MediaSourceEventListener

default void onDownstreamFormatChanged(
    int windowIndex,
    @Nullable MediaSource.MediaPeriodId mediaPeriodId,
    MediaLoadData mediaLoadData
)

Called when a downstream format change occurs (i.e. when the format of the media being read from one or more SampleStreams provided by the source changes).

default void onLoadCanceled(
    int windowIndex,
    @Nullable MediaSource.MediaPeriodId mediaPeriodId,
    LoadEventInfo loadEventInfo,
    MediaLoadData mediaLoadData
)

Called when a load is canceled.

default void onLoadCompleted(
    int windowIndex,
    @Nullable MediaSource.MediaPeriodId mediaPeriodId,
    LoadEventInfo loadEventInfo,
    MediaLoadData mediaLoadData
)

Called when a load ends.

default void onLoadError(
    int windowIndex,
    @Nullable MediaSource.MediaPeriodId mediaPeriodId,
    LoadEventInfo loadEventInfo,
    MediaLoadData mediaLoadData,
    IOException error,
    boolean wasCanceled
)

Called when a load error occurs.

The error may or may not have resulted in the load being canceled, as indicated by the wasCanceled parameter. If the load was canceled, onLoadCanceled will not be called in addition to this method.

This method being called does not indicate that playback has failed, or that it will fail. The player may be able to recover from the error. Hence applications should not implement this method to display a user visible error or initiate an application level retry. onPlayerError is the appropriate place to implement such behavior. This method is called to provide the application with an opportunity to log the error if it wishes to do so.

default void onLoadStarted(
    int windowIndex,
    @Nullable MediaSource.MediaPeriodId mediaPeriodId,
    LoadEventInfo loadEventInfo,
    MediaLoadData mediaLoadData
)

Called when a load begins.

default void onUpstreamDiscarded(
    int windowIndex,
    MediaSource.MediaPeriodId mediaPeriodId,
    MediaLoadData mediaLoadData
)

Called when data is removed from the back of a media buffer, typically so that it can be re-buffered in a different format.