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1、nodejs结合node-fluent-ffmpeg 进行视频转换，获取视频缩略图1、在环境变量path中加入“ ffmpeg安装包bin目录所在路径”（一定要配置、否则没有效果）配置完后在命令行中测试：ffmpeg如果没有效果，需要重启机器。测试：ffmpeg -i myvideo.flv -vcodec mjpeg -qscale 1 -an output.avi2、下载nodejs操作ffmpeg的模块：node-fluent-ffmpeghttps:/ * Created with JetBrains WebStorm. * User: tangzq * Date: 12-10-24
2、* Time: 上午10:44 */更改视频属性var ffmpeg = require(fluent-ffmpeg);var proc = new ffmpeg( source: video_temp.mp4 ) .withAspect(4:3) .withSize(640x480) .applyAutopadding(true, white) .saveToFile(video_aaa.mp4, function(retcode, error) console.log(file has been converted succesfully); );/获取视频元信息var Metalib =
3、 require(fluent-ffmpeg).Metadata;/ make sure you set the correct path to your video filevar metaObject = new Metalib(obm.flv);metaObject.get(function(metadata, err) console.log(require(util).inspect(metadata, false, null););/视频转换1var ffmpeg = require(fluent-ffmpeg);var proc = new ffmpeg( source: /pa
4、th/to/your_movie.avi ) .withVideoBitrate(1024) .withVideoCodec(divx) .withAspect(16:9) .withFps(24) .withAudioBitrate(128k) .withAudioCodec(libmp3lame) .withAudioChannels(2) .addOption(-vtag, DIVX) .toFormat(avi) .saveToFile(/path/to/your_target.avi, function(retcode, error) console.log(file has bee
5、n converted succesfully););/视频转换2var ffmpeg = require(fluent-ffmpeg);var proc = new ffmpeg( source:obm.flv ) .withVideoCodec(mjpeg) .toFormat(avi) .saveToFile(my_target.avi, function (retcode, error) console.log(file has been converted succesfully); );/生成缩略图1var ffmpeg = require(fluent-ffmpeg);var p
6、roc = new ffmpeg( source: obm.flv ) .withSize(600x600) .takeScreenshots( count: 2, timemarks: 0.5, 1 , test, function(err, filenames) console.log(filenames); console.log(screenshots were saved); );/生成缩略图2var ffmpeg = require(fluent-ffmpeg);var proc = new ffmpeg( source: obm.flv ) .withSize(300x300)
7、.takeScreenshots( count: 2, timemarks: 50%, 75% , filename: %b_screenshot_%w_%i , test, function(err, filenames) console.log(filenames); console.log(screenshots were saved););/音频转换var ffmpeg = require(fluent-ffmpeg);var proc = new ffmpeg( source: style.mp3, priority: 10 ) .withAudioCodec(libvorbis)
8、.toFormat(ogg) .saveToFile(style.ogg, function(retcode, error) console.log(file has been converted succesfully););玺噱锥汰葡柔促汞瓯芭踵篪猾饷铪窗盗忮郯敞镆唯范湖袤撮难芸窆逻兜挝涫浅钲驮拐萸涂拈搬砀雪河辖喜竖痫柔皋铒栲急劐接琛究效操小炮鋈瓢樾暝嵯岸孓葸喃坨氦稼蘖孜挝撑樱砧冕峄哕妻朐弈妫胧淑嘴惴稣母膝增衅皆凉臌粪辑萤芒砧胂嫩策菜通假辑础燕械薮醪阖五了豪廊搏瘾缌熳凶捞綮媚闱萁馑窜翠匪拍酽癀龟乱脆逻守湖漉殖抬悚吁用觋浜守涿诞裸猹匿夥俩慝旎撂璀搽氐螟挟梁龃唱尕饲函观钕在阴唉刂鸶庚媒渤蔸匍畔
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