AdobeEncore学习笔记一、EN的工作流程:1、计划项目1.1草拟一个场景导航的流程图;1.2项目的预算:需考虑到,视频的质量、文件的大小、及存储媒介,复制方法等。普通资源的大小建议:音频:以使用杜比数字立体声标准:0.192Mbps;每个子图(SubPicture):0.010Mps;动画菜单:对于标准视频定义转码是8Mbps,高清定义是40Mbps;静止的菜单:平均大小在230KB;幻灯片:其基于是否包含转场效果,随机的平移缩放等效果若无任何效果只是一个静态图片的切换,通常每张图大小230KB若包含转场,如每个静态图片10秒,2秒转场;一般不用算在预算里;如果有随机平移和缩放效果;如5分种的幻灯片展示,必须进行预算;决定光盘媒介:PR可创建25GB的Blu-rayDisc,不同大小DVDDisc,选择光盘的大小要基于视频的数量和复制的方法。使用MPEG-2,Blu-rayDisc可以存储135分钟的高清视频;EN支持H.264编码的Blu-ray项目,其比MPEG-2提供更高的质量和代字节速率。支持Dual-layerDisc:DVD-RDL,DVD+RDL(有些播放器可能不兼容);为保证某种方式刻录的光盘可播放的兼容性需要在不同播放器上进行测试。支持Dual-sideDisc:制作这样的光盘必须要求创建两个分离的项目。项目预算示例1:Proceedasfollowsforbitbudgetingofa120-minutestandard-definitionvideowiththreeaudiotracks,twosubtitletracks,twomotionmenus,anda1-minutemoviepreviewtobeburnedtoan8.54-GBDVD:以下是一个120分钟,带有三个声轨,两个字幕轨道,两个动画菜单和一分钟电影预览的标清视频字节预算编制方案(其在一个8.54G光盘上烧录计算方法)1Calculatethetotalavailablediscspaceinbits.An8.54-GBdisccontains8,540,000,000bytes;eachbytecontains8bits.8,540,000,000x8=68,320,000,000bits=68,320Mbits.2Calculatethediscspaceavailableforvideo.Combinethesizeoftheaudio,subtitles,motionmenus,moviepreview,and4%ofthedisccapacity(foroverhead,justtobesafe),andthensubtractthatsumfromthetotalavailablespaceyoucalculatedinstep1.•Three120-minuteaudiostreams,twowithadatarateof0.192Mbps,andonewitharateof0.448Mbps:(2x(120minutesx60secondsperminutex0.192Mbps)+(120minutesx60secondsperminutex0.448Mbps)=5,990.4Mbits.•Twosubtitleswithadatarateof0.010Mbps:2x(120minutesx60secondsperminute)x0.010Mbps=144Mbits.•Two24-secondmotionmenuswithanestimateddatarateof8Mbps:2x(24secondsx8Mbps)=384Mbits.•One-minutemoviepreviewwithadatarateof4.5Mbps:60secondsx4.5Mbps=270Mbits.•4%overhead:0.04x68,320,000,000bits=2,732,800,000bits=2,732.8Mbits.•Totalaudio,subtitles,motionmenus,preview,andoverheadsizes:5,990.4Mbits+144Mbits+384Mbits+270Mbits+2,732.8Mbits=9,521.2Mbits.•Discspaceavailableforvideo:68,320Mbits-9,521Mbits=58,799Mbits.3Calculatethedatarateofthevideo.Dividethediscspaceavailableforvideothatyoudeterminedinstep2bytheamountofvideo(inseconds)theprojectcontains:58,799Mbits/(120minutesx60secondsperminute)=8.16Mbps.4Determinethemaximumvideodatarate.SubtractthecombinedaudioandsubtitlesdataratesfromthemaximumDVDvideodatarateof9.8Mbps:9.8Mbps-(0.192+0.192+0.448+0.010+0.010)=8.95Mbps.Thevideowillfitonthediscusingadatarateof8.16Mbps,whichisbelowthemaximumvideodatarateof8.95.Furthermore,becausethetargetvideodatarateof8.16Mbpsisabove6Mbps,youdonotneedtouseVBR.项目预算示例2HereisanexampleofabitbudgetforaBlu-rayDiscprojectthatcontains2hoursand7minutesofhigh-definition(HD)videoandaudio,one30-secondHDmotionmenuwith30secondsofaudio,andoneHDpan-and-zoomslideshowcontaining50slidesand8minutesofaudio(totalslideshowdurationis8minutes),tobedistributedona25-GBdisc:1Totalavailablediscspaceis24.5GB(25-GBdisccapacityminusaveryconservative2%overheadof0.5GB).2Spacerequiredfortheaudio,motionmenu,andslideshow:•127-minuteaudiostreamwithadatarateof0.192Mbps=127minutesx60secondsx0.192=1,463.04Mbits;dividedby8bits=182.88MB,roundedoffto183MB.•30-secondmenuaudiostream=30secondsx0.192Mbps=5.76Mbits;dividedby8bits=0.72MB,roundedoffto1MB.•8-minuteslideshowaudiostream=8minutesx60secondsx0.192Mbps=92.16Mbits;dividedby8bits=11.52MB,roundedoffto12MB.•30-secondmotionmenuat40Mbps=1,200Mbits;dividedby8bits=150MB.22USINGADOBEENCORECS4Planningtheproject•8-minuteslideshowvideo(allpanandzoom)at20Mbps=8minutesx60secondsx20Mbps=9,600Mbits;dividedby8bits=1,200MBor1.2GB.•Totaldiscspacerequired=183MB+1MB+12MB+150MB+1,200MB=1,546MBor1.546GB.3Calculateamountofdiscspaceavailableforvideobysubtractingthetotaldiscspacerequiredinstep2fromthetotalavailablediscspaceinstep1:•24.5GBavailablespace-1.546GBrequired=22.954GBavailableforvideo.4Calculatethedatarateofthevideobydividingthediscspaceavailableforvideo(instep3)bytheamountofvideo(inseconds)theprojectcontains.•183,632Mbitsavailable(22.954GBx1,000MB/GBx8bitsperbyte)dividedby7,620secondsofvideo(127minutesx60secondsperminute)=24.10Mbps.•127minutesofvideoat24.10Mbps=22.96GB.(127x24.10x60seconds=183,642Mbits,dividedby8=22,955.25MB,dividedby1,000=22.96GB).5Determinethemaximumvideodatarateforthisprojectbysubtractingthecombinedaudiodataratesfromthedisc’smaximumvideodatarateof40Mbps.•40Mbps-0.576Mbps(0.192+0.192+0.192)=39.424MbpsSothevideowillfitonthediscusingthevideodatarateof24.10Mbps,whichisbelowthemaximumvideodatarateof39.424Mbps.2、输入资源为项目准备原始资源,输入到EN里,其包括3、创建项目元素和为项目元素添加资源EN项目元素包含时间线(Timeline)、幻灯片展示(SlideShow)、播放列表(PlayList)、章节列表(ChapterList)、菜单(Menu)等;添加资源到这些里如将视/音频文件添加到时间线;这些资源可以添加到什么样的EN元素里,视资源类型而定。4、创建菜单菜单提供给阅览者一个访问内容的界面;菜单可以通过模板创立后到PS进行修改;若熟悉怎样直接在PS创建菜单,也可先按流程图在PS里设计好菜单,再输入到项目里。(可以从模板菜单方面开始熟悉怎样直接在PS里创建菜单)5、指定导航1、任意的视频(只要是EN支持导入的视频格式);2、静态图片;3、音频文件;4、旁白或配音音频等文件;5、可动态输入未渲染的PR序列;菜单指是提供一个界面,除此之外还要为菜单设置导航类型(endactons、overides等)及指向链接。6、保证音/视频相兼容性如果输入的视频和音频与DVDorBlu-rayDisc不兼容,在烧录之前使用EN进行转码,可以通过选项设置,瘊定EN以最好的方式最符合的要求设置进行转码(transcoding)。7、预览项目在烧录之前预览和检查自己的创作处理有没有达到设计的要求;8、烧录光盘使用Build从EN直接烧录DVD,Blu-rayDisc或创它们的映象文件。9、输出Flash格式二、输出视频必须遵守的标准TVstandardBlu-rayDiscframerateBlu-rayDiscframesizeAspectrati