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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 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 AN
Y | 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 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 O
N | 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 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 | 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. | 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 */ | 23 */ |
24 | 24 |
25 [ | 25 [ |
26 Conditional=WEB_AUDIO, | 26 Conditional=WEB_AUDIO, |
27 TypeChecking=Unrestricted, | |
28 ] interface AnalyserNode : AudioNode { | 27 ] interface AnalyserNode : AudioNode { |
29 [RaisesException=Setter] attribute unsigned long fftSize; | 28 [RaisesException=Setter] attribute unsigned long fftSize; |
30 readonly attribute unsigned long frequencyBinCount; | 29 readonly attribute unsigned long frequencyBinCount; |
31 | 30 |
32 // minDecibels / maxDecibels represent the range to scale the FFT analysis d
ata for conversion to unsigned byte values. | 31 // minDecibels / maxDecibels represent the range to scale the FFT analysis d
ata for conversion to unsigned byte values. |
33 [RaisesException=Setter] attribute double minDecibels; | 32 [RaisesException=Setter] attribute double minDecibels; |
34 [RaisesException=Setter] attribute double maxDecibels; | 33 [RaisesException=Setter] attribute double maxDecibels; |
35 | 34 |
36 // A value from 0.0 -> 1.0 where 0.0 represents no time averaging with the l
ast analysis frame. | 35 // A value from 0.0 -> 1.0 where 0.0 represents no time averaging with the l
ast analysis frame. |
37 [RaisesException=Setter] attribute double smoothingTimeConstant; | 36 [RaisesException=Setter] attribute double smoothingTimeConstant; |
38 | 37 |
39 // Copies the current frequency data into the passed array. | 38 // Copies the current frequency data into the passed array. |
40 // If the array has fewer elements than the frequencyBinCount, the excess el
ements will be dropped. | 39 // If the array has fewer elements than the frequencyBinCount, the excess el
ements will be dropped. |
41 void getFloatFrequencyData(Float32Array array); | 40 void getFloatFrequencyData(Float32Array array); |
42 void getByteFrequencyData(Uint8Array array); | 41 void getByteFrequencyData(Uint8Array array); |
43 | 42 |
44 // Real-time waveform data | 43 // Real-time waveform data |
45 void getFloatTimeDomainData(Float32Array array); | 44 void getFloatTimeDomainData(Float32Array array); |
46 void getByteTimeDomainData(Uint8Array array); | 45 void getByteTimeDomainData(Uint8Array array); |
47 }; | 46 }; |
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