1/* 2 * Copyright (C) 2013 Apple 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. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef MediaStreamAudioSource_h 27#define MediaStreamAudioSource_h 28 29#if ENABLE(MEDIA_STREAM) 30 31#include "AudioDestinationConsumer.h" 32#include "MediaStreamSource.h" 33#include <wtf/RefCounted.h> 34#include <wtf/ThreadingPrimitives.h> 35#include <wtf/Vector.h> 36#include <wtf/text/WTFString.h> 37 38namespace WebCore { 39 40class AudioBus; 41class MediaStreamSourceCapabilities; 42 43class MediaStreamAudioSource : public MediaStreamSource { 44public: 45 static RefPtr<MediaStreamAudioSource> create(); 46 47 ~MediaStreamAudioSource() { } 48 49 virtual bool useIDForTrackID() const { return true; } 50 51 virtual RefPtr<MediaStreamSourceCapabilities> capabilities() const; 52 virtual const MediaStreamSourceStates& states(); 53 54 const String& deviceId() const { return m_deviceId; } 55 void setDeviceId(const String& deviceId) { m_deviceId = deviceId; } 56 57 void setAudioFormat(size_t numberOfChannels, float sampleRate); 58 void consumeAudio(AudioBus*, size_t numberOfFrames); 59 60 void addAudioConsumer(PassRefPtr<AudioDestinationConsumer>); 61 bool removeAudioConsumer(AudioDestinationConsumer*); 62 const Vector<RefPtr<AudioDestinationConsumer>>& audioConsumers() const { return m_audioConsumers; } 63 64private: 65 MediaStreamAudioSource(); 66 67 String m_deviceId; 68 Mutex m_audioConsumersLock; 69 Vector<RefPtr<AudioDestinationConsumer>> m_audioConsumers; 70 MediaStreamSourceStates m_currentStates; 71}; 72 73} // namespace WebCore 74 75#endif // ENABLE(MEDIA_STREAM) 76 77#endif // MediaStreamAudioSource_h 78