SDK / exoplayer

If no tracks are selected at the start of playback, TrackSelectorResult
isEquivalent(null) returned true, meaning we were keeping the old result
(i.e. null), which we then tried to de-reference.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=145105702

Issue:#2319

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=145089668

It should be possible to remove ChunkExtractorWrapper from the track
output side as well (currently all extractor output is funneled via
ChunkExtractorWrapper just so it can adjust the format, which is kind
of unnecessary).

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=145083620

*** Original change description ***

Pull assertion and layer of indirection out from ChunkExtractorWrapper

It should be possible to remove ChunkExtractorWrapper from the track
output side as well (currently all extractor output is funneled via
ChunkExtractorWrapper just so it can adjust the format, which is kind
of unnecessary).

***

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=145078094

It should be possible to remove ChunkExtractorWrapper from the track
output side as well (currently all extractor output is funneled via
ChunkExtractorWrapper just so it can adjust the format, which is kind
of unnecessary).

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=145076891

Issue #2176

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144999973

This is no longer needed as MetadataDecoderFactory
figures out which decoder should be used.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144999613

Issue #2176

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144999302

Issue #2176

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144998826

Issue #2176

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144969838

This is more consistent with our handling of DRM init data,
and is more correct. It'll be up to whoever's using the
manifest to look one layer deeper and figure out what event
streams are defined on all representations, if they wish to
do so.

Issue #2176

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144968183

Issue: #2335

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144956177

When the first streaming license request response provided to mediaDrm it might return an empty array instead of null.
This was set to offlineLicenseKeySetId which made the work like there is a valid offline license.
Simplified the code and made it to set offlineLicenseKeySetId only if there is sensible data in keySetId.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144843144

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144826116

Issue: #2316

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144815010

- Move .graffle files out of third_party
- Add logo .ai file
- Remove logo .svg files

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144812776

Issue: #1807

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144726542

- Tunneling can be enabled by calling:
  trackSelector.setTunnelingAudioSessionId(
      C.generateAudioSessionIdV21(this));

- If enabled, tunneling is automatically used when the renderers
  and track selection combination support it. Tunneling is
  automatically turned on and off through playlists if the support
  changes.

Issue: #1688

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