1/* 2 * Copyright (C) 2011 Ericsson AB. All rights reserved. 3 * Copyright (C) 2012 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * 3. Neither the name of Ericsson nor the names of its contributors 16 * may be used to endorse or promote products derived from this 17 * software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef MediaStreamCenter_h 33#define MediaStreamCenter_h 34 35#if ENABLE(MEDIA_STREAM) 36 37#include "MediaStreamSource.h" 38#include <wtf/PassRefPtr.h> 39#include <wtf/text/WTFString.h> 40 41namespace WebCore { 42 43class MediaConstraints; 44class MediaStreamCreationClient; 45class MediaStreamSourceStates; 46class MediaStreamTrackSourcesRequestClient; 47 48class MediaStreamCenter { 49public: 50 virtual ~MediaStreamCenter(); 51 52 static MediaStreamCenter& shared(); 53 static void setSharedStreamCenter(MediaStreamCenter*); 54 55 virtual void validateRequestConstraints(PassRefPtr<MediaStreamCreationClient>, PassRefPtr<MediaConstraints> audioConstraints, PassRefPtr<MediaConstraints> videoConstraints) = 0; 56 57 virtual void createMediaStream(PassRefPtr<MediaStreamCreationClient>, PassRefPtr<MediaConstraints> audioConstraints, PassRefPtr<MediaConstraints> videoConstraints) = 0; 58 59 virtual bool getMediaStreamTrackSources(PassRefPtr<MediaStreamTrackSourcesRequestClient>) = 0; 60 61protected: 62 MediaStreamCenter(); 63 64 static MediaStreamCenter& platformCenter(); 65}; 66 67} // namespace WebCore 68 69#endif // ENABLE(MEDIA_STREAM) 70 71#endif // MediaStreamCenter_h 72