jsp上传视频自动转换为flv 算法

Cnvert 类 package com.v246.convertFLV; import java.util.ArrayList; import java.util.List; import com.v246.utils.Aqu; //作者：古刹飞鹰 blog:www.v246.com懒汉模式 public class Convert { private static Convert instance = null; //作者：古刹飞鹰 blog:www.v246.com flv截图工具的绝对地址 private String aquInterceptPicToolsPath = "c:\\FLVTools\\ffmpeg.exe"; //作者：古刹飞鹰 blog:www.v246.com flv修复工具的绝对地址 private String fixFLVToolsPath = "c:\\FLVTools\\flvmdi.exe"; //作者：古刹飞鹰 blog:www.v246.com flv转换工具的绝对地址 private String aquCoverFLVToolsPath = "c:\\FLVTools\\mencoder\\mencoder.exe"; private Convert() { //作者：古刹飞鹰 blog:www.v246.cominit(); } public static Convert getInstance() { if (instance == null) { instance = new Convert(); } return instance; } public void reset(){ //作者：古刹飞鹰 blog:www.v246.cominit(); } private void init() { /*aquInterceptPicToolsPath = Aqu.getXMLValue("convertFLV.xml", "//作者：古刹飞鹰 blog:www.v246.com古刹飞鹰/FLV转换工具全路径")[0]; fixFLVToolsPath = Aqu .getXMLValue("convertFLV.xml", "//作者：古刹飞鹰 blog:www.v246.com古刹飞鹰/FLV截图工具全路径")[0]; aquCoverFLVToolsPath = Aqu.getXMLValue("convertFLV.xml", "//作者：古刹飞鹰 blog:www.v246.com古刹飞鹰/FLV修复工具全路径")[0]; aquInterceptPicToolsPath = aquInterceptPicToolsPath.replace("/", "\\"); fixFLVToolsPath = fixFLVToolsPath.replace("/", "\\"); aquCoverFLVToolsPath = aquCoverFLVToolsPath.replace("/", "\\"); System.out.println(aquInterceptPicToolsPath); System.out.println(fixFLVToolsPath); System.out.println(aquCoverFLVToolsPath);*/ } public synchronized boolean convert(String aquInputPath, String outPath) { boolean re = false; //作者：古刹飞鹰 blog:www.v246.com 通一路径定位符 aquInputPath = aquInputPath.replace("/", "\\"); //作者：古刹飞鹰 blog:www.v246.com 通一路径定位符 outPath = outPath.replace("/", "\\"); //作者：古刹飞鹰 blog:www.v246.com 分析不包含文件名的输出路径 String interceptPicSavePath = outPath.substring(0, outPath .lastIndexOf("\\") + 1); //作者：古刹飞鹰 blog:www.v246.com 分析输出的文件名 String outFileName = outPath.substring(outPath.lastIndexOf("\\") + 1, outPath.length()); //作者：古刹飞鹰 blog:www.v246.com 继续分析得出不包含扩展名的文件名 String outFileNameNoExt = outFileName.substring(0, outFileName .lastIndexOf(".")); //作者：古刹飞鹰 blog:www.v246.com 工作目录，随便设置 //作者：古刹飞鹰 blog:www.v246.com String workdirectory = "c:\\windows\\temp"; //作者：古刹飞鹰 blog:www.v246.com 修复命令 List<String> parameterForFix = new ArrayList<String>(100); //作者：古刹飞鹰 blog:www.v246.com 转换命令 List<String> aquParameterForConvert = new ArrayList<String>(100); //作者：古刹飞鹰 blog:www.v246.com 截图命令 List<String> aquParameterForIntercept = new ArrayList<String>(100); //作者：古刹飞鹰 blog:www.v246.com 构建转换命令 aquParameterForConvert.add(aquCoverFLVToolsPath); aquParameterForConvert.add("-vf"); aquParameterForConvert.add("scale=320:240"); aquParameterForConvert.add("-ffourcc"); aquParameterForConvert.add("FLV1"); aquParameterForConvert.add("-of"); aquParameterForConvert.add("lavf"); aquParameterForConvert.add("-lavfopts"); aquParameterForConvert .add("i_certify_that_my_video_stream_does_not_use_b_frames"); aquParameterForConvert.add("-ovc"); aquParameterForConvert.add("lavc"); aquParameterForConvert.add("-lavcopts"); aquParameterForConvert.add("vcodec=flv:vbitrate=200"); aquParameterForConvert.add("-srate"); aquParameterForConvert.add("22050"); aquParameterForConvert.add("-oac"); aquParameterForConvert.add("lavc"); aquParameterForConvert.add("-lavcopts"); aquParameterForConvert.add("acodec=mp3:abitrate=56"); aquParameterForConvert.add(aquInputPath); aquParameterForConvert.add("-o"); aquParameterForConvert.add(outPath); //作者：古刹飞鹰 blog:www.v246.com 构建修复命令 parameterForFix.add(fixFLVToolsPath); parameterForFix.add(outPath); //作者：古刹飞鹰 blog:www.v246.com 构建截图命令 aquParameterForIntercept.add(aquInterceptPicToolsPath); aquParameterForIntercept.add("-i"); aquParameterForIntercept.add(outPath); aquParameterForIntercept.add("-y"); aquParameterForIntercept.add("-f"); aquParameterForIntercept.add("image2"); aquParameterForIntercept.add("-ss"); aquParameterForIntercept.add("8"); aquParameterForIntercept.add("-t"); aquParameterForIntercept.add("0.001"); aquParameterForIntercept.add("-s"); aquParameterForIntercept.add("320x240"); aquParameterForIntercept.add(interceptPicSavePath + outFileNameNoExt + ".jpg"); //作者：古刹飞鹰 blog:www.v246.com转换 String tmp1 = Aqu.exec(aquParameterForConvert); //作者：古刹飞鹰 blog:www.v246.com截图 String tmp2 = Aqu.exec(aquParameterForIntercept); return re; } public static void main(String[] args) { getInstance().convert("h:\\QQ28095553\\古刹飞鹰.wmv", "h:\\aquaqu(quana)gmail.com\\古刹飞鹰.flv"); } } ConvertThread 类 package com.v246.convertFLV; public class ConvertThread extends Thread{ private String fromPath = null; private String toPath = null; @Override public void run(){ Convert.getInstance().convert(fromPath, toPath); } public void setFromPath(String fromPath) { this.fromPath = fromPath; } public void setToPath(String toPath) { this.toPath = toPath; } } ConvertThreadProxy类： package com.v246.convertFLV; public class ConvertThreadProxy { public static void convert(String fromPath, String toPath) { ConvertThread ct = new ConvertThread(); ct.setFromPath(fromPath); ct.setToPath(toPath); ct.start(); } } 使用的时候只要通过ConvertThreadProxy 类的静态方法将源视频绝对地址（包括文件名+括展名）和要生成的FLV文件的绝对地址（包括文件名+括展名）以字符串的方式传进去即可！因为用的是多线程，所以转换过程不会占用当前线程！ 核心转换类是线程同步的，所以您不用担心并法问题，因为一次只能转换一个文件！ 注:安装和使用ffmpeg转换视频为flv文件（windows和linux） 用java程序调用ffmpeg执行视频文件格式转换flv