1 files changed, 189 insertions, 0 deletions
diff --git a/dom/media/mediasource/SourceBuffer.h b/dom/media/mediasource/SourceBuffer.h
new file mode 100644
index 000000000..440e8f60e
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+++ b/dom/media/mediasource/SourceBuffer.h
@@ -0,0 +1,189 @@
+/* -*- 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_ */