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cf0ff88211
The VideoSink shares the AudioSink's own EndedPromise to notify its user that it has ended. As such, the MozPromise used must be non-exclusive. Using the GenericPromise for such purpose only hid that requirement. We also remove the MediaSink from the media namespace, and clarify the naming of some arguments and class members to accurately describe what they do. Differential Revision: https://phabricator.services.mozilla.com/D14024 --HG-- extra : moz-landing-system : lando
115 lines
3.2 KiB
C++
115 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#ifndef AudioSinkWrapper_h_
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#define AudioSinkWrapper_h_
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#include "mozilla/AbstractThread.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/TimeStamp.h"
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#include "mozilla/UniquePtr.h"
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#include "MediaSink.h"
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namespace mozilla {
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class AudioSink;
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class MediaData;
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template <class T>
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class MediaQueue;
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/**
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* A wrapper around AudioSink to provide the interface of MediaSink.
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*/
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class AudioSinkWrapper : public MediaSink {
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// An AudioSink factory.
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class Creator {
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public:
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virtual ~Creator() {}
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virtual AudioSink* Create() = 0;
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};
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// Wrap around a function object which creates AudioSinks.
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template <typename Function>
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class CreatorImpl : public Creator {
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public:
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explicit CreatorImpl(const Function& aFunc) : mFunction(aFunc) {}
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AudioSink* Create() override { return mFunction(); }
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private:
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Function mFunction;
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};
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public:
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template <typename Function>
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AudioSinkWrapper(AbstractThread* aOwnerThread,
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const MediaQueue<AudioData>& aAudioQueue,
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const Function& aFunc)
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: mOwnerThread(aOwnerThread),
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mCreator(new CreatorImpl<Function>(aFunc)),
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mIsStarted(false),
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// Give an invalid value to facilitate debug if used before playback
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// starts.
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mPlayDuration(media::TimeUnit::Invalid()),
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mAudioEnded(true),
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mAudioQueue(aAudioQueue) {}
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const PlaybackParams& GetPlaybackParams() const override;
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void SetPlaybackParams(const PlaybackParams& aParams) override;
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RefPtr<EndedPromise> OnEnded(TrackType aType) override;
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media::TimeUnit GetEndTime(TrackType aType) const override;
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media::TimeUnit GetPosition(TimeStamp* aTimeStamp = nullptr) const override;
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bool HasUnplayedFrames(TrackType aType) const override;
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void SetVolume(double aVolume) override;
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void SetPlaybackRate(double aPlaybackRate) override;
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void SetPreservesPitch(bool aPreservesPitch) override;
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void SetPlaying(bool aPlaying) override;
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nsresult Start(const media::TimeUnit& aStartTime,
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const MediaInfo& aInfo) override;
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void Stop() override;
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bool IsStarted() const override;
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bool IsPlaying() const override;
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void Shutdown() override;
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nsCString GetDebugInfo() override;
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private:
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virtual ~AudioSinkWrapper();
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void AssertOwnerThread() const {
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MOZ_ASSERT(mOwnerThread->IsCurrentThreadIn());
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}
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TimeUnit GetVideoPosition(TimeStamp aNow) const;
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void OnAudioEnded();
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bool IsAudioSourceEnded(const MediaInfo& aInfo) const;
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const RefPtr<AbstractThread> mOwnerThread;
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UniquePtr<Creator> mCreator;
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UniquePtr<AudioSink> mAudioSink;
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// Will only exist when media has an audio track.
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RefPtr<EndedPromise> mEndedPromise;
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bool mIsStarted;
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PlaybackParams mParams;
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TimeStamp mPlayStartTime;
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TimeUnit mPlayDuration;
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bool mAudioEnded;
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MozPromiseRequestHolder<EndedPromise> mAudioSinkEndedPromise;
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const MediaQueue<AudioData>& mAudioQueue;
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};
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} // namespace mozilla
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#endif // AudioSinkWrapper_h_
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