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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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    • 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?

        W 1 Reply Last reply Reply Quote 0
        • 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
                
                W 1 Reply Last reply Reply Quote 0
                • 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

                  1 Reply Last reply Reply Quote 0
                  • 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?

                    W 1 Reply Last reply Reply Quote 0
                    • 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
                        
                        W 1 Reply Last reply Reply Quote 0
                        • 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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