SDK / exoplayer

+ force arm (over thumb) mode for 32-bit builds

-O2 improves performance ~30-40% over the default -Oz depending on the
resolution; this is similar to what is done for vp9 which uses -O3.

PiperOrigin-RevId: 290318121

PiperOrigin-RevId: 290276507

- Add additional Listener methods to DownloadManager, to inform of
  changes to whether the downloads are paused or waiting for requirements.

- Only schedule the Scheduler if we really are waiting for requirements.

- Only restart the service if we're no longer waiting for requirements,
  and if there are queued downloads that will now be restarted.
  Previously the service would be restarted whenever the requirements
  were met, regardless of whether there was any work to do.

- Restart service if it might be stopping, as well as if it's already
  stopped. Also restart service if there's a download state change to a
  state for which the service should be started, if.

Issue: #6798
PiperOrigin-RevId: 290270547

PiperOrigin-RevId: 290269098

Doing so prevent Codec which is a big object with
JNI to be garbage collected.

As the codec can not be hold in the listener, there
is no way to call release, as it must be called on
the same codec.
As a result the release method is also removed.
The downside is that at runtime some callbacks may be
dropped but it should be a short transitive state.

This also simplifies lifecycle of the listener as
the client does not have to know if release needs
to be called or not.

An alternative would have been to hold a weak ref,
but I deemed it too complicated for the
runtime gain.

PiperOrigin-RevId: 290231659

Issue: #6155
PiperOrigin-RevId: 290117324

PiperOrigin-RevId: 290079840

This avoids allocating a Runnable.

PiperOrigin-RevId: 290079660

This fixes an issue where a DownloadService implementation
that allows foreground but doesn't provide a scheduler would
not be restarted in the case that it was still in memory but
classed as idle by the platform.

It also speeds up service restart in the case that a
scheduler is provided.

Issue: #6798
PiperOrigin-RevId: 290068960

This method has two use cases:

1. Seeking. Calls are immediately preceded by a call to rewind(), and
   the returned value isn't important unless it's ADVANCED_FAILED (i.e.
   the caller is only interested in success and failure).
2. Advancing. The return value is important unless it's ADVANCED_FAILED,
   in which case the caller wants to treat it as 0.

This change creates separate methods for each use case. The new seekTo
methods automatically rewind and return a boolean. The updated advanceTo
method returns 0 directly in cases where ADVANCED_FAILED was returned.
Arguments that were always hard-coded to true by callers have also been
removed.

This change is a step toward one possible solution for #6155. How we'll
solve that issue is still up for discussion, but this change seems like
one we should make regardless!

Issue: #6155
PiperOrigin-RevId: 290053743

- DownloadManagerHelper now passes all downloads to the
  DownloadService when the service is attached (and once
  the downloads are known). The service then starts the
  foreground notification updater if necessary. This fixes
  the ref'd issue.
- Don't call getScheduler() if the service is background
  only. This was already documented to be the case on the
  DownloadService constructor.
- If the service is started in the foreground on SDK level
  26 and higher, satisfy the condition to move the service
  to the foreground in onStartCommand rather than in stop().
  It's much more obviously correct, and should produce the
  same end result.

Issue: #6798
PiperOrigin-RevId: 290050024

PiperOrigin-RevId: 290041295

PiperOrigin-RevId: 290032841

This optimization allows a ChunkSampleStream to output track
formats as soon as they're parsed during an InitializationChunk
load, rather than waiting until after the InitializationChunk
load is completed.

In DASH VOD, a single InitializationChunk typically loads the
moov and sidx atoms in that order. Hence for long form content
where the sidx is a non-trivial size, this may result in the
track formats being output a non-negligible period of time
sooner than was previously the case. This allows downstream
renderers to start codec initialization sooner, potentially
decreasing startup latency.

For a single test stream on a fast & stable network, this
pretty consistently reduced elapsed time until both audio and
video codecs have been initialized from ~0.5s to ~0.3 seconds
on a Galaxy S8. For 5 test runs without and with these patches,
the eventTime logged by EventLogger for the second decoder
init were:

Without (secs): 0.47 0.47 0.45 0.48 0.46
With (secs)   : 0.32 0.33 0.34 0.31 0.40

PiperOrigin-RevId: 289845089

The current order of operations means that the Format is only passed
to the chunk's output after the DataSource has been opened. This
means that establishing the network connection and the downstream
renderers initializing their codecs are effectively serialized to
occur one after the other.

In the new order, the Format is passed to the chunk's output before
the DataSource has been opened. This allows the downstream renderers
to initialize their codecs in parallel with the network connection
being established, and hence latency at the start of playback is
reduced.

PiperOrigin-RevId: 289841854

Issue: #6870
PiperOrigin-RevId: 289658261

PiperOrigin-RevId: 289490708

Issue: #6798
PiperOrigin-RevId: 289424582

As discovered whilst investigating #6798, there are cases
where these methods are not correctly. They were added as
convenience methods that could be overridden by concrete
DownloadService implementations, but since they don't work
properly it's preferable to require application code to
listen to their DownloadManager directly instead.

Notes:

- The original proposal to fix #6798 stored the state change
events in memory until they could be delivered. This approach
is not ideal because the events still end up being delivered
later than they should be. We also want to fix the root cause
in a different way that does not require doing this.
- This change does not fix #6798. It's a preparatory step.

Issue: #6798
PiperOrigin-RevId: 289418555

This change makes it clear the SampleQueue doesn't outlive
the wrapping PlayerTrackEmsgHandler, and releases it from
PlayerTrackEmsgHandler.release().

This change is a no-op because calling release() is the
same as reset() in this case (the behavior only differs if
a non-dummy DrmSessionManager is being used).

PiperOrigin-RevId: 289416622

As a result, onMediaChunkLoadStarted gets invoked on the loading thread, and
init on the playback thread, matching the thread access comments.

Issue:#6321
PiperOrigin-RevId: 289167981

PiperOrigin-RevId: 289092332

PiperOrigin-RevId: 289091494

PiperOrigin-RevId: 289054937

Unfortunately devices such as the MI 8 do not provide an alternative
working decoder. Some Vivo devices do provide one though.

PiperOrigin-RevId: 288911897

PiperOrigin-RevId: 288860159

PiperOrigin-RevId: 288855515

PiperOrigin-RevId: 288772277

This improves readability by making clearer that reading no bytes from
the input in readFrames() is an expected case if the buffer is full.

PiperOrigin-RevId: 288711841

This doesn't work because the Chronometer text layout can only count in realtime.

Issue:#6816
PiperOrigin-RevId: 288711702

Issue: #6845
PiperOrigin-RevId: 288688716

PiperOrigin-RevId: 288667790

Issue: #4078
PiperOrigin-RevId: 288651166

PiperOrigin-RevId: 288468497

PiperOrigin-RevId: 288464154

PiperOrigin-RevId: 288304477

- Simulate IO exceptions in the test using FlacBinarySearchSeeker for
  seeking in FlacExtractorTests. This makes the test slower but covers
  more test cases.

PiperOrigin-RevId: 288285057

PiperOrigin-RevId: 288292488

PiperOrigin-RevId: 288280500