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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