2 * Copyright (C) 2010, Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
25 #ifndef AnalyserNode_h
26 #define AnalyserNode_h
28 #include "modules/webaudio/AudioBasicInspectorNode.h"
29 #include "modules/webaudio/RealtimeAnalyser.h"
30 #include "wtf/Forward.h"
36 class AnalyserNode FINAL : public AudioBasicInspectorNode {
38 static PassRefPtrWillBeRawPtr<AnalyserNode> create(AudioContext* context, float sampleRate)
40 return adoptRefWillBeNoop(new AnalyserNode(context, sampleRate));
43 virtual ~AnalyserNode();
46 virtual void process(size_t framesToProcess) OVERRIDE;
48 // Javascript bindings
49 unsigned fftSize() const { return m_analyser.fftSize(); }
50 void setFftSize(unsigned size, ExceptionState&);
52 unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); }
54 void setMinDecibels(double k, ExceptionState&);
55 double minDecibels() const { return m_analyser.minDecibels(); }
57 void setMaxDecibels(double k, ExceptionState&);
58 double maxDecibels() const { return m_analyser.maxDecibels(); }
60 void setSmoothingTimeConstant(double k, ExceptionState&);
61 double smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); }
63 void getFloatFrequencyData(Float32Array* array) { m_analyser.getFloatFrequencyData(array); }
64 void getByteFrequencyData(Uint8Array* array) { m_analyser.getByteFrequencyData(array); }
65 void getFloatTimeDomainData(Float32Array* array) { m_analyser.getFloatTimeDomainData(array); }
66 void getByteTimeDomainData(Uint8Array* array) { m_analyser.getByteTimeDomainData(array); }
68 virtual double tailTime() const OVERRIDE { return 0; }
69 virtual double latencyTime() const OVERRIDE { return 0; }
71 AnalyserNode(AudioContext*, float sampleRate);
73 RealtimeAnalyser m_analyser;
76 } // namespace WebCore
78 #endif // AnalyserNode_h