SDK / exoplayer

We will be migrating our track selection UI components to be
based on TracksInfo. We need DownloadHelper to expose TracksInfo
to make it compatible with such components.

PiperOrigin-RevId: 432474487

This change fixes two bugs where MediaSessionServe shows a notification
with the Play icon but tapping it will not start playback:
1. After playback ends: we need to seek to the beginning of the media
   item.
2. After adding media items to the player but not starting playback:
   We need to call Player.prepare() too.

PiperOrigin-RevId: 432469953

PiperOrigin-RevId: 432461547

addTrackSelectionForSingleRenderer takes a list of legacy overrides,
which are then set on the supplied parameters one at a time to run
track selection. This allows multiple overrides for a single track
type to be applied in the download use case, despite it not being
possible to place such overrides directly into a single parameters.

For new style overrides, multiple overrides for the same track type
can be placed directly into a single parameters. Therefore we'll be
able to replace use of addTrackSelectionForSingleRenderer with use
of addTrackSelection, which is a much cleaner API. For this to work,
we need to make DownloadHelper apply multiple overrides in this case.

PiperOrigin-RevId: 432459834

This will allow for easier customisation of the additional tasks
performed by the test runner, such as calculating metrics like SSIM.

PiperOrigin-RevId: 432434850

PiperOrigin-RevId: 432430345

These were added in
https://github.com/androidx/media/commit/b57aa34b66554097b0ea2296b05c828847e1fdd2
and then not removed when the rest of the code was removed in
https://github.com/androidx/media/commit/0b0277af5001e5e669b007d33dcfffbf6e9d26db

PiperOrigin-RevId: 432419684

These should have been removed as part of https://github.com/androidx/media/commit/1391b7c65dab1856dad363dff7c0a250245f1671, since we no
longer officially support overriding the layout file for this class.

This class is known as StyledPlayerView in exoplayer2.

#minor-release

PiperOrigin-RevId: 432411322

The MockPlayer has a single CountDownLatch field and multiple boolean
flags that track if a player method was called. Upon calling the methods
the latch count. Tests set the latch count to match exactly with the
number of expected player interactions then block the test thread until
the latch reaches zero and assert the respective method flags are true.

This is subject to false positives. If the underneath implementation
changes and call more player method, then the test thread will unblock
as soon as a certain number of interactions is performed, which may be
less than what the test expected originally. However, the test may stil
pass if the player thread had enough time to update the expected method
flag.

This change removes the single CountDownLatch and the boolean flags and
instead it adds APIs to query the MockPlayer if a method has been called
and await until a method is called. Internally, the MockPlayer has a
ConditionVariable per method.

PiperOrigin-RevId: 432399077

#minor-release

PiperOrigin-RevId: 432189509

This method is no longer needed since we added SubtitleConfiguration#id
in https://github.com/androidx/media/commit/59d98b9a4e2381647f3e4552b6935bcca1be6f89.

Issue: google/ExoPlayer#10016

#minor-release

PiperOrigin-RevId: 432169262

DownloadHelper is in the ExoPlayer module, so there's no reason
why it can't use ExoPlayer specific track selections. That said,
we want our UI components to operate on generic
TrackSelectionParameters, and we want such UI components to be
useful for selecting tracks for download. To keep this interop,
it's necessary to have DownloadHelper accept generic
TrackSelectionParameters, or to require application code to
convert them. The first approach seems preferable!

PiperOrigin-RevId: 432158846

#minor-release

PiperOrigin-RevId: 432154626

PiperOrigin-RevId: 431969914

This constructor always does the wrong thing for non-adaptive groups
containing more than 1 track, because it'll incorrectly generate an
adaptive selection. Replace it with a constructor for specifying a
single track within the group instead.

PiperOrigin-RevId: 431673458

PiperOrigin-RevId: 431658068

Only log GL exceptions in GlUtil if they aren't thrown. Otherwise,
it's up to the caller whether or not to log them to avoid logging them
twice.

PiperOrigin-RevId: 431657397

Destroying the context destroys all of OpenGL (see
https://www.khronos.org/opengl/wiki/OpenGL_Context), so deleting
textures is redundant.

PiperOrigin-RevId: 431653728

This test tests the same cases as the FrameEditorDataProcessingTest
as currently the main FrameEditor functionality is to apply a
transformation matrix using a TransformationFrameProcessor.

PiperOrigin-RevId: 431642066

Test list can be structured so tests don't need to be in different
classes, cleaning up the location of new test cases.

PiperOrigin-RevId: 431492941

PiperOrigin-RevId: 431479473

PiperOrigin-RevId: 431451974

As evidenced by the somewhat awkward logic in PlayerControlView, the
previous design wasn't very friendly to expected usage. There will be
more usage when the track selection dialog components are migrated,
which would be similarly awkward without this change.

PiperOrigin-RevId: 431407675

PiperOrigin-RevId: 431395359

This is consistent with the new MediaSessionStub that accepts page index 0
and the JavaDoc of legacy and new service callbacks.

Issue: androidx/media#32
PiperOrigin-RevId: 431390454

PiperOrigin-RevId: 431376857

When a live stream is joined while ads are already playing, the LOADED event is
missed and we don't have ad information for those ads in the ad group that are
before the ad index at which we joined. This way we can clip the duration when we
receive the LOADED event for the last ad in the group. This fixes the problem of
the playback controls being hidden when content resumes after the ad group.

#minor-release

PiperOrigin-RevId: 431269627

There's no media3 equivalent to the
`com.google.android.exoplayer:exoplayer` dependency.

PiperOrigin-RevId: 430955037

We use SSIM to measure the transcoding quality between. SSIM is a widely used
tool that compares the luma channel between two images, and generates a score
from 0 to 1 that indicates "how similar" the two images are.

In `SsimHelper`, we decode the two videos, extract matching frames and
calculates the mean SSIM (SSIM averaged all matching frames) for both videos.
Matching frames are referred to as "comparisonFrame" in the CL, which is
selected based on the frame number and a user-set comparison interval.
For instance, if the interval is 7, then every seventh frames are compared.

We use MediaCodec/MediaExtractor to decode the video, and use ImageReader to
extract the decoded frame.

The SSIM calculation logic is a inspired by and modified from the CTS
[MSSIMMatcher](https://cs.android.com/android/platform/superproject/+/master:cts/tests/tests/uirendering/src/android/uirendering/cts/bitmapcomparers/MSSIMComparer.java;l=1?q=mssimcom)
that has some errors and extra features we don't need (like handling RGB
images).

Adds TranscodeQualityTest to ensure high quality transcoding.

PiperOrigin-RevId: 430951206

PiperOrigin-RevId: 430946606

When investigating how 'bad' a failure is, it's useful to see the diff
between input and output bitmaps.

PiperOrigin-RevId: 430917732

PiperOrigin-RevId: 430911179

The command is not needed, because the specified branch is already the
default branch on GitHub so will be checked out by clone automatically.

PiperOrigin-RevId: 430910549

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/caf62842c4897dc84ba8dd83cc9cf7de7fa3279b

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/c2cb22a05687d36d842c7049753a7c8ab34d5053

*** Original commit ***

Rollback of https://github.com/androidx/media/commit/1521e50307bb74983ecef1fc2ddf5f996f27468b

*** Original commit ***

PiperOrigin-RevId: 430905772

Issue: google/ExoPlayer#9996
#minor-release
PiperOrigin-RevId: 430773329

The AsyncronousMediaCodecAdapter should call MediaCodec.start()
on the same thread it calls MediaCodec.flush(), i.e. the playback
thread. This change removes the experimental flag that allowed
calling MediaCodec.start() from the callback thread.

The flag was flipped to true already.

PiperOrigin-RevId: 430689665

Generated by running:
./gradlew wrapper --gradle-version 7.4 --distribution-type all

#minor-release

PiperOrigin-RevId: 430666317

This method throws an UnsupportedOperationException on some Android 12
devices.

PiperOrigin-RevId: 430647264

This can fix the following warning caused by commit a7aa84a8:

Warning: com.google.android.exoplayer2.drm.UnsupportedDrmException.Reason:
The typedef annotation should have @Retention(RetentionPolicy.SOURCE)

 Author:    Tony Guo <tony.guo.peng@gmail.com>
 Date:      Mon Feb 28 10:56:52 2022 +0800

#minor-release

PiperOrigin-RevId: 430456963