All Implemented Interfaces:

Serializable, Cloneable, org.htmlunit.corejs.javascript.ConstProperties, org.htmlunit.corejs.javascript.debug.DebuggableObject, org.htmlunit.corejs.javascript.Scriptable, org.htmlunit.corejs.javascript.SymbolScriptable

Direct Known Subclasses:

AudioContext, OfflineAudioContext

public class BaseAudioContext
extends EventTarget 

Author:

Ahmed Ashour, Ronald Brill

See Also:

Serialized Form

• Nested Class Summary

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

    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 interface org.htmlunit.corejs.javascript.Scriptable

    NOT_FOUND

• Constructor Summary

  Constructors

  Constructor and Description
  BaseAudioContext ()

• Method Summary

  All Methods

  Modifier and Type	Method and 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, getWindowFromTopCallScope, getWithPreemption, has, hasInstance, initParentScope, makeScriptableFor, put, setClassName, setDomNode, setDomNode, setParentScope, setupPromise, setupRejectedPromise

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

    applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChangeForSlot, checkPropertyDefinition, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineBuiltInProperty, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, 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, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getIds, getObjectPrototype, getOwnPropertyDescriptor, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getSuperProperty, getSuperProperty, getSuperProperty, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, has, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, put, putConst, putConstProperty, putOwnProperty, putOwnProperty, putOwnProperty, putProperty, putProperty, putProperty, putSuperProperty, putSuperProperty, putSuperProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setPrototype, size

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

    createSlotMap

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • BaseAudioContext

    public BaseAudioContext()

• Method Detail

  • 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