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package com.example.jpg2mp4;
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import cn.hutool.core.date.DateUtil;
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import cn.hutool.core.io.FileUtil;
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import cn.hutool.core.io.resource.ResourceUtil;
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import org.bytedeco.ffmpeg.global.avcodec;
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import org.bytedeco.ffmpeg.global.avutil;
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import org.bytedeco.javacv.FFmpegFrameGrabber;
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import org.bytedeco.javacv.FFmpegFrameRecorder;
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import org.bytedeco.javacv.Frame;
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import org.bytedeco.javacv.FrameGrabber;
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import org.bytedeco.javacv.FrameRecorder;
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import org.bytedeco.javacv.Java2DFrameConverter;
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import javax.imageio.ImageIO;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.util.Date;
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import java.util.List;
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public class Image2Mp4 {
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public static void main(String[] args) throws Exception {
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String absolutePath = FileUtil.getAbsolutePath("");
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// 图片集合目录
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String imgs = FileUtil.getAbsolutePath("data\\album\\");
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String auds = FileUtil.getAbsolutePath("data\\music\\");
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// 图片集合目录
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String target = FileUtil.getAbsolutePath("data\\target\\");
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//合成的MP4
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String mp4 = DateUtil.date().toString("yyyyMMddHHmmss");
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String tempMp4 = target + mp4 + "temp.mp4";
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String outMp4 = target + mp4 + ".mp4";
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// 视频宽度
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int width = 1920;
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// 视频高度
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int height = 1080;
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createTempMp4(imgs, tempMp4, width, height);
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if (FileUtil.loopFiles(auds).size() > 0) {
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mergeMp4(tempMp4, auds, outMp4);
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} else {
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FileUtil.move(new File(tempMp4), new File(mp4), true);
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}
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}
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/**
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* 创建临时文件
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*
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* @param tempMp4
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* @param imgs
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* @param width
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* @param height
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* @throws FrameRecorder.Exception
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*/
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private static void createTempMp4(String imgs, String tempMp4, int width, int height) throws FrameRecorder.Exception {
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//视频宽高最好是按照常见的视频的宽高 16：9 或者 9：16
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FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(tempMp4, width, height);
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//设置视频编码层模式
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recorder.setVideoCodec(avcodec.AV_CODEC_ID_MPEG4);
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// 设置视频图像数据格式 yuv420p 先默认吧，这个应该属于设置视频的处理模式吧
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recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);
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recorder.setFormat("mp4");
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//视频帧,一般不能小于24，否则有卡顿
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int frameRate = 25;
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recorder.setFrameRate(frameRate);
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//这一步没有感觉到有多少影响，暂时不管
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recorder.setGopSize(50);
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//8000kb/s 这个说明视频每秒大小，值越大图片转过来的压缩率就越小质量就会越高
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recorder.setVideoBitrate(8000000);
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// 不可变(固定)音频比特率
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recorder.setAudioOption("crf", "0");
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// 最高质量
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recorder.setAudioQuality(0);
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// 音频比特率
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recorder.setAudioBitrate(192000);
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// 音频采样率11025Hz、22050Hz、24000Hz、44100Hz、48000Hz
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recorder.setSampleRate(44100);
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// 双通道(立体声)
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recorder.setAudioChannels(2);
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try {
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recorder.start();
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Java2DFrameConverter converter = new Java2DFrameConverter();
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List<File> files = FileUtil.loopFiles(imgs);
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for (int i = 0; i < files.size(); i++) {
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BufferedImage read = ImageIO.read(files.get(i));
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//一秒是25帧 所以要记录25次
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for (int j = 0; j < frameRate; j++) {
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System.out.println("正在写入，第" + (i + 1) + "张,第" + (j + 1) + "帧");
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//编码格式 ##后面参数用于解决生成视频颜色不对问题
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recorder.record(converter.getFrame(read));
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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//最后一定要结束并释放资源
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recorder.stop();
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recorder.release();
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}
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}
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/**
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* 合并视频和音频
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*
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* @param videoPath
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* @param audioPath
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* @param outPut
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* @return
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* @throws Exception
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*/
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public static boolean mergeMp4(String videoPath, String audioPath, String outPut) throws Exception {
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boolean isCreated = true;
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File file = new File(videoPath);
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if (!file.exists()) {
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return false;
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}
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FrameRecorder recorder = null;
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FrameGrabber grabber1 = null;
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FrameGrabber grabber2 = null;
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try {
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//抓取视频帧
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grabber1 = new FFmpegFrameGrabber(videoPath);
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//抓取音频帧
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grabber2 = new FFmpegFrameGrabber(FileUtil.loopFiles(audioPath).get(0));
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grabber1.start();
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grabber2.start();
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//创建录制
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recorder = new FFmpegFrameRecorder(outPut, grabber1.getImageWidth(), grabber1.getImageHeight(), grabber2.getAudioChannels());
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recorder.setFormat("mp4");
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recorder.setFrameRate(grabber1.getFrameRate());
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recorder.setSampleRate(grabber2.getSampleRate());
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// 视频质量，0表示无损
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recorder.setVideoQuality(0);
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recorder.start();
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Frame frame1;
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//录入视频
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while ((frame1 = grabber1.grabFrame()) != null) {
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recorder.record(frame1);
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}
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//录入音频
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audioEntry(grabber1, grabber2, recorder);
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grabber1.stop();
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grabber2.stop();
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recorder.stop();
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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if (recorder != null) {
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recorder.release();
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}
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if (grabber1 != null) {
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grabber1.release();
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}
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if (grabber2 != null) {
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grabber2.release();
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}
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} catch (FrameRecorder.Exception e) {
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e.printStackTrace();
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}
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}
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return isCreated;
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}
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private static void audioEntry(FrameGrabber grabber1, FrameGrabber grabber2, FrameRecorder recorder) throws Exception {
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Frame frame = null;
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long grabber1Timestamp = grabber1.getTimestamp();
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while ((frame = grabber2.grabFrame()) != null) {
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//如果视频时长小于音频时长 则截断音频帧
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if (grabber1Timestamp <= grabber2.getTimestamp()) break;
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recorder.record(frame);
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}
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long differ = grabber1Timestamp - grabber2.getTimestamp();
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//如果视频时长大于音频时长 则循环录入
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if (differ > 0) {
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grabber1.setTimestamp(differ);
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audioEntry(grabber1, grabber2, recorder);
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}
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}
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}
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