;dev->button=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_button,NULL);dev->int32=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_int32,NULL);dev->int64=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_int64,NULL);dev->boolean=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_boolean,NULL);dev->menu=v4l2_ctrl_new_custom(hdl,...
structv4l2_ctrl_ops{int(*g_volatile_ctrl)(structv4l2_ctrl *ctrl);int(*try_ctrl)(structv4l2_ctrl *ctrl);int(*s_ctrl)(structv4l2_ctrl *ctrl); }; 通常是需要实现s_ctrl: staticintfoo_s_ctrl(structv4l2_ctrl *ctrl){structfoo*state=container_of(ctrl->handler,structfoo, ctrl_handler);switch...
dev->brightness = v4l2_ctrl_new_std(hdl, &vivi_ctrl_ops,V4L2_CID_BRIGHTNESS, 0, 255, 1, 127); dev->button = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_button, NULL); dev->int32 = v4l2_ctrl_new_custom(hdl, &vivi_ctrl_int32, NULL); dev->int64 = v4l2_ctrl_new_custom(hdl, &vivi...
pixel_rate 0x009f0902 (int64) : min=0 max=120000000 step=1 default=120000000 value=120000000 flags=read-only test_pattern 0x009f0903 (menu) : min=0 max=4 default=0 value=0 5)增加曝光exposure exposure值区间为: 4-3324 命令实例: v4l2-ctl -d /dev/video0 --set-ctrl exposure=3324 6)...
v4l-utils工具是由Linux维护的V4L2开发工具包。 它提供了一套用于配置V4L2子设备属性的V4L2和媒体框架相关工具,测试V4L2设备,并提供开发库,如libv4l2等等。 v4l-utils工具包主要包含两个常用工具,分别是media-ctl、v4l2-ctl。 2. media-ctl media-ctl是v4l2-utils包中的一个工具,主要用来查看、配置Media Framework的...
struct v4l2_ctrl *contrast; struct v4l2_ctrl *saturation; struct v4l2_ctrl *hue; struct v4l2_ctrl *volume; struct v4l2_ctrl *button; struct v4l2_ctrl *boolean; struct v4l2_ctrl *int32; struct v4l2_ctrl *int64; struct v4l2_ctrl *menu; ...
EXPORT_SYMBOL (v4l2_g_ctrl) int v4l2_subdev_g_ctrl (struct v4l2_subdev *sd, struct v4l2_control *control) EXPORT_SYMBOL (v4l2_subdev_g_ctrl) s32 v4l2_ctrl_g_ctrl (struct v4l2_ctrl *ctrl) EXPORT_SYMBOL (v4l2_ctrl_g_ctrl) s64 v4l2_ctrl_g_ctrl_int64 (struct v4l2_ctrl *ctrl) EXPORT...
(const struct v4l2_ctrl *ctrl, } } -static void std_init(const struct v4l2_ctrl *ctrl, +static void std_init(const struct v4l2_ctrl *ctrl, u32 idx, union v4l2_ctrl_ptr ptr) { switch (ctrl->type) { @@ -1207,6 +1207,14 @@ static void std_log(const struct v4l2_ctrl *ctrl)...
==>device->GetFormatFrameDurationRange(v4l2_format, frame_size, &duration_range); ==>V4L2Wrapper::GetFormatFrameDurationRange(uint32_t v4l2_format,const std::array<int32_t, 2>& size,std::array<int64_t, 2>* duration_range) 源码如下:...