| /* |
| * 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 "platform/audio/AudioBus.h" |
| #include "modules/mediastream/MediaStream.h" |
| #include "modules/webaudio/AudioBasicInspectorNode.h" |
| #include "wtf/OwnPtr.h" |
| #include "wtf/PassRefPtr.h" |
| |
| namespace blink { |
| |
| class AudioContext; |
| |
| class MediaStreamAudioDestinationNode FINAL : public AudioBasicInspectorNode { |
| public: |
| static PassRefPtrWillBeRawPtr<MediaStreamAudioDestinationNode> create(AudioContext*, size_t numberOfChannels); |
| virtual ~MediaStreamAudioDestinationNode(); |
| virtual void trace(Visitor*) OVERRIDE; |
| |
| MediaStream* stream() { return m_stream.get(); } |
| |
| // AudioNode. |
| virtual void dispose() OVERRIDE; |
| virtual void process(size_t framesToProcess) OVERRIDE; |
| |
| private: |
| MediaStreamAudioDestinationNode(AudioContext*, size_t numberOfChannels); |
| |
| virtual double tailTime() const OVERRIDE { return 0; } |
| virtual double latencyTime() const OVERRIDE { return 0; } |
| |
| // As an audio source, we will never propagate silence. |
| virtual bool propagatesSilence() const OVERRIDE { return false; } |
| |
| PersistentWillBeMember<MediaStream> m_stream; |
| RefPtr<MediaStreamSource> m_source; |
| RefPtr<AudioBus> m_mixBus; |
| }; |
| |
| } // namespace blink |
| |
| #endif // ENABLE(WEB_AUDIO) |
| |
| #endif // MediaStreamAudioDestinationNode_h |