content/media/mediasource/SourceBuffer.h@44a2da4a2ab2 (annotated)
content/media/mediasource/SourceBuffer.h
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| michael@0 | 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef mozilla_dom_SourceBuffer_h_ |
| michael@0 | 8 | #define mozilla_dom_SourceBuffer_h_ |
| michael@0 | 9 | |
| michael@0 | 10 | #include "MediaDecoderReader.h" |
| michael@0 | 11 | #include "MediaSource.h" |
| michael@0 | 12 | #include "js/RootingAPI.h" |
| michael@0 | 13 | #include "mozilla/Assertions.h" |
| michael@0 | 14 | #include "mozilla/Attributes.h" |
| michael@0 | 15 | #include "mozilla/dom/SourceBufferBinding.h" |
| michael@0 | 16 | #include "mozilla/dom/TypedArray.h" |
| michael@0 | 17 | #include "mozilla/DOMEventTargetHelper.h" |
| michael@0 | 18 | #include "mozilla/mozalloc.h" |
| michael@0 | 19 | #include "nsAutoPtr.h" |
| michael@0 | 20 | #include "nsCOMPtr.h" |
| michael@0 | 21 | #include "nsCycleCollectionNoteChild.h" |
| michael@0 | 22 | #include "nsCycleCollectionParticipant.h" |
| michael@0 | 23 | #include "nsISupports.h" |
| michael@0 | 24 | #include "nsStringGlue.h" |
| michael@0 | 25 | #include "nscore.h" |
| michael@0 | 26 | |
| michael@0 | 27 | class JSObject; |
| michael@0 | 28 | struct JSContext; |
| michael@0 | 29 | |
| michael@0 | 30 | namespace mozilla { |
| michael@0 | 31 | |
| michael@0 | 32 | class ContainerParser; |
| michael@0 | 33 | class ErrorResult; |
| michael@0 | 34 | class SourceBufferResource; |
| michael@0 | 35 | class SubBufferDecoder; |
| michael@0 | 36 | template <typename T> class AsyncEventRunner; |
| michael@0 | 37 | |
| michael@0 | 38 | namespace dom { |
| michael@0 | 39 | |
| michael@0 | 40 | class TimeRanges; |
| michael@0 | 41 | |
| michael@0 | 42 | class SourceBuffer MOZ_FINAL : public DOMEventTargetHelper |
| michael@0 | 43 | { |
| michael@0 | 44 | public: |
| michael@0 | 45 | /** WebIDL Methods. */ |
| michael@0 | 46 | SourceBufferAppendMode Mode() const |
| michael@0 | 47 | { |
| michael@0 | 48 | return mAppendMode; |
| michael@0 | 49 | } |
| michael@0 | 50 | |
| michael@0 | 51 | void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv); |
| michael@0 | 52 | |
| michael@0 | 53 | bool Updating() const |
| michael@0 | 54 | { |
| michael@0 | 55 | return mUpdating; |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | already_AddRefed<TimeRanges> GetBuffered(ErrorResult& aRv); |
| michael@0 | 59 | |
| michael@0 | 60 | double TimestampOffset() const |
| michael@0 | 61 | { |
| michael@0 | 62 | return mTimestampOffset; |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv); |
| michael@0 | 66 | |
| michael@0 | 67 | double AppendWindowStart() const |
| michael@0 | 68 | { |
| michael@0 | 69 | return mAppendWindowStart; |
| michael@0 | 70 | } |
| michael@0 | 71 | |
| michael@0 | 72 | void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv); |
| michael@0 | 73 | |
| michael@0 | 74 | double AppendWindowEnd() const |
| michael@0 | 75 | { |
| michael@0 | 76 | return mAppendWindowEnd; |
| michael@0 | 77 | } |
| michael@0 | 78 | |
| michael@0 | 79 | void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv); |
| michael@0 | 80 | |
| michael@0 | 81 | void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv); |
| michael@0 | 82 | void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv); |
| michael@0 | 83 | |
| michael@0 | 84 | void Abort(ErrorResult& aRv); |
| michael@0 | 85 | |
| michael@0 | 86 | void Remove(double aStart, double aEnd, ErrorResult& aRv); |
| michael@0 | 87 | /** End WebIDL Methods. */ |
| michael@0 | 88 | |
| michael@0 | 89 | NS_DECL_ISUPPORTS_INHERITED |
| michael@0 | 90 | NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper) |
| michael@0 | 91 | |
| michael@0 | 92 | static already_AddRefed<SourceBuffer> Create(MediaSource* aMediaSource, const nsACString& aType); |
| michael@0 | 93 | ~SourceBuffer(); |
| michael@0 | 94 | |
| michael@0 | 95 | MediaSource* GetParentObject() const; |
| michael@0 | 96 | |
| michael@0 | 97 | JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE; |
| michael@0 | 98 | |
| michael@0 | 99 | // Notify the SourceBuffer that it has been detached from the |
| michael@0 | 100 | // MediaSource's sourceBuffer list. |
| michael@0 | 101 | void Detach(); |
| michael@0 | 102 | bool IsAttached() const |
| michael@0 | 103 | { |
| michael@0 | 104 | return mMediaSource != nullptr; |
| michael@0 | 105 | } |
| michael@0 | 106 | |
| michael@0 | 107 | void Ended(); |
| michael@0 | 108 | |
| michael@0 | 109 | // Evict data in the source buffer in the given time range. |
| michael@0 | 110 | void Evict(double aStart, double aEnd); |
| michael@0 | 111 | |
| michael@0 | 112 | // Returns true if the data in the source buffer contains the given time. |
| michael@0 | 113 | bool ContainsTime(double aTime); |
| michael@0 | 114 | |
| michael@0 | 115 | private: |
| michael@0 | 116 | SourceBuffer(MediaSource* aMediaSource, const nsACString& aType); |
| michael@0 | 117 | |
| michael@0 | 118 | friend class AsyncEventRunner<SourceBuffer>; |
| michael@0 | 119 | void DispatchSimpleEvent(const char* aName); |
| michael@0 | 120 | void QueueAsyncSimpleEvent(const char* aName); |
| michael@0 | 121 | |
| michael@0 | 122 | // Create a new decoder for mType, add it to mDecoders and update mCurrentDecoder. |
| michael@0 | 123 | bool InitNewDecoder(); |
| michael@0 | 124 | |
| michael@0 | 125 | // Update mUpdating and fire the appropriate events. |
| michael@0 | 126 | void StartUpdating(); |
| michael@0 | 127 | void StopUpdating(); |
| michael@0 | 128 | void AbortUpdating(); |
| michael@0 | 129 | |
| michael@0 | 130 | // Shared implementation of AppendBuffer overloads. |
| michael@0 | 131 | void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv); |
| michael@0 | 132 | |
| michael@0 | 133 | // Provide the minimum start time and maximum end time that is available |
| michael@0 | 134 | // in the data buffered by this SourceBuffer. |
| michael@0 | 135 | void GetBufferedStartEndTime(double* aStart, double* aEnd); |
| michael@0 | 136 | |
| michael@0 | 137 | nsRefPtr<MediaSource> mMediaSource; |
| michael@0 | 138 | |
| michael@0 | 139 | const nsAutoCString mType; |
| michael@0 | 140 | |
| michael@0 | 141 | nsAutoPtr<ContainerParser> mParser; |
| michael@0 | 142 | |
| michael@0 | 143 | // XXX: We only want to keep the current decoder alive, but need a way to |
| michael@0 | 144 | // query @buffered for everything this SourceBuffer is responsible for. |
| michael@0 | 145 | nsTArray<nsRefPtr<SubBufferDecoder>> mDecoders; |
| michael@0 | 146 | nsRefPtr<SubBufferDecoder> mCurrentDecoder; |
| michael@0 | 147 | |
| michael@0 | 148 | double mAppendWindowStart; |
| michael@0 | 149 | double mAppendWindowEnd; |
| michael@0 | 150 | |
| michael@0 | 151 | double mTimestampOffset; |
| michael@0 | 152 | |
| michael@0 | 153 | SourceBufferAppendMode mAppendMode; |
| michael@0 | 154 | bool mUpdating; |
| michael@0 | 155 | }; |
| michael@0 | 156 | |
| michael@0 | 157 | } // namespace dom |
| michael@0 | 158 | |
| michael@0 | 159 | } // namespace mozilla |
| michael@0 | 160 | #endif /* mozilla_dom_SourceBuffer_h_ */ |
