자바는 비디오의 합성과 오디오 더빙을 실현합니다.

오디오 및 비디오 길이가 동일합니다.

1. 의존성

<dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>javacv-platform</artifactId>
            <version>1.5.4</version>
        </dependency>
        <dependency>
            <groupId>org.bytedeco</groupId>
            <artifactId>javacv</artifactId>
            <version>1.5.2</version>
        </dependency>

2. 도구

package com.xx.demo.unit;

import org.bytedeco.javacv.*;
import java.io.File;



public class MergeMovieAndVoiceUtil {
    public static String mergeAudioAndVideo(String videoPath, String audioPath, String outPut) throws Exception {
        File file = new File(videoPath);
        FrameRecorder recorder = null;
        FrameGrabber grabber1 = null;
        FrameGrabber grabber2 = null;
        try {
            //抓取视频帧
            grabber1 = new FFmpegFrameGrabber(videoPath);
            //抓取音频帧
            grabber2 = new FFmpegFrameGrabber(audioPath);
            grabber1.start();
            grabber2.start();
            //创建录制
            recorder = new FFmpegFrameRecorder(outPut,
                    grabber1.getImageWidth(), grabber1.getImageHeight(),
                    grabber2.getAudioChannels());
            recorder.setFormat("mp4");
            recorder.setFrameRate(grabber1.getFrameRate());
            recorder.setSampleRate(grabber2.getSampleRate());
            recorder.start();
            Frame frame1;
            Frame frame2;
            //然后录入音频
            while ((frame2 = grabber2.grabFrame()) != null) {
                recorder.record(frame2);
            }
            //先录入视频
            while ((frame1 = grabber1.grabFrame()) != null) {
                recorder.record(frame1);
            }
            grabber1.stop();
            grabber2.stop();
            recorder.stop();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (recorder != null) {
                    recorder.release();
                }
                if (grabber1 != null) {
                    grabber1.release();
                }
                if (grabber2 != null) {
                    grabber2.release();
                }
            } catch (FrameRecorder.Exception e) {
                e.printStackTrace();
            }
        }
        return outPut;
    }

}

셋, 테스트

 @Test
    void contextl() throws Exception {
        String movie = "C:\\Users\\yjtzf\\Desktop\\1.mp4";
        String audio = "C:\\Users\\yjtzf\\Desktop\\22.mp3";
        String resultPath = "C:\\Users\\yjtzf\\Desktop\\d666.mp4";
        MergeMovieAndVoiceUtil.mergeAudioAndVideo(movie, audio, resultPath);
    }