ubuntu - 如何解决opencv错误 "VIDIOC_S_FMT error 16, Device or resource busy "

Question

我在 ubuntu 11.10 上使用 opencv 2.1。当我尝试运行一个示例程序来操作来自两个 USB 网络摄像头的视频时，出现如下所示的错误

我尝试了语句 $ v4l2stereo -0/dev/video0 -1/dev/video1

遇到这样的错误

hue is not supportedhueauto is not supportedVIDIOC_S_FMT error 16, Device or resource busy

当我像这样更改命令时 $ v4l2stereo -0/dev/video1 -1/dev/video0我收到类似

的错误

hue is not supportedhueauto is not supportedhue is not supportedhueauto is not supported(Left image:2388): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",(Left image:2388): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",(Left image:2388): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",(Left image:2388): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",Failed to acquire images

请帮助我谢谢你

Answer 1

安装 gtk2-engines-pixbuf 应该可以解决视频问题:

$ sudo apt-get install gtk2-engines-pixbuf