SDK / exoplayer

By default played ad groups are shown faded out. This helps the user know
whether they will see an ad when they seek to a given position.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=161098491

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160955809

Rtmp client

This CL aims that the player fails upon:

- Playlist that don't change in a suspiciously long time,
  which might mean there are server side issues.
- Playlist with a media sequence lower that its last snapshot
  and no overlapping segments.

This two error conditions are propagated through the renderer,
but not through MediaSource#maybeThrowSourceInfoRefreshError.

Issue:#2872

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160899995

1. maybeRenotifyVideoSizeChanged should report reported* variables
2. Add check into maybeNotifyVideoSizeChanged to suppress reporting
   in the case that the width and height are still unknown.

Issue: #3007

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160879625

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160873280

This cleans up test the TestUtil class that in large parts consisted of
assertions for Extractor tests.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160829066

The deprecated methods will be removed as soon as HLS is migrated
to use the new ones.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160827936

Issue: #2985

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160827532

This also ensures that TimelineAsserts only contains assert methods.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160827271

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160825705

They serve the same purpose. One was defined as single window, multi-period
timeline, while the other was a multi-window, single-period-each timeline.

The combined FakeTimeline uses TimelineWindowDefinitions which allow multi-
window, multi-period fake timelines.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160808844

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160663100

It was a bit strange how it returned something via the return
value and something else via the "out" variable, and doing it
this way wasn't even saving any allocations.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160645640

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160638478

The StubMediaSource was a subset of the FakeMediaSource.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160638245

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160632943

Fake ExoPlayer componenets used within ExoPlayerTest.java can be useful for
other test classes and are therefore made available in testutils.
They can also be merged with other existing fake components.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160632908

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160631095

Some parts of TimelineTest provided common assertions and helper classes for
other tests. As such, they better fit into testutils. In line with other
assertion methods, the TimelineVerifier class has been converted to a set of
static assertion methods.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160629797

Issue: #2957

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160628086

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160543009

(Related to GitHub #1706)

When the timeline becomes empty, the playback state transitions to "ended".
When the timeline becomes non-empty again, exceptions are thrown because MSG_DO_SOME_WORK is still regularly sent and media periods are getting prepared.

This change ensures that no MSG_DO_SOME_WORK messages are sent in "ended" state.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160537147

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160537100

These changes are in part related to handling playback of mixed clear
and encrypted content, where we might want to use a secure decoder
throughout, but only have drm init data and only care about the state
of the DrmSession during playback of encrypted parts.

- requiresSecureDecoderComponent became unnecessary when we added
  ExoMediaCrypto, which provides a layer in which requiresSecureDecoderComponent
  can be overridden.
- Relaxed requirements for obtaining the MediaCrypto. It's helpful
  to allow retrieval in the error state, since it can be used to
  instantiate a decoder and play clear samples.
- Deferred throwing of errors in renderer implementations. As long as
  we can get a MediaCrypto, we should init the codec. We can also
  play clear samples without failing if playClearSamplesWithoutKeys is
  true, regardless of the errors state.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160536365

This base class will be used to extend HlsDownloaderFactory from.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160523335

Issue:#2930

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160520480

Issue: #2873

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160520136

(GitHub issue #1706)

The media source allows adding or removing child sources before and after prepare() was called.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160516636

This is currently happening after toggling the repeat mode. This is line with
the rest of the implementation which requires a seek operation to resume
playback.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160516449

This also adds support for seeking in periods with midroll ads.

Remove Timeline.Period.isAd.

Issue: #2617

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160510702

Two of MediaPeriod's methods are only called after the media period has been
prepared. Added this to JavaDoc of these method to simplify implementations.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160510373

Modified old testRemoveAction to test removing content after it's fully downloaded.
Added a new testRemoveBeforeDownloadComplete which tests removing content before it's fully downloaded.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160507573

This base class will be used to extend HlsDownloader from.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160505710

Also remove updateScrubberState as it doesn't do anything useful.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160496133

- Restore making the playback controls visible on any key press.
- Turn anti-aliasing on for drawing the scrubber circle. It looks
  really ugly on some devices if you don't do this.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160413777

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=160412354