SDK / exoplayer

Issue: #2058

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144693705

This is an initial version that does not handle cross-playlists
adjustment in an ideal way.

Issue:#1789

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144692969

This will allow recreating timestamp adjustment on the decoding side.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144692956

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144690284

Also clear the playingPeriodHolder in the case the renderers
are being disabled. This is required to ensure that
setPlayingPeriodHolder isn't turned into a no-op, which will
break the seek.

Issue: #2330

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144635220

At this point the renderers all have TODOs in enable(),
and turning on tunneling is reduced to the problem of
propagating a tunneling ID to these points.

Issue: #1688

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144619393

reconfigure audiotrack on format change

Improve far seek performance of chunkSampleStream

Fix vector drawable usage on API level 21 or above

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144448491

under certain circumstances (e.g. seek to a position where the input format
changed) the audio track needs a reconfigure even if there aren't any
pending buffers

Also backport the Shield workaround to v1.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144446498

- Support querying whether the current window is dynamic
  and seekable. The new methods are similar to getDuration,
  which is also a convenience method for the current window.
- Improve demo app to restore positions in VOD items within
  playlists where the last item is live. Also restore the
  position within the window for live items unless the player
  failed with BehindLiveWindowException.

Issue: #2320

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144443898

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144443010

This overrides the start position relative to the window.

Issue:#1544

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144434903

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144431191

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144430372

This class can accommodate extra information that may potentially
be specified by TrackSelectors in the future (e.g. configuration
for renderers). Even if we don't do this, it's cleaner to have a
proper class and an info field to refer to, as opposed to using a
Pair.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144428963

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144427132

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144424329

- Add proguard rules for libraries/extensions into .aar files
- Add proguard rules to retain CEA608/708 decoder constructors
- Remove lots of default config from gradle files
- Remove disabling of abort on lint error
- Enable optimizations on release builds of demo app

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144350233

This allows passing a subsampleOffsetUs as in Text decoding.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144334172

Issue:#2301

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144334062

Removed the direct-referencing of the Cea608Decoder and Cea708Decoder classes from SubtitleDecoderFactory.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144329795

Also revert ability to query for a decoder that explicitly
supports tunneling, since in the new design we'll just be
querying the first decoder provided by the MediaCodecSelector
and then reporting what it supports. This is in line with
what we do when reporting support for adaptive switching.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144315746

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144240101

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144223539

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144219518

Position discontinuities are notified via AudioTrack.Listener.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144202048

Issue: #2311

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144182445

Move initialization code from the audio renderers into handleBuffer. The audio
session id and tunneling enabled state can be altered using new setters.

This change is not intended to change the behavior of the audio renderers.
Before this change, the AudioTrack would always be reinitialized by the
renderers before calling handleBuffer.

Add a protected onAudioTrackUnderrun method for custom renderers that want to
implement custom handling of underruns.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144067149

Extra calls to CipherOutputStream.close() causes each time extra 16 bytes written to the
underlying OutputStream. Prevented close() is called more than once and also discarded any
data in ReusableBufferedOutputStream buffer on reset().

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144063120