.enum_frame_size=ov13850_enum_frame_sizes,--被subdev_do_ioctl的VIDIOC_SUBDEV_ENUM_FRAME_SIZE调用。.enum_frame_interval=ov13850_enum_frame_interval,--被subdev_do_ioctl的VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL调用。.get_fmt=ov13850_get_fmt,--被subdev_do_ioctl的VIDIOC_SUBDEV_G_FMT调用。.set_fmt=o...
在V4L2中,子设备(例如摄像头、音频编解码器等)是以v4l2_subdev结构体的形式存在的。这个结构体包含了一系列的操作(ops),这些操作定义了主设备如何控制子设备。在你的问题中,g_frame_interval就是这些操作之一。 v4l2_subdev结构体的定义可以在Linux内核的源代码中找到,通常在include/media/v4l2-subdev.h文件中。 ...
(struct v4l2_subdev *sd, struct v4l2_fract *aspect); int (*g_frame_interval)(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *interval); int (*s_frame_interval)(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *interval); int (*s_dv_timings)(struct v4l2_subdev *...
int__must_check v4l2_device_register_subdev(structv4l2_device *v4l2_dev,structv4l2_subdev *sd);--将v4l2_subdev和v4l2_dev关联,创建Media Entity。voidv4l2_device_unregister_subdev(structv4l2_subdev *sd);--将v4l2_subdev和其所属的v4l2_dev解除关联,并且注销相关Media Entity、释放相关资源等。int__must...
VIDIOC_S_FBUF 设置framebuffer参数 VIDIOC_STREAMON 开始流I/O操作,capture or output device VIDIOC_STREAMOFF 关闭流I/O操作 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. •TV视频标准: TV StandardID 描述VIDIOC_ENUMSTD 枚举设备支持的所有标准 VIDIOC_G_STD 获取当前正在使用的标准 VIDIOC...
stream) { printf("Streams API not supported.\n"); return; } printf("ioctl: VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL (pad=%u,stream=%u)\n", frmival.pad, frmival.stream); frmival.index = 0; 0 comments on commit 6423a8f Please sign in to comment. ...
dev/v4l-subdev device. It could also support VIDIOC_ENUM_FRAMEINTERVALS, and when VIDIOC_S_PARM is called, just calculate and set the correct vertical blanking interval. Then Firefox and literally everything else would be able to use the cameras, because they would work just like any webcam....
include / media / v4l2-subdev.h v6 v5 v4 v4.20 v4.19 v4.18 v4.18.20 v4.18.19 v4.18.18 v4.18.17 v4.18.16 v4.18.15 v4.18.14 v4.18.13 v4.18.12 v4.18.11 v4.18.10 v4.18.9 v4.18.8 v4.18.7 v4.18.6 v4.18.5 v4.18.4 v4.18.3 v4.18.2 v4.18...
mirror of: http://git.ideasonboard.org/media-ctl.git - media-ctl/src/linux/v4l2-subdev.h at master · RobertCNelson/media-ctl
目前RK平台全部使用V4L2框架来操作摄像头设备。...V4L2框架的组成大致如下图所示图片V4L2里面有v4l2-subdev和v4l2_device,以及videobuf2-core三类设备。...remote-endpoint = ;// csi2 dphy lane数,1lane为 , 4lane为 // rk3568支持1*4lane和2*2lane两种模式data-lanes...address-cells = ;#size-cells =...