package com.zhgd.xmgl.util;

/**
 * @program: wisdomSite
 * @description: 视频处理工具
 * @author: Mr.Peng
 * @create: 2021-11-19 10:50
 **/

public class VideoUtils {
 /**

    public static boolean getVideoOnlineSate(String videoUrl){
        boolean flag=false;
        try {
            if(StringUtils.isNotEmpty(videoUrl)) {
                FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(videoUrl);
                // 使用tcp的方式，不然会丢包很严重
                grabber.setOption("rtsp_transport", "tcp");
                grabber.setImageWidth(960);
                grabber.setImageHeight(540);
                log.info("grabber start");
                grabber.start();
                int index = 0;
                while (true) {
                    Frame frame = grabber.grabImage();
                    if (frame != null) {
                        flag = true;
                        grabber.stop();
                        grabber.release();
                        break;
                    }
                    index++;
                    if (index >= 20) {
                        break;
                    }
                }
            }
        }catch (Exception e){
  log.error("error：",e);
  }
        return flag;
    }

    public static void playVideo(String url){
        try {
            //String url = "rtsp://182.101.141.23:554/openUrl/M4Hh77a";
            FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(url);
            // 使用tcp的方式，不然会丢包很严重
            grabber.setOption("rtsp_transport", "tcp");
            grabber.setImageWidth(960);
            grabber.setImageHeight(540);
            log.info("grabber start");
            grabber.start();

            //1.播放视频
            CanvasFrame canvasFrame = new CanvasFrame("摄像机");
            canvasFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            canvasFrame.setAlwaysOnTop(true);
            OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
            while (true){
                Frame frame = grabber.grabImage();
                opencv_core.Mat mat = converter.convertToMat(frame);
                canvasFrame.showImage(frame);
            }
        }catch (Exception e){
  log.error("error：",e);
  }
    }

    public static BufferedImage getVideoBufferedImage(String url){
        BufferedImage bufferedImage=null;
        try {
            //String url = "rtsp://182.101.141.23:554/openUrl/M4Hh77a";
            FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(url);
            // 使用tcp的方式，不然会丢包很严重
            grabber.setOption("rtsp_transport", "tcp");
            grabber.setImageWidth(960);
            grabber.setImageHeight(540);
            log.info("grabber start");
            grabber.start();
            int count=0;
            //2.帧截图
            while (true){
                Frame frame = grabber.grabImage();
                if(count>=50) {
                    if (frame != null) {
                        bufferedImage = FrameToBufferedImage(frame);
                        grabber.stop();
                        grabber.release();
                        log.info("图片已保存");
                        break;

                    }
                }
                count++;
            }
        }catch (Exception e){
  log.error("error：",e);
  }
        return bufferedImage;
    }


    //创建BufferedImage对象
    public static BufferedImage FrameToBufferedImage(Frame frame) {
        Java2DFrameConverter converter = new Java2DFrameConverter();
        BufferedImage bufferedImage = converter.getBufferedImage(frame);
//		bufferedImage=rotateClockwise90(bufferedImage);
        return bufferedImage;
    }

    // 处理图片，将图片旋转90度
    public static BufferedImage rotateClockwise90(BufferedImage bi) {
        int width = bi.getWidth();
        int height = bi.getHeight();
        BufferedImage bufferedImage = new BufferedImage(height, width, bi.getType());
        for (int i = 0; i < width; i++) {
            for (int j = 0; j < height; j++) {
                bufferedImage.setRGB(j, i, bi.getRGB(i, j));
            }
        }
        return bufferedImage;
    }

    public static void main(String[] args) {
        playVideo("rtsp://182.101.141.23:554/openUrl/EPwbuOA");
        log.info("----");
    }
  **/
}