public final class TvTrackInfo
extends Object
implements Parcelable
java.lang.Object | |
↳ | android.media.tv.TvTrackInfo |
Encapsulates the format of tracks played in TvInputService
.
Nested classes |
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class |
TvTrackInfo.Builder A builder class for creating |
Constants |
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int |
TYPE_AUDIO The type value for audio tracks. |
int |
TYPE_SUBTITLE The type value for subtitle tracks. |
int |
TYPE_VIDEO The type value for video tracks. |
Inherited constants |
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![]() android.os.Parcelable
|
Fields |
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public static final Creator<TvTrackInfo> |
CREATOR
|
Public methods |
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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. |
final int |
getAudioChannelCount() Returns the audio channel count. |
final int |
getAudioSampleRate() Returns the audio sample rate, in the unit of Hz. |
final CharSequence |
getDescription() Returns a user readable description for the current track. |
final Bundle |
getExtra() Returns the extra information about the current track. |
final String |
getId() Returns the ID of the track. |
final String |
getLanguage() Returns the language information encoded by either ISO 639-1 or ISO 639-2/T. |
final int |
getType() Returns the type of the track. |
final byte |
getVideoActiveFormatDescription() Returns the Active Format Description (AFD) code of the video. |
final float |
getVideoFrameRate() Returns the frame rate of the video, in the unit of fps (frames per second). |
final int |
getVideoHeight() Returns the height of the video, in the unit of pixels. |
final float |
getVideoPixelAspectRatio() Returns the pixel aspect ratio (the ratio of a pixel's width to its height) of the video. |
final int |
getVideoWidth() Returns the width of the video, in the unit of pixels. |
int |
hashCode() Returns a hash code value for the object. |
void |
writeToParcel(Parcel dest, int flags) Used to package this object into a |
Inherited methods |
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![]() java.lang.Object
|
|
![]() android.os.Parcelable
|
int TYPE_AUDIO
The type value for audio tracks.
Constant Value: 0 (0x00000000)
int TYPE_SUBTITLE
The type value for subtitle tracks.
Constant Value: 2 (0x00000002)
int TYPE_VIDEO
The type value for video tracks.
Constant Value: 1 (0x00000001)
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(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. |
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:
x
, x.equals(x)
should return true
. x
and y
, x.equals(y)
should return true
if and only if y.equals(x)
returns true
. x
, y
, and z
, if x.equals(y)
returns true
and y.equals(z)
returns true
, then x.equals(z)
should return true
. 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. x
, x.equals(null)
should return false
. The equals
method for class Object
implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x
and y
, this method returns true
if and only if x
and y
refer to the same object (x == y
has the value true
).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the general contract for the hashCode
method, which states that equal objects must have equal hash codes.
Parameters | |
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o |
Object : the reference object with which to compare. |
Returns | |
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boolean |
true if this object is the same as the obj argument; false otherwise. |
int getAudioChannelCount ()
Returns the audio channel count. Valid only for TYPE_AUDIO
tracks.
Returns | |
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int |
Throws | |
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IllegalStateException |
if not called on an audio track |
int getAudioSampleRate ()
Returns the audio sample rate, in the unit of Hz. Valid only for TYPE_AUDIO
tracks.
Returns | |
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int |
Throws | |
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IllegalStateException |
if not called on an audio track |
CharSequence getDescription ()
Returns a user readable description for the current track.
Returns | |
---|---|
CharSequence |
Bundle getExtra ()
Returns the extra information about the current track.
Returns | |
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Bundle |
String getLanguage ()
Returns the language information encoded by either ISO 639-1 or ISO 639-2/T. If the language is unknown or could not be determined, the corresponding value will be null
.
Returns | |
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String |
int getType ()
Returns the type of the track. The type should be one of the followings: TYPE_AUDIO
, TYPE_VIDEO
and TYPE_SUBTITLE
.
Returns | |
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int |
byte getVideoActiveFormatDescription ()
Returns the Active Format Description (AFD) code of the video. Valid only for TYPE_VIDEO
tracks.
The complete list of values are defined in ETSI TS 101 154 V1.7.1 Annex B, ATSC A/53 Part 4 and SMPTE 2016-1-2007.
Returns | |
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byte |
Throws | |
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IllegalStateException |
if not called on a video track |
float getVideoFrameRate ()
Returns the frame rate of the video, in the unit of fps (frames per second). Valid only for TYPE_VIDEO
tracks.
Returns | |
---|---|
float |
Throws | |
---|---|
IllegalStateException |
if not called on a video track |
int getVideoHeight ()
Returns the height of the video, in the unit of pixels. Valid only for TYPE_VIDEO
tracks.
Returns | |
---|---|
int |
Throws | |
---|---|
IllegalStateException |
if not called on a video track |
float getVideoPixelAspectRatio ()
Returns the pixel aspect ratio (the ratio of a pixel's width to its height) of the video. Valid only for TYPE_VIDEO
tracks.
Returns | |
---|---|
float |
Throws | |
---|---|
IllegalStateException |
if not called on a video track |
int getVideoWidth ()
Returns the width of the video, in the unit of pixels. Valid only for TYPE_VIDEO
tracks.
Returns | |
---|---|
int |
Throws | |
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IllegalStateException |
if not called on a video track |
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:
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. equals(Object)
method, then calling the hashCode
method on each of the two objects must produce the same integer result. equals(java.lang.Object)
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. As much as is reasonably practical, the hashCode method defined by class Object
does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
Returns | |
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int |
a hash code value for this object. |
void writeToParcel (Parcel dest, int flags)
Used to package this object into a Parcel
.
Parameters | |
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dest |
Parcel : The Parcel to be written. |
flags |
int : The flags used for parceling. |