Added in API level 31

TrackChangeEvent

Kotlin |Java

public final class TrackChangeEvent
extends Event implements Parcelable

java.lang.Object
↳	android.media.metrics.Event
	↳	android.media.metrics.TrackChangeEvent

Playback track change event.

Summary

Nested classes
`class`	`TrackChangeEvent.Builder` A builder for `TrackChangeEvent`

Constants
`int`	`TRACK_CHANGE_REASON_ADAPTIVE` Track change reason for adaptive changes.
`int`	`TRACK_CHANGE_REASON_INITIAL` Track change reason for initial state.
`int`	`TRACK_CHANGE_REASON_MANUAL` Track change reason for manual changes.
`int`	`TRACK_CHANGE_REASON_OTHER` Other track change reason.
`int`	`TRACK_CHANGE_REASON_UNKNOWN` Unknown track change reason.
`int`	`TRACK_STATE_OFF` The track is off.
`int`	`TRACK_STATE_ON` The track is on.
`int`	`TRACK_TYPE_AUDIO` Audio track.
`int`	`TRACK_TYPE_TEXT` Text track.
`int`	`TRACK_TYPE_VIDEO` Video track.

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<TrackChangeEvent>`	`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`	`getAudioSampleRate()` Gets audio sample rate.
`int`	`getBitrate()` Gets bitrate.
`int`	`getChannelCount()` Gets channel count.
`String`	`getCodecName()` Gets codec name.
`String`	`getContainerMimeType()` Gets container MIME type.
`int`	`getHeight()` Gets video height.
`String`	`getLanguage()` Gets language code.
`String`	`getLanguageRegion()` Gets language region code.
`Bundle`	`getMetricsBundle()` Gets metrics-related information that is not supported by dedicated methods.
`String`	`getSampleMimeType()` Gets the MIME type of the video/audio/text samples.
`long`	`getTimeSinceCreatedMillis()` Gets timestamp since the creation of the log session in milliseconds.
`int`	`getTrackChangeReason()` Gets track change reason.
`int`	`getTrackState()` Gets track state.
`int`	`getTrackType()` Gets the track type.
`float`	`getVideoFrameRate()` Gets video frame rate.
`int`	`getWidth()` Gets video width.
`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


        
          android.media.metrics.Event

`Bundle`	`getMetricsBundle()` Gets metrics-related information that is not supported by dedicated methods.
`long`	`getTimeSinceCreatedMillis()` Gets time since the corresponding log session is created in millisecond.

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

TRACK_CHANGE_REASON_ADAPTIVE

Added in API level 31

public static final int TRACK_CHANGE_REASON_ADAPTIVE

Track change reason for adaptive changes.

Constant Value: 4 (0x00000004)

TRACK_CHANGE_REASON_INITIAL

Added in API level 31

public static final int TRACK_CHANGE_REASON_INITIAL

Track change reason for initial state.

Constant Value: 2 (0x00000002)

TRACK_CHANGE_REASON_MANUAL

Added in API level 31

public static final int TRACK_CHANGE_REASON_MANUAL

Track change reason for manual changes.

Constant Value: 3 (0x00000003)

TRACK_CHANGE_REASON_OTHER

Added in API level 31

public static final int TRACK_CHANGE_REASON_OTHER

Other track change reason.

Constant Value: 1 (0x00000001)

TRACK_CHANGE_REASON_UNKNOWN

Added in API level 31

public static final int TRACK_CHANGE_REASON_UNKNOWN

Unknown track change reason.

Constant Value: 0 (0x00000000)

TRACK_STATE_OFF

Added in API level 31

public static final int TRACK_STATE_OFF

The track is off.

Constant Value: 0 (0x00000000)

TRACK_STATE_ON

Added in API level 31

public static final int TRACK_STATE_ON

The track is on.

Constant Value: 1 (0x00000001)

TRACK_TYPE_AUDIO

Added in API level 31

public static final int TRACK_TYPE_AUDIO

Audio track.

Constant Value: 0 (0x00000000)

TRACK_TYPE_TEXT

Added in API level 31

public static final int TRACK_TYPE_TEXT

Text track.

Constant Value: 2 (0x00000002)

TRACK_TYPE_VIDEO

Added in API level 31

public static final int TRACK_TYPE_VIDEO

Video track.

Constant Value: 1 (0x00000001)

Fields

CREATOR

Added in API level 31

public static final Creator<TrackChangeEvent> CREATOR

Public methods

describeContents

Added in API level 31

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`: This value may be `null`.

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

getAudioSampleRate

Added in API level 31

public int getAudioSampleRate ()

Gets audio sample rate.

Returns
`int`	the sample rate, or -1 if unknown. Value is between -1 and Integer.MAX_VALUE inclusive

getBitrate

Added in API level 31

public int getBitrate ()

Gets bitrate.

Returns
`int`	the bitrate, or -1 if unknown. Value is between -1 and Integer.MAX_VALUE inclusive

getChannelCount

Added in API level 31

public int getChannelCount ()

Gets channel count.

Returns
`int`	the channel count, or -1 if unknown. Value is between -1 and Integer.MAX_VALUE inclusive

getCodecName

Added in API level 31

public String getCodecName ()

Gets codec name.

Returns
`String`	This value may be `null`.

getContainerMimeType

Added in API level 31

public String getContainerMimeType ()

Gets container MIME type.

Returns
`String`	This value may be `null`.

getHeight

Added in API level 31

public int getHeight ()

Gets video height.

Returns
`int`	the video height, or -1 if unknown. Value is between -1 and Integer.MAX_VALUE inclusive

getLanguage

Added in API level 31

public String getLanguage ()

Gets language code.

Returns
`String`	a two-letter ISO 639-1 language code. This value may be `null`.

getLanguageRegion

Added in API level 31

public String getLanguageRegion ()

Gets language region code.

Returns
`String`	an IETF BCP 47 optional language region subtag based on a two-letter country code. This value may be `null`.

getMetricsBundle

Added in API level 31

public Bundle getMetricsBundle ()

Gets metrics-related information that is not supported by dedicated methods.

It is intended to be used for backwards compatibility by the metrics infrastructure.

Returns
`Bundle`	This value cannot be `null`.

getSampleMimeType

Added in API level 31

public String getSampleMimeType ()

Gets the MIME type of the video/audio/text samples.

Returns
`String`	This value may be `null`.

getTimeSinceCreatedMillis

Added in API level 31

public long getTimeSinceCreatedMillis ()

Gets timestamp since the creation of the log session in milliseconds.

Returns
`long`	the timestamp since the creation in milliseconds, or -1 if unknown. Value is -1 or greater

See also:

getTrackChangeReason

Added in API level 31

public int getTrackChangeReason ()

Gets track change reason.

Returns
`int`	Value is `TRACK_CHANGE_REASON_UNKNOWN`, `TRACK_CHANGE_REASON_OTHER`, `TRACK_CHANGE_REASON_INITIAL`, `TRACK_CHANGE_REASON_MANUAL`, or `TRACK_CHANGE_REASON_ADAPTIVE`

getTrackState

Added in API level 31

public int getTrackState ()

Gets track state.

Returns
`int`	Value is `TRACK_STATE_OFF`, or `TRACK_STATE_ON`

getTrackType

Added in API level 31

public int getTrackType ()

Gets the track type.

The track type must be one of TRACK_TYPE_AUDIO, TRACK_TYPE_VIDEO, TRACK_TYPE_TEXT.

Returns
`int`	Value is `TRACK_TYPE_AUDIO`, `TRACK_TYPE_VIDEO`, or `TRACK_TYPE_TEXT`

getVideoFrameRate

Added in API level 31

public float getVideoFrameRate ()

Gets video frame rate.

Returns
`float`	the video frame rate, or -1 if unknown. Value is between -1 and Float.MAX_VALUE inclusive

getWidth

Added in API level 31

public int getWidth ()

Gets video width.

Returns
`int`	the video width, or -1 if unknown. Value is between -1 and Integer.MAX_VALUE inclusive

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 31

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

TrackChangeEvent

Summary

Nested classes

Constants

Inherited constants

Fields

Public methods

Inherited methods

Constants

TRACK_CHANGE_REASON_ADAPTIVE

TRACK_CHANGE_REASON_INITIAL

TRACK_CHANGE_REASON_MANUAL

TRACK_CHANGE_REASON_OTHER

TRACK_CHANGE_REASON_UNKNOWN

TRACK_STATE_OFF

TRACK_STATE_ON

TRACK_TYPE_AUDIO

TRACK_TYPE_TEXT

TRACK_TYPE_VIDEO

Fields

CREATOR

Public methods

describeContents

equals

getAudioSampleRate

getBitrate

getChannelCount

getCodecName

getContainerMimeType

getHeight

getLanguage

getLanguageRegion

getMetricsBundle

getSampleMimeType

getTimeSinceCreatedMillis

getTrackChangeReason

getTrackState

getTrackType

getVideoFrameRate

getWidth

hashCode

toString

writeToParcel