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1/*
2 * Copyright (C) 2010, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25module webaudio {
26    interface [
27        Conditional=WEB_AUDIO,
28        CanBeConstructed,
29        CustomConstructFunction,
30        V8CustomConstructor,
31#if defined(V8_BINDING) && V8_BINDING
32        EventTarget
33#endif
34    ] AudioContext {
35        // All rendered audio ultimately connects to destination, which represents the audio hardware.
36        readonly attribute AudioDestinationNode destination;
37
38        // All scheduled times are relative to this time in seconds.
39        readonly attribute float currentTime;
40
41        // All AudioNodes in the context run at this sample-rate (in sample-frames per second).
42        readonly attribute float sampleRate;
43
44        // All panning is relative to this listener.
45        readonly attribute AudioListener listener;
46
47        // AudioBuffer createBuffer(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
48        // AudioBuffer createBuffer(in ArrayBuffer buffer, in boolean mixToMono);
49        [Custom] AudioBuffer createBuffer()
50            raises(DOMException);
51
52        // Source
53        AudioBufferSourceNode createBufferSource();
54
55        // Processing nodes
56        AudioGainNode createGainNode();
57        DelayNode createDelayNode();
58        LowPass2FilterNode createLowPass2Filter();
59        HighPass2FilterNode createHighPass2Filter();
60        AudioPannerNode createPanner();
61        ConvolverNode createConvolver();
62        RealtimeAnalyserNode createAnalyser();
63        JavaScriptAudioNode createJavaScriptNode(in unsigned long bufferSize);
64
65        // Channel splitting and merging
66        AudioChannelSplitter createChannelSplitter();
67        AudioChannelMerger createChannelMerger();
68
69        // Offline rendering
70        // void prepareOfflineBufferRendering(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
71        attribute EventListener oncomplete;
72        void startRendering();
73
74    };
75}
76