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/*
* Copyright (C) 2010, Google Inc. All rights reserved.
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
enum AudioContextState {
"suspended",
"running",
"closed"
};
[
GarbageCollected,
ActiveDOMObject,
Conditional=WEB_AUDIO,
Constructor,
ConstructorCallWith=Document,
NoInterfaceObject,
RaisesException=Constructor,
] interface AudioContext : EventTarget {
// All rendered audio ultimately connects to destination, which represents the audio hardware.
readonly attribute AudioDestinationNode destination;
// All scheduled times are relative to this time in seconds.
readonly attribute double currentTime;
// All AudioNodes in the context run at this sample-rate (sample-frames per second).
readonly attribute float sampleRate;
// All panning is relative to this listener.
readonly attribute AudioListener listener;
// Current state of the AudioContext
readonly attribute AudioContextState state;
[RaisesException] AudioBuffer createBuffer(unsigned long numberOfChannels, unsigned long numberOfFrames, float sampleRate);
// Asynchronous audio file data decoding.
[MeasureAs=AudioContextDecodeAudioData, RaisesException] void decodeAudioData(ArrayBuffer audioData, AudioBufferCallback successCallback, optional AudioBufferCallback errorCallback);
// Sources
[MeasureAs=AudioContextCreateBufferSource] AudioBufferSourceNode createBufferSource();
[MeasureAs=AudioContextCreateMediaElementSource, RaisesException] MediaElementAudioSourceNode createMediaElementSource(HTMLMediaElement mediaElement);
[MeasureAs=AudioContextCreateMediaStreamSource, RaisesException] MediaStreamAudioSourceNode createMediaStreamSource(MediaStream mediaStream);
[MeasureAs=AudioContextCreateMediaStreamDestination] MediaStreamAudioDestinationNode createMediaStreamDestination();
// Processing nodes
[MeasureAs=AudioContextCreateGain] GainNode createGain();
[MeasureAs=AudioContextCreateDelay, RaisesException] DelayNode createDelay(optional double maxDelayTime);
[MeasureAs=AudioContextCreateBiquadFilter] BiquadFilterNode createBiquadFilter();
[MeasureAs=AudioContextCreateWaveShaper] WaveShaperNode createWaveShaper();
[MeasureAs=AudioContextCreatePanner] PannerNode createPanner();
[MeasureAs=AudioContextCreateConvolver] ConvolverNode createConvolver();
[MeasureAs=AudioContextCreateDynamicsCompressor] DynamicsCompressorNode createDynamicsCompressor();
[MeasureAs=AudioContextCreateAnalyser] AnalyserNode createAnalyser();
[MeasureAs=AudioContextCreateScriptProcessor, RaisesException] ScriptProcessorNode createScriptProcessor(optional unsigned long bufferSize, optional unsigned long numberOfInputChannels, optional unsigned long numberOfOutputChannels);
[MeasureAs=AudioContextCreatePanner] StereoPannerNode createStereoPanner();
[MeasureAs=AudioContextCreateOscillator] OscillatorNode createOscillator();
[MeasureAs=AudioContextCreatePeriodicWave, RaisesException] PeriodicWave createPeriodicWave(Float32Array real, Float32Array imag);
// Channel splitting and merging
[MeasureAs=AudioContextCreateChannelSplitter, RaisesException] ChannelSplitterNode createChannelSplitter(optional unsigned long numberOfOutputs);
[MeasureAs=AudioContextCreateChannelMerger, RaisesException] ChannelMergerNode createChannelMerger(optional unsigned long numberOfInputs);
// Pause/resume
[MeasureAs=AudioContextSuspend, CallWith=ScriptState, ImplementedAs=suspendContext] Promise suspend();
[MeasureAs=AudioContextResume, CallWith=ScriptState, ImplementedAs=resumeContext] Promise resume();
attribute EventHandler onstatechange;
};
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