参考：
http://outofmemory.cn/code-snippet/4079/java-usage-Xuggler-get-video-shichang-fen-bianlv-high-kuan-kind-information http://blog.csdn.net/kissdeath/article/details/6062277 http://www.oschina.net/code/snippet_220255_7784
主函数，开启线程转码：
package com.main; public class Conver { public static void main (String args[]) { //开启新线程转码视频（参数是要转码的文件） threadPool pool = new threadPool("D:\\video\\old\\test.avi"); // threadPool pool2 = new threadPool(); pool.start(); // pool2.start(); } }线程方法：
package com.main; public class threadPool extends Thread{ private String PATH; public threadPool( String PATH) { this.PATH = PATH; } @Override public void run() { ConverVideo cv = new ConverVideo(); cv.process(PATH); } }转码函数：
package com.main; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.List; public class ConverVideo { private String flvfolder = "D:\\video\\old\\"; // 视频的目录 private String ffmpegpath = "D:\\video\\FFmpeg\\bin\\ffmpeg.exe"; // ffmpeg.exe的目录，转码需要的文件 public boolean process(String PATH) { //调用VedioInfoUtil方法得到视频信息 VedioInfoUtil viu = new VedioInfoUtil(); int width = viu.getwidth(PATH); int hight = viu.gethight(PATH); File fi = new File(PATH); String filename = fi.getName(); //获得文件名 filename = filename.substring(0, filename.lastIndexOf(".")) .toLowerCase(); boolean status = true; //根据视频的分辨率向下转码 if(width==1280){ boolean statu1 = FWVGA(PATH,filename); boolean statu2 = nHD(PATH,filename); boolean statu3 = PAL(PATH,filename); boolean statu4 = VGA(PATH,filename); if(statu1==statu2==statu3==statu4==true) status = true; }else if(width==854){ boolean statu4 = VGA(PATH,filename); boolean statu3 = PAL(PATH,filename); boolean statu2 = nHD(PATH,filename); if(statu2==statu3==statu4==true) status = true; }else if(width==720){ boolean statu4 = VGA(PATH,filename); boolean statu2 = nHD(PATH,filename); if(statu2==statu4==true) status = true; }else if(width==640&&hight==480){ boolean statu2 = nHD(PATH,filename); status = statu2; } return status; } private boolean checkfile(String path) { File file = new File(path); if (!file.isFile()) { return false; } else { return true; } } /*** * 854x480视频 * @param p * @return */ private boolean FWVGA(String PATH,String filename) { if (!checkfile(PATH)) { System.out.println(PATH + "不存在"); return false; } int i = PATH.indexOf("."); //视屏类型 String videoType = PATH.substring(i); List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(PATH); commend.add("-s");//指定分辨率 commend.add("854x480"); commend.add("-r");//桢速率（可以改，确认非标准桢率会导致音画不同步，所以只能设定为15或者29.97） commend.add("25"); commend.add("-b");// 指定压缩比特率，似乎ffmpeg是自动VBR的，指定了就大概是平均比特率，比如768，1500这样的 //就是原来默认项目中有的 commend.add("1400"); commend.add("-ab");//设定声音比特率，前面-ac设为立体声时要以一半比特率来设置，比如192kbps的就设成96，转换 // 君默认比特率都较小，要听到较高品质声音的话建议设到160kbps（80）以上 commend.add("128"); commend.add("-acodec");//设定声音编码 commend.add("libmp3lame"); commend.add("-ac");//设定声道数，1就是单声道，2就是立体声 commend.add("2"); commend.add("-y"); commend.add(flvfolder + filename +"854x480"+videoType); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } /*** * 640X360视频 * @param p * @return */ private boolean nHD(String PATH,String filename) { if (!checkfile(PATH)) { System.out.println(PATH + "不存在"); return false; } int i = PATH.indexOf("."); //视屏类型 String videoType = PATH.substring(i); List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(PATH); commend.add("-s");//指定分辨率 commend.add("640X360"); commend.add("-r");//桢速率（可以改，确认非标准桢率会导致音画不同步，所以只能设定为15或者29.97） commend.add("25"); commend.add("-b");// 指定压缩比特率，似乎ffmpeg是自动VBR的，指定了就大概是平均比特率，比如768，1500这样的 //就是原来默认项目中有的 commend.add("800"); commend.add("-ab");//设定声音比特率，前面-ac设为立体声时要以一半比特率来设置，比如192kbps的就设成96，转换 // 君默认比特率都较小，要听到较高品质声音的话建议设到160kbps（80）以上 commend.add("128"); commend.add("-acodec");//设定声音编码 commend.add("libmp3lame"); commend.add("-ac");//设定声道数，1就是单声道，2就是立体声 commend.add("2"); commend.add("-y"); commend.add(flvfolder + filename + "640X360"+videoType); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } /*** *720x576视频 * @param p * @return */ private boolean PAL(String PATH,String filename) { if (!checkfile(PATH)) { System.out.println(PATH + "不存在"); return false; } int i = PATH.indexOf("."); //视屏类型 String videoType = PATH.substring(i); List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(PATH); commend.add("-s");//指定分辨率 commend.add("720x576"); commend.add("-r");//桢速率（可以改，确认非标准桢率会导致音画不同步，所以只能设定为15或者29.97） commend.add("25"); commend.add("-b");// 指定压缩比特率，似乎ffmpeg是自动VBR的，指定了就大概是平均比特率，比如768，1500这样的 //就是原来默认项目中有的 commend.add("1500"); commend.add("-ab");//设定声音比特率，前面-ac设为立体声时要以一半比特率来设置，比如192kbps的就设成96，转换 // 君默认比特率都较小，要听到较高品质声音的话建议设到160kbps（80）以上 commend.add("128"); commend.add("-acodec");//设定声音编码 commend.add("libmp3lame"); commend.add("-ac");//设定声道数，1就是单声道，2就是立体声 commend.add("2"); commend.add("-y"); commend.add(flvfolder + filename + "720x576"+videoType); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } /*** *640x480视频 * @param p * @return */ private boolean VGA(String PATH,String filename) { if (!checkfile(PATH)) { System.out.println(PATH + "不存在"); return false; } int i = PATH.indexOf("."); //视屏类型 String videoType = PATH.substring(i); List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(PATH); commend.add("-s");//指定分辨率 commend.add("640x480"); commend.add("-r");//桢速率（可以改，确认非标准桢率会导致音画不同步，所以只能设定为15或者29.97） commend.add("25"); commend.add("-b");// 指定压缩比特率，似乎ffmpeg是自动VBR的，指定了就大概是平均比特率，比如768，1500这样的 //就是原来默认项目中有的 commend.add("1000"); commend.add("-ab");//设定声音比特率，前面-ac设为立体声时要以一半比特率来设置，比如192kbps的就设成96，转换 // 君默认比特率都较小，要听到较高品质声音的话建议设到160kbps（80）以上 commend.add("128"); commend.add("-acodec");//设定声音编码 commend.add("libmp3lame"); commend.add("-ac");//设定声道数，1就是单声道，2就是立体声 commend.add("2"); commend.add("-y"); commend.add(flvfolder + filename + "640x480"+videoType); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } @SuppressWarnings("static-access") public int doWaitFor(Process p) { InputStream in = null; InputStream err = null; int exitValue = -1; // returned to caller when p is finished try { System.out.println("comeing"); in = p.getInputStream(); err = p.getErrorStream(); boolean finished = false; // Set to true when p is finished while (!finished) { try { while (in.available() > 0) { Character c = new Character((char) in.read()); System.out.print(c); } while (err.available() > 0) { Character c = new Character((char) err.read()); System.out.print(c); } exitValue = p.exitValue(); finished = true; } catch (IllegalThreadStateException e) { Thread.currentThread().sleep(500); } } } catch (Exception e) { System.err.println("doWaitFor();: unexpected exception - " + e.getMessage()); } finally { try { if (in != null) { in.close(); } } catch (IOException e) { System.out.println(e.getMessage()); } if (err != null) { try { err.close(); } catch (IOException e) { System.out.println(e.getMessage()); } } } return exitValue; } }获得视频信息函数：
package com.main; import com.xuggle.xuggler.ICodec; import com.xuggle.xuggler.IContainer; import com.xuggle.xuggler.IStream; import com.xuggle.xuggler.IStreamCoder; /** * 视频操作类 * @author Administrator * */ public class VedioInfoUtil { /** * 获取视频的时长，分辨率、大小 * @param filename * @return */ public int getwidth(String filename){ int width = 0; // first we create a Xuggler container object IContainer container = IContainer.make(); // we attempt to open up the container int result = container.open(filename, IContainer.Type.READ, null); // check if the operation was successful if (result<0) return 0; // query how many streams the call to open found int numStreams = container.getNumStreams(); // query for the total duration long duration = container.getDuration(); // query for the file size long fileSize = container.getFileSize(); long secondDuration = duration/1000000; System.out.println("时长："+secondDuration+"秒"); System.out.println("文件大小:"+fileSize+"M"); for (int i=0; i<numStreams; i++) { IStream stream = container.getStream(i); IStreamCoder coder = stream.getStreamCoder(); if (coder.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) { System.out.println("视频宽度："+coder.getWidth()); System.out.println("视频高度："+coder.getHeight()); width = coder.getWidth() ; } } return width; } public int gethight(String filename){ int hight = 0; IContainer container = IContainer.make(); int result = container.open(filename, IContainer.Type.READ, null); // check if the operation was successful if (result<0) return 0; int numStreams = container.getNumStreams(); long duration = container.getDuration(); long fileSize = container.getFileSize(); long secondDuration = duration/1000000; System.out.println("时长："+secondDuration+"秒"); System.out.println("文件大小:"+fileSize+"M"); for (int i=0; i<numStreams; i++) { IStream stream = container.getStream(i); IStreamCoder coder = stream.getStreamCoder(); if (coder.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) { System.out.println("视频宽度："+coder.getWidth()); System.out.println("视频高度："+coder.getHeight()); hight = coder.getHeight() ; } } return hight; } }案例下载：
http://pan.baidu.com/s/1geVK8Qv 密码：hsgd
