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動画ファイルをキレイなgifにしてくれるコマンドライン
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#!/bin/bash | |
CMDNAME=`basename $0` | |
while getopts i:s:f:e: OPT | |
do | |
case $OPT in | |
"i" ) is_import="TRUE" ; import="$OPTARG";; | |
"s" ) is_size="TRUE" ; size="$OPTARG" ;; | |
"f" ) is_fps="TRUE" ; fps="$OPTARG" ;; | |
"e" ) is_export="TRUE" ; export="$OPTARG" ;; | |
* ) echo "Usage: $CMDNAME [-a] [-b VALUE] [-c VALUE]" 1>&2 | |
exit 1 ;; | |
esac | |
done | |
if [ $# -eq 0 ]; then | |
echo "下記の引数を指定してください" | |
echo "-i : インポートする動画ファイル" | |
echo "-s : 縦横のサイズ。縦:横のピクセルで指定。-1を指定すると、他のサイズを元に縦横比を維持する\n例 : 600:-1" | |
echo "-f : fps。整数を入れてください" | |
echo "-e : エクスポート先のファイルパス" | |
exit 1 | |
fi | |
if [ "$is_import" = "TRUE" ]; then | |
: | |
else | |
echo "インポートする動画ファイルが選択されてません" | |
exit 1 | |
fi | |
if [ "$is_export" = "TRUE" ]; then | |
: | |
else | |
echo "ファイルの書き出し先が指定されていません" | |
exit 1 | |
fi | |
if [ "$is_size" = "TRUE" ]; then | |
: | |
else | |
size="-1:-1" | |
fi | |
if [ "$is_fps" = "TRUE" ]; then | |
: | |
else | |
fps=12 | |
fi | |
ffmpeg -i ${import} -vf "palettegen" -y palette.png | |
ffmpeg -i ${import} -i palette.png -lavfi "fps=${fps},scale=${size}:flags=lanczos [x]; [x][1:v] paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle" -y ${export} | |
exit 0 |
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