Java解码H264格式视频流中的图片

本文实例为大家分享了Java解码H264格式视频流中的图片，供大家参考，具体内容如下

引入依赖

<dependency>
 <groupId>org.bytedeco</groupId>
 <artifactId>javacv</artifactId>
 <version>1.4.3</version>
</dependency>

<dependency>
 <groupId>org.bytedeco.javacpp-presets</groupId>
 <artifactId>ffmpeg-platform</artifactId>
 <version>4.0.2-1.4.3</version>
</dependency>

需要注意这两个包之间的版本有一个对应关系，如果版本不对应可能会出问题 

解码过程

实现的一个简单功能是：

• 从Socket获取视频输入流（H264格式）

• 获取视频流中的帧

• 把每一帧转换成 BufferedImage
  

package com.amwalle.walle.raspi.camera;

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;

public class CameraHandler implements Runnable {
private static final Logger logger = LoggerFactory.getLogger(CameraHandler.class);

private final String LOCK = "LOCK";

private Socket cameraSocket;
private static BufferedImage bufferedImage;

CameraHandler(Socket socket) throws IOException {
this.cameraSocket = socket;
}

String getLock() {
return LOCK;
}

@Override
public void run() {
try {
 InputStream cameraStream = cameraSocket.getInputStream();

FFmpegFrameGrabber frameGrabber = new FFmpegFrameGrabber(cameraStream);

frameGrabber.setFrameRate(30);
 frameGrabber.setFormat("h264");
 frameGrabber.setVideoBitrate(15);
 frameGrabber.setVideoOption("preset", "ultrafast");
 frameGrabber.setNumBuffers(25000000);

frameGrabber.start();

Frame frame = frameGrabber.grab();

Java2DFrameConverter converter = new Java2DFrameConverter();

while (frame != null) {
 BufferedImage bufferedImage = converter.convert(frame);

setBufferedImage(bufferedImage);

synchronized (LOCK) {
  LOCK.notifyAll();
 }

frame = frameGrabber.grab();
 }
} catch (IOException e) {
 logger.info("Video handle error, exit ...");
 logger.info(e.getMessage());
}
}

private void setBufferedImage(BufferedImage image) {
bufferedImage = image;
}

BufferedImage getBufferedImage() {
return bufferedImage;
}
}

来源：https://blog.csdn.net/weixin_42534940/article/details/87711310