gecko/content/media/mediasource/MediaSource.h

138 lines
3.9 KiB
C++

/* -*- 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 "AsyncEventRunner.h"
#include "mozilla/Attributes.h"
#include "mozilla/Monitor.h"
#include "mozilla/dom/MediaSourceBinding.h"
#include "mozilla/dom/TypedArray.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsDOMEventTargetHelper.h"
#include "nsWrapperCache.h"
#include "nscore.h"
namespace mozilla {
namespace dom {
class HTMLMediaElement;
class MediaSourceInputAdapter;
class SourceBufferList;
class SourceBuffer;
class TimeRanges;
#define MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID \
{ 0x3839d699, 0x22c5, 0x439f, \
{ 0x94, 0xca, 0x0e, 0x0b, 0x26, 0xf9, 0xca, 0xbf } }
class MediaSource MOZ_FINAL : public nsDOMEventTargetHelper
{
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);
static bool IsTypeSupported(const GlobalObject& aGlobal,
const nsAString& aType);
/** End WebIDL Methods. */
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaSource, nsDOMEventTargetHelper)
NS_DECLARE_STATIC_IID_ACCESSOR(MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID)
nsPIDOMWindow* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
const nsString& GetType()
{
return mContentType;
}
already_AddRefed<nsIInputStream> CreateInternalStream();
void AppendData(const uint8_t* aData, uint32_t aLength, ErrorResult& aRv);
// Semi-private, for MediaSourceInputAdapter only.
nsTArray<uint8_t> const& GetData()
{
return mData;
}
Monitor& GetMonitor()
{
return mMonitor;
}
bool AppendDone() const
{
return mReadyState == MediaSourceReadyState::Closed || mReadyState == MediaSourceReadyState::Ended;
}
// Attach this MediaSource to MediaElement aElement. Returns false if already attached.
bool AttachElement(HTMLMediaElement* aElement);
void DetachElement();
// Set mReadyState to aState and fire the required events at the MediaSource.
void SetReadyState(MediaSourceReadyState aState);
void GetBuffered(TimeRanges* aRanges);
private:
explicit MediaSource(nsPIDOMWindow* aWindow);
friend class AsyncEventRunnner<MediaSource>;
void DispatchSimpleEvent(const char* aName);
void QueueAsyncSimpleEvent(const char* aName);
void NotifyListeners();
void DurationChange(double aNewDuration, ErrorResult& aRv);
void EndOfStreamInternal(const Optional<MediaSourceEndOfStreamError>& aError, ErrorResult& aRv);
static bool IsTypeSupportedInternal(const nsAString& aType, ErrorResult& aRv);
double mDuration;
nsTArray<nsRefPtr<MediaSourceInputAdapter> > mAdapters;
// Protected by monitor.
nsTArray<uint8_t> mData;
// Protects access to mData.
Monitor mMonitor;
nsRefPtr<SourceBufferList> mSourceBuffers;
nsRefPtr<SourceBufferList> mActiveSourceBuffers;
nsRefPtr<HTMLMediaElement> mElement;
nsString mContentType;
MediaSourceReadyState mReadyState;
};
NS_DEFINE_STATIC_IID_ACCESSOR(MediaSource, MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID)
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_MediaSource_h_ */