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 MediaStreamWebAudioSource_h
32#define MediaStreamWebAudioSource_h
33
34#include "platform/audio/AudioSourceProvider.h"
35#include "wtf/Noncopyable.h"
36#include "wtf/OwnPtr.h"
37#include "wtf/PassOwnPtr.h"
38#include "wtf/ThreadingPrimitives.h"
39
40namespace blink {
41
42class WebAudioSourceProvider;
43
44class MediaStreamWebAudioSource : public AudioSourceProvider {
45    WTF_MAKE_NONCOPYABLE(MediaStreamWebAudioSource);
46public:
47    static PassOwnPtr<MediaStreamWebAudioSource> create(PassOwnPtr<WebAudioSourceProvider> provider) { return adoptPtr(new MediaStreamWebAudioSource(provider)); }
48
49    virtual ~MediaStreamWebAudioSource();
50
51private:
52    explicit MediaStreamWebAudioSource(PassOwnPtr<WebAudioSourceProvider>);
53
54    // blink::AudioSourceProvider implementation.
55    virtual void provideInput(blink::AudioBus*, size_t framesToProcess) OVERRIDE;
56
57    OwnPtr<WebAudioSourceProvider> m_webAudioSourceProvider;
58};
59
60} // namespace blink
61
62#endif // MediaStreamWebAudioSource_h
63