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 "WebCanvas.h" 35 #include "WebMediaSource.h" 36 #include "WebString.h" 37 #include "WebTimeRange.h" 38 39 namespace blink { 40 41 class WebAudioSourceProvider; 42 class WebAudioSourceProviderClient; 43 class WebMediaPlayerClient; 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 MediaKeyExceptionInvalidAccess, 83 }; 84 85 enum CORSMode { 86 CORSModeUnspecified, 87 CORSModeAnonymous, 88 CORSModeUseCredentials, 89 }; 90 91 enum LoadType { 92 LoadTypeURL, 93 LoadTypeMediaSource, 94 LoadTypeMediaStream, 95 }; 96 ~WebMediaPlayer()97 virtual ~WebMediaPlayer() { } 98 99 virtual void load(LoadType, const WebURL&, CORSMode) = 0; 100 101 // Playback controls. 102 virtual void play() = 0; 103 virtual void pause() = 0; 104 virtual bool supportsFullscreen() const = 0; 105 virtual bool supportsSave() const = 0; 106 virtual void seek(double seconds) = 0; 107 virtual void setRate(double) = 0; 108 virtual void setVolume(double) = 0; setPreload(Preload)109 virtual void setPreload(Preload) { }; 110 virtual const WebTimeRanges& buffered() = 0; 111 virtual double maxTimeSeekable() const = 0; 112 113 virtual void paint(WebCanvas*, const WebRect&, unsigned char alpha) = 0; 114 115 // True if the loaded media has a playable video/audio track. 116 virtual bool hasVideo() const = 0; 117 virtual bool hasAudio() const = 0; 118 119 // Dimension of the video. 120 virtual WebSize naturalSize() const = 0; 121 122 // Getters of playback state. 123 virtual bool paused() const = 0; 124 virtual bool seeking() const = 0; 125 virtual double duration() const = 0; 126 virtual double currentTime() const = 0; 127 128 // Internal states of loading and network. 129 virtual NetworkState networkState() const = 0; 130 virtual ReadyState readyState() const = 0; 131 132 virtual bool didLoadingProgress() const = 0; 133 134 virtual bool hasSingleSecurityOrigin() const = 0; 135 virtual bool didPassCORSAccessCheck() const = 0; 136 137 virtual double mediaTimeForTimeValue(double timeValue) const = 0; 138 139 virtual unsigned decodedFrameCount() const = 0; 140 virtual unsigned droppedFrameCount() const = 0; corruptedFrameCount()141 virtual unsigned corruptedFrameCount() const { return 0; }; 142 virtual unsigned audioDecodedByteCount() const = 0; 143 virtual unsigned videoDecodedByteCount() const = 0; 144 145 // Do a GPU-GPU textures copy if possible. copyVideoTextureToPlatformTexture(WebGraphicsContext3D *,unsigned texture,unsigned level,unsigned internalFormat,unsigned type,bool premultiplyAlpha,bool flipY)146 virtual bool copyVideoTextureToPlatformTexture(WebGraphicsContext3D*, unsigned texture, unsigned level, unsigned internalFormat, unsigned type, bool premultiplyAlpha, bool flipY) { return false; } 147 audioSourceProvider()148 virtual WebAudioSourceProvider* audioSourceProvider() { return 0; } 149 150 // Returns whether keySystem is supported. If true, the result will be 151 // reported by an event. generateKeyRequest(const WebString & keySystem,const unsigned char * initData,unsigned initDataLength)152 virtual MediaKeyException generateKeyRequest(const WebString& keySystem, const unsigned char* initData, unsigned initDataLength) { return MediaKeyExceptionKeySystemNotSupported; } addKey(const WebString & keySystem,const unsigned char * key,unsigned keyLength,const unsigned char * initData,unsigned initDataLength,const WebString & sessionId)153 virtual MediaKeyException addKey(const WebString& keySystem, const unsigned char* key, unsigned keyLength, const unsigned char* initData, unsigned initDataLength, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; } cancelKeyRequest(const WebString & keySystem,const WebString & sessionId)154 virtual MediaKeyException cancelKeyRequest(const WebString& keySystem, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; } 155 156 // Instruct WebMediaPlayer to enter/exit fullscreen. enterFullscreen()157 virtual void enterFullscreen() { } exitFullscreen()158 virtual void exitFullscreen() { } 159 // Returns true if the player can enter fullscreen. canEnterFullscreen()160 virtual bool canEnterFullscreen() const { return false; } 161 }; 162 163 } // namespace blink 164 165 #endif 166