TrackChangeEvent

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

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

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

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