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25 #ifndef MediaStreamAudioSourceNode_h
26 #define MediaStreamAudioSourceNode_h
30 #include "platform/audio/AudioSourceProvider.h"
31 #include "platform/audio/AudioSourceProviderClient.h"
32 #include "modules/mediastream/MediaStream.h"
33 #include "modules/webaudio/AudioSourceNode.h"
34 #include "wtf/OwnPtr.h"
35 #include "wtf/PassRefPtr.h"
36 #include "wtf/Threading.h"
42 class MediaStreamAudioSourceNode final : public AudioSourceNode, public AudioSourceProviderClient {
43 DEFINE_WRAPPERTYPEINFO();
44 USING_GARBAGE_COLLECTED_MIXIN(MediaStreamAudioSourceNode);
46 static MediaStreamAudioSourceNode* create(AudioContext*, MediaStream*, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>);
48 virtual ~MediaStreamAudioSourceNode();
50 MediaStream* mediaStream() { return m_mediaStream.get(); }
53 virtual void dispose() override;
54 virtual void process(size_t framesToProcess) override;
56 // AudioSourceProviderClient
57 virtual void setFormat(size_t numberOfChannels, float sampleRate) override;
59 AudioSourceProvider* audioSourceProvider() const { return m_audioSourceProvider.get(); }
61 virtual void trace(Visitor*) override;
64 MediaStreamAudioSourceNode(AudioContext*, MediaStream*, MediaStreamTrack*, PassOwnPtr<AudioSourceProvider>);
66 // As an audio source, we will never propagate silence.
67 virtual bool propagatesSilence() const override { return false; }
69 Member<MediaStream> m_mediaStream;
70 Member<MediaStreamTrack> m_audioTrack;
71 OwnPtr<AudioSourceProvider> m_audioSourceProvider;
75 unsigned m_sourceNumberOfChannels;
80 #endif // ENABLE(WEB_AUDIO)
82 #endif // MediaStreamAudioSourceNode_h