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;
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。