SDK / exoplayer

This allows to keep the same window sequence number if playback fails and
is then retried without resetting the position.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188339509

The value is increased to 50 seconds. With that the player can better handle
short network problems. This does NOT increase the maximum memory used as we
still apply the seperate DEFAULT_TARGET_BUFFER_BYTES.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188335603

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188327736

When creating a new AC-3 passthrough AudioTrack the position
may advance from an old AudioTrack's position. The workaround
checked for the playback head position returning to zero, but
a subsequent change meant that we'd always start writing data
to the new track immediately (rather than waiting for its
position to 'stabilize' at zero).

Fix the issue by using the AudioTrack position directly. (Nb.
this doesn't handle the case of the stale position before
unwrapping being zero, but it is very unlikely to occur.)

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188319795

Also simplified shouldContinueLoading condition code and added a builder for DefaultLoadControl.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188306213

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188173078

This allows to know the duration immediately and fixes the temporary unknown
duration in the UI when repreparing the same extractor media source.

The isSeekable property is still reset to false as we can't actually seek
until the seek map has been reloaded.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188145860

Also remove logic for tracking the next output buffer in LibvpxVideoRenderer, as
this allowed many consecutive frames to be rendered that were actually late
after dropping to keyframe. It looks better to show frames at a consistent
100 ms rate.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188144739

DefaultDrmSession

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188079887

To support Google Assistant media apps need to support the action
ACTION_SET_RATING. Before this change developers have to use a QueueEditor for
this which does not have any other mandatory actions required for Assistant.
With this change developers can implement the rating action with the
PlaybackPreparer which they need to implement anyway to support Assistant.

https://developer.android.com/guide/topics/media-apps/interacting-with-assistant.html#transport_controls

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188056722

Issue: #3915

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188047131

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188041418

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188038757

The playback state in ExoPlayerImpl and ExoPlayerImplInternal is usually kept
in sync. Only the timeline was so far not updated in the same way with the
internal player using a null timeline while ExoPlayerImpl keeps the previous
timeline.

This change removes the need to keep a null timeline which allows to update
the internal timeline in the same way as the external one. This fixes problems
when retrying a failed playback multiple times.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188034988

The start position was set to the old start position instead of the current
playback position. We need to set the start position to the current playback
position to ensure a repreperation with the same media starts from the last
playback position.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188025439

Issue: #3926

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188020756

Previously, child source ids were reassigned when the media source is reused.
Now the creation of the ids moved to outer level to stay in sync with the list
of child media sources.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=188014739

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187872692

This restores functionality that was lost when we added
support for general timed message delivery.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187866807

Especially the cast demo app benefits from this feature as it can keep its
ConcatenatingMediaSource all the time without having to repopulate it
when switching players.

Issue:#3498

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187866048

This value can now be set in the DefaultBandwidthMeter instead. As a result
NO_VALUE can be removed from BandwidthMeter as we now always provide an
estimate.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187865341

This simplifies clearing a playlist without having to call removeMediaSource
repeatedly. It will also update the timeline only once.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187863857

There is a large number of repeated arguments in the callback methods of
MediaSourceEventListener. Grouping them into load related data and media
related data allows to significantly reduce the amount of boiler plate code
and also simplifies future extensions of either set of data.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187857252

This value is logically part of the bandwidth estimation and will eventually be
moved there from the adaptive track selection.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187597038

Before this change, HlsMediaSource timelines had a period starting at the epoch.
For VOD streams the window position in the period was the program date time.

This change makes period and initial window positions match. For live streams
the window position advances as segments are removed, so its position in the
period is the difference between the initial program date time and the program
date time of the latest playlist.

This also makes it possible to insert ads in VOD HLS content with program date
time, as the period and window are now aligned.

Issue: #3865

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187590948

1. Allow retaining a decoder without any reconfiguration, in addition
   to retaining with reconfiguration (and not retaining)
2. Fix retention logic for video decoders to take into account changing
   ColorInfo
3. Allow retention of audio decoders when possible

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187500285

Added a note about using TextureView only on hardware accelerated window.

Issue: #3901

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187498594

Currently, AspectRatioFrameLayout may need to resize itself if it could not
satisfy a target aspect ratio. User may want to know when this happen, or
whether this can happen, so they can update their UI accordingly. For
example: show/hide a button to toggle different resize mode only when the
aspect ratio of the view and the content is very different.

GitHub: #3736

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187484241

This is to ensure valid emails don't get a canned response. The canned response
is triggered when the subject doens't contain the word "issue".

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187458580

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187313128

- Change 'compile' configuration (deprecared) to using 'implementation'
and 'api' configurations instead.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187311778

The non-dynamic media source has a strict subset of features of the dynamic one and
thus can be replaced.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187299432

Without child sources, the timeline can't possibly updated again within the
current looper message. Thus, we can send the empty timeline immediately.

This fixes a recently introduced flakiness in the test.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187295700

ClippingMediaSource provides a timeline where the period and window have the
same start/end positions, so when clipping a child timeline with a non-zero
offset between the window and period it is necessary to clear the offset then
apply the offset to the start/end positions used in the ClippingMediaPeriod.

Also add a message to clipping exceptions.

Also fix adjustment of seeks to the start of the clipped view.

Issue: #3888

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187292506

This is achieved by adding a BaseMediaSource which keeps a reference count of the
number of times the source has been prepared and forwards to the actual implementations
only once, such that only minimal changes are needed for each media source.

Issue:#3498

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187186691

Up to now we use a boolean "preventListenerNotification" to suppress updates
while other operations are still in progress. This ensures, for example, that
only one initial timeline is issued even for multiple child sources.

As soon as we allow to reuse the same instance, it becomes increasingly difficult
to manage this manual listener notification suppression. Therefore, this change
schedules an update as a new message on the playback thread immediately after the
current message. This way, we also ensure that all simultaneous updates within one
looper message iteration are reported together.

Issue:#3498

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187180342

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187165173

add h263 format support in fourcc codecID

Use the pattern "string literal".equals(something) to prevent NPE …