Javacv push problem

 new Thread(){
                    public void run() {
                        FrameGrabber grabber = null;
                        try {
                            grabber = FFmpegFrameGrabber.createDefault(cameraInfo.getRtspHD());         
                            System.out.println(grabber.getPixelFormat()); //3 
                        } catch (org.bytedeco.javacv.FrameGrabber.Exception e2) {
                            e2.printStackTrace();
                        }  
                        grabber.setOption("rtsp_transport", "tcp");
                        grabber.setImageHeight(576);
                        grabber.setImageWidth(720);
                        String path = getPath(cameraInfo.getId());
                        FrameRecorder recorder = null;
                        try {
                            recorder = FrameRecorder.createDefault(path, 720, 576);
                        } catch (org.bytedeco.javacv.FrameRecorder.Exception e2) {
                            e2.printStackTrace();
                        } 
                        recorder.setVideoOption("tune","zerolatency");
                        recorder.setVideoOption("preset","ultrafast");
                        recorder.setVideoCodec(avcodec.AV_CODEC_ID_H264);
                        recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);
                        recorder.setVideoBitrate(400000);
                        recorder.setFormat("flv");  
                        recorder.setFrameRate(25);  
                        recorder.setGopSize(25); 
                        try {  
                            grabber.start();  
                        } catch (Exception e) {  
                            try {  
                                grabber.restart(); 
                            } catch (Exception e1) {  
                                e1.printStackTrace();
                            }  
                        }  
                        try {  
                            recorder.start();  
                        } catch (org.bytedeco.javacv.FrameRecorder.Exception e) {  
                            try {  
                                if(recorder!=null)  
                                {  
                                    recorder.stop();  
                                    recorder.start();  
                                }   
                            } catch (org.bytedeco.javacv.FrameRecorder.Exception e1) {  
                                e1.printStackTrace();
                            }  
                        }  
                        Frame grabframe = null;
                        long startTime=0;
                        try {
                            while ((grabframe=grabber.grab()) != null) {  
                                if (startTime == 0) {  
                                    startTime = System.currentTimeMillis();  
                                }  
                                long segment = System.currentTimeMillis() - startTime;
                                recorder.setTimestamp(1000 * (segment));
                                if(grabframe!=null){  
                                    recorder.record(grabframe);  
                                }  
                            }
                        } catch (org.bytedeco.javacv.FrameGrabber.Exception
                                | org.bytedeco.javacv.FrameRecorder.Exception e) {
                            e.printStackTrace();
                        }     
                        try {
                            recorder.stop();
                        } catch (org.bytedeco.javacv.FrameRecorder.Exception e) {
                            e.printStackTrace();
                        }  
                        try {
                            recorder.release();
                        } catch (org.bytedeco.javacv.FrameRecorder.Exception e) {
                            e.printStackTrace();
                        }  
                        try {
                            grabber.stop();
                        } catch (org.bytedeco.javacv.FrameGrabber.Exception e) {
                            e.printStackTrace();
                        }   
                    }    
                }.start();                

The console prints the following information all the time,What's the solution?

[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 00000000287a4480] deprecated pixel format used, make sure you did set range correctly