【FAQ】解决报错Could not initialize class

时间:2025-03-18 11:18:53

在利用FFmpegFrameGrabber处理视频流,将视频一帧一帧取出来的过程中

遇到一个报错:Could not initialize class

网上查找资料发现是少引入了包

但是增加之后又会有其他的报错,如:Exception in thread "main" : org/bytedeco/javacpp/PointerScope

查来查去,发现是由于依赖包之间不匹配导致,修改成一致之后解决:

我是引入了下面两个就没问题了:

        <dependency>
            <groupId></groupId>
            <artifactId>javacv</artifactId>
            <version>1.4.3</version>
        </dependency>

        <dependency>
            <groupId>-presets</groupId>
            <artifactId>ffmpeg-platform</artifactId>
            <version>4.0.2-1.4.3</version>
        </dependency>

可以从这里查看对应版本:

/download/

 

附视频流截取帧的核心代码:

            FFmpegFrameGrabber frameGrabber = new FFmpegFrameGrabber(new File(("") + "/test.h264"));

            (100);
            ("h264");
            (15);
            ("preset", "ultrafast");
            (25000000);

            Java2DFrameConverter converter = new Java2DFrameConverter();

            ();

            Frame frame = ();
            BufferedImage bufferedImage = (frame);
            File file = new File(("") + "/temp/image_" + count + ".jpg");
            (bufferedImage, "jpg", file);
            ();
            ();