V4L2_CTRL_TYPE_INTEGER = 1, /* 整形 */ V4L2_CTRL_TYPE_BOOLEAN = 2, /* 真值 */ V4L2_CTRL_TYPE_MENU = 3, /* 菜单 */ V4L2_CTRL_TYPE_BUTTON = 4, /* 无值 */ V4L2_CTRL_TYPE_INTEGER64 = 5, /* 后面三种不常用 */ V4L2_CTRL_TYPE_CTRL_
13 enum v4l2_ctrl_type { 14 V4L2_CTRL_TYPE_INTEGER = 1, /* 整形 */ 15 V4L2_CTRL_TYPE_BOOLEAN = 2, /* 真值 */ 16 V4L2_CTRL_TYPE_MENU = 3, /* 菜单 */ 17 V4L2_CTRL_TYPE_BUTTON = 4, /* 无值 */ 18 V4L2_CTRL_TYPE_INTEGER64 = 5, /* 后面三种不常用 */ 19 V4L2_CTRL_T...
printf(" Type: %s\n", (qc.type == V4L2_CTRL_TYPE_INTEGER) ? "Integer" : (qc.type == V4L2_CTRL_TYPE_BOOLEAN) ? "Boolean" : (qc.type == V4L2_CTRL_TYPE_MENU) ? "Menu" : (qc.type == V4L2_CTRL_TYPE_BUTTON) ? "Button" : "Unknown"); ++; } } int main() { int fd = ...
这可以是V4L2_CTRL_TYPE_INTEGER、 V4L2_CTRL_TYPE_BOOLEAN、V4L2_CTRL_TYPE_MENU (针对一组固定的择项) 或V4L2_CTRL_TYPE_BUTTON (针对一些设定时会忽略任何给出的值的控制操作).name字段用来描述控制操作;它可以在展现给用户的应用接口中使用。 对于整型的控制来说(仅针对这种控制),minimum和maximum 描述的是控...
v4l2-ctl--help General/Common options:--all display all information available-C, --get-ctrl <ctrl>[,<ctrl>...]get the value of the controls [VIDIOC_G_EXT_CTRLS]-c, --set-ctrl <ctrl>=<val>[,<ctrl>=<val>...]set the value of the controls [VIDIOC_S_EXT_CTRLS]-D, --info ...
–list-ctrls:这个选项用来列出摄像头或视频设备支持的所有控制参数。 输出解释 输出将包括不同类别的控制参数,如“User Controls”和“Image Processing Controls”。 每个控制参数通常包含以下信息: 控制名称:如horizontal_flip或test_pattern。 参数类型:如(bool)表示布尔类型,(menu)表示有固定选项的菜单。
(hdl,&vivi_ctrl_menu,NULL);dev->string=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_string,NULL);dev->bitmask=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_bitmask,NULL);if(hdl->error){ret=hdl->error;goto unreg_dev;}v4l2_ctrl_auto_cluster(2,&dev->autogain,0,true);dev->v4l2_dev.ctrl_handler=hdl...
v4l2-ctrl命令全整理(内含超值附件资料).docx,v4l2-ctl命令整理 PAGE \* Arabic \* MERGEFORMAT12 / NUMPAGES \* Arabic \* MERGEFORMAT12 v4l2-ctl命令整理 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc530404877 一、V4l-utils安装 PAGEREF _Toc530404877 \h 2 HYPERLINK
首先介绍了V4L2的基础知识和摄像头驱动配置，然后介绍了OpenCV的图像解码和显示功能。最后，通过具体的示例...
defineVIDIOC_ENUMINPUT _IOWR('V', 26, struct v4l2_input)#defineVIDIOC_G_CTRL _IOWR('V', 27, struct v4l2_control)#defineVIDIOC_S_CTRL _IOWR('V', 28, struct v4l2_control)#defineVIDIOC_G_TUNER _IOWR('V', 29, struct v4l2_tuner)#defineVIDIOC_S_TUNER _IOW('V', 30, struct v4l2_...