Questions tagged [webcam]
A webcam is a device that records video and then uploads that video to a computer.
226 questions
0 votes
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77 views
How do I rename UVC Camera on host computer
I've spent all day trying to figure out how to rename the webcam I made using this tutorial. It shows up as UVC Camera on my Windows 11 PC and I want to change what the name of it is. I can't figure ...
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0 votes
1 answer
91 views
What do these kernel log USB camera messages mean?
This on a Pi 4 running Buster. A shell script on this machine grabs an image from the attached USB camera once every two minutes using fswebcam. I keep a log of this which records whether or not the ...
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2 answers
3k views
How to stream from Pi Camera to YOLO model?
I am new to Raspberry Pi and I want to do real-time object detection using YOLOv8 tentatively (will change if the fps is too low). I realize that by using the code below, it can't detect Pi Cam as the ...
2 votes
0 answers
352 views
Can not use the USB Camera
I'm trying to connect my USB webcam to Raspberry PI 3. First I tried to reach it with fswebcam image.jpg command, but it got timed out. --- Opening /dev/video0... Trying source module v4l2... /dev/...
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1 answer
1k views
How do I find out which resolutions are supported in mjpg-streamer?
I have mjpg-streamer running on an Orange Pi Zero 2 to stream a USB cam. The default 640x480 works. And when I change the resolution to 1280x720 it works. But I'd like a lower 16:9 resolution, and ...
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2 votes
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111 views
/dev/video* shows 16 devices
I want to capture a video stream using motion, but the FPS is REALLY low and I have the feeling that something is wrong ls /dev/video* shows 16 devices, is that normal? The Webcam is a USB Webcam by ...
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1 vote
0 answers
465 views
On Raspberry Pi 4 with Ubuntu 22.04 don't work ioctl
I have Raspberry Pi 4 (aarch64 Cortex-A72) with OS Ubuntu 22.04 LTS 64-bit installed. I try read frame from webcam. When I run this code: if (ioctl(fd, VIDIOC_DQBUF, &buf) < 0) { std::cout &...
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2 answers
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uv4l WebRTC stream not working on Raspberry Pi zero 2 w
I want to use WebRTC over my Raspberry Pi zero 2 w with an external webcam, so that I can communicate to other raspberrys, computers or smartphones. Problem is, that I'm very new to this topic. I ...
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1 answer
210 views
How to decrease RPi image capture time?
I have two camera connected to RPi (1 USB camera and 1 RPi camera). I need to capture both images to do some processing on them right after image capture I have this code: file1 = 'imagecapture' + '...
- 109
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68 views
Are there any cameras that take photos with a large resolution (over 20Mb) and work with Raspberry Pi?
I need for a work project to take photos using raspberry pi and a camera that costs less than 500$ and the resolution should be over 20Mb. I did not find any camera with larger resolution than 12Mb ...
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0 votes
1 answer
219 views
Viewing the captured content of the webcam live
How can I view the captured content of my webcam on Linux/Raspberry? I dont want to share it, only view the content live on my monitor. On windows Logitech has an official program where I can preview ...
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2 votes
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3k views
Motion exiting without any error (USB web camera)
I am trying to use Raspberry pi as a web camera streaming server. I am following this tutorial which uses Motion tool. When I start the motion service, it exists without giving me an error and when I ...
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0 votes
1 answer
1k views
What am I doing wrong with my Gst pipeline for v4l2 mjpg/yuvy to h264 rtp stream?
I am trying to stream webcam video to tcp or rtp, or whatever. The destination part is not what is bothering me, I know that might be erronous, but I have a mind to try some tcp/http and rtsp/rtp ...
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1 vote
1 answer
148 views
Distribute video feed from Pi to multiple network clients
I want to set up a webcam for a fish tank on the LAN at my office. I set up a Raspberry Pi model 3B with a camera and used https://github.com/jacksonliam/mjpg-streamer to stream it locally. It works ...
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2 votes
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245 views
Green frames when capturing webcam
We use RPI4 for automation. One of our use-cases is to capture image frames via webcam/HDMI grabber as fast as possible and do some analytics. We use python and opencv for capturing, but it's not ...
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