ffmpeg

Universal media converter for audio/video transcoding, filtering, and format conversion.

$ ffmpeg -i input.mp4 -vf "scale=1280:720" output.mp4

Input file (-i)Output fileResolution preset

1080p

720p

480p

360p

240p

720p auto

1080p auto

Custom resolution

Overwrite output (-y)

Examples

# Scale to 720p
ffmpeg -i input.mp4 -vf scale=-1:720 output.mp4

# Scale to 1080p
ffmpeg -i input.mp4 -vf scale=1920:1080 output.mp4

# Scale to half size
ffmpeg -i input.mp4 -vf scale=iw/2:ih/2 output.mp4