???????????????Java??????FFmpeg?????????rm???????????????avi?????????????????????????????????????????????????????????

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.FFmpegFrameRecorder;

public class VideoConverter {

    public static void convertRMtoAVI(String inputFilePath, String outputFilePath) {
        try {
            FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(inputFilePath);
            grabber.start();

            FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(outputFilePath, grabber.getImageWidth(), grabber.getImageHeight());
            recorder.setFormat("avi");
            recorder.setVideoCodec(grabber.getVideoCodec());
            recorder.setFrameRate(grabber.getFrameRate());
            recorder.start();

            while (true) {
                recorder.record(grabber.grab());
            }

            grabber.stop();
            recorder.stop();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        String inputFilePath = "input.rm";
        String outputFilePath = "output.avi";
        convertRMtoAVI(inputFilePath, outputFilePath);
    }
}

???????????????FFmpeg???????????????????????????Maven???Gradle?????????????????????????????????????????????????????????rm?????????????????????avi????????????????????????????????????????????????????????????????????????????????????????????????????????????