ffmpeg -thread_queue_size 500 -re -i url_to_video.m3u8 -s 1920x1080 -i watermark.png -filter_complex \"[0:v][1:v]overlay=0:0\" -hide_banner -loglevel error -c:v libx264 -maxrate 3000k -bufsize 3000k -f flv -s 1920x1080 rtmp://a.rtmp.youtube.com/live2/my_token