html5功能技術(shù)介紹科技模板

??????????HTML5<video>2021.12???CJE&MMusic.Live?????????2021???&HTML5?????可以在以下情況使用不限次數(shù)的用于您個(gè)人/公司、企業(yè)的商業(yè)演示。修改模板中的內(nèi)容包括，圖片，數(shù)據(jù)，文本的替換?？截惸０逯械膬?nèi)容用于其它幻燈片母版中使用。不可以在以下情況使用用于任何形式的在線付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，用于各種形式的付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，刻錄光碟銷售。本PPT由2PPT網(wǎng)收集整理，版權(quán)屬原作者所有PPT模板下載PPT課件下載PPT背景下載PPT圖表下載PPT教程下載隨時(shí)歡送您訪問2PPT網(wǎng)ppt??1.??????????2.????????3.????????-PluginbasedVideo-Flashvideo-HTML5video

-HTML5videoDemo

-HTML5video???-?????????????????????????-1996~vs.2021~??????????–BrowserWars://health20.kr/1648??????????-Devices??????????–Devices(PCvs.SmartPhone)可以在以下情況使用不限次數(shù)的用于您個(gè)人/公司、企業(yè)的商業(yè)演示。修改模板中的內(nèi)容包括，圖片，數(shù)據(jù)，文本的替換?？截惸０逯械膬?nèi)容用于其它幻燈片母版中使用。不可以在以下情況使用用于任何形式的在線付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，用于各種形式的付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，刻錄光碟銷售。本PPT由2PPT網(wǎng)收集整理，版權(quán)屬原作者所有PPT模板下載PPT課件下載PPT背景下載PPT圖表下載PPT教程下載隨時(shí)歡送您訪問2PPT網(wǎng)ppt??????????–???????????????????-?????????????????–NScreen????????可以在以下情況使用不限次數(shù)的用于您個(gè)人/公司、企業(yè)的商業(yè)演示。修改模板中的內(nèi)容包括，圖片，數(shù)據(jù)，文本的替換?？截惸０逯械膬?nèi)容用于其它幻燈片母版中使用。不可以在以下情況使用用于任何形式的在線付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，用于各種形式的付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，刻錄光碟銷售。本PPT由2PPT網(wǎng)收集整理，版權(quán)屬原作者所有PPT模板下載PPT課件下載PPT背景下載PPT圖表下載PPT教程下載隨時(shí)歡送您訪問2PPT網(wǎng)ppt????????–???Devices????????–??????????MultimediaCodingonthewebisfragmentedManyvideocodecs:DIVX,XVID,H264WMV,VC-1,VP8ManyContainers(FileFormat):AVI,MKVMP4,FLVManydeliverymethodsRTSP/RTPStreaming,ProgressivedownloadLiveHttpStreaming,SmoothStreaming????????–????????????–?????????????????????????????????????????????????????????PluginBasedVideoFlashVideoHTML5VideoPluginBasedVideoPluginBasedVideo??OS??????????????Video?????)Mac?FF??wmv?????????)wmv,mov,rm?Plugin????????????????(ActiveX?)可以在以下情況使用不限次數(shù)的用于您個(gè)人/公司、企業(yè)的商業(yè)演示。修改模板中的內(nèi)容包括，圖片，數(shù)據(jù)，文本的替換?？截惸０逯械膬?nèi)容用于其它幻燈片母版中使用。不可以在以下情況使用用于任何形式的在線付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，用于各種形式的付費(fèi)下載。收集整理我們發(fā)布的免費(fèi)資源后，刻錄光碟銷售。本PPT由2PPT網(wǎng)收集整理，版權(quán)屬原作者所有PPT模板下載PPT課件下載PPT背景下載PPT圖表下載PPT教程下載隨時(shí)歡送您訪問2PPT網(wǎng)pptFlashVideoFlashVideo??2002,FlashVideo??–Sorensonsparkcodec??2003,FLVformat??–VP6codec??2005,youtube??FlashFLVformat??2006,H.264codec??FlashVideo-Market??DesktopSmartPhoneFlashVideo–CodeExample<objectwidth="425"height="344"><paramname="movie“value="://youtube/v/9sEI1AUFJKw&hl=en&fs=1&"></param><paramname="allowFullScreen“value="true"></param><paramname="allowscriptaccess“value="always"></param><embedsrc="://youtube/v/9sEI1AUFJKw&hl=en&fs=1&"type="application/x-shockwave-flash“allowscriptaccess="always"allowfullscreen="true“width="425"height="344"></embed></object>FlashVideo-Flash??FlashVideo–ThoughtsonFlashHTML5<video>HTML5<video>HTML5?????????(<audio>,<video>)????????????????????????????video?????JavaScript?ActionScript?????Powerful(simple)APIHTML5<video>??:IEFirefoxSafariChromeOperaiPhoneAndroid9.0+3.5+3.0+3.0+10.5+1.0+2.0+HTML5<video>-Example<videowidth="480"height="380“controls><sourcesrc=":///{...}_512kb.mp4"type="video/mp4"></source><sourcesrc=":///{...}nsters.ogv"type="video/ogg"></source><p>Yourbrowserdoesn'tlikeHTML5video,watchthemovieon<aref=":///{...}_monsters"></a>.</p></video>???????????Controlling<video>withJavaScriptvarv=document.getElementById('player');v.play();v.pause();v.volume=...;v.currentTime=...;...<video>

methods&attributesvarvideo=$('video').get(0);video.play();video.pause();video.paused;//Returnstrueifvideoispaused.video.ended;//Returnstrueifvideoisover.video.volume;//Returnsvolumevalue(between0-1)video.volume=0.5;//Setsvolumevalue(between0-1)video.currentTime;//Currentpointoftimeinthevideo.video.length;//Returnsthelengthinseconds.video.seekable;//Returnstrueifsupportsseeking.video.playbackRate;//Allowsyoutorewind/fastforward.?????????src:???????????currentTime:?????????????duration:?????????????paused:????????ended:????????muted:???????volume:???(0.0~1.0?????)error:???????networkState:???????????????????(???,???,??,?????)????load():??????????(???????)play():?????????pause():????

Eventsfiredby<video>varv=document.getElementById('player');v.addEventListener('loadeddata',function(){...},true)v.addEventListener('play',function(){...},true)v.addEventListener('pause',function(){...},true)v.addEventListener('timeupdate',function(){...},true)v.addEventListener('ended',function(){...},true)...?????play:??????progress:????????????

???(??????)??timeupdate:?????????ended:???????error:???????,??????????????

HTML5VideoDemoDemo-Videowithexternalcontrols??<video>UI???OPERASAFARIFIREFOXCHROMEIE9Demo-FancyvideocontrolswithJavascriptDemo-FancyvideoswapDemo-HTML5VideoEventsandAPIDemo-TransformingHTML5videowithCSS3://isithackday/mit/transforming-video.htmlDynamicContentInjection://people.mozilla/~prouget/demos/DynamicContentInjection/play.xhtmlCanvasVideoHTML5Video???HTML5Video???????????????(Codecfragment)?????????????(ProgressiveDownload)???????(ContentsProtection)???+??(Encapsulation+Embedding)??????(FullscreenVideo)???+??????????????????????/?????????????????Ecosystem(?????????,??)???????(~2021)Codec/Container–MP4/H.264

9.0ubiquitous,patentencumbered,licensing/royalties49Codec/Container–OggTheora

“freeandopen〞,nolicensing/royaltiesnotmanytoolsforit,notweboptimised50Codec/Container–WebM/VP8

openandroyalty-free,weboptimised???????????????????H.264viaHTML5withafallbacktoFlashorSilverlight(playingthesamefile)ifthebrowsercannotplayH.264nativelyvia<video>.HTML5video+Flashvideo<videocontrolsautoplayposter="..."width="..."height="..."><sourcesrc="movie.mp4"type="video/mp4"/><sourcesrc="movie.webm"type="video/webm"/><sourcesrc="movie.ogv"type="video/ogg"/><objectwidth="..."height="..."type="application/x-shockwave-flash"data="player.swf"><paramname="movie"value="player.swf"/><paramname="flashvars"value="...file=movie.mp4"/><!--fallbackcontent--></object></video>CSSstyledvideocontrols–MediaElementJS://mediaelementjs/ChromeFrameMinimaleffortforbringingIE6,7and8uptothelatestHTML5technologiesTwowaystogetyourwebsitesreadyforChromeFrame:Clientside:

Serverside:

<meta-equiv="X-UA-Compatible〞content="chrome=1">X-UA-Compatible:chrome=1????????StreamingProtocol–ProgressiveDownload-VideoDelivery????????????-?????????-Flash?HTML5audio,video,iOS,Android?????-???????????-???????????(???????)-??????????????StreamingProtocol–RTMP/RTSPStreaming-RTMP+Flash?StreamingProtocol,FMS,Wowza,????CDN?????+Bandwithefficiency,Qualityswitching-RTSP:Android?????-??????-????,??????(rtsp/554,rtmp/1935,rtmpt/80)-?????????(???????????????)-?????,???????StreamingProtocol–AdaptiveHTTPStreaming-HTTPDynamicStreaming:Flash-HttpLiveStreaming:iOS,Android3.0-SmoothStreaming:Silverlight,IISMediaServiceExtension-DASH(DynamicAdaptiveStreamingoverHTTP):MPEG?????

-RTMP?AdaptiveStreaming????-?????StreamingProtocol–Device???DevicesPr