Added in API level 31

Summary: Constants | Inherited Constants | Fields | Methods | Inherited Methods

AudioProfile

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Kotlin |Java

public class AudioProfile
extends Object implements Parcelable

java.lang.Object
↳	android.media.AudioProfile

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An AudioProfile is specific to an audio format and lists supported sampling rates and channel masks for that format. An AudioDeviceInfo has a list of supported AudioProfiles. There can be multiple profiles whose encoding format is the same. This usually happens when an encoding format is only supported when it is encapsulated by some particular encapsulation types. If there are multiple encapsulation types that can carry this encoding format, they will be reported in different audio profiles. The application can choose any of the encapsulation types.

Summary

Constants
int	AUDIO_ENCAPSULATION_TYPE_IEC61937 Encapsulation format is defined in standard IEC 61937.
int	AUDIO_ENCAPSULATION_TYPE_NONE No encapsulation type is specified.
int	AUDIO_ENCAPSULATION_TYPE_PCM Encapsulation format is PCM, which can be used by other formats that can be wrapped in a PCM frame, such as DSD(Direct Stream Digital).

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<AudioProfile>	CREATOR

Public methods
int	describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
boolean	equals(Object o) Indicates whether some other object is "equal to" this one.
int[]	getChannelIndexMasks()
int[]	getChannelMasks()
int	getEncapsulationType() The encapsulation type indicates what encapsulation type is required when the framework is using this format when playing to a device exposing this audio profile.
int	getFormat()
int[]	getSampleRates()
int	hashCode() Returns a hash code value for the object.
String	toString() Returns a string representation of the object.
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_ENCAPSULATION_TYPE_IEC61937

Added in API level 31

public static final int AUDIO_ENCAPSULATION_TYPE_IEC61937

Encapsulation format is defined in standard IEC 61937.

Constant Value: 1 (0x00000001)

AUDIO_ENCAPSULATION_TYPE_NONE

Added in API level 31

public static final int AUDIO_ENCAPSULATION_TYPE_NONE

No encapsulation type is specified.

Constant Value: 0 (0x00000000)

AUDIO_ENCAPSULATION_TYPE_PCM

Added in API level 34

public static final int AUDIO_ENCAPSULATION_TYPE_PCM

Encapsulation format is PCM, which can be used by other formats that can be wrapped in a PCM frame, such as DSD(Direct Stream Digital).

Constant Value: 2 (0x00000002)

Fields

CREATOR

Added in API level 33

public static final Creator<AudioProfile> CREATOR

Public methods

describeContents

Added in API level 33

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

equals

Added in API level 31

public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o	Object: the reference object with which to compare.

Returns
boolean	true if this object is the same as the obj argument; false otherwise.

getChannelIndexMasks

Added in API level 31

public int[] getChannelIndexMasks ()

Returns
int[]	an array of channel index masks that are associated with the encoding format. This value cannot be null.

getChannelMasks

Added in API level 31

public int[] getChannelMasks ()

Returns
int[]	an array of channel position masks that are associated with the encoding format. This value cannot be null.

getEncapsulationType

Added in API level 31

public int getEncapsulationType ()

The encapsulation type indicates what encapsulation type is required when the framework is using this format when playing to a device exposing this audio profile. When encapsulation is required, only playback with AudioTrack API is supported. But playback with MediaPlayer is not. When an encapsulation type is required, the AudioFormat encoding selected when creating the AudioTrack must match the encapsulation type, e.g AudioFormat.ENCODING_IEC61937 for AUDIO_ENCAPSULATION_TYPE_IEC61937.

Returns
int	an integer representing the encapsulation type Value is AUDIO_ENCAPSULATION_TYPE_NONE, AUDIO_ENCAPSULATION_TYPE_IEC61937, or AUDIO_ENCAPSULATION_TYPE_PCM

See also:

• AUDIO_ENCAPSULATION_TYPE_NONE
• AUDIO_ENCAPSULATION_TYPE_IEC61937
• AUDIO_ENCAPSULATION_TYPE_PCM

getFormat

Added in API level 31

public int getFormat ()

Returns

int

the encoding format for this AudioProfile. Value is AudioFormat.ENCODING_DEFAULT, AudioFormat.ENCODING_PCM_16BIT, AudioFormat.ENCODING_PCM_8BIT, AudioFormat.ENCODING_PCM_FLOAT, AudioFormat.ENCODING_AC3, AudioFormat.ENCODING_E_AC3, AudioFormat.ENCODING_DTS, AudioFormat.ENCODING_DTS_HD, AudioFormat.ENCODING_MP3, AudioFormat.ENCODING_AAC_LC, AudioFormat.ENCODING_AAC_HE_V1, AudioFormat.ENCODING_AAC_HE_V2, AudioFormat.ENCODING_IEC61937, AudioFormat.ENCODING_DOLBY_TRUEHD, AudioFormat.ENCODING_AAC_ELD, AudioFormat.ENCODING_AAC_XHE, AudioFormat.ENCODING_AC4, AudioFormat.ENCODING_E_AC3_JOC, AudioFormat.ENCODING_DOLBY_MAT, AudioFormat.ENCODING_OPUS, AudioFormat.ENCODING_PCM_24BIT_PACKED, AudioFormat.ENCODING_PCM_32BIT, AudioFormat.ENCODING_MPEGH_BL_L3, AudioFormat.ENCODING_MPEGH_BL_L4, AudioFormat.ENCODING_MPEGH_LC_L3, AudioFormat.ENCODING_MPEGH_LC_L4, AudioFormat.ENCODING_DTS_UHD_P1, AudioFormat.ENCODING_DRA, AudioFormat.ENCODING_DTS_HD_MA, AudioFormat.ENCODING_DTS_UHD_P2, or AudioFormat.ENCODING_DSD

getSampleRates

Added in API level 31

public int[] getSampleRates ()

Returns
int[]	an array of sample rates that are associated with the encoding format. This value cannot be null.

hashCode

Added in API level 31

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int	a hash code value for this object.

toString

Added in API level 31

public String toString ()

Returns a string representation of the object.

Returns
String	a string representation of the object.

writeToParcel

Added in API level 33

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest	Parcel: 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