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Jan 13, 2020 · After closing the file descriptor, calling VIDIOC_STREAMOFF or calling ioctl VIDIOC_REQBUFS the check for this will be reset. For memory-to- ...
Nov 27, 2018 · I have been trying to read videos from a file in Java using OpenCV. I am running OpenCV 4.0.0 on Ubuntu. Currently I have been trying to do so as follows:
Jun 7, 2020 · Everytime when I tried set format or request buffer through ioctl , I will get error message: VIDIOC_REQBUFS error 16, Device or resource busy\n.
Dec 19, 2011 · I am using opencv 2.1 on ubuntu 11.10. When i tried to run a sample program to manipulate video from two usb web cameras an error shown as below.
Apr 8, 2014 · ... VIDIOC_REQBUFS: Device or resource busy VIDIOC_QBUF: Bad file descriptor The first two errors are not important, they appeared at any ...
Jun 10, 2020 · I'm trying to capture video's raw data. On my desktop, video0 is webcam. If I type: vlc v4l2:///dev/video0 my webcam will open, and my face will show up in vlc ...
Aug 30, 2021 · ... VIDIOC_REQBUFS: errno=16 (Device or resource busy). – Todd Murphy. Commented Aug 30, 2021 at 17:31. Try adding global vid to showVideo and ...
Mar 28, 2017 · VIDIOC_REQBUFS Error 12 when opening multiple v4l2 sources · 3 ... VIDIOC_QBUF: Device or resource busy V4L2 MEMORY USERPTR · 5 · video ...
Nov 30, 2013 · VIDIOC_REQBUFS: Device or resource busy [1] ioctl (VIDIOCGCAP): Inappropriate ioctl for device [1] Could not fetch initial image from camera ...
Jun 27, 2018 · How to solve opencv error " VIDIOC_S_FMT error 16, Device or resource busy " ... OpenCV VideoCapture error: VIDIOC_REQBUFS: Inappropriate ioctl ...