2 * Copyright (C) 2011 Ericsson AB. All rights reserved.
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34 #include "platform/mediastream/MediaStreamComponent.h"
36 #include "platform/UUID.h"
37 #include "platform/audio/AudioBus.h"
38 #include "platform/mediastream/MediaStreamSource.h"
39 #include "public/platform/WebAudioSourceProvider.h"
43 PassRefPtr<MediaStreamComponent> MediaStreamComponent::create(PassRefPtr<MediaStreamSource> source)
45 return adoptRef(new MediaStreamComponent(createCanonicalUUIDString(), source));
48 PassRefPtr<MediaStreamComponent> MediaStreamComponent::create(const String& id, PassRefPtr<MediaStreamSource> source)
50 return adoptRef(new MediaStreamComponent(id, source));
53 MediaStreamComponent::MediaStreamComponent(const String& id, PassRefPtr<MediaStreamSource> source)
59 ASSERT(m_id.length());
63 void MediaStreamComponent::AudioSourceProviderImpl::wrap(blink::WebAudioSourceProvider* provider)
65 MutexLocker locker(m_provideInputLock);
66 m_webAudioSourceProvider = provider;
69 void MediaStreamComponent::AudioSourceProviderImpl::provideInput(AudioBus* bus, size_t framesToProcess)
75 MutexTryLocker tryLocker(m_provideInputLock);
76 if (!tryLocker.locked() || !m_webAudioSourceProvider) {
81 // Wrap the AudioBus channel data using WebVector.
82 size_t n = bus->numberOfChannels();
83 blink::WebVector<float*> webAudioData(n);
84 for (size_t i = 0; i < n; ++i)
85 webAudioData[i] = bus->channel(i)->mutableData();
87 m_webAudioSourceProvider->provideInput(webAudioData, framesToProcess);
89 #endif // #if ENABLE(WEB_AUDIO)