package com.dji.sample.media.util;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import com.dji.sample.territory.service.impl.TbFjServiceImpl;
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import com.drew.imaging.ImageMetadataReader;
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import com.drew.imaging.ImageProcessingException;
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import com.drew.imaging.jpeg.JpegMetadataReader;
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import com.drew.metadata.Directory;
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import com.drew.metadata.Metadata;
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import com.drew.metadata.Tag;
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import com.drew.metadata.exif.ExifIFD0Directory;
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import com.drew.metadata.xmp.XmpDirectory;
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import lombok.extern.slf4j.Slf4j;
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import java.io.File;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.Map;
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@Slf4j
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public class ImgUtil {
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public static Map<String, String> readPicExifInfo(File file)
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throws ImageProcessingException, IOException {
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Map<String, String> map = new HashMap<>();
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Metadata metadata = ImageMetadataReader.readMetadata(file);
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for (Directory directory : metadata.getDirectories()) {
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for (Tag tag : directory.getTags()) {
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// 将Tag名称和描述添加到Map中
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map.put(tag.getTagName(), tag.getDescription());
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}
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if (directory.hasErrors()) {
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for (String error : directory.getErrors()) {
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log.error(error);
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}
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}
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}
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return map;
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}
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public static String getXmp(File file) {
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try {
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Metadata metadata = JpegMetadataReader.readMetadata(file);
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for (Directory directory : metadata.getDirectories()) {
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if (directory instanceof XmpDirectory) {
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XmpDirectory xmpDirectory = (XmpDirectory) directory;
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Map<String, String> xmpProperties = xmpDirectory.getXmpProperties();
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return JSON.toJSONString(xmpProperties);
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}
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}
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} catch (Exception e) {
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log.error(String.valueOf(e));
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}
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return null;
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}
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public static String[] getImageParam(File file) {
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try {
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String[] param = new String[5];
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Metadata metadata = JpegMetadataReader.readMetadata(file);
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for (Directory directory : metadata.getDirectories()) {
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//获取图片的Exif拍摄时间
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if (directory instanceof ExifIFD0Directory) {
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ExifIFD0Directory exifIFD0Directory = (ExifIFD0Directory) directory;
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exifIFD0Directory.getName();
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param[4] = JSON.toJSONString(exifIFD0Directory.getDate(306));
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}
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if (directory instanceof XmpDirectory) {
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XmpDirectory xmpDirectory = (XmpDirectory) directory;
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Map<String, String> xmpProperties = xmpDirectory.getXmpProperties();
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System.out.println(xmpProperties);
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String degree = xmpProperties.get("drone-dji:GimbalYawDegree");
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String lat = xmpProperties.get("drone-dji:GpsLatitude");
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String lon = xmpProperties.get("drone-dji:GpsLongtitude");
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String relativeAltitude = xmpProperties.get("drone-dji:RelativeAltitude");
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param[0] = degree;
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param[1] = lat;
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param[2] = lon;
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param[3] = relativeAltitude;
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System.out.println(Arrays.toString(param));
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}
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}
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return param;
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} catch (Exception e) {
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log.error(String.valueOf(e));
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return null;
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}
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}
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/**
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* 获取图片的XMP信息
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*
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* @param file 图片文件
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* @return 包含图片XMP信息的JSONObject对象
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* @throws ImageProcessingException 图像处理异常
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* @throws IOException 输入输出异常
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*/
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public static Object getInfo(File file) throws ImageProcessingException, IOException {
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// 从文件中提取XMP信息
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String str =getXmp(file);
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// 解析 JSON 字符串为 JSON 对象
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JSONObject jsonObject = JSON.parseObject(str);
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// 获取指定的键值对
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String gimbalYawDegree = jsonObject.getString("drone-dji:GimbalYawDegree");
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String flightYawDegree = jsonObject.getString("drone-dji:FlightYawDegree");
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String flightPitchDegree = jsonObject.getString("drone-dji:FlightPitchDegree");
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String gimbalPitchDegree = jsonObject.getString("drone-dji:GimbalPitchDegree");
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// 读取图片的XMP信息中的焦距
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String mm=readPicExifInfo(file).get("Focal Length 35");
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// 构造新的 JSON 对象
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JSONObject newJsonObject = new JSONObject();
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// 将获取到的信息添加到新的 JSON 对象中
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newJsonObject.put("GimbalYawDegree", gimbalYawDegree);
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newJsonObject.put("FlightYawDegree", flightYawDegree);
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newJsonObject.put("FlightPitchDegree", flightPitchDegree);
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newJsonObject.put("GimbalPitchDegree", gimbalPitchDegree);
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newJsonObject.put("FocalLength", mm);
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// 返回包含图片XMP信息的JSON对象
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return newJsonObject;
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}
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}
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