v4l2-ctl -d /dev/video0 --list-formats-ext 查一下分辨率的支持,类似如下输出信息: root@robot:~# v4l2-ctl -d /dev/video3 --list-formats-ext ioctl: VIDIOC_ENUM_FMT Type: Video Capture Multiplanar [0]: 'RGBP' (16-bit RGB 5-6-5) Size: Discrete 2048x1280 Interval: Discrete 0.067s...
设置相机分辨率 #将 [cam] 替换为具体相机,如 /dev/video0v4l2-ctl --set-fmt-video=width=320,height=240,pixelformat=YUYV-d[cam] 设置相机帧率 #将 [cam] 替换为具体相机,如 /dev/video0v4l2-ctl --set-parm=30-d[cam]
The v4l2-ctl tool is used to control video4linux devices, either video, vbi, radio or swradio, both input and output.
build v4l2-ctl for Android 为了在Android上使用v4l2-ctl,fork了该项目。目前支持了rk3588(使用ndk 21b),要支持其它平台,改下utils/v4l2-ctl/rk3588.android.arm64v8a.cmake即可 具体改动见commit 编译前需要修改-DCMAKE_ANDROID_NDK指向自己的NDK路径 ...
The original idea was that v4l2-ctl could set EDIDs with checksum errors, and that the option --fix-edid-checksums had to be given to fix the checksums silently. But this was buggy and in fact any EDID with checksum errors was rejected. It is however quite useful to set an EDID with...
the error "v4l2-ctl: command not found" appears! Why v4l-utils is not installed on imx-image-full? ps*** First I put imx-image-multimedia, so after that I put imx-image-full because I thought it would help, but nothing 解決済!解決策の投稿を見る。
the error "v4l2-ctl: command not found" appears! Why v4l-utils is not installed on imx-image-full? ps*** First I put imx-image-multimedia, so after that I put imx-image-full because I thought it would help, but nothing 已解决! 转到解答。 标签: i.MX 8M | i...
在TX2上使用v4l2-ctl --all -d /dev/video0查看相机参数时报错: v4l2-ctl :command not found 手动安装: sudo apt-get install v4l-utils 分类: 嵌入式编程 标签: TX2 好文要顶 关注我 收藏该文 微信分享 youngliu91 粉丝- 33 关注- 0 +加关注 关注一下楼主吧 0 0 « 上一篇: Camera...
如果可能的话,你可以在目标设备上运行一些 v4l-utils 中的工具来测试其功能,例如使用 v4l2-ctl 来查询和设置视频设备的参数。 以下是一个示例命令,展示了如何在目标设备上运行 v4l2-ctl: bash v4l2-ctl --list-devices 如果命令成功执行并返回了视频设备的列表,那么你的交叉编译就是成功的。
在AM5728开发板上测试 weston-simple-dmabuf-v4l 功能,按照 weston/clients/simple-dmabuf-v4l 源代码的提示: " here we assume /dev/video0\n" "- set the pixel format:\n" " $ v4l2-ctl -d /dev/video0 --set-fmt-video=width=640,pixelformat=XR24\n" ...