TvTrackInfo.Builder
public
static
final
class
TvTrackInfo.Builder
extends Object
| java.lang.Object | |
| ↳ | android.media.tv.TvTrackInfo.Builder |
A builder class for creating TvTrackInfo objects.
Summary
Public constructors | |
|---|---|
Builder(int type, String id)
Create a |
|
Public methods | |
|---|---|
TvTrackInfo
|
build()
Creates a |
TvTrackInfo.Builder
|
setAudioChannelCount(int audioChannelCount)
Sets the audio channel count. |
TvTrackInfo.Builder
|
setAudioDescription(boolean audioDescription)
Sets the audio description attribute of the audio. |
TvTrackInfo.Builder
|
setAudioSampleRate(int audioSampleRate)
Sets the audio sample rate, in the unit of Hz. |
TvTrackInfo.Builder
|
setDescription(CharSequence description)
Sets a user readable description for the current track. |
TvTrackInfo.Builder
|
setEncoding(String encoding)
Sets the encoding of the track. |
TvTrackInfo.Builder
|
setEncrypted(boolean encrypted)
Sets the encryption status of the track. |
TvTrackInfo.Builder
|
setExtra(Bundle extra)
Sets the extra information about the current track. |
TvTrackInfo.Builder
|
setHardOfHearing(boolean hardOfHearing)
Sets the hard of hearing attribute of the track. |
TvTrackInfo.Builder
|
setLanguage(String language)
Sets the language information of the current track. |
TvTrackInfo.Builder
|
setSpokenSubtitle(boolean spokenSubtitle)
Sets the spoken subtitle attribute of the audio. |
TvTrackInfo.Builder
|
setVideoActiveFormatDescription(byte videoActiveFormatDescription)
Sets the Active Format Description (AFD) code of the video. |
TvTrackInfo.Builder
|
setVideoFrameRate(float videoFrameRate)
Sets the frame rate of the video, in the unit fps (frames per rate). |
TvTrackInfo.Builder
|
setVideoHeight(int videoHeight)
Sets the height of the video, in the unit of pixels. |
TvTrackInfo.Builder
|
setVideoPixelAspectRatio(float videoPixelAspectRatio)
Sets the pixel aspect ratio (the ratio of a pixel's width to its height) of the video. |
TvTrackInfo.Builder
|
setVideoWidth(int videoWidth)
Sets the width of the video, in the unit of pixels. |
Inherited methods | |
|---|---|
Public constructors
Builder
public Builder (int type,
String id)Create a Builder. Any field that should be included in the TvTrackInfo
must be added.
| Parameters | |
|---|---|
type |
int: The type of the track.
Value is one of the following: |
id |
String: The ID of the track that uniquely identifies the current track among all the
other tracks in the same TV program.
This value cannot be null. |
| Throws | |
|---|---|
IllegalArgumentException |
if the type is not any of TvTrackInfo.TYPE_AUDIO,
TvTrackInfo.TYPE_VIDEO and TvTrackInfo.TYPE_SUBTITLE |
Public methods
build
public TvTrackInfo build ()
Creates a TvTrackInfo instance with the specified fields.
| Returns | |
|---|---|
TvTrackInfo |
The new TvTrackInfo instance.
This value cannot be null. |
setAudioChannelCount
public TvTrackInfo.Builder setAudioChannelCount (int audioChannelCount)
Sets the audio channel count. Valid only for TvTrackInfo.TYPE_AUDIO tracks.
| Parameters | |
|---|---|
audioChannelCount |
int: The audio channel count. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on an audio track |
setAudioDescription
public TvTrackInfo.Builder setAudioDescription (boolean audioDescription)
Sets the audio description attribute of the audio. Valid only for TvTrackInfo.TYPE_AUDIO
tracks.
For example of broadcast, audio description information may be referred to broadcast standard (e.g. ISO 639 Language Descriptor of ISO/IEC 13818-1, Supplementary Audio Language Descriptor, AC-3 Descriptor, Enhanced AC-3 Descriptor, AAC Descriptor of ETSI EN 300 468).
| Parameters | |
|---|---|
audioDescription |
boolean: The audio description attribute of the audio. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on an audio track |
setAudioSampleRate
public TvTrackInfo.Builder setAudioSampleRate (int audioSampleRate)
Sets the audio sample rate, in the unit of Hz. Valid only for TvTrackInfo.TYPE_AUDIO
tracks.
| Parameters | |
|---|---|
audioSampleRate |
int: The audio sample rate. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on an audio track |
setDescription
public TvTrackInfo.Builder setDescription (CharSequence description)
Sets a user readable description for the current track.
| Parameters | |
|---|---|
description |
CharSequence: The user readable description.
This value cannot be null. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
setEncoding
public TvTrackInfo.Builder setEncoding (String encoding)
Sets the encoding of the track.
For example of broadcast, codec information may be referred to broadcast standard (e.g. Component Descriptor of ETSI EN 300 468). In the case that track type is subtitle, mime type could be defined in broadcast standard (e.g. "text/dvb.subtitle" or "text/dvb.teletext" in ETSI TS 102 812 V1.3.1 section 7.6).
| Parameters | |
|---|---|
encoding |
String: The encoding of the track in the form of mime type.
This value may be null. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
setEncrypted
public TvTrackInfo.Builder setEncrypted (boolean encrypted)
Sets the encryption status of the track.
For example: ISO/IEC 13818-1 defines a CA descriptor that can be used to determine the encryption status of some broadcast streams.
| Parameters | |
|---|---|
encrypted |
boolean: The encryption status of the track. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
setExtra
public TvTrackInfo.Builder setExtra (Bundle extra)
Sets the extra information about the current track.
| Parameters | |
|---|---|
extra |
Bundle: The extra information.
This value cannot be null. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
setHardOfHearing
public TvTrackInfo.Builder setHardOfHearing (boolean hardOfHearing)
Sets the hard of hearing attribute of the track. Valid only for TvTrackInfo.TYPE_AUDIO and
TvTrackInfo.TYPE_SUBTITLE tracks.
For example of broadcast, hard of hearing information may be referred to broadcast standard (e.g. ISO 639 Language Descriptor of ISO/IEC 13818-1, Supplementary Audio Language Descriptor, AC-3 Descriptor, Enhanced AC-3 Descriptor, AAC Descriptor of ETSI EN 300 468).
| Parameters | |
|---|---|
hardOfHearing |
boolean: The hard of hearing attribute of the track. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on an audio track or a subtitle track |
setLanguage
public TvTrackInfo.Builder setLanguage (String language)
Sets the language information of the current track.
| Parameters | |
|---|---|
language |
String: The language string encoded by either ISO 639-1 or ISO 639-2/T.
This value cannot be null. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
setSpokenSubtitle
public TvTrackInfo.Builder setSpokenSubtitle (boolean spokenSubtitle)
Sets the spoken subtitle attribute of the audio. Valid only for TvTrackInfo.TYPE_AUDIO
tracks.
For example of broadcast, spoken subtitle information may be referred to broadcast standard (e.g. Supplementary Audio Language Descriptor of ETSI EN 300 468).
| Parameters | |
|---|---|
spokenSubtitle |
boolean: The spoken subtitle attribute of the audio. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on an audio track |
setVideoActiveFormatDescription
public TvTrackInfo.Builder setVideoActiveFormatDescription (byte videoActiveFormatDescription)
Sets the Active Format Description (AFD) code of the video.
Valid only for TvTrackInfo.TYPE_VIDEO tracks.
This is needed for applications to be able to scale the video properly based on the information about where in the coded picture the active video is. 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.
| Parameters | |
|---|---|
videoActiveFormatDescription |
byte: The AFD code of the video. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on a video track |
setVideoFrameRate
public TvTrackInfo.Builder setVideoFrameRate (float videoFrameRate)
Sets the frame rate of the video, in the unit fps (frames per rate). Valid only for
TvTrackInfo.TYPE_VIDEO tracks.
| Parameters | |
|---|---|
videoFrameRate |
float: The frame rate of the video. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on a video track |
setVideoHeight
public TvTrackInfo.Builder setVideoHeight (int videoHeight)
Sets the height of the video, in the unit of pixels. Valid only for TvTrackInfo.TYPE_VIDEO
tracks.
| Parameters | |
|---|---|
videoHeight |
int: The height of the video. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on a video track |
setVideoPixelAspectRatio
public TvTrackInfo.Builder setVideoPixelAspectRatio (float videoPixelAspectRatio)
Sets the pixel aspect ratio (the ratio of a pixel's width to its height) of the video.
Valid only for TvTrackInfo.TYPE_VIDEO tracks.
This is needed for applications to be able to scale the video properly for some video formats such as 720x576 4:3 and 720x576 16:9 where pixels are not square. By default, applications assume the value of 1.0 (square pixels), so it is not necessary to set the pixel aspect ratio for most video formats.
| Parameters | |
|---|---|
videoPixelAspectRatio |
float: The pixel aspect ratio of the video. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on a video track |
setVideoWidth
public TvTrackInfo.Builder setVideoWidth (int videoWidth)
Sets the width of the video, in the unit of pixels. Valid only for TvTrackInfo.TYPE_VIDEO
tracks.
| Parameters | |
|---|---|
videoWidth |
int: The width of the video. |
| Returns | |
|---|---|
TvTrackInfo.Builder |
This value cannot be null. |
| Throws | |
|---|---|
IllegalStateException |
if not called on a video track |