interface EventTarget {
void addEventListener(DOMString type, EventListener? callback, optional boolean capture = false);
void removeEventListener(DOMString type, EventListener? callback, optional boolean capture = false);
boolean dispatchEvent(Event event);
};
/*
callback interface EventListener {
void handleEvent(Event event);
};
*/
// Callback interfaces are not supported yet, but that's ok
interface EventListener {};
callback DecodeErrorCallback = void (DOMException error);
callback DecodeSuccessCallback = void (AudioBuffer decodedData);
interface BaseAudioContext : EventTarget {
readonly attribute AudioDestinationNode destination;
readonly attribute float sampleRate;
readonly attribute double currentTime;
readonly attribute AudioListener listener;
readonly attribute AudioContextState state;
readonly attribute double baseLatency;
Promise resume ();
attribute EventHandler onstatechange;
AudioBuffer createBuffer (unsigned long numberOfChannels, unsigned long length, float sampleRate);
Promise decodeAudioData (ArrayBuffer audioData, optional DecodeSuccessCallback successCallback, optional DecodeErrorCallback errorCallback);
AudioBufferSourceNode createBufferSource ();
ConstantSourceNode createConstantSource ();
ScriptProcessorNode createScriptProcessor (optional unsigned long bufferSize = 0
, optional unsigned long numberOfInputChannels = 2
, optional unsigned long numberOfOutputChannels = 2
);
AnalyserNode createAnalyser ();
GainNode createGain ();
DelayNode createDelay (optional double maxDelayTime);
BiquadFilterNode createBiquadFilter ();
IIRFilterNode createIIRFilter (sequence feedforward, sequence feedback);
WaveShaperNode createWaveShaper ();
PannerNode createPanner ();
StereoPannerNode createStereoPanner ();
ConvolverNode createConvolver ();
ChannelSplitterNode createChannelSplitter (optional unsigned long numberOfOutputs = 6
);
ChannelMergerNode createChannelMerger (optional unsigned long numberOfInputs = 6
);
DynamicsCompressorNode createDynamicsCompressor ();
OscillatorNode createOscillator ();
PeriodicWave createPeriodicWave (Float32Array real, Float32Array imag, optional PeriodicWaveConstraints constraints);
};
dictionary AudioBufferOptions {
unsigned long numberOfChannels = 1;
required unsigned long length;
float sampleRate;
};
[Constructor(BaseAudioContext context, AudioBufferOptions options)]
interface AudioBuffer {
readonly attribute float sampleRate;
readonly attribute unsigned long length;
readonly attribute double duration;
readonly attribute unsigned long numberOfChannels;
Float32Array getChannelData (unsigned long channel);
void copyFromChannel (Float32Array destination, unsigned long channelNumber, optional unsigned long startInChannel = 0
);
void copyToChannel (Float32Array source, unsigned long channelNumber, optional unsigned long startInChannel = 0
);
};