ffmpeg -f gdigrab -framerate 60 -i desktop -f dshow -i audio="Microphone (2- Realtek Audio)" -c:v libx264 -preset slow -crf 18 -profile:v high -level 4.0 -pix_fmt yuv420p -bf 2 -coder 1 -b:v 15M -c:a aac -ar 48000 -ac 2 -b:a 384k output.mp4