gecko/content/media/mediasource/MediaSource.h

128 lines
3.8 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 "MediaSourceDecoder.h"
#include "js/RootingAPI.h"
#include "mozilla/Assertions.h"
#include "mozilla/Attributes.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/MediaSourceBinding.h"
#include "mozilla/Monitor.h"
#include "nsAutoPtr.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionNoteChild.h"
#include "nsCycleCollectionParticipant.h"
#include "nsID.h"
#include "nsISupports.h"
#include "nscore.h"
struct JSContext;
class JSObject;
class nsPIDOMWindow;
namespace mozilla {
class ErrorResult;
template <typename T> class AsyncEventRunner;
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 MOZ_FINAL : public DOMEventTargetHelper
{
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&, const nsAString& aType);
/** 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)
nsPIDOMWindow* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx) MOZ_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;
}
// Called by SourceBuffers to notify this MediaSource that data has
// been evicted from the buffered data. The start and end times
// that were evicted are provided.
void NotifyEvicted(double aStart, double aEnd);
// Block thread waiting for data to be appended to a SourceBuffer.
void WaitForData();
// Unblock threads waiting for data to be appended to a SourceBuffer.
void NotifyGotData();
private:
explicit MediaSource(nsPIDOMWindow* aWindow);
friend class AsyncEventRunner<MediaSource>;
void DispatchSimpleEvent(const char* aName);
void QueueAsyncSimpleEvent(const char* aName);
void DurationChange(double aNewDuration, ErrorResult& aRv);
double mDuration;
nsRefPtr<SourceBufferList> mSourceBuffers;
nsRefPtr<SourceBufferList> mActiveSourceBuffers;
nsRefPtr<MediaSourceDecoder> mDecoder;
MediaSourceReadyState mReadyState;
// Monitor for waiting for when new data is appended to
// a Source Buffer.
Monitor mWaitForDataMonitor;
};
NS_DEFINE_STATIC_IID_ACCESSOR(MediaSource, MOZILLA_DOM_MEDIASOURCE_IMPLEMENTATION_IID)
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_MediaSource_h_ */