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MediaSourceDecoder.h (3300B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef MOZILLA_MEDIASOURCEDECODER_H_
      8 #define MOZILLA_MEDIASOURCEDECODER_H_
      9 
     10 #include "MediaDecoder.h"
     11 #include "mozilla/RefPtr.h"
     12 #include "mozilla/dom/MediaDebugInfoBinding.h"
     13 
     14 namespace mozilla {
     15 
     16 class MediaDecoderStateMachineBase;
     17 class MediaSourceDemuxer;
     18 
     19 namespace dom {
     20 
     21 class MediaSource;
     22 
     23 }  // namespace dom
     24 
     25 DDLoggedTypeDeclNameAndBase(MediaSourceDecoder, MediaDecoder);
     26 
     27 class MediaSourceDecoder : public MediaDecoder,
     28                           public DecoderDoctorLifeLogger<MediaSourceDecoder> {
     29 public:
     30  explicit MediaSourceDecoder(MediaDecoderInit& aInit);
     31 
     32  nsresult Load(nsIPrincipal* aPrincipal);
     33  media::TimeIntervals GetSeekable() override;
     34  media::TimeRanges GetSeekableTimeRanges() override;
     35  media::TimeIntervals GetBuffered() override;
     36 
     37  void Shutdown() override;
     38 
     39  void AttachMediaSource(dom::MediaSource* aMediaSource);
     40  void DetachMediaSource();
     41 
     42  void Ended(bool aEnded);
     43 
     44  // Return the duration of the video in seconds.
     45  double GetDuration() override;
     46 
     47  void SetInitialDuration(const media::TimeUnit& aDuration);
     48  void SetMediaSourceDuration(const media::TimeUnit& aDuration);
     49  void SetMediaSourceDuration(double aDuration);
     50 
     51  MediaSourceDemuxer* GetDemuxer() { return mDemuxer; }
     52 
     53  already_AddRefed<nsIPrincipal> GetCurrentPrincipal() override;
     54 
     55  bool HadCrossOriginRedirects() override;
     56 
     57  bool IsTransportSeekable() override { return true; }
     58 
     59  // Requests that the MediaSourceDecoder populates aInfo with debug
     60  // information. This may be done asynchronously, and aInfo should *not* be
     61  // accessed by the caller until the returned promise is resolved or rejected.
     62  RefPtr<GenericPromise> RequestDebugInfo(
     63      dom::MediaSourceDecoderDebugInfo& aInfo);
     64 
     65  void AddSizeOfResources(ResourceSizes* aSizes) override;
     66 
     67  MediaDecoderOwner::NextFrameStatus NextFrameBufferedStatus() override;
     68 
     69  bool IsMSE() const override { return true; }
     70 
     71  void NotifyInitDataArrived();
     72 
     73  // Called as data appended to the source buffer or EOS is called on the media
     74  // source. Main thread only.
     75  void NotifyDataArrived();
     76 
     77 private:
     78  MediaDecoderStateMachineBase* CreateStateMachine(
     79      bool aDisableExternalEngine) override;
     80 
     81  template <typename IntervalType>
     82  IntervalType GetSeekableImpl();
     83 
     84  void DoSetMediaSourceDuration(double aDuration);
     85  media::TimeInterval ClampIntervalToEnd(const media::TimeInterval& aInterval);
     86  bool CanPlayThroughImpl() override;
     87 
     88 #ifdef MOZ_WMF_MEDIA_ENGINE
     89  void MetadataLoaded(UniquePtr<MediaInfo> aInfo, UniquePtr<MetadataTags> aTags,
     90                      MediaDecoderEventVisibility aEventVisibility) override;
     91 #endif
     92 
     93  RefPtr<nsIPrincipal> mPrincipal;
     94 
     95  // The owning MediaSource holds a strong reference to this decoder, and
     96  // calls Attach/DetachMediaSource on this decoder to set and clear
     97  // mMediaSource.
     98  dom::MediaSource* mMediaSource;
     99  RefPtr<MediaSourceDemuxer> mDemuxer;
    100 
    101  bool mEnded;
    102 };
    103 
    104 }  // namespace mozilla
    105 
    106 #endif /* MOZILLA_MEDIASOURCEDECODER_H_ */