Java convert video to thumbnail--ffmpeg

Java generates video thumbnails

FFmpeg is used to generate thumbnails for uploading videos.

On the Internet to find how to compile FFmpeg method

But it feels so complicated.

I found the compiled ffmpeg file on the csdn.

Experience the FFmpeg is very powerful, most popular video formats can generate thumbnails

Start now

First download FFmpeg decompression

Method One:

Create a BAT file

Start

E:/ffmpeg/bin/ffmpeg.exe-i%1-ss 20-vframes 1-r 1-ac 1-ab 2-s 160*120-f image2%2

Exit

Note the meaning of using the red bar mark

E:/ffmpeg/bin/ffmpeg.exe FFmpeg's Path

%1%2 and C languages are a bit similar to reserved locations for parameters

20 How many seconds to intercept the picture

Open MyEclipse, build a project, and a Java file

Package test;

Import java.io.IOException;

public class Ffmpeg {
public static void Main (string[] args) {
Video files
String Videorealpath = "f://ffmpeg//wildlife.wmv";
The path (output path)
String Imagerealpath = "F://ffmpeg//a.jpg";
String basepath = "F://ffmpeg";
try {
Calling a batch file
Runtime.getruntime (). EXEC (
"cmd/c Start" + basepath + "//ffmpeg.bat" + basepath + "+ Videorealpath +" "
+ Imagerealpath);
} catch (IOException e) {
E.printstacktrace ();
}
}

}

Method Two:

Do not need to create a bat file

/**
* Convert video to thumbnail successfully returns TRUE, Failure returns false
* @param exepath executable Path
* @param videopath Video Path
* @param imagepath image path after conversion
* @return
*/
public static Boolean videotoimg (String exepath,string videopath,string ImagePath) {
File File = new file (Videopath);
if (!file.exists ()) {
SYSTEM.ERR.PRINTLN ("path [" + Videopath + "] Corresponding video file does not exist!");
return false;
}
list<string> commands = new java.util.arraylist<string> ();
Commands.add (ExePath);
Commands.add ("-i");
Commands.add (Videopath);
Commands.add ("-ss");
How many seconds to intercept the image (1 seconds after this interception of the picture)
Commands.add ("1");
Commands.add ("-vframes");
Commands.add ("1");
Commands.add ("-R");
Commands.add ("1");
Commands.add ("-ac");
Commands.add ("1");
Commands.add ("-ab");
Commands.add ("2");
Commands.add ("-S");
Commands.add ("320*240");
Commands.add ("-f");
Commands.add ("Image2");
Commands.add (ImagePath);
try {
Processbuilder builder = new Processbuilder ();
Builder.command (commands);
Builder.start ();
return true;
} catch (Exception e) {
E.printstacktrace ();
return false;
}
}

  public static void main(String[] args) throws Exception{          //1.获取当前工程目录,获取ffmpeg.exe          File directory = new File( "." );          String root = directory.getCanonicalPath();          String ffmpegPath = root + "\\ffmpeg\\ffmpeg.exe" ;                   //2.看不懂的童鞋们去读幼儿园吧（执行了后，刷新一下工程，注意观察你的工程目录中的image文件夹里，和控制台打印内容，成功了吧！）          String videoPath=root + "\\video\\demo.mp4" ;          String imagePath=root + "\\image\\ceshi.jpg" ;                   System.out.println( "执行结果" +getVideoImage(ffmpegPath,videoPath,imagePath));               }

/**       * 获得视频缩略图，获取成功返回true，获取失败返回false       * @param ffmpegPath  是ffmpeg.exe存放的路径       * @param path   是视频文件的存放路径       * @param outImagePath 输出缩略图的保存路径       * @return       */      public static boolean getVideoImage(String ffmpegPath,String path,String outImagePath) {          File file = new File(path);          if (!file.exists()) { //判断视频文件是否存在              System.err.println( "路径[" + path + "]对应的视频文件不存在!" );              return false ;          }          //设置参数          List<string> commands = new java.util.ArrayList<string>();          commands.add(ffmpegPath); //这里设置ffmpeg.exe存放的路径          commands.add( "-i" );          commands.add(path); //这里是设置要截取缩略图的视频的路径          commands.add( "-y" );          commands.add( "-f" );          commands.add( "image2" );          commands.add( "-ss" );          commands.add( "2" ); //这里设置的是要截取视频开始播放多少秒后的图，可以自己设置时间          commands.add( "-t" );          commands.add( "0.001" );          commands.add( "-s" );          commands.add( "320x240" ); //这里设置输出图片的大小          commands.add(outImagePath); //这里设置输出的的保存路径               try {              //截取缩略图并保存               ProcessBuilder builder = new ProcessBuilder();              builder.command(commands);              builder.start();              return true ;          } catch (Exception e) {              e.printStackTrace();              return false ;          }      } }

Java convert video to thumbnail--ffmpeg