diff -r 000000000000 -r 6474c204b198 dom/webidl/AudioContext.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/AudioContext.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,83 @@
+/* -*- 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://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html
+ *
+ * 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 ();
+
+[Constructor,
+ Constructor(AudioChannel audioChannelType)]
+interface AudioContext : EventTarget {
+
+    readonly attribute AudioDestinationNode destination;
+    readonly attribute float sampleRate;
+    readonly attribute double currentTime;
+    readonly attribute AudioListener listener;
+
+    [NewObject, Throws]
+    AudioBuffer createBuffer(unsigned long numberOfChannels, unsigned long length, float sampleRate);
+
+    void decodeAudioData(ArrayBuffer audioData,
+                         DecodeSuccessCallback successCallback,
+                         optional DecodeErrorCallback errorCallback);
+
+    // AudioNode creation
+    [NewObject]
+    AudioBufferSourceNode createBufferSource();
+
+    [NewObject, Throws]
+    MediaStreamAudioDestinationNode createMediaStreamDestination();
+
+    [NewObject, Throws]
+    ScriptProcessorNode createScriptProcessor(optional unsigned long bufferSize = 0,
+                                              optional unsigned long numberOfInputChannels = 2,
+                                              optional unsigned long numberOfOutputChannels = 2);
+
+    [NewObject]
+    AnalyserNode createAnalyser();
+    [NewObject, Throws]
+    MediaElementAudioSourceNode createMediaElementSource(HTMLMediaElement mediaElement);
+    [NewObject, Throws]
+    MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream);
+    [NewObject]
+    GainNode createGain();
+    [NewObject, Throws]
+    DelayNode createDelay(optional double maxDelayTime = 1);
+    [NewObject]
+    BiquadFilterNode createBiquadFilter();
+    [NewObject]
+    WaveShaperNode createWaveShaper();
+    [NewObject]
+    PannerNode createPanner();
+    [NewObject]
+    ConvolverNode createConvolver();
+
+    [NewObject, Throws]
+    ChannelSplitterNode createChannelSplitter(optional unsigned long numberOfOutputs = 6);
+    [NewObject, Throws]
+    ChannelMergerNode createChannelMerger(optional unsigned long numberOfInputs = 6);
+
+    [NewObject]
+    DynamicsCompressorNode createDynamicsCompressor();
+
+    [NewObject]
+    OscillatorNode createOscillator();
+    [NewObject, Throws]
+    PeriodicWave createPeriodicWave(Float32Array real, Float32Array imag);
+
+};
+
+// Mozilla extensions
+partial interface AudioContext {
+  // Read AudioChannel.webidl for more information about this attribute.
+  [Pref="media.useAudioChannelService", SetterThrows]
+  attribute AudioChannel mozAudioChannelType;
+};