Post date: 25-mag-2019 20.53.35
creare un microfono virtuale con
pactl load-module module-pipe-source source_name=virtmic file=/tmp/virtmic format=s16le rate=16000 channels=1
stream sul microfono
ffmpeg -re -i input.mp3 -f s16le -ar 16000 -ac 1 - > /tmp/virtmic
ffmpeg -re -i output1-mono.mp3 -f s16le -ar 16000 -ac 1 - > /tmp/virtmic
creare webcam virtuale
sudo apt-get install v4l2loopback-dkms
sudo modprobe v4l2loopback video_nr=5 card_label=“Virtual cam”
stream video da file
ffmpeg -re -i input.mp4 -map 0:v -f v4l2 /dev/video5
per vedere a video la webcam virtuale
ffplay /dev/video5
mostrare desktop
ffmpeg -f x11grab -framerate 15 -video_size 1280x720 -i :0.0 -f v4l2 /dev/video5
mostrare immagine
ffmpeg -loop 1 -re -i input.jpg -f v4l2 -vcodec rawvideo -pix_fmt yuv420p /dev/video5