SDK / exoplayer

This CL adds support for seeking within PS streams by using binary search. For
any seek timestamp, it tries to find the location in the stream where SCR
timestamp is close to the target timestamp, and return this position as the
seek position.

Github: #4476.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206787691

Currently, we have KeyStatus, KeyRequest and ProvisionRequest as interface, so we can use
custom implementation for purpose such as wrapping native objects. However, these interfaces and the corresponding default classes are only used to bundle data, and in all existing implementation (including native code), it's just as efficient to just use the Java default implementation. Therefore we can just get rid of the interfaces, and change
the interfaces into classes with the default implementation.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206765389

There is some risk associated with this change, as audio track buffers come from
shared memory and limits may be device-specific. I've tested these sizes on
Nvidia Shield TV and Nexus Player on various builds. The maximum size allocated
is about 800 KB. We could implement support for retrying creating the audio
track if it fails to initialize, but it seems preferable to avoid the extra
complexity required to do that unless we know it's necessary to work around
device-specific limitations.

Issue: #3803

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206749222

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206747144

Issue:#4573

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206737252

The platform fix was merged into O MR1, not O. Nexus Player has
not received this build.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206734342

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206725219

Add TeeAudioProcessor that doesn't modify the input audio but writes it to an
AudioBufferSink, and WavFileAudioBufferSink for writing audio to a .wav file.

This is intended to be used for diagnostics and debugging.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206717458

MatroskaExtractor was checking for INDEX_UNSET as the sample count for buffers
not containing syncframes, but actually 0 was returned for these. Theoretically
this could prevent us starting to play a TrueHD stream as we wait until we can
read the sample count from a syncframe before accepting the audio in
DefaultAudioSink, but it seems that rechunking avoided this issue arising in
practice.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206575462

The looping media source doesn't convert the media period id to the externally
visible media period id. And the merging media source reports media period
creations multiple times which will break listeners assuming a media period
with a specific id will only be created once.

Also amend the doc for MediaSource.createPeriod to reflect that media periods
created in parallel do not actually have the same id.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206327241

Period transitions with non-zero start position happen too early as the
playing period is advanced as soon as the renderer offset is reached not
taking into account that the start position needs to be added to that.

Issue:#4583

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206310328

Issue: #4591

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206307948

AudioTrack checks the channel configuration against a mask of allowed channels.
Before Android M the check in getMinBufferSize would always fail for 8 channel
output.

For Android L constants are available to build the required channel
configuration for a conventional 7.1 setup and these constants are part of the
allowed channels mask, so switch to using them.

Before Android L the constants for 7.1 aren't in the allowed channels mask, so
discard channels to give a 5.1 stream.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206307892

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206304655

Remove minLoadableRetryCount from HLS components in favor of
LoadErrorHandlingPolicy#getMinimumLoadableRetryCount.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206298419

If compiled with eac3, audio/eac3-joc stream 5.1 bed-channels
can be decoded. The stream will be decoded as 2-D rather than
3-D.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206296930

The new method allows to add TransferListeners after the DataSource
has been created. Most implementations just forward to their wrapped
upstream DataSource. Implementation which directly read data implement
BaseDataSource instead.

Also removes the temporary default no-op implementation in DataSource.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206289986

This helps to distinguish between the MediaPeriodId the deferred media period is being
created with and the MediaPeriodId which is used to create the actual underlying period.

This serves two purposes:
1. The error reporting of ad prepare errors uses the correct media period id (the
   externally visible ad media period id).
2. The transition to using media period uid instead of indices is simplified.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206160463

Using our own no-op castNonNull prevents linking into checkerframeworks library.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206152148

Inner classes generally has generic names and they make sense when they
are considered with the top level class they appear in.

When this setting is disabled, Android Studio inserts import for the top
level class and append the top level class's name before the reference
to the inner class name.

NO_SQ

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206127763

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206119357

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206021873

Rewrite FlacBinarySearchSeeker and extract out the core binary search algorithm
into BinarySearchSeeker class so it can be re-used for other formats.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206012900

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205988261

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205972857

This changes the default initial bitrate estimate to be country (group) and
network type specific. The existing overwrite still works as before and new
overwrites for the country or specific network types are provided for
customization.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205972705

Issue: #4468

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205821059

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205816544

While the timeline is empty, we keep a dummy MediaPeriodId in PlaybackInfo with
a period index of 0. We leak this MediaPeriodId in actual use in these
situations:
 1. When issuing an IllegalSeekPosition after preparation. The timeline becomes
    non-empty, but the media period id stays at its dummy value.
 2. When re-adding sources to a previously empty timeline. The dummy period id
    is used as the start position for the new non-empty timeline.

This change makes:
 - the constructor of PlaybackInfo using those dummy values more explicit
 - prevents the issues above by using the correct default position in the new
   non-empty timeline for the above mentioned cases.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205803006

All known instances use DataSource as generic type and thus code can be simplified
by removing the generic type altogether.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205798542

Issue:#4535

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205722036

Using this surface it's possible to play 360 videos in a non-VR Activity that is
affected by phone and touch input.

RELNOTES=true

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205720776

This reduces the number of calls to the DataSpec constructor and minimizes the number of files that need to be updated when adding a new DataSpec parameter (ex: followup []

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205719005

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205660355

As the manifest and media data sources can be the same now, we can provide
a simplified constructor with just one data source factory.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205658046

This simplifies the player setup and prevents using deprecated methods in the demo.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205642981

This allows to automatically forward bandwidth estimate events to
AnalyticsListeners.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205642752

This removes the need to populate the entire period for the common usage of
getting the uid from the period.

Also add default implementation to get period by uid.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=205638265