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Questions tagged [webcam]

A webcam is a video camera that sends its video data to a computer in real time, as opposed to recording it first.

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How can I take a picture with my webcam in Windows 7?

I know it existed as sort of a folder in Windows Explorer in at least Windows XP, but I just can't seem to find it in Windows 7... How can I take a picture with my webcam in Windows 7 without using any 3rd party tools?
Svish
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My webcam just came on "out of the blue"

I have a Microsoft LifeCam HD sitting atop my monitor. Today, completely out of the blue, its light came on -- I was simply browsing the web (in Chrome) when it happened. After about 5 minutes the webcam turned off. Naturally, I immediately…
AngryHacker
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Finding out which app is using the webcam

Yesterday I was working on my laptop. Suddenly I noticed that the indicator light of the webcam was on, despite the fact that I wasn't making a video call or using the webcam in any other way at the moment. It freaked me out. It freaked me out that…
Ram Rachum
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Greenscreen (aka chroma key) effect with a webcam?

This is not the blue screen of death I am speaking of, but the process called bluescreening (also known as green screen, or Chroma Key). It removes a particular colored background from an image so that it can be superimposed on some other…
Axxmasterr
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Using multiple USB webcams in Linux

Running more than one USB webcam in Debian/Linux results in the the following error: libv4l2: error turning on stream: No space left on device VIDIOC_STREAMON: No space left on device What initially seemed to be a programming issue in OpenCV turned…
rachelderp
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How can I list the available video modes for a USB webcam in Linux?

I faintly recall that once upon a time, I found a command-line tool (something involving "UVC") to list the supported resolutions & modes of a USB webcam camera (e.g. PAL, 640x480) in Linux, but alas, I've lost it. Does anyone know what I'm talking…
gatoatigrado
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Webcam driver that uses an image or video file as the video source

Does anyone know of software that is recognized as a webcam/video device in Windows and lets you pick an image (JPEG, etc) or video (MPEG/AVI) as the video source? Idea being that you could do something like a Skype call and instead of having your…
silent__thought
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Can I use a Canon SX 30 camera as webcam?

Can I use my Canon SX 30 as my web cam? I have come along a lot of tutorials and videos telling us how to do this using ZoomBrowser that is shipped along with the camera. But it seems that canon sx 30 is not compatible with it. Is there any other…
user87890
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Use a IP-camera as a virtual camera

I want to use an IP camera with webrtc. However webrtc seems to support only webcams. So I try to convert the IP camera's stream to a virtual webcam. I found software like IP Camera Adapter, but they don't work well (2-3 frames per second and delay…
Minz
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ffmpeg open webcam using YUYV but i want MJPEG

I need ffmpeg to open webcam (Logitech C910) in MJPEG mode, because the webcam can give ~24 fps using the MJPEG "protocol" and only ~10 fps using the YUYV. Can I choose between them using the ffmpeg command line? xx@(none) ~ $ v4l2-ctl…
pavelkolodin
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Small WiFi webcam for quasi-outdoor use

I’d like to have a webcam pointed toward my house, so that I can check (via Safari on iPhone) if I left the garage door open, if there’s a package on my doorstep when I’m off on a business trip, etc. My idea is to place a small webcam inside the…
Kevin L.
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Windows 7 Webcam recording software

I want to record a video on my webcam on Lenovo T61 powered by Windows 7 Professional. I've noticed it's working differently from Windows XP. Can anyone care to recommend a decent webcam software that I can use for recording video? Thanks!
stanigator
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Is it possible to set a default camera device to show screen instead of the output of an actual, physical camera?

I am using Windows 10 and on many websites etc. It asks permission to use your camera, which points to your default camera in Windows. I was wondering if there was a way to setup that default camera to show your actual Windows screen, instead of the…
B''H Bi'ezras -- Boruch Hashem
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Identifying USB devices

I have five USB cameras, same brand, same model (Canyon CNR-FWC120H). They are used to monitor different scenes 24/7. I need to somehow identify which camera is which from the Linux (Debian) console or programmatically (any language). I’ve tried…
Ivan Kovacevic
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How can I remotely determine if a laptop has webcam from the console?

I have multiple laptops I can remote into, but I do not know whether they have a working webcam. I cannot see them. I do not need to access the webcams; I just need to know if one is present. Is there a way to remotely tell whether a laptop has a…
theforestecologist
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