ffmpeg进行视频转换和截取

来源：互联网发布：php判断来路域名编辑：程序博客网时间：2024/05/22 12:07

package com.compress;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.down.ftps.FtpUitl;

public class ConvertVideo extends Thread{
public File inputPath;

 private String outputPath = ""; private String ffmpegPath = ""; public ConvertVideo(File inputPath, String outputPath){     this.inputPath = inputPath;     this.outputPath = outputPath;     this.ffmpegPath = "ffmpeg"; } public void run(){     File localFile = new File(outputPath);     if (!localFile.exists()){        localFile.mkdirs();    }     if (!checkfile(inputPath)) {         System.out.println(inputPath + " is not file");         return;     }     if (process()) {         System.out.println("ok");         inputPath.delete();     } } private boolean process() {     int type = checkContentType();     boolean status = false;     if (type == 0) {         System.out.println("----截取视频-----");         status = cutVideo(inputPath);//直接开始视频截取     } else if (type == 1) {         System.out.println("----插件无法直接截取该视频格式-----");         String avifilepath = processAVI(type);         if (avifilepath == null)             return false;// 没有得到avi格式         //status = processFLV(avifilepath);// 将avi转成flv格式     }     return status; } private int checkContentType() {     String type = inputPath.getAbsolutePath().substring(inputPath.getAbsolutePath().lastIndexOf(".") + 1, inputPath.getAbsolutePath().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(File file) {     if (!file.isFile()) {         return false;     }     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<String> commend = new ArrayList<String>();     commend.add(ffmpegPath + "mencoder");     commend.add(inputPath.getAbsolutePath());     commend.add("-oac");     commend.add("lavc");     commend.add("-lavcopts");     commend.add("acodec=mp3:abitrate=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(outputPath + "a.avi");     try {         ProcessBuilder builder = new ProcessBuilder();         Process process = builder.command(commend).redirectErrorStream(true).start();         new PrintStream(process.getInputStream());         new PrintStream(process.getErrorStream());         process.waitFor();         return outputPath + "a.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(File oldfilepath) {     if (!checkfile(inputPath)) {         System.out.println(oldfilepath + " is not file");         return false;     }     List<String> command = new ArrayList<String>();     command.add(ffmpegPath);     command.add("-i");     command.add(oldfilepath.getAbsolutePath());     command.add("-ab");     command.add("56");     command.add("-ar");     command.add("22050");     command.add("-qscale");     command.add("8");     command.add("-r");     command.add("15");     command.add("-s");     command.add("600x500");     command.add(outputPath + oldfilepath.getName());     try {         // 方案1

// Process videoProcess = Runtime.getRuntime().exec(ffmpegPath + “ffmpeg -i ” + oldfilepath
// + ” -ab 56 -ar 22050 -qscale 8 -r 15 -s 600x500 ”
// + outputPath + “a.flv”);

         // 方案2         Process videoProcess = new ProcessBuilder(command).redirectErrorStream(true).start();         //new PrintStream(videoProcess.getErrorStream()).start();         new PrintStream(videoProcess.getInputStream()).start();         videoProcess.waitFor();         System.out.println("结束");         inputPath.delete();         //FtpUitl.xb--;         return true;     } catch (Exception e) {         e.printStackTrace();         return false;     } } // 视频截取 @SuppressWarnings("unused")private boolean cutVideo(File oldfilepath) {     if (!checkfile(oldfilepath)) {         System.out.println(oldfilepath + " is not file");         return false;     }     List<String> command = new ArrayList<String>();     command.add("D:\\ffmpeg\\ffmpeg.exe");     command.add("-ss");     command.add("00:02:20");     command.add("-t");     command.add("00:01:20");     command.add("-i");     command.add(oldfilepath.getAbsolutePath());     command.add("-vcodec");     command.add("copy");     command.add("-acodec");     command.add("copy");     command.add("D:\\temp.mp4");     try {         // 方案2         Process videoProcess = new ProcessBuilder(command).redirectErrorStream(true).start();         new PrintStream(videoProcess.getInputStream()).start();         videoProcess.waitFor();         System.out.println("结束");         inputPath.delete();         return true;     } catch (Exception e) {         e.printStackTrace();         return false;     } } public static void main (String args[]){     File f = new File("D:\\ceshi.mp4");     System.out.println(f.isFile()); ConvertVideo convert = new ConvertVideo(null,null);     convert.cutVideo(f); }

}

class PrintStream extends Thread
{
java.io.InputStream __is = null;
public PrintStream(java.io.InputStream is)
{
__is = is;
}

 public void run()  {     try      {         while(this != null)          {             int _ch = __is.read();             if(_ch != -1)                  System.out.print((char)_ch);              else break;         }     }      catch (Exception e)      {         e.printStackTrace();     }  }

}

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