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