java 提取图片与视频的元数据

Bertha 。 2022-03-25 03:18 445阅读 0赞

## 代码 ##

jar包:[https://download.csdn.net/download/qq\_40971752/10925501][https_download.csdn.net_download_qq_40971752_10925501]

Exif支持的格式有,这是github里的项目介绍,有兴趣可以看看[https://github.com/drewnoakes/metadata-extractor][https_github.com_drewnoakes_metadata-extractor]

官网:[https://drewnoakes.com/code/exif/][https_drewnoakes.com_code_exif]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTcxNzUy_size_16_color_FFFFFF_t_70][]

这是ImageMetadataReader类里面的源码,只需要用这个类就能读取其他格式文件的元数据

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTcxNzUy_size_16_color_FFFFFF_t_70 1][]

import org.junit.Test;
    import org.springframework.boot.test.context.SpringBootTest;
    
    import com.drew.imaging.ImageProcessingException;
    import com.drew.metadata.Directory;
    import com.drew.metadata.Metadata;
    
    import com.drew.imaging.ImageMetadataReader;
    
    @SpringBootTest
    public class ExifTest {
    
    	@Test
    	public void test() throws ImageProcessingException, IOException {
    		// File file = new
    		// File("C:/Users/yunxun/Desktop/测试文档/format/66_635142_271cb2f6a8550e7.raw");
    		// File file = new File("C:/Users/yunxun/Desktop/测试文档/format/1.bmp");
    		// File file = new File("C:/Users/yunxun/Desktop/测试文档/format/1.gif");
    		// File file = new File("C:/Users/yunxun/Desktop/测试文档/format/1.tif");
    		// File file = new File("C:/Users/yunxun/Desktop/测试文档/format/1.png");
    			File file = new File("C:/Users/yunxun/Desktop/测试文档/format/1.jpg");
            //File file = new
            //File("C:/Users/yunxun/Desktop/测试文档/format/chichen.mp4");
    		//File file = new File("C:/Users/yunxun/Desktop/测试文档/format/D54A57D5BFA88B517F04776EB4122250.avi");
    		// File file = new
    		// File("C:/Users/yunxun/Desktop/测试文档/format/SampleVideo_320x240_30mb.3gp");
    		// // 失败
    
    		Metadata data = ImageMetadataReader.readMetadata(file);
    		// Mp4MetadataReader.readMetadata(file);
    		for (Directory di : data.getDirectories()) {
    			for (com.drew.metadata.Tag tag : di.getTags()) {
    				if (tag.getTagName().contains("Unknown")) {
    					System.err.println("未知标签" + tag.getTagName());
    				} else {
    					System.out.println(tag.toString());
    				}
    			}
    		}
    	}
    }

下面是读取出来的结果

\[JPEG\] Compression Type - Baseline  
\[JPEG\] Data Precision - 8 bits  
\[JPEG\] Image Height - 300 pixels  
\[JPEG\] Image Width - 480 pixels  
\[JPEG\] Number of Components - 3  
\[JPEG\] Component 1 - Y component: Quantization table 0, Sampling factors 2 horiz/2 vert  
\[JPEG\] Component 2 - Cb component: Quantization table 1, Sampling factors 1 horiz/1 vert  
\[JPEG\] Component 3 - Cr component: Quantization table 1, Sampling factors 1 horiz/1 vert  
\[JFIF\] Version - 1.1  
\[JFIF\] Resolution Units - inch  
\[JFIF\] X Resolution - 72 dots  
\[JFIF\] Y Resolution - 72 dots  
\[JFIF\] Thumbnail Width Pixels - 0  
\[JFIF\] Thumbnail Height Pixels - 0  
\[Exif IFD0\] Image Description - title  
\[Exif IFD0\] Artist - 黑土  
\[Exif IFD0\] Rating - 5  
\[Exif IFD0\] Copyright - 黑土工作室  
未知标签Unknown tag (0x4749)  
\[Exif IFD0\] Windows XP Title - title  
\[Exif IFD0\] Windows XP Comment - 开会  
\[Exif IFD0\] Windows XP Author - 黑土  
\[Exif IFD0\] Windows XP Keywords - 没得标记  
\[Exif IFD0\] Windows XP Subject - 蓝色主题  
\[Exif IFD0\] Padding - \[1996 values\]  
\[Exif SubIFD\] Exposure Program - Manual control  
\[Exif SubIFD\] ISO Speed Ratings - 2  
\[Exif SubIFD\] Date/Time Original - 2019:01:14 16:38:44  
\[Exif SubIFD\] Date/Time Digitized - 2019:01:14 16:38:44  
\[Exif SubIFD\] Metering Mode - Average  
\[Exif SubIFD\] White Balance - Daylight  
\[Exif SubIFD\] Flash - Flash did not fire  
\[Exif SubIFD\] Sub-Sec Time Original - 80  
\[Exif SubIFD\] Sub-Sec Time Digitized - 80  
\[Exif SubIFD\] Padding - \[2060 values\]  
\[XMP\] XMP Value Count - 20  
\[Huffman\] Number of Tables - 4 Huffman tables  
\[File Type\] Detected File Type Name - JPEG  
\[File Type\] Detected File Type Long Name - Joint Photographic Experts Group  
\[File Type\] Detected MIME Type - image/jpeg  
\[File Type\] Expected File Name Extension - jpg  
\[File\] File Name - 1.jpg  
\[File\] File Size - 39623 bytes  
\[File\] File Modified Date - 星期一 一月 14 16:51:05 +08:00 2019

[https_download.csdn.net_download_qq_40971752_10925501]: https://download.csdn.net/download/qq_40971752/10925501
[https_github.com_drewnoakes_metadata-extractor]: https://github.com/drewnoakes/metadata-extractor
[https_drewnoakes.com_code_exif]: https://drewnoakes.com/code/exif/
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTcxNzUy_size_16_color_FFFFFF_t_70 1]: /images/20220325/846d2f5284fb467cb0e6185241627db4.png