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大小:8.94 MB
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时间:2019-06-08
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1、동영상서비스와웹표준HTML52011.12민형기CJE&MMusic.Live기술개발실웹어워드2011웹표준&HTML5전략세미나天马行空官方博客:http://t.qq.com/tmxk_docin;QQ:1318241189;QQ群:175569632天马行空官方博客:http://t.qq.com/tmxk_docin;QQ:1318241189;QQ群:175569632목차1.동영상서비스환경변화2.동영상서비스문제3.동영상서비스기술-PluginbasedVideo-Flashvideo-HTML5
2、video-HTML5videoDemo-HTML5video문제점-해결책은?동영상서비스환경변화동영상서비스환경변화-1996~vs.2010~동영상서비스환경변화–BrowserWarshttp://health20.kr/16485동영상서비스환경변화-Devices동영상서비스환경변화–Devices(PCvs.SmartPhone)동영상서비스환경변화–영상서비스의중요성동영상서비스환경변화-클라우드컴퓨팅동영상서비스환경변화–NScreen10동영상서비스문제동영상서비스문제–수많은Devices동영상서비스문제–다
3、양한멀티미디어표준MultimediaCodingonthewebisfragmentedManyvideocodecs:DIVX,XVID,H264WMV,VC-1,VP8ManyContainers(FileFormat):AVI,MKVMP4,FLVManydeliverymethodsRTSP/RTPStreaming,ProgressivedownloadLiveHttpStreaming,SmoothStreaming동영상서비스문제–많은비용동영상서비스문제–해결책은?웹표준기술사용코덱표준화컨테이너표준화비트레이트
4、표준화프로파일표준화전송규격표준화온라인동영상서비스기술PluginBasedVideoFlashVideoHTML5VideoPluginBasedVideoPluginBasedVideo문제OS와브라우저에조합에따른복잡한Video지원문제예)Mac의FF에서wmv다양한코덱이필요예)wmv,mov,rm등Plugin기술을사용하여사용자설치문제발생(ActiveX등)FlashVideoFlashVideo역사2002,FlashVideo출시–Sorensonsparkcodec지원2003,FLVformat지원–VP
5、6codec지원2005,youtube.com에서FlashFLVformat사용2006,H.264codec지원FlashVideo-Market현황http://www.adobe.com/products/player_census/flashplayer/mobile_penetration.htmlhttp://www.adobe.com/products/player_census/flashplayer/DesktopSmartPhone21FlashVideo–CodeExample6、425"height="344">7、application/x-shockwave-flash“allowscriptaccess="always"allowfullscreen="true“width="425"height="344">FlashVideo-Flash문제FlashVideo–ThoughtsonFlashhttp://www.apple.com/hotnews/thoughts-on-flash/HTML5HTML5HTML5에정의된미디어태그(,)플러그8、인설치없이브라우저에서동영상지원하나의태그로다양한video유형을지원JavaScript나ActionScript가필요없음Powerful(simple)APIHTML5지원:IEFirefoxSafariChromeOperai
6、425"height="344">7、application/x-shockwave-flash“allowscriptaccess="always"allowfullscreen="true“width="425"height="344">FlashVideo-Flash문제FlashVideo–ThoughtsonFlashhttp://www.apple.com/hotnews/thoughts-on-flash/HTML5HTML5HTML5에정의된미디어태그(,)플러그8、인설치없이브라우저에서동영상지원하나의태그로다양한video유형을지원JavaScript나ActionScript가필요없음Powerful(simple)APIHTML5지원:IEFirefoxSafariChromeOperai
7、application/x-shockwave-flash“allowscriptaccess="always"allowfullscreen="true“width="425"height="344">FlashVideo-Flash문제FlashVideo–ThoughtsonFlashhttp://www.apple.com/hotnews/thoughts-on-flash/HTML5HTML5HTML5에정의된미디어태그(,)플러그
8、인설치없이브라우저에서동영상지원하나의태그로다양한video유형을지원JavaScript나ActionScript가필요없음Powerful(simple)APIHTML5지원:IEFirefoxSafariChromeOperai
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