1/* 2 * Copyright 2014 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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of Ericsson nor the names of its contributors 15 * may be used to endorse or promote products derived from this 16 * software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef MediaStreamCenter_h 32#define MediaStreamCenter_h 33 34#include "platform/PlatformExport.h" 35#include "platform/heap/Handle.h" 36#include "public/platform/WebMediaStreamCenterClient.h" 37#include "public/platform/WebVector.h" 38#include "wtf/OwnPtr.h" 39#include "wtf/PassRefPtr.h" 40#include "wtf/text/WTFString.h" 41 42namespace blink { 43class WebMediaStream; 44class WebMediaStreamCenter; 45class WebMediaStreamTrack; 46} 47 48namespace blink { 49 50class AudioSourceProvider; 51class MediaStreamComponent; 52class MediaStreamDescriptor; 53class MediaStreamTrackSourcesRequest; 54 55class PLATFORM_EXPORT MediaStreamCenter FINAL : public blink::WebMediaStreamCenterClient { 56 WTF_MAKE_NONCOPYABLE(MediaStreamCenter); 57public: 58 virtual ~MediaStreamCenter(); 59 60 static MediaStreamCenter& instance(); 61 62 bool getMediaStreamTrackSources(MediaStreamTrackSourcesRequest*); 63 64 void didCreateMediaStreamTrack(MediaStreamComponent*); 65 void didSetMediaStreamTrackEnabled(MediaStreamComponent*); 66 bool didStopMediaStreamTrack(MediaStreamComponent*); 67 PassOwnPtr<AudioSourceProvider> createWebAudioSourceFromMediaStreamTrack(MediaStreamComponent*); 68 69 void didCreateMediaStream(MediaStreamDescriptor*); 70 void didCreateMediaStreamAndTracks(MediaStreamDescriptor*); 71 bool didAddMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*); 72 bool didRemoveMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*); 73 void didStopLocalMediaStream(MediaStreamDescriptor*); 74 75 // blink::WebMediaStreamCenterClient 76 virtual void stopLocalMediaStream(const blink::WebMediaStream&) OVERRIDE; 77 78private: 79 MediaStreamCenter(); 80 81 OwnPtr<blink::WebMediaStreamCenter> m_private; 82}; 83 84} // namespace blink 85 86#endif // MediaStreamCenter_h 87