Constructor Detail

• Builder

  public Builder()

  Creates a builder.

Method Detail

• setFallbackMinPlaybackSpeed

  public DefaultLivePlaybackSpeedControl.Builder setFallbackMinPlaybackSpeed​(float fallbackMinPlaybackSpeed)

  Sets the minimum playback speed that should be used if no minimum playback speed is defined by the media.

  The default is DefaultLivePlaybackSpeedControl.DEFAULT_FALLBACK_MIN_PLAYBACK_SPEED.

  Parameters:

  fallbackMinPlaybackSpeed - The fallback minimum factor by which playback can be sped up.

  Returns:

  This builder, for convenience.

• setFallbackMaxPlaybackSpeed

  public DefaultLivePlaybackSpeedControl.Builder setFallbackMaxPlaybackSpeed​(float fallbackMaxPlaybackSpeed)

  Sets the maximum playback speed that should be used if no maximum playback speed is defined by the media.

  The default is DefaultLivePlaybackSpeedControl.DEFAULT_FALLBACK_MAX_PLAYBACK_SPEED.

  Parameters:

  fallbackMaxPlaybackSpeed - The fallback maximum factor by which playback can be sped up.

  Returns:

  This builder, for convenience.

• setMinUpdateIntervalMs

  public DefaultLivePlaybackSpeedControl.Builder setMinUpdateIntervalMs​(long minUpdateIntervalMs)

  Sets the minimum interval between playback speed changes, in milliseconds.

  The default is DefaultLivePlaybackSpeedControl.DEFAULT_MIN_UPDATE_INTERVAL_MS.

  Parameters:

  minUpdateIntervalMs - The minimum interval between playback speed changes, in milliseconds.

  Returns:

  This builder, for convenience.

• setProportionalControlFactor

  public DefaultLivePlaybackSpeedControl.Builder setProportionalControlFactor​(float proportionalControlFactor)

  Sets the proportional control factor used to adjust the playback speed.

  The factor by which playback will be sped up is calculated as 1.0 + proportionalControlFactor x (currentLiveOffsetSec - targetLiveOffsetSec).

  The default is DefaultLivePlaybackSpeedControl.DEFAULT_PROPORTIONAL_CONTROL_FACTOR.

  Parameters:

  proportionalControlFactor - The proportional control factor used to adjust the playback speed.

  Returns:

  This builder, for convenience.

• setMaxLiveOffsetErrorMsForUnitSpeed

  public DefaultLivePlaybackSpeedControl.Builder setMaxLiveOffsetErrorMsForUnitSpeed​(long maxLiveOffsetErrorMsForUnitSpeed)

  Sets the maximum difference between the current live offset and the target live offset, in milliseconds, for which unit speed (1.0f) is used.

  The default is DefaultLivePlaybackSpeedControl.DEFAULT_MAX_LIVE_OFFSET_ERROR_MS_FOR_UNIT_SPEED.

  Parameters:

  maxLiveOffsetErrorMsForUnitSpeed - The maximum live offset error for which unit speed is used, in milliseconds.

  Returns:

  This builder, for convenience.

• setTargetLiveOffsetIncrementOnRebufferMs

  public DefaultLivePlaybackSpeedControl.Builder setTargetLiveOffsetIncrementOnRebufferMs​(long targetLiveOffsetIncrementOnRebufferMs)

  Sets the increment applied to the target live offset each time the player is rebuffering, in milliseconds.

  Parameters:

  targetLiveOffsetIncrementOnRebufferMs - The increment applied to the target live offset when the player is rebuffering, in milliseconds

  Returns:

  This builder, for convenience.

• setMinPossibleLiveOffsetSmoothingFactor

  public DefaultLivePlaybackSpeedControl.Builder setMinPossibleLiveOffsetSmoothingFactor​(float minPossibleLiveOffsetSmoothingFactor)

  Sets the smoothing factor when smoothing the minimum possible live offset that can be achieved during playback.

  The live playback speed control keeps track of the minimum possible live offset achievable during playback to know whether it can reduce the current target live offset. The minimum possible live offset is defined as currentLiveOffset - bufferedDuration. As the minimum possible live offset is constantly changing, it is smoothed over recent samples by applying exponential smoothing: smoothedMinPossibleOffset = smoothingFactor x smoothedMinPossibleOffset + (1-smoothingFactor) x currentMinPossibleOffset.

  Parameters:

  minPossibleLiveOffsetSmoothingFactor - The smoothing factor. Must be ≥ 0 and < 1.

  Returns:

  This builder, for convenience.

• build

  public DefaultLivePlaybackSpeedControl build()

  Builds an instance.