Added in API level 23

PlaybackParams

Kotlin |Java

public final class PlaybackParams
extends Object implements Parcelable

java.lang.Object
↳	android.media.PlaybackParams

Structure for common playback params. Used by AudioTrack AudioTrack#getPlaybackParams() and AudioTrack#setPlaybackParams(PlaybackParams) to control playback behavior.

audio fallback mode: select out-of-range parameter handling.

PlaybackParams#AUDIO_FALLBACK_MODE_DEFAULT: System will determine best handling.
PlaybackParams#AUDIO_FALLBACK_MODE_MUTE: Play silence for params normally out of range.
PlaybackParams#AUDIO_FALLBACK_MODE_FAIL: Return IllegalArgumentException from AudioTrack.setPlaybackParams(PlaybackParams).

pitch: increases or decreases the tonal frequency of the audio content. It is expressed as a multiplicative factor, where normal pitch is 1.0f.

speed: increases or decreases the time to play back a set of audio or video frames. It is expressed as a multiplicative factor, where normal speed is 1.0f.

Different combinations of speed and pitch may be used for audio playback; some common ones:

Pitch equals 1.0f. Speed change will be done with pitch preserved, often called timestretching.
Pitch equals speed. Speed change will be done by resampling, similar to AudioTrack#setPlaybackRate(int).

Summary

Constants
`int`	`AUDIO_FALLBACK_MODE_DEFAULT`
`int`	`AUDIO_FALLBACK_MODE_FAIL`
`int`	`AUDIO_FALLBACK_MODE_MUTE`

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<PlaybackParams>`	`CREATOR`

Public constructors
`PlaybackParams()`

Public methods
`PlaybackParams`	`allowDefaults()` Allows defaults to be returned for properties not set.
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`int`	`getAudioFallbackMode()` Retrieves the audio fallback mode.
`float`	`getPitch()` Retrieves the pitch factor.
`float`	`getSpeed()` Retrieves the speed factor.
`PlaybackParams`	`setAudioFallbackMode(int audioFallbackMode)` Sets the audio fallback mode.
`PlaybackParams`	`setPitch(float pitch)` Sets the pitch factor.
`PlaybackParams`	`setSpeed(float speed)` Sets the speed factor.
`void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Constants

AUDIO_FALLBACK_MODE_DEFAULT

Added in API level 23

public static final int AUDIO_FALLBACK_MODE_DEFAULT

Constant Value: 0 (0x00000000)

AUDIO_FALLBACK_MODE_FAIL

Added in API level 23

public static final int AUDIO_FALLBACK_MODE_FAIL

Constant Value: 2 (0x00000002)

AUDIO_FALLBACK_MODE_MUTE

Added in API level 23

public static final int AUDIO_FALLBACK_MODE_MUTE

Constant Value: 1 (0x00000001)

Fields

CREATOR

Added in API level 23

public static final Creator<PlaybackParams> CREATOR

Public constructors

PlaybackParams

Added in API level 23

public PlaybackParams ()

Public methods

allowDefaults

Added in API level 23

public PlaybackParams allowDefaults ()

Allows defaults to be returned for properties not set. Otherwise a IllegalArgumentException exception is raised when getting those properties which have defaults but have never been set.

Returns
`PlaybackParams`	this `PlaybackParams` instance.

describeContents

Added in API level 23

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

getAudioFallbackMode

Added in API level 23

public int getAudioFallbackMode ()

Retrieves the audio fallback mode.

Returns
`int`	audio fallback mode Value is `AUDIO_FALLBACK_MODE_DEFAULT`, `AUDIO_FALLBACK_MODE_MUTE`, or `AUDIO_FALLBACK_MODE_FAIL`

Throws
`IllegalStateException`	if the audio fallback mode is not set.

getPitch

Added in API level 23

public float getPitch ()

Retrieves the pitch factor.

Returns
`float`	pitch

Throws
`IllegalStateException`	if pitch is not set.

getSpeed

Added in API level 23

public float getSpeed ()

Retrieves the speed factor.

Returns
`float`	speed

Throws
`IllegalStateException`	if speed is not set.

setAudioFallbackMode

Added in API level 23

public PlaybackParams setAudioFallbackMode (int audioFallbackMode)

Sets the audio fallback mode.

Parameters
`audioFallbackMode`	`int`: Value is `AUDIO_FALLBACK_MODE_DEFAULT`, `AUDIO_FALLBACK_MODE_MUTE`, or `AUDIO_FALLBACK_MODE_FAIL`

Returns
`PlaybackParams`	this `PlaybackParams` instance.

setPitch

Added in API level 23

public PlaybackParams setPitch (float pitch)

Sets the pitch factor.

Returns
`PlaybackParams`	this `PlaybackParams` instance.

Throws
`IllegalArgumentException`	if the pitch is negative.

setSpeed

Added in API level 23

public PlaybackParams setSpeed (float speed)

Sets the speed factor.

Returns
`PlaybackParams`	this `PlaybackParams` instance.

writeToParcel

Added in API level 23

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
`dest`	`Parcel`: The Parcel in which the object should be written. This value cannot be `null`.
`flags`	`int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES