MediaSourceEventListener

@UnstableApi
public interface MediaSourceEventListener

Known direct subclasses
AnalyticsCollector

Interface for data collectors that forward analytics events to AnalyticsListeners.
ServerSideAdInsertionMediaSource

A MediaSource for server-side inserted ad breaks.
Known indirect subclasses
DefaultAnalyticsCollector

Data collector that forwards analytics events to AnalyticsListeners.

Interface for callbacks to be notified of MediaSource events.

Summary

Nested types

Dispatches events to MediaSourceEventListeners.

Public methods
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.
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.

Public methods

onDownstreamFormatChanged

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).

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
@Nullable MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId the media belongs to.
MediaLoadData mediaLoadData

The MediaLoadData defining the newly selected downstream data.

onLoadCanceled

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

Called when a load is canceled.

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
@Nullable MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId this load belongs to. Null if the load does not belong to a specific media period.
LoadEventInfo loadEventInfo

The LoadEventInfo corresponding to the event. The values of elapsedRealtimeMs and bytesLoaded are relative to the corresponding onLoadStarted event.
MediaLoadData mediaLoadData

The MediaLoadData defining the data being loaded.

onLoadCompleted

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

Called when a load ends.

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
@Nullable MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId this load belongs to. Null if the load does not belong to a specific media period.
LoadEventInfo loadEventInfo

The LoadEventInfo corresponding to the event. The values of elapsedRealtimeMs and bytesLoaded are relative to the corresponding onLoadStarted event.
MediaLoadData mediaLoadData

The MediaLoadData defining the data being loaded.

onLoadError

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.

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
@Nullable MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId this load belongs to. Null if the load does not belong to a specific media period.
LoadEventInfo loadEventInfo

The LoadEventInfo corresponding to the event. The values of elapsedRealtimeMs and bytesLoaded are relative to the corresponding onLoadStarted event.
MediaLoadData mediaLoadData

The MediaLoadData defining the data being loaded.
IOException error

The load error.
boolean wasCanceled

Whether the load was canceled as a result of the error.

onLoadStarted

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

Called when a load begins.

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
@Nullable MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId this load belongs to. Null if the load does not belong to a specific media period.
LoadEventInfo loadEventInfo

The LoadEventInfo corresponding to the event. The value of uri won't reflect potential redirection yet and responseHeaders will be empty.
MediaLoadData mediaLoadData

The MediaLoadData defining the data being loaded.

onUpstreamDiscarded

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.

Parameters
int windowIndex

The window index in the timeline of the media source this load belongs to.
MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId the media belongs to.
MediaLoadData mediaLoadData

The MediaLoadData defining the media being discarded.