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1 /* | 1 /* |
2 * Copyright (C) 2012, Google Inc. All rights reserved. | 2 * Copyright (C) 2012, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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35 | 35 |
36 namespace blink { | 36 namespace blink { |
37 | 37 |
38 class AbstractAudioContext; | 38 class AbstractAudioContext; |
39 | 39 |
40 class MediaStreamAudioSourceHandler final : public AudioHandler { | 40 class MediaStreamAudioSourceHandler final : public AudioHandler { |
41 public: | 41 public: |
42 static PassRefPtr<MediaStreamAudioSourceHandler> create(AudioNode&, MediaStr
eam&, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>); | 42 static PassRefPtr<MediaStreamAudioSourceHandler> create(AudioNode&, MediaStr
eam&, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>); |
43 ~MediaStreamAudioSourceHandler() override; | 43 ~MediaStreamAudioSourceHandler() override; |
44 | 44 |
45 MediaStream* mediaStream() { return m_mediaStream.get(); } | 45 MediaStream* getMediaStream() { return m_mediaStream.get(); } |
46 | 46 |
47 // AudioHandler | 47 // AudioHandler |
48 void process(size_t framesToProcess) override; | 48 void process(size_t framesToProcess) override; |
49 | 49 |
50 // A helper for AudioSourceProviderClient implementation of | 50 // A helper for AudioSourceProviderClient implementation of |
51 // MediaStreamAudioSourceNode. | 51 // MediaStreamAudioSourceNode. |
52 void setFormat(size_t numberOfChannels, float sampleRate); | 52 void setFormat(size_t numberOfChannels, float sampleRate); |
53 | 53 |
54 AudioSourceProvider* audioSourceProvider() const { return m_audioSourceProvi
der.get(); } | 54 AudioSourceProvider* getAudioSourceProvider() const { return m_audioSourcePr
ovider.get(); } |
55 | 55 |
56 private: | 56 private: |
57 MediaStreamAudioSourceHandler(AudioNode&, MediaStream&, MediaStreamTrack*, P
assOwnPtr<AudioSourceProvider>); | 57 MediaStreamAudioSourceHandler(AudioNode&, MediaStream&, MediaStreamTrack*, P
assOwnPtr<AudioSourceProvider>); |
58 // As an audio source, we will never propagate silence. | 58 // As an audio source, we will never propagate silence. |
59 bool propagatesSilence() const override { return false; } | 59 bool propagatesSilence() const override { return false; } |
60 | 60 |
61 // These Persistents don't make reference cycles including the owner | 61 // These Persistents don't make reference cycles including the owner |
62 // MediaStreamAudioSourceNode. | 62 // MediaStreamAudioSourceNode. |
63 Persistent<MediaStream> m_mediaStream; | 63 Persistent<MediaStream> m_mediaStream; |
64 Persistent<MediaStreamTrack> m_audioTrack; | 64 Persistent<MediaStreamTrack> m_audioTrack; |
65 OwnPtr<AudioSourceProvider> m_audioSourceProvider; | 65 OwnPtr<AudioSourceProvider> m_audioSourceProvider; |
66 | 66 |
67 Mutex m_processLock; | 67 Mutex m_processLock; |
68 | 68 |
69 unsigned m_sourceNumberOfChannels; | 69 unsigned m_sourceNumberOfChannels; |
70 }; | 70 }; |
71 | 71 |
72 class MediaStreamAudioSourceNode final : public AudioSourceNode, public AudioSou
rceProviderClient { | 72 class MediaStreamAudioSourceNode final : public AudioSourceNode, public AudioSou
rceProviderClient { |
73 DEFINE_WRAPPERTYPEINFO(); | 73 DEFINE_WRAPPERTYPEINFO(); |
74 USING_GARBAGE_COLLECTED_MIXIN(MediaStreamAudioSourceNode); | 74 USING_GARBAGE_COLLECTED_MIXIN(MediaStreamAudioSourceNode); |
75 public: | 75 public: |
76 static MediaStreamAudioSourceNode* create(AbstractAudioContext&, MediaStream
&, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>); | 76 static MediaStreamAudioSourceNode* create(AbstractAudioContext&, MediaStream
&, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>); |
77 DECLARE_VIRTUAL_TRACE(); | 77 DECLARE_VIRTUAL_TRACE(); |
78 MediaStreamAudioSourceHandler& mediaStreamAudioSourceHandler() const; | 78 MediaStreamAudioSourceHandler& mediaStreamAudioSourceHandler() const; |
79 | 79 |
80 MediaStream* mediaStream() const; | 80 MediaStream* getMediaStream() const; |
81 | 81 |
82 // AudioSourceProviderClient functions: | 82 // AudioSourceProviderClient functions: |
83 void setFormat(size_t numberOfChannels, float sampleRate) override; | 83 void setFormat(size_t numberOfChannels, float sampleRate) override; |
84 | 84 |
85 private: | 85 private: |
86 MediaStreamAudioSourceNode(AbstractAudioContext&, MediaStream&, MediaStreamT
rack*, PassOwnPtr<AudioSourceProvider>); | 86 MediaStreamAudioSourceNode(AbstractAudioContext&, MediaStream&, MediaStreamT
rack*, PassOwnPtr<AudioSourceProvider>); |
87 }; | 87 }; |
88 | 88 |
89 } // namespace blink | 89 } // namespace blink |
90 | 90 |
91 #endif // MediaStreamAudioSourceNode_h | 91 #endif // MediaStreamAudioSourceNode_h |
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