Question

我正在创建一个用户可以观看视频的网站。我想为用户提供功能，他可以在这里切割视频的一部分并保存到其驱动器（在本地主机上执行）。我设计了由两个按钮（起点和终点）组成的视频播放器。当用户点击开始和终点按钮时，它应该只剪切该特定部分。

问题 -

当用户点击这些按钮时，如何在变量中存储起点和终点[即时间]？
是否可以使用javascript进行上述操作？

鉴于代码将视频分成相等的部分。我想将视频从1.15分钟剪切到2.30分钟。

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class SplitVideoFile {
public static void main(String[] args) {
    try {
        File file = new File("C:/Documents and Settings/Despicable Me 2 - Trailer (HD) - YouTube.mp4");//File read from Source folder to Split.
        if (file.exists()) {

        String videoFileName = file.getName().substring(0, file.getName().lastIndexOf(".")); // Name of the videoFile without extension
        File splitFile = new File("C:/Documents and Settings/Videos_Split/"+ videoFileName);//Destination folder to save.
        if (!splitFile.exists()) {
            splitFile.mkdirs();
            System.out.println("Directory Created -> "+ splitFile.getAbsolutePath());
        }

        int i = 01;// Files count starts from 1
        InputStream inputStream = new FileInputStream(file);
        String videoFile = splitFile.getAbsolutePath() +"/"+ String.format("%02d", i) +"_"+ file.getName();// Location to save the files which are Split from the original file.
        OutputStream outputStream = new FileOutputStream(videoFile);
        System.out.println("File Created Location: "+ videoFile);
        int totalPartsToSplit = 20;// Total files to split.
        int splitSize = inputStream.available() / totalPartsToSplit;
        int streamSize = 0;
        int read = 0;
        while ((read = inputStream.read()) != -1) {

            if (splitSize == streamSize) {
                if (i != totalPartsToSplit) {
                    i++;
                    String fileCount = String.format("%02d", i); // output will be 1 is 01, 2 is 02
                    videoFile = splitFile.getAbsolutePath() +"/"+ fileCount +"_"+ file.getName();
                    outputStream = new FileOutputStream(videoFile);
                    System.out.println("File Created Location: "+ videoFile);
                    streamSize = 0;
                }
            }
            outputStream.write(read);
            streamSize++;
        }

        inputStream.close();
        outputStream.close();
        System.out.println("Total files Split ->"+ totalPartsToSplit);
    } else {
        System.err.println(file.getAbsolutePath() +" File Not Found.");
    }
} catch (Exception e) {
    e.printStackTrace();
}
}
}

在特定点使用JAVA / JSP或Javascript切割视频

0 个答案: