Ignorable ad periods are skipped to resolve the media period id with the
ad playback state of the resulting period. In case of a change in the period
position un-played ad periods are rolled forward to be played.
PiperOrigin-RevId: 428011116
MediaSource can be reused with other Player instances after they
have been released, so we need to set the PlayerId when preparing
the source. Access can mostly be handled by the implementation in
BaseMediaSource.
PiperOrigin-RevId: 408878824
Our package-info.java files are annotated with @NonNullApi which results
in everything being non-null by default, so this annotation is never
needed.
#minor-release
PiperOrigin-RevId: 405864737
