java视频格式转换

package com.dragonsoft.slxf.utils;

import cn.hutool.system.OsInfo;
 org.slf4j.Logger;
 org.slf4j.LoggerFactory;

 java.io.BufferedReader;
 java.io.File;
 java.io.InputStream;
 java.io.InputStreamReader;
 java.util.ArrayList;
 java.util.List;

public class ConvertVideoUtils {

    private static Logger logger = LoggerFactory.getLogger(ConvertVideoUtils.);

    private String inputPath;

     String outputPath;

     String ffmpegPath;

     String fileName;

    public ConvertVideoUtils(String inputPath,String outputPath,String ffmpegPath,String fileName) {
        this.inputPath = inputPath;
        this.outputPath = outputPath;
        this.ffmpegPath = ffmpegPath;
        this.fileName = fileName;
    }

     Boolean setVoidInfos() {
        if (!checkfile(inputPath)) {
            logger.info(inputPath + " is not file");
            return false;
        }
        if (process(inputPath,ffmpegPath,outputPath,fileName)) {
            logger.info("ok"true;
    }


    static boolean process(String inputPath,1)">int type = checkContentType(inputPath);
        boolean status = ;
        logger.info("直接转成mp4格式");
        status = processMp4(inputPath,fileName);// 直接转成mp4格式
        return status;
    }


    int checkContentType(String inputPath) {
        String type = inputPath.substring(inputPath.lastIndexOf(".") + 1,inputPath.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"if (type.equals("wmv"if (type.equals("3gp"if (type.equals("mov"if (type.equals("mp4"if (type.equals("asf"if (type.equals("asx"if (type.equals("flv" 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.
        if (type.equals("wmv9"return 1if (type.equals("rm"if (type.equals("rmvb"return 9;
    }

     checkfile(String inputPath) {
        File file = new File(inputPath);
        file.isFile()) {
             processMp4(String oldfilepath,1)">checkfile(oldfilepath)) {
            logger.info(oldfilepath + " is not file";
        }
        List<String> command = new ArrayList<>();
        command.add(ffmpegPath);
        command.add("-i");
        command.add(oldfilepath);
        command.add("-c:v");
        command.add("libx264");
        command.add("-mbd");
        command.add("0");
        command.add("-c:a");
        command.add("aac");
        command.add("-strict");
        command.add("-2");
        command.add("-pix_fmt");
        command.add("yuv420p");
        command.add("-movflags");
        command.add("faststart");
        command.add(outputPath + fileName + ".mp4");
        try {
             (OSinfo.isWindows()) {
                Process videoProcess = new ProcessBuilder(command).redirectErrorStream().start();
                 PrintStream(videoProcess.getErrorStream()).start();
                 PrintStream(videoProcess.getInputStream()).start();
                videoProcess.waitFor();
            } else {
                logger.info("linux开始");
                StringBuilder test =  StringBuilder();
                for (String s : command) test.append(s).append(" ");
                logger.info(test.toString());
                 执行命令
                Process p = Runtime.getRuntime().exec(test.toString());
                 取得命令结果的输出流
                InputStream fis = p.getInputStream();
                 用一个读输出流类去读
                InputStreamReader isr =  InputStreamReader(fis);
                 用缓冲器读行
                BufferedReader br =  BufferedReader(isr);
                String line = null;
                 直到读完为止
                while ((line = br.readLine()) != ) {
                    logger.info("视频转换:{}"catch (Exception e) {
            e.printStackTrace();
            ;
        }
    }


    void main(String[] args) {
        String ffmpegPath = "D:/upload/";
        String outputPath = "D:/upload/ffmpeg/ffmpeg.exe";
        String inputPath = "D:/upload/8ab0c280f0f149c78c3b205d905898c7@222221.avi";
        String fileName = "22222";
        ConvertVideoUtils convertVideoUtils =  ConvertVideoUtils(inputPath,fileName);
        convertVideoUtils.setVoidInfos();
    }



}