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      1 /*
      2  * Copyright (C) 2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebMediaPlayerClientImpl_h
     32 #define WebMediaPlayerClientImpl_h
     33 
     34 #if ENABLE(VIDEO)
     35 
     36 #include "MediaPlayerPrivate.h"
     37 #include "VideoFrameChromium.h"
     38 #include "VideoFrameProvider.h"
     39 #include "VideoLayerChromium.h"
     40 #include "WebMediaPlayerClient.h"
     41 #include <wtf/OwnPtr.h>
     42 
     43 namespace WebKit {
     44 
     45 class WebMediaElement;
     46 class WebMediaPlayer;
     47 
     48 // This class serves as a bridge between WebCore::MediaPlayer and
     49 // WebKit::WebMediaPlayer.
     50 class WebMediaPlayerClientImpl : public WebCore::MediaPlayerPrivateInterface
     51 #if USE(ACCELERATED_COMPOSITING)
     52                                , public WebCore::VideoFrameProvider
     53 #endif
     54                                , public WebMediaPlayerClient {
     55 
     56 public:
     57     static bool isEnabled();
     58     static void setIsEnabled(bool);
     59     static void registerSelf(WebCore::MediaEngineRegistrar);
     60 
     61     static WebMediaPlayerClientImpl* fromMediaElement(const WebMediaElement* element);
     62 
     63     // Returns the encapsulated WebKit::WebMediaPlayer.
     64     WebMediaPlayer* mediaPlayer() const;
     65 
     66     // WebMediaPlayerClient methods:
     67     virtual ~WebMediaPlayerClientImpl();
     68     virtual void networkStateChanged();
     69     virtual void readyStateChanged();
     70     virtual void volumeChanged(float);
     71     virtual void muteChanged(bool);
     72     virtual void timeChanged();
     73     virtual void repaint();
     74     virtual void durationChanged();
     75     virtual void rateChanged();
     76     virtual void sizeChanged();
     77     virtual void sawUnsupportedTracks();
     78     virtual float volume() const;
     79     virtual void playbackStateChanged();
     80     virtual WebMediaPlayer::Preload preload() const;
     81 
     82     // MediaPlayerPrivateInterface methods:
     83     virtual void load(const WTF::String& url);
     84     virtual void cancelLoad();
     85 #if USE(ACCELERATED_COMPOSITING)
     86     virtual WebCore::PlatformLayer* platformLayer() const;
     87 #endif
     88     virtual WebCore::PlatformMedia platformMedia() const;
     89     virtual void play();
     90     virtual void pause();
     91     virtual void prepareToPlay();
     92     virtual bool supportsFullscreen() const;
     93     virtual bool supportsSave() const;
     94     virtual WebCore::IntSize naturalSize() const;
     95     virtual bool hasVideo() const;
     96     virtual bool hasAudio() const;
     97     virtual void setVisible(bool);
     98     virtual float duration() const;
     99     virtual float currentTime() const;
    100     virtual void seek(float time);
    101     virtual bool seeking() const;
    102     virtual void setEndTime(float time);
    103     virtual void setRate(float);
    104     virtual bool paused() const;
    105     virtual void setVolume(float);
    106     virtual WebCore::MediaPlayer::NetworkState networkState() const;
    107     virtual WebCore::MediaPlayer::ReadyState readyState() const;
    108     virtual float maxTimeSeekable() const;
    109     virtual WTF::PassRefPtr<WebCore::TimeRanges> buffered() const;
    110     virtual int dataRate() const;
    111     virtual bool totalBytesKnown() const;
    112     virtual unsigned totalBytes() const;
    113     virtual unsigned bytesLoaded() const;
    114     virtual void setSize(const WebCore::IntSize&);
    115     virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
    116     virtual void paintCurrentFrameInContext(WebCore::GraphicsContext*, const WebCore::IntRect&);
    117     virtual void setPreload(WebCore::MediaPlayer::Preload);
    118     virtual bool hasSingleSecurityOrigin() const;
    119     virtual WebCore::MediaPlayer::MovieLoadType movieLoadType() const;
    120     virtual unsigned decodedFrameCount() const;
    121     virtual unsigned droppedFrameCount() const;
    122     virtual unsigned audioDecodedByteCount() const;
    123     virtual unsigned videoDecodedByteCount() const;
    124 #if USE(ACCELERATED_COMPOSITING)
    125     virtual bool supportsAcceleratedRendering() const;
    126 
    127     // VideoFrameProvider methods:
    128     virtual WebCore::VideoFrameChromium* getCurrentFrame();
    129     virtual void putCurrentFrame(WebCore::VideoFrameChromium*);
    130 #endif
    131 
    132 private:
    133     WebMediaPlayerClientImpl();
    134     void startDelayedLoad();
    135     void loadInternal();
    136 
    137     static WebCore::MediaPlayerPrivateInterface* create(WebCore::MediaPlayer*);
    138     static void getSupportedTypes(WTF::HashSet<WTF::String>&);
    139     static WebCore::MediaPlayer::SupportsType supportsType(
    140         const WTF::String& type, const WTF::String& codecs);
    141 #if USE(ACCELERATED_COMPOSITING)
    142     bool acceleratedRenderingInUse();
    143 #endif
    144 
    145     WebCore::MediaPlayer* m_mediaPlayer;
    146     OwnPtr<WebMediaPlayer> m_webMediaPlayer;
    147     String m_url;
    148     bool m_delayingLoad;
    149     WebCore::MediaPlayer::Preload m_preload;
    150 #if USE(ACCELERATED_COMPOSITING)
    151     RefPtr<WebCore::VideoLayerChromium> m_videoLayer;
    152     bool m_supportsAcceleratedCompositing;
    153 #endif
    154     static bool m_isEnabled;
    155 };
    156 
    157 } // namespace WebKit
    158 
    159 #endif
    160 
    161 #endif
    162