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 AVMediaCaptureSource_h 27#define AVMediaCaptureSource_h 28 29#if ENABLE(MEDIA_STREAM) && USE(AVFOUNDATION) 30 31#include "MediaStreamSource.h" 32#include <wtf/RetainPtr.h> 33 34OBJC_CLASS AVCaptureAudioDataOutput; 35OBJC_CLASS AVCaptureConnection; 36OBJC_CLASS AVCaptureDevice; 37OBJC_CLASS AVCaptureOutput; 38OBJC_CLASS AVCaptureSession; 39OBJC_CLASS AVCaptureVideoDataOutput; 40OBJC_CLASS WebCoreAVMediaCaptureSourceObserver; 41 42typedef struct opaqueCMSampleBuffer *CMSampleBufferRef; 43 44namespace WebCore { 45 46class AVMediaCaptureSource : public MediaStreamSource { 47public: 48 virtual ~AVMediaCaptureSource(); 49 50 virtual void captureOutputDidOutputSampleBufferFromConnection(AVCaptureOutput*, CMSampleBufferRef, AVCaptureConnection*) = 0; 51 52 virtual void captureSessionStoppedRunning(); 53 54protected: 55 AVMediaCaptureSource(AVCaptureDevice*, const AtomicString&, MediaStreamSource::Type, PassRefPtr<MediaConstraints>); 56 57 virtual const MediaStreamSourceStates& states() override; 58 59 virtual void startProducingData() override; 60 virtual void stopProducingData() override; 61 62 virtual void setupCaptureSession() = 0; 63 virtual void updateStates() = 0; 64 65 AVCaptureSession *session() const { return m_session.get(); } 66 AVCaptureDevice *device() const { return m_device.get(); } 67 MediaStreamSourceStates* currentStates() { return &m_currentStates; } 68 MediaConstraints* constraints() { return m_constraints.get(); } 69 70 void setVideoSampleBufferDelegate(AVCaptureVideoDataOutput*); 71 void setAudioSampleBufferDelegate(AVCaptureAudioDataOutput*); 72 73private: 74 void setupSession(); 75 76 RetainPtr<WebCoreAVMediaCaptureSourceObserver> m_objcObserver; 77 RefPtr<MediaConstraints> m_constraints; 78 MediaStreamSourceStates m_currentStates; 79 RetainPtr<AVCaptureSession> m_session; 80 RetainPtr<AVCaptureDevice> m_device; 81 82 bool m_isRunning; 83}; 84 85} // namespace WebCore 86 87#endif // ENABLE(MEDIA_STREAM) 88 89#endif // AVMediaCaptureSource_h 90