opencv-mobile使用usb摄像头的问题

• sml008

  Posts: 12

  Joined: 2024-09-05 11:58

  2024-09-11 6:41

  您好，请问一下 ，在luckfox pico UltraW上面使用opencv-mobile例程，如果使用USB摄像头，如何才能打开？
  
  [root@luckfox root]$ v4l2-ctl --list-devices
  rkisp-statistics (platform: rkisp):
  /dev/video19
  /dev/video20
  
  rkcif-mipi-lvds (platform:rkcif):
  /dev/media0
  
  rkisp_mainpath (platform:rkisp-vir0):
  /dev/video11
  /dev/video12
  /dev/video13
  /dev/video14
  /dev/video15
  /dev/video16
  /dev/video17
  /dev/video18
  /dev/media1
  
  webcamproduct: Usb Webcam (usb-xhci-hcd.0.auto-1.3):
  /dev/video21
  /dev/video22
  /dev/media2
  
  
  不论是使用 cap.open(0);还是cap.open(1); cap.open(2); 都无法打开USB摄像头。
  
  
  [root@luckfox]$ ./opencv-mobile-test
  this device is not whitelisted for jpeg decoder cvi
  this device is not whitelisted for jpeg decoder cvi
  this device is not whitelisted for jpeg decoder cvi
  devpath = /dev/video13
  driver = rkisp_v7
  card = rkisp_mainpath
  bus_info = platform:rkisp-vir0
  version = 20000
  capabilities = 84201000
  device_caps = 4201000
  fmt = UYVY 4:2:2 59565955
  fmt = Y/CbCr 4:2:2 3631564e
  fmt = Y/CrCb 4:2:2 3136564e
  fmt = Y/CrCb 4:2:0 3132564e
  size = 32 x 16 ~ 800 x 600 (+8 +8)
  /dev/video13 ioctl VIDIOC_ENUM_FRAMEINTERVALS failed 19 No such device
  320 x 240
  Illegal instruction (core dumped)

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