Class DefaultLoadControl

  • All Implemented Interfaces:
    LoadControl

    @Deprecated
    public class DefaultLoadControl
    extends Object
    implements LoadControl
    Deprecated.
    com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which contains the same ExoPlayer code). See the migration guide for more details, including a script to help with the migration.
    The default LoadControl implementation.
    • Field Detail

      • DEFAULT_MIN_BUFFER_MS

        public static final int DEFAULT_MIN_BUFFER_MS
        Deprecated.
        The default minimum duration of media that the player will attempt to ensure is buffered at all times, in milliseconds.
        See Also:
        Constant Field Values
      • DEFAULT_MAX_BUFFER_MS

        public static final int DEFAULT_MAX_BUFFER_MS
        Deprecated.
        The default maximum duration of media that the player will attempt to buffer, in milliseconds.
        See Also:
        Constant Field Values
      • DEFAULT_BUFFER_FOR_PLAYBACK_MS

        public static final int DEFAULT_BUFFER_FOR_PLAYBACK_MS
        Deprecated.
        The default duration of media that must be buffered for playback to start or resume following a user action such as a seek, in milliseconds.
        See Also:
        Constant Field Values
      • DEFAULT_BUFFER_FOR_PLAYBACK_AFTER_REBUFFER_MS

        public static final int DEFAULT_BUFFER_FOR_PLAYBACK_AFTER_REBUFFER_MS
        Deprecated.
        The default duration of media that must be buffered for playback to resume after a rebuffer, in milliseconds. A rebuffer is defined to be caused by buffer depletion rather than a user action.
        See Also:
        Constant Field Values
      • DEFAULT_TARGET_BUFFER_BYTES

        public static final int DEFAULT_TARGET_BUFFER_BYTES
        Deprecated.
        The default target buffer size in bytes. The value (C.LENGTH_UNSET) means that the load control will calculate the target buffer size based on the selected tracks.
        See Also:
        Constant Field Values
      • DEFAULT_PRIORITIZE_TIME_OVER_SIZE_THRESHOLDS

        public static final boolean DEFAULT_PRIORITIZE_TIME_OVER_SIZE_THRESHOLDS
        Deprecated.
        The default prioritization of buffer time constraints over size constraints.
        See Also:
        Constant Field Values
      • DEFAULT_BACK_BUFFER_DURATION_MS

        public static final int DEFAULT_BACK_BUFFER_DURATION_MS
        Deprecated.
        The default back buffer duration in milliseconds.
        See Also:
        Constant Field Values
      • DEFAULT_RETAIN_BACK_BUFFER_FROM_KEYFRAME

        public static final boolean DEFAULT_RETAIN_BACK_BUFFER_FROM_KEYFRAME
        Deprecated.
        The default for whether the back buffer is retained from the previous keyframe.
        See Also:
        Constant Field Values
      • DEFAULT_VIDEO_BUFFER_SIZE

        public static final int DEFAULT_VIDEO_BUFFER_SIZE
        Deprecated.
        A default size in bytes for a video buffer.
        See Also:
        Constant Field Values
      • DEFAULT_AUDIO_BUFFER_SIZE

        public static final int DEFAULT_AUDIO_BUFFER_SIZE
        Deprecated.
        A default size in bytes for an audio buffer.
        See Also:
        Constant Field Values
      • DEFAULT_TEXT_BUFFER_SIZE

        public static final int DEFAULT_TEXT_BUFFER_SIZE
        Deprecated.
        A default size in bytes for a text buffer.
        See Also:
        Constant Field Values
      • DEFAULT_METADATA_BUFFER_SIZE

        public static final int DEFAULT_METADATA_BUFFER_SIZE
        Deprecated.
        A default size in bytes for a metadata buffer.
        See Also:
        Constant Field Values
      • DEFAULT_CAMERA_MOTION_BUFFER_SIZE

        public static final int DEFAULT_CAMERA_MOTION_BUFFER_SIZE
        Deprecated.
        A default size in bytes for a camera motion buffer.
        See Also:
        Constant Field Values
      • DEFAULT_IMAGE_BUFFER_SIZE

        public static final int DEFAULT_IMAGE_BUFFER_SIZE
        Deprecated.
        A default size in bytes for an image buffer.
        See Also:
        Constant Field Values
      • DEFAULT_MUXED_BUFFER_SIZE

        public static final int DEFAULT_MUXED_BUFFER_SIZE
        Deprecated.
        A default size in bytes for a muxed buffer (e.g. containing video, audio and text).
        See Also:
        Constant Field Values
      • DEFAULT_MIN_BUFFER_SIZE

        public static final int DEFAULT_MIN_BUFFER_SIZE
        Deprecated.
        The buffer size in bytes that will be used as a minimum target buffer in all cases. This is also the default target buffer before tracks are selected.
        See Also:
        Constant Field Values
    • Constructor Detail

      • DefaultLoadControl

        public DefaultLoadControl()
        Deprecated.
        Constructs a new instance, using the DEFAULT_* constants defined in this class.
      • DefaultLoadControl

        protected DefaultLoadControl​(DefaultAllocator allocator,
                                     int minBufferMs,
                                     int maxBufferMs,
                                     int bufferForPlaybackMs,
                                     int bufferForPlaybackAfterRebufferMs,
                                     int targetBufferBytes,
                                     boolean prioritizeTimeOverSizeThresholds,
                                     int backBufferDurationMs,
                                     boolean retainBackBufferFromKeyframe)
        Deprecated.
    • Method Detail

      • onPrepared

        public void onPrepared()
        Deprecated.
        Description copied from interface: LoadControl
        Called by the player when prepared with a new source.
        Specified by:
        onPrepared in interface LoadControl
      • onStopped

        public void onStopped()
        Deprecated.
        Description copied from interface: LoadControl
        Called by the player when stopped.
        Specified by:
        onStopped in interface LoadControl
      • onReleased

        public void onReleased()
        Deprecated.
        Description copied from interface: LoadControl
        Called by the player when released.
        Specified by:
        onReleased in interface LoadControl
      • getBackBufferDurationUs

        public long getBackBufferDurationUs()
        Deprecated.
        Description copied from interface: LoadControl
        Returns the duration of media to retain in the buffer prior to the current playback position, for fast backward seeking.

        Note: If LoadControl.retainBackBufferFromKeyframe() is false then seeking in the back-buffer will only be fast if the back-buffer contains a keyframe prior to the seek position.

        Note: Implementations should return a single value. Dynamic changes to the back-buffer are not currently supported.

        Specified by:
        getBackBufferDurationUs in interface LoadControl
        Returns:
        The duration of media to retain in the buffer prior to the current playback position, in microseconds.
      • retainBackBufferFromKeyframe

        public boolean retainBackBufferFromKeyframe()
        Deprecated.
        Description copied from interface: LoadControl
        Returns whether media should be retained from the keyframe before the current playback position minus LoadControl.getBackBufferDurationUs(), rather than any sample before or at that position.

        Warning: Returning true will cause the back-buffer size to depend on the spacing of keyframes in the media being played. Returning true is not recommended unless you control the media and are comfortable with the back-buffer size exceeding LoadControl.getBackBufferDurationUs() by as much as the maximum duration between adjacent keyframes in the media.

        Note: Implementations should return a single value. Dynamic changes to the back-buffer are not currently supported.

        Specified by:
        retainBackBufferFromKeyframe in interface LoadControl
        Returns:
        Whether media should be retained from the keyframe before the current playback position minus LoadControl.getBackBufferDurationUs(), rather than any sample before or at that position.
      • shouldStartPlayback

        public boolean shouldStartPlayback​(Timeline timeline,
                                           MediaPeriodId mediaPeriodId,
                                           long bufferedDurationUs,
                                           float playbackSpeed,
                                           boolean rebuffering,
                                           long targetLiveOffsetUs)
        Deprecated.
        Description copied from interface: LoadControl
        Called repeatedly by the player when it's loading the source, has yet to start playback, and has the minimum amount of data necessary for playback to be started. The value returned determines whether playback is actually started. The load control may opt to return false until some condition has been met (e.g. a certain amount of media is buffered).
        Specified by:
        shouldStartPlayback in interface LoadControl
        Parameters:
        timeline - The current Timeline in ExoPlayer. Can be Timeline.EMPTY only when the deprecated LoadControl.shouldStartPlayback(long, float, boolean, long) was called.
        mediaPeriodId - Identifies (in the current timeline) the MediaPeriod for which playback will start. Will be LoadControl.EMPTY_MEDIA_PERIOD_ID when timeline is empty.
        bufferedDurationUs - The duration of media that's currently buffered.
        playbackSpeed - The current factor by which playback is sped up.
        rebuffering - Whether the player is rebuffering. A rebuffer is defined to be caused by buffer depletion rather than a user action. Hence this parameter is false during initial buffering and when buffering as a result of a seek operation.
        targetLiveOffsetUs - The desired playback position offset to the live edge in microseconds, or C.TIME_UNSET if the media is not a live stream or no offset is configured.
        Returns:
        Whether playback should be allowed to start or resume.
      • calculateTargetBufferBytes

        protected int calculateTargetBufferBytes​(Renderer[] renderers,
                                                 ExoTrackSelection[] trackSelectionArray)
        Deprecated.
        Calculate target buffer size in bytes based on the selected tracks. The player will try not to exceed this target buffer. Only used when targetBufferBytes is C.LENGTH_UNSET.
        Parameters:
        renderers - The renderers for which the track were selected.
        trackSelectionArray - The selected tracks.
        Returns:
        The target buffer size in bytes.