前言：
此时各位老铁们对“java截取视频”大约比较注意，小伙伴们都需要知道一些“java截取视频”的相关资讯。那么小编同时在网上网罗了一些有关“java截取视频””的相关知识，希望小伙伴们能喜欢，同学们一起来了解一下吧！1.配置ffmpeg的环境变量2.代码如下
import java.io.BufferedReader;import java.io.File;import java.io.IOException;import java.io.InputStreamReader;/** * @Author LinXin * 1.设置视频输出目录 * 2.获取上传视频的路径以及文件名 * 3.截取后缀名判断格式 * 4.ffmpeg不支持的格式先使用mencoder转成AVI格式 丢弃 * 5.AVI再转成flv格式，同时删除缓存文件 丢弃 */public class Video { //视频输出目录 private static final String OutSrc = "C:/Users/LinXin/Desktop/测试视频/flv/"; //截图输出目录 private static final String imageOutSrc = "C:/Users/LinXin/Desktop/测试视频/Screen/"; //视频类型 private static final String OutType = ".flv"; //图片类型 private static final String ImagesType = ".jpg"; //转码完视频路径 private static String videoOutSrc = null; public static void main(String[] args) { String fileName = "C:/Users/LinXin/Desktop/测试视频/video/1.mp4"; String type = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase(); File orginFile = new File(fileName); long start = System.currentTimeMillis(); if (!orginFile.exists()) { System.out.println("文件不存在"); } else { int i = checkType(type); if (i == 0) { String OutName = fileName.substring(fileName.lastIndexOf("/") +1, fileName.lastIndexOf(".")) + OutType; File file = new File(OutSrc + OutName); if (file.exists()) { System.out.println("文件已存在"); } else { String command = "cmd /c ffmpeg -i " + fileName + " -c:v copy -c:a copy " + OutSrc + OutName; if (procedure(command)) { File file1 = new File(fileName);// file1.delete(); System.out.println("Success"); videoOutSrc = OutSrc+OutName; String fileNameWithNoneType = fileName.substring(fileName.lastIndexOf("/") +1, fileName.lastIndexOf(".")); ScreenShot(videoOutSrc,fileNameWithNoneType); } else { System.out.println("Failure"); } } } else { System.out.println("文件类型不支持"); } } long end = System.currentTimeMillis(); System.out.println(""); System.out.println("耗时:"+(end-start)/1000); } //视频转码，图片截取 public static boolean procedure(String command) { boolean flag = false; try { Runtime rt = Runtime.getRuntime(); Process p = rt.exec(command); //一个线程去获取正常信息 new Thread(new Runnable() { BufferedReader infoReader = new BufferedReader(new InputStreamReader(p.getInputStream(), "GBK")); String line1 = null; @Override public void run() { try { while ((line1 = infoReader.readLine()) != null) { System.out.println(line1); } } catch (IOException e) { e.printStackTrace(); } } }).start(); //一个线程去获取错误信息 new Thread(new Runnable() { BufferedReader errorReader = new BufferedReader(new InputStreamReader(p.getErrorStream(), "GBK")); String line2 = null; @Override public void run() { try { while ((line2 = errorReader.readLine()) != null) { System.out.println(line2); } } catch (IOException e) { e.printStackTrace(); } } }).start(); int exitValue = p.waitFor(); if (exitValue == 0) { flag = true; } p.destroy(); System.out.println("Exited with error code " + exitValue); } catch (Exception e) { System.out.println(e.getMessage()); flag = false; } return flag; } //ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv,mkv等） private static int checkType(String type) { if (type.equals("asx")) { return 0; } else if (type.equals("asf")) { 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("mp4")) { return 0; } else if (type.equals("mov")) { return 0; } else if (type.equals("avi")) { return 0; } else if (type.equals("flv")) { return 0; } else if (type.equals("mkv")) { return 0; } return 1; } //视频截图 public static boolean ScreenShot(String videoPath,String imagesPath){ boolean flag = false; String command = "ffmpeg -ss 00:00:40 -t 0.001 -i "+videoPath+" -y -f image2 -q:v 2 -s 1920x1080 "+imageOutSrc+imagesPath+ImagesType; if(procedure(command)){ System.out.println("ScreentShot Success"); } return flag; }} 版权声明：
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标签： #java截取视频
