I am capturing video of the screen using FFmpeg and its work perfectly with or without audio.
I want to capture video with silent audio and I am using "anullsrc" filter but it's not working
-y -rtbufsize 100M -f dshow -framerate $fps$ -i anullsrc=channel_layout=stereo:sample_rate=44100 -i video="screen-capture-recorder" -c:v libx264 -r $fps$ -preset ultrafast -tune zerolatency -crf 28 -pix_fmt yuv420p -movflags +faststart "$output$"