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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* The origin of this IDL file is
* https://webaudio.github.io/web-audio-api/
*
* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
* liability, trademark and document use rules apply.
*/
callback DecodeSuccessCallback = void (AudioBuffer decodedData);
callback DecodeErrorCallback = void ();
enum AudioContextState {
"suspended",
"running",
"closed"
};
dictionary PeriodicWaveConstraints {
boolean disableNormalization = false;
};
[Constructor,
Constructor(AudioChannel audioChannelType),
Pref="dom.webaudio.enabled"]
interface AudioContext : EventTarget {
readonly attribute AudioDestinationNode destination;
readonly attribute float sampleRate;
readonly attribute double currentTime;
readonly attribute AudioListener listener;
readonly attribute AudioContextState state;
[Throws]
Promise<void> suspend();
[Throws]
Promise<void> resume();
[Throws]
Promise<void> close();
attribute EventHandler onstatechange;
[NewObject, Throws]
AudioBuffer createBuffer(unsigned long numberOfChannels, unsigned long length, float sampleRate);
[Throws]
Promise<AudioBuffer> decodeAudioData(ArrayBuffer audioData,
optional DecodeSuccessCallback successCallback,
optional DecodeErrorCallback errorCallback);
// AudioNode creation
[NewObject, Throws]
AudioBufferSourceNode createBufferSource();
[NewObject, Throws]
ConstantSourceNode createConstantSource();
[NewObject, Throws]
MediaStreamAudioDestinationNode createMediaStreamDestination();
[NewObject, Throws]
ScriptProcessorNode createScriptProcessor(optional unsigned long bufferSize = 0,
optional unsigned long numberOfInputChannels = 2,
optional unsigned long numberOfOutputChannels = 2);
[NewObject, Throws]
StereoPannerNode createStereoPanner();
[NewObject, Throws]
AnalyserNode createAnalyser();
[NewObject, Throws, UnsafeInPrerendering]
MediaElementAudioSourceNode createMediaElementSource(HTMLMediaElement mediaElement);
[NewObject, Throws, UnsafeInPrerendering]
MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream);
[NewObject, Throws]
GainNode createGain();
[NewObject, Throws]
DelayNode createDelay(optional double maxDelayTime = 1);
[NewObject, Throws]
BiquadFilterNode createBiquadFilter();
[NewObject, Throws]
IIRFilterNode createIIRFilter(sequence<double> feedforward, sequence<double> feedback);
[NewObject, Throws]
WaveShaperNode createWaveShaper();
[NewObject, Throws]
PannerNode createPanner();
[NewObject, Throws]
ConvolverNode createConvolver();
[NewObject, Throws]
ChannelSplitterNode createChannelSplitter(optional unsigned long numberOfOutputs = 6);
[NewObject, Throws]
ChannelMergerNode createChannelMerger(optional unsigned long numberOfInputs = 6);
[NewObject, Throws]
DynamicsCompressorNode createDynamicsCompressor();
[NewObject, Throws]
OscillatorNode createOscillator();
[NewObject, Throws]
PeriodicWave createPeriodicWave(Float32Array real, Float32Array imag, optional PeriodicWaveConstraints constraints);
};
// Mozilla extensions
partial interface AudioContext {
// Read AudioChannel.webidl for more information about this attribute.
[Pref="media.useAudioChannelAPI"]
readonly attribute AudioChannel mozAudioChannelType;
// These 2 events are dispatched when the AudioContext object is muted by
// the AudioChannelService. It's call 'interrupt' because when this event is
// dispatched on a HTMLMediaElement, the audio stream is paused.
[Pref="media.useAudioChannelAPI"]
attribute EventHandler onmozinterruptbegin;
[Pref="media.useAudioChannelAPI"]
attribute EventHandler onmozinterruptend;
// This method is for test only.
[ChromeOnly] AudioChannel testAudioChannelInAudioNodeStream();
};
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