shokai https://blog.hatena.ne.jp/shokai/ 橋本詳解 https://shokai.hatenadiary.org/ Mac Ruby exiftoolを入れる sudo port install p5-image-exiftoolgem install mini_exiftool#!/usr/bin/env ruby require 'rubygems' require 'mini_exiftool' exif = MiniExiftool.new ARGV.first w = exif['ImageWidth'] h = exif['ImageHeight'] rot = exif['Rotation'] puts "size:#{w}x#{h}, rotation:#{rot}" 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshokai.hatenadiary.org%2Fentry%2F20101114%2F1289725466" title="exiftoolで動画のサイズや回転を取得 - 橋本詳解" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2010-11-14 18:04:26 rich https://shokai.hatenadiary.org/entry/20101114/1289725466 1.0 100%