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Side by Side Diff: media/blink/webaudiosourceprovider_impl.h

Issue 1430063003: use MEDIA_BLINK_EXPORT in media/blink (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 1 month ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_ 5 #ifndef MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_
6 #define MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_ 6 #define MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/callback.h" 10 #include "base/callback.h"
11 #include "base/memory/weak_ptr.h" 11 #include "base/memory/weak_ptr.h"
12 #include "base/synchronization/lock.h" 12 #include "base/synchronization/lock.h"
13 #include "media/base/audio_renderer_sink.h" 13 #include "media/base/audio_renderer_sink.h"
14 #include "media/base/media_export.h" 14 #include "media/blink/media_blink_export.h"
15 #include "third_party/WebKit/public/platform/WebAudioSourceProvider.h" 15 #include "third_party/WebKit/public/platform/WebAudioSourceProvider.h"
16 #include "third_party/WebKit/public/platform/WebVector.h" 16 #include "third_party/WebKit/public/platform/WebVector.h"
17 17
18 namespace blink { 18 namespace blink {
19 class WebAudioSourceProviderClient; 19 class WebAudioSourceProviderClient;
20 } 20 }
21 21
22 namespace media { 22 namespace media {
23 23
24 // WebAudioSourceProviderImpl provides a bridge between classes: 24 // WebAudioSourceProviderImpl provides a bridge between classes:
25 // blink::WebAudioSourceProvider <---> AudioRendererSink 25 // blink::WebAudioSourceProvider <---> AudioRendererSink
26 // 26 //
27 // WebAudioSourceProviderImpl wraps an existing audio sink that is used unless 27 // WebAudioSourceProviderImpl wraps an existing audio sink that is used unless
28 // WebKit has set a client via setClient(). While a client is set WebKit will 28 // WebKit has set a client via setClient(). While a client is set WebKit will
29 // periodically call provideInput() to render a certain number of audio 29 // periodically call provideInput() to render a certain number of audio
30 // sample-frames using the sink's RenderCallback to get the data. 30 // sample-frames using the sink's RenderCallback to get the data.
31 // 31 //
32 // All calls are protected by a lock. 32 // All calls are protected by a lock.
33 class MEDIA_EXPORT WebAudioSourceProviderImpl 33 class MEDIA_BLINK_EXPORT WebAudioSourceProviderImpl
34 : NON_EXPORTED_BASE(public blink::WebAudioSourceProvider), 34 : NON_EXPORTED_BASE(public blink::WebAudioSourceProvider),
35 NON_EXPORTED_BASE(public AudioRendererSink) { 35 NON_EXPORTED_BASE(public AudioRendererSink) {
36 public: 36 public:
37 explicit WebAudioSourceProviderImpl( 37 explicit WebAudioSourceProviderImpl(
38 const scoped_refptr<AudioRendererSink>& sink); 38 const scoped_refptr<AudioRendererSink>& sink);
39 39
40 // blink::WebAudioSourceProvider implementation. 40 // blink::WebAudioSourceProvider implementation.
41 void setClient(blink::WebAudioSourceProviderClient* client) override; 41 void setClient(blink::WebAudioSourceProviderClient* client) override;
42 void provideInput(const blink::WebVector<float*>& audio_data, 42 void provideInput(const blink::WebVector<float*>& audio_data,
43 size_t number_of_frames) override; 43 size_t number_of_frames) override;
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after
84 84
85 // NOTE: Weak pointers must be invalidated before all other member variables. 85 // NOTE: Weak pointers must be invalidated before all other member variables.
86 base::WeakPtrFactory<WebAudioSourceProviderImpl> weak_factory_; 86 base::WeakPtrFactory<WebAudioSourceProviderImpl> weak_factory_;
87 87
88 DISALLOW_IMPLICIT_CONSTRUCTORS(WebAudioSourceProviderImpl); 88 DISALLOW_IMPLICIT_CONSTRUCTORS(WebAudioSourceProviderImpl);
89 }; 89 };
90 90
91 } // namespace media 91 } // namespace media
92 92
93 #endif // MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_ 93 #endif // MEDIA_BLINK_WEBAUDIOSOURCEPROVIDER_IMPL_H_
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