Screen recording with ffmpeg under Windows

record.sh

#!/usr/bin/env bash
# capture screen with ffmpeg and stop it with CTRL-C
# https://trac.ffmpeg.org/ticket/6336
# https://bugs.python.org/issue42962

SIZE="1920x1080"
VIDEO="video.mp4"

if [ -f "$VIDEO" ]; then rm "$VIDEO"; fi

# start video capture
ffmpeg -f gdigrab\
       -offset_x 0 \
       -offset_y 0 \
       -video_size "$SIZE" \
       -i desktop \
       -show_region 1 \
       -pix_fmt yuv420p \
       "$VIDEO" > /dev/null 2>&1 &

# run program
echo "Running demo"
sleep 3

# stop video capture
WINPID=$(ps aux | grep ffmpeg | awk '{print $4}')
python -c "import os, signal; os.kill($WINPID, signal.CTRL_C_EVENT)"