Module org.htmlunit
Package org.htmlunit.javascript.host.media

Class BaseAudioContext

java.lang.Object
org.htmlunit.corejs.javascript.SlotMapOwner<org.htmlunit.corejs.javascript.Scriptable>
org.htmlunit.corejs.javascript.ScriptableObject
org.htmlunit.javascript.HtmlUnitScriptable
org.htmlunit.javascript.host.event.EventTarget
org.htmlunit.javascript.host.media.BaseAudioContext
All Implemented Interfaces:
Serializable, Cloneable, org.htmlunit.corejs.javascript.ConstProperties<org.htmlunit.corejs.javascript.Scriptable>, org.htmlunit.corejs.javascript.debug.DebuggableObject, org.htmlunit.corejs.javascript.PropHolder<org.htmlunit.corejs.javascript.Scriptable>, org.htmlunit.corejs.javascript.Scriptable, org.htmlunit.corejs.javascript.SymbolScriptable
Direct Known Subclasses:
AudioContext, OfflineAudioContext
public class BaseAudioContext extends EventTarget
A JavaScript object for BaseAudioContext.
Author:
Ahmed Ashour, Ronald Brill
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    org.htmlunit.corejs.javascript.ScriptableObject.DescriptorInfo, org.htmlunit.corejs.javascript.ScriptableObject.KeyComparator, org.htmlunit.corejs.javascript.ScriptableObject.LambdaGetterFunction, org.htmlunit.corejs.javascript.ScriptableObject.LambdaSetterFunction

  • Field Summary

    Fields inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

    Fields inherited from class org.htmlunit.corejs.javascript.SlotMapOwner

    isSealed

    Fields inherited from interface org.htmlunit.corejs.javascript.Scriptable

    NOT_FOUND

  • Constructor Summary

    Constructors
    Constructor
    Description
    BaseAudioContext()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    AudioBuffer
    createBuffer()
     
    AudioBufferSourceNode
    createBufferSource()
     
    GainNode
    createGain()
     
    org.htmlunit.corejs.javascript.NativePromise
    decodeAudioData(org.htmlunit.corejs.javascript.typedarrays.NativeArrayBuffer buffer, org.htmlunit.corejs.javascript.Function success, org.htmlunit.corejs.javascript.Function error)
    The decodeAudioData() method of the BaseAudioContext Interface is used to asynchronously decode audio file data contained in an ArrayBuffer.
    void
    jsConstructor()
    Creates an instance.

    Methods inherited from class org.htmlunit.javascript.host.event.EventTarget

    addEventListener, clearEventListenersContainer, dispatchEvent, executeEventLocally, fireEvent, getEventHandler, getEventListenersContainer, hasEventHandlers, isEventHandlerOnWindow, removeEventListener, setEventHandler

    Methods inherited from class org.htmlunit.javascript.HtmlUnitScriptable

    clone, equivalentValues, get, getBrowserVersion, getClassName, getDefaultValue, getDomNodeOrDie, getDomNodeOrNull, getPrototype, getScriptableFor, getWindow, getWindow, getWindowOrWorkerGlobalScope, getWithPreemption, has, hasInstance, makeScriptableFor, put, setClassName, setDomNode, setDomNode, setupPromise, setupRejectedPromise

    Methods inherited from class org.htmlunit.corejs.javascript.ScriptableObject

    applyDescriptorToAttributeBitset, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkNotSealed, checkPropertyChangeForSlot, checkPropertyChangeForSlot, checkPropertyDefinition, checkPropertyDefinition, checkSlotRemoval, defineBuiltinProperty, defineBuiltinProperty, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineOwnProperty, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, delete, delete, deleteProperty, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureScriptableObjectButNotSymbol, ensureSymbolScriptable, ensureType, get, get, getAllIds, getAncestor, getArrayPrototype, getClassPrototype, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getObjectPrototype, getOwnPropertyDescriptor, getParentScope, getProperty, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getSuperProperty, getSuperProperty, getSuperProperty, getThis, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, hasProperty, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGenericDescriptor, isGetterOrSetter, isGetterOrSetter, isTrue, preventExtensions, put, put, putConst, putConstProperty, putConstProperty, putOwnProperty, putOwnProperty, putOwnProperty, putProperty, putProperty, putProperty, putProperty, putSuperProperty, putSuperProperty, putSuperProperty, querySlot, redefineProperty, redefineProperty, sameValue, sealObject, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setParentScope, setPrototype, size

    Methods inherited from class org.htmlunit.corejs.javascript.SlotMapOwner

    associateValue, checkNotSealed, copyAssociatedValue, createSlotMap, defineProperty, defineProperty, get, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getAttributes, getIds, has, has, isSealed, readMaps, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, writeMaps

    Methods inherited from class java.lang.Object

    equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.htmlunit.corejs.javascript.Scriptable

    get, getIds, has, has

    Methods inherited from interface org.htmlunit.corejs.javascript.SymbolScriptable

    get, has

  • Constructor Details

    • BaseAudioContext

      public BaseAudioContext()

  • Method Details

    • jsConstructor

      public void jsConstructor()
      Creates an instance.
      Overrides:
      jsConstructor in class EventTarget

    • createBufferSource

      public AudioBufferSourceNode createBufferSource()
      Returns:
      a new AudioBufferSourceNode, which can be used to play audio data contained within an AudioBuffer object.

    • createBuffer

      public AudioBuffer createBuffer()
      Returns:
      new, empty AudioBuffer object, which can then be populated by data, and played via an AudioBufferSourceNode.

    • createGain

      public GainNode createGain()
      Returns:
      a GainNode, which can be used to control the overall gain (or volume) of the audio graph.

    • decodeAudioData

      public org.htmlunit.corejs.javascript.NativePromise decodeAudioData(org.htmlunit.corejs.javascript.typedarrays.NativeArrayBuffer buffer, org.htmlunit.corejs.javascript.Function success, org.htmlunit.corejs.javascript.Function error)
      The decodeAudioData() method of the BaseAudioContext Interface is used to asynchronously decode audio file data contained in an ArrayBuffer. In this case the ArrayBuffer is loaded from XMLHttpRequest and FileReader. The decoded AudioBuffer is resampled to the AudioContext's sampling rate, then passed to a callback or promise.
      Parameters:
      buffer - An ArrayBuffer containing the audio data to be decoded, usually grabbed from XMLHttpRequest, WindowOrWorkerGlobalScope.fetch() or FileReader
      success - A callback function to be invoked when the decoding successfully finishes. The single argument to this callback is an AudioBuffer representing the decodedData (the decoded PCM audio data). Usually you'll want to put the decoded data into an AudioBufferSourceNode, from which it can be played and manipulated how you want.
      error - An optional error callback, to be invoked if an error occurs when the audio data is being decoded.
      Returns:
      the promise or null