SDK / exoplayer

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121566154

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121565738

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121564959

SubtitleParser includes a method updating the current
playback position for parsers that need to be aware
of the position in order to determine how to batch
captions (i.e. Eia608Parser).
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121519712

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121501144

- This moves to a single DrmInitData implementation that supports
  both specific and universal UUID matching. You can also do a
  combination of the two, which was not previously possible.
- The object model is simplified as a result. This is a precursor
  to a change where DrmInitData will be included directly in the
  Format to enable key rotation.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121472592

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121468904

In order to apply track type specific policies in
the track selection, we need to know the type of
the track renderer, this method returns one of the
constants defined in C.java of the form TRACK_TYPE_*
to allow renderer classification.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121369021

If the media format changes from one Format object to another
one that's is equal (but not the same object), readData would
end up performing an expensive equality evaluation on every
invocation.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121362300

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121102072

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121101188

This will be required for key rotation to work, since
we'll need a way to determine whether or not the init
data has changed.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121018211

Only edit lists that truncate the first/last sample are supported, which is
sufficient to handle AAC encoder delay/padding.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121011278

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121002218

Dash/SS SampleSources now instantiate ChunkSource and
ChunkSampleSource (renamed to ChunkTrackStream) instances
on demand as tracks are enabled. The TrackGroups exposed
by the DASH/SS SampleSources are now constructed at the
top level.

Note that this change resolves the TODOs at the top of the
ChunkSource classes, allowing multiple adaptation sets of
the same type.

Next steps will include:

- Bring back UTC timing element support for DASH, which
  will be an extra request during preparation in  the DASH
  SampleSource.
- Simplification of manifest fetching to use a Loader directly
  in the two top level SampleSource classes. ManifestFetcher
  should eventually go away once HLS no longer needs it.
- Eventually, some consolidation between DASH/SS. There's a
  lot of common code there now.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121001777

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121001478

Parse the duration of the media directly from the manifest
in the DASH/SS SampleSource implementations.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121001296

This change pulls manifest refresh responsibility up to the
top level Dash/SS SampleSource implementations. In following
steps more of the manifest processing logic will be pulled
up (e.g. extracting track groups from the initial manifest),
which will allow ChunkSampleSource/ChunkSource instances to
be further simplified and created on demand.

I've avoided moving/renaming anything for now, so as to keep
it fairly easy to review.

Note that this change does the TODO related to releasing the
manifest fetchers.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121001139

This is a mechanical change. The two new SampleSource classes
are forked from MultiSampleSource, with the logic that previously
was in the demo app's SourceBuilder methods copied into the
corresponding constructors. Subsequent steps will:

1. Pull the initial manifest processing from DashChunkSource and
SmoothStreamingChunkSource into the new SampleSource classes.
2. Remove the construction of ChunkSampleSource instances from
the constructors, instead instantiating children only as needed
when tracks are enabled.
3. Simplify ChunkSampleSource down into a ChunkTrackStream object.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121001021

Refactored Eia608Parser so that it manipulates the caption string builder directly, avoiding unnecessary object allocation.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120926283

pageHeader.headerArray is only used in getNextSeekPosition()
in which populatePageHeader() resets them both at the beginning
anyway.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120902428

The construction currently in SourceBuilder will be
moving inside of the core lib, so it can't refer to
DemoPlayer constants.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120822759

If rendererMediaClock is non-null, the rendererMediaClockSource is enabled or
started, so remove the check in updatePositionUs.

When disabling renderers for track selection, renderers with changing track
selections always transition from started -> enabled.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120819483

- You can't link to a generic type (apparently).
- Suppress unchecked conversion warning.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120817601

Plus add processOutputBuffersChanged just for consistency
with processOutputBuffer and processOutputFormat.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120811608

Functionality is moved into Eia608Parser, so that Eia608Parser
can be used with TextTrackRenderer, similar to all the other
text/subtitle formats. Modified some of the other
text/subtitle-related classes to support the new behaviour.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120755145

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120722975

This CL allows near-complete support to CSS selectors (I say near because not every
CSS rule applies to WebVTT).
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120717498

Now uses buffer position + limit in both new and legacy modes.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120713837

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120699171

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120694784

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120693278

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120691990

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120689946

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120553402

Reading the format and/or a sample needs to be done as a
single operation. Else you can have a situation where the
queue is initially empty, and this happens:

1) Read downstream format X
2) Read downstream format X (unchanged)
3) Write format Y
4) Write first sample
5) Read first sample

The first sample then appears to be format X rather than Y.

Note that readData in the SampleSource implementations always
looks roughly the same. readReset is identical in all cases.
isReady is identical in all cases now I've fixed them to be
that way. So it should be pretty easy to get DefaultTrackOutput
to implement TrackStream directly, at which point a whole load
of duplication will disappear.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120546377

- Code is simpler. We only ever reset all tracks.
- Allows the standalone media clock to be updated properly. This
  allows simpler recovery for live streams in ExtractorSampleSource.
- Fixes #1285 and paves the way for a fix for #758.

Issue: #1285
Issue: #758
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120530682

I think the concept of a sparse track might need formalizing
in Format at some point. We should probably do a similar thing
with sparse tracks in ExtractorSampleSource as well. WDYT?

Issue: #551
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120530195

This is just wrong. I think there used to be an off-by-one
timestamp error in YouTube's fmp4 streams, and this code
was initially designed exclusively to play such streams. I
don't see this issue any more though, if it was ever there!
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120447694

Having moved HLS to use single sample queues per track, these
classes have become relatively similar. This CL aligns the two
to make this more obvious. It remains unclear whether it'll
ever be sensible to merge them; there are still some niggly
complications for HLS.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120429618