All Questions
106
questions
2
votes
0
answers
2k
views
Is it possible to crop the webcam video on Linux?
Because of the increasing number of virtual meetings I upgraded my setup and purchased a new webcam (Logitech C920s HD Pro Webcam). The image quality is great, but the viewing angle is much wider than ...
- 787
5
votes
1
answer
4k
views
FFmpeg w/ V4L2 for virtual webcam on Linux that crops, filters real uvc webcam
Wondering if it would be possible to use ffmpeg w/ v4l2 support (on say Ubuntu Linux) to create a virtual webcam device, that presents a transformed version of real webcam's output. The idea would be ...
- 659
0
votes
1
answer
636
views
How can I stream video from a webcam to a file on a Beaglebone Black?
I'm trying to stream some data from a USB webcam to a file on a BeagleBone Black-based device. I'm just trying to test the USB connection, so I don't care about the output format, and don't want to re-...
- 138
0
votes
0
answers
439
views
Switch camera to screen while switching tabs in browser
I am a student, who has started using online libraries (based on the concept of social accountability). A library in Indian/UPSC context is a bit different from a standard library elsewhere as it ...
- 109
0
votes
1
answer
55
views
How to manage video feeds in WIndows 10?
I'm attempting to use some software that doesn't allow me to select which video feed it's taking in, so all it's seeing is my blank virtual camera and not my actual webcam. I've tried searching for ...
- 147
0
votes
0
answers
89
views
Use PC screen on Laptop OBS?
I am trying to set up a live stream on Twitch with a webcam showing stuff. Due to my lack of a professional webcam I used to connect my phone camera to my PC. However, that setup suffers significantly ...
user1210494
2
votes
0
answers
1k
views
Ubuntu ffmpeg fake webcam with mp4 error
I tried to send video (mp4) to webcam
as I follow the instruction from https://askubuntu.com/questions/881305/is-there-any-way-ffmpeg-send-video-to-dev-video0-on-ubuntu , I recompile v412
$ffmpeg -re -...
- 21
1
vote
1
answer
2k
views
Saving pictures using ffmpeg from my webcam with both strftime and %%d
I tried saving image from my webcam, since strftime in ffmpeg 4.2.2 does not provide microseconds, to avoid overwriting the image in the same seconds, I plan to use both strftime and sequence number.
...
2
votes
1
answer
2k
views
Changing FPS on zoom video in Linux
I have bought a new Logitech C920 HD Pro Webcam and when running it the florescent strobe lights in the room cause a flickering in the video.
I can fix this by changing the fps of the webcam to 20fps ...
- 121
1
vote
0
answers
123
views
Using ChromaCam to remove background from an MP4 video
How can I treat an MP4 video as a webcam input, so as to feed it into ChromaCam (e.g. in OBS Studio) for the purpose of automatic background removal?
1
vote
0
answers
69
views
Using -skip_threshold with mpeg4 encoder in ffmpeg
Can anybody please shed a light on subj - I didn't find anything useful on the net.
What I'm trying to do is to eliminate duplicate frames during webcam stream recording. I know about existance of "...
- 11
0
votes
1
answer
269
views
Encrypting folders on an sd card
I bought a webcam you can use to take photos and videos in the normal way with the help of a micro SD card.
Can the individual folders of this SD card (or even the entire SD card) be encrypted, or ...
- 1
3
votes
0
answers
3k
views
MS Teams on Linux - video effects
So I have to use MS Teams for work. Thankfully there is a linux client, but it's missing a few features. I'm looking simulate the background blur effect, but I'm not quit sure where to begin.
Teams ...
- 39
1
vote
1
answer
985
views
C270 webcam + LED ceiling light + zoom = luminosity wave pattern
I have a Logitech C720 webcam which I use for video chats, in particular with Zoom. Also, I'm sitting in a room with a small amount of sunlight, and light from a 48W, 3000K light, led-based, ceiling-...
- 9,814
3
votes
0
answers
190
views
Use PC webcam as Android Camera
I've seen a lot of tutorials online on how to use an Android as a webcam for a computer, but none the other way around. Is it possible to use a computer webcam as the video input on an Android, ...
- 31