MediaElementAudioSourceNode extension type
The MediaElementAudioSourceNode
interface represents an audio source
consisting of an HTML audio
or video
element. It is an AudioNode that
acts as an audio source.
A MediaElementAudioSourceNode
has no inputs and exactly one output, and is
created using the AudioContext.createMediaElementSource method. The number
of channels in the output equals the number of channels of the audio
referenced by the HTMLMediaElement used in the creation of the node, or is
1 if the HTMLMediaElement has no audio.
Number of inputs | 0 |
---|---|
Number of outputs | 1 |
Channel count | 2 (but note that [AudioNode.channelCount] is only used for up-mixing and down-mixing [AudioNode] inputs, and [MediaElementAudioSourceNode] doesn't have any input) |
API documentation sourced from MDN Web Docs.
- on
- Implemented types
- Available extensions
Constructors
- MediaElementAudioSourceNode(AudioContext context, MediaElementAudioSourceOptions options)
-
factory
Properties
- channelCount ↔ int
-
The
channelCount
property of the AudioNode interface represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node.getter/setter pairinherited - channelCountMode ↔ ChannelCountMode
-
The
channelCountMode
property of the AudioNode interface represents an enumerated value describing the way channels must be matched between the node's inputs and outputs.getter/setter pairinherited - channelInterpretation ↔ ChannelInterpretation
-
The
channelInterpretation
property of the AudioNode interface represents an enumerated value describing how input channels are mapped to output channels when the number of inputs/outputs is different. For example, this setting defines how a mono input will be up-mixed to a stereo or 5.1 channel output, or how a quad channel input will be down-mixed to a stereo or mono output.getter/setter pairinherited - context → BaseAudioContext
-
The read-only
context
property of the AudioNode interface returns the associated BaseAudioContext, that is the object representing the processing graph the node is participating in.no setterinherited - hashCode → int
-
The hash code for this object.
no setterinherited
- mediaElement → HTMLMediaElement
-
The MediaElementAudioSourceNode interface's
read-only
mediaElement
property indicates the HTMLMediaElement that contains the audio track from which the node is receiving audio.no setter - numberOfInputs → int
-
The
numberOfInputs
property of the AudioNode interface returns the number of inputs feeding the node. Source nodes are defined as nodes having anumberOfInputs
property with a value of 0.no setterinherited - numberOfOutputs → int
-
The
numberOfOutputs
property of the AudioNode interface returns the number of outputs coming out of the node. Destination nodes — like AudioDestinationNode — have a value of 0 for this attribute.no setterinherited - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
addEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
addEventListener()
method of the EventTarget interface sets up a function that will be called whenever the specified event is delivered to the target.inherited -
connect(
JSObject destinationNodeOrDestinationParam, [int output, int input]) → AudioNode? -
The
connect()
method of the AudioNode interface lets you connect one of the node's outputs to a target, which may be either anotherAudioNode
(thereby directing the sound data to the specified node) or an AudioParam, so that the node's output data is automatically used to change the value of that parameter over time.inherited -
disconnect(
[JSAny destinationNodeOrDestinationParamOrOutput, int output, int input]) → void -
The
disconnect()
method of the AudioNode interface lets you disconnect one or more nodes from the node on which the method is called.inherited -
dispatchEvent(
Event event) → bool -
The
dispatchEvent()
method of the EventTarget sends an Event to the object, (synchronously) invoking the affected event listeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually withdispatchEvent()
.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
removeEventListener(
String type, EventListener? callback, [JSAny options]) → void -
The
removeEventListener()
method of the EventTarget interface removes an event listener previously registered with EventTarget.addEventListener from the target. The event listener to be removed is identified using a combination of the event type, the event listener function itself, and various optional options that may affect the matching process; see Matching event listeners for removal.inherited -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited