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/*
* Copyright (C) 2012, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MediaStreamAudioDestinationNode_h
#define MediaStreamAudioDestinationNode_h
#if ENABLE(WEB_AUDIO)
#include "modules/mediastream/MediaStream.h"
#include "modules/webaudio/AudioBasicInspectorNode.h"
#include "platform/audio/AudioBus.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
namespace blink {
class AbstractAudioContext;
class MediaStreamAudioDestinationHandler final : public AudioBasicInspectorHandler {
public:
static PassRefPtr<MediaStreamAudioDestinationHandler> create(AudioNode&, size_t numberOfChannels);
~MediaStreamAudioDestinationHandler() override;
MediaStream* stream() { return m_stream.get(); }
// AudioHandler.
void process(size_t framesToProcess) override;
private:
MediaStreamAudioDestinationHandler(AudioNode&, size_t numberOfChannels);
// As an audio source, we will never propagate silence.
bool propagatesSilence() const override { return false; }
// This Persistent doesn't make a reference cycle.
Persistent<MediaStream> m_stream;
RefPtr<MediaStreamSource> m_source;
RefPtr<AudioBus> m_mixBus;
};
class MediaStreamAudioDestinationNode final : public AudioBasicInspectorNode {
DEFINE_WRAPPERTYPEINFO();
public:
static MediaStreamAudioDestinationNode* create(AbstractAudioContext&, size_t numberOfChannels);
MediaStream* stream() const;
private:
MediaStreamAudioDestinationNode(AbstractAudioContext&, size_t numberOfChannels);
};
} // namespace blink
#endif // ENABLE(WEB_AUDIO)
#endif // MediaStreamAudioDestinationNode_h