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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 WebMediaPlayer_h | |
32 #define WebMediaPlayer_h | |
33 | |
34 #include "../platform/WebCanvas.h" | |
35 #include "../platform/WebString.h" | |
36 #include "WebTimeRange.h" | |
37 | |
38 namespace WebKit { | |
39 | |
40 class WebAudioSourceProvider; | |
41 class WebAudioSourceProviderClient; | |
42 class WebMediaPlayerClient; | |
43 class WebMediaSource; | |
44 class WebString; | |
45 class WebURL; | |
46 struct WebRect; | |
47 struct WebSize; | |
48 class WebGraphicsContext3D; | |
49 | |
50 class WebMediaPlayer { | |
51 public: | |
52 enum NetworkState { | |
53 NetworkStateEmpty, | |
54 NetworkStateIdle, | |
55 NetworkStateLoading, | |
56 NetworkStateLoaded, | |
57 NetworkStateFormatError, | |
58 NetworkStateNetworkError, | |
59 NetworkStateDecodeError, | |
60 }; | |
61 | |
62 enum ReadyState { | |
63 ReadyStateHaveNothing, | |
64 ReadyStateHaveMetadata, | |
65 ReadyStateHaveCurrentData, | |
66 ReadyStateHaveFutureData, | |
67 ReadyStateHaveEnoughData, | |
68 }; | |
69 | |
70 enum Preload { | |
71 PreloadNone, | |
72 PreloadMetaData, | |
73 PreloadAuto, | |
74 }; | |
75 | |
76 // Represents synchronous exceptions that can be thrown from the Encrypted | |
77 // Media methods. This is different from the asynchronous MediaKeyError. | |
78 enum MediaKeyException { | |
79 MediaKeyExceptionNoError, | |
80 MediaKeyExceptionInvalidPlayerState, | |
81 MediaKeyExceptionKeySystemNotSupported, | |
82 }; | |
83 | |
84 enum CORSMode { | |
85 CORSModeUnspecified, | |
86 CORSModeAnonymous, | |
87 CORSModeUseCredentials, | |
88 }; | |
89 | |
90 virtual ~WebMediaPlayer() {} | |
91 | |
92 virtual void load(const WebURL&, CORSMode) = 0; | |
93 virtual void load(const WebURL&, WebMediaSource*, CORSMode) = 0; | |
94 | |
95 // Playback controls. | |
96 virtual void play() = 0; | |
97 virtual void pause() = 0; | |
98 virtual bool supportsFullscreen() const = 0; | |
99 virtual bool supportsSave() const = 0; | |
100 virtual void seek(double seconds) = 0; | |
101 virtual void setRate(double rate) = 0; | |
102 virtual void setVolume(double volume) = 0; | |
103 virtual void setPreload(Preload) { }; | |
104 virtual const WebTimeRanges& buffered() = 0; | |
105 virtual double maxTimeSeekable() const = 0; | |
106 | |
107 virtual void paint(WebCanvas*, const WebRect&, unsigned char alpha) = 0; | |
108 | |
109 // True if the loaded media has a playable video/audio track. | |
110 virtual bool hasVideo() const = 0; | |
111 virtual bool hasAudio() const = 0; | |
112 | |
113 // Dimension of the video. | |
114 virtual WebSize naturalSize() const = 0; | |
115 | |
116 // Getters of playback state. | |
117 virtual bool paused() const = 0; | |
118 virtual bool seeking() const = 0; | |
119 virtual double duration() const = 0; | |
120 virtual double currentTime() const = 0; | |
121 | |
122 // Internal states of loading and network. | |
123 virtual NetworkState networkState() const = 0; | |
124 virtual ReadyState readyState() const = 0; | |
125 | |
126 virtual bool didLoadingProgress() const = 0; | |
127 | |
128 virtual bool hasSingleSecurityOrigin() const = 0; | |
129 virtual bool didPassCORSAccessCheck() const = 0; | |
130 | |
131 virtual double mediaTimeForTimeValue(double timeValue) const = 0; | |
132 | |
133 virtual unsigned decodedFrameCount() const = 0; | |
134 virtual unsigned droppedFrameCount() const = 0; | |
135 virtual unsigned audioDecodedByteCount() const = 0; | |
136 virtual unsigned videoDecodedByteCount() const = 0; | |
137 | |
138 // Do a GPU-GPU textures copy if possible. | |
139 virtual bool copyVideoTextureToPlatformTexture(WebGraphicsContext3D*, unsign
ed texture, unsigned level, unsigned internalFormat, unsigned type, bool premult
iplyAlpha, bool flipY) { return false; } | |
140 | |
141 virtual WebAudioSourceProvider* audioSourceProvider() { return 0; } | |
142 | |
143 // Returns whether keySystem is supported. If true, the result will be | |
144 // reported by an event. | |
145 virtual MediaKeyException generateKeyRequest(const WebString& keySystem, con
st unsigned char* initData, unsigned initDataLength) { return MediaKeyExceptionK
eySystemNotSupported; } | |
146 virtual MediaKeyException addKey(const WebString& keySystem, const unsigned
char* key, unsigned keyLength, const unsigned char* initData, unsigned initDataL
ength, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupport
ed; } | |
147 virtual MediaKeyException cancelKeyRequest(const WebString& keySystem, const
WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; } | |
148 | |
149 // Instruct WebMediaPlayer to enter/exit fullscreen. | |
150 virtual void enterFullscreen() { } | |
151 virtual void exitFullscreen() { } | |
152 // Returns true if the player can enter fullscreen. | |
153 virtual bool canEnterFullscreen() const { return false; } | |
154 | |
155 // Deprecated methods to-be-deleted | |
156 // FIXME: Remove once Chromium no longer overrides | |
157 virtual void cancelLoad() { } | |
158 virtual int dataRate() const { return 0; } | |
159 virtual void setVisible(bool) { } | |
160 virtual void setSize(const WebSize&) { } | |
161 virtual unsigned long long totalBytes() const { return 0; } | |
162 virtual bool totalBytesKnown() { return false; } | |
163 enum MovieLoadType { | |
164 MovieLoadTypeUnknown, | |
165 MovieLoadTypeDownload, | |
166 MovieLoadTypeStoredStream, | |
167 MovieLoadTypeLiveStream, | |
168 }; | |
169 virtual MovieLoadType movieLoadType() const { return MovieLoadTypeUnknown; } | |
170 }; | |
171 | |
172 } // namespace WebKit | |
173 | |
174 #endif | |
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