SDK / exoplayer

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194902748

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194882787

Issue:#4187

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194829857

It's no longer necessary to stash a reference to the
error yourself. This also correctly handles the case
where setPlayer is called with a player that's already
in an error state.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194828387

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194827787

This change is intended to resolve overloading of "Download",
where a DownloadTask could be an actual download task, or a
remove task.

Also cleaned up some documentation.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194815058

Cronet now returns an unmodifiable list, so we need to copy it

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194790506

- Redefine Scheduler interface to better describe what implementations
  do. The previous version was too general, in that it allowed concrete
  DownloadService implementations to pass different Requirements to
  the base class and to the Scheduler. It's also difficult to see how
  that version could ever support dynamic updates to Requirements, which
  is probably a feature we'll need to add quite soon.
- Fix a (probably theoretical) problem where static fields in
  DownloadService assumed only a single concrete implementation.
- Stop using PlatformScheduler pre-API-21 in demo app, because it will
  fail.
- Define default Requirements that require network.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194785751

Our current custom looper implementation tries to handle all messages
including those sent to the main looper. However, the main looper does not
use our doLoop implementation and thus messages never get executed.

This adds a check whether the target looper is the main looper and if so,
uses the default message forwarding implementation.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194779214

- It's wasted effort
- DataSpec reconstruction fails because creating a DataSpec with 0
  length isn't allowed.
- Also better document DataSink open/close, to be like DataSource.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194778132

This replaces the existing listeners and provides some additional meta data
for each event.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194770421

- Add ACCESS_NETWORK_STATE to core library. It seems fairly fundamental. We should
  also be using it elsewhere (e.g. to fail fast if there's no network).
- Add annotation to force apps using PlatformScheduler to declare RECEIVE_BOOT_PERMISSION

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194763051

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194761771

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194691625

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194535300

Add a TestRunner for MetadataRetriever that roughly follow the test runner for
ExoPlayer. The TestRunner supports scheduling test steps in a sequence, compare
expected callbacks with actual callbacks, and block the test until it is done.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194518738

- When calculating the downloaded percentage in DASH, there was no
  way to disambiguate between 0 of 0 segments being downloaded because
  there are no cached indexes (i.e. 0% downloaded) and 0 of 0 segments
  being downloaded because the index defines 0 segments (i.e. 100%
  downloaded).
- Also replace use of NaN with a named constant.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194453202

Supports extracting data from AMR container format for both narrow and wide
band formats. Also added AmrExtractor as one of the default extractor to be
used in DefaultExtractorsFactory.

GitHub: #2527.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194407507

When we play downloaded content, we rely on the manifest filters
to produce a manifest that contains only the content that was
downloaded. It makes sense just to use the same filters during
download too, so we don't have to worry about any implementation
differences.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194380704

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194373357

Issue:#4182

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194223312

- clone() wasn't performing a deep enough copy
- Sort tracks in overrides to improve equals check

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194220596

The generic type for track key will go away soon.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194220450

ProgressiveDownloader never implemented this properly, and we
don't use it in DownloadManager/DownloadService, both of which
use a polling model. A polling model is also what's used elsewhere,
for example to query the current playback position.

This is effectively doing the TODO in ProgressiveDownloader.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194214579

This removes a fair chunk of code. The line delta would
be more negative if it not for adding all the /* x= */
comments in DashDownloadActionTest!

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194136689

This makes it consistent with the other download types.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194089486

Using addAnalyticsListener provides the same functionality with additional
information.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194071893

This removes the need for separate String/Parcelable filter paths in
the demo app. Hopefully this is a temporary measure as we work
toward using track groups + consistent keys for all media types.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194065499

Some of the events are emitted by the media periods itself and their index may
not be available in the publicly accessible timeline yet.

To prevent this, we currently check for timeline.isEmpty() only. But this may
also happen for dynamic changes, e.g. when new sources are added in fast
succession and a manifest for one of the new sources starts loading before the
updated timeline is reported.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194057401

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193970940

exoghi/4056

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193960004

Playback will still fail if an input sample is larger
than 32K, but will now fail gracefully.

Issue: #4057

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193951955

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193942368

Also move NotificationUtil from the UI module to the core module.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193941401

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193940323

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193940183

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193938140

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193934212

- This is needed to make DefaultTrackSelector properly thread
  safe, and enable atomic changes to the selector that, for
  example, disable a renderer and enable another one at the same
  time.

- This change also saves/restores parameters and the start
  position in PlayerActivity, resolving the ref'd issue.

Issue: #3915

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193913350

This may differ from the format MIME type for audio/eac3-joc.

Issue: #4165

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=193906521