【JavaCV】

1.引入依赖

        <dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>javacv-platform</artifactId>
            <version>1.5.7</version>
        </dependency>

        <dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>javacv</artifactId>
            <version>1.5.7</version>
        </dependency>

2.获取视频 (无声音)

package com.jsxs.controller;

/**
 * @Author Jsxs
 * @Date 2023/10/29 12:45
 * @PackageName:com.jsxs.controller
 * @ClassName: demo1
 * @Description: TODO
 * @Version 1.0
 */

import javax.swing.JFrame;

import org.bytedeco.ffmpeg.global.avcodec;
import org.bytedeco.javacv.CanvasFrame;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.OpenCVFrameGrabber;


import java.io.*;

public class Video_Start {

    public static void main(String[] args) throws IOException, InterruptedException {

        // 1.初始化一个摄像头，并且指定摄像头的ID
        OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);
        // 2.开始获取摄像头驱动的操作
        grabber.start();
        // 3.设置一个摄像头的GUI
        System.out.println("开始新建摄像头窗口");
        String canasName = "摄像头窗口";
        // 4.创建我们的框架
        CanvasFrame canvas = new CanvasFrame(canasName);
        // 5.当我们点击窗口的关闭键的时候，视频驱动也关闭
        System.out.println("窗口设置");
        canvas.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        canvas.setVisible(true);

        // 6.生成MP4文件
        FFmpegFrameRecorder recorder = new FFmpegFrameRecorder("E://output.mp4", grabber.getImageWidth(), grabber.getImageHeight(),1);
        recorder.setFormat("mp4");
        recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
        // 7.设置视频为30帧每秒 和 比特率为2Mbs
        recorder.setFrameRate(65);
        recorder.setVideoBitrate(2000000);
        // 8.开始录制视频
        recorder.start();

        while (canvas.isDisplayable()) {
            // 9.开始展示视频
            canvas.showImage(grabber.grab());
            // 10.开始存放视频
            recorder.record(grabber.grab());
        }

        //调用关闭按钮
        System.out.println("调用了关闭摄像头按钮");
        grabber.stop();
        recorder.stop();
    }
}

3.获取音频 (无视频)

package com.jsxs.controller;


import java.io.File;
import java.util.concurrent.TimeUnit;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.TargetDataLine;

public class AudioRecode {

    public static void recode() throws Exception {
        String path = "E://first.wav";
        //AudioFormat(encoding, sampleRate, sampleSizeInBits, channels, frameSize, frameRate, bigEndian)
        AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100, 16, 2, 4, 44100, true);
        DataLine.Info info = new DataLine.Info(TargetDataLine.class,format); //,AudioSystem.NOT_SPECIFIED
        TargetDataLine tDataLine = (TargetDataLine)AudioSystem.getLine(info);
        tDataLine.open(format);
        tDataLine.start();

        Thread audioThd = new Thread(new Runnable() {
            @Override
            public void run() {
                AudioInputStream in = new AudioInputStream(tDataLine);
                try {
                    System.out.println("开始录音");
                    File saveFile = new File(path);
                    AudioSystem.write(in, AudioFileFormat.Type.WAVE, saveFile);

                } catch (Exception e) {
                    e.printStackTrace();
                    return;
                }
            }
        });
        audioThd.start();

        TimeUnit.SECONDS.timedJoin(audioThd, 10);//录音时长
        if (audioThd.isAlive()){
            audioThd.interrupt();
        }
        System.out.println("录音结束");
    }
    public static void main(String[] args) throws Exception {
        recode();
    }

}

4.获取视频 + 音频 (分开获取)

package com.jsxs.controller;

import org.bytedeco.ffmpeg.global.avcodec;
import org.bytedeco.javacv.CanvasFrame;
import org.bytedeco.javacv.FFmpegFrameRecorder;
import org.bytedeco.javacv.OpenCVFrameGrabber;

import javax.sound.sampled.*;
import javax.swing.*;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * @Author Jsxs
 * @Date 2023/10/31 16:43
 * @PackageName:com.jsxs.controller
 * @ClassName: video_audio
 * @Description: TODO
 * @Version 1.0
 */
public class video_audio {
    public static void main(String[] args) throws IOException, InterruptedException {

        // 1.初始化一个摄像头，并且指定摄像头的ID
        OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);
        // 2.开始获取摄像头驱动的操作
        grabber.start();
        // 3.设置一个摄像头的GUI
        System.out.println("开始新建摄像头窗口");
        String canasName = "摄像头窗口";
        // 4.创建我们的框架
        CanvasFrame canvas = new CanvasFrame(canasName);
        // 5.当我们点击窗口的关闭键的时候，视频驱动也关闭
        System.out.println("窗口设置");
        canvas.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        canvas.setVisible(true);

        // 6.生成MP4文件
        FFmpegFrameRecorder recorder = new FFmpegFrameRecorder("E://output.mp4", grabber.getImageWidth(), grabber.getImageHeight(), 1);
        recorder.setFormat("mp4");
        recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
        // 7.设置视频为30帧每秒 和 比特率为2Mbs
        recorder.setFrameRate(25);
        recorder.setVideoBitrate(2000000);
        // 录音
        Thread audio = new Thread(() -> {
            try {
                recode();
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
        audio.start();

        // 8.开始录制视频
        recorder.start();


        while (canvas.isDisplayable()) {
            // 9.开始展示视频
            canvas.showImage(grabber.grab());
            // 10.开始存放视频
            recorder.record(grabber.grab());
        }
        System.out.println("关闭录音中...");
        audio.stop();
        System.out.println("录音关闭完成00");

        //调用关闭按钮
        System.out.println("关闭相机中...");
        grabber.stop();
        recorder.stop();
        System.out.println("相机关闭成功");
    }

    public static void recode() throws Exception {
        String path = "E://first.wav";
        //AudioFormat(encoding, sampleRate, sampleSizeInBits, channels, frameSize, frameRate, bigEndian)
        AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100, 16, 2, 4, 44100, true);
        DataLine.Info info = new DataLine.Info(TargetDataLine.class, format); //,AudioSystem.NOT_SPECIFIED
        TargetDataLine tDataLine = (TargetDataLine) AudioSystem.getLine(info);
        tDataLine.open(format);
        tDataLine.start();

        AudioInputStream in = new AudioInputStream(tDataLine);
        try {
            System.out.println("开始录音");
            File saveFile = new File(path);
            AudioSystem.write(in, AudioFileFormat.Type.WAVE, saveFile);

        } catch (Exception e) {
            e.printStackTrace();
            return;
        }

    }
}