Post #2176275

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• @0t79JeIfK01RHyzo@lemmy.ml 2026-02-23 05:07

  The version I have was copied from stackoverflow. It doesn't work very well, it makes a rough estimate to get the video file size under the set value. As an example ```bash resize video.mp4 10 ``` Which then resizes the video to 10 megabytes if possible. ::: spoiler resize.sh code ```bash file=$1 target_size_mb=$2 # target size in MB target_size=$(( $target_size_mb * 1000 * 1000 * 8 )) # target size in bits length=`ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$file"` length_round_up=$(( ${length%.*} + 1 )) total_bitrate=$(( $target_size / $length_round_up )) audio_bitrate=$(( 128 * 1000 )) # 128k bit rate video_bitrate=$(( $total_bitrate - $audio_bitrate )) ffmpeg -i "$file" -b:v $video_bitrate -maxrate:v $video_bitrate -bufsize:v $(( $target_size / 20 )) -b:a $audio_bitrate "${file}-${target_size_mb}mb.mp4" ``` ::: I'll probably replace it eventually.

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