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    SOLVED 移植MV-IMX265驱动程序到迅为RK3568抓图卡死

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    • veye_xumm
      veye_xumm @w88121446 last edited by

      @w88121446
      应该没问题的。 不过我们缺乏应用层尤其是opencv的经验。 我理解是python调用opencv能预览,用c++应该就可以。
      opencv的主要问题是效率问题,数据导入到opencv的时候需要用cpu跑一次数据格式转换。

      W 1 Reply Last reply Reply Quote 0
      • W
        w88121446 @veye_xumm last edited by w88121446

        @veye_xumm 我用《v4l2dev_2_opencv_show_grey.py》这个文件,报错camera open failed.
        麻烦指导一下

        veye_xumm 1 Reply Last reply Reply Quote 0
        • veye_xumm
          veye_xumm @w88121446 last edited by

          @w88121446
          是参考我们在rk平台的这个python程序吗? 能否截图看一下具体错误?
          /dev/video0是否存在?

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          • W
            w88121446 @veye_xumm last edited by

            @veye_xumm /dev/video0确认存在的,用的下面这个PY脚本

            import sys
            import argparse
            import subprocess
            import cv2
            
            def read_cam(width, height, fps,i2c):
                
                v4l2_cmd = f'media-ctl -d /dev/media0 --set-v4l2 \'"m00_b_mvcam 2-003b":0[fmt:Y8_1X8/{width}x{height}@1/{fps} field:none]\''
                subprocess.run(v4l2_cmd, shell=True)
                
                cap = cv2.VideoCapture(f"v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw, format=(string)GRAY8, width=(int){width}, height=(int){height} ! appsink")
                if cap.isOpened():
                    cv2.namedWindow("demo", cv2.WINDOW_AUTOSIZE)
                    while True:
                        ret_val, img = cap.read();
                        cv2.imshow('demo',img)
                        cv2.waitKey(1)
                else:
                 print ("camera open failed");
            
                cv2.destroyAllWindows()
            if __name__ == '__main__':
                parser = argparse.ArgumentParser(description='Read camera video stream')
                parser.add_argument('--width', type=int, default=1080, help='width of the video stream')
                parser.add_argument('--height', type=int, default=1080, help='height of the video stream')
                parser.add_argument('--fps', type=int, default=30, help='fps of the video stream')
                parser.add_argument('--i2c', type=int, default=7, help='i2c bus number')
                args = parser.parse_args()
            
                read_cam(args.width, args.height, args.fps, args.i2c)
            

            报错如下
            23ca28c19180d09616cfb3508239726.jpg

            veye_xumm 1 Reply Last reply Reply Quote 0
            • veye_xumm
              veye_xumm @w88121446 last edited by

              @w88121446 调用的时候参数是怎么写的? i2cbus写对了吗?

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              • W
                w88121446 @veye_xumm last edited by

                @veye_xumm
                我是这么写的,我的I2C用的I2C2,产品分辨率2048*1544

                import sys
                import argparse
                import subprocess
                import cv2
                
                def read_cam(width, height, fps,i2c):
                    
                    v4l2_cmd = f'media-ctl -d /dev/media0 --set-v4l2 \'"m00_b_mvcam {i2c}-003b":0[fmt:Y8_1X8/{width}x{height}@1/{fps} field:none]\''
                    subprocess.run(v4l2_cmd, shell=True)
                    
                    cap = cv2.VideoCapture(f"v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw, format=(string)GRAY8, width=(int){width}, height=(int){height} ! appsink")
                    if cap.isOpened():
                        cv2.namedWindow("demo", cv2.WINDOW_AUTOSIZE)
                        while True:
                            ret_val, img = cap.read();
                            cv2.imshow('demo',img)
                            cv2.waitKey(1)
                    else:
                     print ("camera open failed");
                    cv2.destroyAllWindows()
                if __name__ == '__main__':
                    parser = argparse.ArgumentParser(description='Read camera video stream')
                    parser.add_argument('--width', type=int, default=2048, help='width of the video stream')
                    parser.add_argument('--height', type=int, default=1544, help='height of the video stream')
                    parser.add_argument('--fps', type=int, default=30, help='fps of the video stream')
                    parser.add_argument('--i2c', type=int, default=2, help='i2c bus number')
                    args = parser.parse_args()
                    read_cam(args.width, args.height, args.fps, args.i2c)
                
                veye_xumm 1 Reply Last reply Reply Quote 0
                • veye_xumm
                  veye_xumm @w88121446 last edited by

                  @w88121446 不好意思我没有说清楚,我的意思是,你调用这个脚本的时候,使用的命令行是什么?参数是什么?

                  W 1 Reply Last reply Reply Quote 0
                  • W
                    w88121446 @veye_xumm last edited by

                    @veye_xumm这样调用的

                    python3 v4l2dev_2_opencv_show_grey.py

                    veye_xumm 1 Reply Last reply Reply Quote 0
                    • veye_xumm
                      veye_xumm @w88121446 last edited by

                      @w88121446
                      需要给一下必要的参数

                      python3 ./v4l2dev_2_opencv_show_grey.py --width 2048 --height 1544 --fps 45 --i2c 2
                      
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                      • W
                        w88121446 @veye_xumm last edited by w88121446

                        @veye_xumm 我使用您发给我的命令还是不能打开caramer,再次确认了是I2C-2没有错
                        8edbc1da-117c-40ac-b30b-685045e7dc65-image.png

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                        • veye_xumm
                          veye_xumm @w88121446 last edited by

                          @w88121446 said in 移植MV-IMX265驱动程序到迅为RK3568抓图卡死:

                          图像可以采集出来了,想实时预览的话有什么办法吗?

                          此时你说的图像可以采集出来,是怎么判断的?

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                          • W
                            w88121446 @veye_xumm last edited by

                            @veye_xumm 可以使用下面这个命令拍照,图片正常

                            ./yavta -c1 -Fy81-2048x1544.raw --skip 0 -f Y8 -s 2048x1544 /dev/video0
                            
                            veye_xumm 1 Reply Last reply Reply Quote 0
                            • veye_xumm
                              veye_xumm @w88121446 last edited by

                              @w88121446
                              如果是这样,驱动层是没有问题的。
                              怀疑是使用 OpenCV 的 GStreamer 管道时,确保正确安装和配置了 GStreamer:
                              在某些系统上,GStreamer 可能没有正确配置,导致 OpenCV 无法通过 GStreamer 打开视频设备。

                              gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=GRAY8,width=2048,height=1544 ! autovideosink
                              
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                              • W
                                w88121446 @veye_xumm last edited by w88121446

                                @veye_xumm said in 移植MV-IMX265驱动程序到迅为RK3568抓图卡死:

                                gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=GRAY8,width=2048,height=1544 ! autovideosink

                                用您发的这个命令的话,我要把format=GRAY8改成format=NV12才能预览。

                                关于GStreamer 可能没有正确配置,导致 OpenCV 无法通过 GStreamer 打开视频设备。这个事情,我就查一查GStreamer的配置问题是吧!

                                veye_xumm 1 Reply Last reply Reply Quote 0
                                • veye_xumm
                                  veye_xumm @w88121446 last edited by

                                  @w88121446 我们用的firefly的板子,gstreamer是支持gray8数据格式的。

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