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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.
*/
#pragma once
#if ENABLE(MEDIA_SOURCE)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include "HTMLMediaElement.h"
#include "MediaSourcePrivateClient.h"
#include "URLRegistry.h"
#include <wtf/LoggerHelper.h>
#include <wtf/RefCounted.h>
#include <wtf/UniqueRef.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class ContentType;
class SourceBuffer;
class SourceBufferList;
class SourceBufferPrivate;
class TimeRanges;
class MediaSource
: public RefCounted<MediaSource>
, public MediaSourcePrivateClient
, public ActiveDOMObject
, public EventTarget
, public URLRegistrable
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
{
WTF_MAKE_ISO_ALLOCATED(MediaSource);
public:
static void setRegistry(URLRegistry*);
static MediaSource* lookup(const String& url) { return s_registry ? static_cast<MediaSource*>(s_registry->lookup(url)) : nullptr; }
static Ref<MediaSource> create(ScriptExecutionContext&);
virtual ~MediaSource();
void addedToRegistry();
void removedFromRegistry();
void openIfInEndedState();
void openIfDeferredOpen();
virtual bool isOpen() const;
bool isClosed() const;
bool isEnded() const;
void sourceBufferDidChangeActiveState(SourceBuffer&, bool);
enum class EndOfStreamError { Network, Decode };
void streamEndedWithError(std::optional<EndOfStreamError>);
MediaTime duration() const final;
const PlatformTimeRanges& buffered() const final;
bool attachToElement(HTMLMediaElement&);
void detachFromElement(HTMLMediaElement&);
void monitorSourceBuffers() override;
bool isSeeking() const { return m_pendingSeekTime.isValid(); }
Ref<TimeRanges> seekable();
ExceptionOr<void> setLiveSeekableRange(double start, double end);
ExceptionOr<void> clearLiveSeekableRange();
ExceptionOr<void> setDuration(double);
ExceptionOr<void> setDurationInternal(const MediaTime&);
MediaTime currentTime() const;
enum class ReadyState { Closed, Open, Ended };
ReadyState readyState() const;
ExceptionOr<void> endOfStream(std::optional<EndOfStreamError>);
HTMLMediaElement* mediaElement() const { return m_mediaElement.get(); }
SourceBufferList* sourceBuffers() { return m_sourceBuffers.get(); }
SourceBufferList* activeSourceBuffers() { return m_activeSourceBuffers.get(); }
ExceptionOr<Ref<SourceBuffer>> addSourceBuffer(const String& type);
ExceptionOr<void> removeSourceBuffer(SourceBuffer&);
static bool isTypeSupported(ScriptExecutionContext&, const String& type);
ScriptExecutionContext* scriptExecutionContext() const final;
void sourceBufferBufferedChanged();
using RefCounted::ref;
using RefCounted::deref;
static const MediaTime& currentTimeFudgeFactor();
static bool contentTypeShouldGenerateTimestamps(const ContentType&);
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_logger.get(); }
const void* logIdentifier() const final { return m_logIdentifier; }
const char* logClassName() const final { return "MediaSource"; }
WTFLogChannel& logChannel() const final;
void setLogIdentifier(const void*) final;
#endif
void failedToCreateRenderer(RendererType) final;
#if ENABLE(MANAGED_MEDIA_SOURCE)
virtual bool isManaged() const { return false; }
void memoryPressure();
#endif
void setAsSrcObject(bool);
protected:
explicit MediaSource(ScriptExecutionContext&);
bool hasBufferedTime(const MediaTime&);
bool hasCurrentTime();
bool hasFutureTime();
void scheduleEvent(const AtomString& eventName);
void notifyElementUpdateMediaState() const;
RefPtr<MediaSourcePrivate> m_private;
private:
// ActiveDOMObject.
void stop() final;
const char* activeDOMObjectName() const final;
bool virtualHasPendingActivity() const final;
static bool isTypeSupported(ScriptExecutionContext&, const String& type, Vector<ContentType>&& contentTypesRequiringHardwareSupport);
void setPrivateAndOpen(Ref<MediaSourcePrivate>&&) final;
void seekToTime(const MediaTime&) final;
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
EventTargetInterface eventTargetInterface() const final;
URLRegistry& registry() const final;
void setReadyState(ReadyState);
void onReadyStateChange(ReadyState oldState, ReadyState newState);
Vector<PlatformTimeRanges> activeRanges() const;
ExceptionOr<Ref<SourceBufferPrivate>> createSourceBufferPrivate(const ContentType&);
void regenerateActiveSourceBuffers();
void updateBufferedIfNeeded(bool forced = false);
void completeSeek();
static URLRegistry* s_registry;
RefPtr<SourceBufferList> m_sourceBuffers;
RefPtr<SourceBufferList> m_activeSourceBuffers;
PlatformTimeRanges m_buffered;
PlatformTimeRanges m_liveSeekable;
WeakPtr<HTMLMediaElement, WeakPtrImplWithEventTargetData> m_mediaElement;
MediaTime m_duration;
MediaTime m_pendingSeekTime;
ReadyState m_readyState { ReadyState::Closed };
bool m_openDeferred { false };
bool m_sourceopenPending { false };
#if !RELEASE_LOG_DISABLED
Ref<const Logger> m_logger;
const void* m_logIdentifier { nullptr };
#endif
uint64_t m_associatedRegistryCount { 0 };
};
String convertEnumerationToString(MediaSource::EndOfStreamError);
String convertEnumerationToString(MediaSource::ReadyState);
} // namespace WebCore
namespace WTF {
template<typename Type>
struct LogArgument;
template <>
struct LogArgument<WebCore::MediaSource::EndOfStreamError> {
static String toString(const WebCore::MediaSource::EndOfStreamError error)
{
return convertEnumerationToString(error);
}
};
template <>
struct LogArgument<WebCore::MediaSource::ReadyState> {
static String toString(const WebCore::MediaSource::ReadyState state)
{
return convertEnumerationToString(state);
}
};
} // namespace WTF
#endif
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