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feat: virtual camera

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This commit is contained in:
Klesh Wong 2022-07-13 23:15:00 +08:00
parent d47fc51b3b
commit fb4b45fbad
1 changed files with 8 additions and 5 deletions
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13
bin/virtcam
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@ -14,16 +14,19 @@ sudo modprobe v4l2loopback -r -f
# create 2 virtual webcam # create 2 virtual webcam
sudo modprobe v4l2loopback video_nr=21,22 card_label=virtcam1,virtcam2 exclusive_caps=1 sudo modprobe v4l2loopback video_nr=21,22 card_label=virtcam1,virtcam2 exclusive_caps=1
# pipe actual webcam to virtcams # pipe actual webcam to virtcams
actualwebcam() { actualwebcam() {
if [ -n "$FAKER_PID" ]; then
kill -s INT "$FAKER_PID"
FAKER_PID=
fi
ffmpeg -f v4l2 -i /dev/video0 -codec copy -f v4l2 /dev/video21 -f v4l2 /dev/video22 >/dev/null 2>&1 </dev/null & ffmpeg -f v4l2 -i /dev/video0 -codec copy -f v4l2 /dev/video21 -f v4l2 /dev/video22 >/dev/null 2>&1 </dev/null &
echo $! echo $!
} }
ffmpeg -re -stream_loop -1 -i ~/Video/stub.mp4 -f v4l2 -vcodec rawvideo -pix_fmt yuyv422 -framerate 30 /dev/video21 >/dev/null 2>&1 </dev/null &
SPID=$!
echo "showing static image, press ENTER for actualwebcam"
read C
kill -s INT $SPID
while true; do while true; do
PID=$(actualwebcam) PID=$(actualwebcam)
echo piping actual webcam, press ENTER to start recording echo piping actual webcam, press ENTER to start recording
@ -33,7 +36,7 @@ while true; do
echo recording stopped echo recording stopped
ffmpeg -y -i ~/Video/seq.mp4 -vf reverse ~/Video/reversed.mp4 >/dev/null 2>&1 ffmpeg -y -i ~/Video/seq.mp4 -vf reverse ~/Video/reversed.mp4 >/dev/null 2>&1
echo reversed clip created echo reversed clip created
ffmpeg -y -i ~/Video/seq.mp4 -i ~/Video/reversed.mp4 -filter_complex "[0:v] [1:v] concat=n=2:v=1 [v]" -map "[v]" loop.mp4 >/dev/null 2>&1 ffmpeg -y -i ~/Video/seq.mp4 -i ~/Video/reversed.mp4 -filter_complex "[0:v] [1:v] concat=n=2:v=1 [v]" -map "[v]" ~/Video/loop.mp4 >/dev/null 2>&1
echo looping clip created echo looping clip created
kill -s INT $PID kill -s INT $PID
echo webcam stopped, enter looping mode, press [q] to resume webcam echo webcam stopped, enter looping mode, press [q] to resume webcam