Interface TrackSelectionListener


  • public interface TrackSelectionListener
    This is a high level listener interface that provides callbacks for track selection events.

    *NOTE* that all listener methods are invoked on the UI/main thread of your applications. You can directly interact with UI components from within the implementation of you listener.

    Since:
    4.2.0
    • Method Detail

      • onVideoQualitySelectionChanged

        void onVideoQualitySelectionChanged​(@NonNull
                                            VideoTrackQuality videoTrackQuality,
                                            int reason,
                                            @Nullable
                                            String switchDescription,
                                            long bufferedDurationUs,
                                            long bitrateEstimate)
        Called when the selected video quality changes.

        *NOTE* This is not when the actual quality starts playing, but rather when the ABR algorithm selects it. If you want to know when the player changes the (rendering) video quality use FormatChangeListener.onVideoFormatChange(Format, int, long, VideoTrackQuality) instead.

        Parameters:
        videoTrackQuality - The selected quality
        reason - The selection reason. One of the C.SELECTION_REASON_* constants
        switchDescription - Optional switch description
        bufferedDurationUs - The buffer ahead in microseconds at the time of the selection
        bitrateEstimate - The bandwidth estimation in bps at the time of the selection
      • onVideoTrackChanged

        void onVideoTrackChanged​(@Nullable
                                 VideoTrack videoTrack)
        Called when the selected video track changes.
        Parameters:
        videoTrack - VideoTrack or null if video is disabled
      • onAudioTrackChanged

        void onAudioTrackChanged​(@Nullable
                                 AudioTrack audioTrack)
        Called when the selected audio track changes.
        Parameters:
        audioTrack - AudioTrack or null if audio is disabled
      • onSubtitleTrackChanged

        void onSubtitleTrackChanged​(@Nullable
                                    SubtitleTrack subtitleTrack)
        Called when the selected subtitle track changes.
        Parameters:
        subtitleTrack - SubtitleTrack or null if subtitle is disabled