public class ConvertVideo {

	/**
	 * @param args
	 */
	//private final static String PATH="c:\\ffmpeg\\input\\test.avi";
	private static String inputPath="";
	private static String outputPath="";
	private static String ffmpegPath="";
	public static void main(String[] args) {
		getPath("D:\\apache-tomcat-7.0.55\\webapps\\ResourcesShare\\WEB-INF\\uploadFile\\0011.51CTO學院-struts2hibernatespring整合第十一章視訊.mp4","D:\\apache-tomcat-7.0.55\\webapps\\ResourcesShare\\tools\\ffmpeg","D:\\apache-tomcat-7.0.55\\webapps\\ResourcesShare\\tools\\ffmpeg\\output");
		if(!checkfile(inputPath)){
			System.out.println(inputPath+" is not file");
			return;
		}
		if(process()){
			System.out.println("ok");
		}

	}
	private static void getPath(String input,String ffmpeg,String output){
		inputPath=input;
		outputPath=output;
		ffmpegPath=ffmpeg;
	}
	public static void getRun(String inputPath,String ffmegPath,String outputPath){
		System.out.println(inputPath+"  "+ffmegPath+" "+outputPath);
		getPath(inputPath,ffmegPath,outputPath);
		if(!checkfile(inputPath)){
			System.out.println(inputPath+" is not file");
			return;
		}
		if(process()){
			System.out.println("ok");
		}
	}
	
	
	

	private static boolean process(){
		int type=checkContentType();
		boolean status=false;
		if(type==0){
			System.out.println("直接將檔案轉換為flv檔案");
			status=processFLV(inputPath);//直接將檔案轉為flv檔案
			
		}
		else if(type==1){
			System.out.println("先轉成avi");
			String avifilepath=processAVI(type);
			if(avifilepath==null){
				return false;//avi檔案沒有得到	
			}
			status=processFLV(avifilepath);
		}
		return status;
		
	}
	
	private static int checkContentType(){
		String type=inputPath.substring(inputPath.lastIndexOf(".")+1,inputPath.length()).toLowerCase();
		//ffmpeg能解難析的格式 ：（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("asx")){
			return 0;
		}else if(type.equals("asf")){
			return 0;
		}else if(type.equals("wmv")){
			return 0;
		}else if(type.equals("3gp")){
			return 0;
		}else if(type.equals("mp4")){
			return 0;
		}else if(type.equals("mov")){
			return 0;
		}else if(type.equals("avi")){
			return 0;
		}else if(type.equals("flv")){
			return 0;
		}
		//對ffmpeg無法解析的檔案格式（wmv9,rm,rmvb等）
		//可以先用別的工具（mencoder）轉換為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;
	}
	
	public static boolean checkfile(String path){
		File file=new File(path);
		if(!file.isFile()){
			return false;
		}
		return true;
	}
	
	//對ffmpeg無法解析匆檔案格式（wmv9，rm,rmvb等，可以先用別的（moncoder）轉換為avi）
	private static String processAVI(int type){
		List<String> commend=new ArrayList<String>();
		commend.add(ffmpegPath+"\\mencoder");
		commend.add(inputPath);
		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();
			builder.command(commend);
			builder.start();
			return outputPath+"a.avi";
		}catch(Exception e){
			e.printStackTrace();
			return null;
		}
		
		
	}
	
	
	//ffmpeg能解析格式：（asx,asf,mpg,wmv,3gp.mp4.mov,avi.flv等）
	private static boolean processFLV(String oldfilepath){
		if(!checkfile(inputPath)){
			System.out.println(oldfilepath+"is not file");
			return false;
		}
		//檔案命名
		//Calendar c=Calendar.getInstance();
		//String savename=String.valueOf(c.getTimeInMillis())+Math.round(Math.random()*100000);
		List<String> commend=new ArrayList<String>();
		commend.add(ffmpegPath+"\\ffmpeg");
		commend.add("-i");
		commend.add(oldfilepath);
		commend.add("-ab");
		commend.add("56");
		commend.add("-ar");
		commend.add("22050");
		commend.add("-qscale");
		commend.add("8");
		commend.add("-r");
		commend.add("15");
		commend.add("-s");
		commend.add("600*500");
		commend.add(FileUtil.changeType(inputPath, "flv"));
		
		try{
//			Runtime runtime=Runtime.getRuntime();
//			Process proce=null;
//			String cmd="";
//			String cut="    c:\\ffmpeg\\ffmpeg.exe  -i  "
//			+oldfilepath
//			+"   -y   -f  image2   -ss   8   -t   0.001   -s   600*500   c:\\ffmpeg\\output\\"
//			+" a.jpg";
//			String cutCmd=cmd+cut;
//			proce=runtime.exec(cutCmd);
			
			
			
				Process videoProcess=new ProcessBuilder(commend).redirectErrorStream(true).start();
				new ClearOutput(videoProcess.getErrorStream()).start();
				new ClearOutput(videoProcess.getInputStream()).start();
			
				videoProcess.waitFor();
			
				FileUtil.delFile(inputPath);
			return true;
			
		}catch(Exception e){
			e.printStackTrace();
			return false;
		}
	}
	
	
	static class ClearOutput extends Thread{
		
		InputStream in=null;
		public ClearOutput(InputStream in){
			this.in=in;
		}
		public void run() {
			int len=-1;
			try{
				while((len=in.read())!=-1){
					System.out.println(len);
				}
			}catch(Exception e){
				e.printStackTrace();
			}
			
		}
	}
	
	
	
	

}
 

	//獲取檔案字尾名
	public static String getType(String fileName){
		return fileName.substring(fileName.lastIndexOf(".")+1);
	}
	
	//改檔案字尾名
	public static String changeType(String fileName,String type){
		
		return fileName.substring(0,fileName.lastIndexOf(".")+1)+type;
	}
	//刪除檔案
	public static void delFile(String path){
		File file=new File(path);
		if(file.isFile()){
			file.delete();
		}
	}