AudioProcessorChain
@UnstableApi
public interface AudioProcessorChain
DefaultAudioSink.AudioProcessorChain |
This interface is deprecated. |
DefaultAudioSink.DefaultAudioProcessorChain |
The default audio processor chain, which applies a (possibly empty) chain of user-defined audio processors followed by |
Provides a chain of audio processors, which are used for any user-defined processing and applying playback parameters (if supported). Because applying playback parameters can skip and stretch/compress audio, the sink will query the chain for information on how to transform its output position to map it onto a media position, via getMediaDuration and getSkippedOutputFrameCount.
Summary
Public methods |
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|---|---|
abstract PlaybackParameters |
applyPlaybackParameters(PlaybackParameters playbackParameters)Configures audio processors to apply the specified playback parameters immediately, returning the new playback parameters, which may differ from those passed in. |
abstract boolean |
applySkipSilenceEnabled(boolean skipSilenceEnabled)Configures audio processors to apply whether to skip silences immediately, returning the new value. |
abstract AudioProcessor[] |
Returns the fixed chain of audio processors that will process audio. |
abstract long |
getMediaDuration(long playoutDuration)Returns the media duration corresponding to the specified playout duration, taking speed adjustment due to audio processing into account. |
abstract long |
Returns the number of output audio frames skipped since the audio processors were last flushed. |
Public methods
applyPlaybackParameters
abstract PlaybackParameters applyPlaybackParameters(PlaybackParameters playbackParameters)
Configures audio processors to apply the specified playback parameters immediately, returning the new playback parameters, which may differ from those passed in. Only called when processors have no input pending.
| Parameters | |
|---|---|
PlaybackParameters playbackParameters |
The playback parameters to try to apply. |
| Returns | |
|---|---|
PlaybackParameters |
The playback parameters that were actually applied. |
applySkipSilenceEnabled
abstract boolean applySkipSilenceEnabled(boolean skipSilenceEnabled)
Configures audio processors to apply whether to skip silences immediately, returning the new value. Only called when processors have no input pending.
| Parameters | |
|---|---|
boolean skipSilenceEnabled |
Whether silences should be skipped in the audio stream. |
| Returns | |
|---|---|
boolean |
The new value. |
getAudioProcessors
abstract AudioProcessor[] getAudioProcessors()
Returns the fixed chain of audio processors that will process audio. This method is called once during initialization, but audio processors may change state to become active/inactive during playback.
getMediaDuration
abstract long getMediaDuration(long playoutDuration)
Returns the media duration corresponding to the specified playout duration, taking speed adjustment due to audio processing into account.
The scaling performed by this method will use the actual playback speed achieved by the audio processor chain, on average, since it was last flushed. This may differ very slightly from the target playback speed.
| Parameters | |
|---|---|
long playoutDuration |
The playout duration to scale. |
| Returns | |
|---|---|
long |
The corresponding media duration, in the same units as |
getSkippedOutputFrameCount
abstract long getSkippedOutputFrameCount()
Returns the number of output audio frames skipped since the audio processors were last flushed.