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-rw-r--r--dom/media/mediasource/SourceBuffer.h189
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diff --git a/dom/media/mediasource/SourceBuffer.h b/dom/media/mediasource/SourceBuffer.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_SourceBuffer_h_
+#define mozilla_dom_SourceBuffer_h_
+
+#include "mozilla/MozPromise.h"
+#include "MediaSource.h"
+#include "js/RootingAPI.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/Atomics.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/dom/SourceBufferBinding.h"
+#include "mozilla/dom/TypedArray.h"
+#include "mozilla/mozalloc.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionNoteChild.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupports.h"
+#include "nsString.h"
+#include "nscore.h"
+#include "TrackBuffersManager.h"
+#include "SourceBufferTask.h"
+
+class JSObject;
+struct JSContext;
+
+namespace mozilla {
+
+class ErrorResult;
+class MediaByteBuffer;
+template <typename T> class AsyncEventRunner;
+
+namespace dom {
+
+class TimeRanges;
+
+class SourceBuffer final : public DOMEventTargetHelper
+{
+public:
+ /** WebIDL Methods. */
+ SourceBufferAppendMode Mode() const
+ {
+ return mCurrentAttributes.GetAppendMode();
+ }
+
+ void SetMode(SourceBufferAppendMode aMode, ErrorResult& aRv);
+
+ bool Updating() const
+ {
+ return mUpdating;
+ }
+
+ TimeRanges* GetBuffered(ErrorResult& aRv);
+ media::TimeIntervals GetTimeIntervals();
+
+ double TimestampOffset() const
+ {
+ return mCurrentAttributes.GetApparentTimestampOffset();
+ }
+
+ void SetTimestampOffset(double aTimestampOffset, ErrorResult& aRv);
+
+ double AppendWindowStart() const
+ {
+ return mCurrentAttributes.GetAppendWindowStart();
+ }
+
+ void SetAppendWindowStart(double aAppendWindowStart, ErrorResult& aRv);
+
+ double AppendWindowEnd() const
+ {
+ return mCurrentAttributes.GetAppendWindowEnd();
+ }
+
+ void SetAppendWindowEnd(double aAppendWindowEnd, ErrorResult& aRv);
+
+ void AppendBuffer(const ArrayBuffer& aData, ErrorResult& aRv);
+ void AppendBuffer(const ArrayBufferView& aData, ErrorResult& aRv);
+
+ void Abort(ErrorResult& aRv);
+ void AbortBufferAppend();
+
+ void Remove(double aStart, double aEnd, ErrorResult& aRv);
+
+ IMPL_EVENT_HANDLER(updatestart);
+ IMPL_EVENT_HANDLER(update);
+ IMPL_EVENT_HANDLER(updateend);
+ IMPL_EVENT_HANDLER(error);
+ IMPL_EVENT_HANDLER(abort);
+
+ /** End WebIDL Methods. */
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBuffer, DOMEventTargetHelper)
+
+ SourceBuffer(MediaSource* aMediaSource, const nsACString& aType);
+
+ MediaSource* GetParentObject() const;
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ // Notify the SourceBuffer that it has been detached from the
+ // MediaSource's sourceBuffer list.
+ void Detach();
+ bool IsAttached() const
+ {
+ return mMediaSource != nullptr;
+ }
+
+ void Ended();
+
+ double GetBufferedStart();
+ double GetBufferedEnd();
+ double HighestStartTime();
+ double HighestEndTime();
+
+ // Runs the range removal algorithm as defined by the MSE spec.
+ void RangeRemoval(double aStart, double aEnd);
+
+ bool IsActive() const
+ {
+ return mActive;
+ }
+
+private:
+ ~SourceBuffer();
+
+ friend class AsyncEventRunner<SourceBuffer>;
+ friend class BufferAppendRunnable;
+ friend class mozilla::TrackBuffersManager;
+ void DispatchSimpleEvent(const char* aName);
+ void QueueAsyncSimpleEvent(const char* aName);
+
+ // Update mUpdating and fire the appropriate events.
+ void StartUpdating();
+ void StopUpdating();
+ void AbortUpdating();
+ void ResetParserState();
+
+ // If the media segment contains data beyond the current duration,
+ // then run the duration change algorithm with new duration set to the
+ // maximum of the current duration and the group end timestamp.
+ void CheckEndTime();
+
+ // Shared implementation of AppendBuffer overloads.
+ void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv);
+
+ // Implement the "Append Error Algorithm".
+ // Will call endOfStream() with "decode" error if aDecodeError is true.
+ // 3.5.3 Append Error Algorithm
+ // http://w3c.github.io/media-source/#sourcebuffer-append-error
+ void AppendError(const MediaResult& aDecodeError);
+
+ // Implements the "Prepare Append Algorithm". Returns MediaByteBuffer object
+ // on success or nullptr (with aRv set) on error.
+ already_AddRefed<MediaByteBuffer> PrepareAppend(const uint8_t* aData,
+ uint32_t aLength,
+ ErrorResult& aRv);
+
+ void AppendDataCompletedWithSuccess(SourceBufferTask::AppendBufferResult aResult);
+ void AppendDataErrored(const MediaResult& aError);
+
+ RefPtr<MediaSource> mMediaSource;
+
+ RefPtr<TrackBuffersManager> mTrackBuffersManager;
+ SourceBufferAttributes mCurrentAttributes;
+
+ bool mUpdating;
+
+ mozilla::Atomic<bool> mActive;
+
+ MozPromiseRequestHolder<SourceBufferTask::AppendPromise> mPendingAppend;
+ MozPromiseRequestHolder<SourceBufferTask::RangeRemovalPromise> mPendingRemoval;
+ const nsCString mType;
+
+ RefPtr<TimeRanges> mBuffered;
+};
+
+} // namespace dom
+
+} // namespace mozilla
+
+#endif /* mozilla_dom_SourceBuffer_h_ */