How to use number of plane in V4l2 command

tini981 · 04-16-2023, 10:26 PM

Dear Members ,

I am using below V4l2 command to capture the image
v4l2-ctl -d /dev/video0 --set-fmt-video=width=1312,height=1200,pixelformat=Y10 --stream-mmap=4 --stream-count=167 --stream-to=/tmp/caprs1.raw --stream-skip=1

I have below 2 question :-

1. How to specify number of plane in the command ?
2. What is the exact role of --stream-skip .As per documentation it will skip the no of frame count .. so in above case it will skip first frame and only stream 166 frame

teckk · 04-17-2023, 03:29 PM

What is /dev/video0? A cam? And you want to get a frame or a section of the video?

Can you play /dev/video0 with ffmpeg/ffplay?

Quote:

1. How to specify number of plane in the command

I don't know what that means.

Need a good deal more info.

For v4l2
https://linuxtv.org/

Code:

man v4l2-ctl