MediaSourceDecoder.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_MEDIASOURCEDECODER_H_

#define MOZILLA_MEDIASOURCEDECODER_H_

#include "MediaDecoder.h"

#include "mozilla/RefPtr.h"

#include "mozilla/dom/MediaDebugInfoBinding.h"

namespace mozilla {

class MediaDecoderStateMachineBase;

class MediaSourceDemuxer;

namespace dom {

class MediaSource;

}  // namespace dom

DDLoggedTypeDeclNameAndBase(MediaSourceDecoder, MediaDecoder);

class MediaSourceDecoder : public MediaDecoder,

                           public DecoderDoctorLifeLogger<MediaSourceDecoder> {

 public:

  explicit MediaSourceDecoder(MediaDecoderInit& aInit);

  nsresult Load(nsIPrincipal* aPrincipal);

  media::TimeIntervals GetSeekable() override;

  media::TimeRanges GetSeekableTimeRanges() override;

  media::TimeIntervals GetBuffered() override;

  void Shutdown() override;

  void AttachMediaSource(dom::MediaSource* aMediaSource);

  void DetachMediaSource();

  void Ended(bool aEnded);

  // Return the duration of the video in seconds.

  double GetDuration() override;

  void SetInitialDuration(const media::TimeUnit& aDuration);

  void SetMediaSourceDuration(const media::TimeUnit& aDuration);

  void SetMediaSourceDuration(double aDuration);

  MediaSourceDemuxer* GetDemuxer() { return mDemuxer; }

  already_AddRefed<nsIPrincipal> GetCurrentPrincipal() override;

  bool HadCrossOriginRedirects() override;

  bool IsTransportSeekable() override { return true; }

  // Requests that the MediaSourceDecoder populates aInfo with debug

  // information. This may be done asynchronously, and aInfo should *not* be

  // accessed by the caller until the returned promise is resolved or rejected.

  RefPtr<GenericPromise> RequestDebugInfo(

      dom::MediaSourceDecoderDebugInfo& aInfo);

  void AddSizeOfResources(ResourceSizes* aSizes) override;

  MediaDecoderOwner::NextFrameStatus NextFrameBufferedStatus() override;

  bool IsMSE() const override { return true; }

  void NotifyInitDataArrived();

  // Called as data appended to the source buffer or EOS is called on the media

  // source. Main thread only.

  void NotifyDataArrived();

 private:

  MediaDecoderStateMachineBase* CreateStateMachine(

      bool aDisableExternalEngine) override;

  template <typename IntervalType>

  IntervalType GetSeekableImpl();

  void DoSetMediaSourceDuration(double aDuration);

  media::TimeInterval ClampIntervalToEnd(const media::TimeInterval& aInterval);

  bool CanPlayThroughImpl() override;

#ifdef MOZ_WMF_MEDIA_ENGINE

  void MetadataLoaded(UniquePtr<MediaInfo> aInfo, UniquePtr<MetadataTags> aTags,

                      MediaDecoderEventVisibility aEventVisibility) override;

#endif

  RefPtr<nsIPrincipal> mPrincipal;

  // The owning MediaSource holds a strong reference to this decoder, and

  // calls Attach/DetachMediaSource on this decoder to set and clear

  // mMediaSource.

  dom::MediaSource* mMediaSource;

  RefPtr<MediaSourceDemuxer> mDemuxer;

  bool mEnded;

};

}  // namespace mozilla

#endif /* MOZILLA_MEDIASOURCEDECODER_H_ */