Class DefaultLivePlaybackSpeedControl.Builder
- java.lang.Object
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- com.google.android.exoplayer2.DefaultLivePlaybackSpeedControl.Builder
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- Enclosing class:
- DefaultLivePlaybackSpeedControl
public static final class DefaultLivePlaybackSpeedControl.Builder extends Object
Builder for aDefaultLivePlaybackSpeedControl
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Constructor Summary
Constructors Constructor Description Builder()
Creates a builder.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description DefaultLivePlaybackSpeedControl
build()
Builds an instance.DefaultLivePlaybackSpeedControl.Builder
setFallbackMaxPlaybackSpeed(float fallbackMaxPlaybackSpeed)
Sets the maximum playback speed that should be used if no maximum playback speed is defined by the media.DefaultLivePlaybackSpeedControl.Builder
setFallbackMinPlaybackSpeed(float fallbackMinPlaybackSpeed)
Sets the minimum playback speed that should be used if no minimum playback speed is defined by the media.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.DefaultLivePlaybackSpeedControl.Builder
setMinPossibleLiveOffsetSmoothingFactor(float minPossibleLiveOffsetSmoothingFactor)
Sets the smoothing factor when smoothing the minimum possible live offset that can be achieved during playback.DefaultLivePlaybackSpeedControl.Builder
setMinUpdateIntervalMs(long minUpdateIntervalMs)
Sets the minimum interval between playback speed changes, in milliseconds.DefaultLivePlaybackSpeedControl.Builder
setProportionalControlFactor(float proportionalControlFactor)
Sets the proportional control factor used to adjust the playback speed.DefaultLivePlaybackSpeedControl.Builder
setTargetLiveOffsetIncrementOnRebufferMs(long targetLiveOffsetIncrementOnRebufferMs)
Sets the increment applied to the target live offset each time the player is rebuffering, in milliseconds.
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Method Detail
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setFallbackMinPlaybackSpeed
@CanIgnoreReturnValue 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.
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setFallbackMaxPlaybackSpeed
@CanIgnoreReturnValue 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.
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setMinUpdateIntervalMs
@CanIgnoreReturnValue 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.
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setProportionalControlFactor
@CanIgnoreReturnValue 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.
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setMaxLiveOffsetErrorMsForUnitSpeed
@CanIgnoreReturnValue 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.
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setTargetLiveOffsetIncrementOnRebufferMs
@CanIgnoreReturnValue 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.
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setMinPossibleLiveOffsetSmoothingFactor
@CanIgnoreReturnValue 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.
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build
public DefaultLivePlaybackSpeedControl build()
Builds an instance.
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