зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.5 KiB
C++
47 строки
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_AUDIONODEEXTERNALINPUTTRACK_H_
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#define MOZILLA_AUDIONODEEXTERNALINPUTTRACK_H_
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#include "MediaTrackGraph.h"
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#include "AudioNodeTrack.h"
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#include "mozilla/Atomics.h"
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namespace mozilla {
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class AbstractThread;
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/**
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* This is a MediaTrack implementation that acts for a Web Audio node but
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* unlike other AudioNodeTracks, supports any kind of MediaTrack as an
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* input --- handling any number of audio tracks and handling blocking of
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* the input MediaTrack.
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*/
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class AudioNodeExternalInputTrack final : public AudioNodeTrack {
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public:
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static already_AddRefed<AudioNodeExternalInputTrack> Create(
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MediaTrackGraph* aGraph, AudioNodeEngine* aEngine);
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protected:
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AudioNodeExternalInputTrack(AudioNodeEngine* aEngine, TrackRate aSampleRate);
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~AudioNodeExternalInputTrack();
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public:
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void ProcessInput(GraphTime aFrom, GraphTime aTo, uint32_t aFlags) override;
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private:
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/**
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* Determines if this is enabled or not. Disabled nodes produce silence.
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* This node becomes disabled if the document principal does not subsume the
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* DOMMediaStream principal.
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*/
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bool IsEnabled();
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};
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} // namespace mozilla
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#endif /* MOZILLA_AUDIONODEEXTERNALINPUTTRACK_H_ */
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