0
votes
0answers
54 views

Errors with Using Webcam

I have been having some issues accessing a webcam from my machine. Sometimes (not always) when I run a program that accesses the device (cheese, guvcview, and code using openCV), I get either of two ...
0
votes
2answers
771 views

v4l2 issues with webcam encoded to H.264

I am trying to send a H.264 webcam video feed over wifi to another computer using gstreamer. I am using this tutorial as a guide. I am using a Creative Live! Cam Connect HD as my webcam. The website ...
2
votes
0answers
270 views

No permission to access webcam on linux

I am using a raspberry pi with raspbian to capture webcam shots and upload them to a web server. However, when I rebooted just now I no longer have access to the webcam. I have no idea why this ...
2
votes
1answer
5k views

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 using MJPEG "protocol" and only ~10 fps using the YUYV. Can i choose between them using ffmpeg command line? ...
2
votes
1answer
697 views

Linux (v4l) webcam - make settings “stick”

My Logitech camera (C300) is properly detected and present at /dev/video0. However, by default the image has contrast and saturation set to maximum, which significantly degrades the image quality. I ...
1
vote
1answer
563 views

Why can’t two programs access my webcam simultaneously?

I first launch cheese and my webcam turns on. I then run vlc to grab the output of /dev/video0 but it fails with: [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy ...
3
votes
0answers
1k views

Webcam resolution, vlc and Linux

I'm trying to do some some streaming with a webcam, but so far the results are not good: everything I stream in 320x240 looks good, but as soon as I choose a higher resolution, the image quality gets ...
0
votes
1answer
160 views

VideoLAN device addressing in VLC

How do I get the VideoLAN device information that corresponds with /dev/video, and /dev/video1 for vlc targetting? This command kind of does what I want: vlc v4l2:// -vvv input_stream ...