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update with microphone gain stuff

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pants
2025-07-31 14:20:39 -07:00
parent c79ce4eb89
commit 8867621f7a
1 changed files with 7 additions and 2 deletions
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README.md
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@ -9,7 +9,7 @@ lpadmin -p brother -E -v "ipp://10.100.0.205/ipp/print" -m everywhere -L "Mom's
manual adding is needed as network hostname resolution fails becuase yeah. manual adding is needed as network hostname resolution fails becuase yeah.
If it didnt fail, hardcoding a dynamic IP address like this wouldn't be wouldn't be necessary. If it didnt fail, hardcoding a dynamic IP address like this wouldn't be wouldn't be necessary.
## Webcam ## Webcam / microphone
v4l2 may create multiple nodes in /dev for different formats v4l2 may create multiple nodes in /dev for different formats
one example being mine which puts the H264 stream on /dev/video2 one example being mine which puts the H264 stream on /dev/video2
@ -19,9 +19,14 @@ v4l2-ctl -d /dev/video2 --set-fmt-video=width=1920,height=1080,pixelformat=H264
and this will record it with zero latency: and this will record it with zero latency:
mpv av://v4l2:/dev/video2 --profile=low-latency --untimed mpv av://v4l2:/dev/video2 --profile=low-latency --untimed
this works on framework laptops: (not sure why, but setting MJPG with v4l2-ctl doesnt make mpv pick 1920x1080 by default...) framework laptops: (not sure why, but setting MJPG with v4l2-ctl doesnt make mpv pick 1920x1080 by default...)
mpv --demuxer-lavf-o=video_size=1920x1080,input_format=mjpeg av://v4l2:/dev/video0 --profile=low-latency --untimed mpv --demuxer-lavf-o=video_size=1920x1080,input_format=mjpeg av://v4l2:/dev/video0 --profile=low-latency --untimed
microphone gain is defaults to 100%, which is way too loud. set it to something lower with amixer, provided by alsa-utils:
-> amixer set Capture 40%
## fprintd ## fprintd
firstly, enroll with firstly, enroll with
- fprintd-enroll - fprintd-enroll