Java后台用ffmpeg命令给视频添加水印

1:先去ffmpeg官网下载其压缩包  http://ffmpeg.org/download.html

 

2.将压缩包拷贝到你想的任意位置并解压，正常解压出来的文件名过长，也可能会有空格，我们最好将文件夹下的文件拷贝出来到一个新的文件夹FFmpeg下

 

 

 3.配置环境变量

 

4.查看你的ffmpeg是否安装好，win+r 输入cmd，在里面输入ffmpeg -version，显示如下则安装成功

 

 

 5.在你的项目下新增工具类ProcessExec 一下是工具类里的代码

import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ProcessExec {

    private Process process;

    public void execute(Map<String,String> dto)
             {
                 StringBuffer waterlogo = new StringBuffer();
                 waterlogo.append("-i ");
                 if(null!=dto.get("input_path")&&StringUtils.isNotEmpty(dto.get("input_path"))){
                     waterlogo.append(dto.get("input_path"));
                 }
                 waterlogo.append("  -vf \"movie=");
                 if (null!=dto.get("logo")&&StringUtils.isNotEmpty(dto.get("logo"))){
                     waterlogo.append(dto.get("logo"));
                 }
                 waterlogo.append(",scale= 60: 30");
                 waterlogo.append(" [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]\" ");
                 if (null!=dto.get("video_converted_path")&&StringUtils.isNotEmpty(dto.get("video_converted_path"))){
                     waterlogo.append(dto.get("video_converted_path"));
                 }
                 System.out.println(waterlogo);
                 Runtime run = Runtime.getRuntime();
                 String ffmegPath = null;
                 if (StringUtils.isNotEmpty(dto.get("ffmpeg_path"))){
                     ffmegPath = dto.get("ffmpeg_path");
                 }
// 执行命
                 try {
                     java.lang.Process process = run.exec(ffmegPath+waterlogo);
// 异步读取输出
                     InputStream inputStream = process.getInputStream();
                     InputStream errorStream = process.getErrorStream();
                    /* BufferedReader br=new BufferedReader(new InputStreamReader(inputStream,"gbk"));
                     String str1="";
                     while((str=br.readLine())!=null){
                         System.out.println(str1);
                     }*/

                     ExecutorService service = Executors.newFixedThreadPool(2);

                    ResultStreamHandler inputStreamHandler = new ResultStreamHandler(inputStream);
                    ResultStreamHandler errorStreamHandler = new ResultStreamHandler(errorStream);

                    service.execute(inputStreamHandler);
                    service.execute(errorStreamHandler);

                    process.waitFor();
                    service.shutdownNow();
                 } catch (IOException e) {
                     e.printStackTrace();
                 } catch (InterruptedException e) {
                     e.printStackTrace();
                 }
             }


}

6.新增控制台输入代码 ResultStreamHandler 

 

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ResultStreamHandler
        implements Runnable {
    private InputStream inputStream;

    ResultStreamHandler( InputStream inputStream ) {
        this.inputStream = inputStream;
    }

    public void run() {

        BufferedReader bufferedReader = null;
        try {
            bufferedReader = new BufferedReader( new InputStreamReader( inputStream,"gbk" ) );
            String line = null;

            while ( ( line = bufferedReader.readLine() ) != null ) {
                System.out.println( line );
            }
        }
        catch ( Throwable t ) {
        }
        finally {
            try {
                bufferedReader.close();
            }
            catch ( IOException e ) {
            }
        }
    }

}

7.调用添加水印工具类代码

import java.util.HashMap;

public class test {

    public static void main(String[] args) {
        ProcessExec ps = new ProcessExec();
        HashMap<String, String> dto=new HashMap<String, String>();
        dto.put("ffmpeg_path","G:\\Program Files\\FFmpeg\\bin\\ffmpeg.exe ");//必填:此处是ffmpeg.exe所在位置，也就FFmpeg文件夹bin目录下的ffmpeg.exe
        dto.put("input_path", "G:\\05如何将牛人身上的技能都榨干？.mp4");//必填；此处是你要处理的视频位置
        dto.put("video_converted_path", "G:\\video\\TEST1.mp4");//必填；此处是完成添加水印后输入视频的位置并重新命名该视频
        dto.put("logo", "D\\\\:/20160512155254687.png");//必填；此处是你要添加的水印位置,注意此处图片位置一定要加上转译符，否则识别不了盘符
        ps.execute(dto);

    }

}

 

 

 

注：工具类源代码部分出自文章https://blog.csdn.net/lzhnightwind/article/details/84689159，本文对此进行了一点小小的改动。