1/*
2 * Copyright (C) 2012 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 Google Inc. 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 MediaConstraints_h
32#define MediaConstraints_h
33
34#if ENABLE(MEDIA_STREAM)
35
36#include <wtf/RefCounted.h>
37#include <wtf/text/WTFString.h>
38
39namespace WebCore {
40
41struct MediaConstraint {
42    MediaConstraint(String name, String value)
43        : m_name(name)
44        , m_value(value)
45    {
46    }
47
48    String m_name;
49    String m_value;
50};
51
52class MediaConstraints : public RefCounted<MediaConstraints> {
53public:
54    virtual ~MediaConstraints() { }
55
56    virtual void getMandatoryConstraints(Vector<MediaConstraint>&) const = 0;
57    virtual void getOptionalConstraints(Vector<MediaConstraint>&) const = 0;
58
59    virtual bool getMandatoryConstraintValue(const String& name, String& value) const = 0;
60    virtual bool getOptionalConstraintValue(const String& name, String& value) const = 0;
61
62protected:
63    MediaConstraints() { }
64};
65
66} // namespace WebCore
67
68#endif // ENABLE(MEDIA_STREAM)
69
70#endif // MediaConstraints_h
71