| /* |
| * Copyright (C) 2012, Intel Corporation. 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 AudioBasicInspectorNode_h |
| #define AudioBasicInspectorNode_h |
| |
| #include "modules/webaudio/AudioNode.h" |
| |
| namespace blink { |
| |
| class ExceptionState; |
| |
| // AudioBasicInspectorNode is an AudioNode with one input and one output where the output might not necessarily connect to another node's input. |
| // If the output is not connected to any other node, then the AudioBasicInspectorNode's processIfNecessary() function will be called automatically by |
| // AudioContext before the end of each render quantum so that it can inspect the audio stream. |
| class AudioBasicInspectorNode : public AudioNode { |
| public: |
| AudioBasicInspectorNode(AudioContext*, float sampleRate, unsigned outputChannelCount); |
| |
| // AudioNode |
| virtual void pullInputs(size_t framesToProcess) override final; |
| virtual void connect(AudioNode*, unsigned outputIndex, unsigned inputIndex, ExceptionState&) override final; |
| virtual void disconnect(unsigned outputIndex, ExceptionState&) override final; |
| virtual void checkNumberOfChannelsForInput(AudioNodeInput*) override final; |
| |
| private: |
| void updatePullStatus(); |
| bool m_needAutomaticPull; // When setting to true, AudioBasicInspectorNode will be pulled automaticlly by AudioContext before the end of each render quantum. |
| }; |
| |
| } // namespace blink |
| |
| #endif // AudioBasicInspectorNode_h |