mirror of
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167 lines
4.2 KiB
C++
167 lines
4.2 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 mozilla_dom_SourceBuffer_h_
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#define mozilla_dom_SourceBuffer_h_
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#include "MediaSource.h"
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#include "js/RootingAPI.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/DOMEventTargetHelper.h"
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#include "mozilla/dom/SourceBufferBinding.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/mozalloc.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionNoteChild.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISupports.h"
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#include "nsString.h"
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#include "nscore.h"
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class JSObject;
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struct JSContext;
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namespace mozilla {
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class ErrorResult;
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class TrackBuffer;
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template <typename T> class AsyncEventRunner;
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namespace dom {
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class TimeRanges;
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class SourceBuffer MOZ_FINAL : public DOMEventTargetHelper
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{
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public:
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/** WebIDL Methods. */
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SourceBufferAppendMode Mode() const
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{
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return mAppendMode;
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}
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void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv);
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bool Updating() const
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{
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return mUpdating;
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}
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already_AddRefed<TimeRanges> GetBuffered(ErrorResult& aRv);
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double TimestampOffset() const
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{
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return mTimestampOffset;
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}
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void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv);
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double AppendWindowStart() const
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{
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return mAppendWindowStart;
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}
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void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv);
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double AppendWindowEnd() const
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{
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return mAppendWindowEnd;
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}
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void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv);
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void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv);
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void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv);
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void Abort(ErrorResult& aRv);
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void Remove(double aStart, double aEnd, ErrorResult& aRv);
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/** End WebIDL Methods. */
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper)
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SourceBuffer(MediaSource* aMediaSource, const nsACString& aType);
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MediaSource* GetParentObject() const;
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JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
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// Notify the SourceBuffer that it has been detached from the
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// MediaSource's sourceBuffer list.
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void Detach();
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bool IsAttached() const
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{
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return mMediaSource != nullptr;
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}
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void Ended();
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// Evict data in the source buffer in the given time range.
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void Evict(double aStart, double aEnd);
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double GetBufferedStart();
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double GetBufferedEnd();
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// Runs the range removal algorithm as defined by the MSE spec.
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void RangeRemoval(double aStart, double aEnd);
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#if defined(DEBUG)
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void Dump(const char* aPath);
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#endif
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private:
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~SourceBuffer();
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friend class AsyncEventRunner<SourceBuffer>;
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void DispatchSimpleEvent(const char* aName);
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void QueueAsyncSimpleEvent(const char* aName);
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// Update mUpdating and fire the appropriate events.
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void StartUpdating();
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void StopUpdating();
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void AbortUpdating();
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// If the media segment contains data beyond the current duration,
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// then run the duration change algorithm with new duration set to the
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// maximum of the current duration and the group end timestamp.
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void CheckEndTime();
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// Shared implementation of AppendBuffer overloads.
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void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv);
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// Implement the "Append Error Algorithm".
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// Will call endOfStream() with "decode" error if aDecodeError is true.
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// 3.5.3 Append Error Algorithm
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// http://w3c.github.io/media-source/#sourcebuffer-append-error
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void AppendError(bool aDecoderError);
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// Implements the "Prepare Append Algorithm". Returns true if the append
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// may continue, or false (with aRv set) on error.
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bool PrepareAppend(ErrorResult& aRv);
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nsRefPtr<MediaSource> mMediaSource;
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uint32_t mEvictionThreshold;
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nsRefPtr<TrackBuffer> mTrackBuffer;
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double mAppendWindowStart;
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double mAppendWindowEnd;
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double mTimestampOffset;
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SourceBufferAppendMode mAppendMode;
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bool mUpdating;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_SourceBuffer_h_ */
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