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-rw-r--r--dom/media/mediasource/MediaSource.h182
1 files changed, 182 insertions, 0 deletions
diff --git a/dom/media/mediasource/MediaSource.h b/dom/media/mediasource/MediaSource.h
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+++ b/dom/media/mediasource/MediaSource.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_MediaSource_h_
+#define mozilla_dom_MediaSource_h_
+
+#include "MediaSourceDecoder.h"
+#include "js/RootingAPI.h"
+#include "mozilla/Assertions.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/MozPromise.h"
+#include "mozilla/dom/MediaSourceBinding.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionNoteChild.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsID.h"
+#include "nsISupports.h"
+#include "nscore.h"
+#include "TimeUnits.h"
+
+struct JSContext;
+class JSObject;
+class nsPIDOMWindowInner;
+
+namespace mozilla {
+
+class AbstractThread;
+class ErrorResult;
+template <typename T>
+class AsyncEventRunner;
+class MediaResult;
+
+namespace dom {
+class MediaSource;
+} // namespace dom
+DDLoggedTypeName(dom::MediaSource);
+
+namespace dom {
+
+class GlobalObject;
+class SourceBuffer;
+class SourceBufferList;
+template <typename T>
+class Optional;
+
+#define MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID \
+ { \
+ 0x3839d699, 0x22c5, 0x439f, { \
+ 0x94, 0xca, 0x0e, 0x0b, 0x26, 0xf9, 0xca, 0xbf \
+ } \
+ }
+
+class MediaSource final : public DOMEventTargetHelper,
+ public DecoderDoctorLifeLogger<MediaSource> {
+ public:
+ /** WebIDL Methods. */
+ static already_AddRefed<MediaSource> Constructor(const GlobalObject& aGlobal,
+ ErrorResult& aRv);
+
+ SourceBufferList* SourceBuffers();
+ SourceBufferList* ActiveSourceBuffers();
+ MediaSourceReadyState ReadyState();
+
+ double Duration();
+ void SetDuration(double aDuration, ErrorResult& aRv);
+
+ already_AddRefed<SourceBuffer> AddSourceBuffer(const nsAString& aType,
+ ErrorResult& aRv);
+ void RemoveSourceBuffer(SourceBuffer& aSourceBuffer, ErrorResult& aRv);
+
+ void EndOfStream(const Optional<MediaSourceEndOfStreamError>& aError,
+ ErrorResult& aRv);
+ void EndOfStream(const MediaResult& aError);
+
+ void SetLiveSeekableRange(double aStart, double aEnd, ErrorResult& aRv);
+ void ClearLiveSeekableRange(ErrorResult& aRv);
+
+ static bool IsTypeSupported(const GlobalObject&, const nsAString& aType);
+ // Throws on aRv if not supported.
+ static void IsTypeSupported(const nsAString& aType,
+ DecoderDoctorDiagnostics* aDiagnostics,
+ ErrorResult& aRv);
+
+ IMPL_EVENT_HANDLER(sourceopen);
+ IMPL_EVENT_HANDLER(sourceended);
+ IMPL_EVENT_HANDLER(sourceclose);
+
+ /** End WebIDL Methods. */
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaSource, DOMEventTargetHelper)
+ NS_DECLARE_STATIC_IID_ACCESSOR(MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID)
+
+ nsPIDOMWindowInner* GetParentObject() const;
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ // Attach this MediaSource to Decoder aDecoder. Returns false if already
+ // attached.
+ bool Attach(MediaSourceDecoder* aDecoder);
+ void Detach();
+
+ // Set mReadyState to aState and fire the required events at the MediaSource.
+ void SetReadyState(MediaSourceReadyState aState);
+
+ // Used by SourceBuffer to call CreateSubDecoder.
+ MediaSourceDecoder* GetDecoder() { return mDecoder; }
+
+ nsIPrincipal* GetPrincipal() { return mPrincipal; }
+
+ // Returns a structure describing the state of the MediaSource internal
+ // buffered data. Used for debugging purposes.
+ already_AddRefed<Promise> MozDebugReaderData(ErrorResult& aRv);
+
+ bool HasLiveSeekableRange() const { return mLiveSeekableRange.isSome(); }
+ media::TimeRanges LiveSeekableRange() const {
+ return mLiveSeekableRange.value();
+ }
+
+ AbstractThread* AbstractMainThread() const { return mAbstractMainThread; }
+
+ // Resolve all CompletionPromise pending.
+ void CompletePendingTransactions();
+
+ private:
+ // SourceBuffer uses SetDuration and SourceBufferIsActive
+ friend class mozilla::dom::SourceBuffer;
+
+ ~MediaSource();
+
+ explicit MediaSource(nsPIDOMWindowInner* aWindow);
+
+ friend class AsyncEventRunner<MediaSource>;
+ void DispatchSimpleEvent(const char* aName);
+ void QueueAsyncSimpleEvent(const char* aName);
+
+ void DurationChange(const media::TimeUnit& aNewDuration, ErrorResult& aRv);
+ void DurationChange(double aNewDuration, ErrorResult& aRv);
+
+ // SetDuration with no checks.
+ void SetDuration(const media::TimeUnit& aDuration);
+
+ typedef MozPromise<bool, MediaResult, /* IsExclusive = */ true>
+ ActiveCompletionPromise;
+ // Mark SourceBuffer as active and rebuild ActiveSourceBuffers.
+ // Return a MozPromise that will be resolved once all related operations are
+ // completed, or can't progress any further.
+ // Such as, transition of readyState from HAVE_NOTHING to HAVE_METADATA.
+ RefPtr<ActiveCompletionPromise> SourceBufferIsActive(
+ SourceBuffer* aSourceBuffer);
+
+ RefPtr<SourceBufferList> mSourceBuffers;
+ RefPtr<SourceBufferList> mActiveSourceBuffers;
+
+ RefPtr<MediaSourceDecoder> mDecoder;
+ // Ensures the media element remains alive to dispatch progress and
+ // durationchanged events.
+ RefPtr<HTMLMediaElement> mMediaElement;
+
+ RefPtr<nsIPrincipal> mPrincipal;
+
+ const RefPtr<AbstractThread> mAbstractMainThread;
+
+ MediaSourceReadyState mReadyState;
+
+ Maybe<media::TimeRanges> mLiveSeekableRange;
+ nsTArray<MozPromiseHolder<ActiveCompletionPromise>> mCompletionPromises;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(MediaSource,
+ MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID)
+
+} // namespace dom
+
+} // namespace mozilla
+
+#endif /* mozilla_dom_MediaSource_h_ */