ffmpeg截图

import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**

• 视频截图截图处理器
• @Author lixiaowen
• @date 2018/6/29
  */
  @Log4j2
  @Deprecated
  public class VideoCaptureHandler {

private String destDir = "D:/";

/**
 * 返回截图所在目录
 *
 * @param video
 * @param start
 * @param frequency
 * @return
 */
//视频截图
public String capture(String video, String start, int frequency) {
    //截图命令
    StringBuilder sb = new StringBuilder("D:\\Program Files\\ffmpeg-4.0-win64-static\\bin\\ffmpeg -ss ");
    String dir = destDir + System.currentTimeMillis() + "";
    sb.append(start);
    sb.append("  -i ");
    sb.append(video);
    sb.append(" -t 180");
    sb.append(" -f image2 -vf fps=fps=1/");
    sb.append(frequency);
    //hashCode会重复
    sb.append(" " + dir);
    sb.append("/out%d.png");
    if (!new File(dir).exists()) {
        new File(dir).mkdirs();
    }
    try {
        log.info("运行截图命令:" + sb.toString());
        Process exec = Runtime.getRuntime().exec(sb.toString());
        exec.waitFor(30, TimeUnit.SECONDS);//等待截图完成
    } catch (IOException | InterruptedException e) {
        log.error("截图失败,命令{}", sb.toString(), e.getMessage());
        //e.printStackTrace();
        return null;
    }
    return dir;
}

}