1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/mediasource/SourceBuffer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,160 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_SourceBuffer_h_
1.11 +#define mozilla_dom_SourceBuffer_h_
1.12 +
1.13 +#include "MediaDecoderReader.h"
1.14 +#include "MediaSource.h"
1.15 +#include "js/RootingAPI.h"
1.16 +#include "mozilla/Assertions.h"
1.17 +#include "mozilla/Attributes.h"
1.18 +#include "mozilla/dom/SourceBufferBinding.h"
1.19 +#include "mozilla/dom/TypedArray.h"
1.20 +#include "mozilla/DOMEventTargetHelper.h"
1.21 +#include "mozilla/mozalloc.h"
1.22 +#include "nsAutoPtr.h"
1.23 +#include "nsCOMPtr.h"
1.24 +#include "nsCycleCollectionNoteChild.h"
1.25 +#include "nsCycleCollectionParticipant.h"
1.26 +#include "nsISupports.h"
1.27 +#include "nsStringGlue.h"
1.28 +#include "nscore.h"
1.29 +
1.30 +class JSObject;
1.31 +struct JSContext;
1.32 +
1.33 +namespace mozilla {
1.34 +
1.35 +class ContainerParser;
1.36 +class ErrorResult;
1.37 +class SourceBufferResource;
1.38 +class SubBufferDecoder;
1.39 +template <typename T> class AsyncEventRunner;
1.40 +
1.41 +namespace dom {
1.42 +
1.43 +class TimeRanges;
1.44 +
1.45 +class SourceBuffer MOZ_FINAL : public DOMEventTargetHelper
1.46 +{
1.47 +public:
1.48 + /** WebIDL Methods. */
1.49 + SourceBufferAppendMode Mode() const
1.50 + {
1.51 + return mAppendMode;
1.52 + }
1.53 +
1.54 + void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv);
1.55 +
1.56 + bool Updating() const
1.57 + {
1.58 + return mUpdating;
1.59 + }
1.60 +
1.61 + already_AddRefed<TimeRanges> GetBuffered(ErrorResult& aRv);
1.62 +
1.63 + double TimestampOffset() const
1.64 + {
1.65 + return mTimestampOffset;
1.66 + }
1.67 +
1.68 + void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv);
1.69 +
1.70 + double AppendWindowStart() const
1.71 + {
1.72 + return mAppendWindowStart;
1.73 + }
1.74 +
1.75 + void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv);
1.76 +
1.77 + double AppendWindowEnd() const
1.78 + {
1.79 + return mAppendWindowEnd;
1.80 + }
1.81 +
1.82 + void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv);
1.83 +
1.84 + void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv);
1.85 + void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv);
1.86 +
1.87 + void Abort(ErrorResult& aRv);
1.88 +
1.89 + void Remove(double aStart, double aEnd, ErrorResult& aRv);
1.90 + /** End WebIDL Methods. */
1.91 +
1.92 + NS_DECL_ISUPPORTS_INHERITED
1.93 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper)
1.94 +
1.95 + static already_AddRefed<SourceBuffer> Create(MediaSource* aMediaSource, const nsACString& aType);
1.96 + ~SourceBuffer();
1.97 +
1.98 + MediaSource* GetParentObject() const;
1.99 +
1.100 + JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
1.101 +
1.102 + // Notify the SourceBuffer that it has been detached from the
1.103 + // MediaSource's sourceBuffer list.
1.104 + void Detach();
1.105 + bool IsAttached() const
1.106 + {
1.107 + return mMediaSource != nullptr;
1.108 + }
1.109 +
1.110 + void Ended();
1.111 +
1.112 + // Evict data in the source buffer in the given time range.
1.113 + void Evict(double aStart, double aEnd);
1.114 +
1.115 + // Returns true if the data in the source buffer contains the given time.
1.116 + bool ContainsTime(double aTime);
1.117 +
1.118 +private:
1.119 + SourceBuffer(MediaSource* aMediaSource, const nsACString& aType);
1.120 +
1.121 + friend class AsyncEventRunner<SourceBuffer>;
1.122 + void DispatchSimpleEvent(const char* aName);
1.123 + void QueueAsyncSimpleEvent(const char* aName);
1.124 +
1.125 + // Create a new decoder for mType, add it to mDecoders and update mCurrentDecoder.
1.126 + bool InitNewDecoder();
1.127 +
1.128 + // Update mUpdating and fire the appropriate events.
1.129 + void StartUpdating();
1.130 + void StopUpdating();
1.131 + void AbortUpdating();
1.132 +
1.133 + // Shared implementation of AppendBuffer overloads.
1.134 + void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv);
1.135 +
1.136 + // Provide the minimum start time and maximum end time that is available
1.137 + // in the data buffered by this SourceBuffer.
1.138 + void GetBufferedStartEndTime(double* aStart, double* aEnd);
1.139 +
1.140 + nsRefPtr<MediaSource> mMediaSource;
1.141 +
1.142 + const nsAutoCString mType;
1.143 +
1.144 + nsAutoPtr<ContainerParser> mParser;
1.145 +
1.146 + // XXX: We only want to keep the current decoder alive, but need a way to
1.147 + // query @buffered for everything this SourceBuffer is responsible for.
1.148 + nsTArray<nsRefPtr<SubBufferDecoder>> mDecoders;
1.149 + nsRefPtr<SubBufferDecoder> mCurrentDecoder;
1.150 +
1.151 + double mAppendWindowStart;
1.152 + double mAppendWindowEnd;
1.153 +
1.154 + double mTimestampOffset;
1.155 +
1.156 + SourceBufferAppendMode mAppendMode;
1.157 + bool mUpdating;
1.158 +};
1.159 +
1.160 +} // namespace dom
1.161 +
1.162 +} // namespace mozilla
1.163 +#endif /* mozilla_dom_SourceBuffer_h_ */
