7
votes
Accepted
Get h264 from Webcam Logitech C922
The problem is that the C922 does not advertise its H264 stream over UVC whereas the C920 does. This is because Logitech did not want to enable general use of the H264 for the C922, but instead wanted ...
- 86
3
votes
Problem using vlc without X
I have found out that in addition to vlc-bin, installing vlc-plugin-base (~500 Mbyte) solves my problem. Writing cvlc /opt/vc/src/hello_pi/hello_video/test.h264 now displays the video.
But isn't there ...
3
votes
VLC - Unable to open MRL 'v4l2:///dev/video0'
Your user doesn't have permissions to open /dev/video because that dev file is owned by root user and video group. You need to add your user to the video group.
usermod -aG video ${USER}
The a is ...
- 131
2
votes
Get h264 from Webcam Logitech C922
You may have to force the stream mode for your camera.
First chek if MPEG or H264 is really available :
v4l2-ctl --list-formats
Using v4l2-ctl --all you will see the current resolution and pixel ...
- 1,406
2
votes
1
vote
Accepted
Creating a "video black" gap between videos
I found that using:
setterm -blank force; cvlc -f /path/to/videos/
solves the problem when running cvlc from the console.
- 155
1
vote
VLC - Unable to open MRL 'v4l2:///dev/video0'
As per this answer from the archlinux forums, it seems that vlc may require the zvbi package to be able to open v4l2 devices. Indeed, installing it solved the problem for me.
- 111
1
vote
Get h264 from Webcam Logitech C922
There is a H264 UVC extension, where you can enable muxing the H264 stream into the MJPG stream. After that, you can read the H264 frames from the APP4 JPEG markers.
You can read about it from ...
- 151
1
vote
Directing mjpeg video to file w/ cvlc
I figured out what my problem was. I was using the wrong 'muxer'. When I switched to using the 'ogg' muxer, I was able to write to a file just fine. For the record, the command that is working for ...
- 111
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