ffmpegHow to change video resolution and keep aspect ratio
In order to keep aspect ratio, set only one target dimension (width or height) and leave the other one as -1:
ffmpeg -i in.mp4 -vf scale=-1:180 out.mp4ctrl + c-i in.mp4input video file | -vfapply specific video filters |
scale=change video resolution to specified size | -1width will be calculated automatically based on aspect ratio |
180set height to | out.mp4resulting video file |
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