====== Video at Linux ======

<code bash>
#!/bin/bash -u

sudo modprobe v4l2loopback devices=1 video_nr=9 card_label="OBS Cam 2"
sudo modprobe snd-aloop index=9 id="OBS Mic"
pacmd update-source-proplist alsa_input.platform-snd_aloop.0.analog-stereo device.description=\"OBS Mic\"



ffmpeg -probesize 32 -analyzeduration 0 -listen 1 -i rtmp://127.0.0.1:1935/live -map 0:1 -f v4l2 -vcodec rawvideo /dev/video9 -map 0:0 -f alsa hw:10,1

sudo modprobe -r v4l2loopback
sudo modprobe v4l2loopback devices=1 video_nr=10 card_label="WebCamDummyV4l2" exclusive_caps=1

ffmpeg -listen 1 -i rtmp://127.0.0.1:1935/live -f v4l2 -vcodec rawvideo /dev/video10

ffmpeg -probesize 32 -analyzeduration 0 -listen 1 -i rtmp://127.0.0.1:1935/live -f v4l2 -vcodec rawvideo /dev/video10
</code>