1. WIKI教程
2. 学习Apache Tika
3. TIKA - Extracting mp4 文件

TIKA - Extracting mp4 文件

以下是从mp4文件中提取内容和元数据的程序 -

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.mp4.MP4Parser;
import org.apache.tika.sax.BodyContentHandler;
import org.xml.sax.SAXException;
public class Mp4Parse {
   public static void main(final String[] args) throws IOException,SAXException, TikaException {
      //detecting the file type
      BodyContentHandler handler = new BodyContentHandler();
      Metadata metadata = new Metadata();
      FileInputStream inputstream = new FileInputStream(new File("example.mp4"));
      ParseContext pcontext = new ParseContext();
      //Html parser
      MP4Parser MP4Parser = new MP4Parser();
      MP4Parser.parse(inputstream, handler, metadata,pcontext);
      System.out.println("Contents of the document:  :" + handler.toString());
      System.out.println("Metadata of the document:");
      String[] metadataNames = metadata.names();
      for(String name : metadataNames) {
         System.out.println(name + ": " + metadata.get(name));
      }
   }  
}

将上面的代码保存为JpegParse.java，并使用以下命令从命令提示符编译它 -

javac Mp4Parse.java
java Mp4Parse 

下面给出了Example.mp4文件属性的快照。

执行上述程序后，您将获得以下输出 -

Output -

<b class="notranslate">Contents of the document:</b>
<b class="notranslate">Metadata of the document:</b>
dcterms:modified: 2014-01-06T12:10:27Z
meta:creation-date: 1904-01-01T00:00:00Z
meta:save-date: 2014-01-06T12:10:27Z
Last-Modified: 2014-01-06T12:10:27Z
dcterms:created: 1904-01-01T00:00:00Z
date: 2014-01-06T12:10:27Z
tiff:ImageLength: 360
modified: 2014-01-06T12:10:27Z
Creation-Date: 1904-01-01T00:00:00Z
tiff:ImageWidth: 640
Content-Type: video/mp4
Last-Save-Date: 2014-01-06T12:10:27Z