Questions tagged [webcam]
A webcam is a device that records video and then uploads that video to a computer.
222
questions
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14 views
How can I solve the green screen problem at uv4l uvc cam?
I try to connect UV4L streaming server for webRTC
and I connected command by
we use USB cam logitech and when i open UV4L using driver uvc
uv4l --auto-video_nr --driver uvc --device 0c33:6344
this is ...
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0answers
25 views
2 out of 6 USB webcams appearing when using lsusb
I might have read every possible post regarding this topic, but I have never found a clear answer.
I face the following scenario: I have a remote Raspberry Pi 4 connected to an actively powered USB ...
0
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1answer
47 views
USB camera not identified
I have a laptop camera wired to a USB cable. This camera works properly on my Ubuntu laptop. However, it does not on the pi.
I have a Raspberry PI 4 (4GB) with Raspbian OS lite installed.
I installed ...
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0answers
27 views
How to use Raspberry Pi to encode video from an IP camera to stream to Azure?
Related to this question
https://stackoverflow.com/questions/33530521/storing-live-video-on-azure-media-services
Since WireCast is only for windows what is the alternative I could use to create an ...
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2answers
56 views
How can I remotely access the command line on my Raspberry Pi without Wifi?
For a project I'm doing with a Raspberry Pi Zero, I need to access raspi-config, compile some software, and do funky stuff with systemctl. With my other projects, I've always either SSHed into the Pi ...
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0answers
27 views
Cannot get video from usb webcam through avconv on raspbian
I can't seem to get avconv/ffmpeg to read from my webcam on my raspberry pi 3 and I can't seem to find anything that will fix the situation, all the posts that I've seen have just been resolved with a ...
0
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0answers
89 views
USB Webcam not working with browser
I am attempting to use a USB webcam with a web browser. Specifically, the webcam is a Logitech HD Webcam C615 (which is listed as compatible at https://elinux.org/RPi_USB_Webcams), and either ...
2
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1answer
807 views
Pi4B how to rtp UDP stream video with webcam and Gstreamer
I have a fresh installed Buster(Release Date: 2020-08-20) on my Pi4B
I am able to stream with pi Camera by doing
gst-launch-1.0 -v v4l2src device=/dev/video0 ! video/x-raw,width=1280,height=720,...
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0answers
26 views
Using Android Phone as Webcam via USB to use Zoom or Google Meet [duplicate]
People have been asking for help to be able to purchase a tablet or a computer that they can use for online classes. Most people here in the Philippines don't have the means to buy any of it. However, ...
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49 views
Connecting Raspberry PI with Pi Camera to my computer via USB
There are many tutorials about setting up a RasPI with camera as an IP camera and then using software on the PC that takes the IP stream and looks like a webcam such that Zoom or whatever can use the ...
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0answers
141 views
USB webcam (spherical camera) not working with Raspberry Pi OS
I'm feeling utterly hopeless with this one, but my USB spherical camera, Insta360 Air, no longer works with Raspberry Pi. It used to work in a previous OS (forgot the kernel version but before the OS ...
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0answers
16 views
Raspberry Pi Camera (from the Raspberry Board) and a Webcam plugged into one of the USB ports. Want them to work together
I want to use both my Raspberry Pi Camera (from the Raspberry Board) and a Webcam plugged into one of the USB ports. Currently, when I used the Raspberry PI Camera, the USB port Webcam does not work. ...
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0answers
172 views
Stream from USB webcam to rpi3+ hdmi screen
I'm looking for something I think should be simple, but haven't been able to find any resource that shows how to do it.
I have a USB webcam attached to my PI 3+. I also have a monitor attached to the ...
0
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1answer
57 views
Two USB cameras and ASP.NET Core
I want to build a project based on Raspberry Pi 4B and I would like to hear opinion someone's more experienced with this platform (as I am mostly SW and did some projects with Arduinos) if it is ...
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0answers
78 views
Why No /dev/v4l/by-id?
I want to refer to a USB camera by ID in an fswebcam configuration file.
/dev/v4l/by-id should look like this:
pi@raspsky:~ $ ls -a /dev/v4l/by-id
. usb-HD_Camera_Manufacturer_USB_2.0_Camera-video-...
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0answers
433 views
Using USB webcam with integrated audio at the same time
I am trying to use a usb webcam for video and microphone at the same time on my raspberry pi4, on buster. I just set the system up from scratch and am ready to do that again, if it helps with trouble ...
0
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1answer
22 views
Outputting RPi video into a laptop
I've been researching on how to get my RPi video output to show up on my laptop. Space requirements dictates that using an external monitor is extremely cumbersome, and since I'm not using my home ...
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0answers
46 views
I want to use a Rasberry Pi as a USB A/V device to a windows computer
Some background might help further this discussion.
We have multiple classrooms that have a variety of USB cameras and microphones installed in them. I want to use a Raspberry Pi to help manage ...
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0answers
629 views
Using Raspivid and Gstreamer to stream camera video over the network to VLC player
I am trying to stream video from my raspberry pi camera over my LAN to a a windows machine running VLC. I have been able to do it successfully using "raspivid" in conjunction with "clvc" to stream ...
1
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0answers
96 views
Can't stream video
I have a Pi 3 model B Rev 1.2 and I would like to use it as a surveillance camera server.
There seems to be no stream at all. I don't know if the cam isn't working (it works on my ubuntu workstation) ...
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0answers
1k views
USB Webcam Problem
My webcam is not working properly, i have even put it on a powered hub.
I have a new raspberry pi 4
fswebcam -d /dev/video0 image.jpg
--- Opening /dev/video0...
Trying source module v4l2...
/dev/...
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0answers
67 views
python (2/3) functions to use a USB-camera? [closed]
After many attempts using pygame, or OpenCV to capture and display pictures from a standard USB-camera I decided to ask this question.
Mplayer worked with all cameras I have tested (a=Logitech, b=...
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5answers
2k views
RaspberryPi 3 B+: RPi restart whenever I tried to run two webcams simultaneously
I have a very strange problem with my RPi. Whenever I tried to run two webcams simultaneously, RPi restarts itself. A few months back I can run two webcams simultaneously without such a problem (same ...
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0answers
37 views
Recording two simultaneous video feeds from webcams on Raspberry Pi 4?
I am wanting to have a Raspberry Pi 4 connected to two USB webcams recording at 720P with 30FPS.
Is this computationally possible with the specs of the Pi?
I am a little concerned about the data ...
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0answers
27 views
Is Raspberry Pi Using the Same Coding and Encoding in Live Video Streaming as in Ubuntu and on other Machines?
Recently, I have been tagged to work with the Raspberry Pi 4, and with the action camera that I have plugged to work with it as a webcam. However, the Live Video that is streamed through Raspberry Pi ...
2
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1answer
357 views
Raspberry Pi4 error capturing image with OpenCV, image comes half green
I am using a common logitech webcam with OpenCV. When I was using my RPI3 I had no trouble, but I wanted to improve my system so I bought a RPI4.
Upon setting up my system with RPI4 using raspian ...
1
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0answers
34 views
Stream Webcam to Windows pc
Does anyone know how I can stream the webcam from my raspberrypi to my windows pc via wifi?
Ive tried gstreamer but this just doesnt work for me and ive read the performance is really bad.
there ...
1
vote
1answer
374 views
Flask app takes 60% CPU on Raspberry Pi Zero W
I am developing Flask rover app on Raspberry Pi Zero W. And I having problems with CPU perfomance. I used flask profiller to find weak spot in my app, but everything seemed normal. I have Raspberry ...
1
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1answer
832 views
imutils VideoStream(src=0) return VIDIOC_QBUF: Invalid argument in raspberry pi
I am only doing a simple code in my Raspberry Pi 4:
from imutils.video import VideoStream
# initialize the video streams and allow them to warmup
print("[INFO] starting cameras...")
webcam = ...
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0answers
98 views
Webcam FPS Very Low
I just plugged in a Microsoft Lifecam Studio webcam into my Raspberry Pi 4 Model B. I used gucview to test it out along with Google Hangouts for video conferencing (in Chromium) but the FPS was ...
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0answers
146 views
Assign multiple webcams to fixed /dev/video* at boot
I'm currently working on a project that requires taking pictures with 3 USB webcams but whenever I boot the raspberry, it assigns randomly a /dev/video "address" to each one of them. I'm not using ...
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0answers
1k views
VLC stream RTSP USB webcam
I'm trying to stream a usb camera using VLC. I used this page to get it working on a pi zero with a raspberry pi camera attached to it.
On a second RPI 3B+ I'd like to do the same only with a USB ...
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0answers
94 views
I don't know why suddenly mjpg-streamer and webcam stop working
I have made a program that uses three webcams and three ultrasonic sensors using raspberry pi 3 and python 3. When each ultrasonic sensors detect stuff in front of them, webcam take a picture of it. ...
2
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1answer
129 views
Allow more power for USB Devices?
Is there a way to allow more power to USB Devices powered by the Pi I have a model B+, and I am unable to power my Webcam plugged into the Pi it has a single USB Connection so there's no way to power ...
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0answers
117 views
USB Inspection camera
I have a USB Inspection camera, identified as
"Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) 300k Pixel Camera"
This is mounted at /dev/video0 and I can capture stills using ...
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0answers
1k views
Single webcam using /dev/video0 and /dev/video1
With just one webcam attached, I get two devices: /dev/video0 and /dev/video1 They appear to have identical attributes. It's random which one gets bound to which entry, and only 1 of them actually ...
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0answers
278 views
RaspberryPi 3 B+: Error in running two webcams simultaneously
I purchased two webcams (Logitech C310 HD Webcam) to use with RaspberryPi (RPi 3 B+ model). When I run individual cameras, they are running fine but when I tried to run both cameras at the same time ...
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0answers
1k views
Raspberry Pi 3 B+: Many video devices are showing
I attached two webcams to RaspberryPi 3B+ using USB power hub. But when I wrote ls -la /dev/video* in Terminal, output shows many video devices as shown below:
crw-rw----+ 1 root video 81, 0 Jun 7 ...
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0answers
426 views
webcam issue after UV4L installation
I am trying to make a usb webcam work on my rpi but it drives my nuts.
I have Rpi 3 model B+
Also I've downloaded the newest raspbian image (stretch with desktop and recommended software). It's ...
1
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0answers
647 views
Error opening USB Cam with OpenCV4: GStreamer-CRITICAL **: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed
After installing OpenCV4.0 on my RPi, i tried a simple script below with a Logitech USB Cam (720p) but at "cam = cv2.VideoCapture(0)" it gives me an error "(python:num process): GStreamer-CRITICAL **: ...
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0answers
129 views
The first picture I take with a USB webcam as soon as I connect it looks good, but the following ones are dark
I am experiencing the following issue:
I connect a USB webcam (Logitech Quickcam Pro 4000) to my Raspberry Pi 3 B+ and take a picture using fswebcam and looks good. Sometimes I take a second picture,...
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0answers
38 views
How to connect/link two raspberry pies for video precessing?
i am fairly new to raspberry pi platform so this question may be too basic. I am working on a project where i need at least 2 camera modules for simultaneous video recording and processing and taking ...
1
vote
2answers
591 views
Running pygame and webcam works from command line not when using a service
I am writing a small program for a Museum display that captures a still from a webcam, displays it on screen, waits a few seconds and takes another, loop forever. This all works fine from the command ...
2
votes
1answer
4k views
how to increase fps for raspberry pi for object detection
I'm having low fps for real-time object detection on my raspberry pi
I trained the yolo-darkflow object detection on my own data set using my laptop running windows 10. When I tested the model for ...
2
votes
1answer
2k views
What happens if I force_turbo (and over_voltage) but do not increase ARM, etc
I have had issues with running RPI cam control and pikrell cam on Pi Zero W and found a post where it was recommended to use:
over_voltage=4
force_turbo=1
(https://www.raspberrypi.org/forums/...
0
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0answers
2k views
Stream USB webcam with audio
I have a raspberry pi zero with a Logitech C920 webcam. I am hoping to do a video server (baby monitor) with these. I hope to use the H.264 encoding provided by the C920 and combine it with the audio ...
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0answers
707 views
Live video streaming over bluetooth
I'm currently making a little project, and i need my Raspberry Pi 3b to transmit an USB webcam stream trough Bluetooth to display to an Android smartphone or any other portable device (like another ...
1
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1answer
39 views
Only allow a specific peripheral to be connected to a USB port
I am turning my raspberry pi prototype device into a market product. The data and the program running on the pi must be protected. But we have a USB webcam attached to it (provided by us, hence we ...
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0answers
1k views
PS3 Eye USB Camera Not Detected - Raspbian Stretch
After updating to Raspbian Stretch (kernel 4.14.90-v7+), my Playstation 3 Eye camera is no longer detected on any of the three Pi3 Model Bs that I have. lsusb does not report the device and dmesg ...
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1answer
856 views
Raspberry Pi Zero as webcam [duplicate]
I read some case, like using dwc2 and g_webcam in /boot/config and cmdline. but hard to understand and doesn't work. and can't find a tutorial, there are some tutorials only about serial and ethernet.
...
