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Side by Side Diff: media/filters/audio_renderer_impl.h

Issue 42635: Lots of files touched for a very simple change. Everywhere we used a const M... (Closed) Base URL: http://src.chromium.org/svn/trunk/src/
Patch Set: '' Created 11 years, 9 months ago
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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2009 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_FILTERS_AUDIO_RENDERER_IMPL_H_ 5 #ifndef MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_
6 #define MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_ 6 #define MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_
7 7
8 // This is the default implementation of AudioRenderer, which uses the audio 8 // This is the default implementation of AudioRenderer, which uses the audio
9 // interfaces to open an audio device. Although it cannot be used in the 9 // interfaces to open an audio device. Although it cannot be used in the
10 // sandbox, it serves as a reference implementation and can be used in other 10 // sandbox, it serves as a reference implementation and can be used in other
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22 namespace media { 22 namespace media {
23 23
24 class AudioRendererImpl : public AudioRendererBase, 24 class AudioRendererImpl : public AudioRendererBase,
25 public AudioOutputStream::AudioSourceCallback { 25 public AudioOutputStream::AudioSourceCallback {
26 public: 26 public:
27 // FilterFactory provider. 27 // FilterFactory provider.
28 static FilterFactory* CreateFilterFactory() { 28 static FilterFactory* CreateFilterFactory() {
29 return new FilterFactoryImpl0<AudioRendererImpl>(); 29 return new FilterFactoryImpl0<AudioRendererImpl>();
30 } 30 }
31 31
32 static bool IsMediaFormatSupported(const MediaFormat* media_format); 32 static bool IsMediaFormatSupported(const MediaFormat& media_format);
33 33
34 // MediaFilter implementation. 34 // MediaFilter implementation.
35 virtual void SetPlaybackRate(float playback_rate); 35 virtual void SetPlaybackRate(float playback_rate);
36 36
37 // AudioRenderer implementation. 37 // AudioRenderer implementation.
38 virtual void SetVolume(float volume); 38 virtual void SetVolume(float volume);
39 39
40 // AudioSourceCallback implementation. 40 // AudioSourceCallback implementation.
41 virtual size_t OnMoreData(AudioOutputStream* stream, void* dest, size_t len); 41 virtual size_t OnMoreData(AudioOutputStream* stream, void* dest, size_t len);
42 virtual void OnClose(AudioOutputStream* stream); 42 virtual void OnClose(AudioOutputStream* stream);
43 virtual void OnError(AudioOutputStream* stream, int code); 43 virtual void OnError(AudioOutputStream* stream, int code);
44 44
45 protected: 45 protected:
46 // Only allow a factory to create this class. 46 // Only allow a factory to create this class.
47 friend class FilterFactoryImpl0<AudioRendererImpl>; 47 friend class FilterFactoryImpl0<AudioRendererImpl>;
48 AudioRendererImpl(); 48 AudioRendererImpl();
49 virtual ~AudioRendererImpl(); 49 virtual ~AudioRendererImpl();
50 50
51 // AudioRendererBase implementation. 51 // AudioRendererBase implementation.
52 virtual bool OnInitialize(const MediaFormat* media_format); 52 virtual bool OnInitialize(const MediaFormat& media_format);
53 virtual void OnStop(); 53 virtual void OnStop();
54 54
55 private: 55 private:
56 // Audio output stream device. 56 // Audio output stream device.
57 AudioOutputStream* stream_; 57 AudioOutputStream* stream_;
58 58
59 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl); 59 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl);
60 }; 60 };
61 61
62 } // namespace media 62 } // namespace media
63 63
64 #endif // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_ 64 #endif // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_
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