java调用FFmpeg及mencoder转换视频为FLV并截图，ffmpegmencoder,java调用FFmpeg
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java调用FFmpeg及mencoder转换视频为FLV并截图，ffmpegmencoder,java调用FFmpeg
java调用FFmpeg及mencoder转换视频为FLV并截图，需要FFmpeg及mencoder支持请自行下载，以下为相关程序：
java调用FFmpeg及mencoder转换视频为FLV并截图
Conver.java package com.ll19.flv;public class Conver { public void run() { try { // 转换并截图 String filePath = "D:\\video\\old\\test.avi"; ConverVideo cv = new ConverVideo(filePath); cv.beginConver(); // 仅截图 // ProcessFlvImg pfi = new ProcessFlvImg(); // pfi.processImg("D:\\video\\old\\test.avi"); } catch (Exception e) { e.printStackTrace(); } } public static void main(String args[]) { Conver c = new Conver(); c.run(); }}ConverVideo.javapackage com.ll19.flv;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.util.Date;import java.util.List;public class ConverVideo { private Date dt; private long begintime; private String PATH; private String filerealname; // 文件名 不包括扩展名 private String filename; // 包括扩展名 private String videofolder = "D:\\video\\other\\"; // 别的格式视频的目录 private String flvfolder = "D:\\video\\flv\\"; // flv视频的目录 private String ffmpegpath = "D:\\video\\FFmpeg\\bin\\ffmpeg.exe"; // ffmpeg.exe的目录 private String mencoderpath = "D:\\video\\mencoder\\"; // mencoder的目录 private String videoRealPath = "D:\\video\\flv\\"; // 截图的视频目录; private String imageRealPath = "D:\\video\\img\\"; // 截图的存放目录 public ConverVideo() { } public ConverVideo(String path) { PATH = path; } public String getPATH() { return PATH; } public void setPATH(String path) { PATH = path; } public boolean beginConver() { File fi = new File(PATH); filename = fi.getName(); filerealname = filename.substring(0, filename.lastIndexOf(".")) .toLowerCase(); System.out.println("----接收到文件(" + PATH + ")需要转换-------------------------- "); if (!checkfile(PATH)) { System.out.println(PATH + "文件不存在" + " "); return false; } dt = new Date(); begintime = dt.getTime(); System.out .println("----开始转文件(" + PATH + ")-------------------------- "); if (process()) { Date dt2 = new Date(); System.out.println("转换成功 "); long endtime = dt2.getTime(); long timecha = (endtime - begintime); String totaltime = sumTime(timecha); System.out.println("共用了:" + totaltime + " "); if (processImg()) { System.out.println("截图成功了 "); } else { System.out.println("截图不成功了 "); } PATH = null; return true; } else { PATH = null; return false; } } public boolean processImg() { List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(videoRealPath + filerealname + ".flv"); commend.add("-y"); commend.add("-f"); commend.add("image2"); commend.add("-ss"); commend.add("38"); commend.add("-t"); commend.add("0.001"); commend.add("-s"); commend.add("320x240"); commend.add(imageRealPath + filerealname + ".jpg"); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); builder.start(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } private boolean process() { int type = checkContentType(); boolean status = false; if (type == 0) { // status = processFLV(PATH);// 直接将文件转为flv文件 status = processFLV(PATH); } else if (type == 1) { String avifilepath = processAVI(type); if (avifilepath == null) return false; // avi文件没有得到 else { System.out.println("kaishizhuang"); status = processFLV(avifilepath);// 将avi转为flv } } return status; } private int checkContentType() { String type = PATH.substring(PATH.lastIndexOf(".") + 1, PATH.length()) .toLowerCase(); // ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等） if (type.equals("avi")) { return 0; } else if (type.equals("mpg")) { return 0; } else if (type.equals("wmv")) { return 0; } else if (type.equals("3gp")) { return 0; } else if (type.equals("mov")) { return 0; } else if (type.equals("mp4")) { return 0; } else if (type.equals("asf")) { return 0; } else if (type.equals("asx")) { return 0; } else if (type.equals("flv")) { return 0; } // 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等), // 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式. else if (type.equals("wmv9")) { return 1; } else if (type.equals("rm")) { return 1; } else if (type.equals("rmvb")) { return 1; } return 9; } private boolean checkfile(String path) { File file = new File(path); if (!file.isFile()) { return false; } else { return true; } } // 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等), 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式. private String processAVI(int type) { List commend = new java.util.ArrayList(); commend.add(mencoderpath); commend.add(PATH); commend.add("-oac"); commend.add("mp3lame"); commend.add("-lameopts"); commend.add("preset=64"); commend.add("-ovc"); commend.add("xvid"); commend.add("-xvidencopts"); commend.add("bitrate=600"); commend.add("-of"); commend.add("avi"); commend.add("-o"); commend.add(videofolder + filerealname + ".avi"); // 命令类型：mencoder 1.rmvb -oac mp3lame -lameopts preset=64 -ovc xvid // -xvidencopts bitrate=600 -of avi -o rmvb.avi try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); return videofolder + filerealname + ".avi"; } catch (Exception e) { e.printStackTrace(); return null; } } // ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等） private boolean processFLV(String oldfilepath) { if (!checkfile(PATH)) { System.out.println(oldfilepath + " is not file"); return false; } List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(oldfilepath); commend.add("-ab"); commend.add("64"); commend.add("-acodec"); commend.add("mp3"); commend.add("-ac"); commend.add("2"); commend.add("-ar"); commend.add("22050"); commend.add("-b"); commend.add("230"); commend.add("-r"); commend.add("24"); commend.add("-y"); commend.add(flvfolder + filerealname + ".flv"); try { ProcessBuilder builder = new ProcessBuilder(); String cmd = commend.toString(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); deleteFile(oldfilepath); return true; } catch (Exception e) { e.printStackTrace(); return false; } } 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; } public void deleteFile(String filepath) { File file = new File(filepath); if (PATH.equals(filepath)) { if (file.delete()) { System.out.println("文件" + filepath + "已删除"); } } else { if (file.delete()) { System.out.println("文件" + filepath + "已删除 "); } File filedelete2 = new File(PATH); if (filedelete2.delete()) { System.out.println("文件" + PATH + "已删除"); } } } public String sumTime(long ms) { int ss = 1000; long mi = ss * 60; long hh = mi * 60; long dd = hh * 24; long day = ms / dd; long hour = (ms - day * dd) / hh; long minute = (ms - day * dd - hour * hh) / mi; long second = (ms - day * dd - hour * hh - minute * mi) / ss; long milliSecond = ms - day * dd - hour * hh - minute * mi - second * ss; String strDay = day < 10 ? "0" + day + "天" : "" + day + "天"; String strHour = hour < 10 ? "0" + hour + "小时" : "" + hour + "小时"; String strMinute = minute < 10 ? "0" + minute + "分" : "" + minute + "分"; String strSecond = second < 10 ? "0" + second + "秒" : "" + second + "秒"; String strMilliSecond = milliSecond < 10 ? "0" + milliSecond : "" + milliSecond; strMilliSecond = milliSecond < 100 ? "0" + strMilliSecond + "毫秒" : "" + strMilliSecond + " 毫秒"; return strDay + " " + strHour + ":" + strMinute + ":" + strSecond + " " + strMilliSecond; }}[b]ProcessFlvImg.java[/b]package com.ll19.flv;import java.io.File;import java.util.List;public class ProcessFlvImg { public String ffmpegpath = "D:\\video\\FFmpeg\\bin\\ffmpeg.exe"; // ffmpeg.exe的目录 public boolean processImg(String path) { File fi = new File(path); List commend = new java.util.ArrayList(); commend.add(ffmpegpath); commend.add("-i"); commend.add(path); commend.add("-y"); commend.add("-f"); commend.add("image2"); commend.add("-ss"); commend.add("38"); commend.add("-t"); commend.add("0.001"); commend.add("-s"); commend.add("320x240"); commend.add(fi.getPath() + ".jpg"); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); builder.start(); return true; } catch (Exception e) { e.printStackTrace(); return false; } }}
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