SDK / exoplayer

When using a MatrixTransformationFrameProcessor per transformation
matrix, each frame processor's shader applies the matrix to the
vertices and clips the result to the NDC range when drawing the
output frame.
This change combines consecutive MatrixTransformations into a single
MatrixTransformationFrameProcessor by multiplying the individual
matrices while updating and clipping the visible polygon after
each matrix and mapping the resulting visible polygon back to the
input space so that its vertices and the combined transformation
matrix can be used in the shader.

PiperOrigin-RevId: 448521068

Specifically mention that releasing the session does not release the player and the app needs to take care to release the player.

Issue: androidx/media#73
PiperOrigin-RevId: 448454338

```
[expression.parameter.name.shadows.field] The postcondition
EnsuresNonNull on the declaration of method 'setContentTimeline'
contains ambiguous identifier 'contentTimeline'. Use
"this.contentTimeline" for the field, or "#1" for the formal parameter.
  private void setContentTimeline(Timeline contentTimeline) {
               ^
```

PiperOrigin-RevId: 448285571

Deprecate the setAdsLoaderProvider and setAdViewProvider methods these
replace.

PiperOrigin-RevId: 448251423

Pixel 5 was occasionally reaching the 2 minute limit.

PiperOrigin-RevId: 448244803

Network type detection on these API levels couldn't be tested
yet because of a missing Robolectric feature. This was fixed by
the recent Robolectric upgrade and the restrictions can be removed.

This also requires to replicate the platform hack we rely on on
these API levels.

PiperOrigin-RevId: 448240431

Some RTP foramts are statically assigned, so they don't have the rtpmap
attribute. Create the missing rtpmap attribute in this case.

PiperOrigin-RevId: 448239724

The prior test does not exist, and is not a pixel test.

PiperOrigin-RevId: 448224929

- Add a MidiRenderer skeleton with basic playback
- Add MidiDecoder with placeholder synthesizer (JSyn) impl
- Make MidiExtractor feed placeholder data
- Add Renderer extension loaders for MIDI

PiperOrigin-RevId: 448212797

Issue: androidx/media#74
PiperOrigin-RevId: 448205908

Add MIDI filetype information for use in the ExtractorsFactory

PiperOrigin-RevId: 447976272

This provides a way for apps to send a custom layout to media3
controllers and legacy controllers by making sure to include custom
actions in the legacy playback state when built in the PlayerWrapper
for broadcasting.

PiperOrigin-RevId: 447967600

PiperOrigin-RevId: 447950623

PiperOrigin-RevId: 447939097

transformWithDecodeEncode is now transformWithoutDecodeEncode,
to test the passthrough path.

PiperOrigin-RevId: 447796892

PiperOrigin-RevId: 447724152

A custom action sent by legacy controllers as for instance the System UI mini player arrive at MediaSessionCompat.Callback.onCustomAction() and need to be dispatched to the session callback as a such.

PiperOrigin-RevId: 447486859

PiperOrigin-RevId: 447467287

We never register SubtitleView as a Player.Listener directly, it's
always done via PlayerView.

PiperOrigin-RevId: 447467037

This listener replaces
FrameProcessorChain#getAndRethrowBackgroundExceptions.
The listener uses a new exception type FrameProcessingException
separate from TransformationException as the frame processing
components will be made reusable outside of transformer soon.

PiperOrigin-RevId: 447455746

Issue: androidx/media#50
PiperOrigin-RevId: 447435259

This constant is used for https://docs.gl/es2/glVertexAttribPointer
which takes the number of components per generic vertex attribute
(meaning the size of the individual coordinate vectors here) not the
number of attributes (the number of vertices that the old constant
name referred to).

PiperOrigin-RevId: 447427241

As defined in Kush Amerasinghe's paper 'H.264 For the rest of us'.

PiperOrigin-RevId: 446988272

Before this change, we list the formats for which we don't
want transcoding. This change disables transcoding altogether.

This was tested by checking that transcoding takes place on a
short camera recording only when the added flag is not present
(and AndroidManifest does not declare support for HEVC).

PiperOrigin-RevId: 446986580

We won't try to provide/rethrow helpful error messages that are already
provided by GL, as this sort of task would expand into writing a GL verifier.
A Gl verifier is unnecessarily complex for minimal payoff, especially as Apps
expected to read GL error messages would mostly be those writing custom
GlFrameProcessors, who should be already be familiar with reading GL error
messages anyways.

PiperOrigin-RevId: 446950837

RawCC is a Google-internal subtitle format, and is no longer used with
ExoPlayer.

PiperOrigin-RevId: 446950691

The texture coordinates can be derived from the frame coordinates.

PiperOrigin-RevId: 446770538

Remove PlayerNotificationManager and DefaultMediaDescriptionAdapter
which are unused in session. The functionality is covered by the
MediaNotification.Provider.

PiperOrigin-RevId: 446687875

Relates to https://github.com/square/okhttp/issues/3146. This was from https://github.com/androidx/media/pull/71.

There is a draft PR https://github.com/square/okhttp/pull/7185/files which documents OkHttp's ideal handling of cancellation including interrupts.

But a few key points

1) This is a target state, and OkHttp does not currently handle interrupts correctly.  In the past this has been identified, and the advice is to avoid interrupts on Http threads, see discussion on https://github.com/square/okhttp/issues/1902. Also an attempt at a fix here https://github.com/square/okhttp/pull/7023 which wasn't in a form to land.

2) Even with this fixed, it is likely to never be optimal, because of OkHttp sharing a socket connection for multiple inflight requests.

From https://github.com/square/okhttp/pull/7185

```
Thread.interrupt() is Clumsy
----------------------------

`Thread.interrupt()` is Java's built-in mechanism to cancel an in-flight `Thread`, regardless of
what work it's currently performing.

We recommend against using `Thread.interrupt()` with OkHttp because it may disrupt shared resources
including HTTP/2 connections and cache files. In particular, calling `Thread.interrupt()` may cause
unrelated threads' call to fail with an `IOException`.
```

This PR leaves the Loader/DataSource thread parked on a countdown latch, while this may seem wasteful and an additional context switch. However in practice the response isn't returned until the Http2Connection and Http2Reader have a response from the server and these means effectively parking in a `wait()` statement here https://github.com/square/okhttp/blob/9e039e94123defbfd5f11dc64ae146c46b7230eb/okhttp/src/jvmMain/kotlin/okhttp3/internal/http2/Http2Stream.kt#L140

PiperOrigin-RevId: 446652468

ScaleToFitFrameProcessor, PresentationFrameProcessor,
and EncoderCompatibilityFrameProcessor now each implement
MatrixTransformation instead of wrapping
MatrixTransformationFrameProcessor.

PiperOrigin-RevId: 446480286

Refactoring change only.

PiperOrigin-RevId: 446475708

The TrackSelector is released when the player is released. The
TrackSelector can be reused if TrackSelector.init() is called again.

PiperOrigin-RevId: 446439717

PiperOrigin-RevId: 446432695

PiperOrigin-RevId: 446425897

PiperOrigin-RevId: 446423017

PiperOrigin-RevId: 446400371

PiperOrigin-RevId: 446400192

This change splits AdvancedFrameProcessor into 4 files:
- MatrixTransformationFrameProcessor for the GlFrameProcessor
  implementation
- MatrixTransformation and GlMatrixTransformation for the GlEffect
  specification
- MatrixUtils for the static matrix helpers

PiperOrigin-RevId: 446236384

PiperOrigin-RevId: 446181877

*** Original commit ***

Upgrade Robolectric dependency to 4.8

***

PiperOrigin-RevId: 446175705