用 java 实现 MinIO 文件上传，附带视频文件截图，通过 MinIo 将视频封面和视频上传到服务器
最编程
2024-03-10 11:53:39
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package com.whrfjd.wuhanzgh.util;
import cn.hutool.core.io.FileUtil;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
/**
* 视频工具类
*
* @Author: szw
* @Date: 2020/7/9 9:42
*/
public class VideoUtil {
private static final Logger LOGGER = LoggerFactory.getLogger(VideoUtil.class);
public static void main(String[] args) {
System.out.println("视频加密---------------------------"+new BCryptPasswordEncoder().encode("rainbow-whrfjd.oss-cn-shanghai.aliyuncs.com/video/20200818/d06e306d3f5c49768ef7c7118eb66253.mp4"));
// Map<String, Object> screenshot = getScreenshot("D:\\项目备份\\华林梦想-视频素材\\技能操作视频素材\\123.mp4");
// LOGGER.debug("-------------------------screenshot"+screenshot);
// MultipartFile multipartFile = new MockMultipartFile("aaa.jpg","aaa.jpg","jpg",inputStream);
// File tofile = new File(multipartFile.getOriginalFilename());
// FileUtils.copyInputStreamToFile(multipartFile.getInputStream(),tofile);
// System.out.println(tofile);
// String path = tofile.getPath();
// if (tofile.exists()){
// tofile.delete();
// }
System.out.println("1341654");
}
/**
* 通过Javacv的方式获取视频截图
*
* @param deviceFile 视频文件路径
* @return Map<String, Object>
*/
public static Map<String, Object> getScreenshot(File deviceFile) {
try {
LOGGER.debug("截取视频截图开始：" + System.currentTimeMillis());
Map<String, Object> result = new HashMap<String, Object>();
FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(deviceFile);
String fileName = FileUtil.getName(deviceFile);
String absolutePath = FileUtil.getAbsolutePath(deviceFile);
// // 第一帧图片存储位置
// String targerFilePath = filePath.substring(0, filePath.lastIndexOf("\\"));
// // 视频文件名
// String fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);
// 图片名称
String targetFileName = fileName.substring(0, fileName.lastIndexOf("."));
// LOGGER.debug("视频路径是：" + targerFilePath);
// LOGGER.debug("视频文件名：" + fileName);
LOGGER.debug("图片名称是：" + targetFileName);
grabber.start();
//设置视频截取帧（默认取第一帧）
Frame frame = grabber.grabImage();
int i = 0;
int lenght = grabber.getLengthInFrames();
Frame f = null;
while (i < lenght) {
// 过滤前300帧，避免出现全黑的图片，依自己情况而定
// f = grabber.grabFrame();
f=grabber.grabImage();
if ((i > 150) && (f.image != null)) {
break;
}
i++;
}
//视频旋转度
String rotate = grabber.getVideoMetadata("rotate");
Java2DFrameConverter converter = new Java2DFrameConverter();
//绘制图片
BufferedImage bi = converter.getBufferedImage(f);
if (rotate != null) {
// 旋转图片
bi = rotate(bi, Integer.parseInt(rotate));
}
//图片的类型
String imageMat = "jpg";
//图片的完整路径
String imagePath = absolutePath + File.separator + targetFileName + "." + imageMat;
//创建文件
File output = new File(imagePath);
ImageIO.write(bi, imageMat, output);
// //拼接Map信息
// result.put("videoWide", bi.getWidth());
// result.put("videoHigh", bi.getHeight());
// long duration = grabber.getLengthInTime() / (1000 * 1000);
// result.put("rotate", StringUtils.isBlank(rotate) ? "0" : rotate);
// result.put("format", grabber.getFormat());
result.put("imgPath", output.getPath());
// result.put("time", duration);
// LOGGER.debug("视频的宽:" + bi.getWidth());
// LOGGER.debug("视频的高:" + bi.getHeight());
// LOGGER.debug("视频的旋转度：" + rotate);
// LOGGER.debug("视频的格式：" + grabber.getFormat());
// LOGGER.debug("此视频时长（s/秒）：" + duration);
grabber.stop();
LOGGER.debug("截取视频截图结束：" + System.currentTimeMillis());
return result;
} catch (Exception e) {
// LOGGER.error("VideoUtil getScreenshot fail: {}", ExceptionStackTrace.printStackTrace(e));
return null;
}
}
/**
* 截取视频的某一帧作为封面图片 方法
*/
public static Map<String, Object> getScreenshot(String filePath) {
try {
LOGGER.info("截取视频截图开始：" + System.currentTimeMillis());
Map<String, Object> result = new HashMap<String, Object>();
FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(filePath);
// 第一帧图片存储位置
String targerFilePath = filePath.substring(0, filePath.lastIndexOf(File.separator));
// 视频文件名
String fileName = filePath.substring(filePath.lastIndexOf(File.separator) + 1);
// 图片名称
String targetFileName = fileName.substring(0, fileName.lastIndexOf("."));
LOGGER.info("视频路径是：" + targerFilePath);
LOGGER.info("视频文件名：" + fileName);
LOGGER.info("图片名称是：" + targetFileName);
grabber.start();
//设置视频截取帧（默认取第一帧）
// Frame frame = grabber.grabImage();
int i = 0;
int lenght = grabber.getLengthInFrames();
LOGGER.info("----------------------------length="+lenght);
Frame f = null;
while (i < lenght) {
// 过滤前300帧，避免出现全黑的图片，依自己情况而定
// f = grabber.grabFrame();
f=grabber.grabImage();
// LOGGER.info("-----------------------------f="+f);
if ((i > 500) && (f.image != null)) {
break;
}
i++;
}
//视频旋转度
String rotate = grabber.getVideoMetadata("rotate");
LOGGER.info("-----------------------------------------rotate="+rotate);
Java2DFrameConverter converter = new Java2DFrameConverter();
//绘制图片
BufferedImage bi = converter.getBufferedImage(f);
LOGGER.info("----------------------------------bi="+bi);
if (rotate != null) {
// 旋转图片
bi = rotate(bi, Integer.parseInt(rotate));
LOGGER.info("------------------------------bi="+bi);
}
//图片的类型
String imageMat = "jpg";
LOGGER.info("---------------------------------targerFilePath="+targerFilePath);
LOGGER.info("---------------------------------File.separator="+File.separator);
LOGGER.info("---------------------------------targetFileName="+targetFileName);
LOGGER.info("---------------------------------imageMat="+imageMat);
//图片的完整路径
String imagePath = targerFilePath + File.separator + targetFileName + "." + imageMat;
LOGGER.info("---------------------------------imagePath="+imagePath);
//创建文件
File output = new File(imagePath);
ImageIO.write(bi, imageMat, output);
LOGGER.info("-----------------------------------------output="+output);
LOGGER.info("----------------------------------------------output.getPath()="+output.getPath());
// //拼接Map信息
// result.put("videoWide", bi.getWidth());
// result.put("videoHigh", bi.getHeight());
// long duration = grabber.getLengthInTime() / (1000 * 1000);
// result.put("rotate", StringUtils.isBlank(rotate) ? "0" : rotate);
// result.put("format", grabber.getFormat());
result.put("imgPath", output.getPath());
// result.put("time", duration);
// LOGGER.debug("视频的宽:" + bi.getWidth());
// LOGGER.debug("视频的高:" + bi.getHeight());
// LOGGER.debug("视频的旋转度：" + rotate);
// LOGGER.debug("视频的格式：" + grabber.getFormat());
// LOGGER.debug("此视频时长（s/秒）：" + duration);
grabber.stop();
LOGGER.info("截取视频截图结束：" + System.currentTimeMillis());
return result;
} catch (Exception e) {
LOGGER.error("VideoUtil getScreenshot fail: {}", e);
return null;
}
}
/**
* 通过Javacv的方式获取视频截图
*linux操作系统方法
* @param filePath 视频文件路径
* @return Map<String, Object>
*/
// public static Map<String, Object> getScreenshot(String filePath) {
// try {
// System.out.println("截取视频截图开始");
// LOGGER.debug("截取视频截图开始：" + System.currentTimeMillis());
// Map<String, Object> result = new HashMap<String, Object>();
// FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(filePath);
//
// // 第一帧图片存储位置
// String targerFilePath = filePath.substring(0, filePath.lastIndexOf("/"));
// System.out.println("----------------------targerFilePath="+targerFilePath);
// // 视频文件名
// String fileName = filePath.substring(filePath.lastIndexOf("/") + 1);
// System.out.println("----------------------fileName="+fileName);
// // 图片名称
// String targetFileName = fileName.substring(0, fileName.lastIndexOf("."));
// System.out.println("视频路径是：" + targerFilePath);
// System.out.println("视频文件名：" + fileName);
// System.out.println("图片名称是：" + targetFileName);
// LOGGER.debug("视频路径是：" + targerFilePath);
// LOGGER.debug("视频文件名：" + fileName);
// LOGGER.debug("图片名称是：" + targetFileName);
//
// grabber.start();
// //设置视频截取帧（默认取第一帧）
// Frame frame = grabber.grabImage();
// int i = 0;
// int lenght = grabber.getLengthInFrames();
// Frame f = null;
// while (i < lenght) {
// // 过滤前300帧，避免出现全黑的图片，依自己情况而定
f = grabber.grabFrame();
// f=grabber.grabImage();
// if ((i > 300) && (f.image != null)) {
// break;
// }
// i++;
// }
//
// //视频旋转度
// String rotate = grabber.getVideoMetadata("rotate");
// Java2DFrameConverter converter = new Java2DFrameConverter();
// //绘制图片
// BufferedImage bi = converter.getBufferedImage(f);
// if (rotate != null) {
// // 旋转图片
// bi = rotate(bi, Integer.parseInt(rotate));
// }
// //图片的类型
// String imageMat = "jpg";
// //图片的完整路径
// String imagePath = targerFilePath + File.separator + targetFileName + "." + imageMat;
// //创建文件
// File output = new File(imagePath);
// ImageIO.write(bi, imageMat, output);
//
//拼接Map信息
result.put("videoWide", bi.getWidth());
result.put("videoHigh", bi.getHeight());
long duration = grabber.getLengthInTime() / (1000 * 1000);
result.put("rotate", StringUtils.isBlank(rotate) ? "0" : rotate);
result.put("format", grabber.getFormat());
// result.put("imgPath", output.getPath());
result.put("time", duration);
LOGGER.debug("视频的宽:" + bi.getWidth());
LOGGER.debug("视频的高:" + bi.getHeight());
LOGGER.debug("视频的旋转度：" + rotate);
LOGGER.debug("视频的格式：" + grabber.getFormat());
LOGGER.debug("此视频时长（s/秒）：" + duration);
// grabber.stop();
// System.out.println("截取视频截图结束：" + System.currentTimeMillis());
// LOGGER.debug("截取视频截图结束：" + System.currentTimeMillis());
// return result;
// } catch (Exception e) {
LOGGER.error("VideoUtil getScreenshot fail: {}", ExceptionStackTrace.printStackTrace(e));
// return null;
// }
// }
/**
* 根据视频旋转度来调整图片
*
* @param src BufferedImage
* @param angel angel 视频旋转度
* @return BufferedImage
*/
public static BufferedImage rotate(BufferedImage src, int angel) {
int src_width = src.getWidth(null);
int src_height = src.getHeight(null);
int type = src.getColorModel().getTransparency();
Rectangle rect_des = calcRotatedSize(new Rectangle(new Dimension(src_width, src_height)), angel);
BufferedImage bi = new BufferedImage(rect_des.width, rect_des.height, type);
Graphics2D g2 = bi.createGraphics();
g2.translate((rect_des.width - src_width) / 2, (rect_des.height - src_height) / 2);
g2.rotate(Math.toRadians(angel), src_width / 2, src_height / 2);
g2.drawImage(src, 0, 0, null);
g2.dispose();
return bi;
}
/**
* 计算图片旋转大小
*
* @param src Rectangle
* @param angel int
* @return Rectangle
*/
public static Rectangle calcRotatedSize(Rectangle src, int angel) {
if (angel >= 90) {
if (angel / 90 % 2 == 1) {
int temp = src.height;
src.height = src.width;
src.width = temp;
}
angel = angel % 90;
}
double r = Math.sqrt(src.height * src.height + src.width * src.width) / 2;
double len = 2 * Math.sin(Math.toRadians(angel) / 2) * r;
double angel_alpha = (Math.PI - Math.toRadians(angel)) / 2;
double angel_dalta_width = Math.atan((double) src.height / src.width);
double angel_dalta_height = Math.atan((double) src.width / src.height);
int len_dalta_width = (int) (len * Math.cos(Math.PI - angel_alpha - angel_dalta_width));
int len_dalta_height = (int) (len * Math.cos(Math.PI - angel_alpha - angel_dalta_height));
int des_width = src.width + len_dalta_width * 2;
int des_height = src.height + len_dalta_height * 2;
return new Rectangle(new Dimension(des_width, des_height));
}
}