如何用Java实现CMS系统的视频编码功能

import com.xuggle.xuggler.*;
import java.awt.image.BufferedImage;

public class VideoEncoder {
    public static void main(String[] args) {
        // 创建编码器
        IContainer container = IContainer.make();
        IMediaWriter writer = null;
        try {
            // 设置输出文件名
            writer = ToolFactory.makeWriter("output.mp4");

            // 添加视频流
            writer.addVideoStream(0, 0, ICodec.ID.CODEC_ID_H264, 640, 480);

            // 创建视频编码器
            ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_H264);
            IPacket packet = IPacket.make();
            IVideoPicture picture = IVideoPicture.make(codec.getPixelType(), 640, 480);

            // 读取每一帧图像，进行编码
            BufferedImage image = null;
            while ((image = getNextFrame()) != null) {
                picture.setImage(image);
                // 编码图像
                writer.encodeVideo(0, picture);
            }

            // 清空缓冲区
            writer.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭编码器
            if (writer != null) {
                writer.close();
            }
            container.close();
        }
    }

    private static BufferedImage getNextFrame() {
        // 获取下一帧图像
        // TODO: 实现获取图像的逻辑
        return null;
    }
}