1 /* 2 * Copyright (C) 2011, 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 25 #ifndef DefaultAudioDestinationNode_h 26 #define DefaultAudioDestinationNode_h 27 28 #include "platform/audio/AudioDestination.h" 29 #include "modules/webaudio/AudioDestinationNode.h" 30 #include "wtf/OwnPtr.h" 31 32 namespace WebCore { 33 34 class AudioContext; 35 class ExceptionState; 36 37 class DefaultAudioDestinationNode : public AudioDestinationNode { 38 public: 39 static PassRefPtr<DefaultAudioDestinationNode> create(AudioContext* context) 40 { 41 return adoptRef(new DefaultAudioDestinationNode(context)); 42 } 43 44 virtual ~DefaultAudioDestinationNode(); 45 46 // AudioNode 47 virtual void initialize() OVERRIDE; 48 virtual void uninitialize() OVERRIDE; 49 virtual void setChannelCount(unsigned long, ExceptionState&) OVERRIDE; 50 51 // AudioDestinationNode 52 virtual void enableInput(const String& inputDeviceId) OVERRIDE; 53 virtual void startRendering() OVERRIDE; 54 virtual unsigned long maxChannelCount() const OVERRIDE; 55 56 private: 57 explicit DefaultAudioDestinationNode(AudioContext*); 58 void createDestination(); 59 60 OwnPtr<AudioDestination> m_destination; 61 String m_inputDeviceId; 62 unsigned m_numberOfInputChannels; 63 }; 64 65 } // namespace WebCore 66 67 #endif // DefaultAudioDestinationNode_h 68
