Java实现视频通话-Toy模板网

这篇具有很好参考价值的文章主要介绍了Java实现视频通话。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

视频通话是现在的主流，但是你知道是如何实现的吗？如果想要实现这些技术，肯定是需要了解TCP协议，因为在数据传输时可能会存在粘包的问题，如果没有了解，那么是做不出来的。这里以socket示例，在netty中也会一通百通。
项目准备，导入读取相机流的jar包

<dependency>
      <groupId>com.github.sarxos</groupId>
      <artifactId>webcam-capture</artifactId>
      <version>0.3.12</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.36</version>
    </dependency>

客户端

import com.github.sarxos.webcam.Webcam;
import java.awt.*;
import java.awt.image.BufferedImage;
public class Client extends javax.swing.JFrame{
    //获取客户端画布
    Graphics g;
    public void setUI() throws Exception {
        this.setTitle("视频");
        this.setSize(new Dimension(600,600));
        this.setVisible(true);
        this.setDefaultCloseOperation(3);
        g = this.getGraphics();
        //打开网络连接模块
        ClientConn clientconn = new ClientConn(9999,"127.0.0.1");
        clientconn.conn();
        setWebcam(clientconn);

    }

    //获取摄像头权限并获得图片
    public void setWebcam(ClientConn clientconn) throws Exception {
        // get default webcam and open it获取网络摄像头设置并打开
        Webcam webcam = Webcam.getDefault();
        webcam.open();
        while(true) {
            // get image获取图片
            BufferedImage image = webcam.getImage();
            drawImage(g,image);
            clientconn.trans(image);
        }
    }

    public void drawImage(Graphics g,BufferedImage image) {
        g.drawImage(image,10,10,null);
    }

    public static void main(String[] args) throws Exception {
        Client c = new Client();
        c.setUI();
    }
}

客户端传输类

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.Socket;

public class ClientConn {
	private DataOutputStream out;
	private int port;
	private String host;

	public ClientConn(int port,String host){
		this.port = port;
		this.host = host;
	}
	public void conn() {
		try {
			//创建客户端对象并连接服务器
			Socket client = new Socket(host,port);
			//初始化输入输出流
			out = new DataOutputStream(client.getOutputStream());
		} catch (IOException e) {
			e.printStackTrace();
			System.out.println("程序出错了");	
		}
		
		
	}
	public void trans(BufferedImage image) throws Exception {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		ImageIO.write(image,"jpeg",baos);
		//这里进行拆包发送，防止对方读取错误
		byte[] array = baos.toByteArray();
		out.writeInt(array.length);//告诉服务器这个给包的大小
		out.write(array);
		out.flush();
	}


}

服务器端（也就相当于客户端，点对点通信）

import javax.swing.*;
import java.awt.*;
import java.io.IOException;

public class Server extends JFrame{
    private Graphics g;
    public void setUI(int port) throws IOException {
        this.setTitle("服务器");
        this.setSize(new Dimension(600,600));
        this.setVisible(true);
        this.setDefaultCloseOperation(3);
        this.g = this.getGraphics();
        //服务器通信板块，端口9999
        ServerConn serverConn = new ServerConn(g);
        serverConn.setServer(port);
        serverConn.trans();
    }
    public static void main(String[] args) throws IOException {
        Server server = new Server();
        server.setUI(9999);
    }

}

视频图片（视频是由图片合成的）文章来源地址https://www.toymoban.com/news/detail-516831.html

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;

public class ServerConn {

	private DataInputStream in;
	java.io.OutputStream out;
	Graphics g;

	public ServerConn(Graphics g) {
		this.g = g;
	}

	//建立服务器函数,port为端口号
	public void setServer(int port) {
		try {
			//创建服务器，建立服务器对象
			java.net.ServerSocket ss = new java.net.ServerSocket(port);
			System.out.println("服务器创建成功" + port);
			//等待客户端对象连接
			java.net.Socket client = ss.accept();
			System.out.println("有个客户机成功连接客户机");
			//初始化输入输出流
			in = new DataInputStream(client.getInputStream());
			out = client.getOutputStream();
			//数据流
		} catch (IOException e) {
			// TODO Auto-generated catch block
			System.out.println("连接失败");
			e.printStackTrace();
		}
	}

	// 读图片
	public void trans() throws IOException {
		while (true){
			int size = in.readInt();//读取对方发送的包大小
			byte[] bytes = new byte[size];
			int read = in.read(bytes);
			ByteArrayInputStream stream = new ByteArrayInputStream(bytes);
			BufferedImage image = ImageIO.read(stream);
			g.drawImage(image,0,0,null);//将读到的图片进行绘制
			System.out.println(read == bytes.length);
		}
	}
}