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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef MediaSource_h
#define MediaSource_h
#include "core/dom/ActiveDOMObject.h"
#include "core/events/EventTarget.h"
#include "core/html/HTMLMediaSource.h"
#include "core/html/URLRegistry.h"
#include "modules/mediasource/SourceBuffer.h"
#include "modules/mediasource/SourceBufferList.h"
#include "public/platform/WebMediaSource.h"
#include "wtf/PassOwnPtr.h"
#include "wtf/Vector.h"
namespace blink {
class ExceptionState;
class GenericEventQueue;
class WebSourceBuffer;
class MediaSource final
: public RefCountedGarbageCollectedEventTargetWithInlineData<MediaSource>
, public HTMLMediaSource
, public ActiveDOMObject {
DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<MediaSource>);
DEFINE_WRAPPERTYPEINFO();
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaSource);
public:
static const AtomicString& openKeyword();
static const AtomicString& closedKeyword();
static const AtomicString& endedKeyword();
static MediaSource* create(ExecutionContext*);
virtual ~MediaSource();
// MediaSource.idl methods
SourceBufferList* sourceBuffers() { return m_sourceBuffers.get(); }
SourceBufferList* activeSourceBuffers() { return m_activeSourceBuffers.get(); }
SourceBuffer* addSourceBuffer(const String& type, ExceptionState&);
void removeSourceBuffer(SourceBuffer*, ExceptionState&);
void setDuration(double, ExceptionState&);
const AtomicString& readyState() const { return m_readyState; }
void endOfStream(const AtomicString& error, ExceptionState&);
void endOfStream(ExceptionState&);
static bool isTypeSupported(const String& type);
// HTMLMediaSource
virtual bool attachToElement(HTMLMediaElement*) override;
virtual void setWebMediaSourceAndOpen(PassOwnPtr<WebMediaSource>) override;
virtual void close() override;
virtual bool isClosed() const override;
virtual double duration() const override;
virtual PassRefPtrWillBeRawPtr<TimeRanges> buffered() const override;
virtual PassRefPtrWillBeRawPtr<TimeRanges> seekable() const override;
#if !ENABLE(OILPAN)
virtual void refHTMLMediaSource() override { ref(); }
virtual void derefHTMLMediaSource() override { deref(); }
#endif
// EventTarget interface
virtual const AtomicString& interfaceName() const override;
virtual ExecutionContext* executionContext() const override;
// ActiveDOMObject interface
virtual bool hasPendingActivity() const override;
virtual void stop() override;
// URLRegistrable interface
virtual URLRegistry& registry() const override;
// Used by SourceBuffer.
void openIfInEndedState();
bool isOpen() const;
void setSourceBufferActive(SourceBuffer*);
// Used by MediaSourceRegistry.
void addedToRegistry();
void removedFromRegistry();
virtual void trace(Visitor*) override;
void clearWeakMembers(Visitor*);
private:
explicit MediaSource(ExecutionContext*);
void setReadyState(const AtomicString&);
void onReadyStateChange(const AtomicString&, const AtomicString&);
bool isUpdating() const;
PassOwnPtr<WebSourceBuffer> createWebSourceBuffer(const String& type, const Vector<String>& codecs, ExceptionState&);
void scheduleEvent(const AtomicString& eventName);
void endOfStreamInternal(const WebMediaSource::EndOfStreamStatus, ExceptionState&);
// Implements the duration change algorithm.
// https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#duration-change-algorithm
void durationChangeAlgorithm(double newDuration);
OwnPtr<WebMediaSource> m_webMediaSource;
AtomicString m_readyState;
OwnPtrWillBeMember<GenericEventQueue> m_asyncEventQueue;
RawPtrWillBeWeakMember<HTMLMediaElement> m_attachedElement;
Member<SourceBufferList> m_sourceBuffers;
Member<SourceBufferList> m_activeSourceBuffers;
bool m_isAddedToRegistry;
};
} // namespace blink
#endif // MediaSource_h
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