MediaTrackConstraints extension type

The MediaTrackConstraints dictionary is used to describe a set of capabilities and the value or values each can take on. A constraints dictionary is passed into MediaStreamTrack.applyConstraints to allow a script to establish a set of exact (required) values or ranges and/or preferred values or ranges of values for the track, and the most recently-requested set of custom constraints can be retrieved by calling MediaStreamTrack.getConstraints.

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API documentation sourced from MDN Web Docs.

on

• JSObject

Implemented types

• MediaTrackConstraintSet
• JSObject

Available extensions

• JSAnyOperatorExtension
• JSAnyUtilityExtension
• JSObjectUnsafeUtilExtension
• NullableUndefineableJSAnyExtension

Constructors

MediaTrackConstraints({ConstrainULong width, ConstrainULong height, ConstrainDouble aspectRatio, ConstrainDouble frameRate, ConstrainDOMString facingMode, ConstrainDOMString resizeMode, ConstrainULong sampleRate, ConstrainULong sampleSize, ConstrainBoolean echoCancellation, ConstrainBoolean autoGainControl, ConstrainBoolean noiseSuppression, ConstrainDouble latency, ConstrainULong channelCount, ConstrainDOMString deviceId, ConstrainDOMString groupId, ConstrainDOMString whiteBalanceMode, ConstrainDOMString exposureMode, ConstrainDOMString focusMode, ConstrainPoint2D pointsOfInterest, ConstrainDouble exposureCompensation, ConstrainDouble exposureTime, ConstrainDouble colorTemperature, ConstrainDouble iso, ConstrainDouble brightness, ConstrainDouble contrast, ConstrainDouble saturation, ConstrainDouble sharpness, ConstrainDouble focusDistance, JSAny pan, JSAny tilt, JSAny zoom, ConstrainBoolean torch, ConstrainDOMString displaySurface, ConstrainBoolean logicalSurface, ConstrainDOMString cursor, ConstrainBoolean restrictOwnAudio, ConstrainBoolean suppressLocalAudioPlayback, JSArray<MediaTrackConstraintSet> advanced})

factory

Properties

advanced ↔ JSArray<MediaTrackConstraintSet>

getter/setter pair

aspectRatio ↔ ConstrainDouble

getter/setter pair, inherited

autoGainControl ↔ ConstrainBoolean

getter/setter pair, inherited

brightness ↔ ConstrainDouble

getter/setter pair, inherited

channelCount ↔ ConstrainULong

getter/setter pair, inherited

colorTemperature ↔ ConstrainDouble

getter/setter pair, inherited

contrast ↔ ConstrainDouble

getter/setter pair, inherited

cursor ↔ ConstrainDOMString

getter/setter pair, inherited

deviceId ↔ ConstrainDOMString

getter/setter pair, inherited

displaySurface ↔ ConstrainDOMString

getter/setter pair, inherited

echoCancellation ↔ ConstrainBoolean

getter/setter pair, inherited

exposureCompensation ↔ ConstrainDouble

getter/setter pair, inherited

exposureMode ↔ ConstrainDOMString

getter/setter pair, inherited

exposureTime ↔ ConstrainDouble

getter/setter pair, inherited

facingMode ↔ ConstrainDOMString

getter/setter pair, inherited

focusDistance ↔ ConstrainDouble

getter/setter pair, inherited

focusMode ↔ ConstrainDOMString

getter/setter pair, inherited

frameRate ↔ ConstrainDouble

getter/setter pair, inherited

groupId ↔ ConstrainDOMString

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

height ↔ ConstrainULong

getter/setter pair, inherited

isDefinedAndNotNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

no setter

isNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

Whether this value corresponds to JavaScript null.

no setter

iso ↔ ConstrainDouble

getter/setter pair, inherited

isTruthy → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of !!this in JavaScript.

no setter

isUndefined → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

Whether this value corresponds to JavaScript undefined.

no setter

isUndefinedOrNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

no setter

latency ↔ ConstrainDouble

getter/setter pair, inherited

logicalSurface ↔ ConstrainBoolean

getter/setter pair, inherited

noiseSuppression ↔ ConstrainBoolean

getter/setter pair, inherited

not → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of !this in JavaScript.

no setter

pan ↔ JSAny

getter/setter pair, inherited

pointsOfInterest ↔ ConstrainPoint2D

getter/setter pair, inherited

resizeMode ↔ ConstrainDOMString

getter/setter pair, inherited

restrictOwnAudio ↔ ConstrainBoolean

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sampleRate ↔ ConstrainULong

getter/setter pair, inherited

sampleSize ↔ ConstrainULong

getter/setter pair, inherited

saturation ↔ ConstrainDouble

getter/setter pair, inherited

sharpness ↔ ConstrainDouble

getter/setter pair, inherited

suppressLocalAudioPlayback ↔ ConstrainBoolean

getter/setter pair, inherited

tilt ↔ JSAny

getter/setter pair, inherited

torch ↔ ConstrainBoolean

getter/setter pair, inherited

whiteBalanceMode ↔ ConstrainDOMString

getter/setter pair, inherited

width ↔ ConstrainULong

getter/setter pair, inherited

zoom ↔ JSAny

getter/setter pair, inherited

Methods

add(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this + any in JavaScript.

and(JSAny? any) → JSAny?

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this && any in JavaScript.

callMethod<R extends JSAny?>(JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4]) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Calls method on this JSObject with up to four arguments.

callMethodVarArgs<R extends JSAny?>(JSAny method, [List<JSAny?>? arguments]) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Calls method on this JSObject with a variable number of arguments.

dartify() → Object?

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Converts a JavaScript value to the Dart equivalent if possible.

delete(JSAny property) → JSBoolean

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Deletes the property with key property from this JSObject.

divide(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this / any in JavaScript.

equals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this == any in JavaScript.

exponentiate(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this ** any in JavaScript.

getProperty<R extends JSAny?>(JSAny property) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

The value of the property key property of this JSObject.

greaterThan(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this > any in JavaScript.

greaterThanOrEqualTo(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this >= any in JavaScript.

has(String property) → bool

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for hasProperty to check whether this JSObject contains the property key property, but takes and returns a Dart value.

hasProperty(JSAny property) → JSBoolean

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Whether or not this JSObject contains the property key property.

instanceof(JSFunction constructor) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instanceof constructor.

instanceOfString(String constructorName) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instanceof the constructor that is defined by constructorName, which is looked up in the globalContext.

isA<T extends JSAny?>() → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instance of the JavaScript type that is declared by T.

lessThan(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this < any in JavaScript.

lessThanOrEqualTo(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this <= any in JavaScript.

modulo(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this % any in JavaScript.

multiply(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this * any in JavaScript.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this != any in JavaScript.

or(JSAny? any) → JSAny?

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this || any in JavaScript.

setProperty(JSAny property, JSAny? value) → void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Write the value of property key property of this JSObject.

strictEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this === any in JavaScript.

strictNotEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this !== any in JavaScript.

subtract(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this - any in JavaScript.

toString() → String

A string representation of this object.

inherited

typeofEquals(String typeString) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether the result of typeof on this JSAny? is typeString.

unsignedRightShift(JSAny? any) → JSNumber

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this >>> any in JavaScript.

Operators

operator ==(Object other) → bool

The equality operator.

inherited

operator [](String property) → JSAny?

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for getProperty to get the value of the property key property of this JSObject, but takes and returns a Dart value.

operator []=(String property, JSAny? value) → void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for setProperty to write the value of the property key property of this JSObject, but takes a Dart value.