SDK / exoplayer

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 …

Add abstract logging methods to EventLogger

replace 'compile' with 'implementation'

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187026802

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187021822

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187021535

The util package is, in practice, for things that are misc enough
to not warrant their own package. If something is deserving of a
package, it's IMO best placed somewhere else (I know you could
argue it's a util, but you could argue that about almost anything
else as well).

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187010018

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=186999051

AdsMediaSource must be top-level. Currently the (deprecated) ImaAdsMediaSource
can't be used because it prepares its contained AdsMediaSource as a child
source.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=186990882

Allow the position to jump on receiving the first presentable input buffer,
if and only if the buffer timestamp differs significantly from what was
expected. This prevents a stuck buffering case for streams that are thought
to start at t=0, but actually start at t=large_value.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=186990214