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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.
*/
#pragma once
#if ENABLE(WEB_AUDIO) && ENABLE(MEDIA_STREAM)
#include "AudioBasicInspectorNode.h"
#include "AudioBus.h"
#include "AudioNodeOptions.h"
#include "MediaStream.h"
namespace WebCore {
class BaseAudioContext;
class MediaStreamAudioSource;
class MediaStreamAudioDestinationNode final : public AudioBasicInspectorNode {
WTF_MAKE_ISO_ALLOCATED(MediaStreamAudioDestinationNode);
public:
static ExceptionOr<Ref<MediaStreamAudioDestinationNode>> create(BaseAudioContext&, const AudioNodeOptions& = { });
virtual ~MediaStreamAudioDestinationNode();
MediaStream& stream() { return m_stream.get(); }
// AudioNode.
void process(size_t framesToProcess) final;
private:
explicit MediaStreamAudioDestinationNode(BaseAudioContext&);
double tailTime() const final { return 0; }
double latencyTime() const final { return 0; }
bool requiresTailProcessing() const final { return false; }
// As an audio source, we will never propagate silence.
bool propagatesSilence() const final { return false; }
Ref<MediaStreamAudioSource> m_source;
Ref<MediaStream> m_stream;
};
} // namespace WebCore
#endif // ENABLE(WEB_AUDIO) && ENABLE(MEDIA_STREAM)
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