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/*
* Copyright (C) 2007-2018 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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(VIDEO)
#include "AudioTrackPrivate.h"
#include "ContentType.h"
#include "GraphicsTypes3D.h"
#include "LayoutRect.h"
#include "LegacyCDMSession.h"
#include "MediaPlayerEnums.h"
#include "NativeImage.h"
#include "PlatformLayer.h"
#include "PlatformMediaResourceLoader.h"
#include "PlatformMediaSession.h"
#include "SecurityOriginHash.h"
#include "Timer.h"
#include <wtf/URL.h>
#include "VideoTrackPrivate.h"
#include <JavaScriptCore/Uint8Array.h>
#include <wtf/Function.h>
#include <wtf/HashSet.h>
#include <wtf/Logger.h>
#include <wtf/MediaTime.h>
#include <wtf/WallTime.h>
#include <wtf/text/StringHash.h>
#if ENABLE(AVF_CAPTIONS)
#include "PlatformTextTrack.h"
#endif
OBJC_CLASS AVPlayer;
OBJC_CLASS NSArray;
namespace WebCore {
class AudioSourceProvider;
class CDMInstance;
class CachedResourceLoader;
class GraphicsContext3D;
class GraphicsContext;
class InbandTextTrackPrivate;
class LegacyCDMSessionClient;
class MediaPlaybackTarget;
class MediaPlayer;
class MediaPlayerPrivateInterface;
class MediaPlayerRequestInstallMissingPluginsCallback;
class MediaSourcePrivateClient;
class MediaStreamPrivate;
class PlatformTimeRanges;
class TextTrackRepresentation;
struct Cookie;
struct GraphicsDeviceAdapter;
struct MediaPlayerFactory;
struct MediaEngineSupportParameters {
ContentType type;
URL url;
bool isMediaSource { false };
bool isMediaStream { false };
Vector<ContentType> contentTypesRequiringHardwareSupport;
};
struct VideoPlaybackQualityMetrics {
uint32_t totalVideoFrames { 0 };
uint32_t droppedVideoFrames { 0 };
uint32_t corruptedVideoFrames { 0 };
double totalFrameDelay { 0 };
uint32_t displayCompositedVideoFrames { 0 };
};
class MediaPlayerClient {
public:
virtual ~MediaPlayerClient() = default;
// the network state has changed
virtual void mediaPlayerNetworkStateChanged(MediaPlayer*) { }
// the ready state has changed
virtual void mediaPlayerReadyStateChanged(MediaPlayer*) { }
// the volume state has changed
virtual void mediaPlayerVolumeChanged(MediaPlayer*) { }
// the mute state has changed
virtual void mediaPlayerMuteChanged(MediaPlayer*) { }
// time has jumped, eg. not as a result of normal playback
virtual void mediaPlayerTimeChanged(MediaPlayer*) { }
// the media file duration has changed, or is now known
virtual void mediaPlayerDurationChanged(MediaPlayer*) { }
// the playback rate has changed
virtual void mediaPlayerRateChanged(MediaPlayer*) { }
// the play/pause status changed
virtual void mediaPlayerPlaybackStateChanged(MediaPlayer*) { }
// The MediaPlayer has found potentially problematic media content.
// This is used internally to trigger swapping from a <video>
// element to an <embed> in standalone documents
virtual void mediaPlayerSawUnsupportedTracks(MediaPlayer*) { }
// The MediaPlayer could not discover an engine which supports the requested resource.
virtual void mediaPlayerResourceNotSupported(MediaPlayer*) { }
// Presentation-related methods
// a new frame of video is available
virtual void mediaPlayerRepaint(MediaPlayer*) { }
// the movie size has changed
virtual void mediaPlayerSizeChanged(MediaPlayer*) { }
virtual void mediaPlayerEngineUpdated(MediaPlayer*) { }
// The first frame of video is available to render. A media engine need only make this callback if the
// first frame is not available immediately when prepareForRendering is called.
virtual void mediaPlayerFirstVideoFrameAvailable(MediaPlayer*) { }
// A characteristic of the media file, eg. video, audio, closed captions, etc, has changed.
virtual void mediaPlayerCharacteristicChanged(MediaPlayer*) { }
// whether the rendering system can accelerate the display of this MediaPlayer.
virtual bool mediaPlayerRenderingCanBeAccelerated(MediaPlayer*) { return false; }
// called when the media player's rendering mode changed, which indicates a change in the
// availability of the platformLayer().
virtual void mediaPlayerRenderingModeChanged(MediaPlayer*) { }
// whether accelerated compositing is enabled for video rendering
virtual bool mediaPlayerAcceleratedCompositingEnabled() { return false; }
virtual void mediaPlayerActiveSourceBuffersChanged(const MediaPlayer*) { }
#if PLATFORM(WIN) && USE(AVFOUNDATION)
virtual GraphicsDeviceAdapter* mediaPlayerGraphicsDeviceAdapter(const MediaPlayer*) const { return nullptr; }
#endif
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
virtual RefPtr<ArrayBuffer> mediaPlayerCachedKeyForKeyId(const String&) const { return nullptr; }
virtual bool mediaPlayerKeyNeeded(MediaPlayer*, Uint8Array*) { return false; }
virtual String mediaPlayerMediaKeysStorageDirectory() const { return emptyString(); }
#endif
#if ENABLE(ENCRYPTED_MEDIA)
virtual void mediaPlayerInitializationDataEncountered(const String&, RefPtr<ArrayBuffer>&&) { }
virtual void mediaPlayerWaitingForKeyChanged() { }
#endif
#if ENABLE(WIRELESS_PLAYBACK_TARGET)
virtual void mediaPlayerCurrentPlaybackTargetIsWirelessChanged(MediaPlayer*) { };
#endif
virtual String mediaPlayerReferrer() const { return String(); }
virtual String mediaPlayerUserAgent() const { return String(); }
virtual void mediaPlayerEnterFullscreen() { }
virtual void mediaPlayerExitFullscreen() { }
virtual bool mediaPlayerIsFullscreen() const { return false; }
virtual bool mediaPlayerIsFullscreenPermitted() const { return false; }
virtual bool mediaPlayerIsVideo() const { return false; }
virtual LayoutRect mediaPlayerContentBoxRect() const { return LayoutRect(); }
virtual float mediaPlayerContentsScale() const { return 1; }
virtual void mediaPlayerSetSize(const IntSize&) { }
virtual void mediaPlayerPause() { }
virtual void mediaPlayerPlay() { }
virtual bool mediaPlayerPlatformVolumeConfigurationRequired() const { return false; }
virtual bool mediaPlayerIsPaused() const { return true; }
virtual bool mediaPlayerIsLooping() const { return false; }
virtual CachedResourceLoader* mediaPlayerCachedResourceLoader() { return nullptr; }
virtual RefPtr<PlatformMediaResourceLoader> mediaPlayerCreateResourceLoader() { return nullptr; }
virtual bool doesHaveAttribute(const AtomString&, AtomString* = nullptr) const { return false; }
virtual bool mediaPlayerShouldUsePersistentCache() const { return true; }
virtual const String& mediaPlayerMediaCacheDirectory() const { return emptyString(); }
#if ENABLE(VIDEO_TRACK)
virtual void mediaPlayerDidAddAudioTrack(AudioTrackPrivate&) { }
virtual void mediaPlayerDidAddTextTrack(InbandTextTrackPrivate&) { }
virtual void mediaPlayerDidAddVideoTrack(VideoTrackPrivate&) { }
virtual void mediaPlayerDidRemoveAudioTrack(AudioTrackPrivate&) { }
virtual void mediaPlayerDidRemoveTextTrack(InbandTextTrackPrivate&) { }
virtual void mediaPlayerDidRemoveVideoTrack(VideoTrackPrivate&) { }
virtual void textTrackRepresentationBoundsChanged(const IntRect&) { }
#endif
#if ENABLE(VIDEO_TRACK) && ENABLE(AVF_CAPTIONS)
virtual Vector<RefPtr<PlatformTextTrack>> outOfBandTrackSources() { return { }; }
#endif
#if PLATFORM(IOS_FAMILY)
virtual String mediaPlayerNetworkInterfaceName() const { return String(); }
virtual bool mediaPlayerGetRawCookies(const URL&, Vector<Cookie>&) const { return false; }
#endif
virtual void mediaPlayerHandlePlaybackCommand(PlatformMediaSession::RemoteControlCommandType) { }
virtual String mediaPlayerSourceApplicationIdentifier() const { return emptyString(); }
virtual bool mediaPlayerIsInMediaDocument() const { return false; }
virtual void mediaPlayerEngineFailedToLoad() const { }
virtual double mediaPlayerRequestedPlaybackRate() const { return 0; }
virtual MediaPlayerEnums::VideoFullscreenMode mediaPlayerFullscreenMode() const { return MediaPlayerEnums::VideoFullscreenModeNone; }
virtual bool mediaPlayerIsVideoFullscreenStandby() const { return false; }
virtual Vector<String> mediaPlayerPreferredAudioCharacteristics() const { return Vector<String>(); }
#if USE(GSTREAMER)
virtual void requestInstallMissingPlugins(const String&, const String&, MediaPlayerRequestInstallMissingPluginsCallback&) { };
#endif
virtual bool mediaPlayerShouldDisableSleep() const { return false; }
virtual const Vector<ContentType>& mediaContentTypesRequiringHardwareSupport() const;
virtual bool mediaPlayerShouldCheckHardwareSupport() const { return false; }
#if !RELEASE_LOG_DISABLED
virtual const void* mediaPlayerLogIdentifier() { return nullptr; }
virtual const Logger& mediaPlayerLogger() = 0;
#endif
};
class MediaPlayer : public MediaPlayerEnums, public RefCounted<MediaPlayer> {
WTF_MAKE_NONCOPYABLE(MediaPlayer); WTF_MAKE_FAST_ALLOCATED;
public:
static Ref<MediaPlayer> create(MediaPlayerClient&);
virtual ~MediaPlayer();
void invalidate();
// Media engine support.
using MediaPlayerEnums::SupportsType;
static SupportsType supportsType(const MediaEngineSupportParameters&);
static void getSupportedTypes(HashSet<String, ASCIICaseInsensitiveHash>&);
static bool isAvailable();
static HashSet<RefPtr<SecurityOrigin>> originsInMediaCache(const String& path);
static void clearMediaCache(const String& path, WallTime modifiedSince);
static void clearMediaCacheForOrigins(const String& path, const HashSet<RefPtr<SecurityOrigin>>&);
static bool supportsKeySystem(const String& keySystem, const String& mimeType);
bool supportsPictureInPicture() const;
bool supportsFullscreen() const;
bool supportsScanning() const;
bool canSaveMediaData() const;
bool requiresImmediateCompositing() const;
bool doesHaveAttribute(const AtomString&, AtomString* value = nullptr) const;
PlatformLayer* platformLayer() const;
#if PLATFORM(IOS_FAMILY) || (PLATFORM(MAC) && ENABLE(VIDEO_PRESENTATION_MODE))
void setVideoFullscreenLayer(PlatformLayer*, WTF::Function<void()>&& completionHandler = [] { });
void setVideoFullscreenFrame(FloatRect);
void updateVideoFullscreenInlineImage();
using MediaPlayerEnums::VideoGravity;
void setVideoFullscreenGravity(VideoGravity);
void setVideoFullscreenMode(VideoFullscreenMode);
VideoFullscreenMode fullscreenMode() const;
void videoFullscreenStandbyChanged();
bool isVideoFullscreenStandby() const;
#endif
#if PLATFORM(IOS_FAMILY)
NSArray *timedMetadata() const;
String accessLog() const;
String errorLog() const;
#endif
FloatSize naturalSize();
bool hasVideo() const;
bool hasAudio() const;
bool inMediaDocument() const;
IntSize size() const { return m_size; }
void setSize(const IntSize& size);
bool load(const URL&, const ContentType&, const String& keySystem);
#if ENABLE(MEDIA_SOURCE)
bool load(const URL&, const ContentType&, MediaSourcePrivateClient*);
#endif
#if ENABLE(MEDIA_STREAM)
bool load(MediaStreamPrivate&);
#endif
void cancelLoad();
bool visible() const;
void setVisible(bool);
void prepareToPlay();
void play();
void pause();
using MediaPlayerEnums::BufferingPolicy;
void setBufferingPolicy(BufferingPolicy);
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
// Represents synchronous exceptions that can be thrown from the Encrypted Media methods.
// This is different from the asynchronous MediaKeyError.
enum MediaKeyException { NoError, InvalidPlayerState, KeySystemNotSupported };
std::unique_ptr<LegacyCDMSession> createSession(const String& keySystem, LegacyCDMSessionClient*);
void setCDMSession(LegacyCDMSession*);
void keyAdded();
#endif
#if ENABLE(ENCRYPTED_MEDIA)
void cdmInstanceAttached(CDMInstance&);
void cdmInstanceDetached(CDMInstance&);
void attemptToDecryptWithInstance(CDMInstance&);
#endif
bool paused() const;
bool seeking() const;
static double invalidTime() { return -1.0;}
MediaTime duration() const;
MediaTime currentTime() const;
void seek(const MediaTime&);
void seekWithTolerance(const MediaTime&, const MediaTime& negativeTolerance, const MediaTime& positiveTolerance);
MediaTime startTime() const;
MediaTime initialTime() const;
MediaTime getStartDate() const;
double rate() const;
void setRate(double);
double requestedRate() const;
bool preservesPitch() const;
void setPreservesPitch(bool);
std::unique_ptr<PlatformTimeRanges> buffered();
std::unique_ptr<PlatformTimeRanges> seekable();
MediaTime minTimeSeekable();
MediaTime maxTimeSeekable();
double seekableTimeRangesLastModifiedTime();
double liveUpdateInterval();
bool didLoadingProgress();
double volume() const;
void setVolume(double);
bool platformVolumeConfigurationRequired() const { return client().mediaPlayerPlatformVolumeConfigurationRequired(); }
bool muted() const;
void setMuted(bool);
bool hasClosedCaptions() const;
void setClosedCaptionsVisible(bool closedCaptionsVisible);
void paint(GraphicsContext&, const FloatRect&);
void paintCurrentFrameInContext(GraphicsContext&, const FloatRect&);
// copyVideoTextureToPlatformTexture() is used to do the GPU-GPU textures copy without a readback to system memory.
// The first five parameters denote the corresponding GraphicsContext, destination texture, requested level, requested type and the required internalFormat for destination texture.
// The last two parameters premultiplyAlpha and flipY denote whether addtional premultiplyAlpha and flip operation are required during the copy.
// It returns true on success and false on failure.
// In the GPU-GPU textures copy, the source texture(Video texture) should have valid target, internalFormat and size, etc.
// The destination texture may need to be resized to to the dimensions of the source texture or re-defined to the required internalFormat.
// The current restrictions require that format shoud be RGB or RGBA, type should be UNSIGNED_BYTE and level should be 0. It may be lifted in the future.
bool copyVideoTextureToPlatformTexture(GraphicsContext3D*, Platform3DObject texture, GC3Denum target, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY);
NativeImagePtr nativeImageForCurrentTime();
using MediaPlayerEnums::NetworkState;
NetworkState networkState();
using MediaPlayerEnums::ReadyState;
ReadyState readyState();
using MediaPlayerEnums::MovieLoadType;
MovieLoadType movieLoadType() const;
using MediaPlayerEnums::Preload;
Preload preload() const;
void setPreload(Preload);
void networkStateChanged();
void readyStateChanged();
void volumeChanged(double);
void muteChanged(bool);
void timeChanged();
void sizeChanged();
void rateChanged();
void playbackStateChanged();
void durationChanged();
void firstVideoFrameAvailable();
void characteristicChanged();
void repaint();
MediaPlayerClient& client() const { return *m_client; }
bool hasAvailableVideoFrame() const;
void prepareForRendering();
bool canLoadPoster() const;
void setPoster(const String&);
#if USE(NATIVE_FULLSCREEN_VIDEO)
void enterFullscreen();
void exitFullscreen();
#endif
#if ENABLE(WIRELESS_PLAYBACK_TARGET)
enum WirelessPlaybackTargetType { TargetTypeNone, TargetTypeAirPlay, TargetTypeTVOut };
WirelessPlaybackTargetType wirelessPlaybackTargetType() const;
String wirelessPlaybackTargetName() const;
bool wirelessVideoPlaybackDisabled() const;
void setWirelessVideoPlaybackDisabled(bool);
void currentPlaybackTargetIsWirelessChanged();
void playbackTargetAvailabilityChanged();
bool isCurrentPlaybackTargetWireless() const;
bool canPlayToWirelessPlaybackTarget() const;
void setWirelessPlaybackTarget(Ref<MediaPlaybackTarget>&&);
void setShouldPlayToPlaybackTarget(bool);
#endif
double minFastReverseRate() const;
double maxFastForwardRate() const;
#if USE(NATIVE_FULLSCREEN_VIDEO)
bool canEnterFullscreen() const;
#endif
// whether accelerated rendering is supported by the media engine for the current media.
bool supportsAcceleratedRendering() const;
// called when the rendering system flips the into or out of accelerated rendering mode.
void acceleratedRenderingStateChanged();
bool shouldMaintainAspectRatio() const;
void setShouldMaintainAspectRatio(bool);
#if PLATFORM(WIN) && USE(AVFOUNDATION)
GraphicsDeviceAdapter* graphicsDeviceAdapter() const;
#endif
bool hasSingleSecurityOrigin() const;
bool didPassCORSAccessCheck() const;
bool wouldTaintOrigin(const SecurityOrigin&) const;
MediaTime mediaTimeForTimeValue(const MediaTime&) const;
double maximumDurationToCacheMediaTime() const;
unsigned decodedFrameCount() const;
unsigned droppedFrameCount() const;
unsigned audioDecodedByteCount() const;
unsigned videoDecodedByteCount() const;
void setPrivateBrowsingMode(bool);
#if ENABLE(WEB_AUDIO)
AudioSourceProvider* audioSourceProvider();
#endif
#if ENABLE(LEGACY_ENCRYPTED_MEDIA)
RefPtr<ArrayBuffer> cachedKeyForKeyId(const String& keyId) const;
bool keyNeeded(Uint8Array* initData);
String mediaKeysStorageDirectory() const;
#endif
#if ENABLE(ENCRYPTED_MEDIA)
void initializationDataEncountered(const String&, RefPtr<ArrayBuffer>&&);
void waitingForKeyChanged();
bool waitingForKey() const;
#endif
String referrer() const;
String userAgent() const;
String engineDescription() const;
long platformErrorCode() const;
CachedResourceLoader* cachedResourceLoader();
RefPtr<PlatformMediaResourceLoader> createResourceLoader();
#if ENABLE(VIDEO_TRACK)
void addAudioTrack(AudioTrackPrivate&);
void addTextTrack(InbandTextTrackPrivate&);
void addVideoTrack(VideoTrackPrivate&);
void removeAudioTrack(AudioTrackPrivate&);
void removeTextTrack(InbandTextTrackPrivate&);
void removeVideoTrack(VideoTrackPrivate&);
bool requiresTextTrackRepresentation() const;
void setTextTrackRepresentation(TextTrackRepresentation*);
void syncTextTrackBounds();
void tracksChanged();
#endif
#if ENABLE(VIDEO_TRACK) && ENABLE(AVF_CAPTIONS)
void notifyTrackModeChanged();
Vector<RefPtr<PlatformTextTrack>> outOfBandTrackSources();
#endif
#if PLATFORM(IOS_FAMILY)
String mediaPlayerNetworkInterfaceName() const;
bool getRawCookies(const URL&, Vector<Cookie>&) const;
#endif
static void resetMediaEngines();
#if USE(GSTREAMER)
WEBCORE_EXPORT void simulateAudioInterruption();
#endif
WEBCORE_EXPORT void beginSimulatedHDCPError();
WEBCORE_EXPORT void endSimulatedHDCPError();
String languageOfPrimaryAudioTrack() const;
size_t extraMemoryCost() const;
unsigned long long fileSize() const;
Optional<VideoPlaybackQualityMetrics> videoPlaybackQualityMetrics();
void handlePlaybackCommand(PlatformMediaSession::RemoteControlCommandType);
String sourceApplicationIdentifier() const;
Vector<String> preferredAudioCharacteristics() const;
bool ended() const;
void setShouldDisableSleep(bool);
bool shouldDisableSleep() const;
String contentMIMEType() const { return m_contentType.containerType(); }
String contentTypeCodecs() const { return m_contentType.parameter(ContentType::codecsParameter()); }
bool contentMIMETypeWasInferredFromExtension() const { return m_contentMIMETypeWasInferredFromExtension; }
const Vector<ContentType>& mediaContentTypesRequiringHardwareSupport() const;
bool shouldCheckHardwareSupport() const;
#if !RELEASE_LOG_DISABLED
const Logger& mediaPlayerLogger();
const void* mediaPlayerLogIdentifier() { return client().mediaPlayerLogIdentifier(); }
#endif
void applicationWillResignActive();
void applicationDidBecomeActive();
#if USE(AVFOUNDATION)
WEBCORE_EXPORT AVPlayer *objCAVFoundationAVPlayer() const;
#endif
bool performTaskAtMediaTime(WTF::Function<void()>&&, MediaTime);
bool shouldIgnoreIntrinsicSize();
private:
MediaPlayer(MediaPlayerClient&);
const MediaPlayerFactory* nextBestMediaEngine(const MediaPlayerFactory*) const;
void loadWithNextMediaEngine(const MediaPlayerFactory*);
void reloadTimerFired();
MediaPlayerClient* m_client;
Timer m_reloadTimer;
std::unique_ptr<MediaPlayerPrivateInterface> m_private;
const MediaPlayerFactory* m_currentMediaEngine { nullptr };
URL m_url;
ContentType m_contentType;
String m_keySystem;
IntSize m_size;
Preload m_preload { Auto };
double m_volume { 1 };
bool m_visible { false };
bool m_muted { false };
bool m_preservesPitch { true };
bool m_privateBrowsing { false };
bool m_shouldPrepareToRender { false };
bool m_contentMIMETypeWasInferredFromExtension { false };
bool m_initializingMediaEngine { false };
#if ENABLE(MEDIA_SOURCE)
RefPtr<MediaSourcePrivateClient> m_mediaSource;
#endif
#if ENABLE(MEDIA_STREAM)
RefPtr<MediaStreamPrivate> m_mediaStream;
#endif
};
using CreateMediaEnginePlayer = WTF::Function<std::unique_ptr<MediaPlayerPrivateInterface> (MediaPlayer*)>;
typedef void (*MediaEngineSupportedTypes)(HashSet<String, ASCIICaseInsensitiveHash>& types);
typedef MediaPlayer::SupportsType (*MediaEngineSupportsType)(const MediaEngineSupportParameters& parameters);
typedef HashSet<RefPtr<SecurityOrigin>> (*MediaEngineOriginsInMediaCache)(const String& path);
typedef void (*MediaEngineClearMediaCache)(const String& path, WallTime modifiedSince);
typedef void (*MediaEngineClearMediaCacheForOrigins)(const String& path, const HashSet<RefPtr<SecurityOrigin>>&);
typedef bool (*MediaEngineSupportsKeySystem)(const String& keySystem, const String& mimeType);
typedef void (*MediaEngineRegistrar)(CreateMediaEnginePlayer&&, MediaEngineSupportedTypes, MediaEngineSupportsType,
MediaEngineOriginsInMediaCache, MediaEngineClearMediaCache, MediaEngineClearMediaCacheForOrigins, MediaEngineSupportsKeySystem);
typedef void (*MediaEngineRegister)(MediaEngineRegistrar);
class MediaPlayerFactorySupport {
public:
WEBCORE_EXPORT static void callRegisterMediaEngine(MediaEngineRegister);
};
} // namespace WebCore
#endif // ENABLE(VIDEO)