Resizing:
ffmpeg -i nothing.mp4 -s 1280x720 -c:a copy nothing-720p.mp4
Text Adding:
1080p:
ffmpeg -i x1080p.mp4 -vf "drawtext=text='CryAnime.com':fontcolor=white@0.8:fontsize=10:boxborderw=5:x=5:y=5" -codec:a copy res.mp4 -y
720p:
ffmpeg -i x720p.mp4 -vf "drawtext=text='CryAnime.com':fontcolor=white@0.8:fontsize=8:boxborderw=5:x=5:y=5" -codec:a copy res.mp4 -y
480p:
ffmpeg -i x480p.mp4 -vf "drawtext=text='CryAnime.com':fontcolor=white@0.5:fontsize=8:boxborderw=5:x=5:y=5" -codec:a copy res.mp4 -y
Animated bottom text with resize:
ffmpeg -i x480p.mp4 -vf "drawtext=enable='between(t,t/\2,20)':text='CryAnime.com':fontcolor=white@0.8:fontsize=9:boxborderw=5:x=w-t*70:y=h-line_h-20" -s 1280x720 -c:a copy res.mp4 -y