SDK / exoplayer

When no video tracks or renderers are present, attempt audio adaptation.

Issue:#1975

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152708422

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152708351

I've also removed unnecessary "empty" cases, since to add them
everywhere would bloat the code quite a lot. Note that
new String(new byte[0], 0, 0, encoding) is valid and will produce
and empty string.

Issue: #2663

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152697288

Adding the default branch prevents linting warnings.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152675789

This allows propagating format changes to the track output.

Issue:#2552

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152672983

Also fix an issue where ad timelines with unknown ad period durations
would not be shown in multi-window mode. (The time bar doesn't use the
duration of ad periods, but shows a fix-size indicator instead.)

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152666055

ExoPlayerImpl.prepare() replaces the timeline with an empty timeline. After this
happens, MSG_SOURCE_INFO_REFRESHED could be handled on the main thread and
could relate to the old source, so the player could expose a stale timeline.

Count pending prepares in ExoPlayerImpl so that source info refreshes can be
suppressed until preparation actually completes.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152496255

Issue: #2582

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152494408

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152492104

When option is set to false, SubtitlePainter strips all absolute
and relative font size spans from the cue text.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152484724

- Removed the PES_STRIPPED flag. It's unnecessary. We can strip
  PES in the TS extractor instead.
- Made nearly all of the object classes in DvbParser immutable.
  Else it's non-obvious that none of this state can be mutated.
- Made a a lot of the methods in DvbParser static for the same
  reason.
- Removed unnecessary null checks, code that was never executed,
  unused fields etc.
- Add proper flushing of DvbParser, to prevent corrupt output
  following a seek.

Merge branch 'dev-v2-dvbsubs' of git://github.com/tresvecesseis/ExoPlayer into tresvecesseis-dev-v2-dvbsubs

Solved by adding saving reference to previous TrackGroup. Toast only displayed
after TrackGroup changed.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152242954

Also add instructions for building arm64-v8a and x86.

Issue: #2561

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152141270

Only enable multi-window mode when the duration of every period in the timeline
is known. Also, remove the warning logged when there are too many windows as it
doesn't add much.

The player's current period index was not masked while there were
unacknowledged seeks. This led to the displayed position jumping, between when
seekTo was called (after which the position would be masked but not the period
index) and the seek being acknowledged (at which point the time bar's position
would jump back to the seek position, due to the period index being resolved).
Mask the period index, like the window index, to fix this behavior.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152116040

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152107538

This allows custom parsers to be used.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152005477

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152003529

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151994281

Opus: use fixed max size in Opus decoding

Disables codecIsAdaptive for Odroid-XU4

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151840862

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151818564

Issue: #2634

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151816597

Start draining the audio processors when the playback parameters change,
and when draining completes use the written frame count and next input
buffer presentation timestamp as an offset for applying the new playback
speed.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151800074

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151706338

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151696298

This change also ensures that format changes are read whilst the
renderer is enabled but without a codec. This is necessary to
ensure the drm session is updated (or replaced).

Updating the format is also needed so that the up-to-date format is
used in the case that the codec is initialized later due to the
surface being set. Previously, if an ABR change occurred between
the format being read and the surface being attached, we would
instantiate the codec and then immediately have to reconfigure it
when as a result of reading the up-to-date format. For a non-adaptive
codec this resulted in the codec being immediately released and
instantiated again!

Issue: #2582

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151608096

This is the boring part of a larger change that fixes
how video renderers behave when surfaces are attached and
detached whilst they're enabled or started.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151563031

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151554130

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151456161

Enable gradle test code coverage for the library modules that aren't affected by 'stuck in endless loop' issue

'library-core' is still affected by https://code.google.com/p/android/issues/detail?id=226070

Code coverage report can be generated for the rest of the modules by:
./gradlew :[module name]:createDebugCoverageReport
Report is generated under:
[module folder]/buildout/reports/coverage/debug

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151448536

If the super method has the annotation on an argument, then
the overriding method should have it too.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151440313

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151431376