
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 timestamp with correct system os timestamp? (eptime us)1597886732.814339 (system os time)1597886725.256784 We still use JetPack3.3. Is there any way to get system os …
V4l2-ctl can't capture video data - NVIDIA Developer Forums
2023年4月5日 · Hello there, We are trying to bring up the Cameras in our custom board with AGX Orin 32GB module and JetPack 5.0.2. The following is our current configuration: We are using 1 SG5-IMX490C-GMSL2-Hxxx SONY 5.44MP IMX490 RGGB x4 Camera(no ISP), plugged to Orin CSI port4 through the max9296 GMSL2 LINKA. Board dts file board.dts (456.7 KB) Kernel …
Max9295 + max9296 + imx390 serdes camera v4l2 status is no …
2021年7月8日 · Hi all~ i tested custom board and that using max9295 + max9296 + imx390 serdes with two cameras almost same but different thing is Link A is YUV and LINK B is RGB. first camera is /dev/video0 and modified to YUV and it is works well 2nd camera is /dev/video1 and RG12 as same as reference setting. but not work and v4l2 status printed ‘no power’ and i …
How to use V4l2src inside docker container for raspberry pi v2 …
2021年6月3日 · How can I use v4l2 inside docker? Thank in advanced. ShaneCCC June 3, 2021, 8:51am 3. Add “–device ...
Multiple V4L2 subdevices per driver instance - Jetson AGX Xavier ...
2021年8月21日 · Hi all, I’m actually doing a research to enable multiple video sources (V4L2 subdevices) in one device driver instance but there is not information for this kind of support and I will appreciate any clarification on how the capture subsystem works and possible limitations/issues for this case. I already asked this some time ago (link) but the answer …
Linux 36.2, how to install `gst-v4l2` plugin? - Jetson Orin Nano ...
2024年2月8日 · Hi, I have just flashed Linux 36.2. And it seems that gstreamer still has nvv4l2decoder issue. I have take a look below links, the question is how to install gst-v4l2 plugin? Please help me if you have the info or link…
Frame rate drops when accessing >4 V4L2 camera streams …
2016年8月17日 · I would not expect the driver to have a resource problem with such low datarates. But I dont have that much experience with the default v4l2 tegra driver, we have written our own driver for capturing 4K from HDMI. Hope that helps, Regards [1] GitHub BuildGStreamer · InES-HPMM/linux-l4t Wiki. Linux kernel 3.10 forked from Nvidia Linux4Tegra for ...
Multi-threaded multi-camera capture for v4l2 and CUDA
2021年9月17日 · Hi, I’m using an AGX Xavier with Jetpack 4.6 (MMAPI 32.6.1). I have GMSL cameras which use the V4L2 drivers. I have studied and used the MMAPI sample 12_camera_v4l2_cuda to capture frames from the cameras and process in CUDA. I need to do this for multiple cameras simultaneously. Using pthreads, I have been able to capture from …
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 realtime (wall clock). Monotonic clock has been favoured in embedded systems whereas most of the drivers use the realtime clock.
Encode frames using Nvenc v4l2 - NVIDIA Developer Forums
2021年7月12日 · hi all, i’m working on a special application on Jetson Nano which have the following data flow : [camera]-----UYVY------>[VIC]----YUV420----->[NVENC]----H264---->[file] so, as you can see, the camera gives me UYVY images, i transform it using VIC to be readable by the encoder. but I’m struggling to transfer data to the encoder. I’m using V4L2 ( and i’m not intend …