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shirakaba/ffmpeg.md

Last active June 21, 2022 03:25
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Halve the size of a video, but properly
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ffmpeg.md

Use the flag:

-vf "scale='bitand(oh*dar, 65534)':'bitand(ih/2, 65534)', setsar=1"

For example (this also removes metadata and audio, and re-encodes at high quality):

ffmpeg -i landscape_safe_area_insets.mov -qscale 0 -vf "scale='bitand(oh*dar, 65534)':'bitand(ih/2, 65534)', setsar=1" -metadata location="" -metadata location-eng="" -an landscape_safe_area_insets.mp4

From: https://stackoverflow.com/a/49948025

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