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<dependency>

    <groupId>org.bytedeco</groupId>

    <artifactId>javacv</artifactId>

    <version>1.4.1</version>

</dependency>

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import org.bytedeco.javacv.*;

import java.io.IOException;

public class FrameExtractor {

    public static void main(String[] args) throws IOException, FrameGrabber.Exception, FrameRecorder.Exception {

        FFmpegFrameGrabber grabber = new FFmpegFrameGrabber("直播流地址xxx.m3u8");

        grabber.setOption("rtsp_transport", "tcp");

        grabber.start();

        Frame frame;

        Java2DFrameConverter converter = new Java2DFrameConverter();

        int i = 0;

        // grabber.grabImage() 获取帧图片，不包含音频

        // grabber.grab() 包含音频

        while ((frame = grabber.grabImage()) != null) {

            // 在这里处理抽取到的帧

            // 例如，将帧保存为图像文件

            converter.convert(frame).createGraphics().dispose();

            String outputFilename = "frame_" + i + ".jpg";

            File f = new File(outputFilename);

            if(!f.exists())f.mkdirs();

            ImageIO.write(converter.convert(frame), "jpg", f);

            i++;

        }

        grabber.stop();

    }

}

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public class FrameExtractor {

    public static void main(String[] args) throws IOException, FrameGrabber.Exception, FrameRecorder.Exception {

        // 读取流

        FFmpegFrameGrabber grabber = new FFmpegFrameGrabber("http:.m3u8");

        grabber.setOption("rtsp_transport", "tcp");

        grabber.start();

        Frame frame;

        Java2DFrameConverter converter = new Java2DFrameConverter();

        // 控制读取帧数

        int frameRate = (int) grabber.getFrameRate();

        int targetFrameRateNum[] = {10,10}; //（每10秒读10帧） 目标帧率数量，每几秒钟读取几帧

        SortedSet<Integer> targetFrameRate = new TreeSet<>(); // 需要抽取的目标帧率

        // 计算需要抽取的目标帧

        int calFrameRate = frameRate * targetFrameRateNum[0];

        int partSize = calFrameRate / targetFrameRateNum[1];

        int remainder = calFrameRate % targetFrameRateNum[1];

        int current = 1;

        for (int i = 0; i < targetFrameRateNum[1]; i++) {

            // 避免出现帧数多一个

            if (current <= calFrameRate){

                targetFrameRate.add(current);

            }

            current += partSize;

            if (i < remainder) {

                current++;

            }

        }

        // 计数器

        int frameCount = 0;

        int i = 0;

        while ((frame = grabber.grabImage()) != null) {

            // 每读取一帧，增加计数器

            frameCount++;

            // 如果计数器达到目标帧率，则进行处理

            if (targetFrameRate.contains(frameCount)) {

                // 处理抽取到的帧

            }

            // 重置计数器

            if (calFrameRate == frameCount){

                frameCount = 0;

            }

        }

        grabber.stop();

    }

}