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https://github.com/classilla/tenfourfox.git
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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#if !defined(AudioSink_h__)
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#define AudioSink_h__
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#include "mozilla/MozPromise.h"
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#include "mozilla/RefPtr.h"
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#include "nsISupportsImpl.h"
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namespace mozilla {
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class MediaData;
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template <class T> class MediaQueue;
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namespace media {
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/*
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* Define basic APIs for derived class instance to operate or obtain
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* information from it.
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*/
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class AudioSink {
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AudioSink)
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AudioSink(MediaQueue<MediaData>& aAudioQueue)
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: mAudioQueue(aAudioQueue)
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{}
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// Return a promise which will be resolved when AudioSink finishes playing,
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// or rejected if any error.
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virtual RefPtr<GenericPromise> Init() = 0;
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virtual int64_t GetEndTime() const = 0;
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virtual int64_t GetPosition() = 0;
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// Check whether we've pushed more frames to the audio
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// hardware than it has played.
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virtual bool HasUnplayedFrames() = 0;
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// Shut down the AudioSink's resources.
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virtual void Shutdown() = 0;
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// Change audio playback setting.
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virtual void SetVolume(double aVolume) = 0;
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virtual void SetPlaybackRate(double aPlaybackRate) = 0;
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virtual void SetPreservesPitch(bool aPreservesPitch) = 0;
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// Change audio playback status pause/resume.
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virtual void SetPlaying(bool aPlaying) = 0;
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protected:
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virtual ~AudioSink() {}
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virtual MediaQueue<MediaData>& AudioQueue() const {
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return mAudioQueue;
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}
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// To queue audio data (no matter it's plain or encoded or encrypted, depends
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// on the subclass)
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MediaQueue<MediaData>& mAudioQueue;
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};
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} // namespace media
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} // namespace mozilla
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#endif
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