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Diffstat (limited to 'Source/WebCore/webaudio/RealtimeAnalyserNode.h')
-rw-r--r-- | Source/WebCore/webaudio/RealtimeAnalyserNode.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Source/WebCore/webaudio/RealtimeAnalyserNode.h b/Source/WebCore/webaudio/RealtimeAnalyserNode.h new file mode 100644 index 0000000..9f62464 --- /dev/null +++ b/Source/WebCore/webaudio/RealtimeAnalyserNode.h @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2010, Google 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. + */ + +#ifndef RealtimeAnalyserNode_h +#define RealtimeAnalyserNode_h + +#include "AudioNode.h" +#include "RealtimeAnalyser.h" + +namespace WebCore { + +class RealtimeAnalyserNode : public AudioNode { +public: + static PassRefPtr<RealtimeAnalyserNode> create(AudioContext* context, double sampleRate) + { + return adoptRef(new RealtimeAnalyserNode(context, sampleRate)); + } + + virtual ~RealtimeAnalyserNode(); + + // AudioNode + virtual void process(size_t framesToProcess); + virtual void pullInputs(size_t framesToProcess); + virtual void reset(); + + // Javascript bindings + unsigned int fftSize() const { return m_analyser.fftSize(); } + void setFftSize(unsigned int size) { m_analyser.setFftSize(size); } + + unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); } + + void setMinDecibels(float k) { m_analyser.setMinDecibels(k); } + float minDecibels() const { return m_analyser.minDecibels(); } + + void setMaxDecibels(float k) { m_analyser.setMaxDecibels(k); } + float maxDecibels() const { return m_analyser.maxDecibels(); } + + void setSmoothingTimeConstant(float k) { m_analyser.setSmoothingTimeConstant(k); } + float smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); } + +#if ENABLE(3D_CANVAS) + void getFloatFrequencyData(Float32Array* array) { m_analyser.getFloatFrequencyData(array); } + void getByteFrequencyData(Uint8Array* array) { m_analyser.getByteFrequencyData(array); } + void getByteTimeDomainData(Uint8Array* array) { m_analyser.getByteTimeDomainData(array); } +#endif + +private: + RealtimeAnalyserNode(AudioContext*, double sampleRate); + + RealtimeAnalyser m_analyser; +}; + +} // namespace WebCore + +#endif // RealtimeAnalyserNode_h |