How to use usb webcam in H3??

Jump to: navigation, search

How to use usb webcam in H3??

Because I use python opencv

>> cap = cv2.VideoCapture(0)

It doesn't capture webcam

How to solve this problem??

11:52, 17 October 2017

Hi

I write information when I checked the usb webcam using Yocto v2.23.0.
I don't understand your detailed environment, but I am glad if this is helpful for you.

Environment:
- H3 Starter Kit
- Yocto v2.23.0
- USB Webcam Logicool C920t

1. Enable the following kernel config.
        Device Drivers --> Multimedia support  ---> [*] Media USB Adapters
                [*] USB Video Class (UVC)
                [*] UVC input events device support (NEW)

2. Modify the gstreamer1.0-plugin-vspfilter
 # vi gst/vspfilter/vspfilterutils.c
   {GST_VIDEO_FORMAT_UYVY, V4L2_PIX_FMT_UYVY, V4L2_MBUS_FMT_AYUV8_1X32, 1},
+  {GST_VIDEO_FORMAT_YUY2, V4L2_PIX_FMT_YUYV, V4L2_MBUS_FMT_AYUV8_1X32, 1},

3. bitbake

4. How to run
 Ex)
 # gst-launch-1.0 v4l2src device=/dev/video16 ! video/x-raw,width=1920,height=1080 ! vspfilter ! video/x-raw,format=BGRA ! waylandsink

 * videoN: Please set according to your environment.
   Ex) In case of M3 SK it was video8.
04:38, 23 October 2017

You do not have permission to edit this page, for the following reasons:

  • The action you have requested is limited to users in the group: Users.
  • You must confirm your email address before editing pages. Please set and validate your email address through your user preferences.

You can view and copy the source of this page.

Return to Thread:Talk:R-Car/Boards/Yocto-Gen3/How to use usb webcam in H3??/reply (2).

22:54, 23 October 2017

for enter in the configuration of the kernel ( you must have a X server configured because you have a popup with the menuconfig) : bitbake linux-renesas -c do_menuconfig

Cdorbell (talk)04:33, 11 January 2018