The Tor Browser / file comparison
comparison: content/media/mediasource/SourceBuffer.h
content/media/mediasource/SourceBuffer.h
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| 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_dom_SourceBuffer_h_ | |
| 8 #define mozilla_dom_SourceBuffer_h_ | |
| 9 | |
| 10 #include "MediaDecoderReader.h" | |
| 11 #include "MediaSource.h" | |
| 12 #include "js/RootingAPI.h" | |
| 13 #include "mozilla/Assertions.h" | |
| 14 #include "mozilla/Attributes.h" | |
| 15 #include "mozilla/dom/SourceBufferBinding.h" | |
| 16 #include "mozilla/dom/TypedArray.h" | |
| 17 #include "mozilla/DOMEventTargetHelper.h" | |
| 18 #include "mozilla/mozalloc.h" | |
| 19 #include "nsAutoPtr.h" | |
| 20 #include "nsCOMPtr.h" | |
| 21 #include "nsCycleCollectionNoteChild.h" | |
| 22 #include "nsCycleCollectionParticipant.h" | |
| 23 #include "nsISupports.h" | |
| 24 #include "nsStringGlue.h" | |
| 25 #include "nscore.h" | |
| 26 | |
| 27 class JSObject; | |
| 28 struct JSContext; | |
| 29 | |
| 30 namespace mozilla { | |
| 31 | |
| 32 class ContainerParser; | |
| 33 class ErrorResult; | |
| 34 class SourceBufferResource; | |
| 35 class SubBufferDecoder; | |
| 36 template <typename T> class AsyncEventRunner; | |
| 37 | |
| 38 namespace dom { | |
| 39 | |
| 40 class TimeRanges; | |
| 41 | |
| 42 class SourceBuffer MOZ_FINAL : public DOMEventTargetHelper | |
| 43 { | |
| 44 public: | |
| 45 /** WebIDL Methods. */ | |
| 46 SourceBufferAppendMode Mode() const | |
| 47 { | |
| 48 return mAppendMode; | |
| 49 } | |
| 50 | |
| 51 void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv); | |
| 52 | |
| 53 bool Updating() const | |
| 54 { | |
| 55 return mUpdating; | |
| 56 } | |
| 57 | |
| 58 already_AddRefed<TimeRanges> GetBuffered(ErrorResult& aRv); | |
| 59 | |
| 60 double TimestampOffset() const | |
| 61 { | |
| 62 return mTimestampOffset; | |
| 63 } | |
| 64 | |
| 65 void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv); | |
| 66 | |
| 67 double AppendWindowStart() const | |
| 68 { | |
| 69 return mAppendWindowStart; | |
| 70 } | |
| 71 | |
| 72 void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv); | |
| 73 | |
| 74 double AppendWindowEnd() const | |
| 75 { | |
| 76 return mAppendWindowEnd; | |
| 77 } | |
| 78 | |
| 79 void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv); | |
| 80 | |
| 81 void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv); | |
| 82 void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv); | |
| 83 | |
| 84 void Abort(ErrorResult& aRv); | |
| 85 | |
| 86 void Remove(double aStart, double aEnd, ErrorResult& aRv); | |
| 87 /** End WebIDL Methods. */ | |
| 88 | |
| 89 NS_DECL_ISUPPORTS_INHERITED | |
| 90 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper) | |
| 91 | |
| 92 static already_AddRefed<SourceBuffer> Create(MediaSource* aMediaSource, const nsACString& aType); | |
| 93 ~SourceBuffer(); | |
| 94 | |
| 95 MediaSource* GetParentObject() const; | |
| 96 | |
| 97 JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; | |
| 98 | |
| 99 // Notify the SourceBuffer that it has been detached from the | |
| 100 // MediaSource's sourceBuffer list. | |
| 101 void Detach(); | |
| 102 bool IsAttached() const | |
| 103 { | |
| 104 return mMediaSource != nullptr; | |
| 105 } | |
| 106 | |
| 107 void Ended(); | |
| 108 | |
| 109 // Evict data in the source buffer in the given time range. | |
| 110 void Evict(double aStart, double aEnd); | |
| 111 | |
| 112 // Returns true if the data in the source buffer contains the given time. | |
| 113 bool ContainsTime(double aTime); | |
| 114 | |
| 115 private: | |
| 116 SourceBuffer(MediaSource* aMediaSource, const nsACString& aType); | |
| 117 | |
| 118 friend class AsyncEventRunner<SourceBuffer>; | |
| 119 void DispatchSimpleEvent(const char* aName); | |
| 120 void QueueAsyncSimpleEvent(const char* aName); | |
| 121 | |
| 122 // Create a new decoder for mType, add it to mDecoders and update mCurrentDecoder. | |
| 123 bool InitNewDecoder(); | |
| 124 | |
| 125 // Update mUpdating and fire the appropriate events. | |
| 126 void StartUpdating(); | |
| 127 void StopUpdating(); | |
| 128 void AbortUpdating(); | |
| 129 | |
| 130 // Shared implementation of AppendBuffer overloads. | |
| 131 void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv); | |
| 132 | |
| 133 // Provide the minimum start time and maximum end time that is available | |
| 134 // in the data buffered by this SourceBuffer. | |
| 135 void GetBufferedStartEndTime(double* aStart, double* aEnd); | |
| 136 | |
| 137 nsRefPtr<MediaSource> mMediaSource; | |
| 138 | |
| 139 const nsAutoCString mType; | |
| 140 | |
| 141 nsAutoPtr<ContainerParser> mParser; | |
| 142 | |
| 143 // XXX: We only want to keep the current decoder alive, but need a way to | |
| 144 // query @buffered for everything this SourceBuffer is responsible for. | |
| 145 nsTArray<nsRefPtr<SubBufferDecoder>> mDecoders; | |
| 146 nsRefPtr<SubBufferDecoder> mCurrentDecoder; | |
| 147 | |
| 148 double mAppendWindowStart; | |
| 149 double mAppendWindowEnd; | |
| 150 | |
| 151 double mTimestampOffset; | |
| 152 | |
| 153 SourceBufferAppendMode mAppendMode; | |
| 154 bool mUpdating; | |
| 155 }; | |
| 156 | |
| 157 } // namespace dom | |
| 158 | |
| 159 } // namespace mozilla | |
| 160 #endif /* mozilla_dom_SourceBuffer_h_ */ |
