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