explicitly passes the database, to make it obvious that
the operation will really go into the same transaction:

writableDatabase.beginTransaction();
try {
  writableDatabase.execSQL(....);
  VersionTable.setVersion(writableDatabase, ...);
  writableDatabase.setTransactionSuccessful();
} finally {
  writableDatabase.endTransaction();
}

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Goal: reduce binary size.
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Float output is only possible from API 21, but the high-res int
to float conversion path was checking for 32-bit PCM not float
output capability.

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This will allow CachedContentIndex to start using database
storage without us having to change the SimpleCache and
CachedContentIndex constructors to require a Context or a
DatabaseProvider.

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This brings in a memory leak fix.

Issue: #4114
PiperOrigin-RevId: 230880521

If are allowing changing durations of periods, we shouldn't use the end position
of clipped content as part of the id as it may change. This change moves the end
position back to MediaPeriodInfo and adds the next ad group index to the id
instead to ensure we still have unique ids for all content parts.

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The combination of pre-16 API levels accounting for ~0.5% of the device
population, and that the most important components in ExoPlayer (e.g.
the MediaCodec renderers) have always required API level 16, mean it's
very unlikely this will negatively impact on anyone.

PiperOrigin-RevId: 230701808