V4L2 - counting dropped frames - NVIDIA Developer Forums
2023年7月17日 · Hello, I am trying to implement a frame_counter to make sure that I know about dropped frames. I am using v4l2 userptr to receive frames and I would like to implement the …
How does v4l2_buffer->timestamp to system OS timestamp
2020年8月20日 · We want to get v4l2_buffer timestamp with system os. We use this follow method to update our code. But we found there are not match. How can we get v4l2 buffer …
Trouble having v4l2 auto select correct mode - NVIDIA Developer …
2024年11月19日 · Hi, I have developed a driver for a camera that supports 3 modes, GREY, Y14, and Y16. The camera outputs in 1680x1050 @ 90,45, or 30. The issue is when I have …
How to set exposure and gain parameters for IMX219 with v4l2-ctl?
2020年8月27日 · here is : v4l2-ctl -l. Camera Controls. group_hold 0x009a2003 (bool) : default=0 value=0 flags=execute-on-write sensor_mode 0x009a2008 (int64) : min=0 max=5 step=1 …
V4l2 -capture 4k raw data - NVIDIA Developer Forums
2023年10月10日 · Hello, my goal is to A. use logitech 4k usb camera. B. capture 4k frames (to get 4k uncomressed representation in memory) C. save raw data to disk ( 4k, bmp, …
ISP access from v4l2 with CSI camera - NVIDIA Developer Forums
2021年9月10日 · I’ve read reports that say that capturing video from a CSI-connected camera will only provide bayer data, and that only using libargus enables the ISP. I’d prefer to use v4l2, …
V4L2_BUF_FLAG_TSTAMP_SRC_SOE - NVIDIA Developer Forums
2019年1月17日 · V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x00000000 Unknown timestamp type. This type is used by drivers before Linux 3.9 and may be either monotonic (see below) or …
无法生成v4l2子节点 - Jetson Orin NX - NVIDIA Developer Forums
2024年8月14日 · 我在probe函数里面加了一些打印，发现能够正确识别设备树的devnode值是video0，但是我再进一步打印num_channels和port@0，却发现我设置的num_channels是8， …
V4L2 MJPG low framerate - NVIDIA Developer Forums
2024年7月16日 · Environment • Hardware Platform (Jetson / GPU) Jetson Orin NX • DeepStream Version DeepStream 6.1 • JetPack Version (valid for Jetson only) Host: 5.1.1-b56 Docker: …
Slides for V4L2 Sensor Driver Development Tutorial
2022年8月8日 · Continuing the discussion from Meaning of VI and NVCSI in DT of TX2:. the V4L2 Sensor Driver Development Tutorial is useful for beginners, there are many links in the slides …