SDK / exoplayer

Also fix internal build by adding some methods.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213828434

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213824217

After a period transition the first buffer queued has the sum of previous period
durations added to its source presentation timestamp. These durations take into
account gapless edits, but the check on the timestamp was based on the submitted
frame count, not the frame count after trimming.

This change fixes an issue where audio/video would gradually drift apart due to
accumulated error in the audio track position, which could lead to freezing due
to the audio renderer stopping being ready and switching to the standalone media
clock.

Issue: #4559

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213819908

Trackselector filter on framerate

Fixed and random track selection were still overriding the deprecated version
of updateSelectedTrack.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213637728

The only use of track selection factories is as adaptive track selection factories
in the DefaultTrackSelector. Using the fixed track selection factory here is dangerous
as it will throw if more than one track is selected.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213637500

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213599127

With default of value set to -1, every single dropped frame is reported because of expression: if (droppedFrames >= maxDroppedFramesToNotify) {  maybeNotifyDroppedFrames(); }

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213502573

The decoder doesn't claim to be adaptive, but if we're staying
in the same resolution we'll try and re-use the decoder anyway.
The H264 decoder can't handle this case on the Tab 4 can't deal
with this case.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213478378

This matches the non-gapless case.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213462936

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213451163

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213443047

This doesn't break apps which violate this policy. But it creates a clear
warning which is also likely to be reported in analytics tools.

Issue:#4463

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213442510

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213439145

The DefaultTrackSelector can now be constructed without leaving out a
vital part of the initialization. This allows this new simple factory method.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213438163

This reduces the possiblity of regressions.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213436912

Currently there is no way to disable (or reduce) the logcat output generated
by ExoPlayer.

Issue:#4665

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213421072

This allows creating multiple HLS media sources from a single Factory, as
required by the interface.

Issue:#4814

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213297850

Issue: #4824

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213285790

ExoPlayer can be run on a background thread, but some components (UI and IMA)
only support players on the main thread. This adds some documentation and
assertions for that.

To simplify assertions, this also moves the getApplicationLooper method from
ExoPlayer to Player.

Issue:#4439

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213280359

Kotlin will throw NPE whenever a method returns null or an interface is
called with a null parameter and the respective values are not marked as
@Nullable.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213262886

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213248388

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213245186

To check the validity of a window index it needs to be compared with a greater
or equal sign to the window count.

Issue:#4822

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=213234403

Also prevent an unnecessary allocation when the removed range is empty.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212993427

Not having this annotation may cause Kotlin implementations to fail.

Issue:#4802

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212980643

If we can select a track that has a strictly higher score than a
selection already made for a renderer of the same type, we should
prefer it.

Issue: #4711

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212835895

- Make addMediaSource a specific case of addMediaSources.
- Make clear a specific case of removeMediaSourceRange.
- Make removeMediaSource a specific case of removeMediaSourceRange.
- Remove the unnecessary message handling and constants.
- Move a method so that depending appears before depended.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212809667

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212790665

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212644046

Issue: #4771

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212623142

Issue: #4185

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212619419

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212443793

This allows to update the shuffle order after the ConcatenatingMediaSource
has been created. ShuffleOrder objects should be immutable to ensure thread
safety and thus there is no way to do this currently.

Issue:#4791

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212443146

- Fixes the referenced issue.
- Provides more consistent behavior for the edge case of empty
  chunks (i.e. chunks containing now samples). Format changes
  will now always be reported for such chunks, unless the empty
  chunk is discarded from upstream before there's a chance to
  do so.

Issue: #4533

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212443043

When the stream is changed in the audio renderer, the timestamps of the
samples can no longer be expected to match the calculations in the AudioSink.

This change tracks the samples at which the stream is changed and notifies the
AudioSink of the discontinuity.

Issue:#4559
Issue:#3829

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212435859

When a reset is pending the sample queues normally contain pre-seek
samples (which will be emptied when a pending load is canceled). The
position passed to discard will be a post-seek position. I don't
think anything bad happened in any of the cases being changed, but
discarding is unnecessary in such cases, and reasoning about such
cases is difficult.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212435556

- This makes it so that onDownstreamFormatChanged will occur before the corresponding
  renderer event. This was not previously the case, since the renderer would typically
  read the format (and report its event), then a sample (causing the
  onDownstreamFormatChanged event).
- The remaining ones to update are ChunkSampleStream (DASH + HLS), which will be done
  in a way that fixes #4533, and HLS.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212434874

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=212432661