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/*
* Copyright (C) 2007 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 COMPUTER, 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 COMPUTER, 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.
*/
#ifndef MediaPlayer_h
#define MediaPlayer_h
#if ENABLE(VIDEO)
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
#include "MediaPlayerProxy.h"
#endif
#include "IntRect.h"
#include "StringHash.h"
#include <wtf/HashSet.h>
#include <wtf/OwnPtr.h>
#include <wtf/Noncopyable.h>
namespace WebCore {
class ContentType;
class FrameView;
class GraphicsContext;
class IntRect;
class IntSize;
class MediaPlayer;
class MediaPlayerPrivateInterface;
class String;
#if USE(ACCELERATED_COMPOSITING)
class GraphicsLayer;
#endif
class MediaPlayerClient {
public:
virtual ~MediaPlayerClient() { }
// the network state has changed
virtual void mediaPlayerNetworkStateChanged(MediaPlayer*) { }
// the ready state has changed
virtual void mediaPlayerReadyStateChanged(MediaPlayer*) { }
// the volume or muted state has changed
virtual void mediaPlayerVolumeChanged(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 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*) { }
// Presentation-related methods
// a new frame of video is available
virtual void mediaPlayerRepaint(MediaPlayer*) { }
// the movie size has changed
virtual void mediaPlayerSizeChanged(MediaPlayer*) { }
#if USE(ACCELERATED_COMPOSITING)
// whether the rendering system can accelerate the display of this MediaPlayer.
virtual bool mediaPlayerRenderingCanBeAccelerated(MediaPlayer*) { return false; }
// return the GraphicsLayer that will host the presentation for this MediaPlayer.
virtual GraphicsLayer* mediaPlayerGraphicsLayer(MediaPlayer*) { return 0; }
#endif
};
class MediaPlayer : public Noncopyable {
public:
MediaPlayer(MediaPlayerClient*);
virtual ~MediaPlayer();
// media engine support
enum SupportsType { IsNotSupported, IsSupported, MayBeSupported };
static MediaPlayer::SupportsType supportsType(ContentType contentType);
static void getSupportedTypes(HashSet<String>&);
static bool isAvailable();
bool supportsFullscreen() const;
bool supportsSave() const;
IntSize naturalSize();
bool hasVideo();
void setFrameView(FrameView* frameView) { m_frameView = frameView; }
FrameView* frameView() { return m_frameView; }
bool inMediaDocument();
IntSize size() const { return m_size; }
void setSize(const IntSize& size);
void load(const String& url, const ContentType& contentType);
void cancelLoad();
bool visible() const;
void setVisible(bool);
void play();
void pause();
bool paused() const;
bool seeking() const;
float duration() const;
float currentTime() const;
void seek(float time);
float startTime() const;
void setEndTime(float time);
float rate() const;
void setRate(float);
bool preservesPitch() const;
void setPreservesPitch(bool);
float maxTimeBuffered();
float maxTimeSeekable();
unsigned bytesLoaded();
bool totalBytesKnown();
unsigned totalBytes();
float volume() const;
void setVolume(float);
int dataRate() const;
bool autobuffer() const;
void setAutobuffer(bool);
void paint(GraphicsContext*, const IntRect&);
void paintCurrentFrameInContext(GraphicsContext*, const IntRect&);
enum NetworkState { Empty, Idle, Loading, Loaded, FormatError, NetworkError, DecodeError };
NetworkState networkState();
enum ReadyState { HaveNothing, HaveMetadata, HaveCurrentData, HaveFutureData, HaveEnoughData };
ReadyState readyState();
enum MovieLoadType { Unknown, Download, StoredStream, LiveStream };
MovieLoadType movieLoadType() const;
void networkStateChanged();
void readyStateChanged();
void volumeChanged();
void timeChanged();
void sizeChanged();
void rateChanged();
void durationChanged();
void repaint();
MediaPlayerClient* mediaPlayerClient() const { return m_mediaPlayerClient; }
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
void setPoster(const String& url);
void deliverNotification(MediaPlayerProxyNotificationType notification);
void setMediaPlayerProxy(WebMediaPlayerProxy* proxy);
#endif
#if USE(ACCELERATED_COMPOSITING)
// 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();
#endif
bool hasSingleSecurityOrigin() const;
private:
static void initializeMediaEngines();
MediaPlayerClient* m_mediaPlayerClient;
OwnPtr<MediaPlayerPrivateInterface*> m_private;
void* m_currentMediaEngine;
FrameView* m_frameView;
IntSize m_size;
bool m_visible;
float m_rate;
float m_volume;
bool m_preservesPitch;
bool m_autobuffer;
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
WebMediaPlayerProxy* m_playerProxy; // not owned or used, passed to m_private
#endif
};
typedef MediaPlayerPrivateInterface* (*CreateMediaEnginePlayer)(MediaPlayer*);
typedef void (*MediaEngineSupportedTypes)(HashSet<String>& types);
typedef MediaPlayer::SupportsType (*MediaEngineSupportsType)(const String& type, const String& codecs);
typedef void (*MediaEngineRegistrar)(CreateMediaEnginePlayer, MediaEngineSupportedTypes, MediaEngineSupportsType);
}
#endif // ENABLE(VIDEO)
#endif
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