michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_SourceBuffer_h_
michael@0: #define mozilla_dom_SourceBuffer_h_
michael@0: 
michael@0: #include "MediaDecoderReader.h"
michael@0: #include "MediaSource.h"
michael@0: #include "js/RootingAPI.h"
michael@0: #include "mozilla/Assertions.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "mozilla/dom/SourceBufferBinding.h"
michael@0: #include "mozilla/dom/TypedArray.h"
michael@0: #include "mozilla/DOMEventTargetHelper.h"
michael@0: #include "mozilla/mozalloc.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsCycleCollectionNoteChild.h"
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: #include "nsISupports.h"
michael@0: #include "nsStringGlue.h"
michael@0: #include "nscore.h"
michael@0: 
michael@0: class JSObject;
michael@0: struct JSContext;
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class ContainerParser;
michael@0: class ErrorResult;
michael@0: class SourceBufferResource;
michael@0: class SubBufferDecoder;
michael@0: template <typename T> class AsyncEventRunner;
michael@0: 
michael@0: namespace dom {
michael@0: 
michael@0: class TimeRanges;
michael@0: 
michael@0: class SourceBuffer MOZ_FINAL : public DOMEventTargetHelper
michael@0: {
michael@0: public:
michael@0:   /** WebIDL Methods. */
michael@0:   SourceBufferAppendMode Mode() const
michael@0:   {
michael@0:     return mAppendMode;
michael@0:   }
michael@0: 
michael@0:   void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv);
michael@0: 
michael@0:   bool Updating() const
michael@0:   {
michael@0:     return mUpdating;
michael@0:   }
michael@0: 
michael@0:   already_AddRefed<TimeRanges> GetBuffered(ErrorResult& aRv);
michael@0: 
michael@0:   double TimestampOffset() const
michael@0:   {
michael@0:     return mTimestampOffset;
michael@0:   }
michael@0: 
michael@0:   void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv);
michael@0: 
michael@0:   double AppendWindowStart() const
michael@0:   {
michael@0:     return mAppendWindowStart;
michael@0:   }
michael@0: 
michael@0:   void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv);
michael@0: 
michael@0:   double AppendWindowEnd() const
michael@0:   {
michael@0:     return mAppendWindowEnd;
michael@0:   }
michael@0: 
michael@0:   void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv);
michael@0: 
michael@0:   void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv);
michael@0:   void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv);
michael@0: 
michael@0:   void Abort(ErrorResult& aRv);
michael@0: 
michael@0:   void Remove(double aStart, double aEnd, ErrorResult& aRv);
michael@0:   /** End WebIDL Methods. */
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper)
michael@0: 
michael@0:   static already_AddRefed<SourceBuffer> Create(MediaSource* aMediaSource, const nsACString& aType);
michael@0:   ~SourceBuffer();
michael@0: 
michael@0:   MediaSource* GetParentObject() const;
michael@0: 
michael@0:   JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0: 
michael@0:   // Notify the SourceBuffer that it has been detached from the
michael@0:   // MediaSource's sourceBuffer list.
michael@0:   void Detach();
michael@0:   bool IsAttached() const
michael@0:   {
michael@0:     return mMediaSource != nullptr;
michael@0:   }
michael@0: 
michael@0:   void Ended();
michael@0: 
michael@0:   // Evict data in the source buffer in the given time range.
michael@0:   void Evict(double aStart, double aEnd);
michael@0: 
michael@0:   // Returns true if the data in the source buffer contains the given time.
michael@0:   bool ContainsTime(double aTime);
michael@0: 
michael@0: private:
michael@0:   SourceBuffer(MediaSource* aMediaSource, const nsACString& aType);
michael@0: 
michael@0:   friend class AsyncEventRunner<SourceBuffer>;
michael@0:   void DispatchSimpleEvent(const char* aName);
michael@0:   void QueueAsyncSimpleEvent(const char* aName);
michael@0: 
michael@0:   // Create a new decoder for mType, add it to mDecoders and update mCurrentDecoder.
michael@0:   bool InitNewDecoder();
michael@0: 
michael@0:   // Update mUpdating and fire the appropriate events.
michael@0:   void StartUpdating();
michael@0:   void StopUpdating();
michael@0:   void AbortUpdating();
michael@0: 
michael@0:   // Shared implementation of AppendBuffer overloads.
michael@0:   void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv);
michael@0: 
michael@0:   // Provide the minimum start time and maximum end time that is available
michael@0:   // in the data buffered by this SourceBuffer.
michael@0:   void GetBufferedStartEndTime(double* aStart, double* aEnd);
michael@0: 
michael@0:   nsRefPtr<MediaSource> mMediaSource;
michael@0: 
michael@0:   const nsAutoCString mType;
michael@0: 
michael@0:   nsAutoPtr<ContainerParser> mParser;
michael@0: 
michael@0:   // XXX: We only want to keep the current decoder alive, but need a way to
michael@0:   // query @buffered for everything this SourceBuffer is responsible for.
michael@0:   nsTArray<nsRefPtr<SubBufferDecoder>> mDecoders;
michael@0:   nsRefPtr<SubBufferDecoder> mCurrentDecoder;
michael@0: 
michael@0:   double mAppendWindowStart;
michael@0:   double mAppendWindowEnd;
michael@0: 
michael@0:   double mTimestampOffset;
michael@0: 
michael@0:   SourceBufferAppendMode mAppendMode;
michael@0:   bool mUpdating;
michael@0: };
michael@0: 
michael@0: } // namespace dom
michael@0: 
michael@0: } // namespace mozilla
michael@0: #endif /* mozilla_dom_SourceBuffer_h_ */