In a period transition we pass the start time of the next period, for
the final period we pass the duration of the period or timeline, if
known.
This means sideloaded subtitles now respect the end point of
ClippingMediaSource and ensures that content subtitles aren't
incorrectly displayed over mid-roll ads.
When transitioning back into the subtitled content the subtitles still
appear slightly before the video transitions, meaning the first subtitle
of the content is shown with the last few frames of the ad. Resolving
this in a way that doesn't break anything else requires a deeper
investigation.
Issue: #5317
Issue: #8456
#minor-release
PiperOrigin-RevId: 361797118
MaskingMediaSource needs to resolve the prepare position set for a MaskingPeriod
while the source was still unprepared to the first actual prepare position.
It currently assumes that the period-window offset and the default position is
zero. This assumption is correct when a PlaceholderTimeline is used, but it
may not be true if the real timeline is already known (e.g. when re-preparing
a live stream after a playback error).
Fix this by using the known timeline at the time of the preparation.
Also:
- Update a test that should have caught this to use lazy re-preparation.
- Change the demo app code to use the recommended way to restart playback
after a BehindLiveWindowException.
Issue: #8675
PiperOrigin-RevId: 361604191
- Avoid having two onPositionDiscontinuity events (seek and transition)
sent after a seek to another media item.
- Avoid triggering an onPositionDiscontinuity event after a timeline
change.
#minor-release
PiperOrigin-RevId: 361092914
targetLiveOffsetInMedia_unknownWindowStartTime_doesNotAdjustLiveOffset
is flaky on the release branch. It's not flaky on the dev-v2 branch
due to recent changes to FakeClock's behaviour which aren't yet present
on release-v2.
Latest LTS version is better than latest stable version because it will
be supported for longer.
#minor-release
Issue:#8581
PiperOrigin-RevId: 359467482
- Ensure consistency between (Styled)PlayerControlView,
PlayerNotificationManager, TimelineQueueNavigator and
DefaultControlDispatcher.
- Handle the case where a live stream has ended when enabling previous
and next actions (window.isLive() is true and window.isDynamic is
false in that case)
PiperOrigin-RevId: 359063793
The configuration to publish to Maven seems to be incompatible with the
configuration for bintray, so only enable one at once. Once the GMaven
publishing flow is completely set up we can remove the exoplayerPublishEnabled
constant and the first branch entirely.
Issue: #5246
PiperOrigin-RevId: 359056610
The SampleStream.readData contract is that when reading a sample
with a flags-only buffer, the buffer timestamp and flags should
be set and the read position should not be advanced.
#minor-release
PiperOrigin-RevId: 357842130
`ImaAdsLoader` will preload the first ad of a subsequent media item, but the
preloaded ad might not actually play because the user could seek to a non-zero
position in that media item (which could trigger playback of a midroll, not the
preroll). In this case, playback would get stuck because the midroll ad
expected to play after the seek would never load, because the IMA SDK expected
the preroll to play first.
Fix this behavior by discarding the preloaded ad break. If there isn't a seek,
the transition to the next media item is still seamless.
#minor-release
PiperOrigin-RevId: 357682510
Previously it was safe to query the first period in the timeline, but
now we support using the ads loader in concatenations we need to use
the current period index instead.
PiperOrigin-RevId: 357578003
The source can be used in compositions (in fact, every source is
automatically used in an internal composition when constructing the
playlist), and there is not really a concept of top-level media source
any more since the Player supports playlists.
The actual restriction is that the content media source needs to have
exactly one period to be able to create a SinglePeriodAdTimeline.
#minor-release
PiperOrigin-RevId: 357544191
The previous logic was changed under the assumption that the first box
inside a meta box was not always an hdlr box, but this is not true.
#minor-release
PiperOrigin-RevId: 357200713
The available end time was accidentally substracted by the start time
of the last period.
To avoid similar time reference confusion in the future, also renaming
many variables and methods to clearly reflect the time reference point.
And to avoid constant conversion, the processManifest method also
attempts to converge to time relative to the start of the window as
quickly as possible.
Issue: #8537
PiperOrigin-RevId: 357001624
If keepalive is disabled the existing code over-eagerly releases
DrmSession instances. This is arguably OK since a (Default)DrmSession
should be released before its (Default)Manager is released
(since the underlying MediaDrm instance might be released when the
manager is released). And if all sessions are released before the
manager is released then `sessions` is empty, so the loop is a no-op.
Issue: #8576
PiperOrigin-RevId: 356955308
The `DrmConfiguration.sessionForClearTypes` property is often used
to ensure a secure decoder is used for clear ads played in encrypted
content. This is because some devices show black frames when switching
decoders.
Before this change the DRM config isn't propagated down when
constructing the ad media source, meaning
`DrmSessionManager.DRM_UNSUPPORTED` is always used, which will
cause playback to switch from secure to clear decoder when transitioning
to an ad break (ignoring the MediaItem `sessionForClearTypes` option.
Issue: #8568
PiperOrigin-RevId: 356951124
Without this a new manager is instantiated for every item in a playlist,
meaning the impact of caching improvements to DefaultDrmSessionManager
are reduced (since the cache doesn't persist across playlist items).
With this change, playlists of items with identical DRM config will use
the same manager instance (and thus share existing sessions).
Issue: #8523
PiperOrigin-RevId: 356690852
Also allow the player's prepared ad media period durations array to exceed the
length of the loaded ad URIs array, as it's possible for the player to buffer
an ad media period fully at the point where it's known that an ad is coming up
but its URI is still unknown.
PiperOrigin-RevId: 356249284
