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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 */
#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
namespace dom {
class GlobalObject;
class SourceBuffer;
class SourceBufferList;
template <typename T>
class Optional;
{ \
0x3839d699, 0x22c5, 0x439f, { \
0x94, 0xca, 0x0e, 0x0b, 0x26, 0xf9, 0xca, 0xbf \
} \
class MediaSource final : public DOMEventTargetHelper,
public DecoderDoctorLifeLogger<MediaSource> {
/** 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);
/** End WebIDL Methods. */
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::TimeInterval LiveSeekableRange() const {
return mLiveSeekableRange.value();
AbstractThread* AbstractMainThread() const { return mAbstractMainThread; }
// Resolve all CompletionPromise pending.
void CompletePendingTransactions();
// SourceBuffer uses SetDuration and SourceBufferIsActive
friend class mozilla::dom::SourceBuffer;
explicit MediaSource(nsPIDOMWindowInner* aWindow);
friend class AsyncEventRunner<MediaSource>;
void DispatchSimpleEvent(const char* aName);
void QueueAsyncSimpleEvent(const char* aName);
void DurationChange(double aNewDuration, ErrorResult& aRv);
// SetDuration with no checks.
void SetDuration(double aDuration);
typedef MozPromise<bool, MediaResult, /* IsExclusive = */ true>
// 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::TimeInterval> mLiveSeekableRange;
nsTArray<MozPromiseHolder<ActiveCompletionPromise>> mCompletionPromises;
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_MediaSource_h_ */